JPH06300429A - Heat insulating box - Google Patents

Abstract

PURPOSE:To very easily disassemble a heat insulating box without the use of any special disassembling tool. CONSTITUTION:A heat insulating box 1 is constructed such that an inner box 9 is received in an outer box 8 with gaps therebetween, and a foam heat insulating material is filled between. Both boxes 8, 9. Both boxes 8, 9 are constituted by separate roof boards 8a, bottom board 9b, right and left side boards 8c, 8d, 9c and rear boards 9e, and the respective boards of the outer box 8 are joined to one another by screws 15 from outside. The outer box 8 is formed with insertion portions 23 which serve to have a screwdriver inserted therethrough an corresponding to screws which is join the inner box 9 and have the respective boards of the inner box 9 joined to one another from outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating box body in which foamed heat insulating material is filled between inner and outer boxes.

[0002]

2. Description of the Related Art Conventionally, in a refrigerator of this type, when it is necessary to replace the refrigerator due to the end of its useful life or the like, the refrigerator must be taken out of the room such as a kitchen. At this time, if the outlet such as the kitchen is small, remove the accessories such as the door and cooling unit and carry it out only as the heat insulation box that constitutes the main body.If it still does not pass, destroy the outlet and carry it out. If it is unavoidable and the outlet cannot be destroyed, the insulation box must be disassembled into smaller pieces.

Further, even if the heat-insulating box can be carried out from the room as it is, it becomes a problem when it is discarded, and in any case, it must be finely disassembled. Therefore, conventionally, the heat insulating box has been cut into pieces using a cutting tool such as a chainsaw, which makes the work extremely troublesome. Therefore, Japanese Utility Model Publication No. 53-52117 prior to the present application
According to Japanese Patent Publication (F25D23 / 06), a windable tongue piece is preliminarily formed and placed on a metal outer box of a heat insulating box body, and the tongue piece is wound by a special disassembling tool. The outer box could be cut without using.

[0004]

However, even if the outer box structure as described in the above publication is used, only a part of the outer box structure can be cut. Therefore, in order to completely disassemble each wall constituting the heat-insulating box body, There was a problem that work such as cutting the box was still necessary. There is also a drawback that a special disassembling tool for winding up the tongue must be used for cutting the outer box.

The present invention has been made to solve the above-mentioned conventional technical problems, and makes it possible to disassemble the heat-insulating box extremely easily without using any special disassembling tool. With the goal.

[0006]

A heat-insulating box body 1 according to the invention of claim 1 accommodates an inner box 9 in an outer box 8 with a space therebetween, and a foam heat insulating material 11 is provided between both boxes 8, 9. Top plates 8a, 9 which are formed by filling and are separate bodies constituting the both boxes 8, 9 respectively.
a, bottom plates 8b, 9b, left and right side plates 8c, 8d, 9c, 9d
And rear plates 8e and 9e, an outer box fixture (screw) 15 that mutually connects the plates of the outer box 8 from the outside, and an inner box fixture (screw) that mutually connects the plates of the inner box 9 from the outside. ) 22, and an insertion portion for inserting a disassembly tool (driver) 28 formed in the outer box 8 corresponding to the inner box fixing tool (screw) 22 and releasing the connection of the inner box fixing tool (screw) 22. And 23.

The heat-insulating box 1 according to the second aspect of the present invention comprises an outer box 8 and an inner box 9 which are spaced apart from each other, and a foam insulating material 11 is filled between the two boxes 8. There are separate top plates 8a and 9a and bottom plates 8b and 9 that form the boxes 8 and 9, respectively.
b, left and right side plates 8c, 8d, 9c, 9d and rear plates 8e, 9
e, an outer box fixing tool (screw) 15 for connecting the respective plates of the outer box 8 to each other from the outside, and an edge portion of the top plate 9a of the inner box 9 with a rear plate 9e of the inner box 9 and left and right side plates 9c, 9d. To the left and right side plates 9c and 9d of the inner box 9 from the rear, and the edge of the bottom plate 9b of the inner box 9 to the rear plate 9e of the inner box 9. And inner box fixtures (screws) 22 that are respectively coupled to the left and right side plates 9c and 9d from below, and inner box fixtures (screws) that are respectively formed on the outer box 8 corresponding to the inner box fixtures (screws) 22. It is provided with an insertion portion 23 for inserting a disassembly tool (driver) 28 for releasing the connection of 22.

