JPH04136679A - Door device for refrigerator or the like - Google Patents

Abstract

PURPOSE:To reduce a force to open a first door upon opening the same and improve the operability of the door by a method wherein a first guide groove, provided at one side of a partitioning body, is formed so as to have a configuration, in which a predetermined space is secured behind a first guide pin entered into the first guide groove under a condition that the first door is closed. CONSTITUTION:When a first door 16 is opened, a second guide groove unit 23a, in which the space of a partitioning body 19 is not secured, is pivoted by a second guide pin 31 and the second guide groove unit 23a (upper side) between both magnet gasket 16a, 17a of the doors 16, 17, which are attracted to the fore surface of the partitioning body 19, is separated from the fore surface of the partitioning body 19. When the first door 16 is opened further, a first guide groove unit 22a is also separated from the fore surface of the partitioning body 19. Accordingly, both magnet gaskets 16a, 17a of the doors 16, 17 are separated from the fore surface of the partitioning body 19 or the upper parts between the partitioning body 19 and the doors 16, 17 are separated at first and, thereafter, remaining parts are separated whereby a force to open the door 16 upon opening the same is reduced.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention has a structure in which the opening of a heat insulating box is opened and closed by first and second double doors, and both of these doors This invention relates to a door device for a refrigerator, etc., which is equipped with a magnetic gasket for sealing on the inner surface of the door.

(Prior art) As this type of door device, for example, Japanese Patent Application Laid-Open No. 2-106685
The one shown in the publication is known.

In this case, as shown in FIG. 8, first and second double doors 2 and 3 are provided on the front surface of the opening 1a in the heat insulating box 1, with one end of each pivoted. Magnetic gaskets 2a and 3a6' are provided on the inner peripheral edges of both doors, respectively. A columnar partition 4 extending in the vertical direction is rotatably supported on the inner surface of the first door 2 on the side opposite to the pivot via a support arm 5.
Guide grooves 4a having the same arc shape are formed at both upper and lower ends of the partition 4 (only one is shown in the figure). Further, a guide pin 6 that moves in and out relatively to the guide groove 48 is provided at the middle portion in the left-right direction between the upper edge and the lower edge of the opening 1a (only one of these is shown). ).

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 43 and the partition body 4 is in a sideways state, and the magnet gaskets 2g and 3a of the first and second doors 2 and 3 are adsorbed to the periphery of the opening 1a and the front of the partition 4, making the inside of the refrigerator airtight. It is sealed.

When the first door 2 is opened from this closed state, the guide pin 6 slides relatively along the guide groove 4a, and the partition 4 is moved to the magnetic gasket as shown by the two-dot chain line. The guide pin 6 is rotated backward while separating from the guide pins 2a and 3a, and the guide pin 6 is in a state where it has left the guide a4a. In addition, when closing the first door 2 in the open state, the guide groove 4a is
As the open end of the partition body 4 is fitted into the guide pin 6 and the guide pin 6 relatively slides along the guide a4a, the partition body 4 is rotated sideways to be in the closed state.

(Problem to be Solved by the Invention) In the above-described configuration, when the second door 3 is opened from a state in which both the first and second doors 23 are closed, a magnetic gasket provided on the inner surface of the second door 3 is used. It is opened against the adsorption force of 3a. On the other hand, the first
When the first door 2 is opened from a state in which both the second door 2 and the second door 2 and 3 are closed, a magnetic gasket 2a of both the first door 2 and the second door 2 and 3 is placed on the front surface of the partition 4. 3a is adsorbed, so it is opened against the adsorption force of the magnetic gasket 2a on the side of the door 2 and the adsorption force of the magnetic gasket 3a on the side of the second door 3 adsorbed to the partition body 4. It turns out. Therefore, when opening the first door 2 provided with the partition 4, a greater opening force is required than when opening the second door 3, which is not provided with the partition. The disadvantage is that the operability on the second side is poor.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a door device for a refrigerator, etc., which can reduce the opening force when opening a first door provided with a partition and improve the operability of the first door. be.

