JP2002147096A - Door opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device allowing single-operation work for attaching a door body to a fixed member such as furniture and fittings with simple structure without making the device large-sized. SOLUTION: As shown in Figure 5 (A), a door body is brought close to a fixed member, that is, a cylindrical body 7a is brought close to a cylindrical body 20a, and a lower cylinder part 12 of a bush 9 is inserted from an opening 26a of a bearing member 24 to allow a locking member 15 to abut on a side wall 26b of the bearing member 24. The lock member 15 is thereby housed in a slit 16 against the energizing force of a projecting piece 16a as shown in Figure 5 (B), so that the locked state of a large groove 11b of a shaft bar 6 to the peripheral edge of a through-hole 15a of the locking member 15 is released, and the shaft bar 6 is inserted into an insert through-hole 25a of the bearing member 24 by the resilience of a spring 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for opening / closing a door provided on furniture, fittings and the like.

[0002]

2. Description of the Related Art There are various types of door opening / closing devices for attaching a door to a fixing member such as furniture or a fitting. Of these, one that allows the mounting operation to be performed with one touch is disclosed in Japanese Patent Application Laid-Open No. 7-82946. As shown in FIG. 8, a top pivot mechanism (door opening / closing device) 100 disclosed in this publication includes a hinge member 104 which is provided on a fixed frame 101 and includes a support fitting 102 and a support arm 103. The connection with the other hinge member 108 formed of the mounting bracket 106 and the interlocking arm 107 provided on the door 105 can be performed with one touch. This top pivot mechanism 10
The operation description of 0 will be outlined with reference to FIG. This mechanism 10
0, the connecting body 103a formed on the support arm 103
9, the rotation center axis 110a of the bearing block 110 fixed to the cylindrical body 107a of the interlocking arm 107 is inserted into the insertion opening 109 (rectangular cutout of the connecting body 103a).
(A) is inserted in the direction of the arrow, and when the operation portion 111a of the operation lever 111 is pushed by the rotation center shaft 110a, the operation lever 111 is turned on the support shaft 1 of the support block 112.
It rotates in the direction of the arrow in FIG. 9A around 12a against the urging force of the coil springs 113 and 114.

Then, the support projection 11 of the operation lever 111 is
1B is disengaged from the engaging step 115a of the opening / closing body 115, and the opening / closing body 115 is, as shown in FIG. 9B, a coil spring 113 and a coil spring 1 arranged in series with the coil spring 113.
By the urging force of No. 14, the insertion opening 109 is pushed in the closing direction, that is, in the direction of the arrow in FIG. 9B. At this time, the rotation center shaft 110a is supported by the opening / closing body 115 and the operation lever 111. Thus, according to the top pivot mechanism 100, the rotation center shaft 1
By simply inserting the connector 10a from the insertion opening 109 of the connecting body 103a, this type of mounting operation can be performed with one touch.

[0004]

However, the above-described mechanism is very convenient because the mounting operation can be performed with one touch, and the mechanism is very convenient. However, the members constituting the mechanism, such as the operation lever 111 and the support block, are provided. Since the connecting body 112, the opening / closing body 115, and the like are incorporated in the connecting body of the support arm, the connecting body becomes larger than before, and when used for this type of door, the appearance is deteriorated. Also,
There are many members required to configure the mechanism, and naturally the product cost increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door opening / closing device which allows a one-touch mounting operation for mounting a door to a fixing member such as furniture or a fitting with a simple structure without increasing the size of the device. It is in.

[0006]

In order to solve the above-mentioned problems, a door opening / closing device according to a first aspect of the present invention is provided with a first engagement member provided on a fixed member and a door body. A device for connecting the second engaging member with the second engaging member via a shaft rod, wherein one of the first engaging member and the second engaging member is provided with a lock means for locking the shaft rod, and the other is provided with a locking means. The first engagement member or the second engagement member is provided with a bearing member into which the locked state of the shaft is released and the shaft is inserted. According to this device, the first engagement member and the second engagement member are connected via the shaft bar only by releasing the locked state of the shaft bar by, for example, applying a pressing force to the locking means. Since it is provided, the mounting operation for mounting the door body to the fixing member can be performed with one touch, as well as the structure itself is simple, and an increase in the size of the device can be avoided.

