JP2804682B2 - Refrigerator door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator door device in which an opening of an insulated box body is opened and closed by a double door, and a seal member is provided on the back of the door.

[0002]

2. Description of the Related Art Conventionally, a refrigerator having a double-door type door has a gasket provided on the back of the door to keep the inside of the refrigerator airtight. In order to form a flat surface, an obstructing member that partitions the opening of the heat-insulating box into right and left is attached to the heat-insulating box. However, there is a drawback that the presence of the blocking material not only reduces the internal volume of the refrigerator, but also hinders the insertion and removal of articles from the opening. For this reason, in the prior art, for example,
No. 82, a single-layer or multi-layer tongue protruding outward is formed on the gasket located on the non-pivot side of both doors,
These tongues were brought into contact with each other to seal between the two doors, thereby eliminating the above-mentioned closing material.However, since the airtightness of the tongues has been significantly reduced due to aging, the applicant has As shown in JP-A-62-63692, a rotatable partition body was attached to the door side instead of the above-mentioned closing member.

[0003]

Problems to be Solved by the Invention
The partition body disclosed in Japanese Patent No. 692 discloses a gasket abutting surface only when the first door is closed to sufficiently exhibit airtightness, and when the first door is opened, the non-pivot end of the door. Since it pivots further inward and moves away from the opening edge of the heat insulating box together with the first door, it does not interfere with the taking in and out of food.

[0004] However, due to deformation of the inner surface of the door when the heat insulating material is foamed and mounting errors caused by displacement of the mounting positions of the double doors and the partition, the partition is fixed at a certain angle (here, about 90 °) when the first door is closed. °), the opening angle of the partition body with respect to the first door increases, and the partition body cannot form an appropriate gasket contact surface when the first door is closed, or the partition body opens. When the angle is increased, the force required to open the first door becomes unnecessarily large, and there is a problem that the opening and closing operation of the door becomes difficult.

[0005] Further, since a cylindrical projection which functions as a guide member of the partition body is provided at the opening edge of the heat insulating box,
If the partition body is already rotated to a predetermined position when closing the first door, the partition body collides with the second door or the projection of the opening edge by the closing operation of the first door. The second door or the partition may be damaged or the protrusion may be damaged, and the desired rotation of the partition may not be performed. For this reason, a replacement guide member having a projection must be attached to the opening edge. However, when the columnar projection is formed integrally with the opening edge, the replacement guide member is attached. However, there is a problem that the mounting position is difficult to understand at a desired position.

Accordingly, the present invention provides an attaching portion for attaching a guide member to an opening edge formed with a protrusion so that positioning and attaching work of a guide member having a projection can be easily performed, while a partition member is provided. A stopper that regulates the rotation angle with respect to the first door is provided so that a mounting error of the partition body can be absorbed, and at the time of closing the first door, the partition body reliably forms a contact surface of the seal member, and It is an object of the present invention to provide a refrigerator door device capable of reducing the opening / closing force of a first door.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided an insulated box-shaped first door and a second door which are rotatably supported on both sides of an opening of a heat insulating box having a front opening so as to close the opening. Door and
A projection formed on the opening edge of the heat insulating box located on the non-pivot side of both doors, and extending in the direction of the rotation axis of the first door on the back surface of the non-pivot side portion of the first door. To be rotatably supported,
In a refrigerator provided with a partition which is rotated from an initial state along the inner surface of the first door by the projection by the closing operation of the first door and a front surface of which is substantially flush with the opening edge, An object of the present invention is to provide a refrigerator door device provided with a mounting portion for mounting a guide member having a projection on an opening edge of the heat-insulating box body in which the portion is formed.

The present invention also provides a hinge member for rotatably attaching a partition to the back surface of the first door, a shaft portion of the hinge member mounted on the partition, and a bearing for the partition for receiving the shaft. The present invention provides a door device for a refrigerator, comprising: a stopper provided between the first door and the second door to define a rotation range of the partition body with respect to the first door.

