JP6275530B2 - Cooling storage - Google Patents

Description

  The present invention relates to a cooling storage compartment that is partitioned into a plurality of storage chambers by providing a partition wall in a heat insulating box.

  Conventionally, the thing of the following patent document 1 is known as a refrigerator-freezer which is an example of this kind of cooling storage. This is done by attaching a partition wall to a heat insulating box body with a front opening formed by filling a heat insulating material in an outer shell body in which an outer box and an inner box made of metal plates are arranged at intervals. It has a structure in which a refrigerator compartment and a freezer compartment are partitioned on both sides of the wall. And in the part where the end surface of the partition wall is applied to the inner surface such as the back surface or the bottom surface of the heat insulation box, a structure in which the seal material is applied to the end surface of the partition wall and then applied to the predetermined inner surface of the heat insulation box Therefore, it is designed to prevent leakage of cold air.

JP-A-9-72652

However, in the above-mentioned conventional one, even if the sealing material affixed to the end face of the partition wall is applied to the inner surface of the heat insulation box, there is still a possibility that cold air leakage may still occur due to partial gaps, etc. Since the metal plate constituting the inner surface is a so-called single piece continuous across the refrigerator compartment and the freezer compartment, leakage of cold air due to heat conduction could not be ignored.
The present invention has been completed based on the above circumstances, and an object of the present invention is to more reliably prevent cold air leakage between adjacent storage rooms.

  The present invention relates to a heat insulating box body having a front opening formed by foaming and filling a heat insulating material in an outer shell body in which an outer box and an inner box made of metal plates are spaced apart, and a plurality of storage chambers in the heat insulating box body. A partition wall mounted in the heat insulation box to form a partition, and an L formed between two orthogonal inner surfaces of the heat insulation box to fit two end portions of the partition wall orthogonal to each other. A concave surface having a L-shape, and the concave surface is formed by dividing the metal plate constituting the inner box across two surfaces orthogonal to each other, and having both L-shaped split edges. In the meantime, there is provided a closing member that is formed by interposing a synthetic resin-made interposition member, and is installed by closing the gap formed at the corner of each divided edge from the back side. It has a characteristic where it exists.

By fitting the ends of the two sides of the partition wall into the L-shaped concave surface provided on the inner surface of the heat insulation box, it is possible to prevent a gap from being formed between the inner surface and the cold air leakage due to circulation along the inner surface. In addition, a synthetic resin intervening member is interposed in the middle of the concave surface to insulate, thereby preventing cold air leakage due to heat conduction, and as a result, preventing cold air leakage between adjacent storage chambers more reliably. be able to.
In the split edge that forms the L-shape that constitutes both side edges of the concave surface, there is a gap at the corner, but the gap can be closed from the back side by the closing member, so foamed resin is used in forming the heat insulation box. Leakage is prevented.

The following configuration may also be used.
(1) While each said division | segmentation edge in the said metal plate is formed in the level | step difference shape bent at right angles twice to the back surface side and the other party side, the said interposed member is the both-sides edge of the main-body part which makes | forms a strip | belt shape Further, the projecting plates projecting in the directions corresponding to each other at the divided end edges are provided with an insertion groove into which the projecting plate can be elastically clamped, and the closing member is inserted into the insertion groove of the interposition member A sandwiched plate that is elastically sandwiched is provided. The closing member is attached by inserting a sandwiched plate into an insertion groove provided in the interposition member and elastically holding it.

(2) The said closing member is the shape by which the said to-be-clamped board was protruded and formed in the 2 edge which mutually orthogonally crossed in the closing board which block | closes the said clearance gap of the said dividing edge, respectively.
(3) In the closing member, a pair of closing plates that close the gaps of the dividing edges are arranged with a space therebetween, and between the two edges of the respective closing plates that are orthogonal to each other. The closing plates are connected to each other by passing the connecting plate, and the sandwiched plate is formed to project at a right angle to the other end edge of each closing plate. The number of parts can be reduced and the mounting operation is simplified.

