Container and refrigerator having same

Abstract

A container (63a) according to the present invention has a first panel (63b) containing a regenerated resin, a second panel (63a3) containing a regenerated resin, and a ridge section (63c) or a chamfered section (63c) connecting the first panel (63b) and the second panel (63a3), the container (63a) is attached to a case (10) so as to be movable forward and backward, and when the container (63a) is pulled forward from the case (10), the ridge section (63c) or the chamfered section (63c) of the first panel (63b) and the second panel (63a3) is attached to the case (10) so as to be movable forward and backward. In the container (63a), a stress concentration region caused by the load of the object contained in the container (63a) is present, and a region having a plate thickness greater than a reference plate thickness, which is the plate thickness of a first panel (63b) for supporting the load of the container (63a), is not present in the vicinity of a ridge section (63c) or a chamfered section (63c) of the stress concentration region.

Description

Technical Field

[0001] The present invention relates to a container and a refrigerator having the container. Background Art

[0002] Recently, due to changes in the family environment such as the trend toward smaller families and the increase in dual-income couples, there is a trend toward diversification in the freezing storage methods in freezers. In the use of freezers in homes, in addition to the previous method of purchasing and storing foods sold in the freezing temperature zone, there are also methods of using the rapid freezing mode as the main method, such as rapid freezing storage of stored foods such as meat, or rapid freezing storage of cooked dishes.

[0003] For example, Patent Document 1 discloses a refrigerator having an upper freezer compartment for rapid freezing adjacent to the bottom of a refrigerating compartment and a lower freezer compartment adjacent to the bottom of the upper freezer compartment, wherein a plurality of storage containers are arranged in the lower freezer compartment.

[0004] In accordance with the trend of global environmental protection which has become a cause of recent abnormal weather, it is desired to use recycled plastics also in home electrical appliances.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2007-71497 Summary of the invention

[0008] Technical problem to be solved by the invention

[0009] In the refrigerator described in Patent Document 1, foods having a high temperature are stored in an upper freezing chamber provided adjacent to the upper side of a lower freezing chamber and are rapidly frozen.

[0010] The upper freezing chamber is provided with a large item box, a small item box, and a thin item box in order from bottom to top.

[0011] The large item box is supported from below by a support frame formed integrally with the upper freezer compartment door.

[0012] The small article box is supported at four points on the upper part of the large article box.

[0013] The thin article box slides in the front-rear direction on a rail formed in a heat-insulating box body forming the upper freezing chamber.

[0014] When the thin article box is pulled out forward, the thin article box is cantilevered and supported on the rails of the heat-insulating box.

[0015] Recycled plastics are used in the above-mentioned three-layer box.

[0016] The mechanical properties of recycled plastic materials, such as bending strength and tensile strength, as well as resistance to impact and resistance to chemicals (chemical substances), tend to be inferior to those of virgin materials.

[0017] Therefore, when a recycled material is used for a cartridge, there is a possibility that the strength may be lower than that of a new material.

[0018] Furthermore, when the thin article box is pulled forward, it is supported by the rails of the heat-insulating box in a cantilever manner, and therefore, the weight of the food stored in the box may cause cracks at stress concentration locations of the box.

[0019] Technical solutions to solve problems

[0020] In order to solve the above-mentioned problems, the first container of the present invention comprises: a first panel containing recycled resin; a second panel containing recycled resin; and an edge or chamfer connecting the first panel and the second panel, wherein the container is mounted on a box body in a manner capable of moving forward and backward, and when the container is pulled forward from the box body, there is a stress concentration area caused by the weight of the storage items in the container, and there is no portion near the edge or chamfer in the stress concentration area where the plate thickness is greater than the reference plate thickness, and the reference plate thickness is the plate thickness of the first panel in the container that supports the load.

[0021] A refrigerator according to a second aspect of the present invention includes the container according to the first aspect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a cold storage.

[0023] Figure 2 yes Figure 1 II cross-sectional view.

[0024] Figure 3 This is a front view of the structure of the back of the cold storage.

[0025] Figure 4A It is a three-dimensional diagram including a partial cross section of the lower freezer compartment.

[0026] Figure 4B Perspective view of the lower freezer door and 3-layer containers in the lower freezer compartment.

[0027] Figure 4C It is a perspective view including a partial cross section of a state in which a lower freezer compartment door, a lower frozen storage container, an upper frozen storage container, and an uppermost frozen storage container are pulled out from a lower freezer compartment.

[0028] Figure 5A This is a three-dimensional view of the uppermost frozen storage container viewed from the upper front oblique direction.

[0029] Figure 5B This is a three-dimensional view of the uppermost frozen storage container viewed from the oblique front and bottom.

[0030] Figure 5C This is a top view of the top freezer storage container as seen from above.

[0031] Fig. 6A This is a perspective view of a state in which the uppermost frozen storage container in the lower freezer compartment is pulled out, as seen from obliquely above.

[0032] Figure 6B yes Fig. 6A Enlarged view of Part II.

[0033] Figure 6C yes Figure 6B III-III cross-sectional view.

