refrigerator

Abstract

To provide a refrigerator whose door is hard to deform.SOLUTION: A refrigerator is provided with a door whose inside is a heat insulating unit, the door is provided with a mounting part 50 for mounting a storage container on the door, and the mounting part 50 protrudes into the door. The refrigerator is provided with an internal wall 52 that protrudes into the door and does not intersect with the mounting part 50, and a connection wall 53 connecting the internal wall 52 and the mounting part 50.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a refrigerator. [Background technology]

[0002] For example, as described in Patent Document 1, support members are attached to both the left and right sides of the back of a refrigerator's drawer door. A storage container for storing stored items rests on the support members. Usually, the support members are attached to the back of the drawer door with screws. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5679955 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when a large load is applied from above to the drawer door, a large stress is generated at the attachment portion of the support member to the drawer door, which may cause deformation of the drawer door.

[0005] Therefore, an object of the present invention is to provide a refrigerator whose door is less likely to deform. [Means for solving the problem]

[0006] A refrigerator comprising: a door filled with a foam insulation material inside; a support member for a storage container; and an attachment portion for attaching the support member to the door, the attachment portion protruding into the interior of the door; an inner wall protruding into the interior of the door and spaced apart from the attachment portion; and a connecting wall connecting the inner wall and the attachment portion; The door includes a front member that forms a front surface of the refrigerator and a rear member that forms a rear surface of the door, The door is The rear member By expanding toward the storage container side The foam insulation For the thick part and the thick part The foam insulationa thin portion, and the attachment portion is provided in the thin portion. The inner wall extends in the left-right direction to separate the thick portion side region and the thin portion side region, and the inner wall is divided at a portion in the left-right direction to connect the thick portion side region and the thin portion side region. It is characterized by: [Brief explanation of the drawings]

[0007] [Figure 1] Front view of the refrigerator. [Figure 2] FIG. 1 is a perspective view of a drawer door with a storage container, seen from the front. [Figure 3] A perspective view of the drawer door with storage container from the rear. [Figure 4] A perspective view of the drawer door without the storage container, seen from the rear. [Figure 5] FIG. 2 is an exploded perspective view of the front and rear members of the drawer door as viewed from the rear. [Figure 6] FIG. 10 is a perspective view of the rear member of the drawer door as seen from the front side (inside the door). [Figure 7] Top view of the interior wall. [Figure 8] A top view of the interior wall of the modified example. [Figure 9] FIG. 10 is a top view of the interior wall of another modified example. [Figure 10] A view of the mounting part of the modified example from the front (inside of the door). [Figure 11] A view of the mounting part of another modified example from the front (inside of the door). DETAILED DESCRIPTION OF THE INVENTION

[0008] The following embodiments will be described with reference to the drawings. The following embodiments are merely examples, and the scope of the invention is not limited thereto. The following embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. The following embodiments and their modifications are within the scope of the invention set forth in the claims and their equivalents.

[0009] In the following explanation, "front" refers to the side where the door that opens and closes the storage compartment opens, "rear" refers to the side where the door closes, and "left and right" refer to the left and right when looking at the refrigerator from the front.

[0010] The refrigerator 10 of this embodiment is provided with a refrigerator compartment, a vegetable compartment, an ice-making compartment, a small freezer compartment, and a large freezer compartment as storage compartments. As shown in Figure 1, the front opening of the refrigerator compartment is opened and closed by a double door 11. The front openings of the vegetable compartment, ice-making compartment, small freezer compartment, and large freezer compartment are opened and closed by drawer doors 12, 13, 14, and 15, respectively.

[0011] The refrigerator 10 is equipped with a refrigeration cycle device (not shown). Cold air generated by a cooler in the refrigeration cycle device is introduced into each storage compartment, thereby cooling each storage compartment to a set temperature.

[0012] As shown in FIGS. 2 to 4, support members 30, 40 are attached to the rear surface of drawer door 13 of the ice making compartment and the rear surface of drawer door 14 of the small freezer compartment, respectively.