(4) The partition wall is arranged in a posture in which a pair of partition plates made of a metal plate having a shallow plate shape with a side plate raised at the periphery face each other with a predetermined interval through a spacer made of a heat insulating material. The outer shell body is formed by foaming and filling the outer shell body with a heat insulating material, and at the corner of the outer shell body, between the side plates of the partition plates. The connecting member having heat insulation is passed and fixed.
The corners of the outer shell body are reinforced with the connecting member, so that the shape maintaining property of the outer shell body is improved, and as a result, a partition wall having a normal dimension and a normal shape can be formed. Moreover, since a connection member has heat insulation, the heat conduction between both partition plates is suppressed.

(5) The connecting member is formed by winding a sponge tape around the outer periphery of a metal angle member.
(6) The connecting member is made of synthetic resin.

  According to the present invention, it is possible to more reliably prevent cold air leakage between adjacent storage chambers, and it is possible to prevent foam leakage when the heat insulating box is formed.

Front view of the refrigerator-freezer according to Embodiment 1 of the present invention. Front view with the door removed Disassembled perspective view of the main body Disassembled perspective view of inner box The perspective view which shows the formation part of the concave surface in an inner box Enlarged sectional view of the concave part Perspective view of closure member The perspective view which shows mounting | wearing operation | movement of a closure member Perspective view when installation is complete The perspective view which shows mounting | wearing operation | movement of the closure member which concerns on Embodiment 2. FIG. Perspective view when installation is complete Explanatory drawing showing detection operation for presence / absence of misassembly The perspective view of the partition wall which concerns on Embodiment 3. Same part cutaway front view Perspective view of connecting member Cross-sectional side view Side view of outer shell Enlarged view of part X in FIG. YY sectional view of FIG. The front view of the connection member concerning Embodiment 4. Partial enlarged front view showing the structure of the mounting portion of the connecting member

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a four-door refrigerator-freezer is illustrated.
The schematic structure of the refrigerator-freezer will be described with reference to FIGS. 1 to 3. A machine room 11 is provided on the upper surface of a main body 10 having a storage chamber inside, and is supported by legs 12 provided at four corners of the bottom surface of the main body 10. Yes.
The main body 10 has a vertically long rectangular heat insulating box 15 having an open front surface, and the heat insulating box 15 is partitioned by a heat insulating partition wall 20 at an intermediate position in the frontage direction. A refrigerator compartment 22R and a freezer compartment 22F are formed on the left and right sides of the wall. An attachment opening 23 for attaching a refrigeration unit (not shown) is formed in the ceiling wall of each of the refrigerator compartment 22R and the freezer compartment 22F. A heat insulating partition frame 25 assembled in a cross shape is attached to the front opening 16 of the heat insulation box 15, and four doorways 26 are defined. Each doorway 26 is provided with a pair of heat insulating doors 27 on the upper side and the lower side so as to be able to swing open and close in a double door manner.

The heat insulation box 15 is formed by foaming and filling a heat insulating material (not shown) made of foamed resin such as urethane foam resin in the outer shell 30.
As shown in FIG. 3, the outer shell 30 includes an outer box 31 and an inner box 32, both of which are assembled with a metal panel such as a stainless steel plate. The outer box 31 is formed in a large square box shape with a front opening, while the inner box 32 has a small square box shape with a front opening slightly smaller than the outer box 31 as described in detail later. Is formed.
Between the opening edges of the four sides in the outer box 31 and the inner box 32, a synthetic resin decorative board 33 is mounted and closed, and this decorative board 33 is closed by the front opening of the heat insulating box 15. 16 constitutes a peripheral surface of four sides.

The structure of the mounting portion of the partition wall 20 will be described. The partition wall 20 is heat-insulating, and a pair of rectangular shallow plate-shaped partition plates 35 made of a metal plate such as a stainless steel plate are opposed to each other with a predetermined interval through a spacer 37 made of a heat insulating material. The outer shell body 38 is formed by assembling, and the outer shell body 38 is formed by foam filling with a heat insulating material.
As shown in FIG. 3, the partition wall 20 has a thickness dimension comparable to the thickness of the heat insulation box body 15, a height dimension comparable to the height in the heat insulation box body 15, and the heat insulation box body. It is formed in a vertically long thin rectangular parallelepiped shape having a depth dimension comparable to 15 depths.

  On the other hand, the bottom surface 15A and the back surface 15B of the inner surface of the heat insulation box 15 are concave surfaces into which the lower end portion and the back end portion of the partition wall 20 are respectively closely fitted in the middle position in the frontage direction. 70 is formed in an L shape as a whole. As will be described later, the concave surface 70 is formed together with assembling the inner box 32 in the heat insulating box 15.

