KR100767864B1 - Door device and refrigerator - Google Patents

Abstract

Disclosed are a door device that improves food storage of a refrigerator, a door opening force is small, a door device that is easy to use, and a refrigerator that reduces power consumption by the door device. The left and right open doors 46 and 47 are provided in the opening of the storage compartment 44a above the heat insulation box 43. The movable gasket 73 is attached to the side of the non-supporting side of the doors 46 and 47 via the holding members 68 and 69. The guide portion 48 provided on the ceiling surface of the storage chamber 44a is joined to the latch portions 64 and 65 of the holding members 68 and 69 to operate the movable gasket 73. In this way, the door apparatus of the simple structure which can bring about close_contact | adherence and releasing of the movable gaskets 73 is realized.

Description

DOOR DEVICE AND REFRIGERATOR}             

The present invention relates to a door apparatus and a refrigerator provided with the door apparatus.

Background Art In recent years, refrigerators have been provided with a so-called left-right opening type door device that opens and closes an opening of a storage compartment by two doors along with an increase in size.

In the conventional refrigerator having a left and right type door, the inside of the refrigerator is kept airtight by a gasket provided on the rear surface of both doors. Therefore, the surface which the gasket located in the non-support side of a door joins must be provided. Therefore, the blocking material which partitions there was attached to the opening part of a heat insulation box body.

As a conventional door apparatus, for example, there is one disclosed in Japanese Patent Laid-Open No. 1989-208690.

Hereinafter, the conventional door apparatus will be described with reference to the drawings.

10 is a perspective view of a conventional refrigerator.

11 is a front view of a conventional refrigerator.

12 is a cross-sectional view of the opening of the conventional refrigerator.                 

13 is a perspective view of a door of a conventional refrigerator.

In the refrigerator 1 in FIGS. 10-13, it is shown between the outer box 2 made of steel plate, the inner box 3 formed by forming a synthetic resin, and the both boxes 2, 3. The foam heat insulating material which does not form the heat insulation box 4 opened to the front. The opening part 5 is comprised by the two left and right opening doors 7 and 8 supported so that the left and right edge part of the opening part 5 of this heat insulation box 4 can be rotated by the upper and lower hinge 6. .

Guide members 9 are provided to face each other above and below the edge portion of the opening 5 of the heat insulation box 4 of the portion located on the non-support side of each of the doors 7 and 8. Guide grooves 10 are formed in the guide member 9. The doors 7 and 8 are composed of the frame members 11 and 12, the outer frames 15 and 16, the door inner plates 21 and 22, and the heat insulating material 23. The outer frame 15, 16 is composed of frame members 11, 12 and door outer plates 13, 14 which are joined thereto. The door inner plates 21 and 22 are constructed by joining the inner flanges 17 and 18 of the frame members 11 and 12. The heat insulating material 23 is foam-filled between the outer frames 15 and 16 and the door inner plates 21 and 22, respectively.

A pair of left and right vertical walls 24 and 25 are formed on the door inner plates 21 and 22, respectively. In addition, the grooves 26 and 27 at the ends of the frame members 11 and 12 are mounted with a gasket 28 incorporating a magnet. The fillet 29 is in close contact with the unsupported side vertical walls 24 and 25, respectively. The gasket 28 is in close contact with the front edge of the outer box 2 of the opening 5 of the heat insulation box 4 at the closing of the doors 7, 8 to seal the refrigerator interior 30.

Moreover, the partition main body 31 which is substantially rectangular in cross section is attached to the outer side of the inner side vertical wall 24 rather than the gasket 28 located in the unsupported side of the back surface of the door 7. The hinge plate 32 is fixed to the reinforcement board 33 of the heat insulating material 23 side by the screw 34 in the upper and lower two places on the outer side surface of the vertical wall 24. As shown in FIG. The partition main body 31 is rotatably supported by the rotation shaft 35 of this hinge plate 32. The partition main body 31 has a dimension that spans the edge of the opening 5 up and down, and the upper and lower guide members 9, the guide grooves 10 of the guide member 9, and the top and bottom with a dimension shorter than the gap between the guide grooves 10. It is extended. As for the front surface, the steel plate 36 is mounted like FIG.