[0009]

According to the refrigerator door apparatus of the first aspect, the mounting portion provided on the opening edge acts not only as a mounting member but also as a positioning member for the front and rear portions of the guide member. The positioning of the member in the front-rear position is easy, and the guide member can be fixed to the mounting portion in a state where it is securely positioned, so that the work of replacing the guide member becomes easy. In particular, the shielding portion shown in the embodiment also has a function as a contact member for a rag hiding member and a sealing member for making portions other than the protrusion of the guide member invisible.

According to the door device of the second aspect, the stopper provided between the partition and the hinge member acts to regulate the rotation angle of the partition with respect to the first door, so that the first door is closed. In this case, the partition member can reliably form the contact surface of the seal member, and the force required to open the first door during the opening operation can be reduced as compared with the related art.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a refrigerator, which includes a freezer compartment F and a refrigerator compartment R in order from the top.
And a vegetable room and a bottle room, and the first and second doors 2F and 2R and the second and third doors 3F and 3R are open and closed in the freezing and chilling rooms.
Drawer doors 4V and 4 in vegetable room V and bottle room B.
B are arranged respectively. The refrigerator 1 includes the six doors and a heat-insulating box 7. The heat-insulating box 7 includes an outer box 5 made of a steel plate, an inner box 6 formed of a synthetic resin, 6 and a foamed heat insulating material (not shown) filled therebetween.
An upper partition member 9 and a lower partition member 10 are arranged so as to partition into stages. The space above the upper partition member 9 is a freezing compartment F, and the space between the upper partition member 9 and the lower partition member is a refrigerator compartment R.
The right side is the vegetable room V and the left side is the bottle room B when facing the space below the lower partition member.

The first doors 2F, 2R and the second door 3 of the double door type
F and 3R are rotatably supported by hinges (not shown) at the opening edges of the front opening 8 so as to close the front openings of the freezer compartment F and the refrigerator compartment R, respectively. Since the doors of the freezer compartment and the doors of the refrigerator compartment differ only in size (particularly height), the doors 2R and 3R of the refrigerator compartment will be described below as an example.

The first door 2R and the second door 3R are connected to the frame 11
A, 11B, outer frames 13A, 13B formed of door outer plates 12A, 12B engaged with the outer frames 13A, 13B, and outer flanges 15 on the inner edges 14 of the frame members 11A, 11B (only the first door is shown). The door inner plate 16 (only the first door is shown) that is in contact with the outer frames 13A, 13B and the door inner plate 16
And a heat insulating material I filled with foam. The door inner plate 16 is formed with a pair of left and right vertical walls 17 (only the non-pivot side is shown) in which the heat insulating material I is filled, and a groove 18 at the end of the frame members 11A and 11B is formed. A gasket G as a sealing member with a built-in magnet is attached, and its fins F are in close contact with the vertical walls 19 on the non-pivot side. The gasket G is placed on the heat insulating box 7 when the doors 2R and 3R are closed.
Magnetized on the front edge of the outer box 5 located at the opening 8 of the refrigerator compartment R
Seal inside.

Outside the vertical wall 17 inside the gasket G located on the non-pivot side of the back surface of the first door 2R, a partition member 20 having a substantially rectangular cross section is rotated by two upper and lower hinge members 31. Can be mounted freely.

The partitioning body 20 extends vertically up and down over a length substantially equal to the vertical length of the opening edge of the refrigerator compartment R, and has a main body 21 made of synthetic resin and having a substantially U-shaped cross section. 21
A cap 22 attached to the upper and lower ends of the main body 21
And a metal contact plate 23 attached to the cap 22 to form a space between itself and the main body, and a heat insulating material 2 such as styrene foam to be stored in the space formed by the contact plate 23 and the main body 21
4

The main body 21 and the cap 22 are provided with a bearing 25 for supporting the shaft 33 of the hinge member 31.

