JPH1130071A - Automatic closing device of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manually operate a sliding door in the case it is opened and to provide an automatic closing device of the sliding door for making closing operation of the sliding door automatically in the case where it is closed in the opening and closing of the sliding door such as window, door, papered sliding door, ventilator, etc. SOLUTION: In a sliding door opended and closed while sliding between threshold and lintel, a winding reel 2 and an urging spring 3 urging the winding reel 2 to a winding side are arranged to the inside of a sliding frame 1 of the upper part of the sliding door, a straight driving winding 5 constituted of form memory alloy or carbon fiber, etc., is wound on the winding reel 2, and the end of the straight driving winding 5 is fixed to the lintel side in the closing direction of the sliding door. In order to lock in a state to open the sliding door, a latchet 6 for stopping the rotation of the winding reel 2 and a lock claw 8 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the opening and closing of a sliding door such as a window, a door, a sliding door or a sliding door, which is operated by a human being when the door is opened and automatically closed when the door is closed. Automatic closing device for sliding doors.

2. Description of the Related Art Conventionally, technology relating to an automatic closing device for a sliding door has been known. For example, as in the technique disclosed in FIG. That is, in the prior art, the wire 22 is extended from the sliding door frame at the top of the sliding door D,
The weight 20 was connected to the end of the wire 22. The weight 20 is configured to move up and down inside the sliding door frame column 23, and a pulley 21 is disposed in a column above the sliding door frame column 23, and the direction of the wire 22 is changed by the pulley 21.
The conversion was from horizontal to vertical.

[0003]

However, in the prior art, the interior of the sliding door frame 23 is hollowed out, and the weight 2
0 had to be configured to be able to move up and down, and there was a problem that there was no mechanism to lock the sliding door D with the door open. In addition, since the wire 22 is formed of a normal steel wire, there is a problem that the wire 22 hangs down or bends below the headgate and is caught or entangled between the sliding door D and the doorgate 25. It is. The present invention
Instead of using a weight, this function is performed by the rectilinear winding 5 and the biasing spring 3, and the automatic door closing device of the present invention is housed in the upper headgate portion and the upper frame of the sliding door. It is the one with improved performance. Further, such a configuration can be achieved by using the straight winding 5 formed of a shape memory alloy or the like. Further, a lock mechanism is provided so that the sliding door D can be maintained in an opened state.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In claim 1, in the sliding door D which is opened and closed while sliding between the threshold 26 and the gate 25,
A take-up reel 2 and a biasing spring 3 for biasing the take-up reel 2 toward the take-up side are arranged in a sliding door frame 1 above the sliding door D, and the take-up reel 2 is provided with a shape memory alloy, carbon fiber, or the like. Is wound, and the straight winding 5 is wound up.
Is fixed to the gate 25 in the direction of closing the sliding door D.

According to a second aspect of the present invention, in the automatic sliding door closing device according to the first aspect, the ratchet 6 for stopping the rotation of the take-up reel 2 so as to lock the sliding door D in an opened state.
And a lock claw 8.

[0006]

Next, an embodiment of the present invention will be described. FIG. 1 is a front view showing an entire configuration of an automatic closing device for a sliding door according to the present invention, FIG. 2 is an enlarged front sectional view showing a take-up reel 2 and a biasing spring 3, and FIG. FIG. 4 is a sectional view taken along the line YY of FIG. 1 showing the sliding door D and the upper part of the gate 25, and FIG. 5 is a sectional view of the take-up reel 2 and the biasing spring 3. FIG. 6 is a partial front view showing a lock mechanism of an automatic closing device for a sliding door, and FIG. 7 is an enlarged front sectional view showing a locking mechanism of an automatic closing device for another sliding door. And FIG. 8 shows the regulating body R shown in FIG.
9 is an enlarged view showing a part of the leaf spring 53, FIG. 9 is an enlarged view showing a part of the regulating body R and the coil spring 54, and FIG.
It is a front view showing the mechanism of the conventional automatic closing device of a sliding door.