[0034] Fig. 7A This is a perspective view of a state in which the uppermost frozen storage container in the lower freezer compartment is pulled out, as seen from obliquely below.

[0035] Figure 7B yes Fig. 7A Enlarged view of part IV.

[0036] Figure 8 This is a perspective view of the vicinity of a rear flange support portion of the rear portion of the uppermost frozen storage container supported by a first support portion at a first support point of the guide rail portion and a second support portion at a second support point S2 of the guide rail portion.

[0037] Fig. 9A The rear flange support portion of the topmost frozen storage container formed of recycled plastic in the comparative example is shown in FIG. Figure 5B The enlarged corresponding figure when viewed in the V direction.

[0038] Fig. 9B This is a photograph showing the right side portion near the boundary between the container portion and the rear flange support portion of the topmost frozen storage container formed of recycled plastic in a comparative example after a durability test in which cooking oil was applied.

[0039] Fig. 9C This is a photograph showing the left side portion near the boundary between the container portion and the rear flange support portion of the topmost frozen storage container formed of recycled plastic in a comparative example after a durability test in which edible oil was applied.

[0040] Fig. 10A This is a perspective view of the vicinity of the boundary between the container portion and the rear flange support portion of the uppermost frozen storage container molded from recycled plastic in a comparative example after molding.

[0041] Fig. 10B yes Fig. 10A VI direction to view.

[0042] Fig.11 This is a perspective view of the vicinity of the boundary between the container portion and the rear flange support portion and the stress concentration portion of the uppermost frozen storage container formed of recycled plastic as a comparative example.

[0043] Fig.12 The embodiment is a reclaimed plastic molded uppermost frozen storage container near the rear flange support portion Figure 5B Enlarged view of the V section.

[0044] Fig.13 It is a diagram showing the plate thickness near the rear flange support portion of the uppermost frozen storage container formed of recycled plastic according to the embodiment.

[0045] Fig.14 This is a perspective view showing a state in which an upper frozen storage container is supported by a lower frozen storage container.

[0046] Fig.15A This is a three-dimensional view of the upper frozen storage container viewed from the front and above.

[0047] Fig. 15B This is a three-dimensional diagram of the upper frozen storage container and the stress concentration portion generated.

[0048] Fig.16A It is a three-dimensional diagram of a chilled container.

[0049] Fig. 16B This is a perspective view of a state where a chilled inner box that can be taken out and put into a chilled outer box is taken out from a chilled container.

[0050] Fig.17 It is a three-dimensional diagram of the state in which the refrigerated inner box is opened.

[0051] Fig.18A It is a partially cut-away stereoscopic view of a chilled fresh inner box moving forward inside a chilled fresh outer box.

[0052] Fig.18B It is a partially cutaway stereoscopic view showing the fulcrum when the chilled fresh inner box moves forward in the chilled fresh outer box.

[0053] Fig.19 This is a three-dimensional view of the stress concentration area near the chilled inner box. DETAILED DESCRIPTION

[0054] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and various modifications and application examples within the technical concept of the present invention are also included in the scope of the present invention.

[0055] Before describing the specific embodiments of the present invention, Figures 1 to 3The structure of a refrigerator to which the present invention is applied will be described.

[0056] Figure 1 A perspective view showing refrigerator 1 is shown. Figure 2 express Figure 1 II cross-sectional view. In addition, Figure 2 The cross section of the ice making chamber is not shown.

[0057] The cold storage 1 includes, from top to bottom, a refrigerating chamber 2, an ice-making chamber 3 on the left side as a part of a freezing chamber, an upper freezing chamber 4 on the right side, a lower freezing chamber 5, and a vegetable chamber 6. The ice-making chamber 3 and the upper freezing chamber 4 are arranged side by side between the refrigerating chamber 2 and the lower freezing chamber 5. For example, the refrigerating chamber 2 and the vegetable chamber 6 are storage chambers in a refrigerating temperature zone of about +3°C and about +3°C to +7°C, respectively.

[0058] The ice making room 3, upper freezing room 4 and lower freezing room 5 as freezing rooms are storage rooms in a freezing temperature zone of about -18°C. Although not shown, a partition wall arranged in the vertical direction is provided between the ice making room 3 and upper freezing room 4.

[0059] The size and volume of the upper freezing chamber 4 are smaller than those of the lower freezing chamber 5 therebelow, and a small amount of food is frozen and stored.

[0060] like Figure 1 As shown, the top refrigerator compartment 2 has a left-right split refrigerator compartment door 2a, 2b on the front side. The ice compartment 3, the upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6 have a pull-out ice compartment door 3a, an upper freezer compartment door 4a, a lower freezer compartment door 5a, and a vegetable compartment door 6a, respectively.

[0061] A sealing gasket (not shown) with a built-in magnet is provided along the outer edge of each door (2a, 2b, 3a, 4a, 5a, 6a) on the storage chamber (2, 3, 4, 5, 6). When each door is closed, the sealing gasket is in close contact with the flange of the outer box of the cold storage formed by the iron plate and each partition iron plate, thereby suppressing the intrusion of external air into the storage chamber and the leakage of cold air from the storage chamber.

