JP3983773B2 - Door device and refrigerator provided with door device - Google Patents

Description

  The present invention relates to a door device that seals and opens an opening of a box and a refrigerator provided with the door device.

  In recent years, as refrigerators have become larger, there are provided refrigerators that employ a so-called double door system that opens and closes an opening of a storage room with two doors. The conventional refrigerator with double doors must be provided with a gasket that is located on the non-pivot side of the door in order to keep the interior airtight with gaskets provided on the back of both doors. The closing material which divides the opening part of a heat insulation box was attached.

  An example of a conventional door device is disclosed in Japanese Patent Application Laid-Open No. 1-208690.

  The conventional door device will be described below with reference to the drawings.

  FIG. 20 is a perspective view of a conventional refrigerator. FIG. 21 is a front view of a conventional refrigerator. FIG. 22 is a plan sectional view of an opening of a conventional refrigerator. FIG. 23 is a perspective view of a conventional refrigerator door.

  In FIG. 20 to FIG. 23, reference numeral 1 denotes a refrigerator, which is located forward from an outer box 2 made of steel plate and an inner box 3 formed of synthetic resin, and a foam heat insulating material (not shown) filled between the two boxes 2 and 3. An opened heat insulating box 4 is configured, and the opening 5 is formed by two double doors 7 and 8 pivotally supported by upper and lower hinges 6 on the left and right edges of the opening 5 of the heat insulating box 4. It can be opened and closed freely.

  Guide members 9 are provided opposite to each other on the top and bottom of the edge of the opening 5 of the heat insulating box in the portions located on the non-pivot side of the doors 7 and 8. A guide groove 10 is formed in the guide member 9. Doors 7 and 8 are door inner plates formed by abutting outer frames 15 and 16 comprising frame members 11 and 12 and door outer plates 13 and 14 engaged therewith, and inner flanges 17 and 18 of the frame members 11 and 12, respectively. 21 and 22, outer frames 15 and 16, and door inner plates 21 and 22, respectively, and a heat insulating material 23 filled with foam.

  A pair of left and right vertical walls 24, 25 are formed on the door inner plates 21, 22, respectively, and a gasket 28 with a built-in magnet is attached to the grooves 26, 27 at the ends of the frame members 11, 12. Close contact with the vertical walls 24 and 25 on the non-pivot side. The gasket 28 is magnetized on the front edge of the outer box 2 of the opening 5 of the heat insulating box 4 when the doors 7 and 8 are closed, and seals the interior 30.

  Further, a partition body 31 having a substantially rectangular cross section is attached to the outside of the vertical wall 24 inside the gasket 28 located on the non-pivot side of the back surface of the door 7. Reference numeral 32 denotes a hinge plate, which is fixed to the reinforcing plate 33 on the heat insulating material side by two screws on the outer surface of the vertical wall 24 with screws 34, and the partition body 31 is freely rotatable on a rotation shaft 35 of the hinge plate 32. It is supported by. The partition 31 has a length that extends vertically across the edge of the opening 5 and extends vertically with a dimension that is slightly shorter than the distance between the guide grooves 10 and 10 of the upper and lower guide members 9 and 9. A steel plate 36 is attached as a plane as shown in FIG.

  Further, protrusions 37 are formed on the upper and lower ends as protrusions in the vertical direction. The hinge plate 32 is inserted into the partition 31 through two notches 38 formed on the rear edge portion of the partition 31 on the door 7 side, and the rotation shaft 35 is positioned there. A spring member 39 made of a coil spring is inserted through one end, and one end is engaged with the hinge plate 32 and the other end is engaged with the claw 40 in the partition 31 separated from the rotating shaft 35, and the restoring force The partition 31 is always rotated clockwise as indicated by an arrow in FIG.

  About the conventional door apparatus comprised as mentioned above, the operation | movement is demonstrated below.

  First, the partition 31 is held in a state where the door 7 is in contact with the screw 34 along the outer surface of the vertical wall 24 of the door inner plate 21 by the restoring force of the spring member 39 with the restoring force of the spring member 39 as shown in FIG. Has been. Even if the user's hand accidentally hits the partition 31 and is rotated counterclockwise in FIG. 22 in this initial state, the spring member 39 can return to the initial state. Since this operation is performed irrespective of the rotation angle of the partition 31, the door 7 is closed while the partition 31 is rotated, and the protrusion 37 of the partition collides with the protrusion of the guide member 9 and is damaged. Can be prevented.

  Next, when the door 7 is closed, the projection 37 of the partition body 31 enters the guide groove 10 and slides along the curved surface in the guide groove 10. The center is rotated counterclockwise against the spring member 39, and the protrusion 37 enters the inner part of the guide groove 10. Conversely, when the door 7 is opened, the projection 37 slides along the curved surface in the guide groove 10 and is rotated clockwise by the restoring force of the spring member 39, and eventually returns to the initial state.

  Thus, it is necessary to rotate the partition 31 in accordance with the opening and closing of the door 7 to securely seal the gasket 28 and to provide a partition fixed to the opening 5 side between the doors 7 and 8. It is said that the frontage of the opening 5 can be used widely because there is no.

  Another conventional door device is disclosed in, for example, JP-A-57-73383.

  The conventional door device will be described below with reference to the drawings.

  FIG. 24 is a plan view showing an open state of a conventional refrigerator door. FIG. 25 is a plan view of an essential part of a conventional refrigerator.

  24 and 25, reference numeral 41 denotes a refrigerator main body, and reference numerals 42 and 43 denote double doors attached to the front opening of the refrigerator main body 41 on the left and right sides. Further, 44 and 45 are gaskets attached to the doors 42 and 43, respectively, and are in close contact with the front opening edge of the refrigerator main body 41, and the gaskets 44 and 45 are in close contact with each other between the facing sides of the doors 42 and 43. It is configured to keep the inside and outside seals.

