JPH08199904A - Starting switch structure in door engine - Google Patents

Abstract

PURPOSE: To provide a function as a safety device, only by fitting an optical switch on one face of a door, while eliminating the need for a wiring onto a wall section. CONSTITUTION: A user interrupts light to an optical switch 70 from the side face 20a of a door 20, or the user touches the touch plate 86a of a light-shielding device 80 from the other side face 20b of the door 20 and interrupts light to the optical switch 70 by a light-shielding lever of a light-shielding means 80, thus transmitting a signal for opening the door 20 to a door engine by the optical switch 70. The switch 70 continuously transmits the signal for opening the door 20 to the door engine 50 through the time when the user passes through the door 20 and the light are interrupted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a start switch structure for an automatic door opening / closing device, and more particularly to a start switch structure for automatically opening and closing a door by operating a start switch.

[0002]

2. Description of the Related Art As a start switch in an automatic door opening / closing device, a touch switch for opening / closing a door by an operator's touch, a light beam switch for opening / closing a door when a light beam is blocked, and a human body detected by infrared rays or the like have been conventionally used. There is a human body detection sensor that opens and closes the door. In the touch switch, as shown in FIG. 14B when the door 20 to be opened and closed is viewed from above, a pair of touch switches 110 and 110 attached to both surfaces of the door 20 emit a signal by an operator's touch and the door is opened. Open 20. On the other hand, as shown in FIG. 14C, the light beam switch always emits a light beam from the pair of light emitting devices 112, 112 on the entrance side and the exit side of the opening / closing frame 130 to the corresponding pair of detection sensors 114, 114. The light beam to the detection sensor 114 is blocked by the operator, and the detection sensor 114 emits a signal to open the door 20. Although the human body detection sensor is not shown,
The upper part of the door, which is arranged on the entrance side and the exit side. Each human body detection sensor has a light emitter and a light receiver. The light emitter emits light, the reflected light is received by the light receiver, and the movement of the human body and objects is detected by detecting the disturbance of the reflected light. It detects and opens the door.

[0003]

However, since the touch switch has a built-in battery, it has a thickness of several tens of millimeters, and it requires a left margin for the door shown in FIG. 14 (B). There is a problem that the effective opening width (stroke) L becomes narrow. Further, when the door 20 is closed, a safety device, for example, a light beam switch is arranged to prevent the person from being pinched, so that the door 20 is kept open while the person is passing and the light beam is blocked. Had to be configured.

Also, in the light switch, as shown in FIG. 14C, it is necessary to dispose a pair of the light emitting device 112 and the detection sensor 114 on the inside and the outside of the door, resulting in a high cost. I got it. Similarly, in the human body detection sensor, a pair of human body detection sensors must be arranged inside and outside the door. Further, the human body detection sensor has a problem that the human body detection sensor opens and closes the door each time a person passes near the door.

In order to solve these problems,
No. 24061 has been proposed. In this invention, a light emitter is provided on the door side, a light receiver is provided on the opening / closing frame side, and the touch switch provided on the inside and outside of the door is touched by the operator to irradiate light rays from the light emitter. It is configured to stop and thereby cause the light receiver to issue a door open signal. Then, while the door is open, the light receiver continues to send the door open signal while the light beam is blocked by a person, and the safety device is made unnecessary by making it possible to continue the door open. ing. However, in this invention, it is necessary to dispose a power supply line or a battery to the light emitter arranged on the door side and to house the signal line from the light receiver provided on the opening / closing frame side in the opening / closing frame. was there. The wiring of this signal line is an automatic door opening / closing device having an opening / closing frame, for example, a bank,
In an automatic door opening / closing device for a glass door of a store or the like, there is no particular problem because an automatic door opening / closing device in which a signal line for a light receiver is housed in the opening / closing frame in advance may be attached to an applicable portion. However, an automatic door opening / closing device that does not have the opening / closing frame and includes a door and a guide rail, for example, an automatic door opening / closing device for indoor use in an office or the like, has the guide rail attached to the upper part of an existing opening. , For what constitutes an automatic door,
There is a problem in that it is necessary to embed the wiring for the light receiver in the wall portion with which the door abuts.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a light switch on one surface of a door to perform a function as a safety device and a wall portion. It is to provide a starting switch structure in an automatic door opening / closing device that does not require wiring to the.

[0007]

In order to achieve the above object, in the starting switch structure of the automatic door opening / closing device according to claim 1 of the present invention, a guide rail 30 horizontally installed above the entrance and exit, and the guide rail. A door 20 that is slidably suspended on a door 30, a motor 40 that is disposed on the guide rail 30 that drives the door 20, and a guide rail 30 that controls the motor 40 to open and close the door 20. And the opening / closing control device 50 disposed on the side of the frame 20. The reflector 68 is disposed on the frame side in the direction in which the door 20 is closed, and the reflector 6 is disposed on one side surface 20a of the door 20.
8 is a light emitting device 78 that irradiates light, and a light receiving device 76 that is disposed on the one side surface 20a of the door 20 and that receives the light from the reflector 68. A light receiving device 76 that sends a signal for opening the door 20 to the opening / closing control device 50, and the other side surface 20 of the door 20.
It is characterized by comprising a light-shielding means 80 for mechanically blocking the light from the light emitting device 78 and / or the light to the light receiving device 76 by the contact of the user from the b side.

According to a second aspect of the present invention, there is provided a starting switch structure for an automatic door opening / closing device, wherein the motor 40 is a coil movable linear motor 40 including a stator 42 and a mover 44. A child 42 is arranged along the guide rail 30, and the opening / closing control device 5
The mover 44, which is fed from 0 through the feeder line 46, moves through the door 20, and the feeder line 46 is connected to the light emitting device 7.
A power line 72 for transmitting electric power to the optical receiver 8 and a signal line 74 for carrying a signal from the light receiving device 76 are accommodated.

In order to achieve the above object, in the starting switch structure in the automatic door opening and closing device according to claim 3 of the present invention,
A guide rail 30 that is horizontally installed above the doorway and a door 2 that is slidably suspended on the guide rail 30.
0, a motor 40 arranged on the guide rail 30 for driving the door 20, and an opening / closing control device 50 arranged on the guide rail 30 for controlling the motor 40 to open / close the door 20. And the reflector 68 arranged on the side of the frame located in the direction in which the door 20 is closed, the light emitting device 78 arranged on the door 20 and irradiating the reflector 68 with light, and arranged on the door 20. A light receiving device 76 for receiving the light from the reflector 68, and a light receiving device 76 for sending a signal for opening the door 20 to the opening / closing control device 50 when the received light is blocked, and the door 20. The light from the light emitting device 78 and / or the light from the light emitting device 78 is contacted by the user from both sides.
Light blocking means 80 for mechanically blocking the light to the light receiving device 76
And consist of.

