storage

Abstract

To more surely suppress a seal defect of a door packing.SOLUTION: A door packing 20 comprises: a magnet holding part 21 in which a magnet 40 is held and which is adhered to opening edges 11B, 17A and 17B of a storage cabinet body 11 in a closed state of a door 15B; an abutting wall 22 which is abutted to a rear face 32A of a door main body part 30; an interposing wall 23 which is interposed between the abutting wall 22 and the magnet holding part 21; a first coupling wall 25 which is elastically deformed in accordance with a magnetic attraction force between the opening edges 11B, 17A and 17B and the magnet 40 and couples a first sidewall 21B of the magnet holding part 21 with the abutting wall 22; a second coupling wall 26 coupling a second sidewall 21C with the abutting wall 22; and a third coupling wall 27 coupling the first sidewall 21B with the interposing wall 23. The third coupling wall 27 includes a first expansion part 27C expanded behind a first connection part 27A, which is a connection portion with the magnet holding part 21, or in front of a second connection part 27B, which is a connection portion with the interposing wall 23, in a state where the magnetic attraction force does not act.SELECTED DRAWING: Figure 6

Description

Technical Field

[0005]

[0001] This technology relates to a storage cabinet.

Background Art

[0002] It is known that a heat-insulating door for opening and closing the opening of a storage cabinet body has a door packing that adheres closely to the opening edge, and an example thereof is described in Patent Document 1. The door packing described in Patent Document 1 includes a seal base that is press-fitted and attached to a swing door (heat-insulating door), a magnet portion that magnetically adheres to a seal wall (opening edge) of a main body case (storage cabinet body), and an outer elastic wall, a first inner elastic wall, and a second inner elastic wall provided between the seal base and the magnet portion.

[0003] When each elastic wall is in a state of stretching and deformation due to the magnetic adsorption action between the magnet portion and the opening edge, this door packing is characterized in that the amount of extension when the outer elastic wall is deformed to the extension limit is equal to the amount of extension when the first inner elastic wall is deformed to the extension limit. By equalizing the amounts of both extensions, it is possible to suppress a situation where the magnet portion of the heat-insulating door inclines with respect to the opening edge when the heat-insulating door approaches the opening edge, and it is said that the jumping performance of the magnet portion with respect to the opening edge can be improved.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, the storage container body, which is an insulated box, is generally manufactured by filling the inside with foamed insulation material. More specifically, the storage container body is filled with foamed polyurethane foam (foamed insulation material) by injecting a liquid foamed polyurethane solution between the inner box and the outer box that make up the storage container body and allowing it to foam. During this foaming process, the surface of the opening edge of the storage container body may become inclined due to the foaming pressure. In that case, if the amount of elongation of the outer elastic wall and the amount of elongation of the first inner elastic wall are equal, as in the door gasket described in Patent Document 1, a gap may occur between the opening edge with an inclined surface and the door gasket. As a result, a sealing failure occurs, cold air leaks out, and the cooling performance deteriorates.

[0006] This technology was developed based on the circumstances described above, and aims to more reliably suppress door gasket sealing failures. [Means for solving the problem]

[0007] The storage container relating to this technology comprises a storage container body which is an insulated box having a front opening, and a door that opens and closes the front opening, the door comprising a door body portion including an insulating material, and a door packing provided on the rear surface of the door body portion which seals the space between the door body portion and the opening edge of the front opening of the storage container body, the door packing comprising a magnet holding portion which holds a magnet and has a sealing wall that is in close contact with the opening edge when the door is closed, a contact wall which abuts against the rear surface of the door body portion, an intervening wall which is interposed between the contact wall and the magnet holding portion, and the opening edge and the magnet The magnet holder has a first connecting wall that elastically deforms in response to the magnetic attraction force between them and connects the first side wall of the magnet holder to the contact wall, a second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall of the magnet holder, which is opposite to the first side wall, to the contact wall, and a third connecting wall that elastically deforms in response to the magnetic attraction force and connects the first side wall to the intervening wall, wherein when the magnetic attraction force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion, which is the connection portion with the magnet holder, or forward from the second connection portion, which is the connection portion with the intervening wall.

[0008] By providing a third connecting wall in this manner, the first side wall of the magnet holder connected to the third connecting wall can be displaced more easily towards the rear (towards the storage unit body) than the second side wall of the magnet holder connected to the second connecting wall. If the opening edge has an inclined surface, the first side wall of the magnet holder can be positioned in the area where the distance between the magnet holder and the opening edge increases due to the inclined surface, making it easier for a gap to occur, thereby suppressing the gap. As a result, sealing defects can be more reliably suppressed, and situations where cold air leaks and a decrease in cooling performance can be prevented.

[0009] Furthermore, the range of motion in which the first side wall can be displaced in the front-rear direction in response to the magnetic attraction force may be larger than the range of motion in which the second side wall can be displaced in the front-rear direction in response to the magnetic attraction force. In this way, the range of motion of the first side wall can be increased.

[0010] Furthermore, when the magnetic attraction force is not acting, the second connecting wall has a second bulge that extends rearward from the third connection portion, which is the connection portion with the magnet holding portion, and the portion of the second connecting wall from the third connection portion to the second bulge may be inclined at 60 degrees with respect to the second side wall. In this way, the length of the second connecting wall can be increased in a limited space, and the range of motion of the sealing wall on the second side wall side can be increased.

