CN111491846A - Trolley, trolley body and operating tool for the trolley - Google Patents

Abstract

The posture of an operation lever part (31) and the position of an operation tool (30) are operated so that a connecting part (33) of a lifting part (32) is positioned below a connected part (15) of a cargo bed part (11), the connecting part (33) of the lifting part (32) is locked on the connected part (15) of the cargo bed part (11) through tilting operation of the operation lever part (31), tilting moment acting on the operation lever part (31) through operation acts as force for pushing the connected part (15) locked on the connecting part (33) upwards with a1 st wheel and a 2 nd wheel (35) as supporting points, and the 1 st wheel and the 2 nd wheel (35) move towards the position below the connected part (15), so that a supporting part (12) of the cargo bed part (11) is lifted from the ground surface (F L) to complete connection.

Description

Trolley, trolley body and operating tool for the trolley

technical field

The present invention relates to a trolley for moving a heavy object or the like, and for holding and storing the heavy object or the like.

Background technique

As a conventional trolley for transporting heavy objects, there is known a trolley in which a plurality of free casters are provided on the lower surface of the cargo bed and a handle (operating tool) is provided on one side of the cargo bed (for example, Patent Document 1). ).

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2015-107665

SUMMARY OF THE INVENTION

Invention to solve problem

For example, metal materials processed by machine tools and processed workpieces are heavy, and if they are frequently loaded to and unloaded from a trolley, the number of man-hours increases and the burden on the operator is also large.

Therefore, it is necessary to reduce the loading and unloading of articles to and from the trolley as much as possible. As one method, after loading the article on the trolley, a method of storing the article on the trolley as much as possible can be considered.

However, since the conventional trolley is easily moved when an external force is applied, it is necessary to provide a stopper or the like. In addition, since the conventional trolley has a handle for the operator to operate, there is also a problem that the handle becomes an obstacle when arranging a plurality of trolleys.

The present invention has been made in view of the above-mentioned problems, and one of the objects thereof is to provide a trolley suitable for storage and preservation of the load, and easy to organize, in addition to the movement of the load.

solution to the problem

The trolley according to the first aspect of the present invention includes a trolley body and an operation tool detachably coupled to the trolley body,

The main body of the trolley has:

a cargo bed portion, which supports the moving object;

a plurality of wheels provided on the lower surface side of the cargo bed portion; and

a support portion having a lower end portion in contact with the ground, the support portion supporting the cargo bed portion in cooperation with the plurality of wheels,

The operating tool has:

an operating lever; and

a lifting portion provided on the lower end side of the operating lever portion, the lifting portion being formed so as to be connectable to the cargo bed portion,

The lifting portion has first and second wheels rotatably provided on both sides of the operating lever portion,

When the operating lever portion is connected to the trolley main body,

A part of the lifting part is clamped to a part of the cargo bed part,

The tilting moment acting on the operating lever portion acts as a force pushing up the cargo bed portion upward with the first wheel and the second wheel as a fulcrum, and the first wheel and the second wheel face The side of the cargo bed portion moves, so that the support portion of the truck main body is lifted from the ground surface,

When the connection between the lifting portion and the truck body is completed, the plurality of wheels support the cargo bed portion in cooperation with the first wheel and the second wheel.

A trolley according to a second aspect of the present invention includes a trolley body and an operating tool detachably coupled to the trolley body,

The main body of the trolley has:

a cargo bed portion, which supports the moving object;

a plurality of wheels that support the cargo bed portion and are rotatable around a common axis and are spaced apart from each other in the direction of the common axis; and

a support portion having a lower end portion in contact with the ground, the support portion supporting the cargo bed portion in cooperation with the plurality of wheels,

The operating tool has:

an operating lever; and

a lifting portion provided on the lower end side of the operating lever portion,

The lifting part has:

a first wheel and a second wheel, which are rotatably provided on both sides of the operating lever portion around an axis extending in a direction substantially orthogonal to the longitudinal direction of the operating lever portion; and

a connecting portion capable of being connected to a connected portion provided on the cargo bed portion,

When the operating lever portion is connected to the trolley, the attitude of the operating lever portion and the position of the operating tool are operated so that the connecting portion of the lifting portion is positioned below the connected portion of the cargo bed portion ,

Next, by tilting the operation lever portion, the connecting portion of the lifting portion is locked to the connected portion of the cargo bed portion,

The tilting moment acting on the operating lever portion by the operation acts as a force pushing upward the connected portion to which the connecting portion is locked, with the first wheel and the second wheel as fulcrums, In addition, the first wheel and the second wheel move toward the lower position of the connected portion, so that the support portion is lifted from the ground.