According to a fourth aspect of the present invention, there is provided a start switch structure for an automatic door opening / closing apparatus, wherein the motor 40 is a coil movable linear motor 40 including a stator 42 and a mover 44. A stator 42 is arranged along the guide rail 30, and the mover 44 fed from the opening / closing control device 50 through a power supply line 46 moves through the door 20 to cause the power supply line 46 to emit the light. A power line 72 for transmitting power to the device 78 and a signal line 74 for carrying a signal from the light receiving device 76 are accommodated.

According to a fifth aspect of the present invention, there is provided a start switch structure for an automatic door opening / closing device according to the first aspect of the present invention.
As shown in FIG. 5, the light shielding means 80 includes a touch member 86 including a plate member 86a arranged parallel to the side surface of the door 20 and an arm portion 86b formed substantially perpendicular to the plate member 86a, and the touch member. The light emitting device 7 is fixed to 86.
8 and / or the light blocking member 88 that blocks the light to the light receiving device 76, and the touch member 86 and the light blocking member 88.
And a shaft 84 for pivotally supporting the door 20 in a direction perpendicular to the moving direction of the door 20.

The starting switch structure in the automatic door opening / closing device according to claim 6 is the same as in FIG.
As shown in FIG. 7, the light shielding means 80 is fixed to the plate member 86 a arranged parallel to the side surface of the door 20, and the light from the light emitting device 78 and / or the light receiving device 76 is fixed to the plate member 86 a. Light blocking member 86c for blocking the light of the
a) and a biasing means 92 for biasing the light shielding member 86c in the direction of separating from the light emitting device 78 and the light receiving device 76.

According to the start switch structure of the automatic door opening / closing device of claim 7, in FIG.
As shown in FIG. 7, the light shielding means 80 is a touch member 86 including a pair of plate members 86a and 86a ′ arranged in parallel to the side surface of the door 20 and an arm portion 86b that fixes both plate members 86a and 86a ′. A light blocking member 88 fixed to the touch member 86 and blocking light from the light emitting device 78 and / or light to the light receiving device 76, and the touch member 86 and the light blocking member 88 with respect to the moving direction of the door 20. And a shaft 84 pivotably supported in a vertical direction.

The starting switch structure of the automatic door opening / closing device according to claim 8 is the same as that according to claim 3 or 4.
As shown in FIG. 7, the light shielding means 80 is a touch member 86 including a pair of plate members 86a and 86a ′ arranged in parallel to the side surface of the door 20 and an arm portion 86b that fixes both plate members 86a and 86a ′. Light from the light emitting device 78 attached to the touch member 86 and / or the light receiving device 76
The light blocking member 94 for blocking the light to the door 2 and the touch member 86.
A shaft 84 pivotally supported in a direction perpendicular to the moving direction of 0, and a biasing means 92 for biasing the light shielding member 94 in a direction away from the light emitting device 78 and the light receiving device 76. Is characterized by.

According to a ninth aspect of the present invention, there is provided the start switch structure of the automatic door opening / closing device according to the third aspect of the present invention.
And, as shown in FIG. 10, the light shielding means 80 is a plate member 86 a and the plate member 8 which are arranged parallel to the side surface of the door 20.
6a, a first touch member 86A formed of an arm portion 86b formed substantially perpendicular to the plate 6a, a plate member 86a 'arranged parallel to the side surface of the door 20 and a plate member 86a' formed substantially perpendicular to the plate member 86a '. Second touch member 86B composed of an arm portion 86b ′, a shaft 84 for pivotally supporting the first touch member 86A and the second touch member 86B so as to be rotatable in a direction perpendicular to the moving direction of the door 20, and the shaft 84. A light blocking member 88 pivotally supported by 84 to block light from the light emitting device 78 and / or light to the light receiving device 76, and a first touch member 86A that rotates the light blocking member 88 by rotation. Link mechanism 86d,
88b and second link mechanisms 86d ', 88a for rotating the light blocking member 88 by rotating the second touch member 86B.
And consist of.

According to a tenth aspect of the present invention, there is provided a start switch structure for an automatic door opening / closing device, wherein the light shielding means 80 is arranged in parallel with the side surface of the door 20 as shown in FIG. 86a and a first touch member 86A composed of an arm portion 86b formed substantially perpendicular to the plate material 86a, and a plate material 86a ′ and a plate material 86a ′ arranged parallel to the side surface of the door 20. Second touch member 86 including vertically formed arm portion 86b '
B, first touch member 86A and second touch member 86B
84 pivotally supporting the door in a direction perpendicular to the moving direction of the door 20, a first rack 97A attached to the first touch member 86A, and a second rack attached to the second touch member 86B. 97B, a pinion 98 that meshes with the first rack 97A and the second rack 97B, and a light blocking member that blocks light from the light emitting device 78 and / or light to the light receiving device 76 by rotation of the pinion 98. And 88.

According to a third aspect of the present invention, there is provided a start switch structure for an automatic door opening / closing device, wherein the light shielding means 80 is arranged parallel to a side surface of the door 20 as shown in FIG. 1 plate material 86a and the first
The second plate member 86a ′, which is arranged on the side surface opposite to the plate member 86a, and is arranged parallel to the side surface, and the first plate member 86a and the second plate member 86a ′ are urged to the outside of the door 20. Biasing means 92, a first rack 97A attached to the first plate material 86a, a second rack 97B attached to the second plate material 86a ', the first rack 97A and the second rack 97A.
A pinion 98 that meshes with the rack 97B, and the pinion 9
And a light blocking member 94 for blocking the light from the light emitting device 78 and / or the light to the light receiving device 76 by the rotation of 8.

In the starting switch structure of the automatic door opening / closing device according to claim 12, in claim 3 or 4, the light shielding means 80 is arranged horizontally with respect to the side surface of the door 20 as shown in FIG. 13 (A). A first plate material 86a, a second plate material 86a 'arranged on a side surface opposite to the first plate material 86a, and arranged horizontally to the side surface;
Urging means 92 for urging the plate member 86a and the second plate member 86a 'to the outside, the first cam 95A attached to the first plate member 86a, and the second cam attached to the second plate member 86a'. 95B and a light blocking member 88 pivotally supported by the shaft 84 and swinging in a direction perpendicular to the moving direction of the door 20 to block light from the light emitting device 78 and / or light to the light receiving device 76. The first pin 9 that comes into contact with the first cam 95A.
6A and a second light blocking member 88 in which a second pin 96B that contacts the second cam 95B is arranged.

