JP2685971B2 - Door devices such as refrigerators - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention has a structure in which an opening of a heat insulating box is opened and closed by first and second doors of a double-door type, and both doors are provided. The present invention relates to a door device for a refrigerator or the like having a magnetic gasket for sealing on the inner surface thereof.

(Prior Art) As this type of door device, for example, one disclosed in Japanese Patent Laid-Open No. 2-106685 is known. In this structure, as shown in FIG. 8, first and second doors 2 and 3 of a double door type having one end sides pivotally supported are provided on the front surface of the opening 1a of the heat insulating box 1. Magnetic gaskets 2a and 3a are provided on the inner peripheral edges of both doors, respectively. A columnar partitioning body 4 extending in the up-down direction is rotatably supported on the inner surface of the first door 2 on the side opposite to the pivotal support side through a support arm 5, and the partition body 4 has upper and lower ends. Are formed with arcuate guide grooves 4a of the same shape (only one is shown in the figure). In addition, the guide groove is provided in the middle of the upper edge and the lower edge of the opening 1a in the left-right direction.
A guide pin 6 is provided which moves in and out relative to 4a (only one is shown).

Thus, in the case of the above structure, when both the first and second doors 2 and 3 are closed as shown by the solid line in FIG. 8, the guide pin 6 enters the guide groove 4a and the partition body 4 is in a horizontal state, and the respective magnet gaskets 2a, 3a of the first and second doors 2, 3 are adsorbed to the peripheral edge of the opening 1a and the front surface of the partition body 4 to hermetically seal the inside of the compartment. doing. When the first door 2 is opened from this closed state, the guide pin 6 relatively slides along the guide groove 4a, so that the partition body 4 is moved to the magnet gasket as indicated by the chain double-dashed line. The guide pins 6 are rotated so as to face rearward while being separated from the 2a and 3a, and the guide pins 6 are in a state of retracting from the guide grooves 4a. Further, when closing the first door 2 in the open state, the opening end of the guide groove 4a is fitted into the guide pin 6 and the guide pin 6 is guided along the guide groove 4a, contrary to the opening operation. As the partition body 4 slides relative to each other, the partition body 4 is pivoted so as to be oriented laterally and is in a closed state.

(Problems to be Solved by the Invention) In the above-mentioned configuration, when the second door 3 is opened from the state in which the first and second doors 2 and 3 are both closed,
The magnet gasket 3a provided on the inner surface thereof is opened against the attraction force. In contrast, the first
And the second doors 2 and 3 are both closed, the first door 2
When opening the door, since the magnet gaskets 2a and 3a of the first and second doors 2 and 3 are attracted to the front surface of the partition body 4, the magnet gasket 2a of the first door 2 side The attraction force and the attraction force of the magnet gasket 3a on the side of the second door 3 that is attracted to the partition body 4 are opposed to each other and are released. Therefore, when opening the first door 2 provided with the partition body 4, a larger opening force is required than when opening the second door 3 not provided with the partition body.
There is a drawback that the operability of the door 2 side is poor.

Therefore, an object of the present invention is to provide a door device for a refrigerator or the like that can reduce the opening force when opening the first door provided with the partition body and can improve the operability of the first door. is there.

[Structure of the Invention] (Means for Solving the Problem) A door device for a refrigerator or the like according to the present invention includes a heat-insulating box body having an opening, and one end side of each of the two sides of the heat-insulating box body. The first and second doors of the supported double door type and the inner and outer peripheral edge portions of the first and second doors respectively provided on the peripheral edge portion of the opening when the first and second doors are closed. A magnet gasket for attraction and a horizontally rotatably supported between the first position facing laterally and the second position facing rearward on the inner surface of the first door opposite to the pivot, It extends in the up-down direction so as to extend between the top and bottom of the opening, has first and second guide grooves at the upper and lower ends, and rotates to the first position when the first and second doors are closed. And a partition body whose front surface is attracted to the magnet gaskets of the first and second doors, and the partition body. It said first and second of said provided upper edge and the lower edge of the opening so as to correspond to the guide grooves, the first of said first and second in the closed state of the door
The partition body is held in the first position, and the first door is opened in association with the opening operation of the first door.
And the first and second guides that relatively slide in the second guide groove to rotate the partition body from the first position to the second position and that retreat from the first and second guide grooves. A pin provided with one of the first guide grooves in the partition body, the first guide groove being located behind the first guide pin that has entered the first guide groove when the first door is closed. It is characterized by being formed into a shape that secures a space.