  46 and 47 are hinges attached to the pivotal support side of the doors 42 and 43 at the side of the refrigerator main body 41, and a locking portion 49 that moves in the left-right direction together with the doors 42 and 43 with respect to the fixed protrusion 48. Is configured to engage when the door is closed.

  Reference numeral 50 denotes a first hinge pin fixed to the main body, and 51 denotes a second hinge pin that pivots on the door and can be displaced, and is connected to each other by a slider 52. A spring 53 is attached to the first hinge pin 50 and biases the door in the closing direction.

  In the configuration as described above, when the door 42 or 43 is to be opened (the door 42 will be described hereinafter), when the locking portion 49 gets over the top of the protrusion of the protrusion 48, the door 42 faces sideways (the door 42), the door 42 is displaced to the outside via the slider 52 with the first hinge pin 51 as a fulcrum, and the close contact state of the gaskets 44 and 45 is released to open the door.

  On the other hand, when the door 42 is to be closed, an outward force is once applied to the door 42 when the engaging portion 49 gets over the top of the protrusion of the protrusion 48, so that the door 42 is displaced outward and the gasket is moved. 44 and 45 approach each other with a gap between them, and when the engaging portion 49 gets over the top of the protrusion of the protrusion 48, the gaskets 44 and 45 are brought into close contact with each other, and the refrigerator main body 41 becomes the door 42, 43 is sealed.

When the doors 42 and 43 are displaced outward during opening and closing, the gaskets 44 and 45 can be surely sealed without competing on the rotation trajectory.
JP-A-1-208690 JP-A-57-73383

  However, in the above conventional configuration, the partition 31 is attached to the outside of the vertical wall 24 of the door 7, and the airtightness of the interior 30 is maintained by the gasket 29 when the doors 7 and 8 are closed. Since 31 rotates outside the vertical wall 24, a space for rotation must be provided in the doors 7 and 8. That is, the vertical walls 24 and 25 must be moved to the pivot side of the door. For this reason, the food storage space in the doors 7 and 8 is reduced, and there is a disadvantage that the refrigerator becomes inconvenient for the user in food storage.

  Further, when the door 7 is opened and closed, the partition 31 has the protrusion 37 that rotates by 90 degrees along the guide groove 10 of the guide member 9 and slides. Therefore, the friction coefficient between the protrusion 37 and the guide groove 10 increases. 7 has a disadvantage that the opening force of the door 7 becomes large and the door opening and closing becomes a refrigerator that is inconvenient for the user. Furthermore, even if the user thinks that the door has been closed, if the closing is incomplete due to the frictional force and the repulsive force of the spring member 39, the internal temperature rises and the food freshness is lowered. .

  SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems, and to provide a door device that secures a food storage space inside the door effectively, has a small opening force, and is easy to use.

  Further, in the other conventional configuration, there is no need to provide a separate partition plate for sealing between the doors 42 and 43, and the problem of infringing on the food storage space is solved. It is necessary to displace the entire doors 42 and 43 outward in order to secure the close contact state, which makes the mechanism of the hinges 46 and 47 complicated, and there is concern about durability and reliability, and it is expensive in terms of cost. . Further, since the user operates and displaces the entire doors 42 and 43, there is a drawback that the operation feeling is heavy and the usability is not good.

  Another object of the present invention is to provide a door device that does not use an inexpensive partition plate that is excellent in durability and reliability, and is intended to improve user operability.

The invention according to claim 1 of the present invention includes two doors arranged such that one side surface of the outer peripheral portion faces each other in the opening in the box of the box, and the inner edge of the box other than the one side surface facing the two doors A first gasket that is provided on the surface and is in close contact with the front edge of the opening of the box when the door is closed; and a pair of second gaskets that are disposed on opposite sides of the two doors and are in close contact with each other when the door is closed. The second gasket is also in contact with the first gasket in the vicinity of both end portions thereof, and the first gasket is located on the inner side of one side of the door to which the second gasket is attached. An extending portion that wraps around the edge surface, the extending portion and the second gasket abut , and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other. Yes, two With the seal between the door can be performed with a simple configuration with a gasket comrades without using the partitioning body, the door open to lower the open door force moving in the direction in which the movable type gasket releases the adhesion of the gasket comrades. In addition, when the door is closed, the gaskets move in a direction in which the gaskets are brought into close contact with each other, and reliable adhesion can be obtained with an appropriate positional relationship. In addition, the gasket does not rub along the rotation trajectory of the door, and the generation of sound can be suppressed .

  In the closed state, the first gasket and the second gasket are also abutted and sealed, and a hermetic seal is performed on the outside of the inside of the cabinet.

  Furthermore, since the contact surface is the longitudinal direction of both gaskets, the contact length can be increased, and the reliability of the seal is increased.

The invention according to claim 2 includes two doors of double doors pivotally supported on the left and right sides of the opening in the box of the box, and the inner edge of the box other than one side face of the two doors facing each other A first gasket that is provided on the surface and is in close contact with the front edge of the opening of the box when the door is closed; and a pair of second gaskets that are disposed on opposite sides of the two doors and are in close contact with each other when the door is closed. The second gasket is also in contact with the first gasket in the vicinity of both end portions thereof, and the first gasket is located on the inner side of one side of the door to which the second gasket is attached. An extending portion that wraps around the edge surface, the extending portion and the second gasket abut , and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other. Yes, double door With the seal between the door can be performed with a simple configuration with a gasket comrades without using the partitioning body, the door open to lower the open door force moving in the direction in which the movable type gasket releases the adhesion of the gasket comrades. In addition, when the door is closed, the gaskets move in a direction in which the gaskets are brought into close contact with each other, and reliable adhesion can be obtained with an appropriate positional relationship. In addition, the gasket does not rub along the rotation trajectory of the door, and the generation of sound can be suppressed .

  In the closed state, the first gasket and the second gasket are also abutted and sealed, and a hermetic seal is performed on the outside of the inside of the cabinet.