Moreover, the projection 37 is protruded in the up-down direction as the coupling part in the upper and lower ends, respectively. The hinge plate 32 is inserted into the partition main body 31 from the notch part 38 formed in two upper and lower positions on the rear edge part of the door 7 side of the partition main body 31, and the rotation shaft 35 is located there. . A spring member 39 made up of a coil spring is inserted through the rotation shaft 35, and a partition body having one end spaced between the hinge plate 32 and the other end spaced from the rotation shaft 35 ( 31 are respectively coupled to the hooks 400. In this way, the partition main body 31 is always rotated by the restoring force of a coil spring to clockwise rotation direction as arrow 410 of FIG.

The operation of the conventional door device configured as described above will be described below.

The partition body 31 is along the outer side surface of the vertical wall 24 of the door inner plate 21, as indicated by the broken line in FIG. 12, by the restoring force of the spring member 39 in the state where the door 7 is open. It is held in the state joined to the screw 34. In this initial state, even if the user's hand accidentally touches the partition main body 31 and rotates in the counterclockwise direction in FIG. 12, the spring member 39 can return to the initial state. This operation is performed irrespective of the rotation angle of the partition body 31. Therefore, the door 7 is sealed with the partition main body 31 rotated, and the protrusion 37 of the partition main body collides with the protrusion part of the guide member 9, and can be prevented from being damaged.

Next, when the door 7 is sealed, the projection 37 of the partition main body 31 enters into the guide groove 10 and slides along the curved surface in the guide groove 10. Along with this, the partition main body 31 rotates in the counterclockwise direction against the spring member 39 about the rotation shaft 35, and the projection 37 enters into the guide groove 10. . Conversely, when the door 7 is opened, the projection 37 slides along the curved surface in the guide groove 10. At that time, the partition main body 31 is rotated in the clockwise rotation direction by the restoring force of the spring member 39, and then returns to the initial state.

However, in the said conventional structure, the partition main body 31 is attached to the outer side of the vertical wall 24 of the door 7. As shown in FIG. Accordingly, the airtightness of the inside of the refrigerator 30 is sufficiently maintained by the gasket 29 when the doors of the both doors 7 and 8 are closed. At the time of door opening, the partition main body 31 rotates the outer side of the vertical wall 24. Therefore, the space for rotating the partition main body 31 must be provided in the doors 7, 8. That is, the vertical walls 24 and 25 must be moved to the supporting side of the door. For this reason, the food storage space in the doors 7 and 8 reduces, and it is difficult for a user to use for food storage.                 

In addition, at the time of opening and closing of the door 7, the partition body 31 slides with the protrusion 37 rotating 90 degrees along the guide groove 10 of the guide member 9. Therefore, the friction coefficient of the protrusion 37 and the guide groove 10 becomes large. Therefore, the door opening force of the door 7 becomes large, and it is difficult for a user to use when opening and closing a door.

In addition, even when the user thinks that the door is closed, when the incomplete sealing is caused by the frictional force and the repulsive force of the spring member 39, there is a possibility that the temperature in the refrigerator rises and the freshness of the food is lowered.

In addition, since the partition main body 31 is completely located inside the refrigerator 30, when the door is sealed, the partition main body 31 is filled with cold air in the refrigerator. For this reason, the steel plate 36 comprised in the partition main body 31 is also cooled. Since the steel plate 36 is in contact with the outside of the refrigerator, condensation does not occur. Therefore, as a countermeasure, a member (for example, a heater) which becomes a heat generating source must be adhesively arranged in a partition main body. Thus, the endothermic amount of the refrigerator increases, leading to an increase in the amount of power consumed.

Summary of the Invention

In view of the above problems, an object of the present invention is to provide a door device having a small door opening force and an easy-to-use door, which effectively secures a food storage space inside the door.

Moreover, another object of this invention is to provide the refrigerator which can reduce the power consumption amount by the door apparatus which suppressed the endothermic amount in a door sealing structure.

1 is an external appearance front view of a first embodiment of a refrigerator according to the present invention;

2 is a perspective view of the refrigerator of the first embodiment;

3 is a perspective view of the back of the door of Embodiment 1;

4 is a cross-sectional view of the door of the refrigerator of the first embodiment taken along line 4-4 of FIG.

5 is a cross-sectional view of the door of the refrigerator of the first embodiment taken along line 5-5 of FIG.

