JP2024067254A - furniture - Google Patents

Abstract

To provide furniture capable of preventing dust and the like adhering to a part arranged along an installation surface before the posture is changed from adhering to a user when a posture is changed in the furniture which can be installed in different postures with respect to the installation surface, and whose height of the functional part can be changed.SOLUTION: A support structure 2 includes a first edge part 41 extending in a predetermined direction, a second edge part 42 extending in a direction intersecting with the direction that the first edge part 41 extends, a first fixed part, and a second fixed part. The furniture can be installed either in a first posture in which the first edge part 41 is arranged along an installation surface 11, and at least a part of the first edge part 41 touches the installation surface 11 or in a second posture in which the second edge part 42 is arranged along the installation surface 11 and at least a part of the second edge part 42 touches the installation surface 11. A height dimension of a functional part 3 fixed to the first fixed part from the installation surface 11 in the first posture, and a height dimension of the functional part 3 fixed to the second fixed part from the installation surface 11 in the second posture are set for different values.SELECTED DRAWING: Figure 1

Description

The present invention relates to fixtures.

As an example of a chair that allows the seat height from the surface on which it is placed to be changed, there is a chair that has a seat that is offset from the vertical center on a support structure that touches the surface and supports the seat, and that allows the user to sit on the seat even when the chair is turned upside down and placed on the surface on which it is placed (see, for example, Patent Document 1). With such a chair, the seat height from the surface on which it is placed can be changed by turning it upside down.

Japanese Utility Model Publication No. 48-017139

However, when the chair disclosed in Patent Document 1 is turned upside down, the lower end of the support structure that was in contact with the installation surface before the chair was turned upside down is positioned at the upper end of the support structure. Therefore, if dust or the like from the installation surface is attached to the lower end of the support structure that was in contact with the installation surface before the chair was turned upside down, the dust or the like will be attached to the upper end of the support structure after the chair is turned upside down. Since the upper end of the support structure is expected to become the armrests and backrest of the chair, there is a risk that the user of the chair will come into contact with the upper end of the support structure and that dust or the like will adhere to their clothes, hands, etc.

The present invention aims to provide a piece of furniture that can be installed in different positions relative to the installation surface and has adjustable heights for functional parts such as chair seats, and that can prevent dust and other particles that have adhered to parts that were aligned along the installation surface before the position was changed from adhering to the user when the position is changed.

In order to achieve the above object, the fixture of the present invention has a support structure to be installed on an installation surface and a functional part detachably fixed to the support structure, the support structure having a first edge extending in a predetermined direction, a second edge extending in a direction intersecting the direction in which the first edge extends, a first fixing part to which the functional part can be detached, and a second fixing part provided at a position different from the first fixing part to which the functional part can be detached, and can be installed in either of a first posture in which the first edge is arranged along the installation surface and at least a portion of the first edge is in contact with the installation surface, and a second posture in which the second edge is arranged along the installation surface and at least a portion of the second edge is in contact with the installation surface, the functional part is fixed to the first fixing part in the first posture and fixed to the second fixing part in the second posture, and the height dimension from the installation surface of the functional part fixed to the first fixing part in the first posture and the height dimension from the installation surface of the functional part fixed to the second fixing part in the second posture are set to different values.

The height dimension from the installation surface of the functional part fixed to the first fixing part in the first position and the height dimension from the installation surface of the functional part fixed to the second fixing part in the second position are set to different values. This makes it possible to change the height of the functional part, such as a chair seat, by installing the fixture in a different position relative to the installation surface.
The first edge and the second edge of the support structure extend in directions intersecting each other. As a result, when the first edge is disposed along the installation surface in the first position, the second edge extends in a direction intersecting the installation surface, and is not disposed to face upward along the upper edge of the support structure, and is disposed in a position where it is difficult for the user to contact. Also, when the second edge is disposed along the installation surface in the second position, the first edge extends in a direction intersecting the installation surface, and is not disposed to face upward along the upper edge of the support structure, and is disposed in a position where it is difficult for the user to contact. Therefore, when the position of the fixture is changed from the first position to the second position, even if dust or the like from the installation surface is attached to the first edge that is disposed along the installation surface and at least a part of which is in contact with the installation surface before the change, the dust or the like can be prevented from adhering to the user. Similarly, when the position of the fixture is changed from the second position to the first position, even if dust or the like from the installation surface is attached to the second edge that is disposed along the installation surface and at least a part of which is in contact with the installation surface before the change, the dust or the like can be prevented from adhering to the user.

In the fixture of the present invention, at least one of the first and second edges has a main body extending in the direction in which the edge extends and a protruding portion protruding from the main body in a direction intersecting the direction in which the edge extends, and when the edge is arranged along the installation surface, the protruding portion may come into contact with the installation surface and the main body may be arranged above the installation surface with a gap therebetween.

With this configuration, only the protruding portion of at least one of the first and second edges comes into contact with the installation surface, so that the portion to which dust and other particles adhere when the fixture is placed along the installation surface is mainly the protruding portion, and dust and other particles are less likely to adhere to the main body. This makes it possible to further prevent dust and other particles that were attached to the edge that was placed along the installation surface before the change from adhering to the user when the fixture's position is changed. The portion to which dust and other particles adhere (the protruding portion) can also be made clear to the user.

In the fixture of the present invention, the protrusion may be a separate member from the main body and may be fixed to the main body.

By configuring it in this way, there is no need to process the main body to provide the protrusion, and the main body and the edge having the protrusion can be manufactured easily and inexpensively. If the protrusion is a member that can be removed from the main body, it can be replaced if it becomes dirty or damaged due to contact with the installation surface.

In the fixture of the present invention, the first edge and the second edge may be connected.

With this configuration, the edge of the first edge and the second edge that is not positioned along the installation surface becomes an edge that extends upward from the installation surface. As a result, the edge that is not positioned along the installation surface is positioned in a position that is difficult for the user to contact. Therefore, when changing the position of the fixture from the first position to the second position, or from the second position to the first position, even if dust from the installation surface is attached to the edge that was positioned along the installation surface before the change, the dust can be prevented from adhering to the user.

In the fixture of the present invention, the functional part has a fixing member that can be fixed to at least one of the first fixing part and the second fixing part, the fixing part is formed in a rod shape extending in a predetermined direction, and the fixing member may have a recess that is fitted from a direction intersecting the direction in which the fixing part extends.

With this configuration, the functional part can be easily fixed to the support structure by fitting the fixing member of the functional part into the fixing part of the support structure.

In the fixture of the present invention, the support structure includes a pair of frame-shaped members spaced apart from each other in the width direction, each of which has the first edge and the second edge, a first connecting member installed between the middle parts of the first edge parts of the pair of frame-shaped members in the direction in which the first edge parts extend, and a second connecting member installed between the middle parts of the second edge parts of the pair of frame-shaped members in the direction in which the second edge parts extend, and the first connecting member may be provided with the second fixing part, and the second connecting member may be provided with the first fixing part.

With this configuration, the functional portion is fixed to the first connecting member and the second connecting member between the pair of frame-shaped members, so that the fixture can be easily carried by grasping the pair of frame-shaped members from both sides in the width direction.
By fixing the functional part to a position of a middle part of the first edge part in the extending direction of the first edge part or a position of a middle part of the second edge part in the extending direction of the second edge part, at least a part of the frame-shaped member protrudes beyond the functional part in at least one of the extending directions of the first edge part and the extending direction of the second edge part, thereby making it easy to grip the frame-shaped member without interfering with the functional part when gripping it.
When the furniture is a chair and the functional part is provided with a seat on which a user can sit, the parts of the frame-shaped members arranged on both sides of the width of the seat (functional part) that protrude further than the functional part in at least one of the directions in which the first edge portion extends and the second edge portion extends can be used as armrests.

