JPH08151850A - Door device for furniture - Google Patents

Abstract

PURPOSE: To prevent a door from being applied with a strong shock when the door of a cabinet is closed. CONSTITUTION: The first magnet 12 is provided on the fixed piece 8 of a hinge 6, and the second magnet 13 to be overlapped on the first magnet 12 when a door 5 is opened nearly by half is provided on the moving piece 9 of the hinge 6. Polarities of the opposite faces of both magnets 12, 13 are set to the same polarities, and a brake is applied to the closing rotation of the door 5 by the repulsion of both magnets 12, 13. The opening speed is also suppressed by both magnets 12, 13 when the door 5 is opened and rotated from the closed state, thus the door 5 can be prevented from being largely opened by the reaction when it is closed. The third magnet 14 attracting the second magnet 13 together when the door 5 is kept closed is provided on the fixing piece 8 of the hinge 6, and the closed state of the door 5 is surely maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for furniture such as a cabinet.

[0002]

2. Description of the Related Art Cabinet doors generally have a structure in which one side edge thereof is hinged to a cabinet body by a hinge so as to be horizontally rotatable. As is well known. Also,
In the case of a cabinet, as a means for holding the door in a closed state, a magnet for magnetically attracting each other is provided at the free end portion of the door and the furniture body, or a latch claw is provided. For example, a latch device is provided.

However, when opening and closing a door in a cabinet or the like, the door is not always opened and closed with the hand held, and the free end of the door may be opened and closed by the hand. A large external force may act on the door when opening and closing. In particular, when closing the door, it is often the case that the free end of the door is hit with a fingertip to make it fly away, so that the door is swiftly rotated and a strong shock is applied, damaging the door or shortening its life. There was a problem that there are things.

The present invention aims to solve this problem with a very simple structure.

[0005]

In order to achieve this object, a door device according to the invention of claim 1 is that "a door is rotatably attached to a furniture main body through a pivoting member such as a hinge or a pin. In furniture consisting of
A magnet, and a second magnet for the movable part such as the movable piece of the hinge,
The first magnet and the second magnet are provided so as to cross each other in a close contact or a close state during opening and closing of the door.
When the magnet and the second magnet cross each other, the magnetic poles on the surfaces facing each other are set to the same magnetic pole. "

The door device according to a second aspect of the present invention is the door device according to the first aspect, wherein "either one of the fixed portion and the movable portion has the other member with the door closed. The third magnet is provided so as to be attracted to the magnet. "

[0007]

According to the structure of the present invention, when the first magnet and the second magnet cross each other due to the opening and closing movement of the door, the first magnet and the second magnet repel each other. Magnetic force will act. In other words, the repulsive force between the first magnet and the second magnet causes a braking action that suppresses the opening / closing movement of the door. As a result, even if the door is bounced off and strongly opened / closed, Also, it is possible to prevent a strong impact from acting on the furniture body.

Therefore, according to the present invention, it is possible to prevent the door from being damaged or having its life shortened by an impact when the door is opened and closed by a very simple structure in which only a magnet is provided. Further, after the first magnet and the second magnet have crossed each other when the door is opened, the door is biased in the opening direction by the repulsive force of both magnets, so that the door is held in a wide open state, After the two magnets cross each other when closing the door, the repulsive force of both magnets urges the door to rotate in the closing direction, so the door will not open greatly due to the recoil. Therefore, it also has the effect of further improving the usability of the furniture.

On the other hand, according to the second aspect of the present invention, the third magnet and the magnet facing the third magnet attract each other when the door is closed, so that the door is securely held in the closed state. That is, the door can be held in a closed state by using a magnet for preventing or suppressing the impact when the door is opened and closed. Therefore, according to the configuration of claim 2,
Not only does it have the effect of, but the door can be securely held in the closed state with a simple structure without the complicated structure of the conventional latch device, and the door can be opened by the recoil when closed. It has a peculiar effect that can be surely prevented.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 6 show a first embodiment applied to a cabinet. As shown in FIGS. 1 (a) and 3 (a), the cabinet is provided with a main body 1 having left and right side plates 2, a top plate 3, a base plate 4, and a back plate (not shown), which has an entire opening. A pair of left and right doors 5 are pivotally attached to a front end portion of the left and right side plates 2 by a pair of upper and lower hinges 6 so as to be horizontally rotatable. The side plate 2 of the main body 1 is arranged so as to be slightly deeper than the top plate 3 and the base plate 4.

As shown in FIGS. 1 (a) and 3, the top plate 3
A stopper 7 for the door 5 is fixed to the lower surfaces of the left and right intermediate portions of the. The hinge 6 is made of a non-magnetic material such as synthetic resin, and comprises a fixed piece 8 located below and a movable piece 9 located above. The shaft 8a of the fixed piece 8 fixed to the side plate 2 of the main body 1 with a screw or the like has the pin hole 10 extending vertically, while the shaft 9a of the movable piece 9 fixed to the door 5 is formed.
From the above, a pin 11 fitted in the pin hole 10 is provided so as to project downward.

