CN1170105C - Door device and refrigerator - Google Patents

Abstract

A door device capable of increasing the food storability of a refrigerator, reducing a door opening force, and increasing an easiness in a handling, and a refrigerator having a power consumption reduced by the door device, wherein biparting doors (46, 47) are provided on the opening part of a storage chamber (44a) on the upper side of a heat insulated box body (43), movable gaskets (73) are installed on holding members (68, 69) and through holding members (68, 69), and a guide part (48) provided on the top surface of the storage chamber (44a) is allowed to abut on the latch parts (64, 65) of the holding members (68, 69) so as to operate the movable gaskets (73), whereby the simple door device allowing the movable gaskets (73) to be adhered to and apart from each other can be provided.

Description

Door Units and Refrigerators

technical field

The present invention relates to a door device and a refrigerator equipped with the door device.

Background technique

In recent years, along with the increase in size of refrigerators, refrigerators using a so-called double door device that opens and closes the opening of a storage room with two doors have been adopted.

The refrigerator with two side-by-side doors in the prior art maintains the airtightness in the refrigerator by setting the gasket on the inside of the two doors. To this end it is necessary to form a face which contacts the gasket on the non-pivot bearing side of the door. Therefore, it is necessary to attach a blocking device for dividing the contact surface to the opening of the heat insulating box.

As a conventional door device, there is, for example, a door device disclosed in JP-A-1-208690.

Hereinafter, the above-mentioned conventional door device will be described with reference to the drawings.

Fig. 10 is a perspective view of a prior art refrigerator.

Fig. 11 is a front view of a prior art refrigerator.

Fig. 12 is a sectional view of an opening plane of a conventional refrigerator.

Fig. 13 is a perspective view of a prior art refrigerator door.

In the refrigerator shown in FIGS. 10 to 13 , an outer box 2 made of steel plate, an inner box 3 made of synthetic resin, and an unillustrated foam insulation material filled between the two boxes 2 and 3 are formed in front. Open heat insulation box 4. The opening 5 is constituted by two side-by-side doors 7 and 8 rotatably supported on the left and right edges of the opening 5 of the heat insulating box 4 by vertical hinges.

Guide members 9 are provided oppositely above and below the edges of the opening 5 of the heat insulating box 4 at the portions on the respective non-pivot support sides of the doors 7 , 8 . A guide groove 10 is formed in the guide member 9 . The doors 7 , 8 are composed of pivot members 11 , 12 , outer frame members 15 , 16 , inner panels 21 , 22 , and a heat insulating material 23 . The door inner panels 21 , 22 are formed by contacting the inner flanges 17 , 18 of the frame members 11 , 12 . The heat insulating material 23 is foamed and filled between the outer frames 15 , 16 and the door inner panels 21 , 22 respectively.

A pair of left and right vertical walls 24, 25 are formed on the door inner panels 21, 22, respectively. In addition, spacers 28 incorporating magnets are attached to the grooves 26 and 27 at the ends of the frame members 11 and 12 . Its edge strips 29 are closely attached to the vertical walls 24, 25 on the non-pivot support side respectively. The gasket 28 seals the interior 30 of the refrigerator by adhering to the front edge of the outer box 2 of the opening 5 of the heat insulating box 4 when the doors 7, 8 are closed.

In addition, a partition body 31 having a slightly shorter cross-section is attached to the outer side of the vertical wall 24 located on the inner side of the gasket 29 on the non-pivot support side in the back of the door 7 . The hinge plate 32 is fixed to the reinforcing plate 33 on the side of the heat insulating material 23 by screws 34 at two positions above and below the outer surface of the vertical wall 24 . The partition body 31 is rotatably supported on the reversing shaft 35 of the hinge plate 32 . The partition body 31 extends vertically with a length that bridges the edge of the opening 5 and is slightly shorter than the upper and lower guide members 9 , the guide grooves 10 of the guide member 9 , and the distance between the guide grooves 10 . The front plane is used as a plane to install a steel plate 36 as shown in FIG. 3 .