[0062] like Figure 2 As shown, a cooler storage chamber 13 for storing a cooler 19 is provided at the rear of the lower freezer chamber 5. A machine chamber 11 having a built-in compressor 12 is formed at the lower portion of the refrigerator body 10. The cooler storage chamber 13 is connected to the machine chamber 11 through a drainage passage 14. Condensed water of the cooler 19 is discharged through the drainage passage 14.

[0063] The outside and the inside of the refrigerator body 10 closed by the doors (2a, 2b, 3a, 4a, 5a, 6a) are separated by a heat-insulating box 15. The heat-insulating box 15 is formed by filling a foam insulation material (foamed urethane) between an inner box and an outer box.

[0064] A plurality of vacuum insulation materials 16 are mounted on the heat insulating box 15 .

[0065] The refrigerator body 10 is divided into the refrigerator compartment 2, the upper freezer compartment 4, and the ice making compartment 3 by the upper heat insulating partition wall 17a (see Figure 1 ). In addition, the lower freezer compartment 5 and the vegetable compartment 6 are divided by the lower heat insulating partition wall 17b.

[0066] A horizontal partition 18 is provided at the upper portion of the lower freezer compartment 5. The horizontal partition 18 separates the ice making compartment 3 and the upper freezer compartment 4 from the lower freezer compartment 5 in the vertical direction. In addition, the ice making compartment 3, the upper freezer compartment 4 and the lower freezer compartment 5 are fluidically connected, so the same cold air is supplied. In addition, a vertical partition is provided at the upper portion of the horizontal partition 18 to separate the ice making compartment 3 from the upper freezer compartment 4 in the left-right direction.

[0067] Horizontal partition 18 (see Figure 2 ) together with the front surface of the lower heat-insulating partition wall 17b and the front surfaces of the left and right side walls of the refrigerator body 10, are in contact with a gasket (not shown) provided on the surface of the lower freezer door 5a on the storage compartment side. The gasket (not shown) provided on the storage compartment side of the ice-making compartment door 3a and the upper freezer door 4a is in contact with the horizontal partition 18, the vertical partition (not shown), the upper heat-insulating partition wall 17a and the front surfaces of the left and right side walls of the refrigerator body 10 to seal, thereby suppressing the movement of cold air between each storage compartment and each door.

[0068] <Cooling method of cold storage>

[0069] Next, a method of cooling refrigerator 1 will be described.

[0070] As described above, cooler storage room 13 having cooler 19 as a cooling mechanism is formed in refrigerator 1 (refrigerator main body 10). Above cooler 19 in cooler storage room 13, blower fan 20 as a blower mechanism is provided.

[0071] exist Figure 2 The air cooled by heat exchange in the cooler 19 shown in FIG. 1 (hereinafter referred to as cold air) is blown by the blower fan 20 (refer to FIG. Figure 2 ) through the refrigerating chamber air supply pipe 21, the freezing chamber air supply pipe 22 and the ice making chamber air supply pipe (not shown), respectively to Figure 1 The storage compartments shown, namely, the refrigerating compartment 2, the ice-making compartment 3, the upper freezing compartment 4, the lower freezing compartment 5, and the vegetable compartment 6 are transported.

[0072] The air supply to each storage room is controlled by a refrigerating room damper 23 of a first air supply control mechanism for controlling the air supply volume to the refrigerating room 2 in the refrigerating temperature zone, and a freezing room damper 24 of a second air supply volume control mechanism for controlling the air supply volume to the freezing rooms 4, 5 in the freezing temperature zone.

[0073] Figure 3 express Figure 1 The front view is a rear view of the internal structure of refrigerator 1 shown.

[0074] The air supply ducts (21, 22) for delivering cold air to the refrigerating chamber 2, the ice making chamber 3, the upper freezing chamber 4, the lower freezing chamber 5 and the vegetable chamber 6 are as follows: Figure 3 The dotted line, Figure 2 Specifically, when the refrigerator compartment damper 23 is open and the freezer compartment damper 24 is closed, cold air is blown out from the blow-out ports 25 (see FIG. 2 ) provided in the plurality of layers via the refrigerator compartment air supply duct 21. Figure 3 ) is transported to the cold storage room 2.

[0075] In addition, the cold air cooled in the refrigerating chamber 2 is returned from a refrigerating chamber return port 26 (see Figure 3 ) through the refrigerator-vegetable compartment connecting pipe 27 (refer to Figure 3 ), from the vegetable chamber outlet 28 (refer to Figure 3 ) to the vegetable compartment 6. The return cold air from the vegetable compartment 6 is supplied from the vegetable compartment return duct inlet 29 (see Figure 3 ) through the vegetable chamber return pipe 30 (refer to Figure 2 ), returns from the vegetable chamber return pipe outlet to the lower part of the cooler storage chamber 13 ( Figure 2 In addition, as another structure, it is also possible to configure the refrigerator compartment-vegetable compartment connecting pipe 27 (see Figure 3 ) is connected to the vegetable chamber 6 and returns to Figure 3 As an example of this, a vegetable compartment air supply duct is arranged at the front projection position of the refrigerator compartment-vegetable compartment connecting duct 27, and the cold air that has undergone heat exchange in the cooler 19 is blown out from the vegetable compartment outlet 28 (see FIG. Figure 3 ) directly supplies air to the vegetable chamber 6.