When the connection between the connected portion and the connecting portion is completed, the plurality of wheels support the cargo bed portion in cooperation with the first wheel and the second wheel.

Preferably, it is possible to adopt a structure in which the connection part of the lifting part is rotatably connected to the connected part of the cargo bed part, and in a state where both are connected, the operation is performed by the operation The direction operation of the lever portion is obtained by operating the orientations of the first wheel and the second wheel as described above.

More preferably, it is possible to adopt a configuration in which the lifting portion further includes a restricting portion that engages with a part of the cargo bed portion in a state where the connected portion and the connecting portion are connected together. closed, thereby restricting further tilting of the operating lever portion.

In addition, it is also possible to have a structure in which the lifting portion further includes a support portion for maintaining the operating lever portion in a state where the operating tool is detached from the dolly body. In this state, the support portion supports the operation lever portion in cooperation with the first wheel and the second wheel.

The operating tool of the present invention is used by the trolley having the above-mentioned structure.

The trolley main body of the present invention is used for the trolley having the above-mentioned structure.

effect of invention

According to the present invention, since the trolley main body has the support portion that can be installed on the ground, it is possible to provide a trolley suitable for storage and storage of loads. In addition, since the trolley main body and the operating tool can be separated, the arranging of the trolley main body is also easy. Furthermore, according to the present invention, the possibility of collapse of the load due to an earthquake is also greatly reduced.

Description of drawings

FIG. 1A is a cross-sectional view of the dolly according to the embodiment of the present invention, and is a cross-sectional view taken along line 1A-1A of FIG. 1B .

FIG. 1B is a side view of the cart of FIG. 1A .

Fig. 2 is a perspective view of the main body of the dolly.

3 is an external perspective view of the operating tool.

FIG. 4 is a cross-sectional view showing a state before the carriage main body and the operating tool are coupled together.

5A is an enlarged view showing a state in which the engaged portion of the cargo bed portion and the connection portion of the lifting portion of the operating tool are separated.

5B is an enlarged view showing a state in which the connection portion of the lifting portion of the operating tool is moved below the engaged portion of the cargo bed portion.

5C is an enlarged view showing a state in which the connecting portion of the lifting portion is engaged with the engaged portion of the cargo bed portion.

5D is an enlarged view showing a state in which the support portion of the cargo bed portion is raised from the ground.

5E is an enlarged view showing a state in which the wheel of the auxiliary tool has moved below the engaged portion of the cargo bed portion.

5F is an enlarged view showing a state in which the connection between the engaged portion of the cargo bed portion and the connection portion of the lifting portion is completed and a load is applied to the wheel of the auxiliary tool.

6A is a plan view showing the relationship between the dolly body and the operating tool when the dolly is moved in the front-rear direction.

6B is a plan view showing the relationship between the carriage main body and the operating tool when the moving direction of the carriage is changed.

Detailed ways

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1A to 3 show the structure of a trolley according to an embodiment of the present invention. In addition, in the drawings, L1 and L2 represent the longitudinal direction of the truck 1 in a horizontal plane parallel to the floor FL, and M1 and M2 in the horizontal plane represent the longitudinal direction of the truck 1 in which the longitudinal directions L1 and L2 are located. crossed horizontally.

The trolley 1 includes a trolley body 10 and an operating tool 30 detachably coupled to the trolley body 10 .

As shown in FIG. 2 etc., the trolley main body 10 has a cargo bed portion 11 having a rectangular outer shape, and two wheels 13A, 13B provided on the lower surface 11 b of the cargo bed portion 11 . The end on the L1 side in the longitudinal direction; the two support parts 12A, 12B provided at the end on the L2 side in the longitudinal direction of the lower surface 11b of the cargo bed part 11 ; and the connected part 15 .