  Furthermore, since the contact surface is the longitudinal direction of both gaskets, the contact length can be increased, and the reliability of the seal is increased.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the second gasket is in contact with the side surface of the first gasket by a fin portion extending integrally from the gasket. The seal variation can be absorbed by the flexibility of the fin portion.

  The invention according to claim 4 includes the magnet according to any one of claims 1 to 3 further including magnets that attract each other in at least one of a plurality of pairs of air layers, Due to the magnet's attracting action, the gasket adheres when the door is closed, and the sealing performance with the outside is strengthened.

Invention of Claim 5 is a refrigerator provided with the door apparatus as described in any one of Claim 1 to 4 , Comprising: It is a simple structure by gaskets between two doors without using a partition. , Heat insulation sealed.

The invention according to claim 1 of the present invention includes two doors arranged such that one side surface of the outer peripheral portion faces each other in the opening in the box of the box, and the inner edge of the box other than the one side surface facing the two doors A first gasket that is provided on the surface and is in close contact with the front edge of the opening of the box when the door is closed; and a pair of second gaskets that are disposed on opposite sides of the two doors and are in close contact with each other when the door is closed. The second gasket is also in contact with the first gasket in the vicinity of both ends thereof, and the first gasket is an inner edge of one side of the door to which the second gasket is attached. Since the extending portion that wraps around the surface, the extending portion and the second gasket are in contact with each other, and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other. Between two doors A seal with effective utilization and cost reduction can be warehouse space to perform a simple configuration by gasket comrades without using the partition member is figure enhances the operability improved and seal reliability during door opening.

  Further, in the closed state, the gasket and the box and between the gaskets can be hermetically sealed.

  In addition, the contact length can be ensured, the reliability of the seal between the first and second gaskets can be improved, and condensation due to heat intrusion or cold air leakage can be prevented.

Further, the invention according to claim 2 is that the two doors of the double doors swingably pivoted on the left and right sides of the opening in the box of the box, and the box other than one side face of the two doors facing each other. A first gasket that is provided on the inner edge surface and is in close contact with the front edge of the opening of the box when the door is closed, and a pair of second gaskets that are disposed on opposite sides of the two doors and are in close contact with each other when the door is closed The second gasket is in contact with the first gasket in the vicinity of both end portions thereof, and the first gasket is provided on one side surface of the door to which the second gasket is attached. An extending portion that wraps around the inner edge surface of the warehouse, the extending portion and the second gasket are in contact with each other, and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other. So double door The seal between the door together with effective use and cost reduction can be warehouse space to perform a simple configuration by gasket comrades without using the partition member is diagram, the improvement and sealing reliability of the operability during door opening Enhanced .

  Further, in the closed state, the gasket and the box and between the gaskets can be hermetically sealed.

  In addition, the contact length can be ensured, the reliability of the seal between the first and second gaskets can be improved, and condensation due to heat intrusion or cold air leakage can be prevented.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the second gasket abuts against the side surface of the first gasket by a fin portion extending integrally from the gasket. Sealing variation can be absorbed by the flexibility of the part, and reliability can be improved.

  In the invention according to claim 4, since the magnet according to any one of claims 1 to 3 further includes magnets that adsorb at least one pair among a plurality of pairs of air layers, Adhesive action closes the gasket when the door is closed, strengthening the sealing performance with the outside, reducing power consumption due to a decrease in the amount of intrusion, and improving quality by preventing condensation on the gasket.

Invention of Claim 5 is a refrigerator provided with the door apparatus as described in any one of Claim 1 to 4 , Comprising: It is a simple structure by gaskets between two doors without using a partition. Since it is heat-insulated and sealed, the seal between the two doors can be performed with a simple structure by the gaskets without using a partition body, and effective use of the space in the warehouse and cost reduction can be achieved. In addition, the power consumption can be reduced by reducing the amount of intrusion heat, and the quality can be improved by preventing condensation on the gasket.

  Hereinafter, embodiments of a door device and a refrigerator including the door device according to the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is an external front view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a perspective view inside the refrigerator of the embodiment. FIG. 3 is a rear perspective view of the door device of the embodiment. 4 is a cross-sectional view taken along the line aa in FIG. 5 is a cross-sectional view taken along line AA in FIG. 6 is a cross-sectional view taken along line BB in FIG. 7 is a cross-sectional view taken along line AA of FIG. 1 when the door is operated. FIG. 8 is a plan view of a main part of the refrigerator according to the embodiment. FIG. 9 is an exploded perspective view of the door device. FIG. 10 is a perspective view of the gasket of the door device according to the embodiment. 11 is a cross-sectional view taken along the line CC of FIG. 12 is a cross-sectional view taken along the line DD of FIG. FIG. 13 is a view taken along the arrow E in FIG.

  In FIG. 1 to FIG. 13, 101 is a refrigerator main body, forwardly from a steel plate outer box 102, an inner box 103 made of resin, and a foam heat insulating material (not shown) filled between both boxes 102, 103. An opened heat insulating box 104 is formed, and a plurality of storage chambers 105 a, 105 b, and 105 c are formed from the upper part of the heat insulating box 104. In the present embodiment, the uppermost refrigerator compartment 105a is configured to be openable and closable by two double doors 107 and 108 pivotally supported by upper and lower hinges 106 at left and right edges.

  In addition, a guide portion 109 is provided at the upper portion of the edge of the opening 105 of the heat insulation box 104 at a portion of the heat insulation box 104 located on the non-pivot side of each of the doors 107 and 108. The guide portion 109 has two protrusions 110 having a circular tip at the same shape, and two are formed in the left-right direction of the refrigerator compartment 105a.

  Next, the doors 107 and 108 are provided with door outer plates 111 and 112, flanges 113 and recesses 114a and 115a which are attached to the side surfaces of the doors 107 and 108 on the non-pivot side and are substantially U-shaped on the outside of the cabinet. Between the door side plates 114 and 115, the door inner plates 116 and 117 formed in contact with the inner peripheral flanges of the door side plates 114 and 115, and between the door outer plates 111 and 112, the door side plates 114 and 115, and the door inner plates 116 and 117 And a foam heat insulating material 118 each filled with foam.