[0076] exist Figure 2 A partition member 31 is provided in front of the cooler storage chamber 13 to separate the ice making chamber 3, the upper freezing chamber 4, the lower freezing chamber 5 and the cooler storage chamber 13. Figure 3The partition member 31 shown in the figure has a pair of air outlets 32a, 32b, 33a, 33b formed at the top and bottom. Figure 2 When the freezer compartment damper 24 is open, the cold air that has undergone heat exchange in the cooler 19 is blown by the blower fan 20 through the ice making compartment blower duct (not shown) and the upper freezer compartment blower duct 34. Figure 3 The blow-out ports 32a and 32b shown in the figure respectively send air to the ice making chamber 3 and the upper freezing chamber 4. In addition, the lower freezing chamber air supply duct 35 (see Figure 2 )from Figure 3 The air outlets 33a and 33b shown in the figure are directed toward the lower freezing chamber 5 (see Figure 1 ) to supply air. In addition, a blow-out port may be additionally provided in the lower freezing chamber 5 as required.

[0077] <Upper freezer compartment 4, lower freezer compartment 5, vegetable compartment 6>

[0078] like Figure 2 As shown, the upper freezer compartment 4, the lower freezer compartment 5 and the vegetable compartment 6 are equipped with doors (4a, 5a, 6a) disposed in front of each storage compartment.

[0079] An upper frozen storage container 41 to be stored in the upper freezer compartment 4 is attached to the upper freezer compartment door 4a.

[0080] The lower freezer door 5a is provided with a plurality of frozen storage containers stored in the lower freezer 5. The plurality of frozen storage containers are an upper frozen storage container 61 and a lower frozen storage container 62. The uppermost frozen storage container 63 is provided in the refrigerator body 10.

[0081] An upper vegetable storage container 71 and a lower vegetable storage container 72 for storing in the vegetable compartment 6 are attached to the vegetable compartment door 6a.

[0082] Through the above structure, the user places his hands on the handles not shown in the figure, pulls the ice making chamber door 3a, the upper freezer chamber door 4a, the lower freezer chamber door 5a and the vegetable chamber door 6a toward the front, and pulls out the ice making storage container 3b (not shown), the upper frozen storage container 41, the lower frozen storage container 62, and the lower vegetable storage container 72.

[0083] <Lower freezer compartment 5>

[0084] Figure 4A 3D is a perspective view including a partial cross section of the lower freezing chamber 5.

[0085] Figure 4B A perspective view showing the lower freezer compartment door 5a and the three-layer container in the lower freezer compartment 5.

[0086] As described above, the lower frozen storage container 62 and the upper frozen storage container 61 are attached to the lower freezer compartment door 5a.

[0087] The uppermost frozen storage container 63 is attached to the refrigerator body 10 so as to be freely taken out and put in.

[0088] Figure 4C 3 is a perspective view including a partial cross section showing a state in which the lower freezer door 5a, the lower frozen storage container 62, the upper frozen storage container 61, and the uppermost frozen storage container 63 are pulled out from the lower freezer compartment 5.

[0089] like Figure 2 As shown, the lower frozen storage container 62 is suspended by the flange portion of the upper side of the lower frozen storage container 62 on the support arm 5d installed in the inner box of the freezer door. In the lower frozen storage container 62, frozen food and large food materials can be stored.

[0090] In the Figure 1 As shown, the freezer compartment door 5a is pulled out, and at the same time, the lower frozen storage container 62 and the upper frozen storage container 61 are pulled out.

[0091] like Figure 4B As shown, in the upper frozen storage container 61, the upper container support portion 61t is supported at four points on the upper portion of the lower frozen storage container 62.

[0092] The upper frozen storage container 61 is provided with one support portion 61 t symmetrically on both sides.

[0093] The upper frozen storage container 61 can store small frozen foods such as ice cream.

[0094] In the uppermost frozen storage container 63 , flange portions 63 b at both left and right end portions are placed on the concavo-convex rail portions r1 formed on the side walls of the lower freezer compartment 5 .

[0095] The uppermost frozen storage container 63 can slide in the front-rear direction by sliding both left and right ends on the concave-convex rail parts r1.

[0096] The uppermost frozen storage container 63 is used to store foods without thickness and foods that require home freezing.

[0097] Figure 5A 3 is a perspective view of the uppermost frozen storage container 63 as viewed from the upper front obliquely.

[0098] Figure 5B 3 is a perspective view of the uppermost frozen storage container 63 as viewed from the oblique front and bottom.

[0099] Figure 5C3 is a plan view of the uppermost frozen storage container 63 as viewed from above.

[0100] The uppermost frozen storage container 63 has a container portion 63a and a flange portion 63b.