[0013] As shown in Figure 4, support member 40 attached to drawer door 14 of the small freezer compartment has fixing portions 41 on both the left and right sides. Fixing portion 41 is a plate-shaped portion fixed to the rear surface of drawer door 14. Fixing portion 41 has three holes (not shown) for passing screws 51, which will be described later. Furthermore, support member 40 has left and right frame portions 42 extending rearward from each fixing portion 41, and a rear portion 43 extending left and right to connect the rear ends of left and right frame portions 42 together.

[0014] The support member 30 attached to the drawer door 13 of the ice making compartment also has fixing parts 31 on both the left and right sides, left and right frame parts 32 extending rearward from each fixing part 31, and a rear part 33 connecting the rear ends of the left and right frame parts 32 together.

[0015] Storage containers 34, 44 are placed on these support members 30, 40. The storage containers 34, 44 are roughly rectangular parallelepiped containers that open upward. The storage container 44 in the small freezer compartment stores, for example, food items that are about to be cooled to freezing temperature. The storage container 34 in the ice-making compartment stores ice produced in the ice-making device.

[0016] As shown in Figure 5, the drawer door 14 of the small freezer compartment is formed by combining a front member 20 that forms the front surface of the refrigerator 10 and a rear member 23 that is positioned behind the front member 20 and forms the rear surface of the drawer door 14. The combination of the front member 20 and the rear member 23 forms an internal space. Although not shown, the space between the front member 20 and the rear member 23 is filled with foamed resin (foamed insulating material) as a heat insulating material. Therefore, the interior of the drawer door 14 is an insulated section with excellent heat insulating effect. The front member 20 and the rear member 23 are fixed together by the adhesive force of the foamed resin.

[0017] 5, the front member 20 has a front panel 21 made of a glass plate and a frame member 22 that holds the front panel 21. The front panel 21 is provided at the front end of the frame member 22. The frame member 22 has a substantially rectangular shape when viewed from the front-to-rear direction. The top, bottom, left, and right surfaces of the frame member 22 become the top, bottom, left, and right surfaces of the drawer door 14.

[0018] The rear member 23 has a frame portion 24 and a bulge portion that bulges rearward from the frame portion 24. The frame portion 24 of the rear member 23 is substantially rectangular when viewed from the front-to-rear direction, and matches the rear surface of the frame member 22 of the front member 20 in the front-to-rear direction. The bulge portion of the rear member 23 is made up of an upper bulge portion 25 along the upper edge of the frame portion 24, side wall-shaped bulge portions 26 along the left and right edges of the frame portion 24, a lower wall-shaped bulge portion 27 along the lower edge of the frame portion 24, and a lower bulge portion 28 that is below the upper bulge portion 25.

[0019] The upper bulge 25 has an upper plate 25a and a lower plate 25b that is continuous with the upper plate 25a. The upper plate 25a is a vertical plate. The lower portion of the lower plate 25b is gently inclined forward.

[0020] Furthermore, the side wall-shaped bulging portions 26 extend downward from both the left and right ends of the upper bulging portion 25. Furthermore, the boundary between the upper bulging portion 25 and the lower bulging portion 28 is located near the center of the height of the drawer door 14, specifically at a position between 40% and 60% of the height of the drawer door 14. Furthermore, the lower bulging portion 28 is surrounded by the upper bulging portion 25, the left and right side wall-shaped bulging portions 26, and the lower wall-shaped bulging portion 27.

[0021] The amount of rearward bulging of the lower bulging portion 28 is smaller than the amount of rearward bulging of each of the surrounding bulging portions (upper bulging portion 25, left and right side wall-shaped bulging portions 26, and lower wall-shaped bulging portion 27). Therefore, when the rear member 23 is viewed from the rear as shown in FIG. 5, the lower bulging portion 28 forms a recess within the entire bulging portion. Conversely, when the rear member 23 is viewed from the front (the interior side of the drawer door 14) as shown in FIG. 6, the lower bulging portion 28 protrudes forward more than its surroundings. A step 19 is formed at the boundary between the upper bulging portion 25 and the lower bulging portion 28. Because the volume inside the drawer door 14 is larger on the upper bulging portion 25 side than on the lower bulging portion 28 side, the thickness of the foam resin filled inside the drawer door 14 is thicker on the upper bulging portion 25 side than on the lower bulging portion 28 side.

