JP3364425B2 - Refrigerator door - Google Patents

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 an external perspective view of a conventional refrigerator. In the figure, 1 is a refrigerator compartment door, 2 is a vegetable compartment door, 3, 4
Are both freezer doors. The vegetable compartment door 2 and the freezer compartment doors 3 and 4 are drawer type doors. FIG. 4 is a vertical sectional view of a conventional refrigerator,
It is a figure which shows the state which pulled out the vegetable compartment door. In the figure,
5 is a frame fixed to the inside of a vegetable compartment door (hereinafter referred to as a door) 2 with screws 6 via an inner plate 7, and 8 is a roller attached to the rear end of the frame 5 and a rail 1 provided on a refrigerator main body 9
Roller 11 that slides inside 0 and is installed in the refrigerator body 9
The door 2 is opened and closed while supporting the frame 5.
A vegetable case 12 has a vegetable case flange 12a mounted on the upper surface of the frame 5. The freezer doors 3 and 4
Also has the same structure, and its description is omitted.

FIG. 5 is a view showing how the door 2 and the frame 5 are attached. A reinforcing plate 13 is previously provided with a screw 14 on the back side (heat insulating material side) of the inner plate 7.
It is embedded in a fixed state, and a screw 6 is passed through a hole 5b provided in the attachment side 5a of the frame 5 and fixed to a reinforcing plate 13 installed on the back side (heat insulating material side) of the inner plate 7.

FIG. 6 is a sectional view taken along the line YY of FIG. 3, in which reference numeral 7a is a gasket insertion groove provided on the outer periphery of the inner plate 7, and a gasket (omitted) is attached after the foaming and filling of the heat insulating material 15. It In recent years, as a method of attaching a gasket to a refrigerator door, a method of directly attaching a gasket insertion groove to an inner plate from a separate component sash extruded of vinyl chloride resin is generally used as a measure for cost reduction and waste home appliances. The inner plate 7 and the reinforcing plate 13 are embedded in advance on the side of the heat insulating material 15 on the back side of the inner plate 7 in a state of being fixed 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, and the heat insulating material is set. 15 is injected and foamed (FIG. 6 shows the process of filling the heat insulating material 15).

[0005]

Since the door of the conventional refrigerator is constructed as described above, the reinforcing plate 13 for the inner plate 7 is provided.
The screw 14 is required for the mounting work of No. 1, and a screwdriver is required as a tool. In addition, since the reinforcing plate 13 becomes the lower part of the inner plate 7 when the heat insulating material 15 is injected and foamed at a position apart from the frame mounting position, the inner plate 7 is pulled downward by the weight of the reinforcing plate 13 and the frame 5 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), the flatness of the mounting surface of the frame 5 is not stable, and as a result there are many door mounting defects. There was a problem.

The present invention has been made to solve the above problems, and the work of attaching the reinforcing plate to the inner plate can be facilitated, and the space between the reinforcing plate and the inner plate can be increased during the injection and foaming of the heat insulating material. It is an object of the present invention to provide an inexpensive and high-quality refrigerator door in which the heat insulating material does not enter and the flatness of the mounting surface of the frame is not stable.

[0007]

A refrigerator door according to the present invention has a door main body whose inside is filled with a heat insulating material, a vacuum main body provided inside the main body, and a gasket mounting portion. 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; and a first convex portion provided on the heat insulating material side of the inner plate, formed at least at each of two left and right sides, and having an undercut portion, The second convex portion formed between the left and right first convex portions is provided on the reinforcing plate, engages with the first convex portion when the reinforcing plate is attached to the inner plate, and the end portion is an undercut portion. And a second hole that is provided in the reinforcing plate and that engages with the second convex portion when the reinforcing plate is attached to the inner plate.

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

Further, the center of gravity of the reinforcing plate is arranged in the vicinity of 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.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a perspective view of mounting a reinforcing plate according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view taken along line ZZ of FIG. In the figure, two first convex portions 7b having undercut portions 7e are integrally formed on the side of the inner plate 7 on which the reinforcing plate 13 is attached (one side omitted). In addition, a second convex portion 7c is integrally formed in the same direction in the middle of the two first convex portions 7b on one side, and both the first convex portion 7b and the second convex portion 7c are a plurality of frames 5 of the frame 5. It is arranged inside the mounting hole 7d.

The reinforcing plate 13 has the first elongated hole portions 13a on the left and right sides.
1 slot on each side (one side omitted) and 1 slot on each side
A second hole portion 13b connected to the center side of 3a is formed inside the plurality of mounting hole portions 13c of the frame 5. The second hole 13b may be formed independently without being connected to the first elongated hole 13a.