[0101] The container portion 63a is formed in a thin box shape that is open at the top.

[0102] The flange portion 63b is formed continuously with the container portion 63a so as to surround the periphery of the container portion 63a. At the rear portion of the flange portion 63b, a rear flange support portion 63b1 protrudes rearward.

[0103] like Figure 2 , Figure 4A As shown, when the uppermost frozen storage container 63 is not in use, the uppermost frozen storage container 63 is stored in the refrigerator body 10 .

[0104] Fig. 6A 5 shows a perspective view of the state where the uppermost frozen storage container 63 in the lower freezer compartment 5 is pulled out, as viewed from above. Fig. 6A In the figure, the lower frozen storage container 62 and the upper frozen storage container 61 are omitted.

[0105] Figure 6B express Fig. 6A Enlarged view of Part II.

[0106] Figure 6C express Figure 6B III-III cross-sectional view.

[0107] Fig. 7A 5 shows a perspective view of the state where the uppermost frozen storage container 63 in the lower freezer compartment 5 is pulled out, as viewed from obliquely below. Fig. 7A In the figure, the lower frozen storage container 62 and the upper frozen storage container 61 are omitted.

[0108] Figure 7B express Fig. 7A Enlarged view of part IV.

[0109] When the uppermost frozen storage container 63 is in use, Figure 4C As shown, the refrigerator body 10 is pulled out from the refrigerator body 10. Since the uppermost frozen storage container 63 is cantilevered from the refrigerator body 10, the user can visually observe the interior of the container portion 63a of the uppermost frozen storage container 63.

[0110] like Fig. 6A As shown, when the uppermost frozen storage container 63 is pulled out toward the front, the flange portions 63b at the left and right ends of the uppermost frozen storage container 63 slide on the concavo-convex rail portions r1.

[0111] like Figure 6C As shown, when the uppermost frozen storage container 63 is pulled forward, the uppermost frozen storage container 63 is cantilever supported by the rear flange support portions 63b1 at both left and right rear ends. The rear flange support portion 63b1 is a part of the flange portion 63b.

[0112] like Figure 6C As shown, the rear flange support portion 63b1 is supported by the first support portion r1a of the rail portion r1 and the second support portion r1b of the rail portion r1, and the uppermost frozen storage container 63 is maintained in a state of being pulled out in the forward direction.

[0113] The first support portion r1a of the rail portion r1 corresponds to the first fulcrum S1 of the rail portion r1, and the second support portion r1b of the rail portion r1 corresponds to the second fulcrum S2 of the rail portion r1.

[0114] Figure 8 The perspective view shows the vicinity of the rear flange support portion 63b1 of the rear portion of the uppermost frozen storage container 63 supported by the first support portion r1a of the first support point S1 of the rail portion r1 and the second support portion r1b of the second support point S2 of the rail portion r1.

[0115] The rear flange support portion 63b1 of the rear portion of the uppermost frozen storage container 63 receives an external force P11 at the first supporting point S1 and receives an external force P12 at the second supporting point S2.

[0116] <Comparative Example Uppermost Frozen Storage Container 163>

[0117] Fig. 9A The vicinity of the rear flange support portion 163b1 of the uppermost frozen storage container 163 of the comparative example is shown. Figure 5B The enlarged corresponding figure when viewed in the V direction.

[0118] In the uppermost frozen storage container 163 formed of recycled plastic in the comparative example, a reinforcing rib r10 is formed over the back surface 163a1 of the back side of the container portion 163a and the outer frame flange support portion 163b2 of the rear flange support portion 163b1 for the purpose of improving strength (the reinforcing rib r10 is formed across the back surface 163a1 and the outer frame flange support portion 163b2). The reinforcing rib r10 is used to prevent damage to the uppermost frozen storage container 163 due to stress concentration.

[0119] Fig. 9B , Fig. 9C A photograph showing the right left portion near the boundary between the container portion 163a and the rear flange support portion 163b1 of the top frozen storage container 163 formed of recycled plastic in a comparative example after a durability test coated with edible oil, as viewed from above (observing the front side of the top frozen storage container 163).

[0120] After the durability test, the uppermost frozen storage container 163 of the comparative example is cantilevered on the concave-convex guide rail r1 formed on the side wall of the lower freezer compartment 5, and the container ridgeline 163c (see Figure 5A ) was confirmed to have cracks in the vicinity.

[0121] In order to clarify the cause of the crack generation, the shape of the container portion 163a and the rear flange support portion 163b1 of the uppermost frozen storage container 163 formed of recycled plastic in the comparative example was checked as follows.

[0122] Fig. 10A A perspective view showing the vicinity of the boundary between the container portion 163a and the rear flange support portion 163b1 of the uppermost frozen storage container 163 formed of recycled plastic according to a comparative example after molding.

[0123] Fig. 10B express Fig. 10A VI direction to view.

[0124] The uppermost frozen storage container 163 of the comparative example is formed of polystyrene which is a recycled plastic.

