JPH11230668A - Door for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a mounting operation of a reinforcing plate at an inner plate by engaging a first protrusion with a first long hole and engaging a second protrusion with a second hole in the case of mounting the reinforcing plate at the inner plate. SOLUTION: First protrusions 7b each having an undercut part 7e are integrally molded at each two at right and left sides at a mounting side of a reinforcing plate 13 of an inner plate 7. And, second protrusions 7c are integrally molded at intermediate parts of the two protrusions 7b of one side in the same direction, and the protrusions 7b and 7c are disposed together at an inside of a plurality of mounting holes 7d of a frame. And, at the time of mounting the plate 13 at the plate 7, a first long hole 13a of the plate 13 is dropped to the protrusion 7b of the plate 7, laterally slid to engage an end of the hole 13a with the undercut part 7e of the protrusion 7b, and simultaneously a second hole 13b is engaged with a second protrusion 7c so as not to disengage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator door.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing the appearance of a conventional refrigerator. In FIG.
Are freezer doors. The vegetable room door 2 and the freezer room doors 3 and 4 are drawer-type doors. FIG. 4 is a longitudinal sectional view of a conventional refrigerator.
It is a figure showing the state where the vegetable room door was pulled out. In the figure,
Reference numeral 5 denotes a frame fixed to the inside of a vegetable room door (hereinafter referred to as a door) 2 by screws 6 via an inner plate 7, and reference numeral 8 denotes a roller attached to a rear end of the frame 5 and provided on a refrigerator main body 9.
0, the roller 11 provided on the refrigerator body 9
The door 2 is opened and closed back and forth while supporting the frame 5.
Numeral 12 denotes a vegetable case, and a flange 12a of the vegetable case is mounted on the upper surface of the frame 5. The freezer doors 3 and 4
Has the same structure, and the description is omitted.

FIG. 5 is a view showing how the door 2 and the frame 5 are attached to each other.
It is buried in a fixed state, and is passed through a screw 6 to a hole 5b provided on a mounting side 5a of the frame 5 and is fixed by a screw to a reinforcing plate 13 installed on the back side (insulating material side) of the inner plate 7.

FIG. 6 is a sectional view taken along the line Y--Y of FIG. 3. In FIG. 6, reference numeral 7a denotes a gasket insertion groove provided on the outer periphery of the inner plate 7, and a gasket (omitted) is mounted after the heat insulating material 15 is injected and foamed. You. In recent years, a method of mounting a gasket on a door of a refrigerator generally includes a method of providing a gasket insertion groove from an extruded part sash made of a PVC resin to an inner plate as a measure for cost reduction and waste home appliances. The inner plate 7 and the reinforcing plate 13 are buried in the heat insulating material 15 on the back side of the inner plate 7 in a state where the inner plate 7 and the reinforcing plate 13 are fixed in advance with the screws 14, and the door 2 is set on the lower side and the inner plate 7 is set on the upper side. 15 is injected and foamed (FIG. 6 shows the filling of the heat insulating material 15).

[0005]

Since the door of the conventional refrigerator is constructed as described above, the reinforcing plate 13 is attached to the inner plate 7.
The screw 14 is required for the mounting work, and a screwdriver is required as a tool. In addition, when the heat insulating material 15 is injected and foamed, the reinforcing plate 13 is located below the inner plate 7 at a position remote from the frame mounting position. The heat insulating material 15 invades between the inner plate 7 and the reinforcing plate 13 which are the mounting surfaces of the frame 5 (see FIG. 6), and the flatness of the mounting surface of the frame 5 is not stabilized, and as a result, there are many door mounting defects. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the work of attaching a reinforcing plate to an inner plate can be easily performed. It is an object of the present invention to provide an inexpensive and high-quality refrigerator door in which a heat insulating material does not penetrate into the frame and the flatness of the mounting surface of the frame is not stabilized.

[0007]

A door of a refrigerator according to the present invention has a door main body filled with a heat insulating material, and a gasket mounting portion provided inside the main body and formed by vacuum forming. Fixed to the inner plate and the heat insulating material side of this inner plate,
A reinforcing plate to which a frame for mounting a storage case for storing foods and the like is attached, a first convex portion provided on the heat insulating material side of the inner plate, formed at least at two positions on each of right and left, and having an undercut portion; A second projection formed between the left and right first projections and a reinforcing plate are provided on the reinforcing plate, and engage with the first convex when the reinforcing plate is attached to the inner plate, and the end portion is an undercut portion. And a second hole provided in the reinforcing plate and engaged with the second convex portion when the reinforcing plate is attached to the inner plate.

[0008] The first convex portion, the second convex portion, the first elongated hole portion,
The second hole is disposed so as to be located inside a frame mounting hole for mounting a frame provided on the inner plate and the reinforcing plate.

In addition, the center of gravity of the reinforcing plate is arranged near the center between the undercut portions of the first convex portions formed at two places on the left and right sides of the inner plate.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a mounting state of a reinforcing plate according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view taken along the line ZZ of FIG. In the figure, two first protrusions 7b having an undercut portion 7e are integrally formed on the side of the inner plate 7 on which the reinforcing plate 13 is mounted (one side is omitted). In the middle of the two first protrusions 7b on one side, a second protrusion 7c is integrally formed in the same direction, and both the first protrusion 7b and the second protrusion 7c are a plurality of frames 5 in the frame 5. It is arranged inside the mounting hole 7d.

