JP2013119964A - Heat insulation cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation cabinet that can set a distance between left and right sides facing each other in a stockroom to be approximately the same at the front and back parts and can enlarge freedom degree in designing the interior decoration of the stockroom.SOLUTION: The heat insulation cabinet is provided with a cabinet body 2a with a periphery formed of heat insulation walls 24, 25, and 26 and a stockroom 7 with an open front. The left sidewall part 24 and the right sidewall part 25, facing each other to sandwich the stockroom, on the heat insulation walls in the stockroom cabinet body 2a comprises a pre-molded heat insulation panel 32 bonded between an inside plate 31 forming the inside surfaces of the stockroom 7 and an outside plate 30 forming the outside surfaces of the heat insulation wall respectively. A distance between the left and right side faces facing each other in the stockroom is set to have approximately the same dimension in the front and back parts of the stockroom.

Description

  Embodiments of the present invention relate to an insulated cabinet.

  Conventionally, heat insulation cabinets for household refrigerators have been formed by foaming and filling foam insulation with foamed urethane in the space formed between the inner box made of synthetic resin and the outer box made of steel plate. It is common. Such a heat insulation cabinet has a storage chamber whose front surface is open inside the inner box, and the storage chamber is surrounded by a heat insulating wall. In recent years, it has also been proposed to use a vacuum heat insulating panel as a part of the heat insulating material of the heat insulating wall, and to use a vacuum heat insulating pal and a foam heat insulating material in combination as the heat insulating material.

  In the heat insulation cabinet having such a configuration, when molding the inner box or foaming and filling the foam insulation between the inner box and the outer box, a molding jig is provided inside the inner box, It is necessary to mold the molding jig from the inner box after molding or after foam filling of the foam insulation. In this case, a draft for extracting the forming jig is required on the inner surface of the inner box. For this reason, as for the space | interval between the left side surface and right side surface which are in a storage chamber, the rear part of the back | inner side is set small compared with the front part of the opening part side (refer FIG. 7 of patent document 1). .

JP 2011-58657 A

  Interior items such as shelves and rails provided inside the storage room when the space between the opposing left and right sides in the storage room is different between the front part on the opening side and the rear part on the back side There is a problem that the design is restricted.

  Therefore, the space between the left side and the right side facing each other in the storage room can be set to be substantially the same between the front part and the rear part, and the degree of freedom in designing the interior of the storage room can be increased. Provide insulation cabinet.

  The heat insulation cabinet of this embodiment is provided with the cabinet main body which has the storage chamber which the circumference | surroundings were formed of the heat insulation wall and the front surface opened inside. The left side wall and the right side wall that are opposed to each other across the storage chamber on the heat insulating wall of the cabinet body are in advance between the inner plate that forms the inner surface of the storage chamber and the outer plate that forms the outer surface of the heat insulating wall, respectively. It is assumed that the molded heat insulation panel is bonded. The distance between the left side and the right side facing each other in the storage chamber is set to approximately the same size at the front and rear of the storage chamber.

The perspective view of the refrigerator by 1st Embodiment Perspective view of the heat insulation cabinet viewed from the upper right Perspective view of the heat insulation cabinet viewed from the lower right An exploded perspective view of the cabinet body Exploded perspective view of left side wall Vertical side view of cabinet body Longitudinal front view of cabinet body Transverse plan view of insulated cabinet Cross-sectional bottom view of the heat sink cabinet's refrigerator compartment view from the bottom Cross-sectional plan view showing the connecting portion between the left side wall and the back wall Sectional drawing shown along the cutting line X11-X11 of FIG. The perspective view of the part which attached the fixture for connection to the inner board Front view of the part where the rear shelf support member is attached to the inner plate Sectional drawing shown along the cutting line X14-X14 of FIG. Sectional drawing shown along the cutting line X15-X15 of FIG. The perspective view of the part which attached the shelf receiving member to the inner plate Sectional drawing shown along the cutting line X17-X17 of FIG. The perspective view of the part which attached the partition plate attachment member to the inner plate Front view of hole and slit part for inner plate partition mounting member Front view of the partition plate mounting member portion of the inner plate The perspective view of the 1st rail attachment member part in an inner board Front view of first rail mounting member portion on inner plate Sectional drawing shown along the cutting line X23-X23 of FIG. 1 is a longitudinal sectional view of a first rail mounting member and a portion where the rail is mounted. The perspective view of the part which attached the attachment member for partition walls to the inner board Longitudinal sectional view of a state in which a heat insulating partition wall is arranged on the partition wall mounting member Diagram explaining draft Transverse plan view showing a corner portion between the left wall portion and the back wall portion according to the second embodiment.

