JPH09152264A - Door of refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the count of parts and the number of places to be sealed to cut down costs of a box body that includes a door main body and a door back that covers the back and is filled with foamed insulating material, by forming a sealing rib that continuously comes in contact with the edge of the door back without a gap. SOLUTION: A door of a refrigerator has a box body that includes a door main body 2 that serves as the outer surface of the door and a door back 5 that forms the back of the door, and foamed insulating material is filled in the inner vacant space of the box body. A sealing rib 4 that is located inside the door main body a constant distance apart from a lateral frame member 3a that forms the side of the door main body 1 is molded as an integral part of the door main body 2. A packing insert groove 6 is formed along the circumference of the door back 5, and a packing 7 is attached in the groove 6 by adhesion or press-fitting. After a circumferential face 5a of the door back 5 is put on an edge 4b of the sealing rib 4, foamed insulting material is filled in the box body so that all the components are formed into one piece.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A conventional refrigerator door is disclosed in JP-A-3-916.
As disclosed in Japanese Patent Laid-Open No. 83-83, an upper cap and a lower cap are fitted into a door plate, a door sash is attached to the back surface of the door plate to form a box body by a door back, and the inside thereof is filled with a heat insulating material.

The conventional refrigerator door as described above is constructed as shown in FIG. 6. In FIG. 6, 11 is an upper cap, 12 is a lower cap, and 13 is an outer surface of the refrigerator door. It is a plate. And the upper cap 1
1 is from above, lower cap 12 is from below, door plate 13
It is embedded in and integrated. Further, 14 is a door sash consisting of 4 pieces of upper, lower, left and right, and 15 is a door back which is an inner surface of the door of the refrigerator, which is located on the back surface of the door plate 13 and includes the upper cap 11, the lower cap 12, the door plate 1
3, the door sash 14 and the door back 15 form a box body, and the space inside the box body is filled with the foamed heat insulating material to form a refrigerator door.

And, 7 is a packing, which is a door sash 14
It is inserted into an insertion groove (not shown) formed in the refrigerator to prevent leakage of cold air in the refrigerator. A guard 16 is fitted into the door back 15 to form a stocker for small articles.

[0005]

Since the door of the conventional refrigerator is constructed as described above, the upper cap and the lower cap are fitted into the door plate and integrated by a heat insulating material,
After that, fix the door back with screws etc., insert the packing into the door sash, and fit the door back into the guard, so there are many parts, and also the upper cap and the door plate, the lower cap and the door plate, the door sash and the door plate. At each joint, a seal was required to prevent the foamed heat insulating material from leaking, and the number of assembling steps increased, resulting in a high cost.

It is an object of the present invention to provide a refrigerator door which can reduce the number of parts and the number of places where sealing is required.

[0007]

An air conditioner according to the present invention comprises:
In order to achieve the above object, the invention according to claim 1 is a door main body formed by integrally molding a front plate and a frame, a door back covering the back surface of the door main body, the door main body and the door back. A door of a refrigerator formed of a foamed heat insulating material filled in a box body, which is formed integrally with the door body and has a sealing rib that is in continuous contact with the edge portion of the door back without a gap. It is a thing.

In addition to the invention according to claim 1, the invention according to claim 2 is characterized in that, in addition to the invention according to claim 1, a supporting rib that abuts against the door back and supports the door back is intermittently provided in the vicinity of the sealing rib. Is.

Further, the invention according to claim 3 is the invention according to claim 1.
In addition to the invention described above, the door body is formed to have a shallow depth near the joint between the door body and the sealing rib.

The invention according to claim 4 is the same as claim 1.
In addition to the described invention, a sealing material is arranged between the sealing rib and the door back.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a refrigerator door of the present invention will be described below with reference to FIGS.