[Configuration of the Invention (Means for Solving the Problems) A door device for a refrigerator, etc. of the present invention includes a heat insulating box having an opening, and one end side of the heat insulating box on both sides of the opening. Support l: provided at the inner periphery of the first and second double doors and the inner surfaces of the first and second doors, respectively, and the periphery of the opening when the first and second doors are closed. and a magnetic gasket that is attracted to the first door, and is rotatably supported in the horizontal direction between a first position facing laterally and a second position facing rearward on the inner surface of the opposite side of the first door, The guide groove extends in the vertical direction so as to span between the upper and lower ends of the opening, and has first and second guide grooves at the upper and lower ends, and is in the first position when the first and second doors are closed. A partition body that is rotated so that its front surface is attracted to the magnetic gaskets of the first and second doors, and an upper edge of the opening so as to correspond to the first and second guide grooves of the partition body. and a lower edge of the partition, which enters into the first and second guide grooves when the first door is closed to hold the partition at the first position; As the door opens, the first and second guide grooves are slid relative to each other to move the partition into the first
The first and second guide grooves are rotated from the position to the second position and the first and second guide grooves are moved out of the first and second guide grooves. The present invention is characterized in that the guide groove is formed in a shape that secures a predetermined space behind the first guide pin that enters the first guide groove when the first door is closed.

(Function) When opening the first door provided with a partition, in the initial stage of opening, the first guide pin that has entered the first guide groove side of the partition will move inside the space relative to each other. However, the second guide groove side of the partition where the above-mentioned space is not secured is rotated by the second guide pin inserted therein. As a result, the first part, which had been adsorbed to the front of the partition,
Of both magnetic gaskets of the second door, the second guide groove side is separated from the front surface of the partition.

Then, when the first door is further opened, the first door of the partition
The guide groove side of the partition body is also rotated by the first guide pin, and as a result, the first guide groove side of both the magnetic gaskets of the first and second doors is also moved away from the front surface of the partition body. become.

Therefore, the front surface of the partition and both the magnetic gaskets of the first and second doors are not all separated at the same time, but first a portion is separated, and then the remaining portion is separated. , the opening force when opening the first door can be reduced.

(Example) Hereinafter, an example in which the present invention is applied to a refrigerator door device will be described with reference to FIGS. 1 to 7.

First, in FIGS. 3 and 4, a heat insulating box body 11 constituting a refrigerator cabinet consists of an outer box 12 made of steel plate, an inner box 13 made of plastic, and a heat insulating material 14 filled between these. It is configured. On both sides of the opening 15a of the refrigerating compartment 15 formed in the upper part of the heat insulating box 1, there are first and second doors 16 and 17 of the double-folding type, each with a support shaft 1.
It is rotatably supported via 8. Magnetic gaskets 16a, 17a are provided on the inner peripheral edges of the first and second doors 16, 1.7, respectively.

The first door 16 on the left among the first and second doors 16.17
On the inner surface of the opposite side (right side) of the arm 2, there is a partition 19 extending in the vertical direction so as to span between the upper and lower sides of the opening 15H.
It is rotatably supported in the horizontal direction via 0. The partition 19 is composed of a columnar partition main body 21 and first and second guide members 22 and 23 provided at the lower and upper ends of the partition main body 21. As shown in FIG. 5, the partition main body 21 includes a front plate 24 made of iron plate having a U-shaped cross section, and a front plate 2 having a U-shaped cross section.
A plastic rear plate 25 fitted to the rear part of 4;
It is composed of a heat insulating material 26 disposed between the front plate 24 and the rear plate 25, and the inner surface of the front plate 24 is coated with a black coating 27 made of, for example, alkyd resin, and is coated with an aluminum foil sheet. 28 and a heater 29 are provided.

As shown in FIG. 1, the first guide member 22 is formed with a first guide groove 22a that is open at the right end and wide at the back in the front-rear direction.
As shown in FIG. 2, the guide member 23 is formed with a second arc-shaped guide groove 23B that is open at the right end and has a width equal to that of the groove.

On the other hand, the first and second guide grooves 2 of the partition body 19 are located in the middle part in the left-right direction between the lower edge and the upper edge of the opening 15a.
First and second guide pins 30.31 are provided which slide relative to 2a, 23a.

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

When the first and second doors 16.17 are both closed as shown in FIG. 4, the first and second guide pins 30.
31 has entered the first and second guide grooves 22a and 23a, and the partition body 19 is held in the horizontal first position.

In this state, a predetermined space 32 is formed in the inner part of the first guide groove 22a behind the first guide pin 30 (see FIG. 1), while a No such space is formed for the second guide pin 31 (see FIG. 2). Also, in this state, the first
and the magnetic gasket 16a of the second door 16.17.
17a is adsorbed to the peripheral edge of the opening 15a and the front surface of the front plate 24 of the partition body 19, respectively, to airtightly seal the refrigerator compartment 15.