6 is an exterior front view of a second embodiment of a refrigerator according to the present invention;

7 is a perspective view of the refrigerator of the second embodiment;

8 is a perspective view of the back of the door of the second embodiment;

9 is a sectional view taken along line 9-9 of FIG. 6;

10 is a perspective view of a conventional refrigerator,

11 is a front view of a conventional refrigerator,

12 is a sectional view of an essential part of a conventional refrigerator;

It is a perspective view of the principal part of the conventional refrigerator.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of the door apparatus of the refrigerator by this invention is described, referring drawings.

(Example 1)

1 is an external front view of a refrigerator according to a first embodiment of the present invention. 2 is a perspective view of a refrigerator in Embodiment 1; 3 is a rear perspective view of the door apparatus of the first embodiment. 4 is a cross-sectional view of the door taken along line 4-4 of FIG. 5 is a cross-sectional view of the door taken along line 5-5 of FIG.

In the refrigerator main body 40 of FIGS. 1-5, the foam insulation which is not shown filled between the outer box 41 made of steel plate, the inner box 42 made of resin, and the both boxes 41 and 42 is shown. In addition, the heat insulation box body 43 opened forward is comprised. This heat insulation box 43 contains the some storage chamber 44a, 44b, 44c. The uppermost storage chamber 44a is configured to be opened and closed by two left and right open doors 46 and 47 supported by the upper and lower hinges 45 so as to be rotatable.

In the heat insulation box body 43, it is a part located in the non-support side of each of the doors 46 and 47, and the guide part 48 is provided in the upper part of the edge part of the opening part 44 of the heat insulation box body 43. .

The guide part 48 is provided with two protrusions 49 of the same shape, each of which has a circular shape with a distal end, aligned in the left and right direction of the opening 44.

The doors 46 and 47 include door outer plates 480 and 490, flanges 50, side plates 51 and 52, door inner plates 53 and 54, and foam insulation 55. .

Here, the flange 50 has a U shape on the outside of the refrigerator, and is attached to the side surfaces of the doors 46 and 47 on the unsupported side. The side plates 51 and 52 have recesses 51a and 52a. The door inner plates 53 and 54 are joined to the refrigerator inner peripheral flange of the side plates 51 and 52. The foam insulation 55 is foam-filled between the outer plates 480 and 490, and the side plates 51 and 52 and the inner plates 53 and 54, respectively.

Moreover, the door accommodating parts 53a and 54a are formed in the interior side of the back surface of the door 46 and 47 by the inner board 53 and 54. As shown in FIG.

In the main portions 51a and 52a of the door side plates 51 and 52, grooves 56 and 57, fillet portions 58 and 59, latch portions 64 and 65, and retaining members 68 and 69 are formed. It is installed. Here, the ends of the fillet portions 58, 59 are in contact with the recesses 51a, 52a.

The latch portions 64 and 65 have inclined surfaces 60 and 61 and inclined surfaces 62 and 63 and are positioned at the same height when the protrusion 49 of the guide portion 48 and the door are closed. The holding members 68 and 69 include the rotation shafts 66 and 67. As shown in FIG.

The holding members 68 and 69 extend in the dimension which spans the opening part 44 up and down. The holding members 68 and 69 are rotatably supported in the recesses 51a and 52a of the door side plates 51 and 52 with the rotation shafts 66 and 67 as the center. In addition, the holding members 68 and 69 are fixed to the separation preventing members 70 and 71 for preventing the separation from the door side plates 51 and 52 of the rotation shafts 66 and 67. The separation prevention members 70 and 71 serve as bearings of the rotation shafts 66 and 67.

In the grooves 56 and 57 of the holding members 68 and 69, a bag portion 72 is provided at the outer end of the refrigerator. In addition, the grooves 56 and 57 are provided with movable gaskets 73 incorporating magnets 73a magnetized by different poles, in the form of opposing shapes, with the holding members 68 and 69 in the same length dimension in the longitudinal direction. It is installed.

Moreover, the fixed gasket 73b is attached to the upper and lower sides of the rear surfaces of the doors 46 and 47 and the longitudinal side of the rear surface of the supporting side of the doors 46 and 47.