A toggle spring 26 is provided between the main body 21 and one (here, upper) hinge member 31A as a rotation assisting device for urging the partition 20 in both the opening direction and the closing direction. ing. That is, the toggle spring 26
Has one end fixed to a locking piece 35 formed on the hinge member 31 and the other end fixed to a locking piece 37 formed on the main body 21, and the elastic force of the first piece as shown by the solid line in FIG. An initial state (hereinafter, referred to as an open state) of the vertical wall 17 of the door 2R along the door inner plate 16 and a rotation from the initial state (i.e., the open state) about the shaft 33 as a fulcrum are shown by a two-dot chain line in FIG. As described above, the contact plate 23 is substantially flush with the opening edge 8 and contacts the gasket G located on the non-pivot side of each of the first door 2R and the second door 3R (hereinafter referred to as a closed state). The partitioning body 20 is urged in both the opening and closing directions so as to determine the position in the state.

Numeral 27 is provided on the back surface of the main body 21, and when the partition 20 is turned so as to be substantially parallel to the vertical wall 17 of the first door 2R, the partition vigorously contacts the vertical wall 17. It is a cushioning material such as rubber for preventing collision. The back surface of the main body is flush with the opening edge when the abutment plate 23 of the partition body 20 is rotated so as to form the abutment surface of the gasket G, and is located on the front side. Therefore, it refers to the back side surface of the wall of the main body 21 facing the contact plate 23.

The upper cap 22A is provided with a projection 41 so as to change the direction of the partitioning body 20 when the projection 41 described later enters and when the projection 41 starts to retreat.
And a curved groove 28 is formed, and a packing 29 for closing a gap between a shielding portion 44 and the cap 22, which will be described later, is fixed to the upper and lower two caps 22. The cap 22 is fixed to the main body 21 and the contact plate 23 by screws 30 as a fixing member.

The hinge member 31 includes a fixed portion 32 attached to the vertical wall 17, a shaft portion 33 supported by the bearing portion 25 of the partition 20, and an arm portion 34 connecting the shaft portion 33 and the fixed portion 32. In this embodiment, it is formed of a synthetic resin.

The partition 20 is placed on the upper wall of the heat-insulating box 7 and on the lower surface of the upper partition member 9 on the non-pivot side of the double door, based on the opening and closing operation of the first door. In order to automatically change the direction, as shown in FIGS. 6 and 7, a cylindrical projection 41 as a guide member integrally formed with a resin inner box, or as shown in FIGS. 8 and 9 Guide members 43 each having a columnar projection 42 and separately attached (the same for replacement) are provided. still,
For the purpose of increasing the strength of the projection 41, it is preferable to insert a metal piece into the inner box portion corresponding to the projection, or to increase the area of the root of the projection.

At the opening edge of the heat-insulating box 7 formed with the protrusion 41, a mounting portion 48 for mounting a replacement guide member formed with the protrusion 42 is provided. This mounting portion 48
A shielding portion 44 provided on the front side of the projection 41 for concealing a gap between the upper and lower end portions of the partition body 20 and the opening edge; and a rear position of the replacement guide member 43 provided on the rear side of the projection 41. 45, shielding part 44 and positioning part 4
5 and a mounting hole 46 for mounting a screw 47 for mounting the separately attached (and replacement) guide member 43. However, an engaging piece such as a convex portion or a concave portion which can be detachably engaged with the guide member 43 instead of the mounting hole 46 may be used. A more preferred embodiment is one formed integrally.

Here, the movement of the partition 20 in accordance with the opening / closing operation of the first door 2R will be described. First, when the first door 2R is open, the partition 20 is biased by the toggle spring 26 as shown in FIG. As described above, the position is determined in a state substantially along the vertical wall 17 of the door inner plate 16 (open state).