  As shown in FIG. 4, the inner box 32 includes a bottom panel 41 made of a metal plate, a back panel 42, left and right side panels 43, and a top panel 44. The bottom panel 41 and the back panel 42 are further divided into left and right. The bottom panel 41 and the back panel 42 on the left side (refrigeration room 22R side) of the same figure are respectively left bottom panel 41R and the left back panel 42R, and the bottom panel 41 on the right side (freezer room 22F side) as appropriate. The back panel 42 is referred to as a right bottom panel 41F and a right back panel 42F, respectively.

The assembly structure of the inner box 32 will be described. As shown in FIG. 8, as shown in FIG. 8, rising portions 45 are formed by right-angle bending in a form in which R portions 45 </ b> A are provided at the corners on the left and right side panels 41 </ b> R and 41 </ b> F. A connecting flange 46 is formed at the end edge of 45 by being bent outward at a right angle.
Similarly, rising portions 45 are formed on the outer side edges of the left and right rear panels 42R and 42F by right-angle bending in a form in which R portions 45A are provided at the corners. 46 is formed by bending it outward at a right angle. On the other hand, coupling flanges 46 are formed at right and left edges of the left and right back panel 42 by being bent at right angles to the outside.
At both the upper and lower edges and the rear edge of the left and right side panels 43, coupling flanges 46 are formed by being bent at right angles to the outside.

In assembling the inner box 32, the rear edge and the left and right side edges of the top panel 44 are respectively connected to the coupling flange 46 on the upper edge of the rear panel 42 and the coupling flange 46 on the upper edge of the left and right side panels 43. While being overlapped, the coupling flange 46 at the rear edge of the left and right bottom panels 41R, 41F and the coupling flange 46 at the outer side edge are coupled to the coupling flange 46 at the lower edge of the left and right rear panel 42R, 42F and the left and right side panels. 43, overlapped with the coupling flange 46 on the lower edge of the left and right side panels 42R and 42F, and the coupling flange 46 on the outer side edge of the left and right side panels 42F and the coupling flange 46 on the rear edge of the left and right side panels 43, Fasteners 47 are fitted and connected to each overlapping portion, so that the inner box 32 having the front opening is assembled.
For example, the fastener 47 is an extruded product of a synthetic resin material such as PVC (polyvinyl chloride), and is formed in a band shape having a U-shaped cross section, and is fitted into an overlapping portion such as the coupling flange 46 as described above. It functions to elastically pinch and join the overlapping portions.

The formation structure of the concave surface 70 will be described. As shown in FIG. 6, the divided edge 50 of the left and right bottom panels 41R and 41F and the divided edge 50 of the left and right back panels 42R and 42F are respectively separated into the back side and the other side. It is bent at a right angle to form a step (hereinafter, step edge 51).
A plurality of bosses 53 are formed on the back surfaces of the projecting plates 52 facing each other at each step edge 51 by knocking out at predetermined intervals along the length direction.

Intervening members 60 are mounted between the step edge 51 of the left and right bottom panels 41R and 41F and between the step edge 51 of the left and right back panel 42R and 42F. Hereinafter, when distinguishing the interposed member 60 arranged on the bottom panel 41 side and the back panel 42 side, the description will be given as the interposed member 60A and the interposed member 60B.
The interposition member 60 is formed by extrusion molding of a synthetic resin material, and includes a main body plate 61 having a flat band shape. The width of the main body plate 61 is set to be the same as the width of the concave surface 70 to be formed. Yes. A support rib 62 is formed on the back surface of the main body plate 61 so as to protrude at the center width position. A pair of locking plates 63 having a locking portion 64 at the tip edge are parallel to the main body plate 61. It is provided to be elastically displaceable in a back-to-back posture. An insertion groove 65 into which the projecting plates 52 facing each other at the step edge 51 is inserted is formed between the main body plate 61 and the locking plate 63. The locking portions 64 are formed by being bent at right angles at the front end portions of the respective locking plates 63 until reaching the back surface of the main body plate 61, and obliquely spaced from the main body plate 61 from the front ends of the locking portions 64. A guide portion 66 is formed in a posture.