Spring members 74 and 75 made up of coil springs are inserted through the rotation shafts 66 and 67. The spring members 74 and 75 contact one end with the side plates 51 and 52 and the other end with the holding members 68 and 69, respectively. When the doors 46 and 47 are closed, the fillet portions 58 and 59 seal the refrigerator interior 76 by contacting the concave bottom surfaces of the door side plates 51 and 52. In addition, the bag portion 72 of the movable gasket 73 is joined to the flange 50 to seal the refrigerator interior 76.

The operation | movement is demonstrated below about the refrigerator provided with the door apparatus comprised as mentioned above.

When the left and right open doors 46 and 47 are both in the closed state, the surfaces of the movable gasket 73 are brought into close contact with each other by the restoring force of the spring members 74 and 75 to seal the refrigerator interior 76. In addition, at that time, the bag shape 72 of the movable gasket 73 is joined to the flange 50 of the door side plates 51 and 52, so that the cool air in the refrigerator 76 is maintained with the door side plates 51 and 52. The refrigerator interior 76 can be sealed also in the state which penetrated between the members 68 and 69. FIG.

In addition, the movable gaskets 73 are attracted to each other by joining the magnets 73a of different poles embedded in the movable gasket 73. Therefore, the certainty of the sealing of the refrigerator interior 76 can be improved. In addition, by the fillet portions 58 and 59 provided in the holding members 68 and 69, the cold air in the refrigerator 76 is invaded between the door side plates 51 and 52 and the holding members 68 and 69. Also in the refrigerator, the inside 76 of the refrigerator can be sealed.                 

Next, when the door 47 is opened, the retaining member 69 executes the operation along the protruding portion 49 of the guide portion 48 by the inclined surface 63 of the latch portion 65. Therefore, the holding member 69 rotates like the arrow 200 with the rotation shaft 67 as a point. As a result, the movable gaskets 73 are forcibly released from each other. Therefore, when the door is opened, the surfaces of the movable gaskets 73 do not rub against each other. In this way, the durability of the gasket is improved. In addition, the gasket surface is rubbed and static electricity is generated so that dirt does not adhere to the gasket surface. In addition, the occurrence of friction noise due to the grazing of the gasket also disappears. In addition, since the door opening force can be reduced, the user's usability is also improved. When the door 47 is further opened, the inclined surface 61 is operated along the protruding portion 49 of the guide portion 48 by the restoring force of the spring member 75. Therefore, the holding member 69 returns to the same state as the door closed state with the rotation shaft 67 as the point. As a result, foreign matter does not enter between the door side plate 52 and the holding member 69. This is the same also in a door block state.

Next, when the door 47 is sealed, the inclined surface 61 and the inclined surface 63 operate according to the protrusion 49 of the guide portion 48. Therefore, the same operation as in the state of opening the door can be executed to obtain the same effect.

In addition, the rotation shafts 66 and 67 are fixed by the separation prevention members 70 and 71 in the state in which the door is in the closed state and the open state. Thereby, by the restoring force of the spring members 74 and 75, stable and smooth rotation is obtained, without the holding members 68 and 69 detaching from the door side plates 51 and 52. As shown in FIG.                 

As mentioned above, the door apparatus of this invention is simple structure compared with the conventional sealing structure, and can implement a reliable close sealing structure. Therefore, this door apparatus is economical and can ensure the reliability and stability of operation | movement. In addition, since the door device does not use a partition body, a condensation preventing heating element is also unnecessary. In this way, in this door apparatus, the sealing effect cooperates with the reduction of the heat absorbing quantity in the storage chamber 44a, and reduces the power consumption of the refrigerator.

In addition, when the above structure is provided only in one door, the component parts necessary for the movable gasket 73 to rotate are reduced by half. Thus, the assemblability of the refrigerator is improved, and the material cost thereof is reduced.

By the above structure and operation | movement, the partition main body conventionally provided between doors can be abolished. Therefore, the food storage space in the storage compartment 44a, especially the storage space of the door storage parts 53a and 54a on the back surface of a door, increases, and a user's usability improves.

In addition, the guide part 48 with respect to the latch part 65 is provided in the upper surface in the storage chamber 44a. Accordingly, the guide portion 48 is not disturbed from entering or leaving the article into the storage compartment 44a, and does not affect the storage capacity of the storage compartment.