The cargo bed portion 11 is loaded with articles to be conveyed, and the cargo bed portion 11 may be a plate formed of a metal material or the like, or may be a structure in which frame members are combined. In addition to the plate material and the frame, a metal mesh basket can be used as the cargo bed portion, and a structure in which wheels (casters) are provided on the lower surface thereof can also be used. Not only heavy objects, but also large-capacity objects can be transported and held.

The wheels 13A are provided at the ends in the lateral direction M1 of the lower surface 11b of the cargo bed portion 11, and the wheels 13B are provided at the ends in the lateral direction M2 of the lower surface 11b of the cargo bed portion 11. The wheels 13A and 13B are rotatable about the axis K1. , the orientation of the wheels 13A, 13B is fixed.

The support portion 12A is formed of a steel material or the like, and is provided at the end portion of the lower surface 11b of the cargo bed portion 11 on the opposite side to the wheel 13A side, and is an end portion in the lateral direction M1. The support portion 112B is formed of a steel material or the like, and is provided in the The end portion of the lower surface 11b of the cargo bed portion 11 on the opposite side to the wheel 13B side is an end portion in the lateral direction M2. The lower end surfaces 12b of the support parts 12A and 12B are in contact with the floor surface FL. In a state where the support portions 12A, 12B are in contact with the ground FL, the two support portions 12A, 12B and the two wheels 13A, 13B cooperate to keep the cargo bed portion 11 substantially horizontal and support the load from the cargo bed portion 11 . Since the lower end surfaces 12b of the support portions 12A and 12B are in contact with the floor FL, the greater the weight of the object loaded on the cargo bed portion 11, the greater the frictional force between the lower end surface 12b and the floor FL, and the more difficult the trolley body 10 is. Move on the ground FL.

The connected portion 15 is provided at a substantially intermediate position between the two support portions 12A and 12B, is formed of a metal cylindrical member, has a through hole 15a, and has a ring-shaped lower end surface 15b and an operating tool 30 to be described later. The connection portion 33 is engaged. The connected portion 15 is fixed to the lower surface 11b of the cargo bed portion 11 by welding.

As shown in FIG. 3 , the operation tool 30 has an operation lever portion 31 extending linearly, and a lifting portion 32 provided on the lower end portion side of the operation lever portion 31 .

A handle portion 31 a to be grasped by an operator who operates the cart 1 is provided on an upper end portion of the operation lever portion 31 so as to extend horizontally in a direction orthogonal to the operation lever portion 31 .

The lifting portion 32 is provided at the lower end portion of the operation lever portion 31, and includes a connecting portion 33 formed at the lower end portion of the operation lever portion 31, and wheels 35A, 35B rotatably supported on the axle 37, The axle 37 extends from the connecting portion 33 in the direction of the axis T1 that is substantially orthogonal to the axis S1 of the operating lever portion 31 ; formed.

A columnar protruding portion 34 is provided on the upper end surface 33 a of the connecting portion 33 . The protruding portion 34 is formed so as to be insertable into the through hole 15 a of the cylindrical member constituting the connected portion 15 of the cart main body 10 .

Since the wheels 35A and 35B are rotatably provided, the operating lever 31 of the operating tool 30 cannot maintain the upright state unless it is supported. However, as shown in FIG. 4 and the like, the arm portion 36 is in contact with the floor FL to restrict the tilting of the operation lever 31 , so that the operation lever 31 can maintain the upright state in a slightly inclined state.

Next, the connection operation between the carriage main body 10 and the operating tool 30 will be described.

In order to connect the trolley main body 10 and the operation tool 30 together, first, as shown in FIG. The connecting portion 33 is located below the connected portion 15 of the cargo bed portion 10 .

Specifically, as shown in FIG. 5A , the operating tool 30 is brought close to the cargo bed portion 11 provided on the floor FL. At this time, the inclination of the operating lever 31 is adjusted so that the protruding portion 34 of the connecting portion 33 is positioned below the lower end surface 15 of the engaged portion 15 . In addition, as shown in FIG. 4 , the protruding portion 34 of the connecting portion 33 is arranged below the lower end surface 15 of the engaged portion 15 when the operating lever 31 is supported by the wheel 35 and the arm 36 .