[0011] Furthermore, the wall thickness of the first connecting wall, the second connecting wall, and the third connecting wall may be 0.4 mm or less. This increases the flexibility of the first connecting wall, the second connecting wall, and the third connecting wall, and increases the range of motion of the first side wall and the second side wall of the magnet holding portion.

[0012] Furthermore, the door body is provided with a frame-shaped rib that protrudes rearward from the rear surface and is inserted into the front opening when the door is closed, the door packing is arranged to surround the rib, and the first connecting wall may be close to the outer peripheral wall of the rib. In this way, the range of motion of the first connecting wall in the front-rear direction is maintained, while the movement of the first connecting wall in the width direction intersecting the front-rear direction can be restricted by the outer peripheral wall of the rib. The movement of the sealing wall of the magnet holding part connected to the first connecting wall in the width direction can be restricted, and positional misalignment between the sealing wall and the opening edge can be suppressed. As a result, the contact area between the sealing wall and the opening edge can be secured, and the situation in which the magnetic attractive force between the magnet and the opening edge deviates from the design value and results in a sealing failure can be suppressed.

[0013] Furthermore, the first connecting wall has a vent for allowing air to flow into the space between the first connecting wall and the third connecting wall, and the wall thickness of the fourth connection portion, which is the connection part of the first connecting wall with the abutment wall, may be smaller than the wall thickness of the abutment wall. Providing a vent fills the space between the first connecting wall and the third connecting wall with air, making it easier to maintain their shapes as designed. However, when the first connecting wall and the outer periphery wall of the rib are close together, there is a concern that this vent may become blocked. Therefore, by reducing the wall thickness of the connection portion (fourth connection portion) of the first connecting wall with the abutment wall, a gap can be formed near the vent, preventing the vent from becoming blocked.

[0014] The portion of the first connecting wall that is close to the outer peripheral wall has a shape that follows the outer peripheral wall, and the door packing may have a fin portion that protrudes from the first connecting wall and contacts the outer peripheral wall. By making the shape of the first connecting wall follow the outer peripheral wall of the rib, the first connecting wall can be easily brought close to the outer peripheral wall. On the other hand, when they are close together, dirt and other debris tend to accumulate in the gap between the first connecting wall and the outer peripheral wall. Therefore, by providing a fin portion, the entry of dirt into the gap can be suppressed.

[0015] Furthermore, the door packing has a plurality of support walls that connect the abutment wall and the intervening wall and support the intervening wall, and the abutment wall located between adjacent support walls may have a notch. Providing support walls allows for stable support of the intervening wall. In this case, providing a notch in the abutment wall can increase the range of motion of the second connecting wall in the front-rear direction.

[0016] Furthermore, the door packing has a plurality of support walls that connect the abutment wall and the intervening wall and support the intervening wall, and the intervening wall located between adjacent support walls may have a notch. Providing support walls allows the intervening wall to be stably supported. In this case, providing a notch in the intervening wall increases the range of motion of the second connecting wall in the front-rear direction. Moreover, compared to a configuration in which the notch is provided in the abutment wall, it is possible to suppress the entry of debris through the notch.

[0017] The door packing also includes a plurality of support walls that connect the abutment wall and the intervening wall and support the intervening wall, and mounting legs that protrude forward from the abutment wall and are attached to the packing mounting groove of the door body, wherein the fifth connection portion, which is the connection portion between the wall portion of the mounting leg and the abutment wall, may substantially coincide with the sixth connection portion, which is the connection portion between at least one of the support walls and the abutment wall. Providing mounting legs allows the door packing to be easily attached to the door body. In addition, by substantially coinciding the fifth connection portion and the sixth connection portion, the wall portion of the mounting leg is reinforced, and the mounting leg can be easily attached and detached.

[0018] Furthermore, the seventh connection portion, which is the connection between the support wall closest to the third connecting wall and the intervening wall, may be located closer to the second connecting wall than the sixth connection portion, which is the connection between the support wall closest to the third connecting wall and the abutting wall. This would increase the length of the third connecting wall and improve its flexibility.

[0019] Also, the support wall located closest to the third connecting wall may be provided closer to the second connecting wall than the wall portion of the mounting leg located closest to the third connecting wall. By doing so, the length of the third connecting wall can be increased, and the flexibility of the third connecting wall can be improved.

[0020] Also, the wall portion of the mounting leg is an inner wall that protrudes forward from the contact wall inside the mounting leg, and the fifth connection portion between the inner wall and the contact wall may substantially coincide with the sixth connection portion. By substantially matching the fifth connection portion between the inner wall and the contact wall with the sixth connection portion, the mounting leg can be reinforced, and the attachment and detachment of the mounting leg can be facilitated.

[0021] Also, the door packing may include a support wall that connects the front wall of the packing holding portion and the intervening wall and supports the intervening wall. The intervening wall can be stably supported by the support wall.

Advantages of the Invention

[0022] According to the present technology, seal failure of the door packing can be more reliably suppressed.