(Operation) When the first door provided with the partition body is opened, the first guide pin invading the first guide groove side of the partition body in the initial opening is relatively opposed to the inside of the space. However, the second guide groove side of the partition body, in which the above space is not secured, is rotated by the second guide pin penetrating into the partition body. When the magnet gaskets of the first and second doors are attracted to the front surface of the partition body, the second guide groove side is separated from the front surface of the partition body. And the first
When the door is further opened, the first guide groove side of the partition body is also rotated by the first guide pin, and accordingly, the first magnet groove of the first and second doors is closed. The guide groove side of 1 is also separated from the front surface of the partition body.

Therefore, between the front surface of the partition body and the magnet gaskets of the first and second doors, not all of them are separated at the same time, but a part thereof is separated first, and then the remaining parts are separated. , The opening force when opening the first door can be reduced.

(Embodiment) An embodiment in which the present invention is applied to a refrigerator door device will be described below with reference to FIGS. 1 to 7.

First, referring to FIG. 3 and FIG. 4, a heat insulating box 11 constituting a refrigerator cabinet includes an outer box 12 made of steel plate, an inner box 13 made of plastic, and a heat insulating material 14 filled between them.
It is composed of First and second doors 16 and 17 of a double door type are pivotally supported on a left and right sides of an opening 15a of a refrigerating chamber 15 formed at the upper part of the heat insulating box 11 via a support shaft 18, respectively. Has been done. Magnetic gaskets 16a and 17a are provided on the inner peripheral portions of the first and second doors 16 and 17, respectively.

On the inner surface of the first door 16 on the left side of the first and second doors 16 and 17 on the anti-pivotal side (right side), a partition body 19 extending in the up-and-down direction so as to extend vertically between the openings 15a is provided. It is rotatably supported via 20. The partition body 19 includes a partition body 21 having a columnar shape, and first and second guide members 22, 23 provided at the lower end and the upper end of the partition body 21.
It is composed of Of these, the partition body 21 is the fifth
As shown in the figure, the front plate 24 is made of iron and has a U-shaped cross section.
And a plastic rear plate 25 having a U-shaped cross section and fitted to the rear part of the front plate 24, and a heat insulating material 26 disposed between the front plate 24 and the rear plate 25. A black coating 27 made of, for example, an alkyd resin is applied to the inner surface of the face plate 24, and an aluminum foil sheet 28 and a heater 29 are provided. And, in the first guide member 22,
As shown in FIG. 1, a first guide groove 22a having an opening at the right end and a wide inner portion formed in the front-rear direction is formed,
Further, as shown in FIG. 2, the second guide member 23 is formed with a second guide groove 23a having an arcuate shape which is open at the right end and has substantially the same width to the inner part.

On the other hand, the first and second guide grooves 22a of the partitioning body 19 are provided at the left and right middle portions of the lower edge and the upper edge of the opening 15a.
First and second guide pins 30, 31 sliding relative to 23a
Is provided.

 Next, the operation of the above configuration will be described.

As shown in FIG. 4, when both the first and second doors 16 and 17 are closed, the first and second guide pins 30 and 31 enter the first and second guide grooves 22a and 23a. In this state, the partition 19 is held at the first lateral position. In this state, a predetermined space 32 is formed behind the first guide pin 30 in the inner part of the first guide groove 22a (see FIG. 1), while the second guide groove 23a has a first space 32a. No such space is formed for the second guide pin 31 (see FIG. 2). Further, in this state, the magnet gaskets 16a and 17a of the first and second doors 16 and 17 have openings 15
The refrigerating chamber 15 is hermetically sealed by adsorbing to the peripheral portion of a and the front surface of the front plate 24 of the partition body 19, respectively.

