JP2002277155A - Structure of heat insulating box member for freezing and refrigerating showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a structure of a heat insulating box member for a freezing and refrigerating showcase in which the number of works of members or assembling steps are lowered when the heat insulating box member is assembled, a workability is improved, a dimensional accuracy in assembly can be improved and the quality of a product can be ensured. SOLUTION: In the structure of the heat insulating box member 1, the heat insulating box member having a substantially U-shape in section in which a rise part in a front surface side, a bottom part and a rise part in a rear surface side are continued is formed by filling a space surrounded by an outer surface material 2, an inner surface material 3 and end face materials 4 at both ends with a heat insulating material, each end face material 4 is provided with protrusions 11 as engaging parts and engaging holes 12 as engaging parts to be fitted to the engaging parts are respectively formed on the outer surface material 2 and the inner surface material 3.

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 structure for a refrigerator-freezer showcase.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, in a freezer and refrigerated showcase installed in a store such as a supermarket, a main body is formed by connecting a front rising portion 1a, a bottom portion 1b, and a rear rising portion 1c. There is one formed of a heat insulating box 1 having a substantially U-shaped cross section.
As shown in FIG. 4, FIG. 5, and FIG. 6, the heat insulating material 5 is filled in a space surrounded by the outer surface material 2, the inner surface material 3, and the end surface material 4 having a substantially U-shaped cross section at both ends. The upper surface is formed in an opening 6 for taking in and out a product, and the inside is a product storage 7.

In the heat insulating box 1 of such a showcase, the outer member 2 and the inner member 3 are joined to the end members 4 at both ends as described above, and the inner member 3 is heat insulating. Since the drain pipe is connected to the bottom of the box 1, it is divided into a plurality (three in the illustrated example),
a, 3b, 3c, and the outer surface material 2 is also divided into two parts 2a, 2b with the front side divided, and these divided bodies 3a, 3b, 3c, and the divided bodies 2a, 2b are each independently an end face material 4. Is combined with

[0004] Conventionally, as a joining structure, both the inner member 3 and the outer member 2 have respective divided bodies 3a, 3a.
b, 3c, a vertical flange 8 is provided on the divided bodies 2a, 2b,
A mounting hole 9 is drilled in the vertical flange 8, and the vertical flange 8 contacts the outside of the end face member 4.
The divided bodies 3a, 3b, 3c and the divided bodies 2a, 2b are respectively fixed to the end face members 4 by inserting screws 10 into the end faces 4 and further joined by nailing.

[0005]

In such a joint structure, not only the number of steps of bending work for forming the vertical flange 8 on the inner surface material 3 and the outer surface material 2 is required, but also,
At the time of assembly, a large number of divided bodies 3a, 3b, 3c, divided bodies 2
The work of adjusting the alignment by a and 2b and the work of screwing a large number of places are also required, so that the man-hours of processing and assembly are increased. Also, since the assembly dimensional accuracy is affected by the quality of the alignment adjustment, if the alignment adjustment is not performed well, it is difficult to obtain the assembly dimensional accuracy of each member, and it is difficult to ensure product quality. There are things.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to reduce the number of processes for assembling and assembling members when assembling a heat insulating box, thereby improving workability and improving the dimensional accuracy of assembly. Another object of the present invention is to provide a heat-insulating box structure for a refrigerator-freezer showcase that can ensure product quality.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly provides a heat insulating box having a substantially U-shaped cross section in which a front rising portion, a bottom portion, and a rear rising portion are continuous. In a heat-insulating box structure formed by filling a heat insulating material in a space surrounded by an outer surface material, an inner surface material, and both end surface materials, a locking portion is formed on each of the end surface materials, and Since the fitting portion to be fitted is formed on the outer surface material and the inner surface material, respectively, in order to fix the outer surface material and the inner surface material to the end surface material, it is only necessary to correspond the locking portion and the engaging portion, Positioning is easy and assembly dimensional accuracy can be improved. In addition, since a vertical flange for coupling like the conventional one is unnecessary,
Since the number of processing steps can be reduced and screwing is not required, the number of assembly steps can be reduced.

[0008] Second, the locking portion is a plurality of projections,
Since the engaging portion has a plurality of locking holes, it is possible to fix the outer surface material and the inner surface material to the end surface material with one touch at the same time as positioning to a predetermined position by a simple operation of inserting the projection into the locking hole.

Third, since the engaging portions are formed on the upper surface and the lower surface of the end surface material and on the side surface continuous with the upper surface and the lower surface, the outer surface material and the inner surface material can be shifted only in the horizontal and vertical directions. Positioning and joining operations can be easily performed on the end face material.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional side view of an exploded state showing an embodiment of a heat insulating box structure of a freezing and refrigerated showcase of the present invention, and FIG. 2 is an exploded perspective view of the same, in which FIGS.
The same constituent elements as those of the conventional example described above are denoted by the same reference numerals.

The heat-insulating box 1 of the present invention also has a basic structure similar to that of the prior art, in which a heat-insulating material 5 is filled in a space surrounded by an outer surface material 2, an inner surface material 3, and end surfaces 4 having substantially U-shaped cross sections at both ends. Since the drain pipe is connected to the bottom of the heat insulating box 1, a plurality of inner surface materials 3 (3 in the illustrated example) are formed.
And the outer surface material 2 is also divided into portions corresponding to the rising portion 1a on the front surface side and divided into two divided bodies 2a and 2b. 3a, 3b, 3c and the divided bodies 2a, 2b are individually connected to the end face material 4.