Hereinafter, the heat insulation cabinet of the refrigerator by several embodiment is demonstrated with reference to drawings. In addition, in each embodiment, the substantially same part is attached | subjected with the same code | symbol and description is abbreviate | omitted.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. FIG. 1 shows the appearance of the refrigerator 1 according to the first embodiment, and FIGS. 2 and 3 show the appearance of the heat insulation cabinet 2 of the refrigerator 1. Inside the heat-insulating cabinet 2, a refrigerator compartment 3 and a vegetable compartment 4 are provided in order from the top, an ice making room 5 and a small freezer compartment 6 are provided side by side below the vegetable compartment 4, and the main freezer compartment at the bottom. 7 is provided. These refrigerator compartment 3, vegetable compartment 4, ice making compartment 5, small freezer compartment 6, and main freezer compartment 7 each form a storage compartment. Among these, the refrigerator compartment 3 and the vegetable compartment 4 are controlled by the refrigerator temperature whose chamber | room temperature is about 1 to 5 degreeC, for example. Thus, since both the refrigerator compartment 3 and the vegetable compartment 4 are storage compartments of a refrigerator temperature zone, they are partitioned by a partition plate 8 made of synthetic resin, for example. The ice making room 5, the small freezer room 6, and the main freezer room 7 are controlled to a freezing temperature of, for example, −18 ° C. or lower, and are storage rooms in a freezing temperature zone. The vegetable compartment 4 in the refrigerated temperature zone and the ice making chamber 5 and the small freezer compartment 6 in the freezing temperature zone are partitioned vertically by a heat insulating partition wall 9 having heat insulating properties.

  As shown in FIGS. 2 and 3, a front partition portion 10 is provided in the front portion of the heat insulation cabinet 2 so as to be positioned in front of the partition plate 8 and extend in the lateral direction, and is positioned in front of the heat insulation partition wall 9. A front partition 11 extending in the lateral direction is provided. In addition, a front partitioning portion 12 is provided at the front portion of the heat insulation cabinet 2 and is positioned between the ice making chamber 5 and the small freezer compartment 6 and extends in the vertical direction. A front partition 13 that extends in the horizontal direction is provided between the front partition 13 and the front partition 13.

  The front of the refrigerator compartment 3 is opened and closed by two doors 15 and 16. The doors 15 and 16 are double doors that are rotated in the front-rear direction around hinges 17 and 18 provided at both left and right ends of the heat-insulating cabinet 2. The vegetable compartment 4 is opened and closed by a drawer type door 19 at the front. A vegetable storage container (not shown) is provided on the back side of the door 19. The ice making chamber 5 is opened and closed by a drawer type door 20 at the front. An ice making device (not shown) is provided in the ice making chamber 5, and an ice storage container (not shown) is provided on the back side of the door 20. The small freezer compartment 6 is opened and closed by a drawer type door 21 at the front. A storage container (not shown) is provided on the back side of the door 21. The main freezer compartment 7 is also opened and closed by a drawer-type door 22 at the front. A storage container (not shown) is provided on the back side of the door 22. Each door 15, 16, 19, 20, 21, 22 has heat insulation.

  As shown in FIG. 4, the cabinet body 2a of the heat insulation cabinet 2 forms a left side wall portion 24 forming a left side wall, a right side wall portion 25 forming a right side wall, and a back wall, which are separately formed. The inner wall 26, the ceiling wall 27 that forms the ceiling wall, and the bottom wall 28 that forms the bottom wall are combined to form a box with an open front. Therefore, the cabinet body 2a is formed by combining the left wall 24, the right wall 25, the back wall 26, the ceiling wall 27, and the bottom wall 28, which are separately formed. Each wall part 24-28 is comprised by the heat insulation wall, respectively so that it may mention later.

  The left side wall part 24 and the back wall part 26 are connected and fixed at the corner part of the left rear part using a corner fixing tool 29 (see FIGS. 4, 8, 9, and 10). Further, the right wall portion 25 and the back wall portion 26 are also connected and fixed at the corner portion on the right rear portion by using a corner fixing tool 29 (see FIGS. 8 and 9) similar to the corner fixing tool 29. These connection structures will be described later. The front part of the left side wall part 24 and the front part of the right side wall part 25 are connected by the front partition parts 10, 11 and 13. The heat insulation cabinet 2 is reinforced by these front partition parts 10, 11 and 13.

  Of the wall portions 24 to 27 described above, the left wall portion 24 is basically made of a metal plate outer plate 30 for the outer box and a synthetic resin for the inner box, as shown in FIG. It is comprised from the inner plate 31, and the vacuum heat insulation panel 32 as a heat insulation panel arrange | positioned in the state pinched | interposed between the outer plate 30 and the inner plate 31. The vacuum heat insulation panel 32 is bonded and fixed to the outer plate 30 and the inner plate 31 with an adhesive. For example, hot melt is used as the adhesive. As shown in FIGS. 6 to 9, the right side wall part 25 and the back wall part 26 are also basically the same as the left side wall part 24, as shown in FIGS. It is comprised from the synthetic resin inner board 31, and the vacuum heat insulation panel 32 as a heat insulation panel arrange | positioned in the state pinched | interposed between these outer boards 30 and the inner board 31. FIG.