Brief Description of the Drawings

[0023] [Figure 1] Front view of the refrigerator according to Embodiment 1 [Figure 2] Rear perspective view of the door [Figure 3] Cross-sectional perspective view taken along line A-A in FIG. 1 [Figure 4] Cross-sectional view taken along line A-A in FIG. 1 [Figure 5] Perspective view of the door packing with the vicinity of the ventilation opening enlarged [Figure 6] Cross-sectional view showing the state where the door packing is not extended [Figure 7] Cross-sectional view showing the state where the magnet holding portion is in contact with the intervening wall [Figure 8] Cross-sectional view showing the state where the door packing is extended [Figure 9] Cross-sectional view showing the positional relationship between the door packing and the opening edge portion when the door is closed [Figure 10] Enlarged cross-sectional view of the area around the vent in the door gasket. [Figure 11] Cross-sectional view showing a door gasket according to Embodiment 2 [Figure 12] Cross-sectional view showing a door gasket according to Embodiment 3 [Figure 13] Cross-sectional view showing a door gasket according to Embodiment 4 [Figure 14] Cross-sectional view showing a door gasket according to Embodiment 5 [Figure 15] Cross-sectional view showing a door gasket according to Embodiment 6 [Figure 16] Figure 15 is a cross-sectional view showing the stretched state of the door gasket. [Figure 17] Cross-sectional view showing a door gasket according to Embodiment 7 [Figure 18] Cross-sectional view showing a door gasket according to another embodiment (1) [Figure 19] Cross-sectional view showing a door gasket according to another embodiment (2) [Figure 20] Figure 19 is a cross-sectional view showing the stretched state of the door gasket. [Modes for carrying out the invention]

[0024] <Embodiment 1> A refrigerator 10 (an example of a storage compartment) according to Embodiment 1 will be described with reference to Figures 1 to 10. The symbols F, B, L, R, U, and D shown in each figure indicate the front and rear of the refrigerator 10 in the front-to-back direction, the left and right in the width direction (left-to-right direction) when viewed from the front, and the top and bottom in the vertical direction (up and down direction), respectively.

[0025] As shown in Figure 1, the refrigerator 10 is a four-door refrigerator comprising a vertically elongated, roughly rectangular storage body 11, multiple (four in the figure as an example) insulated doors 15, and a machine room 12 located above the storage body 11. The storage body 11 is an insulated box with four front openings 11A, and its interior is a storage compartment 14 for storing food and other items. The storage body 11 has a structure in which foamed insulation material is filled into the internal space between the outer box and the inner box, which are made of metal (such as stainless steel plate). More specifically, the storage body 11 is filled with foamed polyurethane foam, which is a foamed insulation material, by injecting foamed polyurethane liquid into the internal space from an injection port 11D (see Figure 3) and allowing it to foam.

[0026] The front opening 11A is formed by dividing one opening in the storage unit body 11 vertically with a horizontally elongated first front frame 17A and horizontally with a vertically elongated second front frame 17B, thereby creating four openings. Therefore, the opening edges 11B, 17A, and 17B of the front opening 11A of the storage unit body 11 are composed of the front frame 11B of the storage unit body 11, the first front frame 17A, and the second front frame 17B. The front frame 11B is rectangular in shape so as to surround all four front openings 11A.

[0027] As shown in Figure 1, the machine room 12 is located above the main storage unit 11. The machine room 12 houses the cooling equipment that constitutes the cooling cycle. The cooling equipment consists of an evaporator, a circulation fan, and the like. When the cooling equipment is in operation, the air is cooled by the evaporator. The cooled air (cold air) is circulated and supplied into the storage room 14 by the circulation fan, thereby cooling the inside of the storage room 14.

[0028] As shown in Figure 1, the doors 15 are provided in pairs, one above the other, on the front of the storage unit body 11. The pair of doors 15 consists of two doors 15A and 15B that open outwards like double doors. Each door 15A and 15B is attached to the storage unit body 11 so that the front opening 11A can be opened and closed from the front. The left door 15A is attached to the storage unit body 11 by a hinge 16A on its left edge, and the right door 15B is attached to the storage unit body 11 by a hinge 16B on its right edge. As a result, the left door 15A is pivotally supported around a pivot axis along its left edge, and the right door 15B is pivotally supported around a pivot axis along its right edge.

[0029] The two doors 15A and 15B, which form a pair, have a symmetrical shape, but otherwise have the same configuration. The following explanation will mainly describe the configuration of the right-hand door 15B. Door 15B broadly consists of a door body 30, a door gasket 20, and a magnet 40, as shown in Figures 2 and 3.

[0030] The door body 30 occupies most of the door 15B and has a structure in which an insulating material made of foamed resin (such as foamed urethane foam) is filled in the internal space between the opposing exterior panel 31 (door panel) and interior panel 32 (door pack). The exterior panel 31 is made of metal such as stainless steel plate. The exterior panel 31 constitutes the front surface (outside the storage area) and the outer peripheral side surface of the door body 30. The interior panel 32 is made of synthetic resin, for example. The interior panel 32 constitutes most of the rear surface 32A (inside the storage area) of the door body 30.

[0031] As shown in Figures 2 to 4, a rectangular frame-shaped rib 32B is formed along the outer edge of the interior panel 32 (rear surface 32A of the door body 30). The rib 32B protrudes to the rear (inward) and is inserted into the front opening 11A when the door 15B is closed. The rib 32B is provided to prevent cold air from the inside of the storage compartment from leaking out through the gap between the rear surface 32A and the opening edges 11B, 17A, and 17B of the storage compartment body 11. The interior panel 32 also has a gasket mounting groove 32C into which the door gasket 20 is attached.

[0032] The door packing 20 is a sealing member made of flexible soft resin, and in a plan view, it has a rectangular frame shape that is slightly larger than the rib 32B of the door body 30, surrounding the rib 32B. The door packing 20 is assembled into a rectangular frame shape as a whole by attaching four elongated edges, as shown in Figure 5, to the packing mounting grooves 32C of the door body 30. The door packing 20 broadly consists of a packing body 20A and mounting legs 20B.