[0125] Concave dents h1, h2, h3, and h4 are confirmed near the container ridgeline 163c at the boundary between the container portion 163a and the rear flange support portion 163b1 of the uppermost frozen storage container 163. When reinforcing ribs r10 are provided on the plates on both sides of the container ridgeline 163c, dents h1, h2 and dents h3, h4 are generated on the plates on both sides. Fig. 10B As shown, the dimples h1 and h2 and the dimples h3 and h4 are formed at the locations where the plate thickness differs due to the provision of the reinforcing rib r10.

[0126] It is estimated that tensile stress is generated near the container edge line 163c due to the dents h1, h2, h3, and h4, and cracks are generated (see Fig. 9B , Fig. 9C ).

[0127] like Figure 8 As shown, the uppermost frozen storage container 163 of the comparative example has the same shape as the uppermost frozen storage container 63 of the embodiment except for the reinforcing rib r10, and therefore receives external forces P11 and P12.

[0128] Fig.11 The vicinity of the boundary between the container portion 163a and the rear flange support portion 163b1 of the uppermost frozen storage container 163 formed of recycled plastic in the comparative example and the stress concentration portion O1 are shown in a perspective view.

[0129] Thus, in the uppermost frozen storage container 163 of the comparative example, Fig.11 As shown, stress is concentrated on the stress concentration portion O1. Similarly, stress of the uppermost frozen storage container 63 of the embodiment is also concentrated on the stress concentration portion O1.

[0130] Here, the location where the stress concentration part O1 is generated varies depending on the shape and supporting structure of the container, so analysis software is used to determine the location. The calculation method of the analysis software mainly uses linear analysis using the finite element method. The analysis conditions are set by applying a load of the assumed weight of the food to the bottom surface of the container on the side where the food is placed, and applying constraints to the fulcrum supporting the container. These conditions are analyzed based on the shape and size of the bottom surface of the container, the position, shape and size of the supporting structure, etc., and the optimal conditions are considered. As analysis software, for example, Ansys Mechanical can be used.

[0131] like Fig. 10A As shown, in the uppermost frozen storage container 163 of the comparative example, concave dimples h1, h2, h3, and h4 are generated near the stress concentration portion O1. Since deformation occurs near the concave dimples h1, h2, h3, and h4, it is considered that stress increases sharply.

[0132] Therefore, it is estimated that in the uppermost frozen storage container 163 of the comparative example, excessive stress due to the dimples h1 and h2 was generated near the stress concentration portion O1, and cracks were generated.

[0133] <Measures for the uppermost frozen storage container 63 of the embodiment>

[0134] Therefore, in the uppermost frozen storage container 63 of this embodiment (the present invention), measures are taken to prevent excessive stress from being generated near the stress concentration portion O1 as follows. The stress concentration portion O1 is a region where the stress value is 10% or more higher than that of the surrounding region.

[0135] Specifically, regarding the container edge 63c (near the support portion) where stress is easily concentrated, no dents or weld lines are generated in the plates on both sides of the container edge 63c. In addition, the container edge 63c may be chamfered (form a chamfered portion). The chamfer may be a form in which the surfaces are connected in a planar manner (so-called C-shaped cutting) or a form in which the surfaces are connected in a circular arc.

[0136] Fig.12 The rear flange support portion 63b1 and the vicinity of the uppermost frozen storage container 63 in the embodiment (the present invention) are shown. Figure 5B Enlarged view of the V section.

[0137] In the embodiment, the top frozen storage container 63 formed of recycled plastic avoids the stress concentration portion O1, and a reinforcing rib rb is formed on the back side of the top frozen storage container 63, extending over the back side 63a1 of the container portion 63a and the outer frame rear flange support portion 63b2 of the rear flange support portion 63b1 (a reinforcing rib rb is formed across the back side 63a1 and the outer frame rear flange support portion 63b2).

[0138] From the stress concentration part O1 (refer to Fig.11 ) is separated to form reinforcing rib rb, and the strength of the uppermost freezing storage container 63 is improved. In addition, even if the endurance test of applying edible oil to the uppermost freezing storage container 63 is carried out, the generation of cracks is not observed.

[0139] Fig.13 The plate thickness near the rear flange support portion 63b1 of the uppermost frozen storage container 63 formed of recycled plastic in the embodiment (the present invention) is shown.

[0140] The bottom plate 63a2 of the container portion 63a of the uppermost frozen storage container 63 has a plate thickness t1 of 3.5 mm, and the side plate 63a3 of the container portion 63a has a plate thickness t2 of 3 mm.

[0141] The plate thickness t3 of the flange portion 63b of the container portion 63a of the uppermost frozen storage container 63 is formed to be 4 mm. The plate thickness t4 of the rear flange support portion 63b1 which is a part of the flange portion 63b is also 4 mm, which is the same as the plate thickness t3 of the flange portion 63b.

[0142] That is, in order to suppress the occurrence of cracks, the stress concentration portion O1 (see Fig.11 ) No portion having a plate thickness thicker than the reference plate thickness is provided. In addition, the reference plate thickness is as follows.

