JP2777562B2 - Door devices such as refrigerators - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating box in which an opening of a heat-insulating box is opened and closed by a double-door, and a gasket as a seal member is provided on the back of each door. The present invention relates to a door device such as a refrigerator. 2. Description of the Related Art Conventionally, a refrigerator having a double-door type door is located on a non-pivot 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 door. In some cases, a partition member for partitioning an opening of a heat insulating box into right and left is attached as a closing material for forming a surface with which a gasket contacts. However, due to the presence of this partition member, the internal volume of the refrigerator is reduced, and when one door is opened, food cannot be taken in and out of the refrigerator compartment closed by the other door, or it interferes with the taking-out operation. Or there was a malfunction. Conventionally, in order to eliminate this problem, a single-layer or multiple-layer tongue protruding outward is formed on a gasket located on the non-pivot side of the double door, and the two tongues are brought into contact with each other. At least there was a seal between the doors. Further, for example, (i) Japanese Utility Model Laid-Open No. 57-15678
As shown in Japanese Patent Application Publication No. 6, the front opening of the refrigerator compartment is closed with two doors, and a middle pillar that forms the sealing surface of the other door is installed on the door inner plate of one door, and A refrigerator having a substantially semi-cylindrical seal member at the upper and lower edges of the seal member, having a semi-cylindrical receiving portion fitted to the semi-cylindrical fin portion of the sealing member, and having a flat receiving portion in close contact with the flat fin portion of the sealing member. In some cases, a receiving member is provided on the inner wall of the main body. Further, (ii) as shown in Japanese Utility Model Laid-Open Publication No. 57-156790, a refrigerator compartment door for closing a front opening of a refrigerator is divided into a first door and a second door into two right and left parts.
At one of the doors, a center pillar serving as a packing receiving surface of the other door is attached to the joint side of the left and right doors, and a dew receiving guide groove is vertically provided on the inner side surface of the middle pillar, and a lower end of the groove is provided. There is a double door for refrigerator which is located above the dew receiving recess of the refrigerator inner box. [0006] In the apparatus in which the two tongue pieces are brought into contact with each other to seal the two doors, the tongue pieces are caused by friction between the tongue pieces accompanying the opening and closing operation of the double door. The pieces are worn or broken, resulting in an inadequate state of mutual contact between the tongue pieces, resulting in inconvenience that the airtightness between the tongue pieces is impaired. The center pillar of the refrigerator described in the above publication (i) and the middle pillar of the double door of the refrigerator described in the above publication (ii) are provided rotatably with respect to the door. However, since the sealing surface is always fixed in a fixed direction, the opening and closing order of the left and right doors is restricted (that is, one door provided with the center pillar is closed first, and then the other door is closed). There is a restriction that the door must be closed, or the other door must be opened first, and then one of the doors provided with the center pillar must be opened). When it was performed, there was a problem that the center pillar hit the other door and damaged the other door. In addition, since the opening / closing operation of the door that does not need to be opened for taking in / out the food is performed due to the above-described restriction, the amount of outside air flowing into the storage room increases, and the temperature of the storage room rises unnecessarily and the storage room Could not be maintained at a desired temperature or the quality of food might be impaired due to an increase in temperature. Therefore, in the present invention, a partition member, which is a contact surface of a seal member of both doors, is pivotably supported on the back surface of one of the double doors on the non-pivot side, and this partition is provided. A projection is provided at the upper end or the lower end of the body, and a direction conversion unit for changing the direction of the partition body by hitting this projection on either the upper or lower side of the opening edge is provided to eliminate the above-described restriction and It is an object of the present invention to provide a door device for a refrigerator or the like that can easily change the direction of a partition. According to the present invention, there is provided an insulated box having an opening, which is rotatably supported on both sides of the opening so as to close the opening of the heat insulating box having the opening. A sealing member provided on the periphery of the rear surface of the door and abutting against the opening edge; and a rear surface of the non-pivot side portion of one of the doors, which extends in the direction of the pivot axis of the door and is rotatable. With a pivoted partition,
A curved portion is provided at an upper end or a lower end of the partition body, and a guide portion which forms a direction changing portion which hits the curved portion and changes the direction of the partition body at one of upper and lower sides of the opening edge is projected.
An object of the present invention is to provide a door device such as a refrigerator provided so as to be put out . The direction changing portion provided above or below the opening edge is shaped.
The guide part to be formed shifts the partition body to a position upright with respect to the one door by the curved part hitting the guide part for direction change during the opening operation of one door provided with the partition body, and this door During the closing operation of the door, two operations of shifting a part of the partition body to a position protruding to the side of the one door are performed, and the partition body and the other door obstruct the opening and closing operation of one door. Will not be. Also with the curved part
With the guide portion , the turning operation of the partition member is made smooth, and the turning operation of the partition member toward the upright position or the protruding position is ensured. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 is a refrigerator, a steel plate outer box 2
And an inner box 3 formed by molding a synthetic resin, and a foam insulating material 4 filled between the two boxes 2 and 3 to form an insulating box 5 having an opening 5A on the front surface. Two open doors 7A with upper and lower hinges 6A and 6B at the left and right edges of the opening 5A.