In addition, protrusions 37 are protrudingly formed on the upper and lower ends thereof in the vertical direction as fitting portions. The hinge plate 32 is inserted into the partition body 31 through two cutouts 38 formed up and down from the rear edge portion of the partition body 31 on the door 7 side, and the pivot shaft 35 is positioned thereon. A spring member 39 composed of a coil spring is inserted into the reversing shaft 35 so that one end fits with the hinge plate 32 and the other end fits with the pawl 40 in the separator 31 separated from the reversing shaft 35 . In this way, the separator 31 can be rotated in the clockwise direction as indicated by the arrow 410 in FIG. 12 at normal times by the restoring force of the coil spring.

Next, the operation of the conventional door device constructed as described above will be described.

When the door 7 is opened, the partition body 31 is held in contact with the screw 34 along the outer surface of the vertical wall 24 of the door inner panel 21 by the restoring force of the spring member 39 as shown by the dotted line in FIG. 12 . In this initial state, after the user's hand touches the separator 31 accidentally, even if it is turned counterclockwise in FIG. 12 , it can still be restored to the initial state by the spring member. This operation is performed regardless of the swing angle of the separator 31 . Therefore, the rear door 7 that the partition body 31 moves back is still closed, which can prevent damage caused by the protrusion 37 of the partition body colliding against the protruding portion of the guide member 9 .

Then when the door 7 is closed, the partition body 31 almost enters the guide groove 10 and slides along the curved surface in the guide groove 10, and the partition body 31 rotates anticlockwise counterclockwise with the reversing shaft 35 as the center against the spring member 39. The protrusion 37 enters the deep portion of the guide groove 10 . On the contrary, when the door 7 is opened, the protrusion 37 slides along the curved surface in the guide groove 10 . At this time, the separator 31 is reversed clockwise by the restoring force of the spring member 39, and almost returns to the initial state.

However, in the configuration of the prior art described above, the partition body 31 is installed on the outer side of the vertical wall 24 of the door 7 . Therefore, when the two doors 7, 8 were closed, the airtightness of the interior 30 of the refrigerator was kept well by the gasket 29. When the door is opened, the partition body 31 retracts the outer side of the vertical wall 24 . The partition 31 must therefore provide space for pivoting within the doors 7 , 8 . This means that the longitudinal walls 24, 25 have to be moved to the pivot support side of the door. Therefore, the food storage space in the doors 7 and 8 is reduced, and it is inconvenient for the user to store food.

In addition, when the door 7 is opened and closed, the protrusion 37 of the partition body 31 slides reciprocally by 1090 degrees along the guide groove of the guide member 9 . Therefore, the coefficient of friction between the protrusion 31 and the guide groove 10 increases. The opening force of the door 7 is increased, which is inconvenient for the user when the door is closed.

In addition, even if the user thinks that the door is closed, if it is incompletely closed due to the frictional force and the reaction force of the spring member 39, the freshness of the food may decrease due to the temperature rise in the refrigerator.

In addition, since the partition body 31 is completely in the refrigerator 30 position, it becomes a state of being cooled by cold air in the refrigerator when the door is closed, so the steel plate 36 formed in the partition body is also cooled. The steel plate 36 tends to condense due to contact with the outside of the refrigerator. As a corresponding measure, it is therefore necessary to fit a component as a heat source (for example a heater) in the partition. As a result, the heat absorption of the refrigerator increases and its power consumption increases.

Contents of the invention

In view of the above problems, the present invention aims to provide a door device that can effectively secure a food storage space inside a door, has a small door opening force, and is easy to use.

Another object of the present invention is to provide a refrigerator capable of reducing electric power by restricting a door device that absorbs heat in a door sealing configuration.

Description of drawings

Fig. 1 is an external front view of Embodiment 1 of a refrigerator according to the present invention.

Fig. 2 is a perspective view of the interior of the refrigerator according to Embodiment 1.

Fig. 3 is a perspective view of the door back of the door refrigerator according to Embodiment 1.

Fig. 4 is a cross-sectional view of the door of the refrigerator according to Embodiment 1 taken along line 4-4 in Fig. 1 .

Fig. 5 is a cross-sectional view of the door of the refrigerator according to Embodiment 1, taken along line 5-5 in Fig. 1 .

Fig. 6 is an external front view of Embodiment 2 of the refrigerator of the present invention.

Fig. 7 is a perspective view of the interior of the refrigerator according to Embodiment 2.

FIG. 8 is a perspective view of the inside of the door in Embodiment 2. FIG.

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

Fig. 10 is a perspective view of a prior art refrigerator.