[0022] When the front opening of the small freezer compartment is closed by the drawer door 14, the rearward bulging portion of the rear member 23 fits inside the front opening of the small freezer compartment. The outer wall portion of the bulging portion that fits inside the front opening of the small freezer compartment is referred to as the "internal fitting wall 35 of the bulging portion," and is shown in Figures 3 to 6. There are a total of four internal fitting walls 35 on the top, bottom, left, and right. As shown in Figure 5, a gasket 29 is provided on the frame portion 24 of the rear member 23 to seal the small freezer compartment with the drawer door 14 when the drawer door 14 is closed.

[0023] As shown in Figure 5, corner recesses 18, which are recessed when viewed from behind, are formed in the lower portions of both the left and right sides of rear member 23. As shown in Figure 6, corner recesses 18 are convex when viewed from the front (inside of drawer door 14). Corner recesses 18 are provided to avoid side wall-shaped bulges 26 and bottom wall-shaped bulges 27. Front ends of left and right frame portions 42 of support member 40 fit into these corner recesses 18.

[0024] As shown in Figures 5 to 7, three mounting portions 50 are provided on each of the left and right sides of the lower bulge portion 28. Two of the three mounting portions 50 (mounting portions designated by reference symbols 50a and 50b in Figure 6) are arranged side by side, with the remaining mounting portion (mounting portion designated by reference symbol 50c in Figure 6) being arranged below mounting portion 50a, which is closer to the center of the drawer door 14 in the left-right direction. One support member 40 is attached to these three mounting portions 50 on each of the left and right sides of the drawer door 14. Although the support member 40 is directly attached to the mounting portion 50, the storage container 44 is attached to the support member 40, so the mounting portion 50 can be said to be an attachment portion for attaching the storage container 44 to the drawer door 14.

[0025] When viewed from behind, each of the mounting portions 50 is a screw hole drilled in the surface of the lower bulging portion 28 of the rear member 23. On each of the left and right sides of the drawer door 14, three screw holes (mounting portions 50) are aligned with three holes drilled in the fixing portion 41 of the support member 40, and screws 51 are passed through the holes in the fixing portion 41 and the screw holes in the lower bulging portion 28. As a result, as shown in FIG. 4, the support members 40 are fixed to the drawer door 14 on each of the left and right sides of the drawer door 14.

[0026] 6, when viewed from the front (inside of the drawer door 14), each of the mounting portions 50 is a cylindrical protrusion that protrudes into the inside of the drawer door 14. These mounting portions 50 are so-called bosses.

[0027] As shown in Figure 6, an internal wall 52 is provided above the mounting portion 50 on each of the left and right sides of the drawer door 14. The internal wall 52 is a plate-like wall of a constant thickness that protrudes into the interior of the drawer door 14. The internal wall 52 extends left and right along the step 19 at the same height as the step 19 at the boundary between the upper bulge portion 25 and the lower bulge portion 28 in the vertical direction. The internal wall 52 is horizontal. The internal wall 52 is separated from the mounting portion 50 without intersecting with it.

[0028] The left and right internal walls 52 are separated at the center in the left-right direction of the drawer door 14. Therefore, there is no internal wall 52 at the center in the left-right direction of the drawer door 14. This area where there is no internal wall 52 becomes a flow path for the foamed resin when the foamed resin is filled inside the drawer door 14. This flow path is referred to as the central flow path 54.

