JPH08200933A - Heat insulating box body - Google Patents

Abstract

PURPOSE: To provide a heat insulating box body which enables preventing of the deformation of a topboard of a machine chamber during the packing of heat insulating material while improving the strength after the finishing thereof. CONSTITUTION: A heat insulating box body 1 comprises an outer box 2, an inner box 3 and a heat insulating material 4 foamed and packed between both the boxes 2 and 3 and a machine chamber 7 is formed at a lower part thereof. The box body is also provided with a topboard 7A of the machine chamber 7 forming the outer box 2, an angle material 8 positioned on the outer rim of the machine chamber 7 and a reinforcing member 14 mounted across an angle material 8B on the lower rim of the machine chamber 7 and the rim part of the topboard 7A.

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 a heat insulating material is foam-filled between an outer box and an inner box.

[0002]

2. Description of the Related Art Conventionally, a heat insulating box constituting a main body of a refrigerator or a showcase is foamed between an outer box and an inner box made of a steel plate as disclosed in, for example, Japanese Patent Publication No. 4-1269 (F25D23 / 06). It is constructed by filling a heat insulating material such as polyurethane by an on-site foaming method. 5 and 6 are cross-sectional views of a conventional heat insulating box body 100 of this type showcase. The heat insulating box body 100 includes an outer box 102 made of a steel plate that opens to the front, and an inner box 103 made of a steel plate or a hard resin that opens in the outer box 102 with a space therebetween and opens to the front.
And a heat insulating material 104 made of foamed polyurethane filled between the outer box 102 and the inner box 103 by an in-situ foaming method.
It consists of and.

A storage chamber 106 is provided in the inner box 103.
And a machine room 107 is formed in the lower part of the heat insulation box 100. The machine room 107 is a space for installing a refrigerator such as a compressor or a condenser, and the side plates 102A of the outer box 102 extend to both sides of the machine room 107. In addition, a machine room 107 that constitutes the outer box 102
Both side edges of the top plate 107A are in contact with the inner surface of the side plate 102A.

Inside the lower part of the side plate 102A of the outer box 102, side angle members 108, 108 and front angle members 109, which are base legs, are attached. Each angle material 1
Reference numerals 08 and 109 are made of thick steel plates having a U-shaped cross section, the side angle member 108 has a rear side 108A and a lower side 108B, and the front angle member 109 has a lower side and both side sides 1 not shown.
09A and the side plate 1 which is the outer edge of the machine room 107.
It is located at the front and rear of the lower part of 02A and inside the lower edge. In addition, 1
11 is an adjustable leg.

[0005]

With the above configuration, when the heat insulating material 104 of the heat insulating box body 100 is filled, the outer box 1 described above is used.
02 (including the top plate 107A), the inner box 103 and the angle members 108 and 109 are assembled, and then the outer box 102 is pressed from the outside and the inner box 103 from the inside by a foaming jig (not shown), and the state Is to inject the undiluted solution of the heat insulating material 104 into the space between the outer box 102 and the inner box 103 to foam, but the edge portion 108A of the top plate 107A of the machine room 107 has side angle members 108 and the like, so-called undercut Therefore, the jig cannot hold it.

Therefore, both side edges of the top plate 107A swell downward due to the foaming pressure of the heat insulating material 104 as shown by the broken line in FIG. 5, which interferes with the compressor and the condenser and makes it impossible to install them. There is a problem in that the flow of air in the machine room 107 is disturbed to cause poor heat exchange between the condenser and the cooling air. In addition, the heat insulating material 104 may leak from the edge of the top plate 107A, and in that case, the heat insulating performance and the structural strength of the heat insulating box 100 are significantly reduced.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and it is possible to prevent the deformation of the machine room top plate at the time of filling the heat insulating material and to improve the strength after completion. It is an object of the present invention to provide a heat insulating box body capable of

[0008]

The heat-insulating box body of the present invention comprises an outer box, an inner box, and a heat-insulating material foam-filled between both boxes, and a machine room is formed in the lower part. A top plate of the machine room forming the outer box, an angle member located at the outer edge of the machine room, and a reinforcing member attached between the angle member at the lower edge of the machine room and the edge of the top plate. It is equipped with.

Further, in the heat insulating box body according to claim 2, the reinforcing member has an upper side corresponding to the lower surface of the top plate, a lower side corresponding to the upper surface of the angle member, and a vertical side extending between outer ends of the upper and lower sides. The vertical side and the upper side, or the part where the vertical side and the lower side are continuous, has a predetermined curved shape.