  As shown in FIGS. 6 and 7, the ceiling wall portion 27 includes an outer plate 30 made of a metal plate for an outer box, an inner plate 31 made of a synthetic resin for an inner box, and the outer plate 30 and the inner plate 31. And a vacuum heat insulating panel 32 and a foam heat insulating material 33 as heat insulating materials. The vacuum heat insulating panel 32 is bonded and fixed to the inner plate 31 with an adhesive. The ceiling wall portion 27 is provided with a machine room 34 formed lower than the front portion at the rear portion on the upper surface side, and the rear portion of the ceiling wall portion 27 is formed lower than the front portion. In the ceiling wall part 27, the rear part which becomes a machine room formation part becomes the convex part 34a which protrudes below. The machine room 34 accommodates a compressor 35 and the like of the refrigeration cycle. The ceiling wall portion 27 is not a simple flat plate shape, but has a bent shape as described above, and also requires high strength, and therefore the vacuum heat insulating panel 32 and the foam heat insulating material 33 are used in combination. In the ceiling wall portion 27, the foam heat insulating material 33 includes a rear portion mainly forming the machine room 34, and an upper portion of the left wall portion 24, the right wall portion 25, and the back wall portion 26 to which the ceiling wall portion 27 is connected. It is arranged at the butting part.

  The bottom wall portion 28 is also basically similar to the ceiling wall portion 27, a metal plate outer plate 30 for the outer box, a synthetic resin inner plate 31 for the inner box, and the outer plate 30 and the inner plate 30. It is comprised from the vacuum heat insulation panel 32 and the foam heat insulating material 33 as a heat insulating material provided between the boards 31. FIG. The vacuum heat insulating panel 32 is bonded and fixed to the inner plate 31 with an adhesive. Also in the bottom wall portion 28, the vacuum heat insulating panel 32 and the foam heat insulating material 33 are used in combination. In the bottom wall portion 28, the foam heat insulating material 33 is mainly disposed at the abutting portion between the rear portion and the lower portion of the left wall portion 24, the right wall portion 25, and the back wall portion 26 to which the bottom wall portion 28 is connected. Has been.

  As shown in FIG. 10, the vacuum heat insulation panel 32 includes a core material 36 such as glass wool and a packaging material 37 having a gas barrier property. The vacuum heat insulation panel 32 is manufactured in a panel shape (plate shape) by housing the core material 36 in the packaging material 37 and evacuating the packaging material 37 in this state, and has excellent heat insulation performance. .

  Here, the connection structure of the left side wall part 24 and the back wall part 26 is demonstrated. As shown in FIG. 4, the corner fixture 29 that connects them extends long in the vertical direction. The corner fixture 29 is made of, for example, a synthetic resin. On the back side of the corner fixture 29, a heat insulating material 38 having a triangular prism shape (see FIGS. 8, 9, and 10) is disposed. The heat insulating material 38 is a molded product such as polystyrene foam. On both the left and right sides of the corner fixture 29, a plurality of screwed step portions 39 are provided in the vertical direction. As shown in FIG. 10, a screw insertion hole 39a is formed in each of the step portions 39. Corresponding to these step portions 39, a connecting fixture 40 is attached to the inner plate 31 of the left side wall portion 24 and the inner plate 31 of the back wall portion 26.

  The coupling fixture 40 is formed of, for example, a synthetic resin. As shown in FIGS. 10 to 12, the boss portion 40b having a screw hole 40a and upper and lower side portions at the base end portion of the boss portion 40b. And a plate-like sandwiching portion 40c provided so as to project to the outside. Each of the connecting fixtures 40 is configured so that the boss portion 40b is connected to the inner plate 31 from the back side of the inner plate 31 (the side to which the vacuum insulating panel 32 is bonded) in a state before the corresponding inner plate 31 is bonded to the vacuum insulating panel 32. It is attached to the inner plate 31 by being inserted into the hole portion 41 formed in 31 and adhering the clamping portion 40c to the back surface of the inner plate 31 with an adhesive. By adhering the vacuum heat insulating panel 32 to the back surface of the inner plate 31, the holding portions 40 c of the connecting fixtures 40 are held between the vacuum heat insulating panel 32 and the inner plate 31.

  And, when connecting the left wall portion 24 and the back wall portion 26, with the heat insulating material 38 and the corner fixture 29 applied from the storage chamber side to these corner portions, screws 42 from the storage chamber side, Screw into the screw hole 40a of each connecting fixture 40 through the screw insertion hole 39a of each step portion 39. Thereby, the left side wall part 24 and the back wall part 26 are connected and fixed via the corner fixture 29. At this time, the left wall portion 24 and the back wall portion 26 are held at a right angle by the corner fixture 29 and the heat insulating material 38. In addition, the right side wall part 25 and the back wall part 26 are also connected by the same structure as the connection structure of the left side wall part 24 and the back wall part 26 described above. As a result, the right side wall portion 25 and the back wall portion 26 are held in a state of making a right angle by the corner fixture 29 and the heat insulating material 38.