In the start switch structure of the automatic door opening / closing device according to claim 13, in claim 3 or 4, the light shielding means 80 is arranged parallel to the side surface of the door 20 as shown in FIG. 13 (B). Plate material 86a and the plate material 8
6a, a first touch member 86A composed of a rod 91A formed substantially perpendicular to the rod 6A and a pin 96C provided upright on the rod 91A, a plate member 86a 'and a plate member arranged parallel to the side surface of the door 20. A second touch member 86B including a rod 91B formed substantially perpendicular to 86a 'and a pin 96D provided upright on the rod 91B; and a shaft 84.
A light-blocking member 88 that is pivotally supported by the light-blocking member 88 and swings in a direction perpendicular to the moving direction of the door 20 to block light from the light-emitting device 78 and / or light to the light-receiving device 76; First pin 96A attached at a position above the shaft 84
The second pin 96B attached to the light shielding member 88 at a position below the shaft 84, and the long hole 99 in which the pin 96C of the first touch member 86A pivotally supported by the first pin 96A is loosely fitted.
It is characterized by comprising a first link 99A having a and a second link 99B having an elongated hole 99b pivotally supported by the second pin 96B and into which a pin 96D of the second touch member 86B is loosely fitted.

[0020]

In the start switch structure of the automatic door opening / closing device according to claim 1 configured as described above, the user blocks light from the side surface 20a of the door 20 toward the light receiving device 76. Alternatively, the user comes into contact with the light blocking means 80 from the other side surface 20b of the door 20, and the light blocking means 80 blocks the light to the light receiving device 76, so that the light receiving device 76 causes the opening / closing control device 50 to move. A signal for opening the door 20 is transmitted. The light-receiving device 76 also controls the opening / closing control device 50 while the user is passing through the door 20 and the light is blocked.
Continues to send a signal to open the door 20. In claim 1, the light emitting device 78 and the light receiving device 76 are both the door 20.
Since it is arranged on the side, wiring to the frame side is unnecessary.

Further, in the start switch structure of the automatic door opening / closing device according to the second aspect of the present invention, the power supply line 46 for supplying power from the opening / closing control device 50 to the movable element 44 of the coil movable linear motor 40 is supplied to the light emitting device 78. Power line 72 sending
And the signal line 74 that carries the signal from the light receiving device 76 are accommodated, so that the moving door 20 and the opening / closing control device 5
It is not necessary to pass lines to the light emitting device 78 and the light receiving device 76 between 0 and 0.

In the startup switch structure of the automatic door opening / closing device according to the third aspect of the invention configured as described above, the user comes into contact with the light shielding means 80, and the light shielding means 80 is used by the light shielding means 80.
The light receiving device 76 sends a signal for opening the door 20 to the opening / closing control device 50 by blocking the light to the device 6. The light receiving device 76 continues to send a signal for opening the door 20 to the opening / closing control device 50 while the user passes through the door 20 and the light is blocked. In the third aspect, since the light emitting device 78 and the light receiving device 76 are both arranged on the door 20 side, wiring to the frame side is unnecessary.

Further, in the start switch structure of the automatic door opening / closing device according to the present invention, the power supply line 46 for supplying power from the opening / closing control device 50 to the movable element 44 of the coil movable linear motor 40 is supplied with power to the light emitting device 78. Power line 72 sending
And the signal line 74 that carries the signal from the light receiving device 76 are accommodated, so that the moving door 20 and the opening / closing control device 5
It is not necessary to pass lines to the light emitting device 78 and the light receiving device 76 between 0 and 0.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a start switch structure in an automatic door opening / closing device according to a first embodiment of the present invention. This automatic door opening / closing device is made up of a wooden door 20 having a thickness for indoor use and a guide rail 30 for driving the door 20. The guide rail 30 is attached to an upper part of an indoor opening in an office or the like, It is designed to form an automatic door. FIG. 1 shows a state in which a cover (not shown) of the guide rail 30 is removed. Inside the guide rail 30, a coil movable linear motor 40 including a stator that drives the door 20 and a mover, and an opening / closing controller 50 that controls the coil movable linear motor 40 are arranged.
The open / close control device 50 is supplied with commercial power of 100 V from the outside through an electric wire 52.

FIG. 2 shows a cross section of the guide rail 30. A mover (to be described later) of the coil movable linear motor 40 arranged on the guide rail 30 has a connecting fitting 22 of the door 20 via a joint 34 made of a substantially rectangular rubber.
It is connected to the door 20 by being attached to the door 20 (see FIG. 1). As shown in FIG. 1, at the upper part of the door 20,
Further, a pair of roller support fittings 24, 24 are attached, and a roller 62 supported by the roller support fittings 24, 24 rolls on an inner rail 32 formed at the lower end of the guide rail 30 shown in FIG. By doing the door 20
Is slidably supported on the guide rail 30.

On the door 20, there is arranged a light ray switch 70 for irradiating a light ray to a reflector which will be described later and for receiving the light ray reflected by the reflector. In front of the light ray switch 70, there is a light ray switch 70. A light blocking device, which will be described later, that blocks light is arranged. Inside the door 20, a power line 72 for supplying electric power to the light beam switch 70 and a signal line 74 for carrying a signal from the light beam switch 70 are arranged.

FIG. 3 shows the internal structure of the movable coil linear motor 40 shown in FIG. A stator 42 and a mover 44 are arranged in the coil movable linear motor 40. The stator 42 includes a plurality of permanent magnets 4 having different polarities.
2a is arranged along the coil movable linear motor 40. On the other hand, the mover 44 is provided with three coils (not shown) and a Hall IC (not shown) that detects the polarity of the permanent magnet 42a. The mover 44 is connected to the opening / closing control device 50 side shown in FIG. 1 via a flat cable 46. The flat cable 46 includes a sensor line that carries a detection signal from the Hall IC, and the opening / closing control device 50 uses the flat cable 4 based on the detection signal from the Hall IC.
The three coils of the mover 44 are selectively excited via 6 to generate thrust between the stator 42 and the permanent magnet 42a of the stator 42 to drive the mover 44 in a desired direction. The flat cable 46 further accommodates a power line 72 for supplying electric power to the light beam switch 70 described above with reference to FIG. 1 and a signal line 74 for carrying a signal from the light beam switch 70. Power is supplied from the 50 side to the light beam switch 70, and an open signal of the door 20 is sent from the light beam switch 70 side to the opening / closing control device 50.

FIG. 4A shows the door 20 and the wall 64 that abuts when the door 20 is closed, as seen from the front side (entrance side), and FIG. 4B shows the door 20. Shows the state viewed from the back side (outside). On the other hand, FIG. 14 (A) shows the door 20 viewed from above. FIG. 5A shows a DD cross section of the light shielding device 80 shown in FIG.
4B shows the back surface of the light shielding device 80 shown in FIG. As shown in FIG. 5A, the light beam switch 70 is provided with a light receiving lens 76 for receiving the light beam and a light emitting lens 78 for irradiating the light beam. In front of the light switch 70 shown in FIG.
A display sticker 69 that says "is attached to the door 20.

