JPS5937665Y2 - insulation door - Google Patents

Description

[Detailed explanation of the invention] The invention relates to insulated doors for refrigerators, etc., and in particular, a decorative board is attached to the front of the front panel of the door, and a handle is attached to the front of this decorative board.The structure has been improved and strengthened. The present invention provides an insulating door that is sufficient in terms of performance and has a simple assembly structure.

Next, an unconceived embodiment will be described in detail based on the drawings.

Reference numeral 1 denotes an insulating door that opens and closes the front opening of the refrigerator, and has the following configuration.

That is, 4 is a side wall 4A formed by extrusion molding a synthetic resin material,
A front flange 4B that protrudes inward from the side wall 4A and has a first presser portion 12A formed on the rear surface of its tip end.
A second part located away from A and under the external force of the first presser part
A presser part 12B is formed on the front surface of the front flange 4B.
A presser flange 4D that is shorter than the side wall 4A and protrudes inward from the side wall 4A, and a rear flange 4 that further protrudes inward from the side wall 4A.
A rod-shaped body integrally formed with C is attached to each flange 4B, 4C at a predetermined length position.

This door frame body is made into a frame shape by cutting 4D into a substantially V-shape 11 and bending it at that part 17.

Reference numeral 2A designates a rectangular first front plate, which is arranged so as to close part of the opening 6 formed by the front flanges 4B of the door frame 4, that is, the front flanges 4B at positions corresponding to the top, bottom, left and right sides of the door. The three side ends of the top, bottom and right side of the front plate 2A of 1 are inserted and held between the first and second holding parts 12A and 12B, and the door frame 4 is bent at the V-shaped cutout. Pressing part 12A when forming a frame shape.

It is inserted between 12B.

2B is a rectangular second front plate, and the three side ends of the upper, lower and left sides are placed inside the second holding part 12B so as to close the remaining part 6A of the opening 6 formed by the front flange 4B. It is in contact with the first presser portion 12A.

This second front plate 2B is installed so that the opening made by the rear flange 4C of the door frame 4 bent into a substantially frame shape faces upward, as shown in FIG. 6, and is inserted diagonally from this opening. By placing it on the first holding portion 12A, it can be placed at a predetermined position.

Therefore, the assembly work is extremely simple compared to the method of inserting the end portion into the groove 5 of the door frame 4.

Reference numeral 8 denotes a pressing holding member, which is attached to the side wall 4A and the rear flange 4C of the rear door frame 4 in which the front plate 2B is arranged on the door frame 4 so as to press the left side, upper and lower sides, or only the left side of the second front plate 2B.
The member 8 is pressed by a metal door frame reinforcing member with a U-shaped cross section inserted and held in the space created by the holding flange 4D, extending over approximately the entire length of the left side of the door frame 4c/), or even slightly extending to the upper and lower sides. The upper, lower, and left end portions of the second front plate 2B are pressed against the first holding portion 12A by the side 8A.

γ is a double-sided adhesive tape that joins the remaining ends of the first and second front plates 2A and 2B.

This joining forms a series of front panels of the door 1.

Reference numeral 9 indicates a door frame reinforcing member inserted into the door frame 4 to reinforce the left side and upper and lower sides of the door 1. Reference numeral 10 indicates a door frame reinforcing member inserted into the door frame 4 to reinforce the left side and upper and lower sides of the door 1. Door frame 4
The front plates 2A and 2B are inserted into the first holding part 12A.
A press holding member that presses the front plate 2A, 2B together with the door frame reinforcing member 8 presses the front plates 2A, 2B against the first holding portion 12A.

FIG. 4 shows another embodiment in which the second front plate 2B is pressed and held by the first holding portion 12A.

In this structure, the second
The end of the front plate 2B is pressed against the back surface of the presser flange 4D by the suppressing and holding member 8 which also serves as a reinforcing member of the door frame 4, and the second front plate 2B is pressed against the first presser portion 12A.

The first and second front plates 2A shown in FIG.

2B shows another embodiment of the bonding device, in which the left end of the first front plate 2A is inserted into the groove on the right side of the bonding member 14, and the right end of the second front plate 2B is attached to the double-sided adhesive tape 13. It is adhered to the back surface of the left side of the joining member 14 at.

In addition, in the opening structure, the second front plate 2B and the joining member 14 are bonded by an adhesive tape 15 instead of the double-sided adhesive tape 13 of the structure A.

The space separately created by the door frame 4, the first front plate 2A, and the second front plate 2B is filled with a heat insulating material 16 such as foamed polyurethane using an in-situ foaming method. Material 16
are the door frame 4, the first front plate 2A, and the second front plate 2B.
Glue them together to integrate them.

The back surface of the door is covered by a door rear plate screwed on four sides to the rear flange 4C.

3 is a handle attached to the second front plate 2B.

The inventive feature is that the three side ends of the first and second front plates are held by the suppression holding member on the door frame, and the other side ends are held against each front plate. A series of front plates are constructed by joining them together with a joining member, and each front plate is adhered to the heat insulating material and combined with the door frame to maintain sufficient strength.

Therefore, even when the handle is attached to the second front plate and the heat insulating door is opened and closed, the second front plate does not become sloppy, resulting in a durable heat insulating door.

Furthermore, even if the second front plate is used as a decorative base plate for the handle and has various thicknesses and shapes, it will not have a complicated structure to be inserted into the groove of the door frame, but will be held in contact with the first holding part. By doing so, the second front plate having a different thickness can be held without changing the shape of the door frame, and the second front plate can be easily assembled into the door frame. It is something that can be done.

Therefore, in conventional doors, a decorative panel is attached to the front of the front panel of the door, and a handle is attached to the front of the panel.
In order to prevent this decorative plate from lifting off from the front plate due to handle operation or aging, a large number of screws are required.
The structure is simpler, the number of parts can be reduced, and the cost is lower than that which required an additional decorative member to cover the screw.

In addition, it is possible to apply the present invention to different designs by changing the sizes of the first and second front plates.

[Brief explanation of the drawing]

Each figure shows an example of an unconventional heat-insulating door, and FIG. 1 is a front view of a refrigerator equipped with a heat-insulating door, and FIG.
3 is a sectional view taken along the line BB' in FIG. 1, FIG. 4 is a sectional view of main parts of another embodiment, and FIG.
sectional views of other mutually different embodiments of the joints of the front plates of;
FIG. 6 is an exploded rear perspective view of essential parts. 2A...first front plate, 2B...second front plate, 4
...Door frame, 1,13...Double-sided adhesive tape, 12A
...first presser section, 12B...second presser section.

Claims (1)

[Scope of utility model registration request] A side wall, a front flange protruding from the side wall toward the inner cutter and forming a first holding part on the back surface of the tip, and a second holding part located away from the first holding part are formed on the front surface of the tip. A rod-shaped synthetic resin body having a presser flange that is shorter than the front flange and protrudes inwardly from the side wall, and a rear flange that further protrudes from the side wall toward the inner blade, is held at a predetermined length position to approximately V.
A door frame body which is bent at the letter-shaped cut portion to form a frame shape, and a front flange of the door frame body which is rectangular in shape. and a first front plate inserted and held between the second holding parts, and the first front plate having a rectangular shape with three side ends inside the second holding part so as to close the remaining part of the opening. a second front plate in contact with the first presser; and a press inserted into the door frame to press and hold the three side ends of the second front plate against the first presser. A holding member and a joining device for joining the remaining two sides of the first and second front panels to each other, and are made of these so as to be bonded to the first and second front panels and the door frame. An insulated door made by filling the space with foam insulation material.