[0010]

According to the heat insulation box of the present invention, since the reinforcing member is attached across the angle member at the lower edge of the machine room and the edge of the top plate of the machine room, the top plate edge that cannot be pressed by the foaming jig. It is possible to prevent the deformation of the machine room top plate due to the foaming pressure of the heat insulating material by pressing the portion with the reinforcing member. Therefore, it is possible to avoid the inconvenience that the equipment installed in the machine room interferes with the top plate and the air in the machine room is disturbed.

Further, since the leakage of the heat insulating material is prevented, the occurrence of structural failure of the heat insulating box can be eliminated in advance, and after the completion, the reinforcing member is continuously positioned between the top plate and the angle member. Since the lower part of the heat insulating box is reinforced, the structural strength is also improved.

In particular, according to the heat insulating box of the second aspect of the invention, in addition to this, the reinforcing member has an upper side corresponding to the lower surface of the top plate, a lower side corresponding to the upper surface of the angle member, and the outer ends of these upper and lower sides. Since it is configured with the vertical side that extends over, the reinforcement member is less likely to interfere with the equipment installed in the machine room,
Since the vertical side and the upper side or the part where the vertical side and the lower side are continuous has a predetermined curved shape, even if the reinforcing member moves outside during foaming of the heat insulating material, there is a risk of dents on the outer box. Is less.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a showcase S as an embodiment to which the present invention is applied, FIG. 2 is a vertical sectional side view of a heat insulating box 1 of the present invention which constitutes the main body of the showcase S, and FIG. 3 is an A- of FIG. A
The line sectional views are respectively shown.

The heat-insulating box body 1 of the showcase S includes an outer box 2 made of a steel plate that opens to the front, and a steel plate or a hard resin made to open in the front that is installed in the outer box 2 with a gap. It is composed of a box 3 and a heat insulating material 4 made of foamed polyurethane filled between the outer box 2 and the inner box 3 by an in-situ foaming method.

A storage chamber 6 is formed in the inner box 3, and a front opening of the storage chamber 6 is closed by a sliding door type glass doors 5 and 5 so as to be openable and closable. A machine room 7 is formed below the heat insulating box 1. The machine room 7 is a space for installing a refrigerator such as a compressor or a condenser, and the side plates 2A of the outer box 2 extend to both sides of the machine room 7. Further, both side edges of the top plate 7A of the machine room 7 constituting the outer box 2 are in contact with the inner surface of the side plate 2A.

Further, inside the lower part of the side plate 2A of the outer box 2, side angle members 8 and 8 and a front angle member 9 which are base legs are attached. Each of the angle members 8 and 9 is made of a thick steel plate having a U-shaped cross section, and the side angle member 8 includes the rear side 8A and the lower side 8
B, and the front angle member 9 has a lower side (not shown) and both side sides 9A, and is located in the front and rear of the lower portion of the side plate 2A, which is the outer edge of the machine chamber 7, and inside the lower edge. Incidentally, 11 is an adjustable leg.

Furthermore, a reinforcing member 14 is provided at the center of the lower sides 8B, 8B of the side angle members 8 on both sides in the front-rear direction.
14 are provided respectively. This reinforcing member 14 is
It is formed by bending a thick-walled steel plate similar to the angle members 8 and 9, and has an upper side 14A, a lower side 14B, and upper and lower sides 14A and 14B.
The vertical side 14C extends between the outer ends of A and 14B. Among these, the continuous portion 14D of the vertical side 14C and the upper side 14A has a curved shape with a predetermined curvature, and the inner edge of the lower side 14B is formed with a flange 14E folded back upward.

Then, as shown in FIG. 4, while the lower side 14B is in contact with the upper surface of the lower side 8B of the side angle member 8 (inside the U-shape), the flange 14E is fixed to the lower side 8B by screws 17. The reinforcing member 14 is attached. At this time, the upper side 14A of the reinforcing member 14 contacts the lower surface of the top plate 7A, and the vertical side 14C is arranged along the inner side of the side plate 2A.

With the above construction, when the heat insulating material 4 of the heat insulating box 1 is filled, the outer box 2 (including the top plate 7A), the inner box 3, the respective angle members 8, 8, 9 and the reinforcing member are provided. After assembling or attaching 14, 14, the outer box 2 is pressed from the outside and the inner box 3 is pressed from the inside by a foaming jig (not shown), and in this state, the stock solution of the heat insulating material 4 is pressed into the outer box 2 and the inside. Box 3
Pour in between to foam.