On the other hand, the back side of the display seal 69, that is, the door 2
The light shielding device 80 shown in FIG. 5 is attached to the back surface 20b side of 0. The shading device 80 includes a frame body 82 for attachment to the door 20, a shaft 84, a touch member 86 pivotally supported by the shaft 84, and a shading lever 88 pivotally supported by the shaft 84 together with the touch member 86. And a spring 90 for urging the touch member 86 and the light blocking lever 88 counterclockwise. The touch member includes a touch plate 86a (indicated as “push” as shown in FIG. 4B) arranged parallel to the back surface 20b of the door 20 and an arm portion for holding the touch plate 86a. It consists of 86b. The light-shielding lever 88 is rocked together with the touch member 86 perpendicularly to the moving direction of the door 20, and is always housed in the door 20 by the biasing force of the spring 90. 8
When 6a is pushed, it projects from the door 20 and covers the light receiving lens 76 as shown by the chain double-dashed line in the figure. The shaft 84, the touch member 86, and the light blocking lever 8
8 is assembled to the frame body 82.

Next, the operation of the starting switch structure in the automatic door opening / closing apparatus according to the first embodiment of the present invention will be described. Electric power is sent to the light beam switch 70 shown in FIG. 4A from the opening / closing control device 50 shown in FIG. 1 through the flat cable 46 (see FIG. 3) and the power line 72, and the light emitting lens 78 (FIG. 5A). The light is emitted to the reflector 68 from the reference (reference). This light beam is reflected by the reflector 68 and enters the light receiving lens 76 (see FIG. 5A) of the light beam switch 70. In this state, the light switch 70 is
The state where the 0 open signal is not transmitted is maintained.

Here, the operator operates the front side of the door 20, that is,
When the display sticker 69 in which "Please touch your hand lightly" shown in FIG. 4 (A) is touched to open / close the door 20 from the entrance side, the light incident on the light receiving lens 76 of the light beam switch 70 is blocked. In response to this, the light beam switch 70
An open signal is sent to the opening / closing control device 50 (see FIG. 1) via the signal line 74 and the flat cable 46 (see FIG. 3). Upon receipt of this open signal, the opening / closing control device 50
Each coil of the mover 44 (see FIG. 3) of the movable coil linear motor 40 is sequentially excited via the flat cable 46. Thereby, the permanent magnet 4 of the coil and the stator 42 is
A thrust force is generated between the movable element 44 and the movable member 44 and the movable element 44 opens the door 20.

At this time, as long as the operator is located between the door 20 and the wall 64 shown in FIG. 4A, the light to the light receiving lens 76 is blocked and the light beam switch 70 is controlled to open and close. The sending of the open signal to the device 50 is continued. As a result, the opening / closing control device 50 waits with the door 20 open. When the operator passes through the door 20 and light is incident on the light receiving lens 76, the light beam switch 70 stops sending the open signal to the opening / closing control device 50. When the set time elapses after the stop of the open signal, the opening / closing control device 5
0 is again the mover 44 of the coil movable linear motor 40.
Each coil (see FIG. 3) is sequentially excited, and the mover 44 closes the door 20. Here, when the opening / closing control device 50 is closing the door 20, for example, when a person other than the operator blocks light to the light receiving lens 76 in order to pass through the door 20, the light beam switch 70 causes the opening / closing control device. Send an open signal to 50. In response to this, the opening / closing control device 50 reverses the moving direction and slides the door 20 in the opening direction.

Subsequently, the back surface 20b side of the door 20, that is,
The opening / closing operation of the door 20 from the exit side will be described. The touch panel 86 in which the operator writes "press" shown in FIG. 4 (B)
When a is pressed, the touch member 86 shown in FIG.
Is rotated clockwise as indicated by the chain double-dashed line. As a result, the light-shielding lever 88 moves the surface 20 of the door 20.
Projecting from a, the light receiving lens 76 of the light beam switch 70 is covered as shown by the chain double-dashed line, and the light incident on the light receiving lens 76 is blocked. In response to this, the light beam switch 70 sends an open signal to the open / close control device 50, and upon receipt of this open signal, the open / close control device 50 causes the coil movable linear motor 4 to move.
Drive 0 to open the door 20. Then, when the operator releases the touch plate 86a, the light shielding lever 88 is
It is rotated counterclockwise by the urging force of the spring 90,
The light switch 70 is pulled in from the surface 20a of the door 20.
Rays will be incident on the light receiving lens 76 of
The light beam switch 70 stops sending an open signal to the opening / closing control device 50.

In the first embodiment, the light switch 70 is provided on one side of the door 20, and the light switch 70 is mechanically operated from the opposite side of the door 20 by the light shielding device 80. Thereby, from the front surface 20a side of the door 20,
The door 20 can be opened by blocking the light beam of the light beam switch 70 with a hand or the like and operating the light beam switch 70. Further, from the opposite side of the door 20 (back surface 20b), the light switch 70 is operated by the light blocking device 80 to operate the door 20.
Can be opened.

Further, when the door 20 is open, if there is something that blocks the light from the light switch 70, the door 20 is always driven in the opening direction, so that a person can be caught by the door 20 even if no safety device is provided. There is no. Further, since the door 20 is opened by blocking the light beam of the light switch 70, unlike the conventional human body detection sensor, a malfunction that the door 20 is opened only by a person passing near the door 20 is eliminated. Furthermore, as shown in FIG. 14 (A), there is nothing protruding on the opposite side (back surface) 20b of the door 20.
Unlike the conventional touch switch shown in (B), the effective opening stroke L of the door 20 is not shortened by the touch switch (1 minute). In addition, in this first embodiment, FIG.
Since it is sufficient to dispose the light beam switch 70 on one side of the door 20 as shown in FIG. 14A, a comparison is made by disposing the light beam switch 70 on both of the doors 20 as in the conventional light beam switch shown in FIG. 14C. There is an advantage that it can be configured at a low price.

Further, in the starting switch structure of the automatic door opening / closing device of the first embodiment, the power line 72 to the light beam switch 70 and the signal line 74 from the light beam switch 70 are arranged in the door 20. In an office or the like, when the guide rail 30 is attached to the upper part of the opening in the room to form an automatic door, it is only necessary to attach the reflector 68 to the wall 64 side, and wiring to the wall 64 side is possible. It is unnecessary. In addition, in the first embodiment, the power line 72 and the signal line 74 to the light beam switch 70 are connected from the opening / closing control device 50 to the door 20.
To the side through a flat cable 46 for supplying power to the mover 44 of the coil movable linear motor 40,
Since it is not necessary to pass these lines to the side of the door 20 that moves from the opening / closing control device 50 by using a curl cord or the like, there is an advantage that high reliability can be achieved and the cost can be reduced.

