JPH02192578A - Door device for refrigerator - Google Patents

Abstract

PURPOSE:To improve the airtight property of a refrigerator by a method wherein a partitioning body is extended into the pivoting direction of a door and is provided with a length across the opening rim of a heat insulating box body while a semi-circular groove, positioned on the column of a guide unit, is formed at the end of the partitioning body and the gaskets of both doors at the non-pivoting sides thereof are contacted closely with the front surface of the partitioning body under this condition. CONSTITUTION:A semi-circular groove 17A, extended up-and-down with a length slightly shorter than the up-and-down size of an opening 5A and coinciding slidably with the column 16A of a guide unit 16, is provided at the upper and lower ends of a partitioning body 15. When a door 6A is closed gradually, the partitioning body 15 invades into the inside 13 of a refrigerator and the column 16A is abutted against the semi-circular groove 17A of the partitioning body 15. When the column 16A is abutted along the slidably coinciding semi-circular groove 17A further, a seal member 18 is lifted in conjunction with the operation of the column 16A against the elastic force of a spring 19 and the partitioning body 15 is pivoted counterclockwise. Under a condition that a door 6A is closed, the gaskets 12 of the non- pivoting side of the doors 6A, 6B are contacted closely with the front surface of the partitioning body 15 while the seal member 18 is contacted closely with the upper and lower ends of the partitioning body 15, whereby the inside 13 of the refrigerator may be sealed in an airtight condition.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a door device for a refrigerator in which the opening of a heat insulating box is opened and closed by double doors, and each door is provided with a gasket for sealing on the back side of the door. .

2. Description of the Related Art Conventionally, this type of door device has been constructed as shown in FIGS. 9 to 11, for example, as shown in Japanese Patent Publication No. 63-10457.

1 is the refrigerator body, 2 is an outer box made of iron plate, 3 is an inner box made of synthetic resin, 4 is a foam insulation material filled between the outer box 2 and the inner box 3, and 6 is an opening in the front. 6A is the opening of the insulation box 5, and eA and 6B are two Kannons that are rotatably supported by upper and lower hinges 7A and 7B provided at the top and bottom of the edge of the insulation box 6. An opening field, 8 is a plurality of net shelf rails that are integrally formed in both side walls of the inner box 3 and extend back and forth at approximately the same horizontal position, 9 is a portion located on the non-pivot side of each of the doors eA and eB. A first guide portion is formed so as to protrude from above and below the edge of the opening 6A of the heat insulating box 6, and the first guide portion 9 has a flat front surface that is connected to the opening 5A and the road surface. 9A is a semicircular curved surface, and 10 is the first part of the upper and lower walls of the inner box 3.
A stepped portion recessed in four directions of the foam insulation material around the guide portion 9, 1
Reference numeral 1 denotes a second substantially triangular shaped second guide part 9 which is formed at a corner of the step part 1° and protrudes vertically opposite to the first guide part 9 at a distance from the first guide part 9 on the door eA side. Guide part, 11A
12 is the guide surface facing the curved surface 9A of the first guide part 9; 12 is the door eA; a gasket as a sealing member with a magnet inserted into the back surface periphery of eB; 13 is the inside of the refrigerator; 14 is the door 6
A support arm 15 that protrudes in the direction of the interior 13 of the warehouse at two upper and lower locations on the inside of the gasket 12 located on the non-pivot side of the back surface of A is a partition.

The operation of the refrigerator configured as above will be explained below.

When closing the two double doors eA and eB, the partition 16
It is rotatably supported on the back surface of the non-pivot side of the first door 6A with a length spanning the opening edge in the direction of the rotation axis of the door, and enters the refrigerator interior 13 when closing the first door 6A. The second guide portion 11 is rotated in contact with the guide surface 11A of the second guide portion 11, and is slidably matched with the curved surface 9A of the first guide portion 9. When the partition 15 is aligned with the first guide part 9, the partition 15 is connected to the opening 5A of the heat insulating box 6 and the road surface, and the gasket 12 on the non-pivot side of both doors is connected to the partition 1.
5 can keep the interior 13 airtight by coming into contact with the front surface.

Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, since the second guide part is made of plastic, the gasket does not come into close contact with it, and since the partition body and the second guide part rotate, the gasket is formed at the top and bottom of the partition body. This had the disadvantage that the guide part and the opening of the heat insulating box could not be brought into close contact with each other.

The present invention is intended to solve the above-mentioned conventional problems, and is to provide a door device for a refrigerator that improves the airtightness of the inside of the refrigerator.

Means for Solving the Problems In order to solve the above problems, the refrigerator door device of the present invention has the following features:
A pair of guide parts protruding as cylinders at the opening edges located on the non-pivot sides of both doors, a sealing material that abuts the upper and lower ends of the partition on the front surface of the guide parts, and A semicircular groove is supported on the back surface of the pivot side portion so that the door can be rotated with a length spanning the opening edge, and enters into the refrigerator with the closing operation of the first door and is located on the cylinder of the guide portion. This is a configuration in which a partition body having an oblique groove is provided.

Function: With the above-described configuration, the partition body rotatably supported on the back surface of the non-pivotal side portion of the first door enters the refrigerator with the closing operation of the first door, and forms a semicircular shape. The front surface of the partition is substantially flush with the opening with the terminal end of the groove located on the cylindrical guide provided at the opening edge on the non-pivot side of both doors, and the guide interlocks with the closing operation of the first door. Since the sealing material attached to the protrusion comes into contact with the center of the opening, the airtightness inside the refrigerator is improved.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. It should be noted that the same parts as those in the prior art are designated by the same reference numerals and the description thereof will be omitted.

Fig. 1 is a sectional view showing the door open state of a refrigerator door device showing one embodiment of the present invention, Fig. 2 is a sectional view showing the door open state corresponding to Fig. 4 is a sectional view taken from the direction B-B of FIG. 3, and FIG. 5 is a sectional view taken from the direction C-C of FIG. 2. , FIG. 6 is a perspective view of the refrigerator in this embodiment, FIG. 7 is a front view of the heat-insulating box, and FIG. 8 is taken along the line D-D in FIG.
It shows a cross-sectional view from the direction.

Reference numerals 16 and 16 refer to guide portions formed oppositely to each other at the upper and lower edges of the opening 5A of the heat insulating box body 5 in the portions located on the non-pivot sides of the doors eA and eB, respectively; It is a cylindrical column that protrudes from the guide portion 1e.

Here, the guide portion 1e may be integrally molded with the inner box 3, or may be attached as a separate member.

Guide portions 16 are provided at the upper and lower ends of the partition 16, which extends vertically with a length slightly smaller than the vertical dimensions of the opening 6A, and has a flat front surface and a curved corner portion at the rear.
a semicircular groove that slidably fits into the cylinder 1eA, 17;
B is the terminal end of the semicircular groove 17A, 18 is the guide portion 16
A sealing material is formed opposite to each other in the front part and comes into close contact with the partition 15 in conjunction with the sliding of the cylinder 1eA, 19 is a spring for expanding and contracting the cylinder 16A, and 2o is a central axis supporting the cylinder 16.

The operation of the refrigerator configured as above will be explained below.

When the door 6A is closed, the partition body 16 enters the inside 13 of the refrigerator, and the column 1eA comes into contact with the semicircular groove 17A of the partition body 15, and furthermore, the semicircular groove that fits freely in the partition body 15 comes into contact with the semicircular groove 17A of the partition body 15. When the cylinder 1eA comes into contact with the cylinder 1eA along the line 17A, the sealing material 18 is lifted up against the elastic force of the spring 19, and the partition 16 is rotated counterclockwise. When 6A is closed, the gaskets 12 on the non-pivot sides of the doors eA and 6B are in close contact with the front surface of the partition 16, and the sealing material 18 is in close contact with the front surface of the partition 16.
5 to tightly seal the inside 13 of the refrigerator by closely contacting the upper and lower ends.