In forming the concave surface 70, the projecting plates 52 facing each other of the step edge 51 formed on the divided edge 50 of the left and right bottom panels 41R and 41F are inserted into the insertion grooves 65 on the left and right sides of the interposition member 60A. Inserted into. The protruding plate 52 is inserted between the locking portion 64 and the main body plate 61 by elastically displacing the locking plate 63 after the boss 53 on the back side of the protruding plate 52 is guided by the guide portion 66. When the abutting plate 54 of each step edge 51 is pushed to the normal position where it hits each side edge of the main body plate 61, the boss 53 passes through the locking portion 64 and is restored and displaced. When the boss 53 is locked to the portion 64 and is prevented from coming off, a laterally-facing concave surface 70A is formed as shown in FIG.
In the same manner as described above, the interposition member 60 is mounted between the step edges 51 of the left and right back panel 42, thereby forming a vertically-facing concave surface 70B. Here, as shown in FIG. 8, the lower end of the vertically interposed member 60B is set on the back end of the horizontally interposed member 60A.

As described above, by forming the horizontal concave surface 70 and the vertical concave surface 70B, as shown in FIG. 5, the concave surface 70 having an L shape extending from the bottom surface 15A to the back surface 15B of the heat insulation box 15. Is formed.
Here, as shown in FIG. 5, the left and right side surfaces of the concave surface 70 are step edges having an L-shape formed from the dividing edge 50 of the bottom panel 41 to the dividing edge 50 of the back panel 42. Since each step edge 51 is formed by being bent twice at the dividing edge 50 of the bottom panel 41 and the dividing edge 50 of the back panel 42, each step edge 51 is formed. In particular, it is difficult to form the step edge 51 at the dividing edge 50 of the rising portion 45 having the R portion 45A provided at the back edge of the left and right bottom panel 41. As a result, a gap S is unavoidably formed at the corner of the step edge 51 that forms the left and right L-shapes.

Therefore, in the present embodiment, as shown in FIGS. 7 to 9, two closing members 80 are provided to close the left and right gaps S described above.
Each closing member 80 is formed by pressing a metal plate, and two are formed in the same shape. The closing member 80 includes a closing plate 81 that fits in the gap S and closes the gap S. In detail, the closing plate 81 is formed by notching a relief portion 82 of approximately ¼ circle in which a corner portion R of the rising portion 45 is fitted and released at one corner of a square as shown in FIG. In addition, a C surface 83 is formed at the diagonal corners.
A sandwiching plate 84 is formed to extend at right angles from two edges adjacent to each other across the C surface 83 of the closing plate 81 across the entire width. As shown in FIG. 9, the sandwiched plate 84 can be inserted into the insertion groove 65 of the interposed member 60 mounted to form the concave surface 70, and the interposed member 60 is interposed between the sandwiched plates 84. An escape groove 85 is formed in which the main body plate 61 is fitted and escaped.

As will be described later, the partition wall 20 is fitted with an L-shaped concave surface 70 extending from the bottom surface 15A to the back surface 15B of the heat insulation box 15 at the lower end portion and the rear end portion. In the partition wall 20 having a height comparable to the height in the heat insulation box 15, a gap is formed between the upper surface of the partition wall 20 and the ceiling surface of the heat insulation box 15.
Therefore, as shown in FIG. 3, a heat insulating wall 75 formed by sandwiching a heat insulating material 77 between a pair of left and right side plates 76 is mounted so as to close the gap.

The present embodiment has the above-described structure, and an example of a procedure for manufacturing the main body 10 will be described.
As shown in FIG. 4, the bottom panel 41, the back panel 42, the left and right side panels 43, and the top panel 44 are assembled and joined together with fasteners 47, thereby forming an inner box 32 having a rectangular box shape with a front opening. Is formed. At that time, as shown in FIG. 5, a transverse concave surface 70 is formed by mounting the interposition member 60 </ b> A between the step edge 51 formed on the divided edge 50 of the left and right bottom panels 41 </ b> R and 41 </ b> F. At the same time, the interposition member 60B is mounted between the step edges 51 of the left and right back panel 42R, 42F, thereby forming a vertically-facing concave surface 70B. As a result, the bottom panel 41 from the bottom panel 41 of the inner box 32 is formed. A concave surface 70 having an L-shape is formed over 42. At this time, as described above, the gap S is formed at the corner portion of the L-shaped step edge 51 formed from the dividing edge 50 of the bottom panel 41 to the dividing edge 50 of the back panel 42. It is in a ready state.