[0143] <Definition of reference plate thickness>

[0144] The container of the refrigerator 1 needs to bear the weight of the food, and the thickness of each surface is determined according to the size and support structure of the container.

[0145] Generally, the bottom plate to which the weight of food is directly applied requires the greatest strength, and therefore the plate thickness of the bottom plate becomes the reference plate thickness.

[0146] In order to reduce the weight of components and lower the manufacturing cost, the thickness of the wall surface of the container may be thinner than the reference thickness.

[0147] The top frozen storage container 63 is a structure that uses the flange 63b to support the weight of the container 63a. Therefore, the weight of the food and the top frozen storage container 63 is applied to the flange 63b, and the strength is most required. The flange 63b becomes the reference plate thickness. The stress concentration portion O1 is associated with the portion of the reference plate thickness t3 (4mm) and the portion of the plate thickness t2 (3mm) thinner than it. In the comparative example, since the rib r10 is provided on the stress concentration portion O1, the wall thickness is thicker than the reference plate thickness, and it is estimated that the dents h1 to h4 are likely to occur.

[0148] <Upper frozen storage container 61>

[0149] Fig.14 A perspective view showing a state in which the upper frozen storage container 61 is supported by the lower frozen storage container 62 .

[0150] As described above, the upper frozen storage container 61 is supported by the lower frozen storage container 62 via the four upper container support portions 61 t provided integrally and symmetrically.

[0151] Fig.15A The figure shows a perspective view of the upper frozen storage container as viewed from the front and above.

[0152] Fig. 15B A perspective view showing the upper frozen storage container 61 and the generated stress concentration portion O2.

[0153] The upper frozen storage container 61 is formed in a thin, laterally long box shape that is open at the top.

[0154] The upper frozen storage container 61 has a bottom plate 61 b ​​, a front plate 61 m , a rear plate 61 u , and two left and right side plates 61 s .

[0155] At the lower part of the left and right side plates 61s of the upper frozen storage container 61, two upper container support parts 61t are provided on each of the left and right sides, for a total of four.

[0156] Therefore, if Fig.15A As shown, the upper frozen storage container 61 in which the frozen storage is placed is subjected to the gravity P20 of the frozen storage and the external force P21 based on the four supports. Fig. 15B As shown, stress concentration areas O2 are generated at the boundaries between the bottom plate 6b and the side plate 61s, the boundaries between the bottom plate 61b and the rear plate 6u, and the boundaries between the side plate 61s and the rear plate 61u of the upper frozen storage container 61.

[0157] Similarly, although not shown, stress concentration portions O2 are generated at the boundaries between the bottom plate 61b and the side plate 61s, the boundaries between the bottom plate 61b and the front plate 6m, and the boundaries between the side plate 61s and the rear plate 6u of the upper frozen storage container 61.

[0158] The thickness of these stress concentration portions O2 is formed not to be thicker than the thickness of the bottom plate 61b which is the reference thickness. The upper frozen storage container 61 is structured such that the bottom plate 61b supports the upper frozen storage container 61 (its own weight), so the thickness of the bottom plate 61b is the reference thickness.

[0159] This can suppress the generation of excessive stress in the stress concentration portion O2 of the upper frozen storage container 61 .

[0160] <Fresh Container 64>

[0161] Fig.16A A perspective view showing a chilled container 64, Fig. 16B This is a perspective view showing a state in which the chilled inner box 65 that can be taken out and put into the chilled outer box 64s from the chilled container 64 is pulled forward.

[0162] exist Figure 1 The upper freezing chamber 4 is shown to be provided with a fresh ice container 64 .

[0163] The chilled container 64 includes a chilled outer box 64s and a chilled inner box 65 that allows for taking out and putting in the chilled outer box 64s.

[0164] The chilled outer box 64s has a box shape with an open front.

[0165] Fig.17 A perspective view showing a state in which the refrigerated inner box 65 is opened.

[0166] The chilled inner box 65 includes a box 65c for placing stored items, and a chilled door 65d rotatably mounted on the front of the box 65c.

[0167] The case 65c has a bottom plate 65c1, left and right side plates 65c2, and a rear plate 65c3.

[0168] A guided portion 65c4 is formed on the rear outer portion of the side plate 65c2 so as to protrude outward.

[0169] The chilled door 65d is rotatably mounted on the front of the left and right side panels 65c2. Fig.16A The closed state shown and Fig. 16B Open state shown.

[0170] Fig.18A A partially cutaway perspective view showing the state in which the chilled inner box 65 moves forward from the chilled outer box 64s.

[0171] Fig.18B A partially cutaway perspective view showing a fulcrum when the fresh inner box 65 moves forward from the fresh outer box 64s.

[0172] like Fig.18A As shown, an inner box side guide rib 64s1 is formed on the inner side of the chilled outer box 64s so as to extend in the front-rear direction.

[0173] Furthermore, an inner box lower guide rib 64s2 is formed on the inner bottom of the chilled outer box 64s so as to extend in the front-rear direction.

[0174] Fig.17 The guided portion 65c4 of the chilled inner box 65 shown in the figure is on the inner box side guide rib 64s1 of the chilled outer box 64s (see Fig.18A ) by sliding the lower part.