In addition, by installing the door device in the uppermost storage chamber 44a, the storage space of the storage chamber with a high frequency of use which the user faces in the distance can be improved, and the usability can be improved.

In the present embodiment, the movable gasket 73 is provided between the two left and right open doors 46 and 47.                 

In addition, the same effect can be obtained by providing between two pull-out doors. At that time, the partition main body between the extraction doors can be closed. Therefore, since the vertical dimension of the storage container which enters and exits integrally with the take-out door can be enlarged, the food storage space increases.

(Example 2)

6 is an external front view of the refrigerator according to the second embodiment of the present invention. 7 is a perspective view of the refrigerator of the second embodiment; 8 is a perspective view of the back side of the door of the refrigerator of the present embodiment. 9 is a cross-sectional view of the door taken along line 9-9 of FIG. 6.

6 to 9, the refrigerator main body 77 includes an outer box 78 made of steel, an inner box 79 made of resin, and an insulating box body 80 opened forward. The heat insulation box 80 contains the foam insulation which is not shown filled between the both boxes 78 and 79. As shown in FIG. The two left and right open doors 83 and 84 are rotatably supported by the upper and lower hinges 82 at the left and right frame portions of the upper end opening 81 of the heat insulation box body 80. The doors 83 and 84 open and close the opening 81.

The doors 83 and 84 are composed of door outer plates 85 and 86, concave door side plates 87 and 88, door inner plates 90 and 91, and foamed heat insulating material 91, respectively. Here, the door inner plates 90 and 91 are joined to the refrigerator inner peripheral flange of the side plates 87 and 88, respectively. The foam insulation 91 is foam-filled between the outer boards 85 and 86, the side plates 87 and 88, and the inner boards 89 and 90, respectively.

In the concave portions 87a and 88a of the door side plates 87 and 88, the grooves 92 and 93 and the fillet portions of which the front ends contact the concave portions 87a and 88a of the door side plates 87 and 88 ( 94 and 95, the handle parts 96 and 97 facing the outside of the refrigerator, and the handles 100 and 101 constituted by the rotating shafts 98 and 99 are mounted, respectively. The grooves 92 and 93 extend in a dimension that extends up and down the opening 81. The handles 100 and 101 are rotatably supported around the rotation shafts 98 and 99. The movable gaskets 103 are attached to the grooves 92 and 93 in the same length dimension as the grooves 92 and 93 toward each other. The movable gasket 103 incorporates a magnet 102 magnetized into a plurality of different poles. The magnet 102 is magnetized so that the N pole and the S pole face each other with the movable gasket 103 facing each other.

The fixed gasket 103a is attached to the upper and lower sides of the rear surfaces of the doors 83 and 84 and the longitudinal side of the rear surface of the supporting side of the doors 83 and 84.

Spring members 104 and 105 made up of coil springs are inserted through the rotating shafts 98 and 99 as repulsion members. One end of the spring members 104 and 105 is in contact with the side plates 87 and 88, and the other end is in contact with the handles 100 and 101, respectively. When the doors 83 and 84 are closed, the fillet portions 94 and 95 contact the bottom surfaces of the concave portions 87a and 88a of the door side plates 87 and 88. Therefore, the fillet parts 94 and 95 seal with the storage chamber 106.

The operation | movement is demonstrated below about the refrigerator comprised as mentioned above.

When both the left and right open doors 83 and 84 are in the closed state, the surfaces of the movable gasket 103 are brought into close contact with each other by the restoring force of the spring members 104 and 105 to seal the refrigerator interior 106. In addition, the movable gaskets 103 are brought into close contact with each other by bonding the magnets embedded in the movable gaskets 103. Thus, the movable gasket 103 seals the refrigerator interior 106. In addition, the fillet parts 94 and 95 provided in the handles 100 and 101 have a refrigerator even in a state where cold air in the refrigerator interior 106 intrudes between the door side plates 87 and 88 and the grooves 92 and 93. Seal the interior 106.

Next, when the door 84 is opened by touching the handle 101, the handle 101 rotates as shown by the arrow 220 with the pivot shaft 99 as the point. As a result, the movable gaskets 103 are forcibly released from each other. Therefore, at the time of door opening, the surfaces of the movable gasket 103 do not rub together, and the durability of the gasket is improved. In addition, the surface of the gasket is rubbed and no static electricity is generated so that dirt is not attached. In addition, there is no occurrence of friction noise due to grazing of the gasket surface. In addition, the door opening force can be reduced, and the user's usability is improved.