From this closed state, the first door 16 provided with the partition 19 is provided.
When the opening operation is performed, as shown in FIGS. 6 (a) and 6 (b), in the initial opening, the first guide pin 22 which is inserted into the first guide groove 22a side of the partition 19 is inserted into the first guide groove 22a. Does not rotate because it moves only relatively rearward in the space 32, while the second guide groove 23a side of the partition 19 where the space is not secured enters this. The first and second doors 1 that have been attracted to the front surface of the partition body 19 are started to be rotated by the second guide pin 30 that is rotating.
The second guide groove 23a side (upper side) of both magnet gaskets 16a, 17a of 6, 17 is separated from the front surface of the partition body 19 (see FIG. 7). Then, when the first door 16 is further opened, as shown in FIG. 6 (c), the first guide groove 22a side (lower side) of the partition 19 is also rotated by the first guide pin 30. As a result, the first guide groove 2 of the two magnet gaskets 16a and 17a of the first and second doors 16 and 17 is accompanied by this.
The side 2a is also separated from the front surface of the partition body 19. Therefore, in this case, the front surface of the partition body 19 and the magnet gaskets 16a, 17a of the first and second doors 16, 17 are not all separated at the same time, but the upper part is separated first, and then the remaining parts are left. Since the parts are separated, the opening force for opening the first door 16 is reduced. As the first door 16 is opened, the partition 19 is rotated to the rearward second position as shown by the chain double-dashed line in FIG. 4 and separated from the first and second guide pins 30 and 31. Then, the first and second guide pins 30 and 31 are in a state of retreating from the first and second guide grooves 22a and 23a.

When the opened first door 16 is closed, the partition 19
The open ends of the first and second guide grooves 22a and 23a of the guide pins 3 and 31 are fitted to the first and second guide pins 30 and 31, respectively.
As 0 and 31 relatively slide along the guide grooves 22a and 23a, the partition body 19 is rotated to the first lateral position to be in the closed state shown by the solid line in FIG.

When the second door 17 is opened and closed while the first door 16 is closed, the partition body 19 is held in the first position and the magnet gasket 17a is held at the peripheral edge of the opening 15a. The partition 19 will be separated from and adsorbed to the front surface of the partition 19.

On the other hand, in the case of the above configuration, the heater 29 is attached to the inside of the front plate 24 of the partition 19 via the aluminum foil sheet 28, and the black coating 27 is applied to the inner surface of the front plate 24. The heat can be efficiently transmitted to the front plate 24, the dew condensation of the front plate 24 can be prevented, and the amount of electricity of the heater 29 can be suppressed.

[Effects of the Invention] As is apparent from the above description, according to the present invention, when the first door provided with the partition body is opened, the front surface of the partition body and both magnets of the first and second doors are opened. Between the gasket,
The first part is separated rather than all at the same time, and then the remaining parts are separated.
There is an excellent effect that the opening force when opening the door can be reduced, and the operability of the first door can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 7 show an embodiment of the present invention, FIG. 1 is an enlarged cross-sectional view of a first guide groove portion, and FIG. 2 is a second guide groove portion. FIG. 3 is an enlarged cross-sectional view of the refrigerator, FIG. 3 is a perspective view of the refrigerator with the first and second doors opened, and FIG. 4 is a cross-sectional view of the main part with the first and second doors closed. FIG. 5 is an exploded perspective view of the partition body, FIG. 6 is an explanatory view of the action when opening the first door, and FIG. 7 is a vertical cross-sectional side view of a main part when opening the first door. . And FIG. 8 is a view corresponding to FIG. 4 showing the conventional configuration. In the drawing, 11 is an insulation box, 15 is a refrigerating room, 15a is an opening, 16
Is a first door, 17 is a second door, 16a and 17a are magnet gaskets, 19 is a partition, 22a is a first guide groove, and 23a is a second
Guide groove, 30 is a first guide pin, 31 is a second guide pin, and 32 is a space.

Claims (1)

(57) [Claims] 1. A heat insulating box having an opening, first and second doors of a double door type having one end sides pivotally supported on both sides of the opening of the heat insulating box, and the first and second doors. Magnet gaskets which are respectively provided on the inner peripheral edges of the second door and which are attracted to the peripheral edges of the opening in the closed state of the first and second doors; It is rotatably supported in a horizontal direction between a first position facing sideways and a second position facing rearward, extends in the up-down direction so as to extend vertically between the openings, and has upper and lower ends. It has first and second guide grooves, and is rotated to the first position when the first and second doors are closed, and the front surface is attracted to the magnet gaskets of the first and second doors. And the opening so as to correspond to the first and second guide grooves of the partition. Is provided at the upper edge portion and the lower edge portion of the first door and holds the partition body in the first position when the first door is in the closed state and enters the first and second guide grooves. Along with the opening operation of the first door, the first and second guide grooves are relatively slid to rotate the partition body from the first position to the second position, and the first and second guide grooves are rotated. What is provided with the 1st and 2nd guide pin which withdraws from a guide groove, Comprising: One 1st guide groove of the said partition body is the said 1st guide groove in the closed state of the said 1st door. A door device for a refrigerator or the like, which is formed in a shape that secures a predetermined space behind the intruding first guide pin.