[0029] As shown in FIG. 6 , an adjacent wall 55 is provided at the end of each of the left and right interior walls 52 on the central flow path 54 side. The adjacent wall 55 is a plate-like wall of a constant thickness that protrudes into the interior of the drawer door 14. The adjacent wall 55 is perpendicular to the interior wall 52 and extends vertically. The adjacent wall 55 is provided across the step 19 at the boundary between the upper bulging portion 25 and the lower bulging portion 28. The central flow path 54 is located between the two adjacent walls 55. The end of the interior wall 52 opposite the central flow path 54 is connected to the side wall 17 of the bulging portion. The side wall 17 is one of the interior fitting walls 35 of the bulging portion.

[0030] The interior wall 52 and the two mounting portions 50a, 50b located on the left and right sides immediately below the interior wall 52 are connected to each other by a connecting wall 53 extending in the vertical direction. The connecting wall 53 is a plate-like wall of a constant thickness that protrudes into the interior of the drawer door 14. The connecting wall 53 is perpendicular to the interior wall 52. The mounting portion 50c, located further below the mounting portion 50a located immediately below the interior wall 52, is not directly connected to the interior wall 52 by the connecting wall 53.

[0031] The vertical length of the connecting wall 53 is 0.5 to 2.0 times (preferably 0.5 to 1.0 times) the diameter of the mounting portion 50. Here, the vertical length of the connecting wall 53 also refers to the distance between the inner wall 52 and the mounting portions 50a and 50b immediately below it. The diameter of the mounting portion 50 refers to the diameter at the maximum diameter portion of the mounting portion 50 when viewed from the inside of the drawer door 14.

[0032] 6, on both the left and right sides of the drawer door 14, the two closest mounting portions 50 are connected by a mounting portion connecting wall 56. The mounting portion connecting wall 56 is a plate-like wall of a constant thickness that protrudes into the interior of the drawer door 14.

[0033] Specifically, the two mounting portions 50a, 50b arranged side by side are connected to each other by a mounting portion connecting wall 56 that extends left and right. Furthermore, one of the two mounting portions 50a, 50b arranged side by side, 50a, is connected to the mounting portion 50c below it by a mounting portion connecting wall 56 that extends up and down. The other mounting portion 50b of the two mounting portions 50a, 50b arranged side by side is not connected to the mounting portion 50c below it, and therefore no area enclosed by the mounting portion connecting wall 56 is formed.

[0034] Additionally, small walls 57 are provided so that the walls are arranged in a cross shape around each mounting portion 50. The small walls 57 are plate-like walls of a constant thickness that protrude into the interior of the drawer door 14. The small walls 57 are provided in contact with the mounting portions 50 at locations on the top, bottom, left, and right of the mounting portion 50 where there are no connecting walls 53 or mounting portion connecting walls 56.

[0035] As a result, the walls (connecting wall 53, mounting portion connecting wall 56, and small wall 57) are arranged to form a cross around the mounting portions 50a, 50b immediately below the interior wall 52. Also, the walls (mounting portion connecting wall 56 and small wall 57) are arranged to form a cross around another mounting portion 50c located below mounting portion 50b.

[0036] The vertical and horizontal lengths of the small wall 57 are 0.5 to 2.0 times (preferably 0.5 to 1.0 times) the diameter of the attachment portion 50 .

[0037] As shown in FIG. 6 , an upper extension wall 58 extends along the inner surface of the upper bulge 25, which is one of the inner surfaces of the drawer door 14. The upper extension wall 58 is a plate-like wall of a constant thickness that protrudes into the interior of the drawer door 14. The upper extension wall 58 extends in the vertical direction and connects the interior wall 52 to the inner surface of the upper wall 16 of the bulge (i.e., another surface connected to the edge of the inner surface of the upper bulge 25). The upper wall 16 of the bulge is one of the interior fitting walls 35. Two upper extension walls 58 are provided on each of the left and right sides of the drawer door 14.