Fig. 11 is a front view of a prior art refrigerator.

Fig. 12 is a sectional view of a main part of a conventional refrigerator.

Fig. 13 is a perspective view of main parts of a conventional refrigerator.

Detailed ways

Embodiments of the door device of the refrigerator according to the present invention will be described below with reference to the drawings.

(Embodiment 1)

Fig. 1 is an external front view of a refrigerator according to Embodiment 1 of the present invention. Fig. 2 is a perspective view of the interior of the refrigerator according to Embodiment 1. FIG. 3 is a rear perspective view of the door device according to Embodiment 1. FIG. Fig. 4 is a sectional view of the door taken along line 4-4 of Fig. 1 . Fig. 5 is a sectional view taken along line 5-5 of Fig. 1 .

In the refrigerator body 40 from FIGS. 1 to 5 , an outer box 41 made of steel plate, an inner box 42 formed of resin, and an unshown foam heat insulating material filled between the two boxes 41 and 42 are formed at the front. Opened insulated box. The heat insulation box 43 includes a plurality of storage chambers 44a, 44b, 44c. The uppermost storage compartment 44a has a structure that can be opened and closed by two bifurcated doors 46 and 47 that are pivotally supported on the left and right edges by vertical hinges 45 .

In the heat insulating box 43 , on portions where the doors 46 , 47 are positioned on the respective non-pivot support sides, a guide portion 48 is provided on an upper portion of an edge portion of the opening portion 44 of the heat insulating box 43 .

Two protrusions 49 having the same shape and having a rounded tip are formed side by side in the left direction of the opening 44 on the guide portion 48 .

The doors 46 , 47 include door outer panels 48 , 49 , flanges 50 , side panels 51 , 52 , door inner panels 53 , 54 , and foam insulation 55 .

Here, the flange 50 is formed on the outside of the box Glyph, is installed on the side of the non-pivot support side of door 46,47. The side plates 51, 52 have recesses 51a, 52a. The door inner panels 53 , 54 abut against the outer peripheral flanges of the side panels 51 , 52 . The foam insulation material 55 is foamed and filled between the outer plates 48 , 49 , the side plates 51 , 52 and the inner plates 53 , 54 .

In addition, the door storage parts 53a, 54a are formed on the indoor side of the inner surface of the doors 46, 47 by the inner panels 53, 54. As shown in FIG.

Grooves 56, 57, ribs 58, 59, stoppers 64, 65, holding members 68, 69 are installed in the recesses 51a, 52a of the door side panels 51, 52, wherein the front ends of the ribs 58, 59 are aligned with the recesses. 51a, 52a are in contact.

The stopper parts 64, 65 have inclined surfaces 60, 61, 62, 63, and are positioned at the same height as the protrusion 49 of the guide part 48 when the door is closed. The holding members 68 , 69 include return shafts 66 , 67 .

The holding members 68 and 69 are extended in such a dimension that the openings straddle the upper and lower sides. Moreover, the holding members 68, 69 are supported in the recesses 51a, 52a of the door side plates 51, 52 so as to be freely pivotable around the pivot shafts 66, 67. And the holding members 68, 69 are used for preventing the door side panels 51, 52 of the reversing shafts 66, 67 from falling off, and are fixed by the falling-off preventing members 70, 71 . The fall-off preventing members 70 and 71 also function as bearings for the rotary shafts 66 and 67 .

In the grooves 56 , 57 of the holding members 68 , 69 , pockets 72 are provided on the outer front ends of the case. In addition, movable spacers 73 containing magnets 73a magnetized to different magnetic poles are installed in the slots 56, 57 in the shape of facing each other with the holding members 68, 69 and have the same longitudinal length.

In addition, fixed pads 73b are mounted on the inner upper and lower sides of the doors 46, 47 and on the inner longitudinal sides of the pivoting sides of the doors 46, 47.

Spring members 74 , 75 made of coil springs are inserted into the return shafts 66 , 61 . One end of the spring members 74, 75 is connected to the side plates 51, 52, and the other end is connected to the holding members 68, 69, and are close to each other. When the doors 46 , 47 are closed, the ribs 58 , 59 come into contact with the concave bottom surfaces of the door side panels 51 , 52 to seal the box interior 76 . In addition, the bag portion 72 of the movable packing 73 is in contact with the flange portion 50 to seal the box interior 76 .