In the fixture of the present invention, the support structure has a pair of rectangular frame members spaced apart from each other in the width direction, and the frame members have the first edge portion and the second edge portion, a third edge portion that is the same length as the first edge portion and extends in the same direction as the first edge portion and is arranged opposite to the first edge portion and is spaced apart in the direction in which the first edge portion and the second edge portion extend, and a fourth edge portion that is the same length as the second edge portion and extends in the same direction as the second edge portion and is arranged opposite to the second edge portion and is spaced apart in the direction in which the second edge portion and the first edge portion extend, and the third edge portion may be provided with the first fixing portion, and the fourth edge portion may be provided with the second fixing portion.

By configuring in this way, a pair of frame-shaped members can be provided with a first edge portion, a second edge portion, a first fixing portion, and a second fixing portion, making it possible to simplify the structure of the support structure.

In the fixture of the present invention, the direction in which the first edge portion extends and the direction in which the second edge portion extends may be perpendicular to each other, and the distance between the first edge portion and the third edge portion in the direction in which the second edge portion extends and the distance between the second edge portion and the fourth edge portion in the direction in which the first edge portion extends may be set to different values.

By configuring in this way, the height of the functional part in the first position and the height of the functional part in the second position can be set to different values with a simple configuration.

According to the present invention, in a fixture that can be installed in different positions relative to the installation surface, when the position is changed, dust and other particles that were attached to the part that was placed along the installation surface before the position was changed can be prevented from being attached to the user.

FIG. 2 is a perspective view of a fixture in a first position according to the first embodiment. FIG. 2 is a side view of the fixture in the first position of the first embodiment. 1 is a perspective view of a fixture in a second position of the first embodiment. FIG. A side view of the fixture in the second position of the first embodiment. This is an oblique view of the furniture in the first position of the first embodiment, with the seat member and backrest member omitted. This is an oblique view of the furniture in the second position of the first embodiment, with the seat member and backrest member omitted. FIG. 2 is a perspective view of a support structure in a first position according to the first embodiment. FIG. 4 is a perspective view of the support structure in a second position according to the first embodiment. FIG. 2 is a perspective view of the functional section of the first embodiment, as viewed obliquely from the front. FIG. 2 is a perspective view of the functional section of the first embodiment, seen obliquely from behind; FIG. 4 is an exploded perspective view of a first fixing member. 11 is a perspective view showing the fixing of a support structure in a first position and a functional portion; FIG. FIG. 4 is a perspective view of a second fixing member. 13 is a perspective view showing the fixing of the support structure and the functional portion in a second attitude. FIG. 13A to 13C are diagrams illustrating how to attach the functional part to the support structure in the second position. 11A and 11B are diagrams illustrating prevention of the functional part from coming off the support structure in the second posture. 13 is a perspective view of a fixture in a first position according to a second embodiment. FIG. A side view of the fixture in the first position of the second embodiment. An oblique view of the fixture in the second position of the second embodiment. A side view of the fixture in the second position of the second embodiment. FIG. 11 is a perspective view of a support structure in a first position according to a second embodiment. FIG. 11 is a perspective view of a support structure in a second position according to the second embodiment. FIG. 2 is a perspective view of the functional unit as seen obliquely from below.

First Embodiment
Hereinafter, a fixture according to an embodiment of the present invention will be described with reference to Figs.
As shown in Fig. 1, the furniture 1A according to the first embodiment is a chair that is placed on an installation surface 11 such as a floor. The furniture 1A can be installed on the installation surface 11 in two different positions. A user can sit on the furniture 1A in either position. One of the two different positions is referred to as a first position, and the other is referred to as a second position. Figs. 1 and 2 show the furniture 1A in the first position. Figs. 3 and 4 show the furniture 1A in the second position.
In the following description of the fixture 1A, the horizontal direction connecting the front and back of a seated user is referred to as the front-to-rear direction, the front of the seated user is referred to as the "front," and the back is referred to as the "rear." The horizontal direction perpendicular to the front-to-rear direction is referred to as the width direction.

As shown in Figures 1 to 4, the fixture 1A has a support structure 2 and a functional unit 3. The support structure 2 is placed in contact with the installation surface 11. The functional unit 3 has a function that allows a user to sit on it. The functional unit 3 has a seat 38 on which the user sits and a backrest 39 on which the seated user leans back.

5 and 6, the seat member 381 of the seat 38 and the backrest member 391 of the backrest 39 are omitted. As shown in Figs. 5 to 8, the support structure 2 has a pair of frame members 4, 4, a first connecting member 21, a second connecting member 22, and a third connecting member 23. In both the first and second positions, one of the pair of frame members 4, 4 is provided at one end of the support structure 2 in the width direction, and the other is provided at the other end of the support structure 2 in the width direction. The shapes of the pair of frame members 4, 4 are symmetrical to each other in the width direction. The first connecting member 21, the second connecting member 22, and the third connecting member 23 are each installed between the pair of frame members 4, 4. The first connecting member 21, the second connecting member 22, and the third connecting member 23 are rod-shaped and extend in the width direction in both the first and second positions. In this embodiment, the pair of frame members 4, 4, the first connecting member 21, the second connecting member 22, and the third connecting member 23 are formed by processing steel pipes.

The frame member 4 has a rectangular frame shape with an outer shape of a substantially trapezoid when viewed from the width direction. The portions along the four sides of the substantially trapezoid in the frame member 4 are respectively written as a first edge portion 41, a second edge portion 42, a third edge portion 43, and a fourth edge portion 44. The first edge portion 41, the second edge portion 42, the third edge portion 43, and the fourth edge portion 44 are arranged in this order to draw a trapezoid. The first edge portion 41 and the third edge portion 43 each extend in a straight line and are arranged in parallel with a gap. The first edge portion 41 is longer than the third edge portion 43. The fourth edge portion 44 extends in a straight line direction perpendicular to the first edge portion 41 and the third edge portion 43. The second edge portion 42 has its ends connected to each other so as to form an acute angle with the first edge portion 41 and an obtuse angle with the third edge portion 43. The second edge portion 42 is curved so that the center portion in the length direction protrudes to the outer periphery of the frame member 4.
In this embodiment, the first edge 41 and the second edge 42 intersect at an angle of approximately 80°.
Hereinafter, the direction in which each edge extends may be referred to as the length direction or longitudinal direction.

The two ends of the first connecting member 21 are joined to the middle of the length of the first edge 41 of each of the pair of frame members 4. The two ends of the second connecting member 22 are joined to the middle of the length of the second edge 42 of each of the pair of frame members 4. The two ends of the third connecting member 23 are joined to the middle of the length of the fourth edge 44 of each of the pair of frame members 4.