From this closed state, the first door 1 provided with the partition 19
6 is opened, in the initial stage of opening, as shown in Fig. 6 (
As shown in a) and (b), the first guide pin 22a side of the partition body 9 has a first guide pin 30 intruding therein.
is not rotated because it only moves relatively backward within the space 32, whereas the second guide groove 23a side of the partition 19 where the space is not secured enters into this. As a result, both the magnetic gaskets 16a of the first and second doors 16 and 17, which were attracted to the front surface of the partition body 19, are rotated by the second guide pin 30.
, 17a, the second guide tj 23 a side (upper side)
is spaced a distance M from the front side of the partition unit 9 (see FIG. 7). Then, when the first door 16 is further opened, FIG. 6(c)
As shown in , the first guide groove 22a side (lower side) of the partition body 19 is also rotated by the first guide pin 30 1 Accordingly, both the first and second magnets 16 and 17 The first guide groove 2 among the gaskets 16a and 17a
The side 2a also becomes separated from the front surface of the partition body 19. Therefore, in this case, the front surface of the partition body 19 and the first and second doors 1
6. The two magnetic gaskets 16a and 17g in 17 are not all separated at the same time, but the upper part is separated first, and then the remaining part is separated, so open the first door 16. The opening force when doing so is small.

As the first door 16 is opened, the partition 19 is rotated to the rearward second position as shown by the two-dot chain line in FIG. 4, and the first and second guide pins 30 and 31 away from,
The first and second guide pins 3031 are in a state of being withdrawn from the first and second guide grooves 22a and 23a.

When the first door 16 in the open state is closed, the partition body 1
The open ends of the first and second guide grooves 22a and 23a at 9 are fitted into the first and second guide pins 30.31, so that each guide pin 30.31 is connected to each guide groove 22a, 23a.
4, the partition 19 is rotated to the horizontal first position and enters the closed state shown by the solid line in FIG. 4.

Note that when opening and closing the second door 17 while the first door 16 is closed, the partition body 19 remains in the first position, and the magnetic gasket 17a closes to the periphery of the opening 15a and It is separated from and adsorbed to the front surface of the partition body 19.

On the other hand, in the case of the above structure, a heater 29 is placed inside the front plate 24 of the partition body 19 via an aluminum foil sheet 28.
At the same time, since the inner surface of the front plate 24 is coated with black paint 27, the heat of the heater 29 can be efficiently transferred to the front plate 24, preventing dew on the front plate 24, and reducing the amount of electricity of the heater 29. It becomes possible to suppress the

[Effects of the Invention] As is clear from the above description, according to the present invention, when opening the first door provided with the partition, the magnets on both the front surface of the partition and the first and second doors The gap between the gasket and the gasket is not separated all at the same time, but a portion is separated first,
Since the remaining portions are then separated, the opening force required to open the first door can be reduced, and the operability of the first door can be improved, which is an excellent effect.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention, in which FIG. 1 is an enlarged cross-sectional view of the first guide groove portion, FIG. 2 is an enlarged cross-sectional view of the second guide groove portion, and FIG. Figure 3 is a perspective view of the refrigerator with the first and second doors open, Figure 4 is a cross-sectional view of the main parts with the first and second doors closed, and Figure 5 is the main body of the partition. FIG. 6 is an explanatory view of the operation when opening the first door, and FIG. 7 is a longitudinal sectional side view of the main parts when opening the first door. FIG. 8 is a diagram corresponding to FIG. 4 showing a conventional configuration. In the drawing, 11 is a heat insulating box, 15 is a refrigerator compartment, 15a is an opening, 16 is a first door, 17 is a second door, 16a, 17a
is a magnetic gasket, ]9 is a partition, and 22a is a first
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)

[Claims] 1. A heat insulating box body having an opening; first and second doors of double door type, each of which has one end pivoted on both sides of the opening of the heat insulating box body; a magnetic gasket provided on the inner periphery of the first door and adhering to the periphery of the opening when the first and second doors are closed; The opening is supported so as to be rotatable in the horizontal direction between a first position and a second position facing rearward, and extends in the vertical direction so as to span between the upper and lower sides of the opening, and has a first and a second position at the upper and lower ends thereof. a partition body which has a guide groove and is rotated to the first position when the first and second doors are closed so that its front surface is attracted to the magnetic gaskets of the first and second doors; are provided at the upper and lower edges of the opening so as to correspond to the first and second guide grooves of the partition, and when the first door is closed, the first and second guide grooves are provided. The partition body is held in the first position while entering the groove, and the partition body is slid relatively through the first and second guide grooves as the first door is opened. and first and second guide pins that rotate from a first position to a second position and exit from the first and second guide grooves, the first and second guide pins being rotated from the first position to the second position and exiting from the first and second guide grooves, The guide groove is formed in a shape that secures a predetermined space behind the first guide pin that enters the first guide groove when the first door is closed. door device.