Referring to FIG. Sill 26 below
And a door gate 25 is arranged on the upper part, sliding door frame columns 23 are arranged on the left and right, and two sliding doors D on the left and right are slidably opened and closed in a square frame. I have. The sliding door automatic closing device B of the present invention is configured on one of the two left and right sliding doors D. A lock mechanism operating section is formed at the handle B of the sliding door D provided with the automatic closing device A. The handle B and the automatic closing device A are connected by a connecting link 9.

The leading end of the rectilinear winding 5 extended from the automatic closing device A is locked to an end locking pin 10 fixed to the gate 25. The straight winding 5 is made of a shape memory alloy, carbon fiber, or the like. The part of the automatic closing device A which is a main part of the present invention will be described in detail with reference to FIGS. In the automatic closing device A, a concave portion 12 is formed in an upper portion of the sliding door frame 1 that forms the sliding door D, and the automatic closing device A is configured inside the concave portion 12.

The automatic closing device A is supported by two shafts, a take-up reel shaft 15 and a winding spring shaft 7. The take-up reel 2 and the reduction small-diameter gear 1 are mounted on the take-up reel shaft 15.
3, the take-up reel shaft 15 is fixed to the sliding door frame 1, and the take-up reel 2 and the reduction small-diameter gear 13 can be freely fitted on the outer periphery of the take-up reel shaft 15. The reduction large-diameter gear 4, the urging spring 3, and the ratchet 6 are arranged on the winding spring shaft 7.

The winding spring shaft 7 is fixed to the sliding door frame 1, and the reduction large-diameter gear 4 and the ratchet 6 are integrally formed so as to be freely rotatable around the outer periphery of the winding spring shaft 7. In the present embodiment, is constituted by a winding spring, one end on the outer peripheral side is locked on the inner diameter side of the ratchet 6, and the other end on the inner peripheral side is locked and fixed to the winding spring shaft 7. The ratchet 6
The lock claw 8 is engaged with the outer periphery of. The take-up reel 2
Has one end of a rectilinear winding 5 formed of a shape memory alloy or carbon fiber or the like locked and wound, and the other end of the rectilinear winding 5 formed of the shape memory alloy or carbon fiber. Is locked to the end locking pin 10 on the side of the gate 25.

[0011] With such a configuration of the automatic closing device A,
The automatic closing action is performed as follows. As shown in FIG. 2, one end of the rectilinear winding 5 is fixed to the gate 25 by an end locking pin 10. The other end of the rectilinear winding 5 is wound around a take-up reel 2 provided on the automatic closing device A on the side of the sliding door frame 1. Therefore, when the sliding door frame 1 is slid to the left in FIG. 2 and moved in the opening direction, the straight winding 5 wound on the take-up reel 2 is pulled out, and the straight winding 5 is pulled out. With the force, the take-up reel 2 rotates,
The rotation of the take-up reel 2 rotates the small reduction gear 13.

Since the large-diameter reduction gear 4 is meshed with the small-diameter reduction gear 13, the reduced rotation is transmitted to the large-diameter reduction gear 4. The rotation of the reduction large-diameter gear 4 causes the urging spring 3
The ratchet 6 which fixes the outer periphery of this rotates. By the rotation of the ratchet 6, the urging spring 3 having the other end locked and fixed to the winding spring shaft 7 applies a rotating force in the direction of accumulating the urging force. With the sliding door D fully opened, the urging spring 3 is fully wound around the winding spring shaft 7 until it is tightened.

The rectilinear winding 5 is guided and guided by the guide hole 11 provided in the recess 12, and extends to the upper surface of the sliding door frame 1. Since the rectilinear winding 5 is made of a shape memory alloy, carbon fiber, or the like,
The linearity is maintained, so that it does not hang down on the sliding door frame 1 or under the Kamoi 25. When the straight winding 5 hangs down, the straight winding 5 and the reduction large-diameter gear 4
As a result, the sliding door frame 1 and the like come into contact with each other and get caught up, and the automatic sliding door closing device of the present invention cannot be established. The present invention has an improvement in that the straight winding 5 is made of a shape memory alloy, carbon fiber, or the like.