  Reference numerals 114b and 115b are flat portions formed integrally with the door side plates 114 and 115, respectively. Reference numerals 114c and 115c are guide ribs formed integrally with the door side plates 114 and 115 and extending into the first bank portions 116b and 117b. The guide ribs 114c and 115c may be provided continuously or partially in the vertical direction of the doors 107 and 108. Reference numerals 114d and 115d denote overhang portions formed on the opening edges of the recesses 114a and 115a on the outer side. Reference numerals 116a and 117a denote door storage portions formed on the inner side of the back surface of the doors 107 and 108 by the door inner plates 116 and 117, respectively. Reference numerals 116b and 117b denote first bank portions that define the door storage portions 116a and 117a.

  In FIG. 9, reference numeral 117 c denotes a first peripheral portion that forms a peripheral portion provided in the horizontal direction of the door inner plate 117 and a peripheral portion provided on the pivot side of the hinge 106 and provided in the vertical direction. . A second peripheral edge 117d is continuously formed which is trimmed obliquely upward at an angle θ of about 45 degrees from the first peripheral edge 117c on the non-pivot side.

  Grooves 119 and 120 are formed in the concave portions 114a and 115a of the door side plates 114 and 115, and the first inclined surfaces 121 and 122 and the first inclined surfaces 121 and 122 are formed at the same height as the protrusion 110 of the guide portion when the door is closed. The holding members 129 and 130 having the rotation shafts 127 and 128 of the latch portions 125 and 126 having the two inclined surfaces 123 and 124 are attached.

  The holding members 129 and 130 extend in the vertical dimension of the opening 115 and are supported rotatably in the recesses 114a and 115a of the door side plates 114 and 115 around the rotation shafts 127 and 128, respectively. Furthermore, the anti-rotation members 131 and 132 are fixed to serve as the bearings of the rotation shafts 127 and 128 for preventing the rotation shafts 127 and 128 from coming off from the door side plates 114 and 115. In the grooves 119 and 120 of the holding members 129 and 130, a first fin portion 133 a is provided at the front end on the outer side, and a second fin portion 133 b is provided on the front end on the inner side.

  Reference numeral 134 denotes a pair of movable second gaskets that behave in a direction in which the gaskets are separated from each other, and are attached to the grooves 119 and 120 of the holding member. The second gasket 134 includes magnets 134a magnetized with different polarities, and is attached to the holding members 129 and 130 so as to face each other with substantially the same length. Further, instead of providing the magnet 134a magnetized to a different polarity, a magnetized member such as an iron member (not shown) may be included in one of the second gaskets 134 and closely attached to the magnet.

  A fixed first gasket 135 is attached to the upper and lower sides of the rear surfaces of the doors 107 and 108 and the rear vertical side of the doors 107 and 108 on the pivot side. Reference numeral 134b denotes an air layer provided around the magnet 134a, and a plurality of air layers are provided continuously (three on each side in the present embodiment). A magnet 134a is included in the air layer 134b on the outermost side in the vertical direction. A plurality of magnets contained in the second gasket 134 may be arranged facing each other.

  Further, the contact surface 134c with which the second gaskets 134 are in close contact with each other when the door is closed on the surface of the second gasket 134 is formed in a flat shape. Here, a projecting piece 134d is integrally formed at the end of the contact surface 134c on the storage chamber side over the upper and lower sides of the second gasket 134.

  The upper and lower end surfaces of the movable gasket 134 are sealed by welding so as to hold the magnet 134a therein.

  Spring members 136 and 137 made of coil springs are inserted through the rotary shafts 127 and 128, respectively, and one end is in contact with the door side plates 114 and 115 and the other end is in contact with the holding members 129 and 130, respectively. Further, the first fin portion 133a of the second gasket 134 is in contact with the overhang portions 114d and 115d from the inside of the recesses 114a and 115a, thereby sealing between the outside of the chamber and the recesses 114a and 115a. The second fin portion 133b is in contact with the surfaces of the flat portions 114b and 115b of the door side plate to seal the refrigerator compartment 105a between the recesses 114a and 115a.

  Further, the distance between the rotation shafts 127 and 128 and the protrusion 110 provided in the refrigerator compartment 105a is made larger than the distance between the magnet 134a of the second gasket and the rotation shafts 127 and 128.

  Reference numeral 138 denotes a decorative member, which is attached and fixed to the door side plates 114 and 115 by a fixing tool 139. The decorative member 138 is provided between the protrusions 116b and 117b in the vertical direction of the doors 107 and 108, and a space between the protrusions 116b and 117b. It is formed to narrow the distance.

  Further, reference numeral 140 denotes a heater wire which is a heating body for preventing condensation, and as shown in FIG. 6, the heat conducting member extends in the length direction of the door side plate 114 near the door outer plate 111 on the heat insulating material 118 side of the door side plate. (Aluminum foil tape 140a in this embodiment) is affixed.

  10, the cross-sectional shapes of the upper gasket portion 135a, the vertical gasket portion 135b, and the lower gasket portion 135c of the first gasket 135 are the shapes shown in FIG. 11, and from one end of the upper gasket portion 135a and the lower gasket portion 135c. The cross-sectional shape of the extending portion 135d slightly extending in the vertical direction is the shape shown in FIG. Moreover, the end surface shape (shaded part) of the extension part 135d is a shape shown in FIG.

  In FIG. 11, reference numeral 141 denotes a magnetized magnet, which is inserted on all sides of the first gasket 135. There is an air layer 142 below the magnet 141 of the upper gasket portion 135, and an anchor portion 143 is formed. Reference numeral 143a denotes an engagement piece protruding outward. The end surface of the air layer 142 protrudes from the end surface of the magnet 141 and is curved so as to absorb the impact when the door is closed. The upper gasket 135a, the vertical gasket portion 135b, and the lower gasket portion 135c are formed of a soft member (in the case of the present embodiment, soft vinyl chloride).