Next, as shown in FIG. 5B , the operating tool 30 is brought close to the trolley body 10 , and the protruding portion 34 of the connecting portion 33 is operated so as to come directly below the through hole 15 a of the engaged portion 15 . Then, as shown in FIG. 5C , the operation lever 31 is tilted in the tilting direction A1. The tilting direction A1 is the opposite direction to the tilting direction of the operation lever 31 shown in FIGS. 4 and 5A . When the operating lever 31 is tilted in the tilting direction A1, the position of the protruding portion 34 of the connecting portion 33 moves upward, a part of the protruding portion 34 enters the through hole 15a of the engaged portion 15, and the protruding portion 34 abuts on the through hole 15a, and the upper end surface 33a of the connecting portion 33 is in contact with the lower end surface 15b of the engaged portion 15. That is, the connection portion 33 is engaged with the engaged portion 15 .

When the operating lever 31 is tilted in the tilting direction A1, as shown in FIG. 5D , the tilting moment acting on the operating lever portion 31 due to the operation by the operator acts as a force for connecting the connecting portion with the wheel 37 as a fulcrum. The force with which the lower end surface 15b of the connected portion 15 to which the upper end surface 33a of the 33 is locked is pushed upward. At the same time, the wheel 35 serving as the fulcrum moves in the direction B1 toward the lower position of the through hole 15a. By this "leverage action", the lower end surface 12b of the support part 12 of the trolley main body 10 is raised from the floor FL, and a slight gap is formed between the floor FL and the lower end surface 12b of the support part 12 .

When the operation lever 31 is further tilted in the tilting direction A1, as shown in FIG. 5E , the wheel 35 moves closer to the position below the through hole 15a, and the load on the cargo bed 11 supported by the wheel 35 increases. The moment acting on the operation lever 31 in the direction opposite to the tilting direction A1 also decreases sharply, and the operator hardly feels the reaction force from the operation lever 31 .

As shown in FIG. 5F , when the wheel 35 reaches the position below the through hole 15a, the lower end surface 15b of the connected portion 15 contacts the upper end surface 33a of the connecting portion 33 over the entire surface, and the wheel 35 and the wheel 13 cooperate to support the cargo bed part 11 load. Thereby, the moment in the direction opposite to the tilting direction A1 no longer acts on the operation lever 31 . At this time, the arm portion 26 is in contact with the bottom surface 11b of the cargo bed portion 11, and the further inclination of the operation lever 31 in the inclination direction A1 is restricted. As a result, the cart 1 is in the state shown in FIG. 1A . In this state, the connecting portion 33 is in a rotatable state with respect to the connected portion 15 . In addition, a slight gap is formed between the lower end surface 12b of the support portion 12 and the floor FL, and the cargo bed portion 11 is also slightly inclined, but this inclination is within a range that does not affect the loaded load.

In the trolley 1 in which the trolley main body 10 and the operation tool 30 are coupled to each other, as shown in FIG. 6A , the operating lever 31 can be maintained in the directions along the longitudinal directions L1 and L2 of the trolley main body 10 and pushed Or pull the operating tool to move the trolley 1 straight forward or backward.

When changing the moving direction of the dolly 1 , that is, when changing the moving direction of the dolly to the right or left, as shown in FIG. 6B , the operation lever 31 is bent in one direction with respect to the longitudinal directions L1 and L2 . Since the connecting portion 33 is rotatable relative to the connected portion 15, the moving direction can be easily changed.

When separating the trolley main body 10 and the operating tool 30, the operating tool 30 may be operated in the reverse procedure of FIG. 5A to FIG. 5F .

According to the present embodiment, it is more preferable to use a mesh basket as the pallet portion, especially regarding the scattering of goods.

The operating tool 30 may be prepared separately for the plurality of cart bodies 10 , but one operating tool 30 may be shared with the plurality of cart bodies 10 .

In the above-described embodiment, the case where the connected portion 15 is formed by the cylindrical member and the connecting portion 33 is formed by the cylindrical member is exemplified, but the present invention is not limited to this, and the connecting portion 33 may be formed by a cylindrical member. The side of the connected portion 15 is formed by a protruding member, and the structures of the connected portion and the connecting portion can be changed in various ways.

In the above-mentioned embodiment, the case where the support parts 12A and 12B are provided was exemplified, but the present invention is not limited to this, and the location, shape, and number of objects can be appropriately changed.

In the above-described embodiment, various forms of the form of the cargo bed have been illustrated, but the present invention is not limited to this, and can be configured according to all loads related to material conveyance in factories, such as round bar steel conveyance.