The first edge portion 41 has a rod-shaped main body portion 411 extending in the length direction of the first edge portion 41, and a protrusion portion 412 attached to the outer periphery of the main body portion 411 and protruding radially outward from the outer periphery of the main body portion 411. The main body portion 411 and the protrusion portion 412 are separate members, and the protrusion portion 412 is attached to the outer periphery of the main body portion 411. The protrusion portion 412 is attached near both ends in the length direction of the main body portion 411 of each of the pair of frame-shaped members 4.
The main body 411 is the steel pipe of the first edge portion 41 described above, or the like.
The protruding portion 412 may be, for example, a cylindrical member surrounding the main body portion 411. The protruding portion 412 is formed, for example, from rubber or the like and is elastically deformable, and has a slit on its outer periphery into which the main body portion 411 is fitted.

The third connecting member 23 has a rod-shaped main body 231 extending in the longitudinal direction of the third connecting member 23, and a protruding portion 232 attached to the outer periphery of the main body 231 and protruding radially outward from the outer periphery of the main body 231. The main body 231 and the protruding portion 232 are separate members, and the protruding portion 232 is attached to the outer periphery of the main body 231. Two protruding portions 232 are attached to the middle portion of the main body 231 in the longitudinal direction with a gap between them.
The main body portion 231 is, for example, a steel pipe of the third connecting material 23 described above.
The protruding portion 232 may be, for example, a cylindrical member surrounding the main body portion 231. The protruding portion 232 is formed, for example, from rubber or the like and is elastically deformable, and has a slit on its outer periphery into which the main body portion 231 is fitted.

As shown in FIG. 7, in the support structure 2 in the first position, the first edge 41 is disposed below the third edge 43, and the fourth edge 44 is disposed in front of the second edge 42. The first edge 41 and the third edge 43 extend in the front-rear direction. The second edge 42 extends in a direction gradually moving forward from the lower side toward the upper side. The fourth edge 44 extends in the up-down direction. The first edge 41 and the first connecting member 21 are disposed along the installation surface 11. The protruding portion 412 of the first edge 41 is in contact with the installation surface 11. The main body portion 411 of the first edge 41 and the first connecting member 21 are disposed above the installation surface 11 with a gap therebetween. The second connecting member 22 and the third connecting member 23 are disposed at the same height. The third connecting member 23 is disposed in front of the second connecting member 22.

As shown in FIG. 8, in the second posture, the second edge 42 is disposed below the fourth edge 44, and the first edge 41 is disposed in front of the third edge 43. The first edge 41 and the third edge 43 extend in an oblique direction from the lower side to the upper side and gradually toward the rear side. The second edge 42 extends in a substantially front-rear direction. The fourth edge 44 extends in a direction gradually toward the lower side from the front side to the rear side. The second edge 42 is in contact with the installation surface 11 in a part of the longitudinal range (a part between the front and rear ends in the longitudinal direction). Since the second edge 42 is curved, in the second posture, the part of the support structure 2 other than the part of the longitudinal range in contact with the installation surface 11 is located above the installation surface 11. As a result, the support structure 2 in the second posture can be rocked in the longitudinal direction on the installation surface 11.
The second connecting member 22 comes into contact with the installation surface 11 when the support structure 2 in the second posture is rocked. The second connecting member 22 may be provided so as to come into contact with the installation surface 11 even when the rocking of the support structure 2 in the second posture is stopped, or may be provided so as not to come into contact with the installation surface 11 either when rocking or when the rocking is stopped. The first connecting member 21 is disposed forward and below the third connecting member 23.

As shown in FIGS. 5 and 6, the functional unit 3 is detachable from the support structure 2 in the first position and from the support structure 2 in the second position.
The functional unit 3 is attached to the support structure 2 in the first position and the support structure 2 in the second position at different positions. As shown in Figs. 1 and 5, the functional unit 3 is fixed to the second connecting member 22 and the third connecting member 23 of the support structure 2 in the first position. As shown in Figs. 3 and 6, the functional unit 3 is fixed to the first connecting member and the third connecting member of the support structure 2 in the second position. The functional unit 3 attached to the support structure 2 in the first position is in a position where the seat 38 (see Fig. 1) is substantially horizontal. The functional unit 3 attached to the support structure 2 in the second position is in a position where the seat 38 (see Fig. 3) is located lower on the rear side than on the front side. In the following description of the functional unit 3, the functional unit 3 is attached to the support structure 2 in the first position.

As shown in Figures 5, 6 and 9, the functional part 3 has a pair of side members 31, 31, a first functional connecting member 32, a second functional connecting member 33, a third functional connecting member 34, a fourth functional connecting member 35, a first fixing member 36, a second fixing member 37, a seat member 381 (see Figures 1 and 3), and a backrest member 391 (see Figures 1 and 3).
One of the pair of side members 31, 31 is disposed at one end in the width direction of the functional part 3, and the other is disposed at the other end in the width direction of the functional part 3. The shapes of the pair of side members 31, 31 are symmetrical to each other in the width direction.

The first functional connecting member 32, the second functional connecting member 33, the third functional connecting member 34, and the fourth functional connecting member 35 are each a long member extending in the width direction. The first functional connecting member 32, the second functional connecting member 33, the third functional connecting member 34, and the fourth functional connecting member 35 are each installed between a pair of side members 31, 31. The first fixing member 36 is a member fixed to the first functional connecting member 32 and detachable from the support structure 2. The second fixing member 37 is a member fixed to the second functional connecting member 33 and detachable from the support structure 2. The first fixing member 36 and the second fixing member 37 are members for detachably fixing the functional part 3 to the support structure 2. The seat member 381 is a member forming the seat 38. The backrest member 391 is a member forming the backrest 39. The seat member 381 and the backrest member 391 may be separate members or may be provided integrally.

The pair of side members 31, 31, the second functional connecting member 33, the third functional connecting member 34, and the fourth functional connecting member 35 are formed by processing steel pipes. The pair of side members 31, 31, the third functional connecting member 34, and the fourth functional connecting member 35 are pipes with a circular cross-sectional shape. The second functional connecting member 33 is a pipe with an oval cross-sectional shape. The first functional connecting member 32 is plate-shaped. The first functional connecting member 32 is made of a steel plate or the like.

As shown in Figures 9 and 10, each of a pair of side members 31, 31 has a seat mounting portion 311 to which a seat member 381 is attached, a backrest mounting portion 312 to which a backrest member 391 is attached, and a connecting portion 313 that connects the seat mounting portion 311 and the backrest mounting portion 312.
The seat attachment portion 311 has a straight portion 311a that extends linearly in the front-rear direction, and an inclined portion 311b that extends gradually downward toward the front from the front end of the straight portion 311a. The inclined portion 311b is disposed at the front end portion of the seat attachment portion 311.
The connecting portion 313 has a lower connecting portion 313a extending gradually rearward from the rear end of the seat attachment portion 311 and an upper connecting portion 313b extending gradually forward from the upper end of the lower connecting portion 313a. The lower connecting portion 313a is in the shape of a circular arc that protrudes rearward when viewed in the width direction. The upper connecting portion 313b is in the shape of a straight line.
The backrest attachment portion 312 extends linearly from the upper end of the upper connecting portion 313b upward and gradually toward the rear.

The first functional connecting material 32 connects the front end portions of the straight portions 311a of the seat mounting portions 311 of the pair of side members 31, 31. The plate surface of the end portion 321 on one side in the width direction that is connected to one side member 31 of the first functional connecting material 32 is gradually inclined downward from one side to the other side in the width direction. The plate surface of the end portion 322 on the other side in the width direction that is connected to the other side member 31 of the first functional connecting material 32 is gradually inclined downward from the other side to one side in the width direction. The plate surface of the intermediate portion 323 between both ends 321, 322 of the first functional connecting material 32 is a horizontal plane.