FIG. 6 shows a linkage structure of a lock mechanism provided at the handle B and a ratchet mechanism provided at the recess 12 of the sliding door frame 1. A lock-side operation unit 31 and a lock-release-side operation unit 30 are provided at the handle B. While operating the handle B, the lock-side operation unit 31 or the unlock-side operation unit 30 can be operated at the same time. When the lock release side operation unit 30 or the lock side operation unit 31 is operated up and down, the slide 28 is moved up and down, and a detent mechanism 29 for fixing the vertical position of the slide 28 is constituted by a ball and arranged.

The sliding body 28 can slide up and down inside a sliding cylinder 36. When the slide 28 is moved up and down by the operation of the unlocking side operation unit 30 and the lock side operation unit 31, the connection link 9 is operated up and down, and the lock claw 8 is moved up and down by the up and down movement of the connection link 9. . The lock claw 8 is released when the lock release operation unit 30 is pushed upward, and is released when the lock operation unit 31 is pressed downward, so that the lock claw 8 is operated in the direction of locking with the ratchet 6. You.

When the lock claw 8 is locked to the ratchet 6, the rotation of the ratchet 6 is stopped by locking the lock claw 8 at a position where the sliding door D is opened, and the ratchet 6 is moved by the urging spring 3. , The operation of pulling the rectilinear winding 5 to close the sliding door D is stopped, and the sliding door D is fixed at the opened position. When the unlocking-side operation portion 30 of the sliding body 28 is pushed upward in the open position in this state, the lock claw 8 is disengaged from the ratchet 6 and the ratchet 6 and the reduction large-diameter gear 4 can be rotated by the urging force of the urging spring 3, the winding reel 2 attracts and winds the rectilinear winding 5, and the sliding door D moves in the closing direction.

By providing such a lock mechanism, when it is not necessary to operate the automatic closing device A, the automatic closing device A is pushed in the direction of the lock-side operation section 31 to allow the ratchet 6 to move.
Can be locked at the open position by engaging the lock claw 8 with the lock. Further, when it is necessary to always close the door after the door is opened, the unlocking-side operation unit 30 can be pushed upward to activate the automatic door closing device.

Referring to FIGS. 7, 8, and 9, the configuration of a lock mechanism of another automatic opening / closing device will be described. Instead of the lock mechanism and the ratchet mechanism described above, the recess 12 of the sliding door frame 1 is used.
A restricting body R is disposed at a position below the take-up reel 2 at the bottom of the reel. The other configuration is the same as the configuration of the automatic closing device A described above. An elastic member 50 such as rubber is attached to one end of the regulating body R, a weight 52 is attached to the other end, and a support shaft 51 is inserted and fixed at a substantially central portion. A leaf spring 53 is arranged below the regulating body R, and a mountain-shaped projection 53a is formed at the center of the leaf spring 53.

In the restricting member R, the portion of the elastic member 50 comes into contact with the outer peripheral surface of the take-up reel 2 by the action of the weight 52, and the portion of the weight 50
It is arranged so as to contact the inclined surface 3a, and is in an inclined state as shown in FIG. The support shaft 51
Are rotatably supported via bearings 57, 57,
The bearings 57 are fixed to the tips of the legs 55. The base ends of the legs 55, 55 are slidably inserted into the bottom of the recess 12 of the sliding door frame 1, and coil springs 54, 54 are disposed on the legs 55, 55.
4. The bearings 57 are covered with covers 56 so that the biasing force of the coil springs 54 allows the elastic member 50 of the regulating body R to always contact the outer peripheral surface of the take-up reel 2. Positioned.

When the sliding door D is opened, the sliding door D
When the opening is started, the restricting body R starts rotating by the frictional force of the elastic member 50 of the restricting body R and the urging force of the coil springs 54, 54, and the weight 52 climbs over the projection 53a of the leaf spring 53, and the restricting body R Is in a state where the rotation of the take-up reel 2 is not restricted. In this state, when the opening of the sliding door D is stopped, the frictional force of the elastic member 50 of the regulating body R and the coil springs 54
The elastic member 50 is pressed against the outer peripheral surface of the take-up reel 2 by the urging force of the above and the weight 52 abutting against the inclined surface of the projection 53a of the leaf spring 53, and the take-up reel 2 Regulate the rotation of trying to attract and rewind,
The sliding door D can be kept open.