7B so as to be rotatable, and these two double doors 7
The opening 5A is closed openably by A and 7B.
FIG. 2 shows a front view of the heat insulating box 5. A plurality of shelf rails 8 are integrally formed on the inner surfaces of both side walls of the inner box 3 so as to extend forward and backward at substantially the same horizontal position. First guide portions 9 are formed at upper and lower sides of an edge of the opening 5A of the heat insulating box 5 corresponding to portions of the doors 7A and 7B located on the non-pivot side, respectively, so as to protrude opposite to each other. I have. The first guide portion 9 has a flat front surface, which is substantially flush with the edge of the opening 5A of the heat insulating box 5, and a rear surface having, 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 protruding oppositely from above and below is formed at an interval. The second guide portion 11 faces the curved surface 9 </ b> A of the first guide portion 9 and faces the guide surface 1.
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 into which a magnet is inserted is attached to the peripheral edge of the back surface of each 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 at the opening 5A of the heat insulating box 5 to seal the inside 13 of the refrigerator. 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-pivot side of the back surface of the door 7A. FIG. 4 is an enlarged view of a portion around the first support arm 14. First
A second support arm 15 is attached to a tip end of the support arm 14 so as to be rotatable in a horizontal direction with respect to a support shaft 16, and a partition member 17 described later is attached to a tip end of the second support arm 15. Have been. Also, the first support arm 14
A coil spring 19 as an elastic pressing member is attached to the support shaft 18 of the first embodiment. 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 movably pressed. On the other hand, on one surface (the upper surface of the second support arm 15 shown in FIG. 4) of the second support arm 15 to which the other end 19A of the coil spring 19 comes into contact, a concave portion 21 for dropping the other end 19A is formed. Formed at a position adjacent to the concave portion 21 (the concave portion 2 on the upper surface of the second support arm 15 shown in FIG. 4).
On the right side of FIG. 1), a projection 22 is formed to give the other end 19 </ b> A of the coil spring 19 a repulsive force. Especially,
The protrusion 22 has two corners P1 and P2, and a line connecting the corner P1 and the support shaft 16 and a corner P2.
The angles 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 and extending perpendicularly from the support shaft 16 to the side surface of the partition member 17 are approximately 45 ° and 75 °, respectively. ing. These corners P1 and P2 are connected to the second support arm 1
The other end 19 of the coil spring 19 is
This is for determining the starting point when the counterclockwise repulsion 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 that assists rotation of a partition member 17 described later. Here, the coil spring 19 is connected to the first support arm 1.
The second support arm 15 may be provided on the first support arm 14 with the same principle as that of the first support arm 14. The partition 17 separates the opening 5A of the heat insulating box 5 from side to side, and when the doors 7A and 7B are closed, both doors 7A and 7B are closed.
A, 7B is a contact surface of the gasket 12A located on the non-pivot side of the first support arm 1A.
4 and the second support arm 15 pivotably support the door 7A. In particular, the partition 17 is a heat insulating box 5
The opening 5A has a length slightly smaller than the vertical dimension of the opening 5A, and extends in the vertical direction. The front surface has a flat shape, the rear portion has a curved surface with corners, and the upper and lower ends have first guide portions 9 formed thereon. Curved portion 17 slidably conforming to curved surface 9A of
A is recessed and formed. Next, referring to FIGS. 5 and 6, doors 7A and 7B
The operation of the partition 17 will be described. First, since the opening / closing operation of the door 7B on which the partition 17 is not provided is generally conventional, the description is omitted. Next, when the door 7A on which the partition 17 is provided is open (not shown), the coil spring 1
The other end 19A of 9 is engaged in the concave portion 21, and the partition 17 is stopped at the position shown by the two-dot chain line in FIG. When the door 7A is open, the heat insulating box 5
(That is, in this case, the partition 1
Since item 7) does not exist in the compartment 13, it is possible to easily put a hand 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 easily taken in and out. When the door 7A is closed from the state where the door 7A is open, the partition 17
The rear corners of the curved portion 17A formed at the upper and lower ends of the second guide portion 11 abut on 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.