The first embodiment of the refrigerator door of the present invention is as follows:
It is configured as shown in FIG. 1 to FIG. 3, and in FIG. 1, 1 is a door main body which is an outer surface of a refrigerator door, 2 is a rectangular front plate 3a which constitutes a front surface of the door main body 1, and 3a. , 3a
Is a horizontal frame body that constitutes the left and right side surfaces of the door body 1, 3b is a lower frame body that constitutes the lower surface of the door body 1, 3c is an upper frame body that constitutes the upper surface of the door body 1, and 5 is the rear surface of the refrigerator door Is the door back that constitutes the. The door body 1 is formed by integrally molding a frame body over the entire outer circumference of a gently curved rectangular front plate. Then, a box body is constituted by the door body 1 and the door back 5, and a space inside the box body is filled with a foamed heat insulating material to constitute a refrigerator door.

FIG. 2 is a cross-sectional view of the horizontal frame of the door body 1 in which the refrigerator door of FIG. 1 is assembled. In FIG. 2, 2 is a front plate of the door body 1 and 3a is a side of the door body 1. The lateral frame members 4 constituting the side surfaces are continuously formed in parallel with the lateral frame member 3a at a certain distance in parallel with each other to form sealing ribs 4 inside the door main body 1.
Reference numeral a is a reinforcing portion which is provided at a predetermined interval and connects the side surface of the horizontal frame body 3a and the side surface of the sealing rib 4 to prevent deformation of the sealing rib 4. Further, 6 is a packing insertion groove formed continuously on the outer peripheral portion of the door back 5, and the packing 7 is inserted into the packing insertion groove 6 and fixed by preventing the packing 7 from coming off by adhesion or press fitting. That is, the side surface of the door body 1 is composed of the front plate 2, the frame 3a, the sealing rib 4, and the reinforcing portion 4a, and the outer peripheral surface 5a of the door back 5 is placed on the end portion 4b of the sealing rib 4 to form foam. It is integrated by filling it with a heat insulating material.

FIG. 3 is a sectional view of the lower frame of the door body 1 in which the refrigerator door of FIG. 1 is assembled. In FIG. 3, 2 is a front plate of the door body 1 and 3b is a lower surface of the door body 1. The lower frame body 40 is a supporting wall formed by projecting at a right angle from the vicinity of the end portion (door back 5 side) of the lower frame body 3b toward the inner surface, and the surface of the supporting wall 40 is the outer peripheral surface of the door back 5. The door back 5 is supported by abutting against 5a. Further, 10 is a reinforcing rib projecting from the lower frame 3b toward the inner surface side, 10a is a reinforcing material, and is a supporting wall 40 and a reinforcing rib 10, and a reinforcing rib 10 and a reinforcing rib 10, and a reinforcing rib. It is a reinforcing member that connects between the rib 10 and the front plate 2 to reinforce. It should be noted that instead of the support wall 40, the sealing rib 4 shown in FIG. 2 may be provided. Although not shown, the upper frame 3c of the door body 1 has the same structure as the lower frame 3b shown in FIG.

However, if the door body 1 is placed below and the door back 5 is placed on the door body 1, the door back 5 bends downward only by the support of the sealing ribs 4, and the position is displaced or the sealing failure occurs. Cause. The second embodiment described below prevents this.

The second embodiment of the refrigerator door of the present invention is as follows:
It is configured as shown in FIG. 4, and in FIG.
Reference numeral 8 denotes a supporting rib of the door back integrally formed inside the door body 1 in parallel with the sealing rib 4 at a certain distance. By providing the supporting rib 8 intermittently, a vicinity of the sealing rib 4 is provided. Up to when foamed insulation enters. Further, 8a is a reinforcing portion which is provided at a predetermined interval and connects the side surface of the sealing rib 4 and the side surface of the door back supporting rib 8 to prevent deformation of the door back supporting rib 8.

Further, 9 is a lateral frame of the door main body 1 which is curved, and is indicated by a two-dot chain line in the figure. Thus, by forming the lateral frame body 9, the rising length of the sealing rib 4 can be shortened, and the sealing rib 4 is less likely to be deformed. That is, by making the frame 3a of the door body 1 oblique and shortening the sealing rib 4, the moldability can be improved and the strength of the sealing rib 4 can be increased.
It should be noted that the shorter the sealing rib 4 is, the more advantageous it is in terms of moldability and mold strength, and the lateral frame 3a of the door body 1 may be partially or entirely slanted.