The fixed piece 8 of the hinge 6 serves as a fixed portion, the movable piece 9 of the hinge 6 serves as an example of a movable portion, and the shaft portion 8a of the fixed piece 8 of the hinge 6 serves as the shaft of the movable piece 9. The first magnet 12 is embedded in an appropriate portion of the surface that comes into close contact with the portion 9a. On the other hand, the second magnet 13 is embedded in the surface of the shaft portion 9a of the movable piece 9 that is in sliding contact with the shaft portion 8a of the fixed piece 8.

In this case, the second magnet 13 should be arranged at a position where it overlaps with the first magnet 12 when the door 5 is partially opened (for example, when it is opened to about 45 degrees in plan view). Thus, the first magnet 12 and the second magnet 13 are set to pass each other while they are opening and closing the door 5 in a state where they are in close contact with or close to each other. In addition, the first magnet 12 and the second magnet 13
For example, as shown in FIG. 5, the same magnetic poles are set so that the magnetic poles on the surfaces facing each other when the door 5 is rotated are both N poles.

Further, the shaft portion 8a of the fixed piece 8 of the hinge 6 is provided.
A surface of the third magnet 14 that is in sliding contact with the movable piece 9 overlaps the second magnet 13 in a plan view with the door 5 closed.
Is buried. The second magnet 1 of the third magnets 14
The magnetic pole on the surface facing 3 is set to a magnetic pole (S pole in the drawing) that attracts the second magnet 13. In the above configuration, when the door 5 is opened and closed, the first magnet 12 and the second magnet 13 repel each other. Therefore, even if the free end of the door 5 is bounced by hand and opened and closed vigorously, During the opening and closing, the rotation speed (more accurately, angular speed) of the first magnet 1
Because the repulsive force between the second magnet 13 and the second magnet 13 causes it to go down,
It is possible to prevent or suppress a large impact on the door 5 and the main body 1 when opening and closing the door 5.

In particular, when the open door 5 is closed, it is often closed by forcing it strongly with the finger on the free end of the door 5, and therefore a large impact is often applied when the door 5 is closed. However, as shown by the arrow A in FIG.
If the second magnet 13 approaches the first magnet 12 in the middle of closing the door 5, both magnets 12 and 13 repel each other and the rotation speed of the door 5 decreases, so that the door 5 closes vigorously and an impact is applied. It can be prevented or suppressed.

When the door 5 is closed, the second magnet 1
When 3 passes through the first magnet 12, the door 5 is biased in the closing direction by the repulsive force of both magnets 12 and 13, as indicated by the arrow B in FIG. 6C. In this way, in addition to the repulsive force of the first magnet 12 and the second magnet 13 urging the door 5 in the closing direction, the door 5 is also pulled by the second magnet 13 and the third magnet 14 attracting each other. Since the door 5 is urged in the closing direction, the door 5 is held in the closed state without being opened by the reaction.

In this way, when the second magnet 13 passes through the first magnet 12 and then turns and closes, the turning speed of the door 5 is greatly reduced by the first magnet 12 and the second magnet 13. Therefore, no impact is exerted when the door 5 is completely closed, and the door 5 is securely closed without any impact. FIG. 7 shows the second embodiment.
In the second embodiment, the movable piece 9 of the hinge 6 is attached to the upper end of the door 5, and the upper end surface of the movable piece 9 is attached to the top plate 3 of the main body 1.
When the second magnet 13 is provided on the movable piece 9 of the hinge 6, the top plate 3 of the main body 1 serves as a fixed part, and the first magnet 12 and the 3 magnets 14
And are provided.

FIG. 8 shows a third embodiment. In the third embodiment, the second magnet 13 is embedded in the upper end surface near the center of rotation of the door 5 as an example of the movable portion, while the second magnet 13 passes through the lower surface of the top plate 3 in plan view. The 1st magnet 12 and the 3rd magnet 14 are embedded in the part to do. FIG. 9 shows the fourth embodiment. Door 5 of this fourth embodiment
Supports a pin (not shown) projecting from the upper end of one side edge thereof to the top plate 3 of the main body 1, while a pin 15 projecting from the lower end of one side edge of the door 5 is connected to the main plate 4. Bush 16 buried in
It is rotatably attached to the main body 1 by being pivotally supported. Then, the first magnet 12 and the third magnet 14 are embedded in the upper surface of the bush 16, while the second magnet 13 is embedded in the lower surface of the door 5.

FIG. 10 shows a fifth embodiment. The door 5 of the fifth embodiment is horizontally rotatable by fitting the shaft portion 5a formed at the base end portion thereof into the pin holes 17 formed at the lower surface of the top plate 3 and the upper surface of the base plate 4. I have to. The second magnet 13 is embedded in the outer peripheral surface of the lower end of the shaft portion 5a of the door 5, while the pin hole 17 of the main plate 4 is provided.
The first magnet 12 and the third magnet 14 are embedded in the inner peripheral surface of the.