The second functional connecting member 33 connects the connection portion 314 between the seat mounting portion 311 and the connecting portion 313 of each of the pair of side members 31, 31. The second functional connecting member 33 extends linearly in the width direction. As described above, the cross-sectional shape of the second functional connecting member 33 is elliptical. The flat portion of the peripheral surface of the second functional connecting member 33 is positioned in a vertical direction.

The third functional connecting member 34 connects the vertical middle portions of the upper connecting portions 313b of the pair of side members 31, 31. The third functional connecting member 34 extends linearly in the width direction.
The fourth functional connecting member 35 connects the connection portions 315 between the backrest attachment portions 312 and the connecting portions 313 of the pair of side members 31, 31. The fourth functional connecting member 35 extends in the width direction, and is curved so that a middle portion 351 in the width direction protrudes rearward. Both ends 352 in the width direction of the fourth functional connecting member 35 are located above and forward of the third functional connecting member 34. The middle portion 351 in the width direction of the fourth functional connecting member 35 is located above and rearward of the third functional connecting member 34. The third functional connecting member 34 and the fourth functional connecting member 35 partially overlap each other in the up-down direction.

As shown in FIGS. 9 to 11 , the first fixing member 36 has an engaging portion 361 that is detachable from the support structure 2 , and a pair of fixing portions 362 , 362 that fix the engaging portion 361 to the first functional connecting member 32 .
The engaging portion 361 has a U-shape that opens to the rear. A recess 363 that opens to the rear is formed in the engaging portion 361. As shown in Figs. 5 and 12, when the support structure 2 is in the first position, the main body 231 of the third connecting material 23 is fitted into the recess 363. As shown in Fig. 6, when the support structure 2 is in the second position, the first connecting material 21 is fitted into the recess 363. When the first connecting material 21 or the third connecting material 23 is fitted into the recess 363, the engaging portion 361 (see Fig. 11) is fixed to the fitted first connecting material 21 or the third connecting material 23.

As shown in Figs. 9 to 11, one of the pair of fixing portions 362 is disposed on one side of the engaging portion 361 in the width direction, and the other is disposed on the other side of the engaging portion 361 in the width direction. As shown in Fig. 11, the fixing portion 362 has a main body fixing piece 364 fixed to the engaging portion 361, and a connecting material fixing piece 365 fixed to the first functional connecting material 32. The main body fixing piece 364 is fixed to the engaging portion 361 in the width direction. Recesses 361a into which the main body fixing piece 364 is fitted are formed on both sides of the engaging portion 361 in the width direction. The main body fixing piece 364 is fixed to the engaging portion 361 by being fitted into the recesses 361a of the engaging portion 361.

The connecting material fixing piece 365 protrudes outward in the width direction from the upper end of the main body fixing piece 364. The connecting material fixing piece 365 is fixed to the lower surface of the first functional connecting material 32 with a fastener such as a screw. The connecting material fixing piece 365 is fixed to the first functional connecting material 32, thereby fixing the first fixing member 36 to the first functional connecting material 32. In this embodiment, the two first fixing members 36 are attached to a middle portion 323 in the width direction (length direction) of the first functional connecting material 32 with a gap between them in the width direction.
The engaging portion 361 is formed of, for example, resin. The fixing portion 362 is formed of, for example, a steel plate. In this embodiment, the engaging portion 361 is configured to elastically deform when the first connecting member 21 or the third connecting member 23 is fitted into the recess 363.

A claw portion 363c is formed on each of an upper side surface 363a facing downward and a lower side surface 363b facing upward on the inner circumferential surface of the recess 363. The claw portion 363c formed on the upper side surface 363a of the recess 363 protrudes downward from the upper side surface 363a. The claw portion 363c formed on the lower side surface 363b of the recess 363 protrudes upward from the lower side surface 363b. The two upper and lower claw portions 363c are disposed at positions facing each other in the vertical direction. The claw portions 363c are configured to be elastically deformable in the vertical direction.
The first connecting member 21 and the third connecting member 23 are fitted in front of the two claw portions 363c in the recess 363 while elastically deforming the claw portions 363c upward. When the first connecting member 21 and the third connecting member 23 reach the innermost portion of the recess 363, the claw portions 363c elastically return downward and are positioned behind the first connecting member 21 and the third connecting member 23. When the first connecting member 21 and the third connecting member 23 are positioned in front of the two claw portions 363c in the recess 363, they are prevented from shifting rearward by the two claw portions 363c.

As shown in FIGS. 12 and 13 , the second fixing member 37 has an engaging portion 371 that is detachable from the support structure 2 , and a fixing portion 372 that fixes the engaging portion 371 to the second functional connecting member 33 .
The engaging portion 371 has a U-shape that opens downward. A recess 373 that opens downward is formed in the engaging portion 371. The second connecting member 22 of the support structure 2 in the first posture is fitted into the recess 373. The engaging portion 371 of the second fixing member 37 is not fixed to the support structure 2 in the second posture.

The fixing portion 372 is connected to the top of the engaging portion 371. The fixing portion 372 is flat, and is fixed to the lower surface of the second functional connecting material 33 by a fastener such as a screw. The fixing portion 372 is fixed to the second functional connecting material 33, whereby the second fixing member 37 is fixed to the second functional connecting material 33. In this embodiment, two second fixing members 37 are attached to a middle portion in the width direction (length direction) of the second functional connecting material 33 with a gap therebetween in the width direction.
The engaging portion 371 and the fixing portion 372 are formed of, for example, resin, etc. In this embodiment, the second connecting member 22 is fitted into the recess 373 while elastically deforming the engaging portion 371 so as to widen the recess 373, and is configured to be sandwiched by the restoring force of the elastic deformation of the engaging portion 371 when the second connecting member 22 reaches the innermost portion of the recess 373.

The seat member 381 is formed into a bag shape using, for example, an upholstery material, and is attached to the seat attachment portions 311 of the pair of side members 31. The seat member 381 may be made of, for example, a resin, wood, or metal plate material.
The backrest member 391 is formed into a bag shape using, for example, an upholstery material, and is attached to the backrest attachment portions 312 of the pair of side members 31. The backrest member 391 may be, for example, a resin, wood, or metal plate material.

5, the functional unit 3 is attached to the support structure 2 in the first position as follows: The functional unit 3 is disposed between a pair of frame-shaped members 4, and the seat attachment portion 311 of the side member 31 is disposed on the second connecting member 22 and the third connecting member 23 of the support structure 2. The first fixing member 36 of the functional unit 3 is fixed to the third connecting member 23, and the second fixing member 37 is fixed to the second connecting member 22. In the first position, the third edge portion 43 of the support structure 2 is disposed above the seat 38 and in front of the backrest 39, and is used as an armrest.
The second connecting member 22 and the third connecting member 23 of the support structure 2 correspond to the "first fixed portion" in the claims.

To attach the functional part 3 to the support structure 2 in the first position, first tilt the functional part 3 so that the rear side is positioned higher than the front side, place the first fixing member 36 on the front side of the functional part 3 in front of the third connecting member 23, and move the functional part 3 rearward to fit the third connecting member 23 into the recess 363 of the first fixing member 36. Next, rotate the functional part 3 around the first fixing member 36 so that the rear side moves downward, and fit the second connecting member 22 into the recess 373 of the second fixing member 37. In this way, the first fixing member 36 is fixed to the third connecting member 23, and the second fixing member 37 is fixed to the second connecting member 22, thereby fixing the functional part 3 to the support structure 2 in the first position.