In addition, when the door 84 is opened and the hand is released from the handle 101, the handle 101 rotates the pivot shaft 99 to the point by the restoring force of the spring member 105, and the door closed state and Return to the same state. In this way, foreign matter does not enter between the door side plate 88 and the handle 101. This is also the same in the door closed state.

Next, when the door 84 is sealed, the magnets 102 in the movable gasket 103 face the same poles for the first time in most cases. Then, since the magnets 102 repel each other, the movable gasket 103 also repels each other. Thereby, the surfaces of the movable gasket 103 do not rub together, and the effect equivalent to when opening a door is acquired. In addition, when the door 84 is sealed, the magnets 102 in the movable gasket 103 start adsorption with each other because the other poles face each other. Finally, since the other poles adsorb | suck in close proximity, the movable gasket 103 ensures a close state.

By the above structure and operation, the doors 83 and 84 can be opened by releasing the close contact state of the movable gasket 103 only by operating the handle 101 with a small force. Therefore, the user's door operation becomes very easy.

In addition, as in the first embodiment described above, the partition main body, which is conventionally provided between the doors 83 and 84, can be removed. Therefore, the food storage space in the storage compartment 106 increases, and the user's usability can be improved. At the same time, since no condensation preventing heating element is required, power consumption can also be reduced.

The door apparatus of this invention can perform sealing between both doors by gaskets, without using a partition main body. Therefore, it is cost effective and can increase the food storage space inside the refrigerator. Moreover, since this door apparatus simplified the sealing structure, the area of the effective storage chamber in a refrigerator becomes large, and the economic efficiency improves.

Moreover, since the door apparatus of this invention has high adhesiveness between doors by the magnet inside the close_contact | adherence surface of a gasket, sealing in and outside a refrigerator can be ensured.

In addition, since the magnet which opposes mutually at the time of door sealing was made into another pole, a gasket does not rub with each other by repulsion of other poles. Therefore, it can seal tightly, maintaining the durability of a gasket.

In addition, this door device can open the door with a small force by the operation of the movable gasket.

In addition, the door apparatus can smoothly perform the operation of the gasket by the latch portion and the guide portion, the gaskets do not rub with each other, the durability of the gasket is improved, and the force due to the opening and closing of the door can be reduced.

Moreover, this door apparatus can reduce the force by opening / closing a door, maintaining the durability of a gasket by the guide part.

Moreover, this door apparatus can easily perform operation of a gasket with a small force by a handle, and can further reduce the force according to door opening and closing.

In addition, the door device can reliably return the holding member to the pre-operational state by the repulsion member to prepare for the next operation, thereby improving the reliability of the operation.

Moreover, since the separation prevention member provided in the door prevents separation of the rotational shaft, the operation reliability of the holding member can be improved.

Moreover, the holding member which used as the member of the rotating shaft bearing can improve the operation reliability and stability of a holding member.

In addition, the door opening force can be reduced to improve operability. In addition, power consumption can be reduced without using a condensation preventing heating element.

In addition, since the refrigerator of the present invention is provided with the latch portion on the upper portion of the holding member and the guide portion is installed on the upper surface of the storage chamber, the entry and exit of the article into the storage chamber is not impeded and the storage properties are not affected.

Moreover, the refrigerator of this invention is equipped with the door apparatus in the uppermost storage chamber of several storage chamber. Therefore, it can be used because the user can face to face and can increase the storage space of the storage chamber with a high frequency of use.

As described above, the present invention provides a door device and a refrigerator having many practical effects.