[0033] As shown in Figures 3 to 5, the mounting leg 20B is an arrowhead-shaped projection that protrudes forward from the packing body 20A (more specifically, the contact wall 22, which will be described later). When the mounting leg 20B is fitted into the packing mounting groove 32C of the interior panel 32 from the rear, the door packing 20 is attached to the door body 30. The mounting leg 20B is formed in a hollow shape to increase flexibility when fitted. The mounting leg 20B has two protruding walls 41A, 41B that protrude forward from the contact wall 22, and a tip wall 42 that connects the protruding walls 41A, 41B.

[0034] As shown in Figures 3 to 5, the packing body 20A occupies most of the door packing 20 and protrudes from the rear surface 32A when the mounting legs 20B are fitted into the packing mounting grooves 32C. When the door 15B is closed, the packing body 20A is in close contact with the opening edges 11B, 17A, and 17B of the storage body 11, sealing the space between the door 15B and the storage body 11. As shown in Figure 6, the packing body 20A has a magnet holding portion 21, a contact wall 22, an intervening wall 23, a support wall 24, a first connecting wall 25, a second connecting wall 26, a third connecting wall 27, a first fin portion 28, and a second fin portion 29.

[0035] As shown in Figures 3 to 6, the magnet holder 21 is a hollow, rectangular cylindrical section that holds a rectangular prism-shaped magnet 40 in its internal space. When the door 15B is closed, the magnet 40 is magnetically attracted to the opening edges 11B, 17A, and 17B of the storage unit body 11. Due to this magnetic attraction, the magnet holder 21 is attracted to the opening edges 11B, 17A, and 17B, which are made of metal. Magnets may also be placed on the opening edges 11B, 17A, and 17B to increase the magnetic attraction force.

[0036] As shown in Figure 6, the rectangular cylindrical magnet holder 21 has a sealing wall 21A that is in close contact with the opening edges 11B, 17A, and 17B, two side walls 21B and 21C that are connected to both sides of the sealing wall 21A, and a front wall 21D that faces the sealing wall 21A. The two side walls 21B and 21C face each other, with one being the first side wall 21B (left side wall in Figure 4) on the rib 32B side of the door body 30, and the other being the second side wall 21C (right side wall in Figure 4) on the outer peripheral edge 30A side of the door body 30.

[0037] As shown in Figures 4 and 6, the contact wall 22 is a wall that abuts against the rear surface 32A of the door body 30. The contact wall 22 is flat. A second fin portion 29 protrudes from the end of the contact wall 22 on the outer peripheral edge 30A side of the door body 30 (the right end in Figure 4). The second fin portion 29 is formed as a thin film so as to contact the rear surface 32A of the door body 30. The second fin portion 29 covers the connection portion between the exterior plate 31 and the interior plate 32 of the door body 30.

[0038] As shown in Figures 4 and 6, the intervening wall 23 is a wall portion interposed between the contact wall 22 and the front wall 21D of the magnet holding portion 21. The intervening wall 23 is a flat plate shape parallel to the contact wall 22 and the front wall 21D. The support wall 24 is a wall portion that connects the contact wall 22 and the intervening wall 23 and supports the intervening wall 23. The support wall 24 is a flat plate shape that extends in the front-rear direction to connect the contact wall 22 and the intervening wall 23.

[0039] In this embodiment, three support walls 24 are provided, and the three support walls are parallel to each other. The three support walls 24 are numbered 24A, 24B, and 24C in order of proximity to the third connecting wall 27, as shown in Figure 6. The two support walls 24A and 24B closer to the third connecting wall 27 extend on the extensions of the two protruding walls 41A and 41B of the mounting leg 20B. More specifically, the connection portion 22C (fifth connection portion) between the protruding walls 41A and 41B and the abutment wall 22 substantially coincides with the connection portion 22D (sixth connection portion) between the support walls 24A and 24B and the abutment wall 22. By substantially coinciding the fifth connection portion 22C and the sixth connection portion 22D, the protruding walls 41A and 41B of the mounting leg 20B are reinforced, and the mounting leg 20B can be attached and detached stably and easily.

[0040] The intervening wall 23 and the support wall 24 not only reinforce the mounting legs 20B as described above, but also serve as a base to support the magnet holder 21 when it is pressed from the rear, as shown in Figure 7. The magnet holder 21 is strongly pressed from the rear when the door body 30 is filled with foam insulation material during the manufacture of the door 15B, or when the mounting legs 20B are fitted into the packing mounting groove 32C. When pressed, the front wall 21D of the magnet holder 21 comes into contact with the intervening wall 23, and the magnet holder 21 is supported by the intervening wall 23 and the support wall 24.

[0041] As shown in Figures 4 and 6, the first connecting wall 25 has a substantially U-shaped cross-section, with one end 25A connected to the first side wall 21B and the other end 25B connected to the contact wall 22. More specifically, the first connecting wall 25 is a wall portion that connects the rear end of the first side wall 21B of the magnet holding portion 21 to the end of the contact wall 22 on the rib 32B side. The first connecting wall 25 is positioned close to the outer peripheral wall 32B1 of the rib 32B. Furthermore, the portion of the first connecting wall 25 that is close to the outer peripheral wall 32B1 has a shape that follows the outer peripheral wall 32B1. By providing the first connecting wall 25 in this way, the movement of the first connecting wall 25 in the width direction (left-right direction) is restricted, and the positional displacement in the width direction between the sealing wall 21A and the opening edge portions 11B, 17A, and 17B that are in close contact with it can be suppressed. As a result, the contact area of ​​the sealing wall 21A can be secured, and the situation in which the magnetic attraction force deviates from the design value and results in a sealing failure can be suppressed.