As shown in FIG. 6, the functional part 3 is attached to the support structure 2 in the second position as follows. The functional part 3 is disposed between a pair of frame members 4, the vicinity of the front end of the seat attachment part 311 of the side member 31 is disposed on the first connecting member 21, and the fourth functional connecting member 35 is disposed on the third connecting member 23. The first fixing member 36 is fixed to the first connecting member 21, and the fourth functional connecting member 35 is placed on the third connecting member 23. The fourth functional connecting member 35 contacts the outer peripheral surface of the protruding part 232 of the third connecting member 23 and is separated from the outer peripheral surface of the main body part 231. The upper connecting part 313b of the side member 31 contacts the outer peripheral surface of the main body part 231 of the third connecting member 23 from the diagonally front lower side. In the second position, the front side (the side connected to the first edge part 41) of the fourth edge part 44 of the support structure 2 is disposed above the seat 38 and in front of the backrest 39, and is used as an armrest.
The first connecting member 21 and the third connecting member 23 of the support structure 2 correspond to the "second fixing portion" in the claims.

To attach the functional unit 3 to the support structure 2 in the second position, first, tilt the functional unit 3 so that the rear side is positioned higher than the front side, and place the first fixing member 36 on the front side of the functional unit 3 in front of the first connecting member 21. Then, move the functional unit 3 rearward to fit the first connecting member 21 into the recess 363 of the first fixing member 36. Next, rotate the functional unit 3 around the first fixing member 36 so that the rear side moves downward, and place the fourth functional connecting member 35 on the third connecting member 23.
As described above, the connecting portion 313 of the side member 31 has a lower connecting portion 313a that is arc-shaped when viewed in the width direction, and an upper connecting portion 313b that extends in an oblique direction from the rear side to the front side gradually from the lower side to the upper side. Therefore, as shown in Fig. 15, when the functional portion 3 is rotated as described above around the first fixing member 36, the connecting portion 313 and the third connecting member 23 do not interfere with each other. Or, even if the connecting portion 313 and the third connecting member 23 come into contact with each other, they can move while still in contact with each other, and the above rotation is not hindered.

16, the third connecting member 23 is sandwiched between the upper connecting portion 313b of the side member 31 and the fourth functional connecting member 35. As a result, when a force is applied that moves the rear side of the functional part 3 attached to the support structure 2 in the second position higher than the front side, the fourth functional connecting member 35 comes into contact with the third connecting member 23. Therefore, the functional part 3 does not move until a force is applied that allows the fourth functional connecting member 35 to overcome the third connecting member 23, and the functional part 3 is prevented from being inadvertently detached.
As shown in FIG. 6 , a third functional connecting material 34 is disposed below the third connecting material 23 with a gap therebetween.

Comparing fixture 1A in the first position with fixture 1A in the second position, the functional part 3 of fixture 1A in the first position is higher from the installation surface 11 than the functional part 3 of fixture 1A in the second position, and the seat 38 is positioned at a higher position. The seat 38 of fixture 1A in the second position is tilted further back than the seat 38 of fixture 1A in the first position. Fixture 1A in the second position rocks in the front-to-back direction, but fixture 1A in the first position does not rock.

Next, the action and effect of the fixture 1A according to the first embodiment described above will be explained.
In the fixture 1A according to the first embodiment, the height dimension from the installation surface 11 of the functional unit 3 fixed to the support structure 2 in the first position is greater than the height dimension from the installation surface 11 of the functional unit 3 fixed to the support structure 2 in the second position. This allows the height of the functional unit 3 to be changed by installing the fixture 1A in a different position relative to the installation surface 11.
In the fixture 1A according to the first embodiment, the first edge 41 and the second edge 42 of the support structure 2 extend in directions intersecting each other. As a result, when the first edge 41 is arranged along the installation surface 11 in the first posture, the second edge 42 extends in a direction intersecting the installation surface 11, and is not arranged to face upward along the upper edge of the support structure 2, and is arranged in a position where it is difficult for the user to contact. Also, when the second edge 42 is arranged along the installation surface 11 in the second posture, the first edge 41 extends in a direction intersecting the installation surface 11, and is not arranged to face upward along the upper edge of the support structure 2, and is arranged in a position where it is difficult for the user to contact. Therefore, when the posture of the fixture 1A is changed from the first posture to the second posture, even if dust or the like from the installation surface 11 is attached to the first edge 41 that was arranged along the installation surface 11 and at least a part of which was in contact with the installation surface 11 before the change, the dust or the like can be prevented from adhering to the user. Similarly, when the position of the fixture 1A is changed from the second position to the first position, even if dust and other particles from the installation surface 11 are attached to the second edge portion 42, which was arranged along the installation surface 11 and at least a portion of which was in contact with the installation surface 11 before the change, the dust and other particles can be prevented from adhering to the user.

In the fixture 1A according to the first embodiment, the first edge 41 has a main body 411 extending in the direction in which the first edge 41 extends, and a protruding portion 412 protruding from the main body 411 in a direction intersecting the extension direction of the first edge 41. When the fixture 1A is in the first position and the first edge 41 is grounded along the installation surface 11, the protruding portion 412 is grounded on the installation surface 11, and the main body 411 is disposed above the installation surface 11 with a gap therebetween.
With this configuration, only the protruding portion 412 of the first edge portion 41 comes into contact with the installation surface 11, so that when the fixture 1A is placed along the installation surface 11, the portion to which dust and the like adheres is mainly the protruding portion 412, and dust and the like is less likely to adhere to the main body portion 411. This makes it possible to further prevent dust and the like that was adhered to the first edge portion 41 that was placed along the installation surface 11 before the change from adhering to the user when the fixture 1A is changed from the first position to the second position. The portion to which dust and the like adheres (the protruding portion 412) can also be made clear to the user.

In the fixture 1A according to the first embodiment, the protrusion 412 of the first edge 41 is a separate member from the main body 411 and may be fixed to the main body 411.
With this configuration, it is not necessary to process the main body 411 in order to provide the protrusion 412 on the first edge 41, and the first edge 41 can be easily and inexpensively manufactured. If the protrusion 412 is a member that can be removed from the main body 411, the protrusion 412 can be replaced if it becomes dirty or damaged due to contact with the installation surface 11.

In the fixture 1A according to the first embodiment, the first edge 41 and the second edge 42 are connected.
With this configuration, the edge portions of the first edge portion 41 and the second edge portion 42 that are not disposed along the installation surface 11 become edges that extend upward from the installation surface 11. As a result, the edges that are not disposed along the installation surface 11 are disposed in positions that are difficult for users to contact. Therefore, when changing the posture of the fixture 1A from the first posture to the second posture, or from the second posture to the first posture, even if dust or the like from the installation surface 11 is attached to the edges that were disposed along the installation surface 11 before the change, the dust or the like can be prevented from adhering to the user.

