JP3330800B2 - Pull-out door device for insulated box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer type door device provided in a heat insulating box, for example, a refrigerator body.

[0002]

2. Description of the Related Art Conventionally, a refrigerator having a multi-stage drawer-type door has a structure as shown in FIG. 11 and a front view as shown in FIG. In the refrigerator 1 of FIGS. 11 and 12, the outer peripheral surface of the surface except for the front part facing the user side is formed by the outer box 2, and the inner box 3 is disposed inside the outer box 2. Foam insulation 4 in the space between
Are stored, and as a whole, constitute a heat insulating box 5 having an opening 5A in the front. The opening 5A is divided by a closing member 29 disposed across the center in the vertical direction.
An upper drawer door (first door) 10 is provided in an upper stage above the closing member 29, and a lower drawer door (second door) 19 is provided in a lower stage below the closing member 29.

On the inner surfaces of both side walls of the inner box 3, rail receiving portions 7 for supporting the rails 6 are formed integrally with the inner box 3, and support rollers 8 are provided on the main body of the inner box 3 at the upper and lower stages, respectively. . A holding arm 18 for holding a food storage box 17 is detachably attached to the rail 6. The first door 1 is attached to the front end of the upper part of the holding arm 18.
The back surface of the second door 19 is fixed to the front end of the lower portion of the holding arm portion with a screw or the like. A gasket 15 is fixed around the back surfaces of the upper and lower first doors 10 and the second door 19 to keep the interior 20 of the heat insulating box 5 airtight.

The reason why the closing member 29 is provided is as follows. First door 10 and second door 1
9 with the gasket 15 provided on the back of each
In order to maintain the airtightness, it is necessary to form a surface with which the gasket 15 located at the middle position in the vertical direction of the opening 5A comes into contact. 29 is attached.

[0005]

However, the gasket 15 abuts against the front surface of the closing member 29 to maintain the airtightness of the interior 20. The closing member 29 crosses the opening 5A from side to side. In addition, since it protrudes into the refrigerator 20, there is a problem that the volume of the refrigerator 20 is reduced.

Further, when filling the foamed heat insulating material 4 between the outer box 2 and the inner box 3 of the heat insulating box 5, in order to prevent the inner box 3 usually made of synthetic resin from being deformed by foaming pressure. As shown in FIG.
It is inserted from the opening 5A by automatic equipment or the like. However, it is necessary to further set the inner jig 28 between the closing member 29 and the inner box 3, and the work load is increased due to an increase in the number of man-hours, and the equipment is complicated and large, and the cost is increased. There was a problem that the cost was increased.

[0007] The drawer-type food storage box 17 can be provided with the closing member 29 when the bottom is positioned too low.
Can not be pulled out because it is obstructed by
Therefore, there is a problem that the food cannot be stored at that position, so that a wasteful space is generated in the refrigerator 20.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is possible to keep the inside of the heat insulating box airtight without using a closing material, thereby making the closing material unnecessary. An object of the present invention is to provide a drawer-type door device for an insulated box that can reduce an equipment cost and a labor cost by eliminating an in-place jig at the time of producing the insulated box and reduce costs.

[0009]

The present invention has the following arrangement to solve the above-mentioned problems. The invention according to claim 1, wherein an upper first door and a lower second door are provided on the upper and lower sides of the opening so as to close the opening of the heat-insulating box having the opening, and are capable of being pulled out forward; A gasket that abuts the opening edge provided on the back edge of both doors, and a pair or only one guide portion located between the two doors and formed with a rod-shaped body protruding from the opening edge; First
The first back of the door has a length substantially spanning the edge of the opening.
The guide door extends in the left-right direction and is swingably supported by the first door, and a curved groove is formed at an end corresponding to the rod-shaped body of the guide section. A partition member that enters the interior of the refrigerator with the closing operation of the door and that the rod-shaped body fits into the groove and rotates, and an elastic member that urges the partition body in a direction that does not come into contact with the second door The partitioning body rotates when the first door opens, by the engagement between the rod-shaped body and the groove, and does not contact the second door due to the urging force of the elastic member. Position, and when the first door is closed, the partition is rotated by the engagement between the rod and the groove, and the rod is positioned at the end of the groove. Is substantially flush with the opening, so that the gasket of the second door and the front surface of the partition body come into contact with each other. Unisare, the guide portion, the partition
A seal that keeps the confidential inside the chamber in close contact with the body end
It is a drawer type door device of a heat insulation box characterized by the above-mentioned.

