JPS5920621Y2 - insulation box body - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating box such as a refrigerator, and more particularly to a heat insulating box that allows a pomme angle to be easily and reliably fastened to the side plate of the heat insulating box.

In conventional heat insulating boxes, such as refrigerators, when the bottom angle forming the side wall of the machine room is fastened to the side plate, the bottom angle forming the side wall of the machine room is either spot welded before the side plate is painted or fastened with screws after the side plate is painted.

If the bottom angle is fastened to the side plate as described above, it requires equipment such as a welder, screw fasteners, and parts such as screws to fasten the bottom angle to the side plate, making it difficult to fasten the bottom angle to the side plate. There were drawbacks.

The present invention relates to a heat insulating box that eliminates the above-mentioned drawbacks.

Hereinafter, a case where an embodiment of the heat insulating box of the present invention is applied to a refrigerator will be described with reference to the drawings.

In the drawings, reference numeral 1 denotes an inner box in which a freezer compartment 2 and a refrigerator compartment 3 are integrally molded from a synthetic resin material, and a flange 5 having a rib 4 at the tip is formed on the outer peripheral edge of the front opening. There is.

6, 6 have a U-shaped groove 7.7 on the front edge that engages with the flange 5 of the inner box 1, and a U-shaped groove 8 on the rear edge that is substantially orthogonal to the U-shaped groove 7. 8 is formed on the side plate, and the upper and lower ends thereof have bent pieces 9, 9 bent inwardly.
．． 10.10.

The bent piece 10.10 at its lower end has a fitting hole 11.11.

Reference numeral 12 designates a top plate having a U-shaped groove 13 that engages with the flange 5 of the inner box 1 at its front edge and a U-shaped groove 14 that is approximately perpendicular to the U-shaped groove 13 at its rear edge. Flanges 15 and 15 are integrally formed on the edges, one step lower than the upper surface and abutting the lower surfaces of the bent pieces 9, 9 of the side plates 6, 6.

Reference numeral 16 denotes a substantially portal-shaped front plate, and one edge thereof is formed with a U-shaped groove 17 that engages with the lower part of the flange 5 of the inner box 1.

18. 18 is a bolt attached to the lower part of the side plates 6, 6.
The legs of the insulating box are made up of angles.

This bottom angle 18.18 has approximately 〈shaped bottom plate 1
A guide rail 20 for removably attaching the bottom plate 19, and a contact piece 21.2L for abutting (overlapping) the shaped bottom plate 19. Rear flange 2 with matching retaining piece (vertical piece) 22.22
3.23 and a bottom flange 25.25 having protrusions 24.24 that fit into the fitting holes 11, 11 of the side plates 6, 6 are formed.

26 is a flange formed at the front edge of the bottom plate 19.

This flange 26 connects the bottom plate 19 to the bottom angle 18.1.
When attached to the guide rails 20 and 20 of No. 8, it comes into contact with the inner surface of the front plate 16.

Reference numeral 27 designates the back plate of the outer box 29, which is composed of the side plates 6, 6, the top plate 12, etc., and has an appropriate number of protrusions 29, 29 on its outer peripheral edge.
It has a new song piece 30 formed with...

The bent pieces 30 are engaged with U-shaped grooves 8, 8 and 14 formed at the rear ends of the side plates 6, 6 and the top plate 12, and the protrusions 29, 29... are bent. This is to prevent the piece 30 from easily coming off the U-shaped grooves 8, 8, and 14.

31 is disposed on the outer periphery of the flange 5 of the inner box 1, and together with the flange 5, the side plates 6, 6 and the U-shaped groove 7 of the top plate 12,
7 and 13 are inserted and fixed into the dew prevention pipes (two condensation pipes), 32, 32... are the engagement between the flange 5 of the inner box 1 and the side plate 6゜6, the top plate 12 and the front plate 16. The heat-melting material heated and melted and poured into the corners temporarily fixes and seals the respective parts.

Reference numeral 33 indicates a foamed heat insulating material filled in the space formed by the inner box 1 and the outer box 28.

Here, the assembly operation of the heat insulating box of the present invention will be explained.

First, the inner box 1 is installed on an assembly jig stand with the front opening facing downward, and the dew prevention pipe 31 is surrounded around the outer periphery of the flange 5.

Then, when the ceiling side of the dew prevention pipe 31 is inserted into the U-shaped groove 13 formed on the front edge of the top plate 12 and the ceiling side of the flange 5 of the inner box 1 is engaged, the same result is obtained. the U-shaped groove 17 of the front plate 16 and the U-shaped groove 7 of the side plates 6, 6;
7, insert the lower side and both sides of the dew formation prevention pipe 31, and engage the lower side and both sides of the flange 5 of the inner box 1.

Therefore, in this state or at the bottom of both side plates 6, 6,
Attach the bottom angle 18.18 to the U-shaped groove 8°8 of the side plates 6, 6 to the rear flange 23 of the bottom angle 18, 18.
．． 23 (assembly in the direction of arrow a), and the bent pieces 10 at the lower ends of the side plates 6, 6.
Bottom angle 18.18 to ゜10 fitting hole 11.11
The flange 5 of the inner box 1, the top plate 12, the front plate 16, and the side plate 6.6 are connected (attached) by fitting the protrusions 24.24 of the bottom flange 25.25 (assembly in the direction of the arrow).
The heat-melting material 32, 32... is heated and melted and poured into the engaging corner to temporarily fix and seal the retaining corner.