[0042] On the other hand, if the first connecting wall 25 is provided in this way, a narrow gap G1 will be created between the first connecting wall 25 and the outer peripheral wall 32B1, making it easy for dirt and other debris to accumulate in the gap G1. Therefore, in this embodiment, as shown in Figure 4, the gap is covered by the first fin portion 28 to prevent dirt and other debris from entering. The first fin portion 28 is formed as a thin film that protrudes from the first connecting wall 25 and contacts the outer peripheral wall 32B1 of the rib 32B.

[0043] As shown in Figures 4 and 6, the second connecting wall 26 has one end 26A connected to the second side wall 21C and the other end 26B connected to the contact wall 22. More specifically, the second connecting wall 26 is a wall that connects the front end of the second side wall 21C of the magnet holding part 21 to the outer peripheral edge end of the door body part 30 on the contact wall 22.

[0044] As shown in Figures 4 and 6, the third connecting wall 27 is slightly smaller than the first connecting wall 25 and is provided inside the first connecting wall 25 with a roughly U-shaped cross-section. One end 27A of the third connecting wall 27 is connected to the first side wall 21B, and the other end 27B is connected to the intervening wall 23. More specifically, the third connecting wall 27 is a wall that connects the front end of the first side wall 21B of the magnet holding portion 21 to the end of the contact wall 22 on the rib 32B side.

[0045] The three connecting walls 25, 26, and 27 described above elastically deform in response to the magnetic attraction force between the magnet 40 and the opening edges 11B, 17A, and 17B. As shown in Figure 8, the three connecting walls 25, 26, and 27 stretch due to the magnetic attraction force. This stretching of the three connecting walls 25, 26, and 27 allows the sealing wall 21A of the magnet holding part 21 to adhere tightly to the opening edges 11B, 17A, and 17B, thereby improving the sealing performance of the door packing 20. Hereafter, the performance related to the displacement (range of motion) of the magnet holding part 21 will be referred to as the "jumping performance." As the range of motion of the magnet holding part 21 increases, the jumping performance improves. The three connecting walls 25, 26, and 27 are preferably thin films with a wall thickness of 0.4 mm or less in order to improve flexibility and, consequently, increase the range of motion (jumping performance) of the magnet holding part 21.

[0046] As shown in Figure 6, the third connecting wall 27 has a first bulge 27C that bulges rearward from one end 27A (first connection part), which is the connection part with the magnet holder 21, when no magnetic attraction force is acting on it. Similarly, the second connecting wall 26 has a second bulge 26C that bulges rearward from one end 26A (third connection part), which is the connection part with the magnet holder 21, when in the same state. The portion of the second connecting wall 26 from the third connection part 26A to the second bulge 26C is inclined at an angle θ of approximately 60 degrees with respect to the second side wall 21C. By forming the first bulge 27C and the second bulge 26C in this way, the lengths of the third connecting wall 27 and the second connecting wall 26 can be increased in a limited space, and the range of motion (jumping performance) of the magnet holder 21 can be further increased.

[0047] Incidentally, as previously described, the storage container body 11 is manufactured by filling it with foamed polyurethane foam (foamed insulation material). For this reason, the surface of the opening edge 11B may be inclined due to the foaming pressure during the foaming process, as shown in Figures 4 and 8. When no magnetic attraction force is acting, the distance between the inclined surface 11B1 of the opening edge 11B and the sealing wall 21A of the magnet holding part 21 tends to be larger on the first side wall 21B side and smaller on the second side wall 21C side. Furthermore, even when the surface of the opening edge 11B is not inclined, the door 15B swings around a pivot axis along the right edge where the hinge 16B is provided, so as shown in Figure 9, when the door 15B is closed, the distance between the opening edge 11B and the sealing wall 21A becomes larger on the first side wall 21B side and smaller on the second side wall 21C side.

[0048] Therefore, in this embodiment, the other end 27B of the third connecting wall 27 is connected to the intervening wall 23 instead of the abutting wall 22, and a first bulge 27C is formed on the third connecting wall 27. As shown in Figure 6, the range of motion L21B on the first side wall 21B side of the sealing wall 21A is made larger than the range of motion L21C on the second side wall 21C side. In this way, the range of motion on the first side wall 21B side, which is far from the opening edge 11B and prone to gaps, is increased, making it easier to suppress such gaps. As a result, sealing defects of the door packing 20 can be suppressed, and situations in which cold air leaks occur and cooling performance deteriorates can be prevented.

[0049] Furthermore, as shown in Figures 5 and 10, the first connecting wall 25 and the third connecting wall 27 are formed with vents 25D and 27D, respectively, to allow air to flow through them. Vent 25D allows air to flow into the space S1 between the first connecting wall 25 and the third connecting wall 27 from outside the door packing 20. Vent 27D allows air to flow further from space S1 into space S2 inside the third connecting wall 27. As a result, the shape and flexibility of the packing body 20A can be maintained as designed.

[0050] As previously mentioned, when the first connecting wall 25 is positioned close to the outer peripheral wall 32B1 of the rib 32B, there is a concern that the ventilation opening 25D of the first connecting wall 25 may become blocked. Therefore, in this embodiment, as shown in Figure 10, the wall thickness T25B of the other end 25B (fourth connection part), which is the connection part of the first connecting wall 25 with the abutment wall 22, is made smaller than the wall thickness T22 of the abutment wall 22. This ensures a predetermined gap G1 near the ventilation opening 25D, thereby preventing the ventilation opening 25D from becoming blocked.