Therefore, subsequently, the closing member 80 is mounted from the back side so as to close the gap S. Specifically, as shown in FIG. 8, the closing plate 81 closes the gap S, and the insertion groove 65 at the back end of the interposition member 60 </ b> A in which the horizontal holding plate 84 is mounted horizontally is inserted into the vertical covering member. The sandwiching plate 84 is pushed against the elastic force of the locking plate 63 into the insertion groove 65 at the lower end of the interposition member 60 </ b> B mounted vertically.
The closing member 80 is pushed in such a way that the escape portion 82 of the closing plate 81 extends along the R portion 45A at the base of the rising portion 45, and the lower end portion of the main body plate 61 of the vertically interposed member 60B is escaped into the groove 85. As shown in FIG. 9, when the closing plate 81 hits the side edge of the main body plate 61 in the interposition members 60A and 60B, the pushing is stopped, and both sandwiched plates 84 are engaged with the main body plate 61 of the interposition members 60A and 60B. It is held by being elastically sandwiched between the plate 63. At this time, the closing plate 81 of the closing member 80 is fitted and closed from the back side in the gap S formed at the corner of the step edge 51 having an L shape.
Thus, the formation of the inner box 32 is completed.

The outer box 31 is formed in a rectangular box shape with a front opening that is slightly larger than the inner box 32, and the inner box 32 is fitted into the outer box 31 with a predetermined interval. A synthetic resin decorative board 33 is mounted between the opening edges of the sides and closed. Thereby, the outer shell 30 is formed.
The formed outer shell 30 is set in a foaming jig, and the heat insulation box 15 is formed by foaming and filling the outer shell 30 with a heat insulating material made of foamed resin. At this time, since the gap S formed at the corners on the left and right side surfaces of the L-shaped concave surface 70 formed in the inner box 32 is closed from the back side by the closing member 80, leakage of the foamed resin is prevented. .

When the heat insulation box 15 is thus formed, a partition wall 20 formed in advance in the heat insulation box 15 is attached. The partition wall 20 is fitted into an L-shaped concave surface 70 formed from the bottom surface 15 </ b> A to the back surface 15 </ b> B of the inner surface of the heat insulation box 15, and the inside of the heat insulation box 15. It is mounted so as to be divided into left and right.
Subsequently, the heat insulating wall 75 is attached to close the gap between the upper surface of the partition wall 20 and the ceiling surface of the heat insulating box 15.
Thereafter, the manufacture of the main body 10 is completed, for example, by attaching a heat insulating partition frame 25 having a cross shape to the front opening 16 of the heat insulating box 15.

In the refrigerator-freezer including the main body 10 manufactured in this way, the cold air generated by the refrigeration unit is individually circulated and supplied at the time of operation, so that the refrigerator compartment 22R and the refrigerator compartment 22F are cooled to different temperatures. Is done.
Here, when the inside of the heat insulation box 15 is partitioned into a freezer compartment 22R and a freezer compartment 22F having different cooling temperatures by the partition wall 20 mounted later, the partition wall 20 has a space between the two chambers 22R and 22F, particularly in the peripheral portion. There is a risk of cold air leakage.

Of the inner surface of the heat insulation box 15, the bottom surface 15 </ b> A and the back surface 15 </ b> B are fitted with L-shaped concave surfaces 70 formed from the bottom surface 15 </ b> A to the back surface 15 </ b> B. Therefore, since the gap is substantially closed by adopting the labyrinth structure, it is possible to prevent cold air leakage due to circulation along the bottom surface 15A and the back surface 15B. Further, since the synthetic resin interposition member 60 is interposed in the middle of the concave surface 70 to achieve heat insulation, it is possible to prevent cold air leakage due to heat conduction.
Also in the ceiling portion, since the heat insulating wall 75 is installed in the gap formed between the upper surface of the partition wall 20 and the ceiling surface of the heat insulating box 15, cold air leakage is minimized.