In the door opening and closing device according to a second aspect of the present invention, the locking means is capable of engaging and disengaging a recess formed in the shaft and a through hole through which the shaft is inserted. The locking member is formed as described above, and the projection piece for urging the locking member to maintain the locked state of the shaft rod, while the bearing member is connected to the first engagement member and the second engagement member. When the connecting member is connected in series, a flange is provided to abut on the lock member to release the locked state of the shaft, and an insertion hole into which the shaft is inserted is provided. According to the present device, the shaft bar locked to the periphery of the through hole of the lock member by the urging force of the protruding piece is released from the locked state by bringing the lock member into contact with the flange of the bearing member. In this case, the bearing member is inserted into the through hole and the bearing member is inserted into the through hole, whereby the mounting operation can be performed with one touch, and the device structure can be enlarged. And can be configured very simply.

According to a third aspect of the present invention, there is provided a door opening / closing device, wherein the locking means is tilted with one end fixed as a fulcrum with respect to the shaft bar, and is urged in the expanding direction of the tilt angle.
Further, the shaft is formed of a movable piece having a through-hole formed therein so as to penetrate the shaft so as to be able to be engaged and disengaged from the shaft, while the bearing member comprises the first engagement member and the second engagement member. When the engaging member is connected to the movable member, the engaging member is provided with a projection that comes into contact with the movable piece to release the locked state of the shaft rod, and includes an insertion hole into which the shaft rod is inserted. According to the present apparatus, when the movable piece is placed in the biased state as described above, the shaft rod locked in the through hole by the frictional force between the through hole and the shaft rod of the movable piece is used. By bringing the movable piece into contact with the projection of the bearing member to release the locked state, the movable piece is inserted into the through hole and is inserted into the insertion hole of the bearing member. Thus, the same effect as described above can be obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A door opening / closing device according to a first embodiment of the present invention will be described with reference to FIGS. In the door opening / closing device 1 according to the present embodiment, as shown in FIG. 1, the first engagement member 3 provided on the fixed member 2 and the second engagement member 5 provided on the door body 4 In the case where the door body 4 is continuously provided, the shaft bar 6 locked by the second engagement member 5 is inserted into the first engagement member 3 in the direction of the arrow in FIG. Installation work can be done with one touch. The door opening / closing device 1 is one of the door opening / closing devices arranged at a predetermined interval between the fixed member 2 and the door body 4. In the present embodiment, the fixed member 2 and the door It is arranged above the body 4.

The configuration of the door opening and closing device 1 will be described with reference to FIGS. As described above, the present device 1 includes the first engaging member 3 and the second engaging member 5 and the connecting member such as the shaft 6 for connecting these members in series. The second engaging member 5 and the connecting member provided thereon will be described. The second engagement member 5 is, as shown in FIG.
A cylindrical body 7a is formed at one end of the mounting plate 7, and a screw hole for mounting the mounting plate 7 to the door body 4 is appropriately formed in the plate-like portion 7b. Several holes are drilled, and the cylindrical body 7a has:
Only several connecting members such as the shaft 6 are provided.

That is, these connecting members mainly consist of the flange 8
, a hollow cylindrical resin bush 9 having an annular flange 9a at a substantially central portion thereof, a flange 10 at an upper end thereof, and a shaft portion 1 suspended from the flange 10.
1 and a small groove 1
1a, and a large groove at the lower end thereof (a component of the locking means)
11b and a lock member 15 to be described later.
It is composed of Of these, the bush 8 has its flange 8a
Is pressed into the uppermost end of the cylindrical body 7a while the bush 9 is in contact with the uppermost end of the cylindrical body 7a. And the lower cylindrical portion 12 is disposed so as to protrude from the lowermost end of the cylindrical body 7a. On the other hand, the shaft 6
The flange 10 can be brought into contact with the flange 8 a of the bush 8, and the shaft portion 11 can penetrate through the hollow portions of the bush 8 and the bush 9 and project from the lower cylindrical portion 12 of the bush 9. It is arranged in. And the small groove 1 of this shaft portion 11
1a, an E-ring 13 is fitted, and a spring 14 is interposed between the E-ring 13 and the cylindrical lower end 8b of the bush 8. 10 is urged in the direction in which it comes into contact with the flange 8a of the bush 8 (see FIG. 5B). However, as will be described later, when the shaft 6 is locked by the lock member 15, the shaft is 6 is separated from the flange 8a of the bush 8, and the spring 14 is placed in a compressed state between the E-ring 13 and the cylindrical lower end 8b of the bush 8 (FIG. 5A).
reference).