In the fixture 1A according to the first embodiment, the functional section 3 has a first fixing member 36 that can be fixed to the rod-shaped first connecting member 21 and third connecting member 23 of the support structure 2. The first fixing member 36 has a recess 363 into which the first connecting member 21 and the third connecting member 23 are fitted from a direction intersecting the direction in which the first connecting member 21 and the third connecting member 23 extend. The functional section 3 has a second fixing member 37 that can be fixed to the rod-shaped second connecting member 22 of the support structure 2. The second fixing member 37 has a recess 373 into which the second connecting member 22 is fitted from a direction intersecting the direction in which the second connecting member 22 extends.
With this configuration, the functional part 3 can be easily fixed to the support structure 2 by fitting either the first fixing member 36 or the second fixing member 37 of the functional part 3 into either the second connecting member 22 or the third connecting member 23 of the support structure 2.
As described above, the second connecting member 22 and the third connecting member 23 correspond to the first fixing portion in the claims, and the first connecting member 21 corresponds to the second fixing portion in the claims.

In the fixture 1A of the first embodiment, the support structure 2 comprises a pair of frame-shaped members 4, 4 arranged with a gap between them in the width direction, each of which has a first edge 41 and a second edge 42, a first connecting member 21 arranged between the middle portions of the first edge portions 41 of each of the pair of frame-shaped members 4, 4 in the direction in which the first edge portions 41 extend, and a second connecting member 22 arranged between the middle portions of the second edge portions 42 of each of the pair of frame-shaped members 4, 4 in the direction in which the second edge portions 42 extend, and the functional part 3 is fixed to the first connecting member 21 in a second position (a second fixing portion is provided), and the functional part 3 is fixed to the second connecting member 22 in a first position (a first fixing portion is provided).
With this configuration, the functional part 3 is fixed to the first connecting member 21 and the second connecting member 22 between the pair of frame-shaped members 4, 4. Therefore, the fixture 1A can be easily carried by grasping the pair of frame-shaped members 4, 4 from both sides in the width direction.
By fixing the functional part 3 at a middle position of the first edge part 41 in the direction in which the first edge part 41 extends, or at a middle position of the second edge part 42 in the direction in which the second edge part 42 extends, at least a part of each of the pair of frame-shaped members 4, 4 protrudes in at least one of the directions in which the first edge part 41 extends and the second edge part 42 extends beyond the functional part 3. This makes it easy to grip the pair of frame-shaped members 4, 4 without interfering with the functional part 3 when gripping them.
In the case where the furniture 1A is a chair as in this embodiment, the portion of the frame-shaped member 4 arranged on both sides of the width of the seat 38 that protrudes further than the functional part 3 in at least one of the directions in which the first edge portion 41 extends and the second edge portion 42 extends can be used as an armrest.
As described above, in the present embodiment, in the first position, the third edge 43 of the support structure 2 is disposed above the seat 38 and in front of the backrest 39, and can be used as an armrest. In the second position, the front side (the side connected to the first edge 41) of the fourth edge 44 of the support structure 2 is disposed above the seat 38 and in front of the backrest 39, and can be used as an armrest.

Second Embodiment
Next, the second embodiment will be described based on the attached drawings. The same reference numerals will be used for the same or similar components and parts as those of the first embodiment described above, and the description will be omitted. The configurations that differ from the first embodiment will be described.
As shown in Fig. 17, the furniture 1B according to the second embodiment is a table to be installed on an installation surface 11 such as a floor surface. The furniture 1B has a support structure 2B and a functional unit 3B. The support structure 2B is grounded to the installation surface 11. The functional unit 3B has a top plate 61.
The fixture 1B can be installed on the installation surface 11 in two different positions. The tabletop of the fixture 1B can be used in either position. One of the two different positions is referred to as a first position, and the other is referred to as a second position. Figures 17 and 18 show the fixture 1B in the first position. Figures 19 and 20 show the fixture 1B in the second position.
The tabletop 61 is flat and has a rectangular surface. In the following description of the fixture 1B, the direction in which the long sides of the rectangular surface of the tabletop 61 extend is referred to as the width direction, and the direction in which the short sides extend is referred to as the front-rear direction.

As shown in Figures 21 and 22, the support structure 2B has a pair of frame members 5, 5, a first connecting member 24, a second connecting member 25, and a third connecting member 26. The pair of frame members 5, 5 are provided on both sides in the width direction. The shapes of the pair of frame members 5, 5 are symmetrical to each other in the width direction. The first connecting member 24, the second connecting member 25, and the third connecting member 26 are installed between the pair of frame members 5, 5. In this embodiment, the pair of frame members 4, 4, the first connecting member 24, the second connecting member 25, and the third connecting member 26 are formed by processing steel pipes.

The frame member 5 is a rectangular frame (rectangular frame) whose outer shape has one side longer than the other side, which is perpendicular to the frame member 5. The edges along the four sides of the rectangle among the outer edges of the frame member 5 are respectively referred to as a first edge 51, a second edge 52, a third edge 53, and a fourth edge 54. The first edge 51, the second edge 52, the third edge 53, and the fourth edge 54 are arranged in this order to draw a rectangle. The first edge 51 and the third edge 53 are arranged in parallel, and the second edge 52 and the fourth edge 54 are arranged in parallel. The first edge 51 and the third edge 53 are longer than the second edge 52 and the fourth edge 54.
In the second embodiment, the first edge portion 51 is perpendicular to the second edge portion 52 and the fourth edge portion 54. The third edge portion 53 is perpendicular to the second edge portion 52 and the fourth edge portion 54.
Hereinafter, the direction in which the edge portion extends may be referred to as the length direction.

The first edge portion 51 has a rod-shaped main body portion 511 extending in the length direction of the first edge portion 51, and a protrusion portion 512 attached to the outer periphery of the main body portion 511 and protruding radially outward from the outer periphery of the main body portion 511. The main body portion 511 and the protrusion portion 512 are separate members, and the protrusion portion 512 is attached to the outer periphery of the main body portion 511. The protrusion portion 512 is attached to the vicinity of both ends in the length direction of the main body portion 511 of each of the pair of frame-shaped members 4.
The main body portion 511 is, for example, the steel pipe of the first edge portion 51 described above.
The protrusion 512 is, for example, a bolt fastened to a nut welded to the main body 511 .

The second edge portion 52 has a rod-shaped main body portion 521 extending in the length direction of the second edge portion 52, and a protrusion portion 522 attached to the outer periphery of the main body portion 521 and protruding radially outward from the outer periphery of the main body portion 521. The main body portion 521 and the protrusion portion 522 are separate members, and the protrusion portion 522 is attached to the outer periphery of the main body portion 521. The protrusion portion 522 is attached near both ends in the length direction of the main body portion 521 of each of the pair of frame-shaped members 5, 5.
The main body portion 521 is, for example, the steel pipe of the second edge portion 52 described above.
The protrusion 522 is, for example, a bolt fastened to a nut welded to the main body 521 .

The first connecting member 24, the second connecting member 25, and the third connecting member 26 extend in the width direction in both the first and second positions. Both ends of the first connecting member 24 are joined to the middle portions in the length direction of the second edge portions 52 of each of the pair of frame-shaped members 5, 5. Both ends of the second connecting member 25 are joined to the middle portions in the length direction of the third edge portions 53 of each of the pair of frame-shaped members 5, 5. Both ends of the third connecting member 26 are joined to the middle portions in the length direction of the fourth edge portions 54 of each of the pair of frame-shaped members 5, 5.