[0051] <Embodiment 2> The door packing 120 according to Embodiment 2 will be described with reference to Figure 11. The support wall 124 of the door packing 120 differs from that of Embodiment 1. A redundant explanation of the same configuration and effects as in Embodiment 1 will be omitted.

[0052] Of the support walls 124, the support wall 124A closest to the third connecting wall 27 is inclined rather than parallel to the other support walls 24B and 24C. The connection portion 23C (seventh connection portion) between support wall 124A and intervening wall 23 is located closer to the second connecting wall 26 than the sixth connection portion 22D, which is the connection portion between support wall 124A and abutment wall 22. In this way, the length of the third connecting wall 27 can be increased compared to Embodiment 1, and the flexibility of the third connecting wall 27 can be improved. As a result, the third connecting wall 27 becomes more easily displaced backward by magnetic attraction, and the range of motion on the first side wall 21B side of the seal wall 21A can be further increased.

[0053] <Embodiment 3> The door packing 220 according to Embodiment 3 will be described with reference to Figure 12. The door packing 220 differs from that of Embodiment 1 in its mounting legs 220B and support wall 224. A redundant explanation of the same configuration and effects as in Embodiments 1 and 2 will be omitted.

[0054] The mounting leg 220B has an internal wall 41C inside its hollow interior. The internal wall 41 is provided parallel to the protruding walls 41A and 41B and protrudes forward from the abutment wall 22. Of the support walls 224, the support wall 224A closest to the third connecting wall 27 extends on the extension of the internal wall 41C. The support wall 224A is provided closer to the second connecting wall 26 than the protruding wall 41A closest to the third connecting wall 27 among the wall portions of the mounting leg 220B. The support wall 224A is parallel to the other support walls 24B and 24C. The sixth connecting portion 22D, which is the connection part between the support wall 224A and the abutment wall 22, is approximately the same as the fifth connecting portion 22C, which is the connection part between the internal wall 41C and the abutment wall 22.

[0055] In this way, the length of the third connecting wall 27 can be increased compared to Embodiment 1, and the flexibility of the third connecting wall 27 can be improved. As a result, the third connecting wall 27 becomes more easily displaced backward by magnetic attraction, and the range of motion on the first side wall 21B side of the sealing wall 21A can be further increased. In addition, unlike the support wall 124A of Embodiment 2, the support wall 224A is not inclined and is parallel to the other support walls 24B and 24C. Even in this case, by providing an internal wall 41C in the mounting leg 220B, the sixth connection part 22D and the fifth connection part 22C can be made to coincide substantially. This reinforces the mounting leg 220B and allows for stable and easy attachment and detachment of the mounting leg 220B.

[0056] <Embodiment 4> The door packing 320 according to Embodiment 4 will be described with reference to Figure 13. The door packing 320 differs from Embodiment 1 in that a notch 322C is provided in the contact wall 322, and the number of support walls 324 is different. A redundant explanation of the same configuration and effects as in Embodiments 1 to 3 will be omitted.

[0057] In addition to the support walls 24A, 24B, and 24C similar to those in Embodiment 1, the support wall 324 has another support wall 24D formed between two of the support walls 24B and 24C. The abutment wall 322 also has a notch 322C between two adjacent support walls 24C and 24D. In this way, the intervening wall 23 facing the notch 322C becomes more easily bent backward, as shown by the dashed line. As a result, the other end 26B of the second connecting wall 26 that connects to the abutment wall 322 becomes more easily displaced backward by magnetic attraction, and the range of motion on the second side wall 21C side of the seal wall 21A can be further increased.

[0058] <Embodiment 5> The door packing 420 according to Embodiment 5 will be described with reference to Figure 14. The door packing 420 differs from Embodiment 4 in that a notch 423C is provided in the intervening wall 423. A redundant explanation of the same configuration and effects as in Embodiments 1 to 4 will be omitted.

[0059] The intervening wall 423 has a notch 423C between two adjacent support walls 24C and 24D. In this way, the abutment wall 22 facing the notch 423C becomes more easily bent backward, as shown by the dashed line. As a result, the other end 26B of the second connecting wall 26 that connects to the abutment wall 22 becomes more easily displaced by magnetic attraction, and the range of motion on the second side wall 21C side of the sealing wall 21A can be further increased. Furthermore, compared to the case where a notch 322C is formed in the abutment wall as in Embodiment 4, it is possible to suppress the intrusion of dirt and other debris from the outside through the notch 423C.

[0060] <Embodiment 6> The door packing 520 according to Embodiment 6 will be described with reference to Figures 15 and 16. The intervening wall 523 and the support wall 524 of the door packing 520 differ from those of Embodiment 5. A redundant explanation of the same configuration and effects as in Embodiments 1 to 5 will be omitted.

[0061] A portion of the intervening wall 523, and the support walls 524C and 524D, are provided on the front wall 21D of the magnet holding portion 21.

[0062] <Embodiment 7> The door packing 620 according to Embodiment 7 will be described with reference to Figure 17. The door packing 620 differs from Embodiment 1 in that the first bulging portion 627C of the third connecting wall 627 is different. Repeated explanations of the same configuration and effects as in Embodiments 1 to 6 will be omitted.