According to a second aspect of the present invention, an article storage box facing the outside by pulling out the first door is disposed so as to engage with the back side of the first door. The lower portion is formed at a position lower than the upper position of the partition body and at a position higher than the upper edge position of the second door. 2. A drawer-type door device for an insulated box according to claim 1, wherein a recess is formed which can prevent contact of said partition even when rotated by engagement with the door.

According to the third aspect of the present invention, the article storage box is formed at a depth slightly smaller than the vertical dimension of the first door. It is a door device.

According to a fourth aspect of the present invention, the elastic member includes a partition member.
When the front part faces forward, the front part of the partition
4. The drawer-type door device for an insulated box according to claim 1, wherein the door is urged in a direction in which it comes into close contact with the packet .

According to the first aspect of the present invention, when the first door is opened, the partition body is rotated by the engagement between the rod and the groove, and the second door is biased by the elastic member. Move to a position where it does not abut. Further, the partition body,
When the first door is closed, the partition is rotated by the engagement between the rod and the groove, and the front surface of the partition is substantially flush with the opening in a state where the rod is located at the end of the groove. As a result, the gasket of the second door comes into contact with the front surface of the partition.

Therefore, the gaskets on the back surfaces of the first door and the second door come into contact with the partition body, and the airtightness of the heat-insulated box closed by each door can be maintained. That is, the air-tightness of the heat-insulating box body can be maintained without using the conventional blocking material, and thus the blocking material can be eliminated. Also,
A tool section is provided between the end of the partition body and the guide
Airtightness can be reliably maintained.

According to the second aspect of the present invention, the article storage box facing the outside by pulling out the first door is disposed so as to engage with the back side of the first door. By pulling out the door, the article storage box can be pulled out.

The lowest part of the bottom of the storage box is formed at a position lower than the upper part of the partition and above the upper edge of the second door. According to this, the bottom portion of the storage box is located at the lower position as compared with the case where the bottom of the storage box is located at the upper position of the partition body, so that the volume of the storage box can be increased. Therefore, when the conventional blocking member is used, a wasted space is generated in the storage. In claim 2, even the wasted space can be used as a storage space, and the space in the storage can be effectively used. Can be used.

At the same time, a recess is formed in the front portion of the bottom so that the partition can be prevented from contacting the partition even if the partition rotates by engaging with the rod-shaped body of the guide. Can be reliably rocked without being disturbed.

It is to be noted that the article storage box is provided in the first
If the first and second doors are formed to have dimensions slightly smaller than the vertical dimension of the door, the article storage box can be formed to have a maximum dimension that can be taken in and out by opening and closing the first door.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. Note that FIG. 11 to FIG.
The same parts as those in 3 are denoted by the same reference numerals. 1 to 7 are explanatory diagrams of a refrigerator according to Embodiment 1 of the present invention.
1 and 2 are longitudinal sectional views for explaining the opening and closing of the door of the refrigerator, FIG. 3 is a perspective view of the appearance of the refrigerator, FIG. 4 is an explanatory view of a state where the door is removed, and FIG. Cross-sectional view along the line, FIG.
FIG. 7 is a perspective view of the upper door viewed from the rear, FIG. 7A and FIG. 7B are detailed views of the end face of the partition, and FIG. 8 is an explanatory view of the heat insulating box when a foaming jig is inserted. It is.

In the drawing, reference numeral 1A is a refrigerator. The refrigerator 1A has a refrigerator compartment 20 from the center in the vertical direction to the lower end as viewed from the front. Normally, the opening 5A of the refrigerator compartment is closed by the upper first door 10 and the second door 19, and the doors 10, 19 are pulled by pulling the respective doors 10, 19 forward. , Pull out the food storage box parts 17, 17 provided on the back side thereof,
Food can be stored in and taken out of the food storage boxes 17. In addition, refrigerator 1A
Has a freezer compartment (or another refrigeration compartment) 41 that is opened and closed by a single-door door 40.

The refrigerator 1A has an outer box 2 made of steel,
A heat insulating box 5 is composed of an inner box 3 formed by molding a synthetic resin disposed inside the outer box 2 and a foam insulating material 4 filled between the two boxes 2 and 3. The interior 20 can be viewed from the front opening 5A of the 1A (of the heat insulating box 5).