  According to the present embodiment, the concave surface 70 having an L shape is formed from the bottom surface 15 </ b> A to the back surface 15 </ b> B of the heat insulation box 15, and the lower end portion and the rear end portion of the partition wall 20 are fitted to the concave surface 70. Therefore, the cold air leakage due to the flow along the inner surface extending from the bottom surface 15A to the back surface 15B is prevented, and a synthetic resin interposition member 60 is interposed in the middle of the concave surface 70 for heat insulation. Thus, cold air leakage due to heat conduction is also prevented, and as a result, cold air leakage between the refrigerator compartment 22R and the freezer compartment 22F is effectively prevented.

  In addition, in the L-shaped split edge 50 that forms both side surfaces of the L-shaped concave surface 70, a gap S is formed in the corner portion because the step edge 51 is bent. When forming 15, it is necessary to take measures to prevent leakage of the foamed resin from the gap S. As a means to prevent leakage, it may be possible to apply a tape, but it is difficult to reliably seal it, and it may be possible to devise a bent shape in order to reduce the gap S itself, but this increases the number of bending steps and increases the cost. There is concern about inviting.

On the other hand, in the present embodiment, a structure is provided in which a closing member 80 is separately provided and the closing member 80 is attached by closing the gap S between the corners of the dividing edge 50 from the back side at the end of assembly of the inner box 32. This prevents the foamed resin from leaking when the heat insulating box 15 is formed. That is, it is possible to reliably prevent the foamed resin leakage from the gap S only by adding a simple operation such as mounting the closing member 80.
The operation of mounting the closing member 80 is simple because it is only necessary to insert the sandwiched plate 84 into the insertion groove 65 of the interposed member 60. Since the closing plate 81 fits into the gap S and is flush with the abutting plate 54 (see FIG. 6) of the step edge 51, the mounting completion form of the closing member 80 is visually confirmed. be able to.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the shape of the closing member 80A is changed.
The closing member 80A is similarly formed by pressing a metal plate, and generally has a shape in which the pair of closing members 80 shown in the first embodiment are connected and integrated. More specifically, as shown in FIG. 10, the two closing plates 81 covering the gaps S at the corners of the dividing edge 50 have a predetermined interval (comparable to the width dimension of the main body plate 61 of the interposed member 60). The connecting plate 87 is passed between the inner edges of the two closing plates 81 and integrated. A plurality of through holes 88 are opened in the connecting plate 87 in order to reduce thermal conductivity. On the other hand, the sandwiched plate 84 inserted into the insertion groove 65 of the interposed member 60 is formed only at the lower edge of each closing plate 81.

  The closing member 80A is similarly mounted from the back side at the end of the assembly process of the inner box 32. Specifically, as shown in FIG. 10, the closing member 80 </ b> A is engaged with the sandwiched plate 84 of each closing plate 81 from the end surface side in the left and right insertion grooves 65 at the back end of the interposed member 60 </ b> A mounted sideways. It is pushed against the elastic force of the stop plate 63. As shown in FIG. 11, the closing member 80A stops being pushed when the connecting plate 87 hits the back surface of the lower end portion of the vertically interposed member 60B, and each sandwiched plate 84 is connected to the body plate 61 of the interposed member 60A. It is held by being elastically sandwiched between the locking plate 63. At this time, the left and right gaps S formed at the corners of the L-shaped step edge 51 are closed from the back side by the respective closing plates 81 of the closing member 80A. Thereby, the foaming resin leakage at the time of manufacture of the heat insulation box 15 is prevented.

Since the closing member 80A of the present embodiment is a single member, it can contribute to the reduction of the number of parts, and the mounting operation can be simplified. By mounting the closing member 80A, it is possible to firmly maintain the coupling state of the interposition member 60 with the opposed step edge 51 sandwiched from both sides.
The closing member 80A can also be used to detect whether the inner box 32 is misassembled. As described above, in the structure of the portion that forms the L-shaped concave surface 70, as shown in FIG. 10, the lower end of the vertically interposed member 60B is placed on the back end of the horizontally interposed member 60A. (Regular structure).

As shown in FIG. 12 (A), if the regular structure is adopted, the closing member 80A has the sandwiched plate 84 of each closing plate 81 being inserted into the left and right insertion grooves 65 of the laterally interposed member 60A. , Can be installed properly.
On the other hand, as shown in FIG. 12 (B), when the non-regular structure in which the lower end of the vertically interposed member 60B is applied to the back end surface of the horizontally interposed member 60A, the closing member 80A is The sandwiched plate 84 of each closing plate 81 is obstructed by the lower end portion of the vertically interposed member 60B and cannot be inserted into the left and right insertion grooves 65 of the horizontally interposed member 60A. Thereby, the misassembly of the inner box 32 is detected.