A turns counterclockwise along A, and further turns 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 between the extension line of the first support arm 14 extending inside the storage and the second support arm 15 reaches a position of about 45 °, the other end 1 of the coil spring 19
Since 9A is located at the corner P1, when the door 7A is further closed beyond the corner P1, the door 7A is over the portion that gives the coil spring 19 a repulsive force. The partitioning body 17 is further rotated counterclockwise by the repulsive force. Due to the repulsive force of the coil spring 19, the door 7A
Can be easily closed, and the curved portions 17A formed at the upper and lower end portions of the partition member 17 match the curved surfaces 9A of the first guide portion 9, and the front surface of the partition member 17 has the opening 5A of the heat insulating box body 5. Stops when it is almost flush with the edge. This state is shown in FIG. At this time, a part (part on the left side in the figure) of the partition 17 projects outward beyond the gasket 12A of the door 7A, and the front surface of the partition 17 is substantially flush with the opening 5A. The gaskets 12A, 12A located on the non-pivot side of the first and second guides 7 and 7B are tightly attached to the front surface of the partition member 17 and the front surface of the first guide portion 9 as shown in FIG. Here, the partition 17 is made of synthetic resin,
By forming only the front surface of the partition body with a magnetic material, the adhesion of the gaskets 12A, 12A can be further improved. The width of the front surface of the partition 17 is gasket 12A,
It is preferable that the distance is 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 17 are formed.
Moves clockwise while hitting the curved surface 9A of the first guide portion 9, so that the partition 17 rotates clockwise to a position as shown in FIG. 5 against the repulsive force of the other end 19A of the coil spring 19, The gasket 12A separates from the contact surface (that is, the front surface) of the partition 17. When the door 7A is further opened and the angle between the extension of the first support arm 14 and the second support arm 15 reaches a position of about 15 °, the other end 1 of the coil spring 19
Since 9A is located at the corner P2, if the door 7A is further opened beyond the corner P2, the partitioning body 17 is rotated clockwise by the repulsive force applied to the other end 19A of the coil spring 19, and the door 17A is rotated. 7A is stopped after reaching the position shown by the two-dot chain 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 door 7A is easily turned in the opening direction by the repulsive force of the coil spring 19. 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. Further, the interval between the second guide portion 11 and the first guide portion 9 is configured such that the upper and lower end portions of the partition member 17 can pass smoothly. According to the present invention, the guide portion forming the direction change portion provided above or below the opening edge is such that the curved portion is oriented in the direction of opening one of the doors provided with the partition. For conversion
The partition body is moved to a position where the partition body stands up with respect to one of the doors by hitting the guide portion, and a part of the partition body is moved to a position protruding to the side of the one door when the door is closed. To act to perform two actions,
The partition and the other door are not in the way when the one door is opened and closed, so that the turning operation of the partition is smooth, and the turning operation of the partition toward the upright position or the protruding position is ensured. In particular, by closing one door, a part of the partition body projects to the side of the one door, and the front surface of the partition body becomes a contact surface of the seal member located on the non-pivot side of the double-opening type. There is no need to attach a partition member to the heat-insulating box in advance to make the seal members located on the non-pivot side of these doors abut,
The storage space in the refrigerator is not narrowed by the partition member, the entire opening of the heat-insulating box can be used as a food outlet, and the usability of the refrigerator can be improved. Moreover, in addition to eliminating the problem that the sealing state becomes insufficient or the airtightness is impaired due to the friction between the seal members as in the related art, the partition member is provided independently of the opening and closing operation of the other door. Door can be opened and closed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view schematically showing a refrigerator of the present invention. FIG. 2 is a front view of the heat insulating box. FIG. 3 is a sectional view taken along line AA of FIG. 1; FIG. 4 is an enlarged view of a portion around a first support arm. FIG. 5 is a cross-sectional view for explaining an opening / closing operation of a first door. FIG. 6 is a cross-sectional view for explaining an opening / closing operation of a first door similarly to FIG. 5; [Description of Signs] 1 Refrigerator 5 Insulated box 5A Opening 7A One door (first door) 7B The other door (second door) 9 Direction conversion unit (first guide unit) 11 Direction conversion unit (second guide unit) 12) Seal member (gasket) 17 Partition body 17A Projection (curved part)

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Toshiyuki Hanamure               180 Sakata, Oizumi-cho, Gunma Prefecture               Tokyo Sanyo Electric Co., Ltd. (72) Inventor Kaoru Kanemori               180 Sakata, Oizumi-cho, Gunma Prefecture               Tokyo Sanyo Electric Co., Ltd. (72) Inventor Yoshihiro Yamakawa               180 Sakata, Oizumi-cho, Gunma Prefecture               Tokyo Sanyo Electric Co., Ltd.

Claims (1)

(57) [Claims] A double-ended door that is rotatably supported on both sides of the opening so as to close the opening of the heat-insulating box having the opening, and a seal member that is provided on the periphery of the back surface of each door and contacts the opening edge. A partition extending on the back surface of the non-pivot side of one of the doors and extending in the direction of the pivot axis of the door and pivotably supported, and an upper end of the partition. Or a bay at the bottom
The curved portion is provided, those in the bending portion up and down either of the opening edge portion
A direction changing portion is formed to change the direction of the partition.
A door device for a refrigerator or the like, characterized in that a guide portion that protrudes is provided.