On the inner surfaces of both side walls of the inner box 3, a rail 6 for guiding the movement of the holding arm 18 in the front-rear direction (the direction from the opening 5A to the inner side of the refrigerator) to be described later is supported. A gutter-shaped rail receiving portion 7 extending from the opening integrally formed with the inner box 3 to the back side;
A rotatable support roller 8 for supporting the holding arm 18 provided in the vicinity of A, and a guide 9 protruding from the left and right edges of the opening 5A so as to face each other.

The guide portion 9 has a flat front surface and is substantially flush with the opening 5A. Also, the guide section 9
A cylindrical pin (corresponding to a rod-like body) 9A protrudes from the left and right of the opening 5A so as to face each other. The guide portion 9 has a seal facing the opening end surface (longitudinal end) of the partition portion 21 and a front portion of the pin 9A, which is in close contact with the partition portion 21 and maintains airtightness between the guide portion 9 and the guide portion 9. The part 25 is fixed (corresponding to claim 4). With this seal portion 25, the airtightness of the inside of the refrigerator 20 can be reliably maintained.

In the refrigerator 1A, the first door 10 is large enough to cover almost the upper half of the opening 5A.
A, and the second door 19 is located at the lower stage of the opening 5A having a size such that the first door 19 blocks substantially the lower half of the opening 5A. It is fixed to the holding arm 18 and moves parallel to and away from the opening 5A.

As shown in FIG. 5, the first door 10 located at the upper stage is formed by foaming and filling a heat insulating material 13 between an outer plate 11 on the front side and an inner plate 12 on the back side. . As shown in FIG. 6, the inner plate 12 has a lower peripheral portion 12r and a portion 12c other than the peripheral portion has a higher step, and a lower end of the raised portion 12c has a shelf-shaped projecting wall facing rearward. 14 is formed, and a gasket 15 made of a flexible resin material into which a magnet is inserted is attached to the stepped portion of the peripheral edge 12r of the inner plate 12. In addition, door 1
The front end of the holding arm 18 for holding the food storage box 17 is fixed to the inner plate 12 on the back side of the inner plate 12 at the upper end of the portion 12c with a screw 16 or the like.

The gasket 15 and the holding arm 18 are also attached to the second door 19. Gasket 1
Reference numeral 5 denotes an opening 5A of the heat-insulating box 5 when the first door 10 and the second door 19 close the opening 5A. Is to be sealed.

In the first door 10, a pair of generally L-shaped hinges 24 made of metal or synthetic resin are formed on the lower surface of the projecting wall 14 below the inner plate 12 so that one side 24 A of the hinge 24 contacts the projecting wall 14. The partition member 21 is fixed and pivotally supported on the other side 24B of the pair of hinges 24 so as to be swingable. Therefore, the partition 21 on the lower rear surface of the lower part of the first door 10 accommodates the other side 24B of the hinge 24 in the notch 21A and provides the support shaft 21B in the notch 21A, so that the partition 21 can be placed in a different place. I do not take it.

The partition 21 is, as shown in FIG.
When the upper first door 10 closes the opening 5A, the front part 21C faces the front of the refrigerator 1A, and the front part 21C of the second door 19 together with the gasket 15 of the first door 10 is provided. This is for keeping the gasket 15 in close contact with the gasket to ensure airtightness in the refrigerator.

The partition 21 has a substantially thick plate shape made of a synthetic resin material almost entirely, and its length in the longitudinal direction is slightly smaller than the width dimension of the opening 5A in the right and left direction (that is, (Almost the length of the edge of the opening 5A).

The partition 21 has a flat front surface 21C, and a steel plate 22 is attached to the front surface 21C to ensure good adhesion to the gasket 15.

A substantially semicircular groove 23A is formed in the left and right end surfaces of the partition member 21 so as to face the guide portion 9 and to have the pins 9A slidably fitted and fitted therein. . As shown in FIGS. 1 and 7, in the state where the partition body 21 faces the vertical direction in the width direction and the front part 21 </ b> C faces forward with the first door 10 closed, the groove 2 is closed.
3A is a semi-circular shape (an example of a curved shape, which can be appropriately selected) that bulges rearward. At the same time, the groove 2
An opening 23C into which the 3A pin 9A enters is open to the lower surface 21D side of the partition body 21 and a terminal end 23B is located near the inner plate protruding wall 14 and is closed.