  Insulating materials 43 are provided at the rear end portions of the left side wall portion 24 and the right side wall portion 25 and the left and right end portions of the back wall portion 26 so as to cover the end portions of the corresponding vacuum heat insulating panels 32. . The heat insulating material 43 is a molded product such as a polystyrene foam.

  Next, the attachment structure of each component attached to the inner plate 31 of the left side wall portion 24 and the inner plate 31 of the right side wall portion 25 will be described on behalf of the left side wall portion 24 side. As shown in FIG. 5, the inner plate 31 of the left side wall portion 24 has two front and rear shelf receiving members 44 and 45, a partition plate mounting member 46, and a first fixing member 40, as shown in FIG. 5. A rail mounting member 47, a partition wall mounting member 48, and a second rail mounting member 49 are mounted, and are attached to the vacuum heat insulating panel 32 in a state of being integrally provided. .

  The inner plate 31 of the right side wall 25 facing the left side wall 24 is also provided with two front and rear shelf receiving members 44, in addition to the connecting fixture 40, in the same manner as the inner plate 31 of the left side wall 24. 45, a partition plate mounting member 46, a first rail mounting member 47, a partition wall mounting member 48, and a second rail mounting member 49 are mounted.

  Hereinafter, the shelf receiving members 44 and 45 attached to the left side wall portion 24, the partition plate mounting member 46, the first rail mounting member 47, the partition wall mounting member 48, and the second rail mounting. The member 49 will be described.

  First, as shown in FIGS. 13 to 16, the rear shelf receiving member 44 is formed of, for example, a metal plate, and has a rectangular substrate portion 44 a extending in the vertical direction and a plurality of four shelves in this case. The receiving projection 50 and two cut and raised pieces 51 are integrally provided. Each of the shelf receiving projections 50 has an upward bowl shape, and two shelf receiving projections 50 are arranged on the upper stage and two on the lower stage. One cut and raised piece 51 is disposed between the two upper shelf receiving projections 50, and one cut and raised piece 51 is also provided between the two lower shelf receiving projections 50. Has been placed.

  The inner plate 31 of the left side wall portion 24 is formed with two rectangular holes 52 corresponding to the rear shelf receiving member 44 in the vertical direction, and before the left side wall portion 24 is assembled, From the back surface of the inner plate 31 (the back surface when the surface in the refrigerator compartment is the front surface), the shelf receiving projections 50 and the cut and raised pieces 51 are inserted into the corresponding hole portions 52 and the front side of the inner plate 31 ( The substrate 44 a is bonded to the periphery of the hole 52 on the back surface of the inner plate 31. And the back surface of the integrated body (refer FIG. 5) of this board | substrate part 44a and the inner board 31, and the vacuum heat insulation panel 32 are adhere | attached. In the assembled state of the left side wall portion 24, the substrate portion 44a is sandwiched between the inner plate 31 and the vacuum heat insulating panel 32 (see FIGS. 14 and 15). The rear shelf receiving member 44 is disposed in the refrigerator compartment 3 of the storage room and in the vicinity of the lower part of the machine room 34 of the ceiling wall portion 27.

  The front shelf receiving member 45 is set such that the vertical length of the substrate portion 45a is set longer than the substrate portion 44a of the rear shelf receiving member 44, and the shelf receiving projection 50 has three steps in the vertical direction. Is provided. A total of six shelf receiving projections 50 are provided at two stages. The front shelf receiving member 45 is attached to the inner plate 31 in the same manner as the rear shelf receiving member 44 described above.

  In this case, the upper shelf receiving projection 50 of the front shelf receiving member 45 is arranged in front of the machine room 34 (convex portion 34a), and the middle shelf receiving protrusion 50 and the lower shelf receiving projection 45 of the front shelf receiving member 45 are arranged. The shelf receiving projections 50 are arranged so as to be arranged in front of the upper and lower shelf receiving projections 50 of the rear shelf receiving member 44. As a result, the upper shelf setting portion 53 is formed by the two upper shelf receiving projections 50 on the front side, and the two middle shelf receiving projections 50 on the front side and the two upper shelf receiving portions on the rear side. The protrusion 50 forms a middle shelf installation portion 54, and the front lower two shelf receiving projections 50 and the rear lower two shelf reception projections 50 form a lower shelf installation portion 55. ing. The depth dimensions in the front-rear direction of the middle shelf installation section 54 and the lower shelf installation section 55 are set to be the same. Further, the frontmost shelf setting portion 53 is set to have a smaller depth dimension in the front-rear direction than the middle and lower shelf setting portions 54 and 55.

  As shown in FIG. 2, a first shelf 56 (the first shelf 56 on the lower side is indicated by a two-dot chain line) is detachably installed in the middle and lower shelf installation parts 54 and 55. Further, the second shelf 57 (refer to the two-dot chain line) is also installed in the upper shelf installation unit 53. The second shelf 57 is set to have a depth dimension in the front-rear direction shorter than that of the first shelf 56. The inner plate 31 of the right side wall part 25 is also provided with shelf installation parts 53, 54 and 55 similar to the left side wall part 24.