Next, the operation of the refrigerator including the door device constructed as described above will be described.

When the side-by-side doors 46, 47 are in the closed state together, the surface of the movable liner 73 is made to be in the sealed box 76 by means of the restoring force of the spring members 74, 75. At this time, the bag shape 72 of the movable liner 73 abuts against the flange 50 of the door side panels 51, 52, and even if the cold air in the box 76 infiltrates between the door side panels 51, 52 and the holding members 68, 69 State, also can seal 76 in the box.

In addition, the movable spacers 73 are brought into a mutually attracted state by the engagement of the magnets 73 a of the opposite magnetic poles built in the movable spacer 73 . Thereby, the sealing performance of the box interior 76 can be surely improved. And because the edge parts 58, 59 are provided on the holding members 68, 69, the inside of the box 76 can be sealed even if cold air in the box 76 penetrates between the door side panels 51, 52 and the holding members 68, 69.

Next, when the door 47 is opened, the inclined surface 63 of the stopper portion 65 of the holding member 69 moves almost along the protrusion 49 of the guide portion 48 . Therefore, the holding member 69 pivots in the direction indicated by the arrow 200 with the pivot shaft 67 as a fulcrum. As a result, the mutual adhesion of the movable pads 73 is forcibly released. Therefore the surfaces of the movable liner 73 do not rub against each other when the door is opened. In this way, the durability of the pad can be improved, and although the static electricity generated by the friction of the pad surface will cause contamination, the pollution will not adhere to the pad surface. Also, friction noise due to friction of the pad does not occur. Also, since the force of opening the door can be reduced, the user's usability can be improved. When the door 47 is opened next, the inclined surface 61 moves along the protrusion 49 of the guide 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 reversing shaft 67 as a fulcrum. This prevents foreign matter from entering between the door panels 51 , 52 and the holding member 69 . This is also the same as in the door closed state.

Next, when the door 47 is closed, the inclined surface 61 and the inclined surface 63 move along the protrusion 49 of the guide portion 48 . Then perform the same action as in the state of opening the door to get the same effect.

In addition, the reversing shafts 66 and 67 are fixed by the disengagement prevention members 70 and 71 when the door is in the two states of the closed state and the open state. As a result, the retaining members 68 , 69 are not detached from the door side panels 51 , 52 by the restoring force of the spring members 74 , 75 and are stably and smoothly pivoted.

As described above, the door device of the present invention can realize a reliable sealing structure with a simple structure compared with the conventional sealing structure. Therefore, the door device is economical, and can ensure the reliability and stability of the operation, and the door device does not need a heat generating body for preventing dew condensation because it does not use a separator. In this way, the sealing effect of the door device simultaneously reduces the heat absorption in the storage chamber 44, thereby reducing the electric power consumption of the refrigerator.

In addition, when only one side door is provided with the above structure, since the number of components required to move the movable liner 73 is reduced by half, the assemblability of the refrigerator is improved and the material cost is reduced.

According to the above configuration, the partition body provided between the doors can be abolished depending on the operation. Therefore, the food storage space in the storage room 44a can be increased, especially the storage space of the door storage parts 53a and 54a inside the door, and the convenience of use can be improved.

Moreover, the guide part 48 corresponding to the stopper part 65 is set in the upper surface in the storage room 44a. Therefore, the guide part 48 will not interfere with the entry and exit of articles in the storage room 44a, and will not affect the storage capacity of the storage room.

In addition, since the door device is installed on the uppermost storage room 44a, the storage space of the frequently used storage room faced by the user faces upwards, and the convenience of use can be improved.

In addition, in the present embodiment, the movable spacer 73 is provided between the two doors 46 and 47 of the split type.

In addition, the same effect can be obtained even if it is installed between two pull-out doors. In this case, the partition between the sliding doors can be abolished. Since the upper and lower dimensions of the storage container integrated with the pull-out door can be increased, the food storage space can be increased.

(Embodiment 2)

Fig. 6 is an external front view of a refrigerator according to Embodiment 2 of the present invention. Fig. 7 is a perspective view of the inside of the refrigerator of the embodiment. Fig. 8 is a perspective view of a door inner body of the refrigerator according to the embodiment. Fig. 9 is a sectional view of the door taken along line 9-9 in Fig. 6 .