In the first attitude, the support structure 2B has a first edge 51 and a third edge 53 extending in the front-rear direction, and a second edge 52 and a fourth edge 54 extending in the up-down direction. The first edge 51 is disposed along the installation surface 11. The second edge 42 is disposed at the front end of the support structure 2B. The third edge 53 is disposed at the upper end of the support structure 2B. The fourth edge 54 is disposed at the rear end of the support structure 2B.
The first connecting member 24 and the third connecting member 26 are disposed at the same height in the vertical middle part of the support structure 2B. The first connecting member 24 is disposed in front of the third connecting member 26. The second connecting member 25 is disposed at the same height as the third edge portion 53 in the front-rear middle part of the support structure 2B.

In the second attitude, the support structure 2B has a first edge 51 and a third edge 53 extending in the up-down direction, and a second edge 52 and a fourth edge 54 extending in the front-rear direction. The first edge 51 is disposed at the front end of the support structure 2B. The second edge 52 is disposed along the installation surface 11. The third edge 53 is disposed at the rear end of the support structure 2B. The fourth edge 54 is disposed at the upper end of the support structure 2B.
The first connecting member 24 is disposed along the installation surface 11. The second connecting member 25 is disposed in a vertical middle portion of the rear end portion of the support structure 2B. The third connecting member 26 is disposed in a front-rear middle portion of the upper end portion of the support structure 2B.

The functional unit 3B is detachable from the support structure 2 in both the first and second positions.
As shown in Figures 17, 19 and 23, the functional section 3B has a top plate 61, a fixing member 62 fixed to the top plate 61 and detachable from the support structure 2B, and a reinforcing member 63 fixed to the top plate 61.
The reinforcing member 63 is a long member extending in the width direction. In this embodiment, two reinforcing members 63 are joined to both the front and rear portions of the rear surface of the top plate 61.
The fixing member 62 is a member similar to the second fixing member 37 of the first embodiment. The fixing member 62 has a recess 621 similar to the recess 373 of the second fixing member 37. The fixing member 62 is fixed to four locations on both the front and rear parts of both ends in the width direction on the back surface of the top plate 61. The recess 621 of the fixing member 62 extends in the front-rear direction and opens downward. In this embodiment, a reinforcing member 63 is arranged between the fixing members 62 arranged at intervals in the width direction.

The functional unit 3B is attached at different positions to the support structure 2B in the first attitude and the support structure 2B in the second attitude. The functional unit 3B is attached to both the support structure 2B in the first attitude and the support structure 2B in the second attitude in the same attitude in which the top plate 61 is horizontal.
The functional part 3B is attached to the support structure 2B in the first position as follows. The functional part 3B is placed on the third edge parts 53 of the pair of frame-shaped members 5, 5 of the support structure 2B in the first position, and the third edge parts 53 of the pair of frame-shaped members 5, 5 are fitted into the recesses 621 of the four fixing members 62 to be fixed to the support structure 2B. The third edge parts 53 correspond to the first fixing part in the claims. The functional part 3B is fixed to the fourth edge parts 54 of the pair of frame-shaped members 5, 5 of the support structure 2B in the second position.

The functional part 3B is attached to the support structure 2B in the second position as follows. The functional part 3B is placed on the fourth edge portion 54 of each of the pair of frame-shaped members 5, 5 of the support structure 2B in the second position, and the fourth edge portion 54 of each of the pair of frame-shaped members 5, 5 is fitted into the recesses 621 of the four fixing members 62, and the functional part 3B is fixed to the support structure 2B. The fourth edge portion 54 corresponds to the second fixing portion in the claims.

When comparing the fixture 1B in the first position with the fixture 1B in the second position, the functional part 3B of the fixture 1B in the first position is lower in height from the installation surface 11 than the functional part 3B of the fixture 1B in the second position, and the top plate 61 is positioned at a lower position.

In the fixture 1B according to the second embodiment, the first edge 51 and the second edge 52 of the support structure 2B extend in directions that intersect with each other. This allows the fixture 1B according to the second embodiment to have the same effect as the fixture 1A according to the first embodiment.

In the fixture 1B according to the second embodiment, the first edge 51 has a main body 511 extending in the direction in which the first edge 51 extends and a protruding portion 512 protruding from the main body 511 in a direction intersecting the direction in which the first edge 51 extends. When the fixture 1B is in the first position and the first edge 51 is arranged along the installation surface 11, the protruding portion 512 comes into contact with the installation surface 11 and the main body 511 is arranged above the installation surface 11 with a gap therebetween. The second edge 52 has a main body 521 extending in the direction in which the second edge 52 extends and a protruding portion 522 protruding from the main body 521 in a direction intersecting the direction in which the second edge 52 extends. When the fixture 1B is in the second position and the second edge 52 is positioned along the installation surface 11, the protrusion 522 comes into contact with the installation surface 11 and the main body 521 is positioned above the installation surface 11 with a gap therebetween.
With this configuration, as in the first embodiment, when the posture of the fixture 1B is changed from the first posture to the second posture, it is possible to further prevent dust and the like that was attached to the first edge portion 51 that was arranged along the installation surface 11 before the change from adhering to the user. When the posture of the fixture 1B is changed from the second posture to the first posture, it is possible to further prevent dust and the like that was attached to the second edge portion 52 that was arranged along the installation surface 11 before the change from adhering to the user. It is also possible to clearly show the portion (protrusions 512, 522) where dust and the like are attached to the fixture 1B.

In the fixture 1B according to the second embodiment, the functional part 3 has a fixing member 62 that can be fixed to the rod-shaped third edge part 53 and fourth edge part 54 of the support structure 2B. The fixing member 62 has a recess 621 into which the third edge part 53 and the fourth edge part 54 are fitted from a direction intersecting the direction in which the third edge part 53 and the fourth edge part 54 extend.
With this configuration, the functional part 3B can be easily fixed to the support structure 2B by fitting the fixing member 62 of the functional part 3B into either the third edge portion 53 or the fourth edge portion 54 of the support structure 2B.
As described above, the third edge portion 53 corresponds to the first fixing portion in the claims, and the second edge portion 52 corresponds to the second fixing portion in the claims.

In the second embodiment of the fixture 1B, the support structure 2B has a pair of rectangular frame members 5, 5 spaced apart from each other in the width direction. The frame member 5 has a third edge 53 that is the same length as the first edge 51, extends in the same direction as the first edge 51, and is arranged opposite to the first edge 51 and the second edge 52 at a distance in the direction in which the first edge 51 and the second edge 52 extend, and a fourth edge 54 that is the same length as the second edge 52, extends in the same direction as the second edge 52, and is arranged opposite to the second edge 52 and the first edge 51 at a distance in the direction in which the second edge 52 and the first edge 51 extend. The third edge 53 is fixed to the functional part 3B in the first position (a first fixing part is provided), and the fourth edge 54 is fixed to the functional part 3B in the second position (a second fixing part is provided).

By configuring in this way, the pair of frame members 4, 5 can be provided with a first edge 51, a second edge 52, a third edge 53 (first fixing portion) for fixing the functional part 3B in the first position, and a fourth edge 54 (second fixing portion) for fixing the functional part 3B in the second position, so that the support structure 2B can be made to have a simple structure.

In the fixture 1B of the second embodiment, the direction in which the first edge 51 extends is perpendicular to the direction in which the second edge 52 extends, and the distance between the second edge 52 and the fourth edge 54 is set larger than the distance between the first edge 51 and the third edge 53.
By adopting such a configuration, the height of the functional portion 3B can be changed with a simple structure.