[0038] The upper extension wall 58 has a portion that is lower in height than the inner wall 52. Here, the wall height refers to the length from the inner surface of the portion of the inner surface of the drawer door 14 that bulges most rearward (i.e., the inner surface of the upper bulging portion 25) to the front end of each wall (i.e., the end in the direction of protrusion into the interior of the drawer door 14). Specifically, the upper extension wall 58 is low in its vertical center and upper portion and high in its lower portion, which is on the inner wall 52 side. The heights of the vertical center and upper portion of the upper extension wall 58 are lower than the height of the inner wall 52. Meanwhile, the lower portion of the upper extension wall 58 gradually increases in height as it approaches the inner wall 52, and is highest at the position where it connects to the inner wall 52. The vertical length of the lower portion of the upper extension wall 58 (i.e., the portion where it gradually increases in height) is not limited. The height of the upper extension wall 58 at the position where it connects to the inner wall 52 may be the same as or lower than the inner wall 52.

[0039] As shown in Figure 6, on each of the left and right sides of the drawer door 14, the upper extension wall 58 closer to the central flow path 54 is aligned with the mounting portion 50 and other walls. Specifically, from top to bottom, the upper extension wall 58, connecting wall 53, upper mounting portion 50a, mounting portion connecting wall 56, lower mounting portion 50c, and small wall 57 are aligned. Also, on each of the left and right sides of the drawer door 14, the upper extension wall 58 farther from the central flow path 54 is aligned with the mounting portion 50 and other walls. Specifically, from top to bottom, the upper extension wall 58, connecting wall 53, mounting portion 50b, and small wall 57 are aligned.

[0040] Furthermore, on each of the left and right sides of the drawer door 14, two mounting portions 50, two small walls 57, and one mounting portion connecting wall 56 are lined up in a row in the left-right direction immediately below the internal wall 52. Below this row, one mounting portion 50 and two small walls 57 are lined up in a row in the left-right direction. In this way, on each of the left and right sides of the drawer door 14, multiple rows of walls are provided lined up in the left-right direction below the internal wall 52.

[0041] 6, a reinforcing wall 59 is provided inside the lower-wall-shaped bulge 27. The reinforcing wall 59 is a plate-like wall with a constant thickness that protrudes into the inside of the drawer door 14. The reinforcing wall 59 extends vertically to connect the upper and lower surfaces of the lower-wall-shaped bulge 27 and reinforce the lower-wall-shaped bulge 27.

[0042] The rear member 23 is a molded product made of synthetic resin. Therefore, there are no undercut portions in the rear member 23, which makes it easy to remove from the mold during molding. Here, an undercut shape refers to a convex or concave shape that makes it impossible to remove the molded product from the mold by simply moving the mold in one direction when removing the molded product from the mold. In this embodiment, since the direction in which the mold is moved is the front-to-rear direction, convex or concave shapes provided in a direction different from the front-to-rear direction (for example, a direction perpendicular to the front-to-rear direction, such as up, down, left, or right) become undercut shapes.

[0043] The frame member 22 of the front face member 20 is also a molded product made of synthetic resin. The frame member 22 of the front face member 20 also does not have any undercut-shaped portions.

[0044] In manufacturing the drawer door 14, first, the frame member 22 of the front member 20 and the entire rear member 23 are molded in a mold. Next, the front panel 21 is attached to the frame member 22, and the front member 20 is completed.

[0045] Next, rear member 23 is placed with the open side (the front side of refrigerator 10) facing downward, and a foaming resin concentrate is poured into rear member 23. The concentrate begins to flow through rear member 23 while foaming. Before the foaming of the foaming resin progresses, front member 20 is placed on top of rear member 23.

[0046] Even after the front member 20 is placed, the foaming and flow of the foaming resin continues between the front member 20 and the rear member 23. At that time, the foaming resin passes through the central flow path 54 and flows from a location above the inner wall 52 to a location below it, or from a location below the inner wall 52 to a location above it. The adjacent walls 55 on both sides of the central flow path 54 guide the foaming resin toward the central flow path 54 and further guide it vertically within the central flow path 54.

[0047] The foaming and flow of the foam resin progresses between the front member 20 and the rear member 23, and when foaming is complete, the drawer door 14 is completed. The front member 20 and the rear member 23 are not fixed together with fasteners such as screws, but are bonded together only by the adhesive strength of the foam resin.