The connecting member includes a lower cylindrical portion 12 of the bush 9.
The lock member (locking means) 15 which is loosely fitted in a slit 16 described later formed in the above is included. As shown in detail in FIG. 3 (A), the lock member 15 is a flat columnar member having a rectangular short cross section formed in an arc shape with a short side, and is eccentric with respect to the center axis of the columnar member. A through hole 15a is formed. On the other hand, the lower cylindrical portion 12 of the bush 9 has
A slit 16 is provided at right angles to the axis of the lower cylindrical portion 12, and a protrusion (locking means) 16 a is formed in one opening of the slit 16 in a hanging state.
The projecting piece 16a is urged so as to be inclined toward the inside of the slit 16 in order to utilize the elastic force of the material.
However, the projecting piece 16a is not integrally formed with the lower cylindrical portion 12 as in the present embodiment, but may be formed separately from the lower cylindrical portion 12.

Here, the operation of the locking means according to the device 1 will be described. The lock member 15 loosely fitted in the slit 16 of the lower cylindrical portion 12 is in a state where the shaft 6 is in a position as shown in FIG. 3B, that is, the first engagement member 3 and the second engagement member 5
In the state prior to the continuous connection of the protruding pieces 16a, the projections 16a slightly protrude from the slits 16 by the urging force of the protruding pieces 16a. At this time, the large groove 11b of the shaft 6 is locked to the periphery of the through hole 15a of the lock member 15, and the shaft 6 is locked to the second engagement member 5 by the lock member 15.
On the other hand, when the shaft 6 is in the position as shown in FIG. 3C, that is, when the first engagement member 3 and the second engagement member 5 are connected to each other, the lock member 15 It is configured to be accommodated in the slit 16 against the urging force of the piece 16a. At this time, the shaft rod 6 is inserted into the through hole 15a, and the locked state is released. In this manner, in the present embodiment, the lock member 15 is loosely fitted to the slit 16 formed in the lower cylindrical portion 12 of the bush 9 so as to be able to engage and disengage with the large groove 11b of the shaft 6.

Next, the first engaging member 3 and the connecting member disposed thereon will be described. The first engagement member 3 is shown in FIG.
As shown in FIG. 5, in this embodiment, a case body 21 is provided in addition to the mounting plate 20, and the mounting plate 20 moves on the case body 21 fixed to the fixing member 2 in the front-rear direction ( While moving in the directions of arrows A and B in FIG. 4, it can be moved in the left and right directions (directions of arrows C and D in FIG. 4) by the adjustment bolt 23 to perform adjustment in each direction. A cylindrical body 20a is formed at one end of the substantially plate-shaped mounting plate 20, and only the shaft 25 of the bearing member 24 as a connecting member is press-fitted into the cylindrical body 20a. ing.

The bearing member 24 includes the cylindrical shaft portion 25 having a bottomed through hole 25a, and a flange portion 26 erected on the shaft portion 25 and having a C-shaped cross section. ing. The opening 26a of the flange 26 is large enough to allow the lower cylindrical portion 12 of the bush 9 to be inserted, and is used to connect the first engagement member 3 and the second engagement member 5 to each other. When the lower cylindrical portion 12 is inserted from the opening 26a,
The flange portion 26 comes into contact with the lock member 15 protruding from the slit 16 and acts to release the locked state of the shaft 6. Then, the shaft 6 whose locking state has been released is inserted into the insertion hole 25a.

Next, a procedure of an attaching operation for attaching the door 4 to the fixing member 2 using the present apparatus 1 will be described with reference to FIG. In FIG. 5, the fixing member 2, the door 4, and the like are omitted, and only the portions of the cylindrical body 7 a of the mounting plate 7 and the cylindrical body 20 a of the mounting plate 20 which are continuously provided by the shaft 6 are shown. I have. The use of the present apparatus 1 makes it possible to perform the above-described mounting operation extremely easily. That is, FIG.
As shown in (A), the door body 4 is brought closer to the fixing member 2,
In other words, the cylinder 7a is brought closer to the cylinder 20a, and the lower cylindrical portion 12 of the bush 9 is connected to the opening 26a of the bearing member 24.
From the side wall 26 of the bearing member 24.
5B, the lock member 15 is housed in the slit 16 against the urging force of the protruding piece 16a, as shown in FIG. 5B, so that the lock member 15 The locked state of the large groove 11 b of the shaft 6 is released, and the shaft 6 is inserted into the insertion hole 25 a of the bearing member 24 by the elastic force of the spring 14. Thus, the lock member 1
The above-described mounting operation can be performed with one touch only by bringing the 5 into contact with the side wall 26b of the flange portion 26.