As shown in FIGS. 2 and 7 (a), the partition 21 is urged by a spring 26 so that the front surface 21C faces downward (the opening 23C of the groove faces backward). (Urged by the force in the Y direction in FIG. 7A), and
As shown in FIG. 1 and FIG.
In a state where C faces forward (the opening 23C of the groove is downward), the spring 26 is applied in a direction in which the front surface 21C of the partition body comes into close contact with the gasket 15, and a force in a different direction from the above (FIG. 7 (b)).
The spring 26 is, for example, a coil spring having a toggle portion 26A in the middle, and one end is fixed to one side 24A of the hinge 24 and the other end is fixed to the partition body 21. . The partition 21 has a recess (not shown) in which the spring 26 is housed.

In the refrigerator having the above structure, when the first door 10 in the upper stage is opened as shown in FIG. 2 and the first door 10 is closed as shown in FIG. Then, the pin 9A is fitted into the semicircular groove 23A from the opening 23C, and abuts and engages.
Further, the groove 23A moves while being engaged with the pin 9A. As a result, the partition 21 rotates and, in the state where the first door 10 is closed, the gasket 15 on the partition 21 side of each of the doors 10 and 19 becomes the front part 21 of the partition 21.
C, and the sealing material 25 is in close contact with the left and right ends of the partition 21 to hermetically seal the inside 20 of the compartment. In addition,
The partition member 21 is urged by the spring 26 in a direction in which the front surface portion 21C and the gasket 15 come into close contact with each other.

Next, when the first door 10 is to be opened (pulled out to the front), the door 9 is opened to the front so that the pin 9A can be opened.
And the groove 23A in which it slidably coincides, the partition 21 pivots so that its front face 21C faces downward, whereby the gasket 15 is separated from the partition 21 and thereafter The door 10 is easily opened (pulled out). At this time, as shown in FIG. 2, a force in the different direction (Y direction) is applied to the partition body 21 by the toggle portion 26A of the spring 26 and the front surface portion 21C is promptly turned downward. Be moved.

As described in the first embodiment, the heat-insulating box 5 of the present invention has a conventional closing member 29 (FIGS. 11 and 1).
2). Therefore, in forming the heat insulating box 5, as shown in FIG. 8, when filling the foam heat insulating material 4 between the outer box 2 and the inner box 3, the inner box 3 is prevented from being deformed by foaming pressure. Jig 30 to be used for
The part for zero is an integral part 30A, and is configured in an integral shape without the need to provide a partition (vertical conventional foaming jig 28) in the interior 20 corresponding to the drawer doors 10 and 19. . Therefore, since an in-place jig is not required, the work load can be reduced, and the equipment can be simplified and downsized, so that the cost can be improved.

Next, a second embodiment corresponding to claims 2 and 3 of the present invention will be described. 9 and 10 are longitudinal sectional views of the refrigerator 10A according to the second embodiment in a state where the first door 10 is closed and the door 10 is open. The same parts as those in the first embodiment are denoted by the same reference numerals.

In the second embodiment, as shown in FIG. 9, the depth of the recess 3 is slightly smaller than the vertical dimension of the drawer-type first door 10 and can avoid contact due to rotation of the partition 21.
A food storage box 31 having 1A is formed. The storage box 31 is detachably attached to a support arm 18 fixed to the first door 10 with screws 16.

Further, when the first door 10 is opened (pulled out), as described in the first embodiment, the partition body 21 does not rotate and does not hit the second door 19, and The partition 21 can be pulled out without hitting the bottom of the storage box 31 by the recess 31A.

In the storage box 31 described above, the bottom volume 31V is larger than in the storage box 17 of the first embodiment, and the capacity for storing food can be increased, which is extremely effective.

In the first and second embodiments, the guide portions are provided at the left and right ends of the opening 5A. However, the present invention is not limited to this, and the guide portions are provided only on one side. Is also good. Further, the heat-insulating box of the present invention is not limited to a refrigerator, and the present invention can be applied to a box that performs other types of heat insulation. Further, the biasing member of the partition body is not limited to the spring having the toggle portion, but can bias the partition body, and a member suitable for use of the heat insulating box can be appropriately selected.