Description of reference numerals

1. Trolley; 10. Trolley main body; 11. Cargo platform; 12A, 12B, support part; 13, 13A, 13B, wheel; 15, engaged part; 15a, through hole; 15b, lower end surface; 30 30a, handle part; 31, operating lever part; 32, lifting part; 33, connecting part; 33a, upper end face; 34, protruding part; 35, 35A, 35B, wheel; 37, axle; K1, S1, T1, axis; FL, ground.

Claims (8)

1. A trolley, wherein, The trolley has a trolley body and an operation tool detachably connected to the trolley body, The main body of the trolley has: a cargo bed portion, which supports the moving object; a plurality of wheels provided on the lower surface side of the cargo bed portion; and a support portion having a lower end portion in contact with the ground, the support portion supporting the cargo bed portion in cooperation with the plurality of wheels, The operating tool has: an operating lever; and a lifting portion provided on the lower end side of the operating lever portion, the lifting portion being formed so as to be connectable to the cargo bed portion, The lifting portion has first and second wheels rotatably provided on both sides of the operating lever portion, When the operating lever portion is connected to the trolley main body, A part of the lifting part is clamped to a part of the cargo bed part, The tilting moment acting on the operating lever portion acts as a force pushing up the cargo bed portion upward with the first wheel and the second wheel as a fulcrum, and the first wheel and the second wheel face The side of the cargo bed portion moves, so that the support portion of the truck main body is lifted from the ground surface, When the connection between the lifting portion and the truck body is completed, the plurality of wheels support the cargo bed portion in cooperation with the first wheel and the second wheel. 2. A trolley, wherein, The trolley has a trolley body and an operation tool detachably connected to the trolley body, The main body of the trolley has: a cargo bed portion, which supports the moving object; a plurality of wheels that support the cargo bed portion and are rotatable around a common axis and are spaced apart from each other in the direction of the common axis; and a support portion having a lower end portion in contact with the ground, the support portion supporting the cargo bed portion in cooperation with the plurality of wheels, The operating tool has: an operating lever; and a lifting portion provided on the lower end side of the operating lever portion, The lifting part has: a first wheel and a second wheel, which are rotatably provided on both sides of the operating lever portion around an axis extending in a direction substantially orthogonal to the longitudinal direction of the operating lever portion; and a connecting portion capable of being connected to a connected portion provided on the cargo bed portion, When the operating lever portion is connected to the trolley main body, operating the posture of the operating lever portion and the position of the operating tool so that the connecting portion of the lifting portion is positioned below the connected portion of the cargo bed portion, Next, by tilting the operation lever portion, the connecting portion of the lifting portion is locked to the connected portion of the cargo bed portion, The tilting moment acting on the operating lever portion by the operation acts as a force pushing upward the connected portion to which the connecting portion is locked, using the first wheel and the second wheel as a fulcrum, In addition, the first wheel and the second wheel move toward the lower position of the connected portion, so that the support portion is lifted from the ground. When the connection between the connected portion and the connecting portion is completed, the plurality of wheels support the cargo bed portion in cooperation with the first wheel and the second wheel. 3. The trolley of claim 2, wherein: The connection part of the lifting part is rotatably connected to the connected part of the cargo bed part, and in a state where the two are connected together, the operating position is freely operated by the direction operation of the operating lever part. Describe the orientation of the first wheel and the second wheel. 4. The trolley according to claim 2 or 3, wherein, The lifting portion further includes a restricting portion that engages with a part of the cargo bed portion in a state where the connected portion and the connecting portion are connected to restrict further movement of the operating lever portion. 's tilt. 5. The trolley according to any one of claims 2 to 4, wherein The lifting portion further includes a support portion which is connected to the first support portion in order to maintain a state in which the operation lever portion is raised in a state in which the operation tool is detached from the trolley body. The wheel and the second wheel cooperatively support the operation lever portion. 6. The trolley of claim 5, wherein, The support portion is formed of a member common to the restriction portion. 7. An operating tool, wherein, This operating tool is an operating tool used for the trolley according to any one of claims 1 to 6 . 8. A trolley body, wherein, The dolly body is a dolly body used for the dolly according to any one of claims 1 to 6 .

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