When performing the removing operation, the lower cylindrical portion 12 is lifted, for example, against the urging force of the spring 14 so as to release the contact state.
Only has to be withdrawn from the opening 26a, that is, it has only to be done by moving the door 4 away from the fixing member 2. At this time, the lock member 15 is protruded by the urging force of the protruding piece 16a, and the large groove 11b of the shaft rod 6 is locked to the periphery of the through hole 15a of the lock member 15 as the shaft rod 6 is lifted as shown in FIG. The state shown in FIG.

A door opening / closing device 30 according to a second embodiment of the present invention will be described. The present device 30 is different from the above-described device 1 only in the configuration of the lock means. Therefore, points relating to the lock means of the present device 30 will be described with reference to FIG. However, in FIG. 6, the same components as those in FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted. In the present embodiment, instead of the shaft 6, the shaft 3
1, a bush 32 is used instead of the bush 9, and a bearing member 33 is used instead of the bearing member 24.
Here, the shaft 31 is obtained by removing the large groove 11b from the shaft 6, and the bush 32 is obtained by deleting the lower cylindrical portion 12 from the bush 9. Instead of this, the arc of the outer peripheral edge of the flange 9a is formed. An elastic thin plate-shaped movable piece 34 having one end as a fixed fulcrum and inclined at a predetermined angle with respect to the flange 9a is disposed on the upper side (FIG. 6A).
Has a mode in which it is inclined at a predetermined angle with respect to the shaft rod 31 inserted into the through hole 34a formed substantially in the center. The through hole 34a is provided with the through hole 3 as described later.
It acts so that it can be disengaged from the shaft 31 inserted into the shaft 4a. The bearing member 33 is provided on the side wall 2 of the bearing member 24.
6B, a protrusion 35 is provided at an appropriate position in FIG. 6B (FIG. 6A). The movable piece 34 is not formed integrally with the flange 9a as in the present embodiment, but may be formed separately from the flange 9a.

Next, with reference to FIGS. 6B and 6C, the operation of the locking means according to the device 30 will be described. The shaft 31 inserted into the through hole 34a of the movable piece 34 is positioned when the shaft 31 is in a position as shown in FIG. 6B, that is, the first engagement member 3 and the second engagement member 5 In a state before the two are continuously provided, the shaft end 31a of the shaft 31 is somewhat protruded from the through hole 34a of the movable piece 34. At this time,
The shaft 31 is locked in the through hole 34 a of the movable piece 34 urged in the direction of expanding the inclination angle (the direction of the arrow in the figure), and the shaft 31 is moved by the movable piece 34 into the second engaging member 5. It is in the form of being locked to. On the other hand, when the shaft 31 is in the position as shown in FIG. 6C, that is, when the first engagement member 3 and the second engagement member 5 are connected to each other, the shaft of the shaft 31 is Is inserted up to the insertion hole 25 a of the bearing member 33. At this time, the movable piece 34 receives the force opposing the urging force and rotates in the direction of closing and closing the inclination angle (the direction of the arrow in the figure), so that the locked state is released. Incidentally, the above-mentioned locked state is based on the action of a frictional force between the through hole 34a of the movable piece 34 and the shaft 31. The magnitude of the frictional force depends on the coefficient of friction between the two. Needless to say, it depends on the hole diameter of the through hole 34a of the movable piece 34, the shaft diameter of the shaft 31 and the inclination angle of the movable piece 34, and the like.

