JPH0734756A - Automatic door device - Google Patents

Abstract

PURPOSE:To enable the physically handicapped to use a toilet, etc., safely by outputting an opening command prior to a closing command from a control section by detection of an optical safety sensor provided in the vicinity of an automatic door device, and becoming effective until a door is fully closed. CONSTITUTION:When the physically handicapped using a wheelchair pushes an opening push-button 14 on a passage side to open a door 15 and enters the inside of a room to push a closing push button 11 on the side of the inside of the room to close the door 15, even if part of the wheelchair is in a closing position of the door 15, a foreign matter detecting signal is transmitted from an optical safety sensor 19 even if the opening push bottoms 12 and 14 of an opening and closing operating section 22 are not pushed, and the door 15 is opened and driven to make no contact with the wheelchair. After that, when a latch 21 is latched after the door is in the fully closed position, a lock signal is inputted, an opening signal of the opening and closing operating section 22 becomes ineffective until the latch 22 is unlatched, and another person is not entered. Then, the latch 21 is unlatched, the opening push button 12 is pushed to open the door 15, and when a closing push button 13 is pushed to close the door 15, the door 15 is opened and driven to make no contact with the wheelchair. When the wheelchair goes out, the door 15 is in the fully closed position to close the door automatically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an automatic door device provided in a building or a vehicle toilet used by a physically handicapped person.

[0002]

2. Description of the Related Art As a conventional automatic door device of this type, there is one described in a book "Living Space for Persons with Disabilities" (page 44) issued by the Japan Rehabilitation for Persons with Disabilities Association.
As shown in FIG. 4, the structure is such that the door 1 which is a top-hanging electric sliding door is provided with an inward opening button 2a of an inner operation panel 2 provided on the indoor side.
Inner close button 2b, outer open button 3 of outer operation panel 3 provided outside the room
There is one that is operated by a and the outer close button 3b. In the figure, 4 is an in-use lamp, 5 is an emergency switch, 6 is a lock confirmation lamp, and 7 is an operation method nameplate. When the user presses the inner close button 2b of the inner operation panel 2, the door 1
Is closed and the in-use lamp 4 is turned on, the electromagnetic lock is applied, and the lock confirmation lamp 6 is turned on. Even if the open button 3a is pressed while the in-use lamp 4 is turned on, the door 1 Does not open, but it opens when the inner open button 2a is pressed. When the emergency switch 5 is turned off, the electromagnetic lock is released and the door 1 can be manually opened. Further, when the outer close button 3b is forgotten to be pressed, the time switch automatically closes it.

[0003]

In the conventional automatic door device described above, for example, a person using a wheelchair pushes the outer open button 3a to open the door 1, enters the room, and pushes the inner close button 2b to open the door 1.
It is extremely dangerous because the door 1 comes into contact with the wheelchair when a part of the wheelchair cannot be fully entered when closing the door. Of course, a means for detecting that the door 1 has come into contact with something and retracting it in the opening direction is well known in door devices of vehicles and elevators, but the contact may cause a hazard to a physically handicapped person. Because. It is an object of the present invention to provide an automatic door device that can be used safely by a physically handicapped person.

[0004]

Means for Solving the Problems The means of the present invention is an automatic door apparatus in which a control section controls opening and closing of a door by an open signal and a close signal by operation of an opening and closing operation section provided inside and outside the door, respectively. An optical safety sensor having a detection area is provided in the vicinity of the door, and the control unit detects the optical safety sensor and opens the door prior to the closing command by the closing signal of the closing operation unit during the detection period. Output a priority open command,
It is characterized in that the priority opening command is made effective only after the closing operation portion is operated until the door is fully closed. Further, in the means, the closing command by the closing operation unit is held even during the priority opening command output period by the optical safety sensor, and the door is closed after the priority opening command disappears by the closing command. Good to do.