<Embodiment 3>
A third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the structure of the partition wall 20A is modified.
As described above, the partition wall 20 illustrated in the first embodiment has a pair of partition plates 35 made of a metal plate having a shallow plate shape with a side plate 36 raised at the periphery, and a spacer 37 made of foam steel. The outer shell body 38 is formed by assembling in a posture facing each other with a predetermined interval between them, and is set in a foaming jig in a form in which a seal tape 39 (see FIG. 13) is attached to the side surface of the outer shell body 38. The outer shell 38 is filled with a heat insulating material to form a thin rectangular parallelepiped shape.
In forming the partition wall 20 as described above, the thickness depends on how the spacers 37 are crushed when the outer shell 38 is set in the foaming jig, and there is a risk of variations. Further, there is a concern that the partition plates 35 move in the direction along the plate surface after the partition wall 20 is formed, and the rectangular parallelepiped is distorted obliquely. The partition wall 20A of the third embodiment has been devised to eliminate the above problems.

The structure of the partition wall 20A of this embodiment will be described again. The partition wall 20A is arranged at four corners of the outer shell body 38 in addition to a pair of metal plate-like partition plates 35 each having a side plate 36 raised at four peripheral edges and three spacers 37 made of foam steel. The connecting member 90 is provided.
As shown in FIGS. 15 and 16, the connecting member 90 includes a metal angle member 91, and rivet holes 93 are opened at both ends of plate members 92 orthogonal to each other of the angle member 91. ing. Further, a stepped portion 94 struck outward is formed at the center portion of each plate portion 92, and a window hole 95 is opened in the stepped portion 94, which is reinforced for the purpose of reducing the weight. ing. A thick sponge tape 96 is wound around the outer periphery of the angle member 91.
On the other hand, as shown in FIG. 18, rivet holes 36A are opened at both ends of the four side plates 36 in each partition plate 35, respectively.

  The partition wall 20A is manufactured as follows. A pair of partition plates 35 are assembled in a posture facing each other at a predetermined interval with a spacer 37 disposed between the left and right side edges and the upper edge in the center in the length direction to form an outer shell 38. Is done. At the same time, connecting members 90 are attached to the four corners of the outer shell 38. Specifically, as shown in FIGS. 18 and 19, the two plate portions 92 of the connecting member 90 are applied to the back surface of the side plate 36 constituting the four corners of the outer shell 38 with the rivet holes 93 and 36 </ b> A aligned with each other. When the rivets 98 are driven at four locations, the side plates 36 of the opposing partition plates 35 are connected to each other by the connecting members 90 at the four corners, thereby forming the outer shell body 38 having excellent shape maintainability. The

The outer shell body 38 is set on a foaming jig in a form in which seal tapes 39 are pasted on both the left and right surfaces and the lower surface, and the outer shell body 38 is filled with a heat insulating material to form a thin rectangular parallelepiped. It is formed.
Here, the outer shell body 38 has excellent shape maintainability because the connecting members 90 are mounted at the four corners, and the interval between the partition plates 35 is constant even when set in the foaming jig. As a result, a partition wall 20A having a constant thickness is obtained. Moreover, it is prevented that both the partition plates 35 shift | deviate in the direction along a plate surface after formation of the partition wall 20A, and it maintains with a regular rectangular parallelepiped shape.
Since the connecting member 90 is wound with the sponge tape 96 and has a heat insulating property, heat conduction between the partition plates 35 is suppressed.