Next, the starting switch structure in the automatic door opening / closing device according to the second embodiment of the present invention will be described. Here, in the second embodiment, the guide rails and the doors are almost the same as those in the first embodiment, so that the description thereof will be omitted and only the light shielding device will be shown and described. In addition,
The same reference numerals are used for the same members as in the first embodiment, and the description thereof will be omitted. FIG. 6B shows the back surface of the light shielding device 80 of the second embodiment, and FIG. 6A shows the BB cross section of FIG. 6B. The touch member 86 is composed of a touch plate 86a and a light shielding plate 86c, and by the compression spring 92,
It is urged to the right side in FIG. 6 (A). By pressing the touch plate 86a to the left side in the figure against the biasing force of the compression spring 92, the light shielding plate 86c projects from the door 20 and covers the light receiving lens 76 of the light beam switch 70 as shown by the chain double-dashed line. The light incident on the light receiving lens 76 is blocked. In response to this, the light beam switch 70 sends an open signal to the opening / closing control device 50, and the opening / closing control device 50 drives the coil movable linear motor 40 to open the door 20.

Next, the starting switch structure in the automatic door opening / closing device according to the third embodiment of the present invention will be described. In the above-described first and second embodiments, the surface 20 of the door 20
From the a side, cut off the light beam of the light beam switch 70 by hand,
Further, from the opposite side (back surface 20b) of the door 20, the light blocking device 80 is configured to operate the light beam switch 70, but in the third embodiment, the light blocking device 80 is used from both sides of the door 20. It is configured to operate the light beam switch 70. The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

FIG. 7B shows the back surface of the light shielding device 80 of the third embodiment, and FIG. 7A shows the CC cross section of FIG. 7B. The light shielding device 80 is a frame 8 for attachment to the door 20.
2, a shaft 84, and a touch member 86 pivotally supported by the shaft 84.
And a light-shielding lever 88 pivotally supported on the shaft 84 together with the touch member 86, and a spring 90 for urging the touch member 86 and the light-shielding lever 88 in the counterclockwise direction in FIG. 7A. The touch member 86 includes a touch plate 86a 'arranged in parallel with the back surface 20b of the door 20, a touch plate 86a arranged in parallel with the front surface 20a, and the touch plates 86a', 8 '.
It comprises an arm portion 86b for holding 6a. The light-blocking lever 88 is rocked together with the touch member 86 perpendicularly to the moving direction of the door 20, and is always housed in the door 20 by the biasing force of the spring 90.
When the touch plate 86a is pushed from the front surface 20a side of the door 20 or the touch plate 86a 'is pushed from the rear surface 20b side of the door 20, the touch plate 86a is projected from the door 20 to cover the light receiving lens 76. There is. In response to this, the light beam switch 70 sends an open signal to the opening / closing control device 50, and the opening / closing control device 50 opens the door 20. The third embodiment does not require the display sticker 69, unlike the first and second embodiments.

Next, the starting switch structure in the automatic door opening / closing device according to the fourth embodiment of the present invention will be described. FIG. 8B is a rear view of the light shielding device 80 of the fourth embodiment.
(A) shows the MM cross section of FIG. 8 (B). The touch member 86 includes the touch plate 86a ′ and the front surface 20 that are arranged in parallel with the back surface 20b of the door 20, as in the third embodiment.
The touch plate 86a is arranged in parallel with a, and the arm portion 86b for holding the touch plates 86a ′ and 86a is supported by the shaft 84. A light shielding plate 94 is attached to the lower side of the touch member 86 by a pin 96. The touch member 86 is biased in the counterclockwise direction in FIG.
Is housed in the door 20. Then, the light shielding plate 94
The touch plate 86a of the touch member 86 is pushed from the surface 20a side of the door 20, or the touch plate 8a
6a ′ is pushed from the back surface 20b side, so that the door 20
It projects from and covers the light receiving lens 76. In response to this, the light beam switch 70 sends an open signal to the opening / closing control device 50, and the opening / closing control device 50 opens the door 20.

Next, the starting switch structure in the automatic door opening / closing device according to the fifth embodiment of the present invention will be described. FIG. 9B shows the back surface of the light shielding device 80 according to the fifth embodiment.
FIG. 9A shows a vertical cross section taken along line EE of FIG. FIG.
0 (A) is a GG transverse sectional view of FIG. 9 (A), and FIG.
10B is a perspective view of the link mechanism, and FIG. 10C is a view taken in the direction of arrow K in FIG. 10B. In the third embodiment with reference to FIG. 7 and the fourth embodiment with reference to FIG.
0a touch plate 86a and back surface 20b touch plate 86
The fifth embodiment is configured so that the touch plate on the opposite side does not move even if the touch plate on the one side is operated, while the a'and the a'are interlocked.

The shading device 80 includes a frame body 82 for attachment to the door 20, a shaft 84, a first touch member 86A pivotally supported by the shaft 84, and a second touch pivotally supported by the shaft 84. It comprises a member 86B, a light-shielding lever 88 pivotally supported by a shaft 84, and a spring 90 for biasing the light-shielding lever 88 in the counterclockwise direction in FIG. 9A. The first touch member 86A is
The door 20 includes a touch plate 86a arranged in parallel with the surface 20a of the door 20 and an arm portion 86b for holding the touch plate 86a. Similarly, the second touch member 86B is provided on the back surface 2 of the door 20.
0b and a touch plate 86a ′ arranged in parallel with 0b and the touch plate 8a
6a 'and an arm portion 86b' for holding 6a '. The light blocking lever 88 is swung perpendicularly to the moving direction of the door 20, and is always housed in the door 20 by the biasing force of the spring 90.

FIG. 10B shows the first touch member 86A.
Arm portion 86b of the second touch member 86B and the arm portion 86b of the second touch member 86B.
The link mechanism between b ′ and the light-shielding lever 88 is shown.
FIG. 10C shows the K arrow view of each member.
Half-moon shaped half-moon projections 88a and 88b are provided on both sides of the pivot end of the light-shielding lever 88, and the upper end 88c of the half-moon projection 88a and the lower end 88d of the half-moon projection 88b are arranged in parallel. It is set up. On the other hand, the light-shielding lever 88 is attached to the pivotally supported end of the arm portion 86b of the first touch member 86A.
A projection 86d is formed opposite to the meniscus projection 88b, and the projection 86d is cut obliquely. Similarly, a protrusion 86d ′ facing the half-moon protrusion 88a of the light-shielding lever 88 is provided at the pivotal support end of the arm portion 86b ′ of the second touch member 86B.
Is formed, and the protrusion 86d 'is obliquely cut. In addition, as shown in the figure, the first and second touch members 86
The reason why the entire shaft supporting ends of the arm portions 86b and 86b 'of A and 86B are obliquely cut is to facilitate the assembling to the shaft 84. The upper end portion 86e of the protrusion 86d of the arm portion 86b and the lower end portion 8 of the half-moon protrusion 88b of the light blocking lever 88.
8d is arranged so as to abut without touching the touch plate 86a, and similarly, the protrusion 86 of the arm portion 86b ′ is provided.
The lower end portion 86e 'of d'and the half-moon projection 8 of the light-shielding lever 88.
The upper end portion 88c of 8a is arranged so as to abut on the touch plate 86a 'without pushing it.