[0048] Drawer door 13 of the ice-making compartment has the same structure as drawer door 14 of the small freezer compartment and is manufactured in the same manner. Support members are also attached to the rear surfaces of drawer door 12 of the vegetable compartment and drawer door 15 of the large freezer compartment, and storage containers are placed on each support member. These drawer doors 12, 15 have the same structure as drawer door 14 of the small freezer compartment and are manufactured in the same manner.

[0049] Next, the effects of the embodiment will be described. In this embodiment, the rear member 23 is provided with an attachment portion 50 for attaching the storage container 44 to the drawer door 14, and the attachment portion 50 protrudes into the interior of the drawer door 14. The rear member 23 is also provided with an internal wall 52 that protrudes into the interior of the drawer door 14 and extends without intersecting with the attachment portion 50, and a connecting wall 53 that connects the internal wall 52 and the attachment portion 50.

[0050] Because the internal walls 52 are provided in this manner, even if a force that would cause deformation is applied to the drawer door 14, the reinforcing effect of the internal walls 52 makes the drawer door 14 less likely to deform. In particular, the presence of the internal walls 52 improves the strength of the drawer door 14, making it less likely to deform. Furthermore, because the internal walls 52 do not intersect with the mounting portions 50, it is possible to prevent the internal walls 52 and the mounting portions 50 from displacing together when force is applied to the mounting portions 50, thereby suppressing deformation. Furthermore, because connecting walls 53 are provided that connect the internal walls 52 to the mounting portions 50a and 50b, deformation is even less likely to occur around the mounting portions 50.

[0051] Here, since the support member 40 is attached to the mounting portion 50 and the storage container 44 is placed on the support member 40, a particularly large force is likely to be applied to the mounting portion 50. However, since a connecting wall 53 is provided that connects the interior wall 52 and the mounting portion 50, deformation is less likely to occur around the mounting portion 50.

[0052] Furthermore, in this embodiment, because the internal wall 52 is provided above the mounting portion 50, even if downward stress is generated in the mounting portion 50 due to, for example, a load being applied from above to the drawer door 14, the internal wall 52 can suppress downward displacement of the mounting portion 50, thereby effectively suppressing deformation of the drawer door 14. Furthermore, because the internal wall 52 extends in the left-right direction above the mounting portion 50, the drawer door 14 is strong against forces in the up-down direction. Furthermore, because the internal wall 52 is connected to the side wall 17 of the bulging portion of the rear member 23, deformation of the drawer door 14 can be effectively suppressed.

[0053] Furthermore, since the adjacent walls 55, which do not intersect with the mounting portion 50 and are different from the connecting walls 53, are provided on the internal wall 52, a unique effect is generated by the adjacent walls 55. Specifically, the two adjacent walls 55 are provided on either side of the central flow path 54, which makes it easier for the foamed resin to flow through the central flow path 54. Furthermore, since the adjacent walls 55 extend in the vertical direction, which is different from the internal wall 52, the adjacent walls 55 also have the effect of reinforcing the internal wall 52.

[0054] Furthermore, since the mounting portion connecting wall 56 connects the mounting portions 50 together, the rigidity of the area where multiple mounting portions 50 are arranged is increased, and deformation is less likely to occur even when force is applied to the mounting portions 50.

[0055] Furthermore, the upper extension wall 58 provided on the upper bulging portion 25 makes the drawer door 14 even more resistant to deformation. Furthermore, the lower end of the upper extension wall 58 is connected to the inner wall 52, and the upper end is connected to the upper wall 16 of the bulging portion, making the drawer door 14 even more resistant to deformation.

[0056] Furthermore, because upper bulging portion 25 bulges out more than lower bulging portion 28, the internal volume of drawer door 14 is larger on the upper bulging portion 25 side than on the lower bulging portion 28 side. Therefore, when the foaming resin contracts after foaming, a large stress is generated in the wall of upper bulging portion 25, which has a large volume. However, because upper extension wall 58 is provided on the inner surface of upper bulging portion 25, deformation of the wall of upper bulging portion 25 due to the stress can be suppressed.