In FIGS. 6 to 9 , refrigerator main body 71 includes outer case 78 made of steel plate, inner case 79 formed of resin, and heat insulator 80 opened at the front. The heat insulation box 80 includes an unshown foam heat insulation material filled between the two boxes 78 , 79 . Two side-opening doors 83 and 84 are pivotally supported on the left and right edges of the upper opening 81 of the heat insulating box 80 through the upper and lower hinges 82 . The doors 83 and 84 open and close the opening 81 .

The doors 83 and 84 are composed of door outer panels 85 and 86 , concave door side panels 87 and 88 , door inner panels 90 and 91 , and a heat insulating foam material 91 , respectively. Here, the door inner panels 90, 91 abut against the box inner peripheral flanges of the side panels 87, 88, respectively. The foam insulation material 91 is foamed and filled between the outer plates 85, 86, the side plates 87, 88 and the inner plates 89, 90 respectively.

Install grooves 92, 93 and edge strips 94, 95 on the concave portions 87a, 88a of the door side plates 87, 88 respectively in the recessed portions 87a, 87b of the door side plates 87, 88, and facing the box. The outer handle parts 96 , 97 and the handles 100 , 101 form the return axes 98 , 99 . The grooves 92 and 93 extend in a dimension bridging the upper and lower sides of the opening. The handles 100 and 101 are freely supported around the revolving shafts 98 and 99 . The movable pads 103 face each other and are mounted on the grooves 92 , 93 with the same dimensions as the grooves 92 , 93 . The movable pad 103 houses a plurality of magnets 102 magnetized into different magnetic poles. In addition, the magnet 102 is magnetized in a state where the movable pads 103 face each other so that the north pole and the south pole face each other.

On the inner upper and lower edges of the doors 83,84 and on the inner longitudinal edges of the pivoting sides of the doors 83,84 are fixed gaskets 103a.

Members 104 , 105 made of coil springs are inserted through the return shafts 98 , 99 as resistance members. One end of the spring member 104 , 105 is in contact with the side plate 87 , 88 and the other end is in contact with the handle 100 , 101 . When the doors 83 , 84 are closed, the rib portions 94 , 95 are in contact with the bottom surfaces of the concave-shaped portions 87 a , 88 a of the door side panels 87 , 88 . Therefore, the edge portions 94 , 95 seal the gap with the storage chamber 106 .

Next, the operation of the refrigerator constructed as described above will be described.

When the two side-by-side doors 83 and 84 are in the closed state at the same time, the surface of the movable gasket 103 becomes in a state of being in close contact with each other by the restoring force of the spring members 104 and 105 so as to seal the inside 106 of the box. Furthermore, the movable pads 103 are brought into a state of close contact with each other by the engagement of the magnets built in the movable pads 103 . The movable gasket 103 thus seals the box interior 106 . And the edge parts 94, 95 provided on the handles 100, 101 can seal the box 106 even when cold air in the box 106 infiltrates between the door side panels 87, 88 and the grooves 92, 93.

Then when grasping the handle 101 with the hand to open the door 84, the handle 101 is turned back as shown by the arrow 220 with the turning axis 99 as the fulcrum. Thereby, the mutual adhesion state of the movable pads 103 is forcibly released. Therefore, when the door is opened, the surfaces of the movable liner 103 do not rub against each other, so that the durable strength of the liner can be improved. And it will not adhere to dirt due to static electricity generated by friction on the surface of the pad. In addition, the friction sound caused by the friction of the pad surface does not occur. Thereby, the force to open the door can be reduced, and the user's convenience can be improved.

In addition, after opening the door 84, when the hand is released from the handle, by the restoring force of the spring member 105, the handle 101 returns to the same state as the closed state of the door with the reversing shaft 99 as a fulcrum. In this way, foreign matter will not enter between the door side panel 88 and the handle 101 . This is also true in the closed door state.

Then, when closing the door 84, in many cases, the magnets 102 in the movable pad 103 face each other between the same poles at first, and like this, because the magnets 102 repel each other, the movable pad 103 also repels each other, so , the surfaces of the movable pad 103 do not rub against each other, and the same effect as when opening the door can be obtained. When the door 84 continues to be closed, the opposite magnetic poles of the magnet 102 in the movable pad 103 start to attract each other. Finally, the movable gasket 103 ensures the sealed state because the opposite magnetic poles are close to attract each other.