[0008]

According to the heat-insulating box body 1 of the invention of claim 1, the outer box 8 can be detached by disconnecting the outer box fixing member (screw) 15 from the outside.
The plates are disconnected from each other and can be disassembled. Also,
If the disassembling tool (driver) 28 is inserted from the insertion portion 23 formed in the outer box 8 corresponding to the inner box fixing tool (screw) 22 and the inner box fixing tool (screw) 22 is uncoupled, the inner box 9 The plates are disconnected from each other and can be disassembled. In this state, the ridges of both the inner and outer boxes 9 and 8 are only held by the adhesive force of the foamed heat insulating material 11. Therefore, by pushing each plate of the inner box 9 from the inside to the outside, The ridges 9 and 8 are easily torn by shearing, and the heat insulating box 1 can be disassembled for each wall.

According to the heat insulating box body 1 of the second aspect of the invention, the edge portion of the top plate 9a of the inner box 9 has the rear plate 9e and the left and right side plates 9.
c and 9d from above, the edge of the rear plate 9e of the inner box 9 is the inner box 9
From the rear to the left and right side plates 9c and 9d, and further, the edge of the bottom plate 9b of the inner box 9 is the rear plate 9e and the left and right side plates 9c and 9d of the inner box 9.
Since they are connected to each other from below by inner box fixtures (screws) 22, the insertion portions 23 corresponding to the respective inner box fixtures (screws) 22 include the top plate 8a, the rear plate 8e, and the bottom plate 8 of the outer box 8.
In addition to the above-mentioned effects, each insertion portion 23 can be formed at a position where appearance is not unsightly.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an upper perspective view of the heat insulating box body 1 of the present invention, FIG. 2 is a lower perspective view of the heat insulating box body 1, and FIG. 3 is a front view of a refrigerator 2 in which the heat insulating box body 1 constitutes a main body. The refrigerator 2 as an example is a so-called commercial refrigerator installed in a kitchen or the like of a restaurant, and the main body is constituted by the heat insulating box 1 of the present invention that is open to the front. Storage room 3 in the warehouse
Are formed. The opening of the storage chamber 3 is openably and closably closed by a rotatable door 4 ... And a base leg 6 ... A cooling unit (not shown) is installed on the surface, and the front thereof is covered with a unit cover 7.

When the cooling unit is operated, the cold air from the cooling unit is circulated in the storage chamber 3 of the refrigerator 1, whereby the storage chamber 3 is maintained at a predetermined refrigerating or freezing temperature. become. Next, the structure of the heat insulating box 1 will be described. The heat insulation box 1 is a metal outer box 8
And a metal inner box 9 housed in the outer box 8 with a space, and a foamed heat insulating material 11 such as foamed polyurethane filled between the inner and outer boxes 8 and 9 by an in-situ foaming method. It is configured. The outer box 8 is a top plate 8 made of a separate metal plate.
a, a bottom plate 8b, left and right side plates 8c and 8d, a rear plate 8e and upper and lower frame plates 8f and 8g, and a top plate 9a made of a separate metal plate for the inner box 9, as shown in FIG. Bottom plate 9
b, left and right side plates 9c and 9d, and a rear plate 9e. Then, the top plates 9a and 8a of the inner and outer boxes 9 and 8 are provided with rectangular through holes 12 and 13 for mounting the cooling unit.

Next, FIG. 4 shows a sectional view taken along the line AA of FIG. The cross section taken along the line BB of FIG. 1, the cross section taken along the line DD of FIG. 2, the cross section taken along the line EE, and the cross section taken along the line FF are basically the same shape as that of FIG. The top plate 8a of the outer box 8 is shown in FIG.
As shown in FIG. 6, a flange 81 is formed by bending inwardly on the upper edge of the rear plate 8e, a flange (not shown) similarly formed on the upper edges of the left and right side plates 8c and 8d, and a flange 81 similarly formed on the upper edge of the upper frame plate 8f. It is placed on a flange (not shown) from above and is connected to each flange 81 by a screw 15 as an outer box fixing tool that penetrates a plurality of screw holes 14 formed in the peripheral edge thereof.
Further, the rear plate 8e of the outer case 8 corresponds to a similar flange (not shown) formed by bending inwardly at the rear edges of the left and right side plates 8c and 8d from the rear side, and a plurality of screw holes similarly formed on both side edges thereof. A screw 15 penetrating 14 is connected to each flange.