Here, the surface 2 of the door 20 shown in FIG.
When the touch plate 86a on the 0a side is pressed, the arm portion 86b shown in FIG. 10 (B) rotates in the clockwise direction in the figure, and the arm portion 8b is rotated.
The light-shielding lever 88 that is in contact with the upper end portion 86e of the protrusion 86d of 6b and the lower end portion 88d of the meniscus protrusion 88b is interlocked clockwise, and the light-shielding lever 88 shown in FIG.
It projects from the door 20 against the biasing force of the spring 90 and covers the light receiving lens 76. In response to this, the light switch 70
Sends an open signal to the opening / closing control device 50, and the opening / closing control device 50 opens the door 20. When the light blocking lever 88 is rotated clockwise, the lower end 86e 'of the protrusion 86d' is obliquely cut in the arm 86b 'of the touch plate 86a' on the back surface 20b side. 88 meniscus 88
The upper end 88c of a goes away. Therefore, the touch plate 86a 'on the back surface 20b side does not move. After that, when the hand is released from the touch plate 86a on the front surface 20a side, the light shielding lever 88 is housed in the door 20 by the biasing force of the spring 90, and the touch plate 86a returns to the original position.
Similarly, when the touch plate 86a ′ on the back surface 20b side is pressed, the arm portion 86b ′ shown in FIG. 10 (B) rotates clockwise in the figure, and the lower end portion of the protrusion 86d ′ of the arm portion 86b ′ is rotated. 8
6e 'and the light-shielding lever 88 that is in contact with the upper end portion 88c of the meniscus protrusion 88a are interlocked in the clockwise direction, and the light-shielding lever 88 covers the light receiving lens 76. At this time, the surface 20a
The touch plate 86a on the side does not move.

Next, the starting switch structure in the automatic door opening / closing device according to the sixth embodiment of the present invention will be described. FIG. 11B is a rear view of the light shielding device 80 according to the sixth embodiment.
1 (A) shows a cross section taken along line I-I of FIG. 11 (B). In the third to fifth embodiments, the height of the touch plate 86a on the front surface 20a of the door 20 and the height of the touch plate 86a 'on the rear surface 20b are different, whereas in the sixth embodiment, the front surface 20a is different.
a touch plate 86a and a back face 20b touch plate 86a '
And are configured to be at the same height. Further, in the sixth embodiment, the light beam switch 70 is embedded in the door 20, and correspondingly, a recess is formed in the door 20 so as to allow the light rays to pass through the light receiving lens 76 and the light emitting lens 78. 20c is formed.

The shading device 80 includes a frame body 82 for mounting on the door 20, a shaft 84, a first touch member 86A pivotally supported by the shaft 84, and a second touch pivotally supported by the shaft 84. The first member attached to the member 86B and the first touch member 86A
The rack 97A includes a second rack 97B attached to the second touch member 86B, a pinion 98 that meshes with the first rack 97A and the second rack 97B, and a light-shielding lever 88 that interlocks with the pinion 98. . The first
The touch member 86A includes a touch plate 86a arranged in parallel with the surface 20a of the door 20 and an arm portion 86b for holding the touch plate 86a. Similarly, the second touch member 86
B is a touch plate 8 arranged in parallel with the back surface 20b of the door 20.
6a 'and the arm portion 86 for holding the touch plate 86a'
b '.

When the touch plate 86a on the surface 20a side of the door 20 shown in FIG. 11A is pushed, the first touch member 86A is rotated counterclockwise in the figure. With the rotation of the first touch member 86A, the rack 97A moves to the right, and the pinion 98 meshed with the rack 97A.
Rotates clockwise, and the light-shielding lever 88 is moved to the light-receiving lens 76.
Move to the front. In response to this, the light switch 7
0 sends an open signal to the opening / closing controller 50, and the opening / closing controller 50 opens the door 20. Similarly, when the touch plate 86a ′ on the back surface 20b side of the door 20 is pressed, the second touch member 86 is pressed.
B is rotated counterclockwise in the figure. With the rotation of the second touch member 86B, the rack 97B moves leftward, the pinion 98 meshing with the rack 97B rotates clockwise, and the light blocking lever 88 covers the light receiving lens 76.

Next, the starting switch structure in the automatic door opening / closing device according to the seventh embodiment of the present invention will be described. FIG. 12B is a rear view of the light shielding device 80 of the seventh embodiment, and FIG.
2 (A) shows a JJ cross section of FIG. 12 (B). In the seventh embodiment, similarly to the sixth embodiment described above, the touch plate 86a on the front surface 20a and the touch plate 86 on the rear surface 20b are provided.
a'and the same height.

The light shielding device 80 includes a frame 82 for mounting on the door 20 and a first touch member 8 including a touch plate 86a.
Second touch member 86 including 6A and touch plate 86a '
B, the first touch member 86A and the second touch member 86
A compression spring 92 for urging B toward the outside; a first rack 97A attached to the first touch member 86A;
The second rack 97B attached to the touch member 86B
A pinion 98 that meshes with the first rack 97A and the second rack 97B, and a link plate 9 that interlocks with the pinion 98.
9 and a light shielding plate 9 pivotally supported by a pin 96 on the link plate 99
And 4.

Here, when the touch plate 86a on the front surface 20a side of the door 20 shown in FIG.
Moves to the right, the pinion 98 meshing with the rack 97A is rotated clockwise, and the link plate 99 moves to the left accordingly, and the light shield plate 94 is projected from the door 20 to switch the light beam. The light receiving lens 76 of 70 is covered. In response to this, the light beam switch 70 sends an open signal to the opening / closing control device 50, and the opening / closing control device 50 opens the door 20. After that, when the hand is released from the touch plate 86a on the surface 20a side, the surface 20 is pressed by the urging force of the compression spring 92.
The a-side touch plate 86a returns to the original position, and the light shielding plate 94 is housed in the door 20. Similarly, when the touch plate 86a ′ on the rear surface 20b side of the door 20 is pressed, the rack 97
B moves to the left, the pinion 98 meshing with the rack 97B rotates clockwise, and the light blocking plate 94 covers the light receiving lens 76.

Next, the starting switch structure in the automatic door opening / closing device according to the eighth embodiment of the present invention will be described. FIG. 13A shows a vertical cross section of the light shielding device 80 of the eighth embodiment. In the eighth embodiment, similarly to the sixth embodiment described above with reference to FIG. 11 and the seventh embodiment described above with reference to FIG. 12, the front touch plate 86a and the back touch plate 86a ′ are included. And are configured to be at the same height. Here, in the sixth and seventh embodiments, the touch plate 86a on the front surface 20a of the door 20 and the touch plate 86a 'on the rear surface 20b are interlocked with each other, whereas in the eighth embodiment, Even if the touch plate is operated, the touch plate on the opposite side does not move.

