JPH05280856A - Door device of refrigerator, or the like - Google Patents

Abstract

PURPOSE:To provide a door device of a refrigerator, etc., in which when a protrusion part enters a groove part the direction of a partition is changed as the protrusion part withdraws from the groove part, by rotatably supporting the partition, which forms an abutment surface between sealing members of both doors, on the back surface of one door of double doors opening on hinges on the side of a non-supported side, and further providing the protrusion part on any of upper and lower portions of an opening peripheral part and the groove part including an inlet through which the protrusion enters in the lower or upper end part of the partition. CONSTITUTION:Double doors 7A, 7B opening on hinges, a sealing member 12A abutting an opening edge of a back peripheral edge of each door, and a partition 17 rotatably supported on the back surface of a non-supported side part of the door 7A, are provided. A protrusion part 9 on any of upper and lower portions of the opening edge part, and a groove part 17A including an inlet through which the protrusion enters located in the lower end or the upper end of the partition are further provided. The direction of the partition is switched when the protrusion enters the groove part or when the same withdraws from the groove part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device such as a refrigerator in which an opening of a heat insulating box is opened / closed by a double-door type door and a gasket as a sealing member is provided on the back surface of each door.

[0002]

2. Description of the Related Art Conventionally, a refrigerator having a double door of this type has a gasket provided on the non-pivotal side of the door in order to keep the inside of the refrigerator airtight by a gasket provided on the back of the double door. There has been one in which a partition member for partitioning the opening of the heat insulating box into left and right is attached as a closing member for forming the contact surface. However, the presence of this partition member reduces the internal volume of the refrigerator, and when one door is open, food cannot be taken in or out of the refrigerating room closed by the other door, or it interferes with the operation of taking in and out. There was a problem.

In order to eliminate this problem, conventionally, a single-layer or multi-layer tongue protruding outward is formed on a gasket located on the non-pivotal side of a double door, and both tongues contact each other. There was at least one that provided a seal between both doors.

In addition, for example, (i) Actual exploitation 57-15678
As shown in Japanese Patent Publication No. 6, a front opening of a refrigerating chamber is closed by two doors, and a center pillar that forms a sealing surface of the other door is installed on a door inner plate portion of one door, and the center pillar A refrigerator having a substantially semi-cylindrical seal member at the upper and lower edges thereof has a semi-cylindrical receiving portion that fits into the semi-cylindrical fin portion of the sealing member, and a flat receiving portion that is in close contact with the flat fin portion of the sealing member. There is a receiver provided on the inner wall of the main body.

Further, (ii) as shown in Japanese Utility Model Application Laid-Open No. 57-156790, the refrigerator compartment door for closing the front opening of the refrigerator is divided into a first door and a second door into two parts, left and right, and
On one door, and on the joint side of the left and right doors, attach a middle pillar that is the packing receiving surface of the other door, and provide a dew receiving guide groove in the longitudinal direction on the inside surface of this middle pillar. There is a double door for a refrigerator that is located above the dew receiving recess of the refrigerator box.

[0006]

In the case where the two tongues are brought into contact with each other to seal the two doors, the tongues are worn by the friction between the tongues accompanying the opening / closing operation of the double door. If the tongue pieces are damaged or damaged, the adhesion between the tongue pieces becomes insufficient and the airtightness of the tongue pieces is impaired.

The central pillar of the refrigerator described in (i) and the central pillar of the double door for a refrigerator described in (ii) above are not provided so as to be rotatable with respect to the door. Since the sealing surface is always fixed in a state that it faces a certain direction, there is a restriction on the opening and closing order of the left and right doors (that is, one of the doors with the center pillar is closed first, and then the other is closed). There is a restriction that you have to open the other door first, and then open the other door first, and then open the other door with the center pillar.) In this case, the center pillar hits the other door, causing damage to the other door. In addition, due to the above-mentioned restrictions, opening and closing doors is unnecessarily performed when the food is taken in and out, the amount of outside air flowing into the storage chamber increases, and the temperature inside the storage chamber unnecessarily rises to the desired temperature inside the storage chamber. There is a risk that the food quality may not be maintained due to the failure to maintain the temperature of the food.