According to the above structure and operation, as long as the handle 101 is operated with a very light force, the dense state of the movable gasket 103 can be released, and the doors 83, 84 can be opened. Therefore, the user's door operation becomes easy.

In addition, similarly to Embodiment 1 described above, the partition body provided between the doors 83 and 84 in the prior art can be abolished. Therefore, the food storage space in the storage room 106 can be increased, and the user's convenience can be improved. At the same time, electric power consumption can be reduced because a heating element for preventing dew condensation is unnecessary.

The door device of the present invention can seal the two doors between the gaskets without using a partition, and thus has the effect of low cost and can increase the food storage space inside the box. In addition, since the door device simplifies the sealing structure, the space of the effective storage room in the refrigerator is increased, and the economical efficiency is improved.

In addition, the door device of the present invention has a high degree of adhesion between the doors due to the adhesion of the gasket and the magnets inside, so that the inside and outside of the box can be reliably sealed.

Here, since the magnets facing each other when the door is closed are turned into opposite magnetic poles, the pads will not rub against each other due to the interaction of the opposite magnetic poles. It is therefore possible to perform sealing while maintaining the durable reliability of the gasket.

In addition, the door device can open the door with very light force through the action of the movable pad.

In addition, in this door device, the gasket can be moved smoothly by the stopper and the guide. The durability of the pads is improved because the pads do not rub against each other, and the force to close the door is reduced.

In addition, the door device can maintain the durability of the gasket and reduce the force when the door is opened and closed by the guide portion.

In addition, in this door device, the gasket can be easily moved with a small force by the handle, and the force for opening and closing the door can be further reduced.

In addition, the door device makes the holding part return to the installation state before the action by repelling the part, and can prepare for the following action, thereby improving the reliability of the action.

In addition, since the disengagement prevention member provided on the door prevents disengagement of the reversing shaft, the operational reliability of the holding member can be improved.

In addition, the holding member, which is also a member serving as a bearing of the rotary shaft, improves the operational reliability and stability of the holding member.

In addition, operability can be improved by reducing the door opening force.

In addition, the reduced door opening force improves operability. In addition, electric power consumption can be reduced by not using a heat generating body for dew condensation prevention.

In addition, since the refrigerator of the present invention is provided with a stopper on the top of the holding member and a guide on the top of the storage compartment, it does not hinder the entry and exit of items in the storage compartment and does not affect the storage performance.

In addition, the refrigerator of the present invention is equipped with a door device in the uppermost storage room of the plurality of storage rooms. Therefore, users can look at each other face to face, and it is convenient to use because the storage space of the frequently used storage room can be increased.

As mentioned above, this invention provides the door apparatus and refrigerator which have many practical effects.

Claims (13)

1. door gear comprises:

The peripheral part of the peristome of casing make a side arranged opposite two doors, be arranged on the inside of the periphery beyond the above-mentioned side of above-mentioned two doors and when door is closed adherence at the liner of the peristome leading edge of above-mentioned casing, be configured on the above-mentioned side of above-mentioned two doors and a pair of liner of mutual adherence when door is closed;

At least one liner is movable liner in the above-mentioned a pair of liner;

When opening, by to make above-mentioned movable pads be the center with the fulcrum with from cooperating side to move the mutual adherence of the above-mentioned a pair of liner of releasing with deviating from.

2. door gear comprises: can freely lean in the peristome left and right sides of casing the opposite opened of pivotal support two doors, be arranged on the inside longitudinal edge of the pivotal support side of following and above-mentioned two doors on the inside of above-mentioned two doors and when door is closed the liner on the peristome leading edge of adherence at above-mentioned casing, be configured on the side of non-pivotal support side of above-mentioned two doors and a pair of liner of mutual adherence when door is closed;

At least one liner in the above-mentioned a pair of liner is a movable pads;

When opening, by to make above-mentioned movable pads be the center with the fulcrum with from cooperating side to move the mutual adherence of the above-mentioned a pair of liner of releasing with deviating from.

3. door gear as claimed in claim 1 or 2 is characterized in that: be equipped with magnet on the inboard of the adherence face of above-mentioned a pair of liner.