  As shown in FIGS. 2 and 3, the partition plate mounting member 46 is positioned at a portion corresponding to the partition plate 8 that partitions between the refrigerator compartment 3 and the vegetable compartment 4, and one for the front portion and the rear portion. It is provided one by one. The partition plate mounting member 46 will be described with reference to FIGS. The partition plate mounting member 46 is made of a synthetic resin, and includes a projecting portion 46a and a sandwiching portion 46b extending vertically from the base end portion thereof. A groove 46c having a front-rear width substantially the same as the thickness of the inner plate 31 is formed between the base end portion of the protruding portion 46a and the sandwiching portion 46b.

  Further, a hole 59 is formed on the inner plate 31 side, and a slit 60 that is long in the vertical direction continuous to the hole 59 is formed on the rear side (right side in FIG. 19) of the hole 59. Yes. The edge of the slit 60 can be elastically deformed by the inner plate 31 being made of a sheet member that is relatively easy to bend.

  For attaching the partition plate mounting member 46 to the inner plate 31 of the left side wall 24, the partition 60 is partitioned with respect to the slit 60 at the front side (storage chamber side) position of the inner plate 31 before the left side wall 24 is assembled. The upper and lower clamping portions 46b of the plate mounting member 46 are inserted and moved to the hole 59 side. At this time, the clamping portion 46 b can be inserted from the slit 60 to the back side of the inner plate 31 by elastically deforming the edge portion of the slit 60. In this case, the groove 46 c of the partition plate mounting member 46 is fitted to the upper and lower edges of the hole 59. Further, in this case, the sandwiching portion 46 b is bonded to the periphery of the hole 59 of the inner plate 31 by applying an adhesive to the back surface of the inner plate 31 in advance. In this way, by inserting the partition plate mounting member 46 into the slit 60 from the front side of the inner plate 31, the protruding portion 46 a protrudes from the hole portion 59. Further, in this case, the groove 46 c of the protrusion 46 a is fitted into the hole 59, so that the partition plate mounting member 46 does not come out to the back side of the inner plate 31.

  And the back surface of the integral part of this clamping part 46b and the inner board 31 and the vacuum heat insulation panel 32 are adhere | attached. In the assembled state of the left side wall portion 24, the sandwiching portion 46 b is sandwiched between the inner plate 31 and the vacuum heat insulating panel 32. In this way, two partition plate mounting members 46 are attached to the inner plate 31 of the left side wall portion 24, and two partition plate mounting members 46 are also attached to the inner plate 31 of the right side wall portion 25, The partition plate 8 is installed on the four partition plate mounting members 46.

  The first rail mounting member 47 is provided at the front portion and the rear portion at a position corresponding to the vegetable compartment 4. The first rail mounting member 47 will be described with reference to FIGS. The first rail mounting member 47 is made of, for example, a metal plate, and includes a projecting portion 47a having a shape obtained by cutting a conical top portion, and a sandwiching portion 47b extending from the base end portion of the projecting portion 47a to the periphery. It is the composition which has. A rail mounting hole 47c is formed at the center of the tip of the protrusion 47a. Further, the holding portion 47b is formed with an engaging portion 47d having an L shape upward at one place in the upper center, and at two lower portions, engaging portions 47e are formed so as to protrude into the storage.

  The inner plate 31 is formed with a hole 61a for inserting and projecting the protrusion 47a, and an engagement hole 61b is formed at one place above the hole 61a, and at two places below. An engagement hole 61c is formed.

  For attaching the first rail mounting member 47 to the inner plate 31, before assembling the left side wall portion 24, the projecting portion 47 a is inserted into the hole 61 a from the back surface of the inner plate 31 and the front side of the inner plate 31. The upper engaging portion 47d is inserted and engaged with the upper engaging hole portion 61b, the lower engaging portion 47e is inserted and engaged with the lower engaging hole portion 61c, and the holding portion 47b is It is bonded to the back surface of the inner plate 31. In the assembled state of the left side wall part 24, the holding part 47 b is held between the inner plate 31 and the vacuum heat insulating panel 32.

  A fixed rail 62 extending in the front-rear direction is screwed to the rail mounting hole 47c of the protrusion 47a of the first and second first rail mounting members 47 by screws 62a. The fixed rail 62 guides the movement of a support frame (not shown) attached to the back side of the door 19 of the vegetable compartment 4 in the front-rear direction. FIG. 24 also shows the movable rail 63 together with the fixed rail 62. The movable rail 63 is attached to the support frame of the door 19 and moves with the door 19 in the front-rear direction with respect to the fixed rail 62. The two first rail attachment members 47 and the fixed rail 62 are also attached to the inner plate 31 of the right side wall portion 25. Accordingly, the left and right sides facing each other in the vegetable compartment 4 in the storage room are provided with a pull-out fixed rail 62 (rail) extending in the front-rear direction (see FIG. 8). FIG. 8 shows the fixed rail 62 of the main freezer compartment 7.