The third embodiment of the refrigerator door of the present invention is as follows:
It is configured as shown in FIG. 5, and in FIG.
Reference numeral 10 denotes a sealing material made of an elastic material such as soft vinyl which is continuously disposed on the end portion 4b of the sealing rib 4. The outer peripheral surface 5a of the door back 5 and the end portion 4b of the sealing rib 4 are the sealing material 10 Connect through. It should be noted that the contact surface of the sealing material 10 is covered with the lip 1 in order to cover the variation in the positional relationship between the door back 5 and the sealing rib 4 in the contact direction.
0a is provided. The end portion 4 of the sealing rib 4
The outer peripheral surface 5a of the door back 5 is placed on b and filled with a foamed heat insulating material to be integrated.

[0019]

Since the air conditioner of the present invention has the above-mentioned structure, the invention according to claim 1 is a door body formed by integrally molding a front plate and a frame body, and a door covering the back surface of the door body. In a door of a refrigerator comprising a bag and a foam heat insulating material filled in a box body formed of the door body and the door bag, the door body is integrally formed with the door body, and a gap difference is formed at an edge portion of the door bag. Since it is provided with a sealing rib that continuously abuts with each other, the number of parts, the number of assembly steps, and the number of seals are reduced, and the manufacturing cost can be reduced. In addition, since there is no joint between the front plate of the door body and the frame, a high-quality refrigerator door can be obtained. The number of parts and the number of assembling steps can be reduced, the dimension can be stabilized by eliminating the assembly variation, and the completeness can be improved by having a natural curved surface with no sense of unity in design.

Further, according to the present invention, a supporting rib that abuts against the door back and supports the door back is intermittently provided in the vicinity of the sealing rib, thereby foaming the heat insulating material. Since the bending of the back is prevented and the door back is supported more stably, it is possible to prevent the sealing failure between the door body and the door back due to the displacement, the bending and the like.

Further, according to the third aspect of the present invention, by forming the door body near the joint between the door body and the sealing rib to be shallow, the moldability of the door body can be improved and the sealing rib Strength can be increased.

According to the fourth aspect of the present invention, the seal material is provided between the sealing rib and the door back, so that the contact state between the door body and the door back can be prevented from varying. Since it can be covered with, the sealing performance is improved, and the foamed heat insulating material does not leak from between the door body and the door back.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a refrigerator door of the present invention.

FIG. 2 is a cross-sectional view of a main part of the side surface of FIG.

FIG. 3 is a cross-sectional view of an essential part of the lower surface of FIG.

FIG. 4 is a cross-sectional view of a main part of a side surface of a second embodiment of the refrigerator door of the present invention.

FIG. 5 is a sectional view of an essential part of a side surface of a third embodiment of the refrigerator door of the present invention.

FIG. 6 is an exploded perspective view showing a conventional refrigerator.

[Explanation of symbols]

 1 Door Main Body 2 Front Plate 3a Horizontal Frame 3b Vertical Frame 4 Sealing Rib 5 Door Back 6 Packing Insertion Groove 7 Packing 8 Door Back Support Rib 9 Frame 10 Sealing Material

Claims (4)

[Claims] 1. A door body formed by integrally molding a rectangular front plate and a frame surrounding the outer periphery of the front plate, a door back covering the back surface of the door body, the door body and the door back. A door of a refrigerator comprising a foamed heat insulating material filled in a box body formed from: a sealing rib that is integrally formed with the door body and that continuously abuts the edge of the door back without a gap. Refrigerator door characterized by. 2. The door of the refrigerator according to claim 1, wherein a supporting rib that abuts against the door back and supports the door back is intermittently provided near the sealing rib. 3. The door of the refrigerator according to claim 1, wherein the door body is formed to have a shallow depth in the vicinity of the joint between the door body and the sealing rib. 4. The door of the refrigerator according to claim 1, wherein a sealing material is provided between the sealing rib and the door back.