JPS6183863A - Door for refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention utilizes the adhesive force of a foam insulation material to fix a packing mounting frame bent into a frame shape to a can flange (for a refrigerator). This is related to fii.

[Background of the invention]

The conventional fixing structure of this type of packing mounting frame was as shown in FIGS. 4 to 6.

In the figure, 1 is the seal engaging part 1a and the door inner plate mounting part 1.
2 is a can that forms the external appearance of the door, and is formed by bending an iron plate into a box shape. 2a indicates the flange of the can 2. The above-mentioned packing mounting frame 1 is attached to this flange. The part 2al is rotated and attached as shown by the broken line.This is because when filling the foam insulation material 3 used as the insulation material of this refrigerator door, as shown in FIG. This is because the sealed portion of the foamed heat insulating material 3 is formed between the attachment portion 1b of the narrow inner plate 4 of the packing attachment frame and the layer 5.

In other words, when the packing layer 5 presses the door inner plate mounting part 1b one push in the R1 direction, the packing mounting frame itself is designed so that the packing mounting frame can resist the pressing force of the packing layer and maintain its original position. It was necessary to provide a clamping groove IC, a holding leg 1d, and a locking piece 1e. For this reason, as shown in Figure 4, the packing mounting frame of this structure had a shape that could only be attached to the straight parts of the four sides, and there were also corners at the four corners that connected the packing mounting frames. Piece 6 was needed. Furthermore, there were other defects such as difficulty in controlling the dimensions of the above-mentioned packing mounting frame, which resulted in an increase in costs.

[Summary of the invention]

The present invention aims to solve such problems (i.e., the positional relationship between the sealing layer of the foam insulation filled in the door and the packing mounting frame is changed from the liner mounting part for fixing the door inner plate to the packing mounting frame). In addition to changing the length of the can flange to an inner rising piece that forms an engagement groove, the length of the can flange is set near the opposing inner rising piece of the packing mounting frame in order to expand the bonding area between the packing mounting frame and the foam insulation material. It is.

[Embodiments of the invention]

Hereinafter, details of the present invention will be explained with reference to an embodiment shown in Figs. 1 to 3. Reference numeral 11 denotes a door body equipped with the present invention, and this door body 11 includes a can 12, a packing mounting frame 3, and a foam insulation. material 14
(urethane foam), door inner plate 15, backing 16
, and screws 17 for fixing the door inner plate 15 to the seal mounting frame 131. Moreover, this door body 11 is
The front opening of the refrigerator main body 18 is closed via the backing 16.

Here, to explain the structure of the present invention in detail, the flange 12a of the can 12 mentioned above is set to have a dimension of 51 mm as shown in the figure, which is smaller than the conventional one, and the inside of the packing mounting frame 13, which will be described later, is smaller. It is set almost in the vicinity of the rising piece 13a'. The packing mounting frame 13 is formed from one piece such as extrusion molding, and is attached to the hook-shaped mounting portion 1 of the backing.
It has a locking groove 13b that engages the locking groove 6a. This lock p
t13b is formed by the inner rising piece 13a' and the outer rising piece 13a described above. 13C is the outer rising piece 13a from approximately the same plane as the outer rising piece 13a.
It is a cover piece formed by extending the. This cover piece 13C
is formed of a flexible member so as to press against the end of the rising piece 12b of the can 12. 13d shows the door inner plate attachment part. The seal attachment frame 13 is made up of upright pieces 13a, 13a' forming a locking groove 13b, a cover piece 13C, an N inner plate attachment part 13d, and the like.

This packing attachment frame 13 is fixed to the flange 12al of the can 12 by a foamed heat insulating material 14 (urethane foam). When filling the foam insulation material 14, the packing attachment frame 13 is partially (temporarily) fixed to the can 12 with tape 19, etc., and then put into the main body 20, and the assembled parts are covered with the adhesive layer 21. Press down.