Next, when the first door 2R is closed, the partition 2
It contacts the protrusion 41 at the entrance of the zero groove 28. When the first door is further closed, the contact portion between the protrusion 41 and the groove 28 moves the front surface of the curved groove 28 sequentially along this surface toward the back of the groove 28, and this protrusion Part 41
As a result, the partitioning body 20 gradually turns counterclockwise while resisting the biasing force of the toggle spring 26. And
Since the elastic force of the toggle spring 26 acts in a counterclockwise direction at a certain point, the protrusion 41 enters into the depth of the groove 28, and when the closing operation of the first door 2R ends, the protrusion 41 becomes the groove. In this state, the partitioning body 20 has its abutment plate 23 substantially flush with the opening edge 8 as shown by a two-dot chain line in FIG. 11 and is located on the non-pivot side of both doors 2R and 3R. The magnetized surface of the gasket G located is constituted and stably maintained, whereby the opening of the refrigerator compartment R is sealed.

Conversely, when the first door 2R is opened, the projection 41 comes into contact with the rear surface of the groove 28 as shown by the solid line in FIG. The partitioning body 20 gradually changes its direction in the clockwise direction because it gradually moves toward the entrance side of. When a certain point is exceeded, the clockwise elastic force of the toggle spring 26 acts, and as shown by the two-dot chain line in FIG.
Returns to the initial state (that is, the open state).

The above operation can be performed regardless of whether the second door 3R is open or closed.

Further, the shielding portion 44 provided at the opening edge acts as a positioning member at the front of the guide member 43 for attaching separately, and the positioning portion 45 acts as a positioning member at the rear of the guide member 43. Positioning of the guide member 43 in the front-rear position is easy, and
Is easily positioned in a state substantially parallel to the shielding portion 44. For this reason, since the guide member 43 may be fixed to the mounting hole 46 in a state where the guide member 43 is securely positioned, the work of attaching and replacing the guide member 43 becomes easy. In particular, the shielding portion 44 also functions as a rag-hiding member that makes portions other than the protrusion 42 of the guide member 43 invisible and a contact member for the gasket G, and the design of the opening 8 of the refrigerator 1 can be improved.

FIGS. 10 to 12 show another embodiment of the projecting portion. FIG. 10 shows an axial center K of the shaft portion 33 of the hinge member 31 shown in FIG. 5 and an opening operation of the first door 2R. The protrusion 49 is provided for increasing the distance between the protrusion 41 and the first contact point L between the groove 28 of the partition 20 and the rotational moment of the partition 20 during the first door opening operation. It is a thing. That is, the thickness of the protrusion 49 is made smaller than the distance M between the front surface and the rear surface of the groove 28, and the width of the protrusion 49 is about twice as large as the distance M. It is set.

According to the projection 49, compared with the columnar projection 41 shown in FIG. 5, which is located at the innermost part of the groove 28 of the partition 20 when the partition 20 is closed. Since the distance between the axis K and the first contact point L is twice or more, the rotation moment of the partition body 20 at the time of opening the first door is twice or more, and the force for opening the first door is small. Good so the door is easy to open. In addition, Japanese Patent Laid-Open No. 3-10
Compared with the curved protrusion as shown in Japanese Patent No. 5189, the contact between the protrusion 49 and the groove 28 is a point contact, so that the frictional resistance in proportion to the contact area is reduced. The door becomes easier to open. Furthermore, since the area of the root portion can be made larger than that of the protrusion 41, the strength of the protrusion 49 itself can be increased.

FIG. 13 shows the first door 2R of the partition 20.
This shows an example in which a stopper 51 for defining a rotation angle (particularly, a rotation limit position in a closed state) with respect to is provided on the upper cap 22A of the partition body 20. still,
The stopper 51 may be provided on the lower cap 22, the partition body 21, and the hinge member 31. Between the shaft 33 of the hinge 31 and the bearing 25 of the partition 20 receiving the shaft 33. What is necessary is just to be provided.

According to the stopper 51, the mounting error of the partition 20 caused by the deformation of the door inner plate 16 at the time of foaming of the heat insulating material and the displacement of the mounting position of the double doors 2R, 2F and the hinge member 31 is absorbed. Moreover, since the partition body 20 does not rotate more than a certain angle (here, about 90 °) when the first door 2R is closed, the partition body 2 does not rotate when the first door is closed.
0, the contact surface of the gasket G is surely formed.
The opening and closing force of the door 2R can be reduced.