In the eighth embodiment, the first touch member 86
A first cam plate 95A is attached to A, and a second cam plate 95B is attached to the second touch member 86B.
The tips of the cam plate 95A and the second cam plate 95B are obliquely cut to form a cam surface. The light-shielding lever 88 is provided with pins 96A and 96B that abut on the cam surfaces of the first cam plate 95A and the second cam plate 95B. Here, when the touch plate 86a on the left side in the drawing is pressed, the cam plate 95A moves to the right, and the light shield lever 88 is rotated clockwise by the pin 96A that is in contact with the cam surface of the cam plate 95A. It moves and projects from the door 20 to cover the light receiving lens 76 of the light beam switch 70. At this time, the other pin 96B of the light blocking lever 88 moves in the direction away from the cam surface of the second cam plate 95B, and therefore the touch plate 86a 'on the right side in the drawing does not move.

Next, the starting switch structure in the automatic door opening / closing device according to the ninth embodiment of the present invention will be described. FIG. 13B shows a vertical cross section of the light shielding device of the ninth embodiment. In the ninth embodiment, similarly to the above-described eighth embodiment, even if the touch plate on one side is operated, the touch plate on the other side does not move.

In the ninth embodiment, the first touch member 86
A rod 91A is projectingly provided on A, and a pin 96C is erected on the rod 91A. Similarly, the second touch member 8 is provided.
6B is provided with a rod 91B protruding therefrom, and a pin 96D is provided upright on the rod 91B. On the other hand, a disc 93 is attached to the light-shielding lever 88 pivotally supported by the shaft 84, and a pin 96 is provided above the shaft 84 of the disc 93.
A, and a pin 96B is erected at a position below the shaft 84. A first link plate 99A is pivotally supported by the pin 96A, and a long hole 99a formed in the first link plate 99A,
The pin 96C on the first touch member 86A side is loosely fitted. Similarly, the pin 96B below the disk 93 has a second
A link plate 99B is pivotally supported, and a pin 96D on the second touch member 86B side is loosely fitted in an elongated hole 99b formed in the second link plate 99B.

Here, when the left touch plate 86a in the figure is pushed, the rod 91A moves to the right and the rod 91A moves.
The link plate 99A is pushed to the right by the pin 96C erected on A, and the disc 93 is rotated clockwise. As a result, the light blocking lever 88 rotates in the clockwise direction and projects from the door 20 to cover the light receiving lens 76 of the light beam switch 70. By rotating the disk 93 in the clockwise direction, the link plate 99B is pulled to the left, but the other pin 96D of the touch plate 86a 'on the right side in the figure slides in the elongated hole 99b of the link plate 99B. Since it goes, the touch plate 86a 'does not move.

In the embodiment described above, the example in which the door 20 is driven by the coil movable linear motor 40 disposed in the guide rail 30 has been described, but the present invention uses a rotary motor in the guide rail 30. In this case, it can be preferably used. However, when the rotary motor is used, it is necessary to pass a signal line from the opening / closing control device 50 to the light beam switch 70 arranged on the door 20 by a curl cord or the like. Further, in the above-described embodiment, the light emitting lens 78
Although the example of using the light beam switch 70 that irradiates light from the light receiving lens 76 and receives the light from the light receiving lens 76 has been described, the present invention is not limited to the door 2
It is also possible to separately arrange the light emitting device and the light receiving device on the 0 side. Further, in the above-mentioned embodiment, the automatic door opening / closing device of the pulling door is described as an example, but the present invention can be applied to the automatic door opening / closing device of both references. Further, in the above-described embodiment, the light blocking lever 88 or the light blocking plate 95 is the light receiving lens 7
Although 6 is blocked, the light blocking lever 88 or the like may be configured to block the light emitting lens 78 side or both the light receiving lens 76 and the light emitting lens 78.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an automatic door opening / closing device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a guide rail of the automatic door opening / closing device shown in FIG.

3 is a perspective view showing a configuration of a coil movable linear motor arranged in the guide rail shown in FIG. 2. FIG.

FIG. 4 is a perspective view showing a front surface and a back surface of the door of the first embodiment.

5A and 5B show the light shielding device of the first embodiment, FIG. 5B is a rear view of the light shielding device, and FIG. 5A is D of FIG. 5B.
It is a -D sectional view.

FIG. 6 shows a shading device of a second embodiment, FIG. 6 (B) is a rear view of the shading device, and FIG. 6 (A) is B of FIG. 6 (B).
It is a -B sectional view.

7A and 7B show a light shielding device of a third embodiment, FIG. 7B is a rear view of the light shielding device, and FIG. 7A is C of FIG. 7B.
FIG.

FIG. 8 shows a shading device of a fourth embodiment, FIG. 8 (B) is a rear view of the shading device, and FIG. 8 (A) is an M of FIG. 8 (B).
FIG.

FIG. 9 shows a shading device of a fifth embodiment, FIG. 9 (B) is a rear view of the shading device, and FIG. 9 (A) is an E of FIG. 9 (B).
It is a -E sectional view.

FIG. 10 shows a light shielding device of a fifth embodiment, and FIG.
10 is a sectional view taken along line GG of FIG. 9 (A), FIG. 10 (B) is a perspective view of the link mechanism shown in FIG. 10 (A), and FIG.
FIG. 10C is a view on arrow K in FIG.

FIG. 11 shows a light shielding device of a sixth embodiment, and FIG.
11A is a rear view of the light shielding device, and FIG.
It is an II sectional view of (B).

FIG. 12 shows a light shielding device of a seventh embodiment, and FIG.
12A is a rear view of the light shielding device, and FIG.
It is a JJ sectional view of (B).

13 shows a light-shielding device of eighth and ninth embodiments, and FIG.
13A is a cross-sectional view of the light shielding device of the eighth embodiment, and FIG.
FIG. 9B is a sectional view of the light shielding device of the ninth embodiment.

FIG. 14 is a plan view of the automatic door opening / closing device according to the first embodiment of the present invention and an automatic door opening / closing device according to the related art, and FIG.
Shows the one according to the first embodiment, FIG. 14 (B) shows the one by the touch switch, and FIG. 14 (C) shows the one by the light beam switch.