<Embodiment 4>
20 and 21 show the fourth embodiment. In Embodiment 4, the other connection member 100 which functions in order to ensure the shape maintenance of the outer shell 38 of the partition wall 20A is illustrated.
As shown in FIG. 20, the connecting member 100 is formed in a slightly thick band plate shape with a hard resin. Rivet holes 101 are opened at both ends of the connecting member 100. Then, as shown in FIG. 21, at the four corners of the outer shell 38, two connecting members 100 are transferred to the back surface of the side plate 36 of the facing partition plate 35 and fixed by rivets 98.
Similarly, it is possible to form the outer shell body 38 that is reinforced with the connecting member 100 and has excellent shape maintenance, and since the connecting member 100 is made of synthetic resin and has heat insulation properties, the space between the partition plates 35 can be reduced. It can contribute to suppressing heat conduction.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The closing member illustrated in the first and second embodiments may be made of synthetic resin.
(2) In the above embodiment, the case where the concave surfaces are formed on the bottom surface and the back surface of the inner surface of the heat insulating box is illustrated, but the concave surface may be formed on the ceiling surface. Further, the present invention can be similarly applied to a structure in which an L-shaped concave surface is formed from the back surface to the ceiling surface.
(3) The refrigerator compartment and the freezer compartment may be vertically partitioned by a partition wall having a horizontal posture, and in that case, on the rear surface of the heat insulation box and the left and right side surfaces A concave surface may be formed.
(4) The present invention is not limited to a refrigerator-freezer, and can be widely applied to all cooling storages in which two or more storage rooms having different cooling temperatures are partitioned by a partition wall.

  DESCRIPTION OF SYMBOLS 15 ... Thermal insulation box 15A ... Bottom 15B ... Back surface 16 ... Front opening 20, 20A ... Partition wall 30 ... Outer shell body 31 ... Outer box 32 ... Inner box 35 ... Partition plate 36 ... Side plate 38 ... Outer shell body 37 ... Spacer 41, 41R, 41F ... bottom panel 42, 42R, 42F ... back panel 50 ... dividing edge 51 ... step edge 60, 60A, 60B ... interposition member 61 ... main body plate 63 ... locking plate 65 ... insertion groove 70, 70A, 70B ... concave surface 80, 80A ... closing member 81 ... closing plate 84 ... sandwiched plate 87 ... connecting plate 90 ... connecting member 91 ... angle material 96 ... sponge tape 98 ... rivet 100 ... connecting member S ... gap

Claims (7)

A heat-insulating box body having a front opening formed by foaming and filling a heat-insulating material in an outer shell body in which an outer box and an inner box made of metal plates are spaced apart from each other, and the heat-insulating box body are partitioned into a plurality of storage chambers. A partition wall mounted in the heat insulation box, and an L-shaped concave surface formed over two mutually perpendicular inner surfaces of the heat insulation box to fit two end portions of the partition wall perpendicular to each other. And provided,
The concave surface is formed by a synthetic resin intervening member between both divided edges forming an L-shape formed by dividing the metal plate constituting the inner box across two surfaces orthogonal to each other. It is formed by being interposed,
A cooling storage, wherein a closing member is provided to close and install a gap formed at a corner of each divided edge from the back side. While each said dividing edge in the said metal plate is formed in the level | step difference shape bent at right angles to the back surface side and the other party side twice,
The interposition member has a shape in which insertion grooves are provided on both side edges of the belt-shaped main body portion so that protruding plates protruding in directions corresponding to each other at the divided end edges can be elastically sandwiched,
The cooling storage according to claim 1, wherein the closing member is provided with a sandwiched plate that is inserted into the insertion groove of the interposition member and elastically sandwiched. The said closing member is the shape by which the said to-be-clamped board protruded at right angles to the two mutually orthogonal edge in the closing board which plugs up the said clearance gap of the said dividing edge, It is characterized by the above-mentioned. 2. The cooling storage according to 2. In the closing member, a pair of closing plates that close the gaps of the dividing edges are arranged with a space therebetween, and a connecting plate is provided between one end edge of the two closing edges of each closing plate. The two closing plates are connected to each other by being passed, and the sandwiched plate protrudes at a right angle from the other edge of each closing plate. 2. The cooling storage according to 2. A pair of partition plates made of a metal plate in the shape of a shallow dish with side plates raised at the periphery on the periphery are arranged in a posture facing each other with a predetermined interval through a spacer made of a heat insulating material. An outer shell is formed, and the outer shell is formed by foam filling with a heat insulating material,
5. A connecting member having heat insulation properties is passed and fixed between the side plates of each partition plate at a corner portion of the outer shell body. The cooling storage according to item. The cooling storage according to claim 5, wherein the connecting member is formed by winding a sponge tape around an outer periphery of a metal angle member. The cooling storage according to claim 5, wherein the connecting member is made of a synthetic resin.

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