  In FIG. 12, the end surface of the air layer 144 at the lower portion of the magnet 141 in the extending portion 135 d is formed on the same surface as the end surface of the magnet 141. Further, a first engagement piece 146 is formed in the vicinity of the tip of the anchor portion 145 engaged with a predetermined position of the door, and a second engagement side is provided between the base portion 147 and the first engagement piece 146. 148 is formed. The extended portion 135d is formed of a soft member in the same manner as the upper side gasket 135a, the vertical side gasket portion 135b, and the lower side gasket portion 135c, but the base portion 147 and the second engagement side 148 are hard members (in this embodiment). In some cases, it is molded with hard vinyl chloride).

  FIG. 13 shows an end face of the extending portion 135d, and the end face forms a welded surface 149 (hatched diagram).

  FIG. 4 is a view showing the relationship between the second gasket 134 and the first gasket 135 with the door 108 closed. In this state, the first gasket 135 extends on the second fin portion 133b located on the side surface of the air layer 134b located on the storage chamber side of the second gasket and the surface containing the magnet 141 of the first gasket. It is maintained in a pressed state over the length of the protruding portion 135d.

  The surface of the door 108 is provided with an operation panel 108a having a setting function for setting a set temperature of the refrigerator and a display function for displaying information on operating conditions and food.

  About the refrigerator provided with the door apparatus comprised as mentioned above, the operation | movement is demonstrated below.

  When the double doors 107 and 108 are both closed as shown in FIG. 5, the surfaces of the second gasket 134 are brought into close contact with each other by the restoring force of the spring members 137a and 137b to seal the refrigerator compartment 105a. Further, the first fin portion 133a of the second gasket comes into contact with the overhang portions 114d and 115d of the concave portion of the door side plate from the inside, and the second fin portion 133b comes into contact with the surfaces of the flat portions 114b and 115b. As a result, the air inside and outside the cabinet does not communicate with each other through the recesses 114a and 115a of the door side plate, and the outside and the refrigerator compartment 105a are sealed to prevent intrusion of outside air heat and leakage of cold air.

  Further, since the second gaskets 134 are attracted to each other by joining the magnets 134a having different polarities built in the second gasket 134, the sealing property of the refrigerator compartment 105a can be improved. The magnet 134a is provided with a plurality of air layers 134b continuously from the side of the refrigerating chamber 105a in the second gasket 134, so that the magnet 134a is not directly cooled by the cold air in the refrigerating chamber 105a, thus avoiding problems such as condensation. it can.

  In addition, when the door is closed as shown in FIG. 5, the air layer 134b on the storage chamber side tends to be easily separated due to the joining of the magnet 134a on the outside of the warehouse. The gap formed between the second gaskets 134 can be sealed by the piece 134d to prevent the cold air in the refrigerating chamber 105a from entering the gap and to prevent dew condensation around the second gasket 134. Can do.

  Next, as shown in FIG. 7, when the door 107 is opened, the holding member 129 eventually moves the inclined surface 123 of the latch portion 125 along the projection 110 of the guide portion. And turn. As a result, the close contact state of the second gaskets 134 is forcibly released, so that the surfaces of the second gaskets 134 are not rubbed against each other when the door is opened, and the durability of the gaskets is improved. In addition, the gasket surface is rubbed and static electricity is not generated and dirt is not attached. In addition, the generation of frictional noise due to rubbing is eliminated. Furthermore, the door opening force can be reduced, and the user-friendliness can be improved.

  Further, as shown in FIG. 8, the magnet 134a provided in the second gasket 134 is positioned on a line connecting the hinges 106 of both doors in the closed state, so that the magnet 134a is effectively effective in the closed state of the movable gasket 134. Sealing performance can be enhanced by pressing the contact portion.

  When the door 107 is further opened, the inclined surface 121 moves along the protrusion 110 of the guide portion 109 due to the restoring force of the spring member 137a, so that the holding member 129 is in the door closed state with the rotation shaft 127 as a fulcrum. Returns to the same state as. This prevents foreign matter from entering between the door side plate 111 and the holding member 129. The same can be said for the door closed state.

  Next, when the door 107 is closed, the inclined surface 121 and the inclined surface 123 perform an operation along the protruding portion 110 of the guide portion, so that the same effect as the state in which the door is opened can be obtained.

  Further, as shown in FIG. 6, the rotating shafts 127 and 128 are fixed by the disengagement preventing members 131 and 132 in both the closed state and the open state of the door. Thus, the holding members 129 and 130 are not detached from the door side plates 114 and 115 by the restoring force of the spring members 137a and 137b, and a stable and smooth rotation is obtained.

  Further, since the pivot shafts 127 and 128 are surrounded by the door side plates 114 and 115 and are disposed on the storage chamber 45a side in the doors 107 and 108, the second gasket 134 is forced to have a gasket contact surface in accordance with the door opening / closing operation. Therefore, it is possible to ensure the reliability of the gasket and to open and close the door without applying extra force.

  At this time, the thickness of the abutting surfaces of the gaskets can be made thicker than the thickness of the non-abutting surface to prevent the abutting surface from being damaged by sliding and to ensure the sealing performance.

  Note that the rotation mechanism such as the rotation shafts 127 and 128 of the movable second gasket, the holding members 129 and 130, and the disengagement prevention members 131 and 132 are housed in the recesses 114a and 115a of the door side plate, so the door. It fits within the thickness of 107, 108, and does not invade the effective space inside the cabinet or project outside the cabinet to get in the way.

  FIG. 9 shows an exploded view of the door 108. In the process of assembling the door 108, the upper cap 112a, the lower cap 112b, and the door side plate 115 are fixed to predetermined positions on the door outer plate 112, and the foam insulation 118 is injected into the outer plate 112, so that the door inner plate 117 is moved from above. Fit and fix with jigs. At this time, the protrusion 117b is engaged with a predetermined position by the guide rib 115c provided on the door side plate 115.