A first elongated hole 13a is formed in the reinforcing plate 13 in two right and left directions.
One slot (one side omitted), and one slot 1 on one side
A second hole 13b connected to the center of 3a is formed inside the plurality of mounting holes 13c of the frame 5. The second hole 13b may be formed independently without being connected to the first long hole 13a.

When the reinforcing plate 13 is attached to the inner plate 7, the first elongated hole 13a of the reinforcing plate 13 is dropped into the first convex portion 7b of the inner plate 7 and slid in the lateral direction to thereby form the first elongated hole 13a. Is hooked on the undercut portion 7e of the first convex portion 7b. At this time, when the reinforcing plate 13 is dropped, the inner plate 7 is deformed and escapes to the lower side when the reinforcing plate 13 is dropped. However, the second convex portion 7c is slid so that the end of the first elongated hole portion 13a becomes the first convex portion 7b. When the second convex portion 7c comes into contact with the undercut portion 7e, the deformation of the inner plate 7 is released because the second convex portion 7c matches the second hole portion 13b, so that the second hole portion 13b and the second convex portion 7c are engaged. So that they do not come off.

With the above configuration, the reinforcing plate 13 is attached to the inner plate 7.
Since no other members such as screws and tools are required for the mounting work, the mounting work can be made very easy and inexpensive.
Also, the fixing position is a plurality of screw holes 7d for mounting the frame.
Reinforcement plate 1 around frame attachment part
3 and the inner plate 7 can be reliably mated, so that when the heat insulating material 15 is injected and foamed, the heat insulating material 15 enters between the reinforcing plate 13 and the inner plate 7 and the flatness of the mounting surface of the frame 5. Can be prevented from becoming unstable, and the mounting failure of the door 2 can be prevented.
By providing the first convex portion 7b and the second convex portion 7c on the heat insulating material side, the design is not impaired.

The undercut portions 7e of the first convex portions 7b at the two right and left portions of the inner plate 7 are arranged such that the center of gravity (A / 2) of the reinforcing plate 13 is equal to the distance (2 × B) between the undercut 7 portions 7e. The end of the first long hole 13a of the reinforcing plate 13 is hooked so as to coincide with the center. With such a configuration, even when the inner plate 7 is pulled downward by the weight of the reinforcing plate 13 during injection firing, since the respective portions bend uniformly, the heat insulating material 15 moves between the reinforcing plate 13 and the inner plate 7. Difficult to invade.

[0015]

According to the present invention, there is provided a refrigerator door according to the present invention, comprising: a door body filled with a heat insulating material; an inner plate provided inside the body, formed by vacuum forming and having a gasket mounting portion; A reinforcing plate fixed to the heat insulating material side of the inner plate, to which a frame for mounting a storage case for storing foods and the like is attached; A first convex portion having an undercut portion, a second convex portion formed between the left and right first convex portions, and a first convex portion provided on the reinforcing plate when the reinforcing plate is attached to the inner plate. And a second elongated hole provided on the reinforcing plate and having an end engaged with the second convex portion when the reinforcing plate is attached to the inner plate. The installation work of the reinforcing plate to the inner plate Wood is not necessary, the mounting work can be easily because the tool is also unnecessary.

Also, a first convex portion, a second convex portion, a first elongated hole portion,
Since the second hole portion is disposed so as to be located inside the frame mounting hole portion for mounting the frame provided on the inner plate and the reinforcing plate, the reinforcing plate and the inner plate around the frame mounting portion surely face each other. Since the heat insulating material can be adjusted, the heat insulating material does not enter between the reinforcing plate and the inner plate when the heat insulating material is injected and foamed, so that the flatness of the mounting surface of the frame is not stabilized, and the door mounting defect can be prevented.

Further, since the center of gravity of the reinforcing plate is disposed near the center between the undercut portions of the first convex portions formed at the two positions on the left and right sides of the inner plate, the reinforcing plate is used when the heat insulating material is injected and foamed. Infiltration of the heat insulating material between the inner plate and the inner plate can be further suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view of mounting a reinforcing plate according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line ZZ of FIG.

FIG. 3 is an external perspective view of a conventional refrigerator.

FIG. 4 is a longitudinal sectional view of a conventional refrigerator.

FIG. 5 is an installation diagram of a door and a frame of a conventional refrigerator.

FIG. 6 is a sectional view taken along line YY of FIG. 3;

[Explanation of symbols]

2 door, 5 frame, 7 inner plate, 7b first convex portion, 7
c 2nd convex part, 7e undercut part, 13 reinforcing plates,
13a 1st long hole part, 13b 2nd hole part, 15 heat insulating material.

Claims (3)

[Claims] 1. A door body filled with a heat insulating material, an inner plate provided inside the main body, formed by vacuum forming and having a gasket mounting portion, and a heat insulating material side of the inner plate. A reinforcing plate, which is fixed and is provided with a frame on which a storage case for storing foods and the like is placed; and A first convex portion, a second convex portion formed between the left and right first convex portions, and a second convex portion provided on the reinforcing plate, and engaging with the first convex portion when attaching the reinforcing plate to the inner plate. A first elongated hole portion whose end is hooked on the undercut portion; and a second hole portion provided on the reinforcing plate and engaging with the second convex portion when attaching the reinforcing plate to the inner plate. And a refrigerator door comprising: 2. The first projection, the second projection, a first slot,
The refrigerator door according to claim 1, wherein the second hole portion is arranged so as to be located inside a frame mounting hole portion for mounting the frame provided on the inner plate and the reinforcing plate. 3. The center of gravity of the reinforcing plate is arranged near the center between the undercut portions of the first convex portions formed at two positions on each of the left and right sides of the inner plate. Refrigerator door.