[0057] Furthermore, since the attachment portion 50 is provided on the lower bulging portion 28, which is a portion with a smaller bulge amount, the attachment portion 50 is less likely to deform when a large stress is applied to the attachment portion 50.

[0058] In addition, an internal wall 52 is provided along the step 19 at the boundary between the upper bulging portion 25, which is the portion with a larger bulge amount, and the lower bulging portion 28, which is the portion with a smaller bulge amount, and the synergistic effect of the step 19 and the internal wall 52 makes the drawer door 14 less likely to deform.

[0059] Furthermore, since there are no undercut portions in the rear member 23 and the front member 20 that make up the drawer door 14, the molds used to mold these members are not complicated and are easy to mold.

[0060] Next, a modified example will be described.

[0061] In the modified example shown in Figure 8, one interior wall 152 extending laterally extends from the left side wall 17 of the bulging portion of the rear member 23 (the left end of the bulging portion) to the right side wall 17 (the right end of the bulging portion). The height of this interior wall 152 is lowered in the center in the left-right direction. This lowered portion becomes a central flow path 154 through which the foamed resin flows. Although not shown, this interior wall 152 may also be provided with an adjacent wall that defines the central flow path 154. A single interior wall may have multiple such lowered portions.

[0062] 9, the end of the inner wall 52 opposite the central flow path 54 does not have to be connected to the side wall 17 of the bulging portion. In this case, the foaming resin can flow through the gap 153 between the inner wall 52 and the side wall 17.

[0063] Furthermore, the internal wall may extend in another direction, such as up and down, instead of extending left and right as in the above embodiment. In this case, the internal wall does not intersect with the mounting portion 50, but a connecting wall is provided to connect the internal wall and the mounting portion 50. Such an internal wall also contributes to suppressing deformation of the drawer door 14.

[0064] 10, the internal wall 252 may surround an area where a plurality of attachment portions 50 are gathered. In this case, the internal wall 252 forms a closed area 251 that is a circular, rectangular, or other closed area (a substantially regular rectangular area in the case of FIG. 10). In this case, the internal wall 252 does not intersect with the attachment portions 50, and a connecting wall 253 is provided that connects the internal wall 252 and the attachment portions 50. When the internal wall 252 surrounds the closed area 251 where a plurality of attachment portions 50 are gathered, it is desirable that the height of a portion of the internal wall 252 is lower than the height of the other portions. This lowered portion becomes a flow path 254 for the foamed resin. In this modified example, the attachment portions 50 may also be connected to each other by an attachment portion connecting wall.

[0065] 11 , in an area where a plurality of mounting portions 50 are gathered, a plurality of mounting portion connecting walls 356 that connect the mounting portions 50 together may be arranged, forming a closed area 351 that is an area closed by the mounting portion connecting walls 356. In this case, as shown in the figure, it is desirable that a notch be formed in the mounting portion connecting wall 356 so that the portion is lower than the other portions, and that the lowered portion serves as a flow path 354 for the foamed resin. Also, any one of the plurality of mounting portion connecting walls 356 may be lower than the other mounting portion connecting walls 356.

[0066] Additionally, when a closed area is formed by some kind of wall inside the drawer door 14, it is desirable that the height of some of the walls be lower than the height of the other parts. For example, in the embodiment shown in Fig. 6, a closed area 49 is formed, surrounded by the inner wall 52, two connecting walls 53, two mounting portions 50, and the mounting portion connecting wall 56. It is desirable that one of these walls is lower than the other walls, or that a notch is formed in a part of the wall so that that part is lower than the other parts. Such a lowered part becomes a flow path for the foamed resin.

[0067] Furthermore, there may be undercut portions in the rear member 23 and the front member 20 that make up the drawer door 14. When there are undercut portions, the foamed resin gets into those portions, making it difficult for the rear member 23 and the front member 20 to come off the foamed resin.