  Also, the door inner plate 117 to be vacuum formed differs from the conventional door inner plate, and the door side plate 115 is engaged with the door inner plate 117. At this time, it is necessary to trim the door inner plate 117 to a shape corresponding to the side shape of the door side plate 115. As described above, in order to join the door inner plate 117 to the door side plate 115, the first peripheral portion 117c and the second peripheral portion 117d have a continuous portion through a step. Therefore, when the door inner plate 117 is formed, the outer frame of the vacuum formed door inner plate 117 is trimmed in order. The step angle is set to 90 degrees, that is, the first peripheral portion 117c and the second peripheral portion 117d. Are connected at a right angle, the trimming portion of the door inner plate 117 after trimming causes burrs or a very complicated state. In order to ensure the quality state after molding, if the angle of this step is trimmed at 45 degrees or less, burrs are not generated as described above, and bonding can be performed with high accuracy.

  After that, the decorative member 138 is fixed to the molded door 108 by the locking member 139, and the gap between the protruding portions 56b and 57b when the doors 107 and 108 are closed can be narrowed. Accordingly, it is possible to reduce the cooling of the second gasket 134 by the cold air circulating between them, and it is possible to prevent condensation of the second gasket 134 and to reduce the heat absorption amount. At the same time, the decorative member 138 covers the door-side plates 114 and 115 from the surface, so that the appearance with a concavo-convex shape can be covered and the appearance can be improved.

  Further, as shown in FIG. 12, the side end surface of the air layer 144 is formed flush with the side end surface of the magnet 141, so that no gap is formed between the second gasket 134. As shown in FIG. 4, the second gasket 134 and the extended portion 135d of the first gasket are configured such that the second fin portion 133b, the magnet 141, and the side end surfaces of the air layer 144 are in pressure contact with each other. As a result, cold air does not leak from between the second gasket 134 and the extended portion 135d of the first gasket, and the inside of the refrigerator compartment 105a can be sealed.

  In addition, the flexible part such as the second fin part 133b corresponds to the place where the contact frequency is high when the door is closed and non-contact is repeated when the door is open. No damage or the like occurs, and the durability reliability of the gasket can be improved.

  Further, the base portion 147 and the second engagement piece 148 are formed of a hard member such as hard vinyl chloride, and the anchor portion 145 has a two-stage engagement of the first engagement piece 146 and the second engagement piece 148 up and down. Since the joining piece is formed, the anchor portion 145 inserted at a predetermined position of the door does not come off even when the dimension is short like the extending portion 135d. Further, since the first engagement side 146 is formed of a soft member, workability at the time of mounting and insertion is good.

  The upper side gasket part 135a, the vertical side gasket part 135b, the lower side gasket part 135c, and the extension part 135d are connected by connecting the end surfaces and inserting the magnet 141 therein. As shown in FIG. 13, the end surface of the extending portion 135d is sealed by a soft member (soft vinyl chloride in the case of this embodiment), so that the magnet 141 inserted therein is held and the air layer is sealed. it can.

  Further, as shown in FIG. 1 and FIG. 6, the heater wire 140 is disposed on the door 107, so that condensation that occurs in the second gasket 134 and condensation near the flange 113 can be prevented. The operation panel 108 a is provided on the door 108 with respect to the heater wire 140 of the door 107. As a result, the heater wire 140 by the AC power source and the lead wire (not shown) by the DC power source disposed on the operation panel 108a can be separated, and the malfunction of the operation panel 108a due to noise from AC to DC that is likely to occur between them. Obstacles can be eliminated.

  Thus, since it becomes a simple structure compared with the conventional seal structure, it can summarize at low cost. In addition, since a reliable tight seal structure can be realized, the amount of heat passing through the gasket can be reduced, power consumption can be reduced by reducing the amount of intrusion heat, and quality can be improved by preventing condensation around the gasket. In addition, the durability and reliability due to the friction and sliding of the gasket can be enhanced.

  And the partition body conventionally provided between the doors by the above structure and operation | movement can be abolished. Thereby, the frontage of the refrigerator compartment 105a can be widely used, and the food storage space in the refrigerator compartment 105a and the storage space of the door storage portions 116a and 117a on the back of the door are increased, so that the user can use and the storage can be improved. Further, since there is no partition, the gap between the doors is only the thickness of the pair of second gaskets 134, so that the amount of heat absorption can be reduced.

  In addition, since the distance between the rotation shafts 127 and 128 and the protrusion 110 provided in the refrigerating chamber 105a is larger than the distance between the magnet 134a of the second gasket and the rotation shafts 127 and 128, the rotation shaft 127 is increased. , 128 can be used as a fulcrum to open the doors 107, 108 with a light force. If this distance ratio is set to about twice, the lightness of opening and closing of doors and the stability of opening and closing are moderate in a refrigeration room that requires a large force for opening and closing because of heavy storage load and heavy weight as in this embodiment. It is possible to provide a door device that is well balanced and easy to operate.

  Further, it is not necessary to displace the entire door at the time of opening and closing in order to secure the close contact state of the second gasket 134. Therefore, the hinge mechanism becomes complicated, the durability reliability is lowered, and the cost is high. It wo n’t come on. In addition, the weight of the operation feeling and the feeling of anxiety caused by displacing the entire door during the user's operation are eliminated.

  Further, by providing this door device in the refrigerator compartment 105a which is the uppermost storage room, the feeling of spaciousness of the frequently used storage room which the user can look over can be improved and the usability can be further enhanced.

  Further, since the guide portion 109 for the latch portions 125 and 126 is provided on the upper surface in the refrigerator compartment 105a, it does not interfere with the taking in and out of articles into the refrigerator compartment 105a and does not affect the storage property.

  Further, when the above configuration and operation are provided only on one door, the number of components necessary for the second gasket 134 to rotate can be halved, so that the assembly can be improved and the material cost can be reduced. .