  The partition wall mounting member 48 is provided at a position where the heat insulating partition wall 9 is provided and extending in the front-rear direction. The partition wall mounting member 48 will be described with reference to FIGS. 25 and 26. FIG. The partition wall mounting member 48 is formed in a long shape extending, for example, in the front-rear direction as a whole from a metal plate, and has a protruding portion 48a and a clamping portion 48b extending downward from the protruding portion 48a. In addition, an engaging portion 48c is provided at the lower end of the clamping portion 48b. A plurality of slit portions 48d are formed in the protruding portion 48a along the longitudinal direction (extending in the front-rear direction). The inner plate 31 to which the partition wall mounting member 48 is attached has a slit-like hole 64a for inserting the protruding portion 48a from the back side of the inner plate 31 and the engaging portion 48c from the back side of the inner plate 31. A slit-like hole 64b for insertion is formed.

  The partition wall mounting member 48 has a projecting portion 48a and an engaging portion 48c inserted from the back side into the holes 64a and 64b of the inner plate 31 before the left side wall portion 24 is assembled, and is projected to the front side. 48b is bonded to the back surface of the inner plate 31. In the assembled state of the left side wall portion 24, the holding portion 48 b is held between the inner plate 31 and the vacuum heat insulating panel 32. The attachment strength is improved by the engagement between the engagement portion 48c and the hole portion 64b.

  And as shown in FIG. 26, the insertion part 9a (only one side is shown) of the both-ends part of the said heat insulation partition wall 9 of the partition wall attachment member 48 attached to the left side wall part 24 and the right side wall part 25, respectively. The slit portion 48d is inserted and engaged. Thereby, the heat insulation partition wall 9 is arrange | positioned so that the inside may be crossed in the heat insulation cabinet 2. FIG.

  The second rail mounting member 49 is provided at a front portion and a rear portion at a position corresponding to the main freezer compartment 7. The second rail mounting member 49 has the same configuration as the first rail mounting member 47 and is similarly mounted on the inner plates 31 of the left and right side wall portions 24 and 25. Accordingly, the left and right side surfaces facing each other in the main freezer compartment 7 in the storage room are also provided with a pull-out fixed rail 62 (rail) extending in the front-rear direction (see FIG. 8).

  In the above-described configuration, in the storage room of the heat insulation cabinet 2, for example, the main freezer room 7 shown in FIG. 8, the interval between the left side surface and the right side surface facing each other in the main freezer room 7 is the main freezer room 7. The front part and rear part are set to approximately the same size. Specifically, the horizontal dimension L1 in the front part of the main freezer compartment 7 and the horizontal dimension L2 in the rear part are set to substantially the same dimension (L1≈L2). This can be said that the draft angle of the inner plate 31 forming the inner box in the left side wall portion 24 and the right side wall portion 25 is substantially 0 degree.

  Here, the draft is, for example, as shown in FIG. 27, when the molded product A is molded, a mold (not shown) inside the molded product A is moved in the direction of the opening of the molded product A. This is the angle of inclination applied to the inner surface A1 of the molded product A when die cutting is performed in a certain arrow B direction. This draft angle θ can be expressed by the following expression (1), where C1 is the depth dimension and C2 is the displacement dimension for shifting the front opening of the inner surface A1 outward.

tan θ = C2 / C1 (1)
In this case, when the draft angle of the inner plate 31 is approximately 0 degrees, θ is ± 0.14 degrees (deg) or less. This corresponds to, for example, the case where the depth dimension C1 of the storage chamber (main freezer compartment 7) is 400 mm and the displacement dimension C2 to the outside of the front opening of the inner surface of the inner plate 31 is 1 mm or less.

  Moreover, in the above-described configuration, in the storage room of the heat insulation cabinet 2, for example, the main freezer compartment 7 shown in FIG. 8, between the fixed rails 62 provided on the left and right sides facing each other in the main freezer compartment 7. The interval is also set to approximately the same size at the front and rear of the main freezer compartment 7. Specifically, the front space dimension L3 between the fixed rails 62 and the rear space dimension L4 are set to be substantially the same.

In the embodiment described above, the following operational effects can be obtained.
The cabinet main body 2a of the heat insulation cabinet 2 is formed by a left side wall part 24, a right side wall part 25, a back wall part 26, a ceiling wall part 27, and a bottom wall part 28 that constitute a heat insulation wall. It has an open storage room (refrigeration room 3, vegetable room 4, ice making room 5, small freezer room 6, main freezer room 7). And in the cabinet main body 2a, the left side wall part 24 and the right side wall part 25 which oppose on both sides of the storage room, for example, the main freezer compartment 7, are the inner plate 31 which forms the inner surface of a storage room, and the outer surface of a heat insulation wall. A vacuum heat insulating panel 32 is bonded as a pre-formed heat insulating panel between the outer plate 30 to be formed. And the space | interval between the left side and the right side which oppose in the storage room, for example, the main freezer compartment 7, is set to the substantially same dimension by the front part and rear part of the main freezer compartment 7 (L1 of FIG. 8). , L2). As a result, there is less restriction on the design of interior items such as the fixed rail 62 in the storage room (main freezer compartment 7 etc.), and the degree of freedom of interior design can be increased.