FIG. 11 shows a sixth embodiment in which a plurality of first magnets 12 and a plurality of second magnets 13 are provided. That is, in the sixth embodiment, the vertically extending support shaft 18 is fixed between the ends of the top plate 3 and the base plate 4 of the main body 1, and the support shaft 18 is fitted to one side edge of the door 5. The door 5 is attached to the main body 1 so as to be horizontally rotatable by forming the tubular portion 5b so as to extend over the entire length.

Then, two first magnets 12 and two third magnets 14 are embedded on the opposite side of the shaft 18, which is an example of a fixed portion, with the shaft center of an appropriate height portion sandwiched therebetween. In the door 5, two second magnets 13 corresponding to the first magnet 12 and the third magnet 14 are embedded in the inner peripheral surface of the tubular portion 5b. In this case, the second magnet 1 of the first magnet 12
All the magnetic poles of the portion facing 3 are set to the S pole, and the portion of the third magnet 14 facing the second magnet 13 is set to the N pole.

In the sixth embodiment, when the door 5 is rotated, the two second magnets 13 with the shaft center sandwiched between them are the two first magnets.
Since it does not pass the magnet 12, the rotation speed of the door 5 can be reduced in three stages. The first magnet 1
Or two second magnets 13 and one second magnet 13 each, or
Alternatively, if the first magnets 12 are provided one by one and the second magnets 13 are provided two by two, the rotation speed of the door 5 can be reduced in two steps).

In the case of this sixth embodiment, each magnet 12, 1
The repulsive force between the first magnet 12 and the second magnet 13 can be increased by forming 3 and 14 so as to extend in the vertical direction or providing a large number of them at appropriate intervals in the vertical direction. As is apparent from the sixth embodiment, the magnet 1
It is also possible to provide a plurality of each of 2, 13, and 14, which makes it possible to effectively reduce the opening / closing speed even when the door 5 is large. Also,
The number of first magnets 12 and the number of third magnets 13 may be different.

Although the embodiments of the present invention have been described above, it goes without saying that the present invention can be implemented in various modes. For example, the place where the magnet is provided may be appropriately set according to the door mounting structure, and the number, size, and strength of the magnets may be appropriately set according to the size of the door. Further, it goes without saying that the present invention can be applied not only to the cabinet but also to a door device for other furniture.

[Brief description of drawings]

1A and 1B are views showing a first embodiment, FIG. 1A is a perspective view of an entire cabinet, and FIG. 1B is a separated perspective view of a hinge.

FIG. 2 is a sectional plan view taken along the line II-II of FIG.

FIG. 3 is a front view of the cabinet.

4A is a plan sectional view taken along the line IVa-IVa in FIG. 3, and FIG.
FIG. 4 is a sectional view taken along line IVb-IVb of FIG. 3.

FIG. 5 is a perspective view showing an arrangement state of magnets.

6 (a), 6 (b) and 6 (c) are diagrams showing the operation.

FIG. 7 is a view showing a second embodiment, (a) is a partial front view,
(B) is a bb sectional view of (a), (c) is a plane sectional view similar to (b) with the door opened.

FIG. 8 is a view showing a third embodiment, (a) is a partial front view,
(B) is a bb sectional view of (a), (c) is a plane sectional view similar to (b) with the door opened.

FIG. 9 is a view showing a fourth embodiment, (a) is a partial front view,
(B) is a plane sectional view taken along the line bb of (a).

10A and 10B are views showing a fifth embodiment, in which FIG. 10A is a partial front view and FIG. 10B is a sectional plan view of FIG.

11A and 11B are views showing a sixth embodiment, in which FIG. 11A is a partial front view and FIG. 11B is a sectional plan view of FIG.

[Explanation of symbols]

 1 Main body of cabinet 2 Side plate 3 Top plate 4 Base plate 5 Door 6 Hinge 8 Fixed piece 9 Movable piece 12 First magnet 13 Second magnet 14 Third magnet

Claims (2)

[Claims] 1. A furniture in which a door is rotatably attached to a furniture body via a hinge or a pivoting member such as a pin, in which a first magnet is attached to a fixing portion such as a hinge fixing piece, and a hinge. A second magnet is attached to a movable part such as a movable piece, and
The magnet and the magnet are provided so as to pass each other while they are in close contact with or close to each other during opening and closing of the door, and when the first magnet and the second magnet pass each other, the magnetic poles of the surfaces facing each other are set to the same magnetic pole. Door device for furniture. 2. The "claim 1" according to claim 1, wherein any one member of the fixed part and the movable part is provided with a third magnet which attracts a magnet of the other part when the door is closed. A door device for furniture, which is characterized in that