  Although the second gasket 134 is provided between the two double doors 107 and 108 in the present embodiment, the same effect can be obtained by providing the second gasket 134 between the two drawer doors, and the partition between the drawer doors. Can be abolished, and the effective dimension in the vertical direction of the storage container that goes in and out integrally with the drawer door can be expanded to increase the food storage space.

(Embodiment 2)
FIG. 14 is an external front view of the refrigerator according to the second embodiment of the present invention. FIG. 15 is a perspective view of the refrigerator of the same embodiment with the door removed. FIG. 16 is a rear perspective view of the door device of the embodiment. 17 is a cross-sectional view taken along the line CC of FIG. 18 is an enlarged view of a main part indicated by a dotted line in FIG. 19 is a cross-sectional view showing the opening / closing operation of FIG.

  14 to 18, reference numeral 301 denotes a refrigerator main body, which is opened forward from a steel box outer box 302, a resin inner box 303, and a foam heat insulating material (not shown) filled between the boxes 302 and 303. The heat insulating box 304 is configured, and there are a refrigerator compartment 305a, a vegetable compartment 305b, and a freezer compartment 305c from the upper stage. The doors 307 and 308 are openable and closable.

  The doors 307 and 308 are door side plates 311 and 312 and door inner plates 313 and 314 attached to the side surfaces of the door outer plates 309 and 310 and the doors 307 and 308, respectively, and the outer plates 309 and 310 and the side plates 311. 312 and the inner plates 313 and 314 are formed of a foam heat insulating material 118 filled with foam.

  The door side plates 311 and 312 are formed from the outer plates 309 and 310 to the inner plates 313 and 314 toward the non-pivot side of the doors 307 and 308, and have stepped portions 311a and 312b on the outdoor side. Reference numerals 315 and 316 denote door storage portions formed on the inner side of the back surface of the doors 307 and 308 by the inner plates 313 and 314.

  Reference numeral 317 denotes an opening front edge of the refrigerating chamber 305a, and 318 denotes a first gasket that is in close contact with the opening front edge 317. The second gasket 319 is made of a soft synthetic resin (in the case of the example, vinyl chloride) and is disposed on one side of the doors 307 and 308 facing each other, and is in close contact with each other when the door is closed.

  A plurality of air layers 319 a are provided in the second gasket 319. Reference numerals 320 and 321 denote base parts formed of a hard synthetic resin (vinyl chloride in the case of the embodiment), and are integrally formed with the second gasket 319 by extrusion molding. Reference numeral 319b denotes a magnet of the second gasket 319, which is enclosed in an air layer 319a closest to the outside of the box. The base 320 and the second gasket 319 have connection portions 320a and 321a that are connected by an air layer 319a containing the magnet 319b.

  The magnet 319b is housed in the second gasket 319 so that the order of the N pole and the S pole is different from each other. That is, when the second gasket 319 faces in the state of FIG. 17, the N pole and the S pole face each other. So that it is stored.

  Reference numerals 322 and 323 denote first fin portions of a soft synthetic resin (vinyl chloride in the embodiment) integrally formed with the base portions 320 and 321, and are in contact with the step portions 311a and 312a.

  Reference numerals 324 and 325 denote rotating shafts for rotating the base portions 320 and 321, and are provided in the stepped portions 311 a and 312 a through the shaft members 324 a and 325 a. The base portions 320 and 321 extend in the vertical direction through the opening of the refrigerating chamber 305a, and are rotatably supported in the step portions 311a and 312a around the rotation shafts 324 and 325.

  Handles 326 and 327 are formed of handle portions 326a and 327a and action portions 326b and 327b, and are formed in a substantially L-shaped cross section. Is formed. Further, the action portions 326b and 327b are in contact with second fin portions 328 and 329 formed of a soft synthetic resin (in the example, vinyl chloride) integrally formed with the base portions 320 and 321, respectively. The second fin portions 328 and 329 are provided on the side opposite to the first fin portions 322 and 323 through the base portions 320 and 321.

  Reference numerals 330 and 331 denote rotating shafts, through which spring members 332 and 333 made of coil springs are inserted, and one end is in contact with the door side plates 311 and 312 and the other end is in contact with the action portions 326b and 327b. Reference numerals 334 and 335 denote first decorative plates, which are provided between the door side plates 311 and 312 in a dimension extending up and down the inner plates 313 and 314. Reference numerals 336 and 337 denote second decorative plates that are arranged through the outer plates 309 and 310 at the front portions of the door side plates 311 and 312 embedded in the heat insulating material 118.

  In FIG. 18, reference numeral 310a denotes an upper cap fitted on the upper portion of the outer plate 310, and the upper end of the second gasket 319 is engaged and supported in the upper cap 310a. A support member 338 is disposed on the back surface of the second gasket 319 from the vicinity of the upper portion to the upper end portion, and is closely fixed to the second gasket 319. In the case of the embodiment, the support member 338 is formed of PP resin and fixed with an adhesive, but may be ABS resin or other resin material, and hard synthetic resin (for example, vinyl chloride) is used as the second gasket 319. It may be integrally formed on the back surface. It is even better if the portion where the first gasket 318 and the support member 338 overlap is tightly fixed.

  Further, although the door 308 is described in FIG. 18, the above structure is also formed on the door 307 side.

  The operation of the refrigerator configured as described above will be described below.

  When the doors 307 and 308 are both closed, the second gasket 319 is in close contact with each other and can seal the inside of the refrigerator compartment 305a. Further, the two-stage sealing structure of the first fin portions 322 and 323 and the second fin portions 328 and 329 seals the refrigerator compartment 305a even if cold air in the refrigerator compartment 305a enters the step portions 311a and 312a. Can do.

  Next, as shown in FIG. 19, when the door 307 is pulled by opening the handle 326a of the handle 326 and pulling it forward, it moves as indicated by an arrow about the rotation shaft 330, and the action portion 326b is moved to the second fin. The portion 328 is brought into pressure contact, the base 320 is rotated about the rotation shaft 324, the first fin portion 322 is pressed against the stepped portion 311a, and the second gasket 319 is pulled away from the sealed state.