The door 4 is attached to the fixing member 2 using the apparatus 30.
An outline of the procedure of the mounting operation for mounting the device will be described. Even if the present device 30 is used, the above-mentioned mounting operation can be performed extremely easily. That is, as shown in FIG. 6B, the door body 4 is moved closer to the fixed member 2, and the shaft end 31 a of the shaft 31 protruding from the through hole 34 a of the movable piece 34 is connected to the opening 2 of the bearing member 33.
6a, the movable piece 34 is inserted into the side wall 26 of the bearing member 24.
When the movable piece 34 is brought into contact with the projection 35 in FIG. 6B, the movable piece 34 moves in the closing direction as shown in FIG. Is released, and the shaft 31 is inserted into the insertion hole 25 a of the bearing member 33 by the elastic force of the spring 14. Thus, the mounting operation can be performed by one-touch only by bringing the movable piece 34 into contact with the protrusion 35 in the side wall 26b.

When performing the removing operation, for example, the flange 10 of the shaft 31 is lifted against the urging force of the spring 14 and the shaft end of the shaft 31 is released so that the contact state is released. It is only necessary to move the door 31 out of the opening 26a, that is, to move the door 4 away from the fixing member 2. At this time, the tilt angle of the movable piece 34 is moved in the expanding direction by the urging force, and the shaft 31 is locked in the through hole 34 a of the movable piece 34 as the shaft 6 is lifted, as shown in FIG. The state shown in FIG.

Incidentally, in the above-described embodiment, the present apparatus 1
Is described above the fixing member 2 and the door body 4, but even when the fixing member 2 and the door body 4 are arranged below, the mounting operation can be performed with one touch. I can do it. In the above-described embodiment, the mounting operation for mounting the door body 4 on the fixing member 2 is performed by one-touch operation by inserting the shaft 6 locked by the second engaging member 5 into the first engaging member 3. However, as described in the third embodiment (see FIG. 7), the first engagement member 3
Also, by inserting the shaft bar 6 locked to the second engagement member 5, the mounting operation can be similarly performed with one touch.
In FIG. 7, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

[0023]

According to the door opening / closing device of the present invention, the mounting operation for mounting the door to a fixing member such as furniture or fittings can be performed with one touch without increasing the size of the device and with a simple structure. .

[Brief description of the drawings]

FIG. 1 is a perspective configuration diagram of a door opening and closing device according to a first embodiment.

FIG. 2 is an exploded perspective view of a second engaging member and a connecting member of FIG. 1;

FIG. 3 is a partial detailed view of FIG. 2;

FIG. 4 is an exploded perspective view of a first engagement member and a coupling member of FIG. 1;

FIG. 5 is an operation explanatory diagram of the device of FIG. 1;

FIG. 6 is an operation explanatory diagram of the door opening / closing device according to the second embodiment.

FIG. 7 is a perspective configuration diagram of a door opening and closing device according to a third embodiment.

FIG. 8 is a configuration diagram of a conventional door opening / closing device.

FIG. 9 is an operation explanatory view of a conventional door opening and closing device.

[Explanation of symbols]

 1, 30 Door opening / closing device 2 Fixing member 3 First engaging member 4 Door body 5 Second engaging member 6, 31 Shaft 11b Large groove (concave groove, component of lock means) 15 Lock member (lock means) 15a Penetration Hole 16a Projection piece (locking means) 24, 33 Bearing member 25a Insertion hole 26 Flange 34 Movable piece (locking means) 34a Through hole 35 Projection

Claims (3)

[Claims] 1. A door opening / closing device for connecting a first engaging member provided on a fixing member and a second engaging member provided on a door body via a shaft rod, wherein One of the first engaging member and the second engaging member is provided with locking means for locking the shaft bar, and the other of the first engaging member and the second engaging member is locked with the shaft bar. A door opening and closing device, comprising a bearing member into which the shaft rod is inserted after the state is released. 2. The lock means includes a groove formed in the shaft, and a lock member formed so that a through hole through which the shaft is inserted can be engaged and disengaged from the groove. And a protruding piece for urging the lock member to hold the shaft bar in a locked state, while the bearing member connects the first engagement member and the second engagement member in series. 2. The door opening / closing device according to claim 1, further comprising: a flange portion that comes into contact with the lock member to release the locked state, and an insertion hole into which the shaft rod is inserted. . 3. The lock means is tilted with one end fixed as a fulcrum with respect to the shaft, urged in a direction in which the angle of inclination is widened, and inserted through the shaft. And a movable piece having a through-hole that is capable of engaging and disengaging between the first engaging member and the second engaging member. The door opening / closing device according to claim 1, further comprising: a projection that comes into contact with the movable piece to release the locked state; and an insertion hole into which the shaft rod is inserted.