  For example, if the space between the left and right sides facing each other in the storage room is different between the front and rear, the interior design is restricted and designed to accommodate the difference in the space. The degree of freedom may be greatly restricted. In this regard, according to the present embodiment, such a problem can be solved.

  In the storage room, for example, in the main freezer compartment 7, the left and right side surfaces facing each other are provided with drawer fixed rails 62 extending in the front-rear direction, and the spacing between the left and right fixed rails 62 is as follows. The front part and the rear part are set to substantially the same dimensions (see L3 and L4 in FIG. 8). As a result, the fixed rails 62 and the movable rails 63 moved along the fixed rails 62 do not need a taper such as a draft, so that they are less restricted by their design. The degree of freedom in designing the movable rail 63 can be increased, and more stable operation can be provided when the door 19 is opened and closed.

  The cabinet body 2a of the heat insulation cabinet 2 is formed by combining the left wall 24, the right wall 25, the back wall 26, the ceiling wall 27, and the bottom wall 28, which are separately formed. As a result, it is possible to relatively easily realize that the distance between the left side surface and the right side surface facing each other in the storage chamber is set to substantially the same size at the front portion and the rear portion of the storage chamber.

  In this case, the five wall portions 24 to 28 are not necessarily formed separately, and may be configured as follows, for example. For example, a sheet-like material is formed in which the inner plates 31 of the left wall portion 24, the rear wall portion 26, and the right wall portion 25 are integrally connected, and the vacuum heat insulating panels 32 are bonded to the back surfaces of the inner plates 31, respectively. Then, it is bent to form a U shape. Thereafter, the outer plate 30 is bonded to the outer surface of the vacuum heat insulating panel 32 of each wall portion 24, 26, 25. Thereafter, the ceiling wall portion 27 and the bottom wall portion 28 which are separately formed are assembled to the three wall portions 24, 26 and 25 having a U-shape. Even if it forms in this way, the space | interval between the left side surface and right side surface which are in a storage chamber and can oppose can be set to the substantially same dimension by the front part and rear part of a storage chamber.

  Further, for example, a sheet-like member in which the inner plates 31 of the left wall portion 24, the bottom wall portion 28, and the right wall portion 25 are integrally connected is formed, and the vacuum heat insulating panel 32 is bonded to the back surface of each of the inner plates 31. Then, it is bent to form a U shape. Thereafter, the outer plate 30 is bonded to the outer surface of the vacuum heat insulating panel 32 of each wall portion 24, 28, 25. Thereafter, the ceiling wall portion 27 and the back wall portion 26 which are separately formed are assembled to the three wall portions 24, 28 and 25 having a U-shape. Even if it forms in this way, the space | interval between the left side surface and right side surface which are in a storage chamber and can oppose can be set to the substantially same dimension by the front part and rear part of a storage chamber.

  Among the storage rooms, the refrigerator compartment 3 is formed with upper and lower three-tier shelf installation portions 53, 54, and 55, and the middle and lower shelf installation portions 54 and 55 have a first shelf as shown in FIG. A shelf 56 (the first shelf 56 on the lower side is indicated by a two-dot chain line) is detachably installed, and the second shelf 57 (see the two-dot chain line) is also provided in the upper shelf installation unit 53. Is installed. The second shelf 57 is set to have a depth dimension in the front-rear direction shorter than that of the first shelf 56.

  Here, also in the refrigerating room 3 which is one of the storage rooms of the heat insulating cabinet 2, the interval between the left side surface and the right side surface facing each other in the refrigerating room 3 is similar to that of the main freezing room 7. The front and rear portions of the chamber 3 are set to have substantially the same dimensions (see L1 and L2 in FIG. 8). Therefore, as shown by the solid line in FIG. 9, the second shelf 57 having a short depth dimension can be installed at the front of the middle and lower shelf installation portions 54 and 55 in addition to the upper shelf installation portion 53. As shown by a two-dot chain line in FIG. 9, it can also be used by being installed at the rear part of the middle and lower shelves 54 and 55.

  By the way, if the distance between the left side and the right side facing each other in the refrigerating chamber 3 is narrower than the front of the refrigerating chamber 3 due to the draft, the upper front shelf Even if the second shelf 57 formed corresponding to the installation portion 53 is to be installed at the rear of the middle and lower shelf installation portions 54 and 55, the width of the second shelf 57 is too large, and the middle shelf In addition, there is a problem that it cannot be installed and used at the rear part of the lower shelf installation parts 54 and 55. In this regard, according to the present embodiment, such a problem can be prevented.