Therefore, according to the present invention, the partition body, which is the contact surface of the seal members of both doors, is rotatably supported on the back surface of the non-pivot side of one of the double doors, and the opening edge is also provided. The upper and lower ends of the partition body are each provided with a protrusion, and a groove portion having an entrance into which the protrusion enters is provided at the upper end or the lower end of the partition body, respectively. It is an object of the present invention to provide a door device for a refrigerator or the like, in which the direction of the partition body is changed when the protruding portion starts to move out of the groove portion.

[0009]

DISCLOSURE OF THE INVENTION The present invention is a double-door type door that is rotatably supported on both sides of an opening of an insulating box having an opening so as to close the opening, and a door of each door. A seal member provided on the peripheral edge of the back surface and in contact with the opening edge, and rotatably supported on the back surface of the non-pivot side portion of one of the doors so as to extend in the rotation axis direction of the door. With a partition body,
When a protrusion is provided above or below the opening edge, and a groove having an entrance into which the protrusion enters is provided at the upper end or the lower end of the partition body, respectively, when the protrusion enters the groove And a door device for a refrigerator or the like, in which the direction of the partition body is changed when the protrusion starts to retreat from the groove.

[0010]

With the projection and the groove, the direction of the partition body is changed when the projection enters the groove and when the projection begins to move out of the groove. When one of the provided doors is opened, when the partition body moves to a position inside the seal member to stand upright with respect to this door, and when this door is closed, part of the partition body is partially It acts as a direction changing part that easily changes the direction of the partition when it moves to the side projecting position, which facilitates the opening and closing operation of the door and also moves the partition to the standing position or the projecting position. It can be easily turned toward.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings of FIGS. 1 is a refrigerator, and an outer box 2 made of steel plate
And an inner box 3 formed by molding a synthetic resin, and a foamed heat insulating material 4 filled between the two boxes 2 and 3 to form a heat insulating box 5 having an opening 5A on the front surface. The two hinged doors 7A and 7A with upper and lower hinges 6A and 6B on the left and right edges of the opening 5A of
7B rotatably pivots and these two double doors 7
The opening 5A is openably and closably closed by A and 7B.
FIG. 2 shows a front view of the heat insulation box 5. A plurality of shelf rails 8 extending in the front-rear direction are integrally formed on the inner surfaces of both side walls of the inner box 3 at substantially the same horizontal position.

First guide portions 9 are formed so as to face each other above and below the edge of the opening 5A of the heat insulating box 5 corresponding to the portions of the doors 7A and 7B located on the non-pivotal side. There is. The first guide portion 9 has a front surface that is substantially planar and is substantially flush with the edge of the opening 5A of the heat insulating box body 5, and the rear portion thereof has, for example, a semicircular curved surface 9A. Around the first guide portion 9 on the upper and lower walls of the inner box 3, a step portion 10 slightly recessed in the direction of the heat insulating material 4 is formed, and at the corner of the step portion 10 and more than the first guide portion 9. The first guide portion 9 is provided on the door 7A side.
A substantially triangular second guide portion 11 is formed so as to vertically project and face each other at a distance. The second guide portion 11 faces the curved surface 9 </ b> A of the first guide portion 9 and faces the guide surface 1.
Have 1A.

Here, the first guide portion 9 and the second guide portion 1
1 may be formed integrally with the inner box 3 or may be attached as a separate body.

A gasket 12 as a seal member having a magnet inserted therein is attached to the peripheral portions of the back surfaces of the doors 7A and 7B. When the doors 7A and 7B are closed, the gasket 12 magnetizes the front edge of the outer box 2 of the opening 5A of the heat insulating box 5 to seal the inside 13 of the chamber. First support arms 14 projecting from the door 7A toward the inside of the refrigerator 13 are attached to upper and lower portions of a portion located inside the gasket 12A located on the non-pivotal side of the back surface of the door 7A. FIG. 4 shows an enlarged view of the peripheral portion of the first support arm 14. First
A second support arm 15 is attached to the tip end side of the support arm 14 so as to be rotatable in the horizontal direction with respect to the support shaft 16, and a partition body 17 described later is attached to the tip end of the second support arm 15. Has been. In addition, the first support arm 14
A coil spring 19 as an elastic pressing member is attached to the support shaft 18 of the above, one end of the coil spring 19 abuts on a support shaft 20 provided on the first support arm 14, and the other end 19A slides on the second support arm 15. It is press-fitted freely.