[0032]

As described above, according to the refrigerator door apparatus of the first aspect, the mounting portion provided at the opening edge of the heat-insulating box body having the projection is provided not only as a mounting member for the guide member but also as a guide member. Since it acts as the front and rear portions of the member and also as left and right positioning members, it is easy to position the front and rear positions of the replacement guide member, and the guide member can be fixed to the mounting portion in a state where it is securely positioned, and The replacement work of the members becomes easy. In particular, the mounting portion also has a function as a contact member for the rag concealing member and the sealing member for making portions other than the protrusion of the guide member invisible.

According to the door device of the second aspect, the stopper provided between the partition member and the hinge member is the first member of the partition member.
Acts to regulate the rotation angle with respect to the door, so that when the first door is closed, the partitioning member can reliably form the contact surface of the seal member, and the door can be opened when the first door is opened. Opening force can be reduced as compared with the conventional case.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a first door and a heat insulating box showing a relationship between a partition body and a protrusion.

FIG. 2 is a front view of the refrigerator.

FIG. 3 is a perspective view of a main part of the heat insulating box.

FIG. 4 is an exploded perspective view of a partition.

FIG. 5 is an enlarged cross-sectional view showing the relationship between the partition, the projection, and the seal member when the double door is closed.

FIG. 6 is a vertical cross-sectional view of the upper partition member integrally formed with the protrusion as viewed from the side.

FIG. 7 is a perspective view of a main part of the upper partition member of FIG. 6, as viewed from below.

FIG. 8 is a vertical sectional view of an upper partition member to which a guide member having a projection is separately attached.

FIG. 9 is a perspective view of a main part of FIG.

FIG. 10 is an enlarged cross-sectional view corresponding to FIG. 5, showing another embodiment of the protrusion.

FIG. 11 is an enlarged cross-sectional view showing a state of the partition when the first door is closed.

FIG. 12 is an enlarged cross-sectional view showing a state of the partition when the first door is opened.

FIG. 13 is an exploded perspective view showing a relationship between a stopper and a hinge member.

FIG. 14 is a perspective view of an upper part of a partition body.

[Explanation of symbols]

 2F, 2R First door 3F, 3R Second door 20 Partition body 25 Bearing part 31 Hinge member 33 Shaft part 41 Projection part 42 Projection 43 Guide member 44 Shielding part 45 Positioning part 46 Mounting hole 48 Mounting part 51 Stopper

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 4-61288 (JP, U) JP-A 3-77184 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F25D 23/02 305

Claims (2)

(57) [Claims] An insulated box-shaped first and second doors rotatably supported on both sides of the heat-insulating box having a front opening so as to close the opening. A protrusion formed on an opening edge of the heat-insulating box located on a pivot side;
The first door is rotatably supported on the back surface of the non-pivot side portion of the door by extending in the rotation axis direction of the first door. In the refrigerator provided with a partition body which is rotated from the initial state along with the front surface and is substantially flush with the opening edge, the opening edge of the heat-insulating box body having the projection has a projection. A refrigerator door device provided with a mounting portion for mounting a guide member. 2. A double-door type first and second doors rotatably supported on both sides of the heat-insulating box having a front opening so as to close the opening. A guide member provided at an opening edge of the heat-insulating box located on a pivot side; and a back surface of a non-pivot side portion of the first door, which extends in the rotation axis direction of the first door and is rotatable. And a partition that is rotated by the guide member from an initial state along the inner surface of the first door by the closing operation of the first door, and the front surface of which is substantially flush with the opening edge. , A hinge member for rotatably attaching the partition to the back surface of the first door, and a hinge between the hinge attached to the partition and the bearing of the partition receiving the shaft. A stopper provided to define a rotation range of the partition body with respect to the first door. And refrigerator door device.