When closing the sliding door D, the regulating body R is rotated in the opposite direction to the above (moving in the closing direction of the sliding door D and returning the regulating body R to the original position).
Is made rotatable by the urging force of the urging spring 3, and when the take-up reel 2 attracts the rectilinear winding 5 to take it up, the sliding door D moves in the closing direction. Thus, the regulatory body R
By opening the sliding door D and releasing the hand, the sliding door D can be maintained at a desired open position by simply opening the sliding door D, and the sliding door D is automatically pulled only once in the closing direction by hand. Can be closed.

[0022]

As described above, the present invention has the following advantages. As claimed in claim 1, in a sliding door that is opened and closed while sliding between a threshold and a gate, the take-up reel 2 and the take-up reel 2 are urged toward the take-up side in a sliding door frame 1 above the sliding door. An urging spring 3 is disposed, and the winding reel 2 is wound with a straight winding 5 made of a shape memory alloy, carbon fiber, or the like. The end of the straight winding 5 closes the sliding door D. Since it was fixed to the Kamoi side in the direction,
The rectilinear winding 5 made of a shape memory alloy, carbon fiber, or the like does not hang down on the upper part of the sliding door D in the open state. The inconvenience of being unable to close could be resolved.

According to a second aspect of the present invention, in the automatic sliding door closing device according to the first aspect, a ratchet 6 and a lock claw 8 for stopping rotation of the take-up reel 2 are provided to lock the sliding door D in an opened state. Therefore, by operating the locking pawl 8 on the ratchet 6 for stopping the rotation of the take-up reel 2 while providing the automatic closing device A, the sliding door D can be easily moved to the desired open position. It became possible to fix it.

[Brief description of the drawings]

FIG. 1 is a front view showing the entire configuration of an automatic closing device for a sliding door according to the present invention.

FIG. 2 is an enlarged front sectional view showing a take-up reel 2 and a biasing spring 3;

FIG. 3 is a sectional plan view showing a take-up reel 2 and a biasing spring 3;

FIG. 4 is a sectional view taken along the line YY of FIG.

FIG. 5 is a sectional view taken along line XX of FIG. 1 showing a take-up reel 2 and a biasing spring 3;

FIG. 6 is a partial front view showing a lock mechanism of the automatic door closing device.

FIG. 7 is an enlarged front sectional view showing a lock mechanism of another sliding door automatic closing device.

FIG. 8 is an enlarged view showing a part of a regulating body R and a leaf spring 53 shown in FIG. 7;

FIG. 9 is an enlarged view showing a restriction body R and a coil spring 54;

FIG. 10 is a front view showing a mechanism of a conventional automatic closing device for a sliding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Automatic closing device B Handle D Sliding door 1 Sliding door frame 2 Winding reel 3 Urging spring 4 Reduction large-diameter gear 5 Straight winding 6 Ratchet 7 Winding spring shaft 8 Locking claw 9 Connection link 10 End locking pin 12 Concave part 28 Depression 28 Sliding body 30 Lock-side operation unit 31 Lock-side operation unit

Claims (2)

[Claims] 1. In a sliding door D which is opened and closed while sliding between a threshold 26 and a gate 25, a take-up reel 2 and the take-up reel 2 are disposed in a sliding door frame 1 above the sliding door D on a take-up side. An urging spring 3 for urging is disposed, and the take-up reel 2 is wound with a rectilinear winding 5 made of a shape memory alloy, carbon fiber, or the like. An automatic closing device for a sliding door, characterized in that the sliding door is fixed to the Kamoi 25 side in a closing direction. 2. A sliding door automatic closing device according to claim 1, further comprising a ratchet for stopping rotation of the take-up reel and a lock claw for locking the sliding door in an opened state. Sliding door automatic closing device.