According to the present invention, in the heat-insulating box 1 having such a configuration, the inner side surface of the upper surface and the lower surface of the end face member 4 and the rear rising portion continuous with the upper surface, and the outer side of the front surface rising portion continuous with the lower surface. A plurality of projections 11 as locking portions are respectively provided on the side surfaces of the outer surface member 2 and the inner surface material 3 as a plurality of locking holes 12 as engaging portions fitted to the protrusions 11. And formed respectively.

Therefore, in order to assemble the heat insulating box 1 by connecting the outer surface material 2 and the inner surface material 3 to the end face material 4, the divided bodies 2a,
Each of the divided bodies 2a and 2b of the outer surface member 2 composed of the outer surface member 2b may be applied to the lower surface or the front side surface of the end surface member 4, respectively, and the engagement holes 12 may be fitted to the projections 11 and fitted to each other. Similarly, the inner surface member 3 composed of the divided bodies 3a, 3b, and 3c has the upper surface of the end surface member 4, the inner side of the rising portion on the back side,
The divided bodies 3a, 3b,
3c may be applied, and the engagement hole 12 may be fitted to the projection 11 so as to match.

As described above, by the engagement between the locking hole 12 and the projection 11, the positioning can be performed and the coupling can be completed at the same time.
In this state, it is possible to immediately shift to nailing work, so that the heat insulating material 5
Temporary assembly as a box before filling is easily completed.

The positioning of the locking holes 12 and the projections 11 can be easily performed only by shifting the outer surface material 2 and the inner surface material 3 with respect to the end surface material 4 in the horizontal and vertical directions, respectively.

As shown in FIG. 3, the heat-insulating box 1 assembled as described above has a back plate 13, a side plate 14, and a bottom frame 1 attached thereto.
If you attach 5 etc., the showcase body will be assembled. When assembling such a showcase body, the back plate 13, the side plate 1
4, a locking hole 12 is also provided in a sheet metal part such as the bottom frame 15, and if the locking hole 12 matches the projection 11 provided in the end face member 4, the mounting dimensional accuracy of the main component at the time of assembling the main body is improved. Can be further improved. In this case, the protrusion 11 for connecting the outer surface material 27 and the inner surface material 3 can be used in common.

[0017]

As described above, the heat-insulating box structure of the refrigerator-freezer showcase of the present invention has, first, a substantially U-shaped cross-section in which the front rising portion, the bottom portion, and the rear rising portion are continuous. Insulated box body, in a heat insulating box structure formed by filling a heat insulating material in a space surrounded by an outer surface material, an inner surface material, and end materials at both ends, a locking portion is formed on each of the end materials, By forming the engaging portion to be fitted to the locking portion on the outer surface material and the inner surface material, respectively, the fixing portion and the engaging portion correspond to fix the outer surface material and the inner surface material to the end surface material. In this case, positioning is easy, workability is improved, assembly dimensional accuracy can be improved, and product quality can be ensured. Further, since a conventional vertical flange for coupling is not required, the number of processing steps can be reduced, and screwing is not required, so that the assembly step can be reduced.

Second, the locking portion is a plurality of projections,
Since the engaging portion has a plurality of locking holes, it is possible to fix the outer surface material and the inner surface material to the end surface material with one touch at the same time as positioning to a predetermined position by a simple operation of inserting the projection into the locking hole.

Third, since the engaging portion is formed on the upper surface and the lower surface of the end surface material and on the side surface continuous with the upper surface and the lower surface, the outer surface material and the inner surface material are simply displaced in the horizontal and vertical directions. Positioning and joining operations can be easily performed on the end face material.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of an exploded state showing an embodiment of a heat insulating box structure of a refrigerator-freezer showcase of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of the heat insulating box structure of the refrigerator-freezer showcase of the present invention.

FIG. 3 is a vertical sectional side view of a showcase main body showing an embodiment of a heat-insulating box structure of the refrigerator-freezer showcase of the present invention.

FIG. 4 is a vertical sectional side view of a showcase provided with a heat insulating box structure of the refrigerator-freezer showcase of the present invention.

FIG. 5 is a vertical sectional side view of a disassembled state of a heat insulating box structure of a conventional freezing and refrigerated showcase.

FIG. 6 is an exploded perspective view of a heat-insulating box structure of a conventional refrigerator-freezer showcase.

[Explanation of symbols]

1 ... heat-insulating box 1a ... rising part 1b ...
Bottom 1c ... rising part 2 ... outer surface material 2a,
2b ... divided body 3 ... inner surface material 3a, 3b, 3c ... divided body 4 ... end face material 5 ... heat insulating material 6 ... opening 7 ... product storage 8 ... vertical flange 9 ... mounting hole 10 ... screw 11 ... projection 12 ...
Locking hole 13 Back plate 14 Side plate 15
Bottom frame

Claims (3)

[Claims] 1. A heat insulating box having a substantially U-shaped cross section in which a front rising portion, a bottom portion, and a rear rising portion are connected to each other in a space surrounded by an outer surface material, an inner surface material, and end surface materials at both ends. In the heat-insulating box structure formed by filling a heat-insulating material into the end surface material, a locking portion is formed on each of the end face materials, and engagement portions fitted to the locking portions are formed on the outer surface material and the inner surface material, respectively. A heat-insulated box structure of a refrigerated showcase. 2. The heat-insulating box structure for a freezer and refrigerated showcase according to claim 1, wherein said locking portion is a plurality of projections, and said engaging portion is a plurality of locking holes. 3. The refrigerated showcase according to claim 1, wherein the locking portion is formed on an upper surface and a lower surface of the end face material and on a side surface continuous with the upper surface and the lower surface. Insulated box structure.