The foamed heat insulating material 14 is filled in the space surrounded by the adhesive layer 21, the packing mounting frame 13, and the can 12. In the case of this application, the flange portion 12a of the can and the packing mounting frame 13
There is a possibility that the foamed insulation material may leak between the sealing part 21 of the sealing layer 21 and the sealing part 21 of the sealing layer 21 as shown in FIG.
Since this is done by pressing the inner rising piece 13a' of the packing attachment frame 13 against the flange portion 12a, leakage from between the can flange portion 12a and the backing attachment frame 12 (■) toward the front side of the egg is prevented. In other words, the length of the previous flange portion 12H is the same as the seal portion 21 of the attached layer 21.
The flange 12a of the can 12 is set to a length that can receive the load (pressing force) of the deposited layer 21 so that the packing mounting frame 13 pressed at point a does not fall toward the arrow R2 side. That is, the length of this flange 12a is the same as that of the packing mounting frame 1.
3. In the installed state, the length is set to approximately match the position of the inner rising piece 13a'. Therefore, the foamed heat insulating material 14 is provided at the part where the packing mounting frame 13 and the flange 12a of the can 12 overlap (this is rarely used, but even if it happens, it should be provided on the packing mounting frame 13 side). This is blocked by a large number of grooves 13e.

Due to this, the packing mounting frame 13 is attached to the previous flange 1.
The portion that does not polymerize with 2b is bonded to the foam insulation material 14 and the can 1
It is fixed to the flange portion of No. 2.

Therefore, in order to securely secure the seal attachment frame 13 to the can 12, it is better to shorten the length of the can flange 12a.

When attaching and fixing the packing mounting frame 13 having such a structure to a can, as shown in FIG.
Attach the cut groove 13f to the frame-shaped paper,
It is temporarily fixed with tape or the like, then placed in the foam layer, and as described above, the pressing part of the layer is pressed against the inner rising piece of the packing frame.

The cover piece 13c is usually made of soft fillet, and the cover piece 13C and the can 12 are attached with the can number plate mounting frame attached.
The can 12 is pressed against the can 12 in advance so that there is no gap between the can 12 and the can 12.

Also, when the pressing part of the adhesive layer is pushing the inner rising piece of the packing mounting frame, the adhesive layer is almost in contact with the door inner plate mounting part, so this door inner plate 81 is foamed. It is a heat insulating material that does not stick to a large amount.

〔Effect of the invention〕

As explained above, the present invention is made by bending the packing mounting frame consisting of the packing engaging part, the door inner plate mounting part, etc. into a frame shape, and by bending the packing mounting frame, which is composed of the packing engaging part and the door inner plate mounting part, etc., and by bending the packing mounting frame into a frame shape. Attach it to cover the side edge of the can,
Since the packing mounting frame is fixed to the can flange using the adhesive strength of the foam insulation material, it is possible to attach a single band-shaped packing mounting frame to the can without making any major changes to conventional equipment. It is simple and easy to install, and since it does not involve removing the conventional corner pieces or the like and fixing the packing mounting frame to the can by utilizing the shape of the packing mounting frame itself, it is not possible to extrude or fix the packing mounting frame to the can. Since it does not take time to manage dimensions, etc., costs are reduced.

Further, since the length of the flange of the can is set to the vicinity of the inner rising piece forming the packing engagement groove, the packing attachment frame and the can are reliably bonded.

In addition, an adhesive piece was added to the part of the packing mounting frame on the side of the insulation material to increase the contact area with the foamed insulation material. It is something that will be done.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main parts of a refrigerator door equipped with the present invention, Fig.
The figure shows how a can with a packing mounting frame partially assembled is assembled when filling the foam insulation material, Figure 3 is a perspective view showing the can and packing mounting frame assembled, and Fig. 4 is a conventional Figure 5 is a cross-sectional view taken along line A-A in Figure 4, and Figure 6 is a view of the refrigerator door before filling with foam insulation material. 11... Dish body, 12... Can, 12a... Flange, 12b... Standing piece, 13... Packing mounting frame, 13a... Outside rising piece, 13b...Inner rising piece, 13C...Covering piece, 13d...Door inner plate mounting part,
14... Foam insulation material, 15... Door inner plate, 16...
Backing, 17 Fig. 1

Claims (1)

[Claims] 1. The packing mounting frame consisting of the packing engaging part and the door inner plate mounting part is bent into a frame shape, and a soft flexible material is formed at the end of the outer rising piece that forms the packing engaging groove. A door for a refrigerator, characterized in that a fin is attached to cover the side edge of a can, and the packing mounting frame is fixed to the can flange using the adhesive force of a foamed heat insulating material. 2. The refrigerator door according to claim 1, wherein the length of the flange of the can is set to the vicinity of the inner rising piece forming the packing engagement groove. 3. The refrigerator door according to claim 1, characterized in that an adhesive piece is provided on a portion of the packing mounting frame located on the heat insulating material side to increase the contact area with the foamed heat insulating material.