The heat insulating material 4 is solidified to complete the heat insulating box 1, but during the foaming work, side angle members 8 are present on both side edges of the top plate 7A of the machine room 7. It cannot be pressed with the jig. However, the upper side 14A of the reinforcing member 14 is attached to the lower surface of the central portion on both side edges of the top plate 7A.
Are abutting against each other and pressing from the machine room 7 side, the heat insulating material 4
Even if the bubbling pressure is applied to the top plate 7A, it is difficult to deform downward as in the conventional case. Therefore, it is possible to avoid the inconvenience that the compressor or the condenser installed in the machine room 7 interferes with the top plate 7A and the air in the machine room 7 is disturbed.

Since the leakage of the heat insulating material 4 is also prevented,
The occurrence of structural failure of the heat insulating box 1 is eliminated in advance, and after completion, the reinforcing member 14 continues to be positioned between the top plate 7A and the lower side 8B of the side angle member 8 to secure the lower part of the heat insulating box 1. Since it will be reinforced, the structural strength is also improved.

In particular, the reinforcing member 14 has an upper side 14A that abuts the lower surface of the top plate 7A, a lower side 14B that corresponds to the upper surface of the lower side 8B of the side angle member 8, and a vertical side that extends between the outer ends of these upper and lower sides 14A and 14B. Since it is composed of 14C,
The reinforcing member 14 is less likely to interfere with equipment such as a compressor installed in the machine room 7, and the vertical side 14C and the upper side 14
Since the continuous portion 14D with A has a predetermined curved shape, even if the reinforcing member 14 moves toward the outer side plate 2A during foaming of the heat insulating material 4, there is a risk that a dent may occur on the side plate 2A of the outer box 2. Less likely.

In the embodiment, the lower side 14B of the reinforcing member 14
Was fixed to the lower side 8B of the side angle member 8, but the upper side 14
A may be fixed to the top plate 7A. In that case, naturally, the continuous portion of the lower side 14B and the vertical side 14C is curved.

[0024]

As described above in detail, according to the present invention, since the reinforcing member is attached across the angle member at the lower edge of the machine room and the edge of the top plate of the machine room, it cannot be pressed by the foaming jig. It is possible to prevent deformation of the machine room top plate due to foaming pressure of the heat insulating material by pressing the top plate edge portion with the reinforcing member. Therefore, it is possible to avoid the inconvenience that the equipment installed in the machine room interferes with the top plate and the air in the machine room is disturbed.

Further, since the leakage of the heat insulating material is prevented, the occurrence of structural failure of the heat insulating box can be eliminated in advance, and after the completion, the reinforcing member is continuously positioned between the top plate and the angle member. Since the lower part of the heat insulating box is reinforced, the structural strength is also improved.

In particular, according to the invention of claim 2, in addition to this, the reinforcing member is provided with an upper side corresponding to the lower surface of the top plate, a lower side corresponding to the upper surface of the angle member, and a vertical side extending between outer ends of these upper and lower sides. Since the reinforcing member is less likely to interfere with the equipment installed in the machine room, the vertical side and the upper side or the part where the vertical side and the lower side are continuous has a predetermined curved shape. Even if the reinforcing member moves outward during foaming, the risk of dents on the outer box is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a showcase as an example to which a heat insulating box of the present invention is applied.

FIG. 2 is a vertical sectional side view of a heat insulating box body of the showcase of FIG.

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

FIG. 4 is a perspective view of a lower portion of a heat insulating box body of the showcase shown in FIG.

FIG. 5 is a vertical cross-sectional side view of a heat insulating box of a conventional showcase.

6 is a vertical cross-sectional front view of a lower portion of the heat insulating box of FIG.

[Explanation of symbols]

 1 Insulation Box Body 2 Outer Box 3 Inner Box 4 Insulation Material 7 Machine Room 7A Top Plate 8 Side Angle Material 8B Lower Side 14 Reinforcement Member 14A Upper Side 14B Lower Side 14C Vertical Side 14D Continuous Section

Claims (2)

[Claims] 1. A heat-insulating box body comprising an outer box, an inner box, and a heat insulating material foam-filled between both boxes, and a machine room being formed in a lower part of the machine box, wherein A heat insulation comprising a top plate, an angle member positioned at the outer edge of the machine room, and a reinforcing member attached between the angle member at the lower edge of the machine room and the edge portion of the top plate. Box. 2. The reinforcing member comprises an upper side corresponding to the lower surface of the top plate, a lower side corresponding to the upper surface of the angle member, and a vertical side extending between outer ends of these upper and lower sides. The vertical side and the upper side,
Alternatively, the portion where the vertical side and the lower side are continuous is formed into a predetermined curved shape, and the heat insulation box body according to claim 1.