  At this time, the second gasket 319 on the door 307 side is pulled by the connecting portion 320a and the magnet 319b is pulled away from the opposing magnet, so that the door opening operation can be performed in conjunction with the handle 326, so that the operability is good.

  Further, since the second gasket 319 is formed of a hard material at the base portion, the holding force is strong, and the shaft member 324a is inserted into the rotating shaft 324, so that the support strength of the second gasket 319 is increased and the second gasket 319 can be rotated smoothly. Can be moved. Since it is a hard material, it is easy to form the rotating shaft 324.

  Note that the end of the second gasket 319 where the working portion of the handle comes into contact is set at the opposite end where the rotation shaft 324 is provided. The second gasket 319 can be moved.

  When the user pulls the handle portion 326a further forward, the opposing polarities in the magnet 319b facing each other become the same polarity, so that the magnets 319b repel each other and move in the vertical range of the movable handle 326. The seal is released inside. When the door 307 is further pulled forward, the seal of the gasket 319 above the handle 326 is released from the door 308, and the door 307 can be opened.

  When the hand is released from the handle 326, the handle 326 returns to the original state by the restoring force of the spring member 332.

  Next, when the door 307 is closed, the magnets 319b repel each other because the same poles approach each other, so that the surfaces of the second gaskets 307 and 308 are not rubbed. And when it is further closed, the different polarities face each other, and the refrigerator compartment 305a can be sealed.

  In addition, when the door is closed, the support member 338 is provided, so that the air layer 319a of the second gasket 319 expands, for example, when the outside air temperature is high, and the second gaskets 307 and 308 are prevented from falling and the door is smoothly opened. Can be opened and closed.

  Further, by moving the handle 326 itself by the above operation, the contact state of the second gasket 319 can be directly released and the doors 307 and 308 can be opened, so that the user can easily perform the door operation.

External appearance front view of a refrigerator according to Embodiment 1 of the present invention Inside perspective view of refrigerator of same embodiment Rear perspective view of the door device of the embodiment Aa line sectional view of FIG. AA line sectional view of FIG. BB sectional view of FIG. AA line sectional view of FIG. 1 when the door of the door device of the embodiment is operated. The principal part top view of the refrigerator of the embodiment The exploded perspective view of the door device of the embodiment The perspective view of the gasket of the door device of the embodiment CC sectional view of FIG. DD sectional view of FIG. E section view of FIG. 10 External appearance front view of refrigerator according to Embodiment 2 of the present invention The perspective view of the state which removed the door of the refrigerator of the embodiment Rear perspective view of the door device of the embodiment CC sectional view of FIG. 16 is an enlarged view of a main part indicated by a broken line in FIG. Sectional drawing which shows the opening / closing operation | movement of FIG. Perspective view of a conventional refrigerator Front view of a conventional refrigerator Cross section of the main part of a conventional refrigerator A perspective view of a conventional refrigerator door device The top view which shows the open state of the door of the conventional refrigerator Main part plan view of a conventional refrigerator

Explanation of symbols

101, 301 Refrigerator body 104, 304 Heat insulation box 105a Refrigeration room 106 Hinge 107, 108, 307, 308 Door 108a Operation panel 110 Projection part 114, 115 Door side plate 114a, 115a Concave part 114c, 115c Guide rib 114d, 115d Overhang part 116 , 117 Door inner plate 116b, 117b Protruding part 117c First peripheral part 117d Second peripheral part 115, 116 Latch part 127, 128 Rotating shaft 129, 130 Holding member 133a, 322, 323 First fin part 133b, 328,329 Second fin portion 134,319 Second gasket 134a Magnet 134b Air layer 134d Protruding piece 135,318 First gasket 135d Extension portion 138 Cosmetic member 140 Heater wire (heating body)
145 Anchor portion 146 First engagement piece 148 Second engagement piece 149 Welding surface 311a, 312a Stepped portion 317 Opening portion front edge 319a Air layer 319b Magnet 320, 321 Base portion 324, 325 Rotating shaft 324a, 325a Shaft member 326, 327 Handle 326a, 327a Handle part 326b, 327b Action part 330, 331 Rotating shaft

Claims (5)

Two doors arranged with one side of the outer peripheral part facing each other in the opening in the box of the box, and the opening of the box when closed, provided on the inner edge of the box other than the one side facing the two doors A first gasket that is in close contact with the front edge; and a pair of second gaskets that are disposed on opposite side surfaces of the two doors and that are in close contact with each other when the door is closed. The first gasket is in contact with the first gasket in the vicinity, and the first gasket includes an extending portion that goes around an inner edge surface of one side of the door to which the second gasket is attached, A door device characterized in that a protruding gasket and the second gasket are in contact with each other, and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other . Two doors of double doors pivotally supported on the left and right sides of the opening in the box of the box, and the box provided on the inner edge of the box other than the one side facing the two doors when the door is closed A first gasket that is in close contact with the front edge of the opening, and a pair of second gaskets that are disposed on opposite sides of the two doors and that are in close contact with each other when the door is closed, The first gasket is also in contact with the first gasket in the vicinity of both ends thereof, and the first gasket includes an extending portion that wraps around the inside edge surface of one side of the door to which the second gasket is attached, A door device in which the extension portion and the second gasket are in contact with each other, and at least one of the second gaskets is a movable gasket that behaves in a direction in which the gaskets are separated from each other .   The door device according to claim 1 or 2, wherein the second gasket is in contact with a side surface of the first gasket by a fin portion extending integrally from the gasket.   The plurality of pairs of continuous air layers are provided opposite to each other in the second gasket, and at least one pair of the plurality of air layers includes a magnet that attracts each other. Item 4. The door device according to any one of Items 3 to 4. The refrigerator provided with the door apparatus as described in any one of Claims 1-4 .

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