Further, the bottom plate 8b of the outer box 8 has a similar flange (not shown) formed inwardly at the lower edge of the rear plate 8e and a flange (not shown) similarly formed at the lower edges of the left and right side plates 8c, 8d. And a flange (not shown) similarly formed on the lower edge of the lower frame plate 8g from below, and is connected to each flange by a screw 15 penetrating a plurality of screw holes 14 formed in the peripheral edge thereof. A flange 82 bent inward is formed at the front edges of the left right plates 8c and 8d as shown in FIG. 5 (a sectional view taken along the line CC in FIG. 1). The flange 82 and the upper and lower frame plates 8f and 8g are formed. Reinforcing plates 17 located at the four corners of the front surface of the outer box 8 are provided on the back surface of the outer box 8. Screw holes 18 are formed in the flange 82 and the upper and lower frame plates 8f and 8g, and the left and right side plates 8c and 8d and the upper and lower frame plates 8 are penetrated by screws 19 which penetrate the screw holes 18 and are screwed into the reinforcing plate 17.
f and 8g are combined, and the outer box 8 having the front opening is assembled by the above.

On the other hand, the top plate 9a of the inner box 9 has a flange 91 formed by bending outward on the upper edge of the rear plate 9e as shown in FIG.
And an inner box fixing tool that is placed from above on flanges 92, 92 that are also bent outwardly at the upper edges of the left and right side plates 9c, 9d, and that penetrates through a plurality of screw holes 21 on the periphery thereof from above. Is connected to each of the flanges 91 and 92 by a screw 22 as a. In addition, the rear plate 9e of the inner box 9 is
c, 9d, a flange 93 outwardly bent at the rear edge,
The flange 93 is connected to both flanges 93, 93 by a screw 22 which corresponds to 93 from the rear side and which similarly penetrates a plurality of screw holes 21 formed on both side edges from the rear side.

Further, the bottom plate 9b of the inner box 9 has a flange 94 outwardly bent at the lower edge of the rear plate 9e and the left and right side plates 9.
Similarly, the flanges 96 and 96, which are similarly bent outwardly at the lower edges of the c and 9d, correspond to the flanges 96 and 96 from below, and the flanges 94 and 96 are formed by the screws 22 that penetrate through the screw holes 21 formed in the peripheral edge from below. The inner box 9 which is connected to 96 and which is opened forward is assembled by the above.

The inner box 9 has flanges 91, 92, 9
As shown in FIG. 4, the top plate 8 of the outer box 8 is located at least between the flanges 81 and 81 of the outer box 8 which face each other, including 3, 94 and 96, and which corresponds to the head of each screw 22.
left and right side edges and rear edge of a, and left and right side edges of the rear plate 8e,
A plurality of insertion portions 23 each having a circular hole with a diameter larger than that of the screw 22 are formed in the left and right edges and the rear edge of the bottom plate 8b. At this time, the insertion portion 23 is the top plate 8 of the outer box 8.
Since a, the rear plate 8e, and the bottom plate 8b are provided, it is difficult to see from the outside when the refrigerator 2 is installed, and therefore the appearance of the refrigerator 2 is not impaired. The insertion portion 23 is assumed to be sealed with paper or the like that can be easily torn by a driver or the like, which will be described later, and a so-called knockout hole (a plate itself is processed so as to be easily torn).
The insertion portion 23 may be configured with.

The inner box 9 assembled as described above is the outer box 8 described above.
They are housed inside with a space therebetween, and are connected by a resin breaker 24 that engages with the front edge of the inner box 9, the flange 82 of the outer box 8 and the upper and lower frame plates 8f, 8g. The breaker 24 is formed into a frame shape by abutting straight ones at upper, lower, left and right ends, and the abutting portions are sealed by a sealant 26. In this state, the undiluted polyurethane foam solution is injected between the boxes 8 and 9, and the heat insulating material 11 is filled in the foaming jig by the in-situ foaming method. The heat insulating material 11 filled between the two boxes 8 and 9 adheres to them, whereby the heat insulating box 1
Are united.

Next, when the refrigerator 2 has passed its useful life and needs to be disassembled, first, the doors 4 ...
..., accessory components such as the cooling unit and the unit cover 7 are removed from the heat insulating box 1. Next, the screws 15 and 19 of the outer box 8 are removed with a driver 28 as a disassembling tool to release the connection, and the plates 8a, 8b, 8c and 8 are removed.
The mutual bonds of d, 8e, 8f and 8g are released. next,
A screwdriver 28 is inserted into the heat insulating material 11 from the insertion portion 23 of the outer box 8 as shown by a broken line in FIG. 4, and the screw 22 of the inner box 9 is removed to release the connection, and the plates 9a, 9b, 9
c, 9d and 9e are released from each other.