[0041]

As described above, according to the first aspect of the present invention, it is possible to maintain the airtightness of the inside of the heat insulating box without using the plugging material, and to eliminate the need for the plugging material. Occasionally, an in-house jig is not required, so that equipment and labor costs can be reduced, and costs can be reduced. Claim 1
According to the invention, the airtightness in the storage can be reliably maintained. According to the second and third aspects of the present invention, the storage box can be used as a storage space by increasing the depth of the storage box to a useless space in the storage, which is generated when the conventional closing member is used. And the space in the warehouse can be used effectively. Therefore, the storage efficiency becomes very good.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a refrigerator according to Embodiment 1 of the present invention, and is a longitudinal sectional view of a heat-insulated box body with a first door closed.

FIG. 2 is a longitudinal sectional view of the heat-insulating box of FIG. 1 with a first door opened.

FIG. 3 is an external perspective view of the heat insulating box.

FIG. 4 is an explanatory view of the heat-insulating box as viewed from the front with a door removed.

FIG. 5 is a cross sectional view taken along line VV of FIG. 3;

FIG. 6 is an explanatory perspective view of the first door at the upper stage as viewed from the rear.

FIGS. 7A and 7B are detailed views of an end face of the partition body, in which FIG. 7A is a state diagram in which the front surface of the partition body faces downward, and FIG. 7B is a state diagram in which the front surface of the partition body faces forward. .

FIG. 8 is an explanatory view when the foaming jig is inserted into the heat insulating box of the first embodiment.

FIG. 9 is an explanatory view of Embodiment 2 of the present invention, and is a longitudinal sectional view illustrating a state in which a first door is closed.

FIG. 10 is an explanatory view of the second embodiment, and is a longitudinal sectional view illustrating a state in which a first door is opened.

FIG. 11 is an explanatory view of a conventional refrigerator having a drawer type door.

FIG. 12 is a front view of the heat insulating box of the refrigerator of FIG. 11;

FIG. 13 is an explanatory view of an inserted state of a foaming jig in a conventional refrigerator.

[Explanation of symbols]

 9 Guide 9A Pin 10 First Door 15 Gasket 19 Second Door 21 Partition 21C Front of Partition 23A Groove 26 Spring

Claims (4)

(57) [Claims] An upper first door and a lower second door provided at upper and lower sides of the opening so as to close the opening of the heat-insulating box having the opening so as to be able to be pulled out forward, and both doors. A gasket contacting the opening periphery provided on the back surface periphery of each of the first and second guides, and a pair or only one side guide portion located between the two doors and having a rod-shaped body protruding from the opening edge; A rod-like body of the guide portion, which extends in the left-right direction of the first door at a length substantially across the opening edge on the lower back surface of the door and is swingably supported by the first door. A curved portion is formed at an end corresponding to the partition member, the partition member invades into the refrigerator with the closing operation of the first door, and the rod-shaped body fits into the groove portion and rotates; An elastic member that urges the partition body in a direction that does not come into contact with the second door, When the first door is opened, the partitioning body is rotated by the engagement between the rod-shaped body and the groove, and is moved to a position where it does not come into contact with the second door due to the urging force of the elastic member. When the first door is closed, the partition is rotated by the engagement between the rod and the groove, and the front surface of the partition is substantially the same as the opening when the rod is positioned at the end of the groove. As a result, the gasket of the second door comes into contact with the front surface of the partition body.
A drawer-type door device for a heat-insulating box, wherein a seal portion for keeping the temperature is provided . 2. An article storage box facing the outside by pulling out a first door is disposed so as to engage with the back side of the first door, and the lowest part of the bottom of the storage box is the partition. It is formed at a position lower than the upper body position and at a position higher than the upper edge position of the second door, and at the same time, at the front portion of the bottom portion, the partition body is engaged with the rod-shaped body of the guide portion. 2. The draw-out type door device for an insulated box body according to claim 1, wherein a concave portion is formed that can prevent the partition member from coming into contact even when the partition member rotates. 3. The drawer-type door device for an insulated box according to claim 2, wherein the article storage box is formed at a depth slightly smaller than a vertical dimension of the first door. 4. The elastic member has a front surface portion of the partition body facing forward.
The front part of the partition body is in close contact with the gasket
The pull-out type door device for an insulated box according to any one of claims 1 to 3, wherein the door is biased in a direction .