Although an embodiment of the fixture according to the present invention has been described above, the present invention is not limited to the above embodiment, and can be modified as appropriate without departing from the spirit of the present invention.
For example, the fixture 1A in the first embodiment described above is a chair and the functional part 3 is the seat 38 and the backrest 39, and 1B in the second embodiment is a table and the functional part 3B is the top plate 61, but it may also be fixture other than a chair or table, such as a storage shelf.
In the first embodiment, the first edge 41 and the second edge 42 intersect at an angle of about 80°, but may intersect at an angle of 90°. The first edge 41 and the second edge 42 may intersect at an angle of less than 180°. The furniture 1A may be a non-rocking chair.
In the second embodiment described above, the first edge portion 51 and the second edge portion 52 intersect at an angle of 90°, but it is sufficient that they intersect at an angle of less than 180°.

In the first embodiment described above, the functional unit 3 may be attached to the support structure 2 in the first position in a direction opposite to the direction described above. The first fixing member 36 near the front end of the functional unit 3 may be fixed to the second connecting member 22 of the support structure 2 in the first position, and the second fixing member 37 near the rear end of the functional unit 3 may be fixed to the third connecting member 23 of the support structure 2 in the first position.

In the above first embodiment, the functional part 3 is fixed to the first connecting material 21, the second connecting material 22, and the third connecting material 23 of the support structure 2, but the functional part 3 may also be fixed to the frame-shaped member 4 of the support structure 2.
In the above second embodiment, the functional part 3B is fixed to the third edge 53 and the fourth edge 54 of the frame-shaped member 5 of the support structure 2B, but it may also be fixed to the first connecting material 24, the second connecting material 25, the third connecting material 26, etc.
In the above embodiment, the functional parts 3, 3B are fixed to the support structures 2, 2B via the fixing members 36, 37, 62, but the form in which the functional parts 3, 3B are fixed to the support structures 2, 2B may be other than the above.
In the first embodiment described above, the fourth functional connecting material 35 of the functional part 3 is placed on and fixed to the third connecting material 23 of the support structure 2 in the second posture, but as described above, the form in which the functional part 3 is fixed to the support structure 2 may be other than the above.

In the first embodiment, the first edge 41 has a main body 411 extending in the direction in which the first edge 41 extends, and a protruding portion 412 protruding from the main body 411 in a direction intersecting the direction in which the first edge 41 extends. In the second embodiment, the first edge 51 has a main body 511 extending in the direction in which the first edge 51 extends, and a protruding portion 512 protruding from the main body 511 in a direction intersecting the direction in which the first edge 51 extends. The second edge 52 has a main body 521 extending in the direction in which the second edge 52 extends, and a protruding portion 522 protruding from the main body 521 in a direction intersecting the direction in which the second edge 52 extends.
In contrast, the first edge portions 41, 51 and the second edge portion 52 may be formed only by the main body portions 411, 511, 521, and may not be provided with the protrusions 412, 512, 522. In such a case, the main body portions 411, 511, 521 are in contact with the installation surface 11.
The second edge portion 42, the first connecting material 21, the second connecting material 22 of the first embodiment of the fixture 1A, and the second connecting material 25 of the fixture 1B of the second embodiment, which are arranged along the installation surface 11, may be configured to have a main body portion and a protrusion portion.
The main body portions 411, 511, 521 and the protruding portions 412, 512, 522 may not be separate members but may be integrally formed.
The materials forming the main body portions 411, 511, 521 and the protrusions 412, 512, 522 may be other than those mentioned above.

In the above embodiment, the first edge portion 41, 51 and the second edge portion 42, 52 are connected, but a member extending in another direction may be provided between the first edge portion 41, 51 and the second edge portion 42, 52, or the first edge portion 41, 51 and the second edge portion 42, 52 may be arranged with a gap between them.

Reference Signs 1A, 1B Fixture 2, 2B Support structure 3, 3B Functional portion 4, 5 Frame-shaped member 11 Installation surface 21 First connecting member 22 Second connecting member 23 Third connecting member 36 First fixing member 37 Second fixing member 41, 51 First edge portion 42, 52 Second edge portion 53 Third edge portion 54 Fourth edge portion 62 Fixing member 363 Recess 373 Recess 411, 511, 521 Main body portion 412, 512, 522 Protruding portion 621 Recess

Claims (8)

A support structure that is installed on an installation surface;
A functional part that is detachably fixed to the support structure,
The support structure includes:
A first edge portion extending in a predetermined direction;
a second edge portion extending in a direction intersecting a direction in which the first edge portion extends;
A first fixing portion to which the functional portion can be detached;
a second fixing portion provided at a position different from the first fixing portion and to which the functional portion can be detached;
The electronic device can be installed in either a first position in which the first edge portion is disposed along the installation surface and at least a portion of the first edge portion is in contact with the installation surface, or a second position in which the second edge portion is disposed along the installation surface and at least a portion of the second edge portion is in contact with the installation surface,
the functional portion is fixed to the first fixed portion in the first attitude and is fixed to the second fixed portion in the second attitude,
The height dimension from the installation surface of the functional part fixed to the first fixed part in the first posture and the height dimension from the installation surface of the functional part fixed to the second fixed part in the second posture are set to different values. At least one of the first edge portion and the second edge portion is
A main body portion extending in a direction in which the edge portion extends;
a protruding portion protruding from the main body portion in a direction intersecting a direction in which the edge portion extends,
The fixture of claim 1 , wherein when the edge portion is positioned along the installation surface, the protrusion contacts the installation surface and the main body is positioned above the installation surface with a space therebetween. The fixture according to claim 2, wherein the protrusion is a separate member from the main body and is fixed to the main body. The fixture according to claim 1, wherein the first edge and the second edge are connected. the functional portion has a fixing member that can be fixed to at least one of the first fixing portion and the second fixing portion,
The fixing portion is formed in a rod shape extending in a predetermined direction,
The fixture according to claim 1 , wherein the fixing member has a recess into which the fixing portion is fitted in a direction intersecting the direction in which the fixing portion extends. The support structure includes:
A pair of frame-shaped members spaced apart from each other in the width direction, each of the frame-shaped members having the first edge portion and the second edge portion;
A first connecting member is provided between intermediate portions of the first edge portions of the pair of frame-shaped members in a direction in which the first edge portions extend;
a second connecting member disposed between intermediate portions of the second edge portions of the pair of frame-shaped members in a direction in which the second edge portions extend,
The first connecting member is provided with the second fixing portion,
The fixture according to claim 1 , wherein the second connecting member is provided with the first fixing portion. The support structure includes:
A pair of rectangular frame members spaced apart from each other in the width direction,
The frame-shaped member is
the first edge and the second edge;
a third edge portion having the same length as the first edge portion, extending in the same direction as the first edge portion, and disposed opposite to the first edge portion and the second edge portion at an interval in the extending direction of the first edge portion and the second edge portion;
a fourth edge portion having the same length as the second edge portion, extending in the same direction as the second edge portion, and disposed opposite the second edge portion and spaced apart in the extending direction of the first edge portion;
The third edge portion is provided with the first fixing portion,
The fixture according to claim 1 , wherein the second fixing portion is provided on the fourth edge portion. a direction in which the first edge portion extends and a direction in which the second edge portion extends are perpendicular to each other;
The fixture described in claim 7, wherein the distance between the first edge portion and the third edge portion in the direction in which the second edge portion extends and the distance between the second edge portion and the fourth edge portion in the direction in which the first edge portion extends are set to different values.

Images