JPH11166366A - Drawn door opening and closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawn door opening and closing device, by which a pair of right and left doors can be opened and closed synchronously by a small- sized and comparatively inexpensive linear motor, and slackening of a drawing wire can be easily adjusted. SOLUTION: On end of a first drawing wire 31 is connected to movable element 11 of a linear motor 6 to wrap the wire round a first pulley 8, and the other end is connected to a door 2b. One end of a second drawing wire 32 is connected to the movable element 6 to wrap the wire round the second pulley 9, and the other end is connected to the door 2b. When the door 2a is driven to open and close by the linear motor 6, the door 2b is drawn in the opposite direction to the door 2a. Further the connecting parts of the door 2b to the first drawing wire 31 and the second drawing wire 32 are put in the same position, and a connecting pin 15 which can be changed in the fixed position to the door 2b in the elongation direction of the drawing wire is provided to lock the first drawing wire 31 and the second drawing wire 32. Further, the position of the first pulley 8 or the second pulley 9 is freely adjusted in the longitudinal direction of the rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double door opening and closing device.

[0002]

2. Description of the Related Art There is a double door apparatus in which a pair of left and right doors are opened and closed by two linear motors. However, it is difficult to completely synchronize the opening and closing operations of the left and right doors.
In addition, a double door apparatus in which a pair of left and right doors are wound with a pulling wire between the driving pulley and the driven pulley disposed at both ends of the rail so as to pull the pair of right and left doors in opposite directions is provided between the driving pulley and the pulling wire. There is a possibility that smoothness may be lacked in the opening / closing operation, such as slipping or abrasion.

Further, Japanese Utility Model Laid-Open No. 6-4290 discloses a double door opening / closing device. In this opening and closing device, a pulley is provided on each of the left and right sides of a pair of left and right doors that open and close with the power of a door opening and closing cylinder, a wire is hung on each pulley, and the left ends of the left and right doors are connected by a wire hung on the left pulley. And the right ends of the left and right doors are connected by a wire hung on the right pulley.

[0004]

However, in the double door opening and closing device, the base end of the cylinder and the tip end of the piston rod are attached to the left end of the left door and the right end of the right door, respectively. , A large cylinder with a long stroke is required, and it cannot be supplied at low cost. Further, when the wires hung on each pulley are slackened, it is necessary to individually adjust the slackness. The present invention has been made in view of the above points, and a small and relatively inexpensive linear motor can be opened and closed by synchronizing the opening and closing operations of a pair of left and right doors, and a double door that can easily adjust slackness of a pulling wire. It is an object to provide a switchgear.

[0005]

According to a first aspect of the present invention, there is provided a double door opening and closing apparatus for opening and closing a pair of doors in a left and right direction. A slidable rail, a linear motor attached to the rail, and driving one of the pair of doors to open and close; a first pulley and a second pulley provided at both ends of the rail; One end is connected to the mover of the linear motor or the one door, and the other end is a first pulling wire connected to the other door via the first pulley, and one end is the mover or the linear motor of the linear motor. Connected to one door and the other end
A second pulling wire connected to the other door via a pulley.

According to a second aspect of the present invention, there is provided a double door opening and closing apparatus according to the first aspect, wherein the one or the other door of the first and second pulling wires is provided. And a connecting pin capable of changing a fixed position with respect to the door in the extending direction of the pulling wire, the connecting pin being provided at one end of the first pulling wire and the second pulling wire or the other. The end is locked, and the position of the first pulley or the second pulley is adjustable in the rail longitudinal direction.

[0007]

According to the double door opening / closing device of the present invention, one end of the first pulling wire is connected to the movable element of the linear motor or one of the doors, and the other end is hooked on the first pulley and the other end is hooked. Since one end of the second pulling wire was connected to the mover of the linear motor or one door while being connected to the other door, and the other end was connected to the other door by being hooked on the second pulley, either When one of the doors is opened and closed, the other door is pulled in a direction opposite to the one door. Therefore, with a small and relatively inexpensive linear motor, the pair of doors can be smoothly opened and closed by synchronizing the opening and closing operations.

In the double door opening and closing device according to the present invention, the connecting portion between one door or the other door and the first pulling wire and the second pulling wire is set at the same position, and the fixed position with respect to the door is set to the position of the pulling wire. A connecting pin that can be changed in the extending direction is provided to lock one end or the other end of the first pulling wire and the second pulling wire, and further, the first pulley or the second pulley can be adjusted in position in the rail longitudinal direction. Therefore, the slack adjustment of the pulling wires can be performed collectively without having to be performed for each pulling wire.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing a configuration of the double door apparatus 1, FIG. 2 is a perspective view of a connecting portion between a linear motor 6 and a first pulling wire 31 and a second pulling wire 32, and FIG. FIG. 4 is an enlarged sectional view of the connecting portion between the second pulling wire 32 and the door 2b, and FIG. 5 is a perspective view showing the position adjusting mechanism 21 of the first pulley 8. The pair of left and right doors 2a and 2b are provided with a pair of hangers 3 at their upper ends, respectively. A door wheel 4 attached to the hangers 3 is suspended by being laid on a rail 5 which is laid over the door opening D. The rail 5 is provided with a linear motor 6 for opening and closing drive and a controller 7 for the linear motor 6.
A first pulley 8 and a second pulley 9 are attached to both ends of the rail 5.

A horizontal joint arm 10 is attached to one of the hangers 3 of the door 2a, and the joint bracket 1 has a tip attached to a mover 11 of the linear motor 6.
2 are connected. Also, one hanger 3 of the door 2b
Above this, an inverted L-shaped bracket 13 is fixed. An adjustment slot 15 is formed in the horizontal bent piece 14 above the bracket 13 along the longitudinal direction of the rail 5. An adjusting bolt 17 having a connecting pin 16 at its head is fastened to the adjusting slot 15 by a nut 18.