When the reinforcing plate 13 is attached to the inner plate 7, the first elongated hole portion 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 so that the first elongated hole portion 13a is formed. Is hooked on the undercut portion 7e of the first convex portion 7b. At that time, when the reinforcing plate 13 is dropped into the second convex portion 7c, the inner plate 7 is deformed and escapes to the lower side, but by sliding the end portion of the first elongated hole portion 13a to the first convex portion 7b. When contacting the undercut portion 7e, the second convex portion 7c matches the second hole portion 13b, so that the deformation of the inner plate 7 is released, so that the second hole portion 13b and the second convex portion 7c are engaged. It does not come off.

With the above structure, the reinforcing plate 13 for the inner plate 7 is provided.
Since other members such as screws are not necessary for the installation work of No. and no tools are required, the installation work is very easy and the cost can be reduced.
Further, the fixing position is also a plurality of screw holes 7d for mounting the frame.
Since it is placed inside the frame, the reinforcement plate around the frame attachment part 1
3 and the inner plate 7 can be reliably brought into face-to-face contact with each other, 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 is improved. Can be prevented from becoming unstable, and the door 2 can be prevented from being improperly mounted.
By providing the first convex portion 7b and the second convex portion 7c on the heat insulating material side, the designability is not impaired.

In addition, in the undercut portions 7e of the first convex portions 7b at two positions on the left and right of the inner plate 7, the center of gravity (A / 2) of the reinforcing plate 13 has a distance (2 × B) between the undercut 7 portions 7e. The end of the first elongated hole portion 13a of the reinforcing plate 13 is hooked so as to coincide with the center. With this configuration, even when the inner plate 7 is pulled downward by the weight of the reinforcing plate 13 during injection and firing, each part is uniformly bent, so that the heat insulating material 15 is provided between the reinforcing plate 13 and the inner plate 7. Hard to get into.

[0015]

The door of the refrigerator according to the present invention includes a door main body having a heat insulating material filled therein, an inner plate provided inside the main body, formed by vacuum forming, and having a gasket mounting portion, The reinforcing plate is fixed to the heat insulating material side of the inner plate, and is provided on the heat insulating material side of the inner plate, and the reinforcing plate to which the frame for mounting the storage case for storing food 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 reinforcing plate, and the first convex portion when the reinforcing plate is attached to the inner plate. A first elongated hole portion that engages with the undercut portion, and a second hole portion that is provided in the reinforcing plate and that engages with the second convex portion when the reinforcing plate is attached to the inner plate. Since it has a different structure, when attaching the reinforcing plate to the inner plate, other screws Wood is not necessary, the mounting work can be easily because the tool is also unnecessary.

The first convex portion, the second convex portion, the first elongated hole portion,
Since the second hole portion is arranged 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 can surely face each other. Since the heat insulating materials can be matched with each other, the heat insulating material does not enter the space 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 stable, and the door mounting failure can be prevented.

Further, since 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 right and left sides of the inner plate, the reinforcing plate at the time of injecting and foaming the heat insulating material. It is possible to further prevent the heat insulating material from entering between the inner plate and the inner plate.

[Brief description of 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 vertical cross-sectional view of a conventional refrigerator.

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

6 is a cross-sectional view taken along the line YY of FIG.

[Explanation of symbols]

2 doors, 5 frames, 7 inner plates, 7b first protrusions, 7
c 2nd convex part, 7e undercut part, 13 reinforcing plate,
13a 1st long hole part, 13b 2nd hole part, 15 Heat insulating material.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F25D 23/08

Claims (3)

(57) [Claims] 1. A door body having an inside filled with a heat insulating material, an inner plate provided inside the main body and 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 to which a frame for mounting a storage case for storing foods and the like is attached; and a reinforcing plate which is provided on the heat insulating material side of the inner plate, is formed at least at two positions on each of the left and right sides, and has an undercut portion 1 convex part, a 2nd convex part formed between each of these 1st convex parts on either side, and is provided in the said reinforcement board, and when attaching the said reinforcement board to the said inner plate, it engages with the said 1st projection part. And a second elongated hole portion having an end portion hooked to the undercut portion, the second hole portion provided on the reinforcing plate, and engaging with the second convex portion when the reinforcing plate is attached to the inner plate. And a refrigerator door characterized by having. 2. The first convex portion, the second convex portion, the first elongated hole portion,
The door of the refrigerator 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 in the vicinity of the center between the undercut parts of the first protrusions formed at two positions on the left and right of the inner plate, respectively. Refrigerator door.