As a result, both the inner and outer boxes 9 and 8 can be disassembled, and in this state, the ridge line portion P of the heat insulating box 1 is only held by the adhesive force of the heat insulating material 11. Therefore, the plates 9a, 9b, 9c, 9d and 9e of the inner box 9 are moved outward (from the plates 8a, 8b, 8c, 8d and 8e of the outer box 8 respectively) from the side of the storage chamber 3 as shown in FIG. The ridge line portion P of both boxes 9 and 8 can be easily torn by shearing by extruding toward the direction). Further, the breaker 24 is also easily disassembled by tearing the sealant 26, so that the heat insulating box body 1 can be attached to the ceiling wall, the bottom wall,
It can be disassembled into left and right side walls and a rear wall.

Although the inner box 9 is assembled by the screw 22 in the embodiment, the invention is not limited to this, and each plate 9a, such as a rivet,
9b, 9c, 9d and 9e may be combined. In that case, a drill is used as the disassembling tool, and the rivet can be released by inserting the drill from the insertion portion 23. In any case, according to the present invention, a special disassembling tool such as the conventional one can be used. Driver 28 without preparation
The heat insulation box 1 can be disassembled by a general disassembly tool such as a drill or a drill.

[0021]

As described above in detail, according to the present invention, the outer box fixing device is disengaged from the outside, and the disassembling tool is inserted from the insertion portion formed in the outer box corresponding to the inner box fixing device. If the inner box fixing device is then uncoupled, the plates of the inner box are uncoupled from each other, and in this state, the inner and outer boxes are only held by the adhesive force of the foamed heat insulating material. Therefore, by pushing each plate of the inner box from the inside to the outside,
Since the ridges of both boxes are easily torn by shearing, the heat insulating box body can be easily disassembled for each wall. In particular, as the disassembling tool, a driver or a drill capable of releasing the connection of the inner box fixing tool may be used, so that it is not necessary to prepare a special disassembling tool.

Further, according to the invention of claim 2, in addition to the above, the insertion portions corresponding to the respective inner box fixtures are formed on the top plate, rear plate and bottom plate of the outer box, respectively. It is also possible to prevent the appearance of the heat insulating box from being impaired by the insertion portion.

[Brief description of drawings]

FIG. 1 is an upper perspective view of a heat insulating box of the present invention.

FIG. 2 is a lower perspective view of the heat insulating box of the present invention.

FIG. 3 is a front view of a refrigerator whose main body is composed of the heat insulating box of the present invention.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line CC of FIG.

FIG. 6 is an exploded perspective view of an inner box.

[Explanation of symbols]

 1 Insulation box 8 Outer box 8a Top plate 8b Bottom plate 8c Left side plate 8d Right side plate 8e Rear plate 9 Inner box 9a Top plate 9b Bottom plate 9c Left side plate 9d Right side plate 9e Rear plate 11 Insulation material 15 Screw 22 Screw 23 Insert part

Claims (2)

[Claims] 1. A heat-insulating box body in which an inner box is housed at a space in an outer box and a foam heat insulating material is filled between the two boxes, and separate top plates constituting the both boxes, respectively. A bottom plate, left and right side plates, and a rear plate, an outer box fixing tool for connecting the plates of the outer box to each other from the outside, an inner box fixing tool for connecting the plates of the inner box to each other from the outside, and the inner box An insulating box body corresponding to a fixture, and an insert portion for inserting a disassembling tool for releasing the coupling of the inner box fixture with each other. 2. A heat-insulating box body in which an inner box is housed at a space in an outer box and a foam insulation material is filled between the two boxes, and a separate top plate that constitutes each of the two boxes. A bottom plate, left and right side plates, and a rear plate, an outer box fixture that connects the plates of the outer box to each other from the outside, and an edge of the top plate of the inner box is connected to the rear plate and the left and right side plates of the inner box from above. The inner box is fixed by connecting the edge of the rear plate of the inner box to the left and right side plates of the inner box from the rear and connecting the edge of the bottom plate of the inner box to the rear plate and the left and right side plates of the inner box from below. A heat-insulating box, characterized by comprising: a tool and an insertion part formed in the outer box corresponding to each inner box fixing tool, and an inserting portion for inserting a disassembling tool for releasing the coupling of the inner box fixing tool. body.