[0175] on the other hand, Fig.17 The bottom plate 65c1 of the fresh ice inner box 65 is shown as guiding ribs 64s2 (see Fig.18A ) on the top of the .

[0176] Thus, the fresh ice box 65 can move in the front-rear direction relative to the fresh ice box 64s. Fig.18A α21).

[0177] exist Fig.16A The fresh ice inner box 65 shown is filled with stored goods, and the weight of the stored goods is applied.

[0178] Therefore, if Fig.18A As shown, when the cold fresh inner box 65 is pulled forward, as shown in Fig.18B As shown, the guided portion 65c4 of the chilled inner box 65 receives a downward load P31 from the inner box side guide rib 64s1 of the chilled outer box 64s at the fulcrum S11. Moreover, the bottom plate 65c1 of the chilled inner box 65 receives an upward load P32 at the fulcrum S12 of the inner box lower guide rib 64s2 of the chilled outer box 64s.

[0179] Fig.19 A perspective view showing the vicinity of the stress concentration portion O3 of the chilled inner box 65 .

[0180] A stress concentration portion O3 is generated right in front of the guided portion 65c4 of the chilled inner box 65.

[0181] Therefore, the thickness of the stress concentration portion O3 of the left and right side plates 65c2 of the chilled inner box 65 is configured not to be thicker than the thickness of the bottom plate 65c1 serving as the reference thickness.

[0182] The weight of the food in the chilled inner box 65 is supported by the bottom plate 65c1, so the thickness of the bottom plate 65c1 serves as the reference thickness.

[0183] This can suppress the generation of excessive stress in the stress concentration portion O3 of the chilled inner box 65 .

[0184] According to the above structure, even if the container (63, 61, 65) is formed of recycled plastic, the cold storage 1 which does not generate|occur|produce cracks can be realized.

[0185] <<Other Implementation Methods>>

[0186] 1. The present invention is not limited to the above-described embodiments and modifications, and various modifications and specific embodiments can be implemented within the scope of the invention.

[0187] 2. Recycled plastics are resins that are recycled by heating and melting waste plastics. Waste plastics are preferably resins with few foreign matter, clear origin, and hygiene. Specifically, for example, resins from home appliances (white appliances such as refrigerators, etc.) can be cited. Foreign matter is, for example, carbide of resin produced during the melting of resin, metal (such as iron), etc., such as particles. The foreign matter contained in the recycled plastic has a color tone such as black, gray, etc., is granular, and is dispersed throughout the component. As a feature of polystyrene resin, transparent color can be cited, and containers formed from polystyrene resin are usually transparent. In the case of transparent color, there is a problem that foreign matter is easily conspicuous. Therefore, when using recycled plastics, by forming a transparent or opaque container with the same or similar color tone as the foreign matter, such as gray, it is possible to make it difficult for users to notice the foreign matter. Here, in order to improve the uniformity of the overall design of the cold storage, for example, when all containers and door shelves formed of polystyrene resin are unified in the same color system, due to the difference in the thickness of each component and whether the components overlap each other, sometimes even if they are colored with the same color, the user does not see the same color concentration, which sometimes damages the uniformity of the design. By considering the thickness of each component and the overlap of the components, each component is colored with different concentrations, the uniformity of the design can be improved, and foreign matter such as recycled plastic can also be made inconspicuous.

[0188] Description of Reference Numerals

[0189] 1 Cold Storage

[0190] 10 Refrigerator body (box)

[0191] 63 Top Freezer Storage Container (Container)

[0192] 63a3 Side panel (second panel)

[0193] 63b flange portion (first panel)

[0194] 63c container edge line (edge, chamfer)

[0195] 63 Top Freezer Storage Container (Container)

[0196] O1, O2, O3 are stress concentration parts (stress concentration areas).

Claims

1. A container, comprising: a first panel containing recycled resin; a second panel comprising recycled resin; and The edge or chamfer connecting the first panel and the second panel, the container is characterized in that: The container is mounted on the box body in a manner that allows it to move forward and backward. When the container is pulled forward from the box body, there is a stress concentration area caused by the weight of the contents of the container. The stress concentration region does not have a portion having a plate thickness greater than a reference plate thickness, the reference plate thickness being the plate thickness of the first panel supporting a load in the container.

2. The container according to claim 1, characterized in that: The stress concentration region has no portion having a plate thickness greater than a reference plate thickness near the edge portion or the chamfered portion. The reference plate thickness is the plate thickness of the first panel supporting a load in the container.

3. The container according to claim 1, characterized in that: A rib is provided outside the stress concentration region and in the vicinity of the stress concentration region.

4. The container according to claim 1, characterized in that: The container is cantilever supported on the box body.

5. A container capable of storing items therein, wherein: The container has a stress concentration area caused by the weight of the stored object. The stress concentration region does not have a portion where the plate thickness is greater than a reference plate thickness, which is the plate thickness of a plate supporting a load in the container.

6. A cold storage, characterized in that: A container according to claim 1 or 5.

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