Here, the partition body 15 may be made of synthetic resin or the like, but if only the front side is made of a magnetic material, the gasket 15 on the non-pivotal side
The adhesion of No. 2 is even better. Further, the width of the partition body 16 is set so that the distance between the gaskets 12 on the non-pivot side is sufficiently large.

Next, when opening the door 6A, by arching the door 6A toward you, the cylinder 1aA is slidably fitted into the semicircular groove 17.
When the partition body 16 having A is activated, the sealing material 18 is lowered by the elastic force of the spring 19, and the partition body 1
5 is rotated clockwise, whereby the gasket 12
is separated from the front of the partition 15, and then the door 6A is easily rotated and opened.

As described above, according to this embodiment, since the sealing material is also attached to the upper and lower ends of the guide part, airtightness could not be maintained only with the gasket on the non-pivot side of both doors, which was conventionally possible. The interior of the refrigerator can be kept much more airtight than before.

Effects of the Invention As described above, the present invention provides the first stage of the Kannon opening ceremony. A pair of guide parts protrudingly formed as a column on the part of the opening of a heat-insulating box such as a refrigerator with a second door located on the non-pivot side of the door, and a partition body interlocking with the column on the front part of the guide part. A sealing material is provided in contact with each other, and both doors have gaskets around the back surface that contact with the opening edges of the insulation box, and a partition is rotatably provided on the back surface of the non-pivotal side of the first door. The body extends in the direction of the rotation axis of the door and has a length that spans the opening edge of the insulating box body, and a semicircular groove located in the cylinder of the guide part is formed at the end of the partition body. The gaskets on the non-pivot sides of both doors are in close contact with the front of the partition, and when the first door is closed, the partition comes into contact with the cylinder of the guide part and is located at the end of the semicircular groove. At this time, the gaskets on both doors come into close contact with the front of the partition, and the sealing material also comes into close contact with the top and bottom ends of the partition, sealing the inside of the refrigerator, improving the airtightness of the inside of the refrigerator, and preventing problems such as poor insulation. This makes it possible to realize an excellent refrigerator that can prevent such problems.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the door device of a refrigerator or the like according to an embodiment of the present invention in the door open state, FIG. 2 is a cross-sectional view of the same FIG. 1 in the door open state, and FIG. 3 is a perspective view of the guide part. Figure 4 is B of Figure 3.
6 is a sectional view taken from the direction CC in FIG. 2, FIG. 6 is a perspective view of the refrigerator in this embodiment, and FIG. 7 is a front view of the heat insulating box Figure 8 is D of Figure 6.
9 is a perspective view of a conventional refrigerator, FIG. 10 is a front view of the heat insulating box, and FIG. 11 is a sectional view taken from the direction A-A in FIG. 9. . 6...Insulated box body, 5A...Opening, eA
, eB... First and second doors of Kannon opening ceremony, 12.
...gasket, 13...interior, 16.
...Partition body, 16...Guide part, 16A
...Cylinder, 17A...Semicircular groove,
17B...Terminal part, 18...Sealing material. Name of agent: Patent attorney Shigetaka Awano and 1 other person5-
dfr Moku 11 body figure, 5-#I A book figure figure figure 1 figure 11

Claims (1)

[Claims] first and second double-opening doors rotatably pivoted on both sides of the opening to close the opening of a heat insulating box body having an opening; and a first and second door of a double-opening type provided on the periphery of the back surface of both doors and the periphery of the opening. a pair of guide parts protruding into the opening edges located on the non-pivot sides of both doors as cylinders; and a sealing material on the front surface of the guide parts that abuts the upper and lower ends of the partition. and a length extending across the opening edge of the back surface of the non-pivot side portion of the first door in the direction of the rotation axis of the door and rotatably supported, as the first door closes. a partition body having a groove that enters into the refrigerator and rotates in contact with the cylinder of the guide part, and slidably matches the cylinder of the guide part, and the terminal end of the semicircular groove of the partition body In the refrigerator door device, the front surface of the partition is substantially flush with the opening in a state where the cylinder of the guide part is positioned up to the opening, and the gasket on the non-pivot side of both doors is in contact with the front surface of the partition.