Claims (14)

Two doors which face one side of the outer circumference in the opening of the box body; A gasket provided on a rear surface of an outer circumference other than the one side of the two doors and in close contact with an opening front edge of the box when the door is closed; A pair of gaskets disposed on the one side of the two doors to be in close contact with each other when the door is closed; A rotating shaft disposed on the one side of the two doors, A holding member disposed on the two doors, the holding member holding the pair of gaskets and rotating about the rotation shaft; A latch portion mounted to the holding member; A guide part provided in the box body and joined to the latch part to operate the holding member; The pair of gaskets are movable gaskets which rotate about the pivot shaft, When the door is opened, the retaining member rotates about the pivot shaft so that the movable gasket is separated from the opposing side about the pivot shaft to release close contact between the pair of gaskets. Door device. Left and right open side doors rotatably supported on both sides of the opening of the box body; A gasket provided on the upper and lower sides of the rear surfaces of the both side doors and the rear side of the rear surface of the supporting side of the both side doors, and being in close contact with the opening front edge of the box when the door is closed; A pair of gaskets disposed on side surfaces of the non-supporting sides of the both side doors to be in close contact with each other during door closing; A rotating shaft disposed on side surfaces of the non-supporting sides of the both side doors, A holding member disposed on the two doors, the holding member holding the pair of gaskets and rotating about the rotation shaft; A latch portion mounted to the holding member; A guide part provided in the box body and joined to the latch part to operate the holding member; The pair of gaskets are movable gaskets which rotate about the pivot shaft, When the door is opened, the retaining member rotates about the pivot shaft so that the movable gasket is separated from the opposing side about the pivot shaft to release close contact between the pair of gaskets. Door device. The method according to claim 1 or 2, A magnet is provided inside the contact surface of the pair of gaskets. Door device. The method of claim 3, wherein The magnet is a plurality of numbers, The magnets face each other when the door is closed, and each magnetized to a different pole Door device. delete delete The method according to claim 1 or 2, The door is provided with a handle for operating the movable gasket provided integrally with the holding member. Door device. The method according to claim 1 or 2, After the holding member is operated, a rebound member is provided to return the holding member to its original state. Door device. The method according to claim 1 or 2, The pivot is a point for operating the holding member, The door is provided with a separation preventing member for preventing separation of the pivot shaft. Door device. The method of claim 9, The separation preventing member is a member that also serves as a bearing of the pivot shaft. Door device. An insulating box body having an opening in the front to form a storage compartment therein; Left and right open side doors rotatably supported at left and right sides of the opening of the storage compartment; A gasket provided on the upper and lower sides of the rear surfaces of the both side doors and the longitudinal side of the rear side of the supporting side of the both side doors to be in close contact with the opening front edge of the thermal insulation box when the door is closed; A pair of movable gaskets disposed on side surfaces of the non-supporting sides of the both doors to be in close contact with each other when the door is closed; A rotating shaft disposed on side surfaces of the non-supporting sides of the both side doors, A holding member for holding the movable gasket and rotating the pivot shaft to a point; A repulsion member for returning the holding member to its original state after the holding member is rotated; A latch portion mounted to the holding member; A guide part provided on the heat insulation box body and joined to the latch part to rotate the holding member to the pivot shaft as a point; When the door is opened, the latch part and the guide part are joined to rotate the holding member to release the close contact between the movable gaskets, and then the door is opened, and the holding member is brought into a state of closing the door by the repulsive member. With door mechanism for returning Refrigerator. An insulating box body having an opening in the front to form a storage compartment therein; Left and right open side doors rotatably supported at left and right sides of the opening of the storage compartment; A gasket provided on the upper and lower sides of the rear surfaces of the both side doors and the rear longitudinal side of the support side of the both side doors to be in close contact with the opening front edge of the thermal insulation box when the door is closed; A pair of movable gaskets disposed on side surfaces of the non-supporting sides of the both doors to be in close contact with each other when the door is closed; A rotating shaft disposed on side surfaces of the non-supporting sides of the both side doors, A holding member for holding the movable gasket and rotating the pivot shaft to a point; A repulsion member for returning the holding member to its original state after the holding member is rotated; A latch portion mounted to the holding member; A guide part provided on the heat insulation box body and joined to the latch part to rotate the holding member to the pivot shaft as a point; The door device which returns the said holding member by the said repulsion member, and makes the said movable gasket adhere to each other, after rotating the said holding member to the close contact direction of the said movable gasket by joining the said latch part and the said guide part at the time of door sealing. With Refrigerator. The method according to claim 11 or 12, The latch portion is provided above the holding member, and the guide portion is provided on the upper surface of the storage chamber. Refrigerator. The method of claim 13, A plurality of storage rooms are provided, and a door device is provided in a storage room at the top of the plurality of storage rooms. Refrigerator.

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