[Explanation of symbols]

 20 Door 30 Guide rail 40 Coil movable type linear motor 50 Opening / closing control device 68 Reflector 70 Light switch 76 Light receiving lens 78 Light emitting lens 80 Light blocking device 86 Touch member 88 Light blocking lever

Claims (13)

[Claims] 1. A guide rail horizontally installed above the entrance, a door suspended slidably on the guide rail, a motor arranged on the guide rail for driving the door, and the motor. It is a start switch structure in an automatic door opening and closing device comprising an opening and closing control device arranged on the guide rail for controlling the opening and closing of the door, wherein the reflection is arranged on the frame side located in the direction in which the door is closed. And a light-emitting device that is disposed on one side surface of the door and emits light to the reflector, and a light-receiving device that is disposed on the one side surface of the door and receives light from the reflector. When the received light is blocked, a light receiving device that sends a signal for opening the door to the opening / closing control device and the user from the other side surface side of the door contact the light from the light emitting device, or / And to the light receiving device Start switch structure of an automatic door opening and closing apparatus characterized in that it consists of a light blocking means for blocking the light to the mechanical,. 2. The motor is a coil movable linear motor including a stator and a mover, the stator is arranged along the guide rail, and power is supplied from the opening / closing control device through a power supply line. The mover moves through the door, and the power supply line accommodates a power line for sending power to the light emitting device and a signal line for carrying a signal from the light receiving device. The start switch structure in the automatic door opening / closing device according to claim 1. 3. A guide rail that is horizontally installed above the entrance, a door that is slidably suspended on the guide rail, a motor that is mounted on the guide rail that drives the door, and the motor. It is a start switch structure in an automatic door opening and closing device comprising an opening and closing control device arranged on the guide rail for controlling the opening and closing of the door, wherein the reflection is arranged on the frame side located in the direction in which the door is closed. And a light emitting device that is arranged on the door and irradiates the reflector with light, and a light receiving device that is arranged on the door and receives light from the reflector, and the received light is blocked, A light receiving device that sends a signal for opening the door to the opening / closing control device, and a user's contact from both side surfaces of the door causes light from the light emitting device and / or light to the light receiving device to be mechanically operated. Light-blocking means Start switch structure of an automatic door opening and closing apparatus characterized by comprising. 4. The coil movable type linear motor, wherein the motor comprises a stator and a mover, the stator is arranged along the guide rail, and power is supplied from the opening / closing control device through a power supply line. The mover moves through the door, and the power supply line accommodates a power line for sending power to the light emitting device and a signal line for carrying a signal from the light receiving device. The starting switch structure in the automatic door opening / closing device according to claim 3. 5. The touch member, wherein the light shielding means is composed of a plate member arranged in parallel with a side surface of the door and an arm portion formed substantially perpendicular to the plate member, and fixed to the touch member, From a light-blocking member that blocks light from the light-emitting device and / or light to the light-receiving device, and a shaft that pivotally supports the touch member and the light-blocking member so as to be rotatable in a direction perpendicular to the moving direction of the door. The starting switch structure in the automatic door opening / closing device according to claim 1 or 2. 6. The light shielding means is a plate member arranged parallel to the side surface of the door, and a light shield fixed to the plate member for shielding light from the light emitting device and / or light to the light receiving device. 3. The start switch structure for an automatic door opening / closing device according to claim 1, further comprising: a member; and a biasing unit that biases the plate member and the light shielding member in a direction away from the light emitting device and the light receiving device. 7. The light shielding means comprises a touch member including a pair of plate members arranged in parallel with a side surface of the door and an arm portion fixing both plate members, and a touch member fixed to the touch member to prevent light from the light emitting device. A light-shielding member that shields light and / or light to the light-receiving device, and a shaft that pivotally supports the touch member and the light-shielding member so as to be rotatable in a direction perpendicular to the moving direction of the door. The start switch structure in the automatic door opening / closing device according to claim 3 or 4. 8. The touch member, wherein the light shielding means is composed of a pair of plate members arranged parallel to the side surface of the door and an arm portion fixing both plate members, and a light from the light emitting device attached to the touch member. And / or a light blocking member that blocks light to the light receiving device, a shaft that pivotally pivots the touch member in a direction perpendicular to the moving direction of the door, and the light blocking member that serves as the light emitting device and the light receiving device. The starting switch structure in the automatic door opening / closing device according to claim 3 or 4, further comprising: a biasing unit that biases the device in a direction away from the device. 9. The light-shielding means comprises a plate member arranged in parallel with a side surface of the door and a first touch member including an arm portion formed substantially perpendicular to the plate member, and a side surface of the door. A second touch member including a plate member arranged in parallel and an arm portion formed substantially perpendicular to the plate member, and a first touch member and a second touch member are rotated in a direction perpendicular to the moving direction of the door. A shaft pivotably supported, a light blocking member pivotally supported by the shaft to block light from the light emitting device and / or light to the light receiving device, and the first touch member is rotated to rotate the light blocking member. The start switch structure in the automatic door opening / closing device according to claim 3 or 4, comprising: a first link mechanism that moves and a second link mechanism that rotates the light blocking member by rotation of a second touch member. . 10. A first touch member comprising the plate member arranged parallel to a side surface of the door and an arm portion formed substantially perpendicular to the plate member, and the side surface of the door. A second touch member including a horizontally arranged plate member and an arm portion formed substantially vertically to the plate member, and a first touch member and a second touch member are rotated in a direction perpendicular to a moving direction of the door. A shaft pivotably supported, a first rack attached to the first touch member, a second rack attached to the second touch member, a pinion meshing with the first rack and the second rack, and the pinion. 5. The start switch structure in the automatic door opening / closing device according to claim 3, further comprising: a light blocking member that blocks the light from the light emitting device and / or the light to the light receiving device by the rotation of. 11. The light shielding means is arranged on a first plate member arranged in parallel with a side surface of a door and a side surface opposite to the first plate member, and arranged in parallel with the side surface. A second plate member, an urging means for urging the first plate member and the second plate member to the outside of the door, a first rack attached to the first plate member, and a second plate member A second rack, a pinion that meshes with the first rack and the second rack, and a light blocking member that blocks light from the light emitting device and / or light to the light receiving device by rotation of the pinion. The start switch structure in the automatic door opening / closing device according to claim 3 or 4. 12. The light shielding means is arranged on a first plate member arranged in parallel with a side surface of a door and a side surface opposite to the first plate member, and arranged in parallel with the side surface. Second plate member, an urging unit that urges the first plate member and the second plate member to the outside, a first cam attached to the first plate member, and a second cam attached to the second plate member. A cam and a light-shielding member that is pivotally supported by a shaft and swings in a direction perpendicular to the moving direction of the door to block light from the light emitting device and / or light to the light receiving device, the first cam being 5. A start switch structure in an automatic door opening / closing device according to claim 3, further comprising: a light blocking member on which a first pin that abuts and a second pin that abuts on a second cam are arranged. 13. The first light shielding means comprises a plate member arranged parallel to one side surface of the door, a rod formed substantially perpendicular to the plate member, and a pin erected on the rod. A touch member, a plate member arranged parallel to the other side surface of the door, a second touch member composed of a rod formed substantially perpendicular to the plate member, and a pin erected on the rod; A light blocking member that is pivotally supported and swings in a direction perpendicular to the moving direction of the door to block light from the light emitting device and / or light to the light receiving device, and a position above the shaft of the light blocking member. A first pin having a first pin attached thereto, a second pin attached to the light shielding member at a position below the shaft, and an elongated hole pivotally supported by the first pin and into which the pin of the first touch member is loosely fitted. The link and the pin of the second touch member pivotally supported by the second pin are loosely fitted. 5. A start switch structure for an automatic door opening / closing device according to claim 3, further comprising a second link having a long hole.