The first pulley 8 is attached to the right end of the rail 5 via a position adjusting mechanism 21. The position adjusting mechanism 21 includes a mounting board 22 mounted on the rail 5, a guide plate 23 fixed to the mounting board 22,
And a position adjustment screw 25 which is guided by the position adjustment board. The mounting substrate 22 has a position adjusting screw 25 inserted through a bent piece 26 having a right end bent toward the front. The position adjusting board 24 supports the first pulley 8 at the left end, and has a bent piece 27 bent toward the front at the right end, and further has a parallel attachment along the longitudinal direction of the rail 5 at the center. The long hole 28 for use is formed. Then, the position adjusting board 24 is attached by attaching screws 29 which are inserted into the attaching long holes 28 and screwed to the guide plate 23. A position adjusting screw 25 is screwed into the bent piece 27 of the position adjusting substrate 24.

A first pulling wire 31 hung on the first pulley 8 and a second pulling wire 32 hung on the second pulley 9
Have loops formed at both ends. The first pulling wire 31 connects the loop 31a at one end to the linear motor 6.
And a loop 31b at the other end is wound around the first pulley 8 in a counterclockwise direction and is connected to the connecting pin 16 fastened to the adjusting slot 15 of the bracket 13. Lock. In addition, the second pulling wire 32
One end of the loop 32a is engaged with the connecting pin 35 provided on the mover 11 of the linear motor 6, and the other end of the loop 32b is wound around the second pulley 9 clockwise to be engaged with the connecting pin 16. .

When the linear motor 6 is driven by the open signal from a sensor (not shown) to move the movable element 11 to the left,
The door 2a is pulled to the left via 0. At this time, the first pulling wire 31 wound around the first pulley 8 is pulled, the door 2b is pulled rightward, and the door opening D is opened. When the mover 11 moves to the right after a certain period of time, the door 2a is pulled to the right via the joint arm 10. At this time, the second pulling wire 32 wound around the second pulley 9 is pulled, the door 2b is pulled leftward, and the door opening D is closed.

First pulling wire 31 and second pulling wire 3
In the case where the cable 2 is extended and loosened, the nut 18 for fastening the connecting pin 16 to the bracket 13 is loosened, and then the first pulley 8 is adjusted in position by the position adjusting mechanism 21 to remove the slack. The position adjustment of the first pulley 8 is performed by moving the position adjustment board 24 that supports the first pulley 8. When the mounting screw 29 is loosened and the position adjusting screw 25 is rotated, the position adjusting substrate 24 is guided by the guide plate 23 and moves in the longitudinal direction of the rail 5. After the position of the first pulley 8 is adjusted, the mounting screw 29 is tightened to fix the position adjusting board 24 to the mounting board 22. Then, the connecting pin 16 is fixed to the bracket 13 by tightening the nut 18.

In place of the connecting pins 34 and 35 provided on the mover 11 of the linear motor 6, a single connecting pin is provided on the door 2a pulled by the mover 11, and the first connecting pin is provided on the connecting pin.
The loops 31a and 32a at one end of the pulling wire 31 and the second pulling wire 32 may be locked.

The double door opening and closing device 1 described in the above embodiment can smoothly open and close by synchronizing the opening and closing operations of the pair of doors 2a and 2b with a small and relatively inexpensive linear motor. In addition, since the first pulley 8 and the second pulley 9 are not drive wheels, they do not slip and cause little wear.

Further, the connection of the first pulling wire 31 and the second pulling wire 32 to the door 2b is performed by connecting the connecting pin 16 which can change the position of fastening to the bracket 13 with an end loop 31.
b and 32b are locked, and the position of the first pulley 8 can be adjusted in the longitudinal direction of the rail 5 by the position adjusting mechanism 21, so that the tension of the pulling wires 31 and 23 can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a double door apparatus 1. FIG.

FIG. 2 shows a linear motor 6, a first pulling wire 31, and a second pulling wire.
It is a perspective view of the connection part with the pulling wire 32.

FIG. 3 is a perspective view of a connecting portion between a first pulling wire 31 and a second pulling wire 32 and a door 2b.

FIG. 4 is an enlarged sectional view of the same.

FIG. 5 is a perspective view showing a position adjusting mechanism 21 of the first pulley 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Double door device 2a, 2b ... Door 5 ... Rail 6 ... Linear motor 8 ... 1st pulley 9 ... 2nd pulley 11 ... Mover 13 ... Bracket Reference Signs List 16 connecting pin 21 position adjusting mechanism 31 first pulling wire 32 second pulling wire 34, 35 connecting pin

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takashi Mune 395-1, Kaminodan, Kokubu-shi, Kagoshima Inside Toyota Auto Body Research Laboratories

Claims (2)

[Claims] 1. A double door that opens and closes a pair of doors in a left-right direction, a rail that slidably supports the pair of doors, and a linear that is attached to the rail and that drives one of the pair of doors to open and close. A motor, a first pulley and a second pulley disposed at both ends of the rail, and one end connected to the mover of the linear motor or the one door, and the other end connected to the other via the first pulley. A first pulling wire connected to the first door and a second pulling wire having one end connected to the mover of the linear motor or the one door and the other end connected to the other door via the second pulley. And a double door opening and closing device. 2. A connecting portion of the first pulling wire and the second pulling wire to the one door or the other door is located at the same position, and a fixing position of the connecting portion with respect to the door can be changed in a direction in which the pulling wire extends. A connecting pin, which locks one end or the other end of the first pulling wire and the second pulling wire with the connecting pin, and
The double door opening and closing device according to claim 1, wherein the position of the pulley is freely adjustable in the longitudinal direction of the rail.