4. door gear as claimed in claim 3 is characterized in that: above-mentioned magnet is a plurality of,

Opposed above-mentioned magnet is magnetized to opposite pole respectively mutually when door is closed.

5. door gear as claimed in claim 1 or 2 is characterized in that: comprising:

Be arranged on above-mentioned and go up and keep the holding member of above-mentioned movable pads and action;

Be installed in the retainer of above-mentioned holding member;

Be arranged on the above-mentioned casing and by contact the guide portion that makes above-mentioned holding member action with above-mentioned retainer;

When opening, be to reverse in the center with the fulcrum, remove the mutual adherence of above-mentioned a pair of liner by making above-mentioned holding member.

6. door gear as claimed in claim 5 is characterized in that: the handle that makes above-mentioned movable pads action that is wholely set with above-mentioned holding member is set on above-mentioned door.

7. door gear as claimed in claim 5 is characterized in that: be provided with after the action of above-mentioned holding member and make above-mentioned holding member turn back to the bounce-back member of previous status.

8. door gear as claimed in claim 5 is characterized in that: above-mentioned door is provided with and is being used to the reverse shaft that is provided with on the fulcrum that above-mentioned holding member is moved and is preventing the fall-out preventing component that above-mentioned reverse shaft comes off.

9. door gear as claimed in claim 8 is characterized in that: above-mentioned fall-out preventing component is the parts that are also used as the bearing of above-mentioned reverse shaft.

10. refrigerator comprises the door gear that is made of following parts:

Make the heat insulating box of front openings between inside formation storage room;

Two two doors splitting of pivotal support on the peristome left and right sides of above-mentioned storage room freely can reverse;

Be arranged on the inside longitudinal edge of the pivotal support side of following and above-mentioned two doors on the inside of above-mentioned two doors and the liner of adherence on the peristome leading edge of above-mentioned heat insulating box when door is closed;

Be configured on the side of the non-pivotal support side on above-mentioned two and a pair of movable pads of mutual adherence when door is closed;

Keep above-mentioned movable pads and be the holding member that fulcrum reverses with the reverse shaft;

After above-mentioned holding member reverses, make above-mentioned holding member turn back to the bounce-back parts of original state;

Be installed in the retainer on the above-mentioned holding member;

Be arranged on the above-mentioned heat insulating box and to make above-mentioned holding member be the guide portion that fulcrum reverses with above-mentioned reverse shaft by contacting with above-mentioned retainer;

In addition, when opening by above-mentioned retainer is contacted with guide sections above-mentioned holding member is reversed remove the mutual adherence of above-mentioned movable pads after, open door, the device of the state when above-mentioned holding member being turned back to close by above-mentioned bounce-back parts.

11. a refrigerator is characterized in that: comprise the door gear that is made of following parts:

Make the heat insulating box of front openings between inside formation storage room;

Can reverse pivotal support freely at two two doors splitting of the peristome left and right sides of above-mentioned storage room;

Be arranged on the inside longitudinal edge of the pivotal support side of following and above-mentioned two doors on the inside of above-mentioned two doors and the liner of adherence on the peristome leading edge of above-mentioned heat insulating box when door is closed;

Be configured on the side of the non-pivotal support side on above-mentioned two and a pair of movable pads of mutual adherence when door is closed;

Keep above-mentioned movable pads and with reverse the axle be the holding member that fulcrum reverses;

After above-mentioned holding member reverses, make above-mentioned holding member turn back to the bounce-back parts of original state;

Be installed in the retainer on the above-mentioned holding member;

Be arranged on the above-mentioned heat insulating box and to make above-mentioned holding member be the guide portion that fulcrum reverses with the reverse shaft by contacting with above-mentioned retainer;

In addition, when door is closed, make above-mentioned holding member after the mutual adherence releasing of above-mentioned movable pads direction is reversed, above-mentioned holding member is returned, make the mutual adherence of above-mentioned movable pads by above-mentioned bounce-back parts by above-mentioned stop component is contacted with guide sections.

12., it is characterized in that: on the top of above-mentioned holding member above-mentioned retainer is set, guide sections is set above in above-mentioned storage room as claim 10 or 11 described refrigerators.

13. refrigerator as claimed in claim 12 is characterized in that: be equipped with a plurality of storage rooms, equip door gear on the topmost storage room in above-mentioned a plurality of storage rooms.

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