On the other hand, on the one surface of the second support arm 15 (the upper surface of the second support arm 15 shown in FIG. 4) with which the other end 19A of the coil spring 19 comes into contact, a recess 21 for dropping the other end 19A is formed. And a position adjacent to the recess 21 (the recess 2 is formed on the upper surface of the second support arm 15 shown in FIG. 4).
On the right side of 1), a protrusion 22 is formed to give the other end 19A of the coil spring 19 a repulsive force. In particular,
The projection 22 is formed with two corners P1 and P2, and a line connecting the corner P1 and the support shaft 16 and a corner P2.
The angle formed by the line connecting the support shaft 16 and the extension line extending from the support shaft 16 to the right side of the support shaft 16 is about 45 ° and 75 °, respectively. ing. Further, these corners P1 and P2 are the second support arm 1
The other end 19 of the coil spring 19 is rotated by rotating 5
This is for determining the starting point when the counterclockwise repulsive force given to A in FIG. 4 is converted into the rotational moment of the second support arm 15. The coil spring 19, the recess 21, and the protrusion 22 constitute a rotation assisting device for assisting the rotation of the partition body 17 described later.

Here, the coil spring 19 is the first support arm 1
It does not matter even if it is provided on the second support arm 15 or not provided on the fourth support arm 15. In that case, the recess and the projection may be formed on the first support arm 14 according to the same principle.

The partition body 17 partitions the opening 5A of the heat insulating box body 5 into right and left, and both doors 7 when the doors 7A and 7B are closed.
It serves as an abutting surface of the gasket 12A located on the non-pivotal side of A and 7B, and in this embodiment, the first support arm 1
4 and a second support arm 15 pivotally support the door 7A. In particular, the partition 17 is the heat insulating box 5
Has a length slightly smaller than the vertical dimension of the opening 5A, extends in the vertical direction, the front surface has a flat shape, and the rear portion has curved corners. Curved portion 17 having a shape that slidably conforms to the curved surface 9A of
It is formed by recessing A.

Next, referring to FIGS. 5 and 6, the doors 7A, 7B
The operation of the partition body 17 will be described. First, since the opening / closing operation of the door 7B on the side where the partition body 17 is not provided is conventional, a description thereof will be omitted.

Next, in the state (not shown) in which the door 7A provided with the partition 17 is open, the coil spring 1
The other end 19A of 9 is engaged in the recess 21, and the partition body 17 is stopped at the position shown by the chain double-dashed line in FIG. 5 when viewed from the door 7A. When this door 7A is open, the heat insulating box 5
A member that divides the inside of the container into left and right (that is, the partition body 1 here)
Since 7) does not exist in the interior 13, it is possible to easily put the hands not only on the side where the door is open but also on the side where the door is closed, so that articles can be taken in and out easily. When the door 7A is closed while the door 7A is open, the partition 17
The rear corners of the curved portion 17A formed on the upper and lower ends contact the guide surface 11A of the second guide portion 11. When the door 7A is further closed, the curved portion 17A is guided by the guide surface 11A, so that the partition body 17 is guided by the guide surface 11 of the second guide portion 11.
It rotates counterclockwise along A, and further counterclockwise from the position shown in FIG. 6 against the repulsive force of the other end 19A of the coil spring 19. When the angle formed by the extension line of the first support arm 14 extending toward the inside of the refrigerator and the second support arm 15 reaches about 45 °, the other end 1 of the coil spring 19 is reached.
Since 9A is located at the corner portion P1, when the door 7A is further closed beyond this corner portion P1, it exceeds the portion which gives the repulsive force to the coil spring 19, so that the other end 19A of the coil spring 19 is provided. The partition body 17 is further rotated counterclockwise by the repulsive force.

Due to the repulsive force of the coil spring 19, the door 7A
In addition to easily closing, the curved portions 17A formed at the upper and lower ends of the partition body 17 match the curved surface 9A of the first guide portion 9, and the front surface of the partition body 17 has the opening 5A of the heat insulating box 5. It becomes almost flush with the edge and stops. This state is shown in FIG. At this time, a part (part on the left side in the figure) of the partition body 17 projects outward from the gasket 12A of the door 7A, and the front surface of the partition body 17 is substantially flush with the opening 5A. The gaskets 12A, 12A located on the non-pivotal side of the compartments 7, 7B are in close contact with the front surface of the partition body 17 and the front surface of the first guide portion 9 as shown in FIG.

Here, the partition body 17 is made of synthetic resin,
By forming only the front surface of the partition body with the magnetic material, the adhesion between the gaskets 12A and 12A can be further improved. In addition, the width of the front surface of the partition body 17 is the gasket 12A,
It may be set in advance so as to be sufficiently larger than the interval of 12A.