After that, both sides of the bottom plate 19 are inserted and fixed into the guide rails 20.20 formed on the bottom angle 18.18, and the U-shaped grooves 1 formed on the back edges of the top plate 12 and side plates 6, 6 are inserted.
4, 8, and 8 are engaged with the bent pieces 30 of the back plate 27.

The engagement of the back plate 27 at this time prevents the upper ends of the top plate 12 and side plates 6, 6 from expanding outward, and also prevents the protrusions 29.
9, the bent piece 30 can be easily inserted into the U-shaped groove 14 and 8,8.
It acts to prevent withdrawal.

In this way, the foamed heat insulating material 33 can be injected into the space between the inner box 1 and the outer box 28 and foamed. The top plate 12, the front plate] 6, the bottom plate 19, and the back plate 27 do not come apart, and workability is extremely improved.

In the above case, as shown in FIG.
Since the engaging pieces 22.22 of the back flanges 23.23 of 18 are engaged with the U-shaped grooves 8, 8 of the side plates 6, 6, the leakage path of the foamed insulation material 33 is detoured, and the foaming The insulation will not leak.

In addition, in the above description, the bent pieces 1 at the lower ends of the side plates 6, 6
0.10 fitting hole 11.11, bom 1~m angle 18,
The case where the protrusions 24.24 of the seat flanges 25.25 of 18 are fitted together to prevent the assembly from being inserted in the a direction during assembly has been described. , 8 to bottom angle 18. 18 rear flange 2
By making the engagement of the engagement pieces 22 and 22 of 3.23 firm and difficult to remove, the bent piece 1 at the lower end of the side plate 6゜6
Bottom angle 18.1 to 0.10 fitting hole 11.11
The structure in which the protrusion 24.24 of the bottom flange 25.25 of No. 8 is fitted can be made unnecessary.

As described above, the present invention constructs a double box body by sequentially incorporating the top plate, side plates, home angle, bottom plate, and back plate based on the inner box, and the space between the inner box and the outer box. Since the foam insulation material is injected and foamed into a single piece to create the insulation box, the work process is much simpler than the conventional method where only the outer box is assembled first and then the inner box is fitted. Of course, the bottom plate and back plate are engaged and locked from the back side to the top plate, side plates, front plate, and the bobbin angle in the final process, so it is possible to reduce It is easy to pour the heat-melting material and a reliable seal can be achieved, and since the U-shaped grooves and the U-shaped grooves formed on the top plate, front plate, and side plates are arranged in a direction that intersects the screws, It can withstand the process of injecting and foaming the foam insulation material without using fastening members such as
・Since the main angle is engaged and fastened to the side plate by a locking mechanism consisting of an engaging piece and an engaging groove, it has an extremely simple structure and is remarkable in that the main angle can be attached easily and reliably. It can be effective.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of the heat insulating box of the present invention, Fig. 2 is a cross-sectional view of the main part taken along line A-A' in Fig. 1, and Fig. 3 is B-B in Fig. 1. 4 is a cross-sectional view of the main part taken along the line 'c' in Figure 1.
5 is an assembly relation diagram of the lower side plate and bottom angle of FIG. 1, FIG. 6 is an explanatory diagram of the assembled state of the insulation box of FIG. The attachment of the bottom plate and back plate of the heat insulating box shown in FIG. 5 is an explanatory diagram. 1... Inner box, 5... Flange, 6, 6
...Side plate, 7, 7.13...U-shaped groove, 8. 8.14...U-shaped groove, 12.
...Top plate, 16...Front board, 18.18.
...Bottom angle, 19...Bottom plate, 2
0.20... Guide rail, 22.22...
...Engagement piece, 27...Back plate, 28...
・Outer box, 30...Folded piece, 32.32...
...Thermofusible material, 33...Foam insulation material.

Claims (1)

[Scope of utility model registration request] a top plate and both side plates that are engaged with the upper edge and left and right side edges of the flange of the inner box through substantially U-shaped grooves formed in the front edge;
a front plate having a U-shaped groove attached to the lower edge of the inner box flange; and a U-shaped groove formed at the rear edges of the top plate and both sides so as to be substantially orthogonal to the U-shaped groove; , when the back plate is engaged with the U-shaped groove with a bent piece, and the U-shaped grooves of the top plate and both side plates are engaged with the inner box flange, the engagement of these engaging parts. Heat-melting material is heated and melted in the corners to temporarily fix and seal the outer box and inner box, the bottom plate is inserted into the bottom angle rail section attached to the bottom of both side panels, and the space on the outer surface side of the inner box. In a heat insulating box body made of a foamed heat insulating material injected and foamed into the part, the bottom angle plate is engaged and fastened to the side plate by a locking mechanism consisting of an engaging piece and an engaging groove. Box body.