[0063] As shown in Figure 17, the third connecting wall 627 has a first bulge portion 627C that bulges forward from one end portion 27B (second connection portion), which is the connection portion with the intervening wall 23, when no magnetic attractive force is acting on it. By forming the first bulge portion 627C, the length of the third connecting wall 627 can be increased in a limited space, and the jumping performance of the magnet holding portion 21 can be improved. That is, the first bulge portion 627C may bulge forward as in this embodiment, rather than bulging backward as in the first bulge portion 27C according to Embodiment 1. Furthermore, both a first bulge portion 27C that bulges backward as in Embodiment 1 and a first bulge portion 627C that bulges forward as in this embodiment may be formed.

[0064] <Other Embodiments> This technology is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of this technology. Furthermore, each embodiment may be combined as appropriate.

[0065] (1) The shape of the third connecting wall 27, 627 is not limited to that shown in the figures, and may be meandering in shape including multiple curved sections, for example, as shown in Figure 18. Also, one end 27A of the third connecting wall 27 may be connected to a part of the seal wall 21A other than the front end of the first side wall 21B (such as the central part in the front-rear direction of the first side wall 21B, as shown in Figure 18). In this way, the length of the third connecting wall 27 can be easily increased, and the range of motion on the first side wall 21B side can be increased.

[0066] (2) The intervening wall 23 and the support wall 24 may be provided entirely on the front wall 21D of the magnet holding portion 21, rather than just a part of them, as in Embodiment 6 (see Figures 19 and 20). [Explanation of Symbols]

[0067] 10: Refrigerator (storage compartment), 11: Storage compartment body, 11A: Front opening, 11B: Front frame (opening edge), 11B1: Inclined surface, 15, 15A, 15B: Door, 17A, 17B: Front frame (opening edge), 20, 120, 220, 320, 420, 520, 620: Door gasket, 20A: Gasket body, 20B, 220B: Mounting legs, 21: Magnet holder, 21A: Seal wall, 21B: First side wall, 21C: Second side wall, 22, 322: Contact wall, 22C: Fifth connection part, 22D: Sixth connection part, 23, 423, 523: Intervening wall, 23C: 7th connection, 24, 24A, 24B, 24C, 24D, 124, 124A, 324, 524: Support wall, 25: 1st connection wall, 25B: 4th connection, 25D: Ventilation hole, 26: 2nd connection wall, 26A: 3rd connection, 26C: 2nd bulge Part, 27, 627: Third connecting wall, 27A: First connection part, 27B: Second connection part, 27C, 627C: First bulge part, 28: Fin part, 30: Door body part, 32A: Rear face, 32B: Rib, 32B1: Outer peripheral wall, 40: Magnet, 322C, 423C: Notch part

Claims

1. The storage unit body is an insulated box with a front opening, It comprises a door that opens and closes the aforementioned front opening, The aforementioned door is The door body including the insulation material, The door gasket is provided on the rear surface of the door body and seals the space between the door body and the opening edge of the front opening of the storage unit body. The aforementioned door gasket is A magnet holder having a sealing wall that holds the magnet and adheres to the opening edge when the door is closed, A contact wall that abuts against the rear surface of the door body, An intervening wall between the contact wall and the magnet holding portion, A first connecting wall that elastically deforms in response to the magnetic attraction force between the opening edge and the magnet, and connects the first side wall of the magnet holding portion and the contact wall, A second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall facing the first side wall of the magnet holding portion with the contact wall, It has a third connecting wall that elastically deforms in response to the magnetic attractive force and connects the first side wall and the intervening wall, In a state where the magnetic attractive force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion which is the connection portion with the magnet holding portion, or forward from the second connection portion which is the connection portion with the intervening wall. The door packing has a plurality of support walls that connect the contact wall and the intervening wall and support the intervening wall, The abutment wall located between adjacent support walls is a storage compartment having a notch.

2. A storage container body which is an insulated box having a front opening, It comprises a door that opens and closes the aforementioned front opening, The aforementioned door is The door body including the insulation material, The door gasket is provided on the rear surface of the door body and seals the space between the door body and the opening edge of the front opening of the storage unit body. The aforementioned door gasket is A magnet holder having a sealing wall that holds the magnet and adheres to the opening edge when the door is closed, A contact wall that abuts against the rear surface of the door body, An intervening wall between the contact wall and the magnet holding portion, A first connecting wall that elastically deforms in response to the magnetic attraction force between the opening edge and the magnet, and connects the first side wall of the magnet holding portion and the contact wall, A second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall facing the first side wall of the magnet holding portion with the contact wall, It has a third connecting wall that elastically deforms in response to the magnetic attractive force and connects the first side wall and the intervening wall, In a state where the magnetic attractive force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion which is the connection portion with the magnet holding portion, or forward from the second connection portion which is the connection portion with the intervening wall. The door packing has a plurality of support walls that connect the contact wall and the intervening wall and support the intervening wall, The intervening wall located between adjacent support walls is a storage compartment having a notch.