  Further, when the first shelves 56 installed in the middle and lower shelves 54 and 55 are divided into two in the front and rear, the front divided shelves installed in front of these shelves 54 and 55 Can be installed at the rear part of the shelf installation units 54 and 55, and the rear divided shelf can be installed at the front part of the shelf installation units 54 and 55.

(Second Embodiment)
FIG. 28 shows a second embodiment. The second embodiment differs from the first embodiment described above in the means for maintaining the right angle between the left side wall portion 24 and the back wall portion 26 and between the right side wall portion 25 and the back wall portion 26. ing. Specifically, the left and right end portions (only the left end portion is shown in FIG. 28) of the inner plate 31 in the back wall portion 26 are integrally formed with a protruding portion 70 that protrudes forward on the storage chamber side. The protrusion 70 has a right triangle shape when viewed from above. An end portion 71 of the inner plate 31 in the inner wall portion 26 is directed rearward and is brought into contact with an inner surface of the outer plate 30 in the inner wall portion 26 via a seal member 72. Inside the protruding portion 70, for example, a triangular prism-shaped heat insulating material 73, which is a molded product of polystyrene foam, is accommodated.

  A positioning convex portion 74 that protrudes to the right, which is the storage chamber side, is provided at the rear portion of the inner plate 31 in the left side wall portion 24, and the rear surface of the positioning convex portion 74 is brought into contact with the front end portion of the protruding portion 70. Touching. The rear end portion 75 of the inner plate 31 in the left side wall portion 24 is directed to the left side and is brought into contact with the inner surface of the outer plate 30 in the left side wall portion 24 via a seal member 76. Although not shown, a configuration similar to the above is also provided between the back wall portion 26 and the right wall portion 25.

  Also in the second embodiment having such a configuration, the left wall 24, the right wall 25, and the back wall 26 can be held at a right angle, and the left wall 24 and the right wall 25 are held in a parallel state. can do. Thereby, in the storage chamber formed between the left side wall portion 24 and the right side wall portion 25, the distance between the left side surface and the right side surface facing each other is substantially the same between the front portion and the rear portion of the storage chamber. The same operational effects as those of the first embodiment can be obtained.

(Other embodiments)
The heat insulation panel used for the heat insulation wall of the cabinet body 2a is not limited to the vacuum heat insulation panel 32, and may be, for example, a molded product of polystyrene foam as long as it is molded in advance.

The heat-insulating cabinet is not limited to a refrigerator, and can be used as a thermostat cabinet, a freezer showcase, or other constant temperature cabinet.
Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  As described above, according to the heat insulation cabinet of the present embodiment, the distance between the left side surface and the right side surface facing each other in the storage room can be set to be substantially the same between the front part and the rear part. The degree of freedom in designing the interior can be increased.

  In the drawings, 1 is a refrigerator, 2 is a heat-insulating cabinet, 2a is a cabinet body, 3 is a refrigerator room (storage room), 4 is a vegetable room (storage room), 5 is an ice making room (storage room), and 6 is a small freezer room ( (Storage room), 7 is a main freezing room (storage room), 24 is a left side wall part (heat insulation wall), 25 is a right side wall part (heat insulation wall), 26 is a back wall part (heat insulation wall), 27 is a ceiling wall part ( Heat insulation wall), 28 is a bottom wall portion (heat insulation wall), 29 is a corner fixture, 30 is an outer plate, 31 is an inner plate, 32 is a vacuum heat insulation panel (heat insulation panel) 53, 54 and 55 are shelf installation portions, 56 Denotes a first shelf, 57 denotes a second shelf, 62 denotes a fixed rail (rail), and 63 denotes a movable rail (rail).

Claims (4)

A cabinet body having a storage room formed by a heat insulating wall and having a front surface opened inside,
The left side wall and the right side wall facing the heat insulation wall of the cabinet body across the storage chamber are respectively an inner plate that forms the inner surface of the storage chamber and an outer plate that forms the outer surface of the heat insulation wall. In between, it is constructed by adhering a pre-formed heat insulation panel,
The heat-insulating cabinet according to claim 1, wherein a distance between a left side surface and a right side surface facing each other in the storage room is set to be substantially the same at a front part and a rear part of the storage room.   In the storage chamber, left and right side surfaces facing each other are provided with drawer rails extending in the front-rear direction so as to be opposed to each other, and the distance between the left and right rails is substantially the same at the front and rear. The heat insulation cabinet according to claim 1, wherein   The said cabinet main body is formed by combining the left side wall part, the right side wall part, the back wall part, the ceiling wall part, and the bottom wall part which are formed separately, respectively. Insulated cabinet as described. Shelf installation part provided on the left side and the right side facing the storage room,
A depth dimension in the front-rear direction is set corresponding to a depth dimension of the shelf installation unit, and a first shelf that can be installed in the shelf installation unit;
A second shelf whose depth dimension in the front-rear direction is set shorter than the first shelf,
The heat insulation cabinet according to any one of claims 1 to 3, wherein the second shelf is configured to be installed at a front part and a back part of the shelf installation part.

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