[0068] In the above embodiment, the upper bulging portion 25 bulges rearward by a large amount, while the lower bulging portion 28 bulges rearward by a small amount. However, the amount of bulging depending on the location is not limited to this. For example, the lower bulging portion may bulge more than the upper bulging portion. In either case, the thickness of the foamed resin is greater in areas with large bulging amounts than in areas with small bulging amounts. For example, an internal wall may be provided along the boundary between areas with large bulging amounts and areas with small bulging amounts, an attachment portion for the support member may be provided in areas with small bulging amounts, a connecting wall connecting the internal wall and the attachment portion may be provided in areas with small bulging amounts, and an extension wall extending from the internal wall to another surface (for example, the surface of the internal fitting wall) may be provided in areas with large bulging amounts.

[0069] The rearward bulging portion of the rear member may have a constant bulge amount throughout, or most of the rearward bulging portion of the rear member may have the same bulge amount. In such cases, the thickness of the foamed resin inside the drawer door will be approximately uniform. In such cases, the parts with the same bulge amount may be provided with an internal wall, an attachment portion for the support member, a connecting wall connecting the internal wall and the attachment portion, an extension wall extending from the internal wall to another surface (for example, the surface of the internal fitting wall), etc. [Explanation of symbols]

[0070] 10...refrigerator, 11...double door, 12, 13, 14, 15...drawer door, 16...upper wall, 17...side wall, 18...corner recess, 19...step, 20...front member, 21...front panel, 22...frame member, 23...rear member, 24...frame portion, 25...upper bulge portion, 25a...upper plate, 25b...lower plate, 26...side wall shaped bulge portion, 27...lower wall shaped bulge portion, 28...lower bulge portion, 29...gasket, 30...support member, 31...fixing portion, 32...left and right frame portions, 33...rear portion, 34...storage container, 35...internal fitting wall, 40...support member , 41...fixing portion, 42...left and right frame portions, 43...rear portion, 44...storage container, 49...blocked area, 50, 50a, 50b, 50c...mounting portion, 51...screw, 52...inner wall, 53...connecting wall, 54...central flow path, 55...adjacent wall, 56...mounting portion connecting wall, 57...small wall, 58...upper extension wall, 59...reinforcing wall, 152...inner wall, 153...gap, 154...central flow path, 251...blocked area, 252...inner wall, 253...connecting wall, 254...flow path, 351...blocked area, 354...flow path, 356...mounting portion connecting wall

Claims

1. A refrigerator comprising: a door filled with a foam insulation material inside; a support member for a storage container; and an attachment portion for attaching the support member to the door, the attachment portion protruding into the door, an inner wall that protrudes into the door and is spaced apart from the mounting portion; and a connecting wall that connects the inner wall and the mounting portion, The door includes a front member that forms a front surface of the refrigerator and a rear member that forms a rear surface of the door, the door includes a thick portion where the foam insulation material is thickened by the rear surface member bulging toward the storage container, and a portion where the foam insulation material is thinner than the thick portion, the attachment portion is provided on the thin portion, the inner wall extends in the left-right direction to separate the thick portion side region from the thin portion side region, The inner wall is divided in a part in the left-right direction, and the thick portion side area and the thin portion side area are connected. A refrigerator characterized by:

2. 2. The refrigerator according to claim 1, wherein the inner wall is provided along a step formed in the rear member, the step being provided at a boundary between the thick portion and the thin portion.

3. 3. The refrigerator according to claim 1, wherein an adjacent wall extending from one side of the inner wall to the other side is provided at an end of the divided portion of the inner wall, and the adjacent wall is spaced apart from the mounting portion.

4. The refrigerator according to any one of claims 1 to 3, wherein the inner wall is provided above the mounting portion.

5. The refrigerator according to any one of claims 1 to 4, wherein a plurality of the mounting portions are provided, and a mounting portion connecting wall is provided to connect the mounting portions to each other.

6. The refrigerator according to any one of claims 1 to 5, further comprising an extension wall extending along the inner surface of the door and another surface connected to an edge of the inner surface, the extension wall connecting the inner wall and the other surface.

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