3. A storage container body which is an insulated box having a front opening, It comprises a door that opens and closes the aforementioned front opening, The aforementioned door is The door body including the insulation material, The door gasket is provided on the rear surface of the door body and seals the space between the door body and the opening edge of the front opening of the storage unit body. The aforementioned door gasket is A magnet holder having a sealing wall that holds the magnet and adheres to the opening edge when the door is closed, A contact wall that abuts against the rear surface of the door body, An intervening wall between the contact wall and the magnet holding portion, A first connecting wall that elastically deforms in response to the magnetic attraction force between the opening edge and the magnet, and connects the first side wall of the magnet holding portion and the contact wall, A second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall facing the first side wall of the magnet holding portion with the contact wall, It has a third connecting wall that elastically deforms in response to the magnetic attractive force and connects the first side wall and the intervening wall, In a state where the magnetic attractive force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion which is the connection portion with the magnet holding portion, or forward from the second connection portion which is the connection portion with the intervening wall. The aforementioned door gasket is Multiple support walls connect the abutment wall and the intervening wall, and support the intervening wall. It has mounting legs that protrude forward from the contact wall and are attached to the packing mounting groove of the door body, The fifth connection portion, which is the connection portion between the wall portion of the mounting leg and the abutment wall, substantially coincides with the sixth connection portion, which is the connection portion between at least one of the support walls and the abutment wall. A storage facility in which the seventh connection portion, which is the connection portion between the support wall located closest to the third connecting wall and the intervening wall, is located closer to the second connecting wall than the sixth connection portion, which is the connection portion between the support wall located closest to the third connecting wall and the abutting wall.

4. A storage container body which is an insulated box having a front opening, It comprises a door that opens and closes the aforementioned front opening, The aforementioned door is The door body including the insulation material, The door gasket is provided on the rear surface of the door body and seals the space between the door body and the opening edge of the front opening of the storage unit body. The aforementioned door gasket is A magnet holder having a sealing wall that holds the magnet and adheres to the opening edge when the door is closed, A contact wall that abuts against the rear surface of the door body, An intervening wall between the contact wall and the magnet holding portion, A first connecting wall that elastically deforms in response to the magnetic attraction force between the opening edge and the magnet, and connects the first side wall of the magnet holding portion and the contact wall, A second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall facing the first side wall of the magnet holding portion with the contact wall, It has a third connecting wall that elastically deforms in response to the magnetic attractive force and connects the first side wall and the intervening wall, In a state where the magnetic attractive force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion which is the connection portion with the magnet holding portion, or forward from the second connection portion which is the connection portion with the intervening wall. The aforementioned door gasket is Multiple support walls connect the abutment wall and the intervening wall, and support the intervening wall. It has mounting legs that protrude forward from the contact wall and are attached to the packing mounting groove of the door body, The fifth connection portion, which is the connection portion between the wall portion of the mounting leg and the abutment wall, substantially coincides with the sixth connection portion, which is the connection portion between at least one of the support walls and the abutment wall. The storage compartment is provided in a position where the support wall closest to the third connecting wall is closer to the second connecting wall than the wall portion of the mounting leg closest to the third connecting wall.

5. The wall portion of the mounting leg is an internal wall that protrudes forward from the contact wall inside the mounting leg. The storage unit according to claim 4, wherein the fifth connection portion between the inner wall and the abutting wall substantially coincides with the sixth connection portion.

6. The storage unit according to any one of claims 1 to 5, wherein the range of motion in which the first side wall can be displaced in the front-rear direction in response to the magnetic attraction force is greater than the range of motion in which the second side wall can be displaced in the front-rear direction in response to the magnetic attraction force.

7. In a state where the magnetic attractive force is not acting, the second connecting wall has a second bulge that bulges rearward from the third connecting portion, which is the connection portion with the magnet holding portion. The storage facility according to any one of claims 1 to 5, wherein the portion of the second connecting wall from the third connection portion to the second bulging portion is inclined at 60 degrees with respect to the second side wall.

8. The storage facility according to any one of claims 1 to 5, wherein the wall thickness of the first connecting wall, the second connecting wall, and the third connecting wall is 0.4 mm or less.

9. The door body portion is provided with a frame-shaped rib that protrudes rearward from the rear surface and is inserted into the front opening when the door is closed. The door gasket is positioned to surround the rib, The storage facility according to any one of claims 1 to 5, wherein the first connecting wall is close to the outer peripheral wall of the rib.

10. The first connecting wall has a vent for introducing air into the space between the first connecting wall and the third connecting wall. The storage facility according to claim 9, wherein the wall thickness of the fourth connection portion, which is the connection portion of the first connecting wall with the abutting wall, is smaller than the wall thickness of the abutting wall.

11. The portion of the first connecting wall that is close to the outer peripheral wall has a shape that follows the outer peripheral wall. The storage unit according to claim 9, wherein the door packing has a fin portion that protrudes from the first connecting wall and contacts the outer peripheral wall.

12. A storage container body which is an insulated box having a front opening, It comprises a door that opens and closes the aforementioned front opening, The aforementioned door is The door body including the insulation material, The door gasket is provided on the rear surface of the door body and seals the space between the door body and the opening edge of the front opening of the storage unit body. The aforementioned door gasket is A magnet holder having a sealing wall that holds the magnet and adheres to the opening edge when the door is closed, A contact wall that abuts against the rear surface of the door body, An intervening wall between the contact wall and the magnet holding portion, A first connecting wall that elastically deforms in response to the magnetic attraction force between the opening edge and the magnet, and connects the first side wall of the magnet holding portion and the contact wall, A second connecting wall that elastically deforms in response to the magnetic attraction force and connects the second side wall facing the first side wall of the magnet holding portion with the contact wall, It has a third connecting wall that elastically deforms in response to the magnetic attractive force and connects the first side wall and the intervening wall, In a state where the magnetic attractive force is not acting, the third connecting wall has a first bulge that bulges rearward from the first connection portion which is the connection portion with the magnet holding portion, or forward from the second connection portion which is the connection portion with the intervening wall. The aforementioned door gasket is A second intervening wall, distinct from the intervening wall, is interposed between the contact wall and the magnet holding portion. A storage facility comprising a second support wall that connects the front wall of the magnet holder and the second intervening wall, and supports the intervening wall.

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