Next, when the door 7A is pulled forward when the door 7A is opened, the curved portions 17A formed at the upper and lower ends of the partition body 17 are drawn.
Moves clockwise while hitting the curved surface 9A of the first guide portion 9, so that the partition body 17 rotates clockwise to the position shown in FIG. 5 against the repulsive force of the other end 19A of the coil spring 19. The gasket 12A is separated from the contact surface (that is, the front surface) of the partition body 17. When the door 7A is further opened and the angle between the extension line of the first support arm 14 and the second support arm 15 reaches about 15 °, the other end 1 of the coil spring 19 is reached.
Since 9A is located at the corner P2, if the door 7A is further opened beyond the corner P2, the partition body 17 is rotated clockwise by the repulsive force applied to the other end 19A of the coil spring 19 and the door 7A is opened. 7A, stop at the position as shown by the chain double-dashed line in FIG. Therefore, when the door 7A is opened until the angle formed by the extension line of the first support arm 14 and the second support arm 15 becomes about 15 ° or less, the repulsive force of the coil spring 19 easily rotates the door 7A in the opening direction. Can move.

Here, the second guide portion 11 is provided on the upper and lower walls of the inner box 3, but either one may be used. The distance between the second guide portion 11 and the first guide portion 9 is set so that the upper and lower end portions of the partition body 17 can pass smoothly.

[0024]

According to the present invention, the protrusions provided at the upper and lower sides of the opening edge and the groove having the inlet into which the protrusion enters are provided at the upper end or the lower end of the partition body. When the door is operated to open one of the doors provided with the partition, the direction of the partition is changed when the part enters the groove and when the protrusion begins to move out of the groove. In the case where the partition body moves to a position inside the seal member to stand upright with respect to this door, and when the door is closed, a part of the partition body moves to a position protruding sideways of this one door. In this case, in addition to acting as a direction changing portion for easily changing the direction of the partition body, the opening / closing operation of the door is facilitated, and the partition body can be easily rotated toward the standing position or the protruding position. In particular, by closing this one door part of the partition body protrudes to the side of one door,
Since the front surface of the partition body is the contact surface of the seal member located on the non-pivotal side of the double door, the heat insulation of the partition member is made in advance in order to abut the seal member located on the non-pivotal side of these doors. There is no need to attach it to the box, the partition member does not narrow the storage space in the refrigerator, and the entire opening of the heat insulating box can be used as a food inlet and outlet, improving the usability of the refrigerator . Moreover, in addition to eliminating the problem that the contact state becomes insufficient or the airtightness is impaired due to friction between the seal members as in the conventional case, the partition body is provided irrespective of the opening / closing operation of the other door. It is possible to open and close the door.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a refrigerator of the present invention.

FIG. 2 is a front view of a heat insulating box.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged view of a peripheral portion of the first support arm.

FIG. 5 is a cross-sectional view for explaining the opening / closing operation of the first door.

FIG. 6 is a transverse cross-sectional view for explaining the opening / closing operation of the first door, similar to FIG.

[Explanation of symbols]

 1 Refrigerator 5 Heat insulation box 5A Open 7A One door (first door) 7B The other door (second door) 9 Projection (first guide) 12 Seal member (gasket) 17 Partition 17A Groove (curved)

Front page continuation (72) Inventor Hana Mure Toshiyuki 180 Sakata, Oizumi-cho, Gunma-gun Odazumi-cho, Tokyo Sanyo Electric Co., Ltd. Company (72) Inventor Yoshihiro Yamakawa 180 Sakata, Oizumi-cho, Oiraku-gun, Gunma Higashi Kyoyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A double-door type door that is pivotally supported on both sides of the opening so as to close the opening of the heat-insulating box body having the opening, and opening edges provided on the peripheral edges of the back surface of each door. An opening is provided with a sealing member that abuts, and a partition body that is rotatably pivotally supported on the back surface of the non-pivot side portion of one of the doors and extends in the pivot axis direction of the door. When a protrusion is provided on one of the upper and lower sides of the edge, and a groove having an entrance into which the protrusion enters is provided at the upper end or the lower end of the partition body, respectively, when the protrusion enters the groove, A door device for a refrigerator or the like, characterized in that the direction of the partition body is changed when the protrusion starts to retreat from the groove.