[0005]

According to the above means, when the user operates the opening operation portion from the outside or inside of the door to open the door, enters or exits through the opened position of the door, and operates the closing operation portion. If a part of the wheelchair is still in the position where the door closes, or if a part of the wheelchair enters the position where the door closes after operating the closing operation part, Since the safety sensor detects a part of the wheelchair, the priority opening command is output during the detection period prior to the closing command from the closing operation unit operated earlier, so the door is not closed. Therefore,
The door does not close while the optical safety sensor detects it, so the door does not touch the wheelchair. Further, the closing command by the closing operation unit is held even during the priority opening command output period by the optical safety sensor, and if the door is closed after the priority opening command by the optical safety sensor disappears, again, Even if you do not operate the closing operation part, if you move the position of the wheelchair outside the sensing area of the optical safety sensor, that is, to a position outside the position where the door closes, the priority opening command disappears and it is held. The door is closed by the closing command.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. This embodiment is an automatic door device provided in a vehicle such as a long-distance train for a physically handicapped person between a toilet room and an aisle. As shown in FIG. 1, this automatic door device includes a closing push button 11 as a closing operation part and an opening push button 12 as an opening operation part provided on the indoor side, and a closing push button as a closing operation part provided on the aisle side. 13 and an open push button 14 as an opening operation part, and a light emitting part 16 having an appropriate height close to the inner surface of the door 15 in the closed position.
And a light safety sensor 19 having a foreign matter detection area formed by the light beam 18 formed by the light receiving portion 17, a door driving device and a control portion which do not appear in FIG. Door drive
It is a top-hanging electric sliding door type, and the door 15 can be moved to the fully closed position shown by the solid line in the drawing and the fully opened position shown in the door bag 20 by an imaginary line by an electric command. The control unit is composed of a microcomputer. In FIG. 1, reference numeral 21 is a manually operated latch, and when it is in a locked state, an internal micro switch is turned on to issue a lock detection signal.

A block diagram of the structure of this automatic door apparatus is as shown in FIG. That is, it is configured by an indoor / outdoor opening / closing operation unit 22 including push buttons 11 to 14, an optical safety sensor 19, a lock detection unit 23, a control unit 24, and a door driving device 25. When the push buttons 11 to 14 are operated, an open signal and a close signal corresponding to the push buttons 11 to 14 are output to the control unit 24, and the control unit 24 outputs an open command and a close command corresponding to the signals to the door driving device 25 to output the door 15 to the door 15. Open and close. When the light beam 18 is blocked, the optical safety sensor 19 outputs a foreign matter detection signal to the control unit 24, which causes the control unit 24 to output a priority opening command to the door driving device 25 to open the door. However, this priority opening command is output only after the closing signal is input from the opening / closing operation unit 22 until the door 15 is closed, and has priority over the closing command by the closing signal. Is output. Further, the closing command by the closing signal is held in the control unit 24 while the priority opening command is output, and is output to the door driving device 25 when the foreign object detection signal disappears to close the door. The lock detection unit 23 outputs a lock detection signal to the control unit 24 when the latch 21 is applied. As a result, the control unit 24 invalidates the open / close signal from the open / close operation unit 22 during the lock. Further, after the door 15 reaches the fully open position, the built-in timer closes the door after 60 seconds.

This automatic door device operates as shown by the flow chart in FIG. 3 in the state of normal automatic opening and closing by the control unit 24. That is, it is determined whether or not the door 15 is in the fully closed position in step S1 and is locked in the next step S2. If the lock detection signal is output from the lock detection unit 23 and the lock is being performed, the process proceeds to step S4, and if not, the process proceeds to step S3. In step S3, it is determined whether or not the open signal is input from the opening / closing operation section 22, and if there is no input, the process proceeds to step S4 to keep the door 15 closed, and the process returns to step S2. If there is an input, the process proceeds to step S5. To output an opening command to cause the door driving device 25 to perform an opening operation, and the process proceeds to step S6.

In step S6, the door 15 is opened to the fully open position, and the process proceeds to step S7. In step S7, it is determined whether the closing command is being held or the closing signal is being input from the opening / closing operation section 22. If the closing command is not being held and there is no input, the process proceeds to step S8 and 60 seconds have passed since the fully opened position It is determined whether or not the door 1 is opened in step S9 while the time has not elapsed.
5 is held open, and the process returns to step S7. 6 in step S8
When it is determined that 0 seconds have elapsed, the process proceeds to step S10 to cancel the open hold, and the process proceeds to step S11 to output the close command. If the closing command is being held or the closing signal is input in step S7, the process proceeds to step S11 to output the closing command, and the process proceeds to step S12 to close the door driving device 25. The process proceeds from step S12 to step S13, and it is determined whether or not the open signal is input from the opening / closing operation section 22. If there is an input, the process proceeds to step S14 to output an open command, and the process proceeds to step S15 to move the door driving device 25 is opened, and the process returns to step S6. If there is no open signal input in step S13, the process proceeds to step S16 to determine whether or not the foreign substance detection signal is input from the optical safety sensor 19, and if there is an input, the process proceeds to step S17 to hold the close command and open. A command is output, and the process returns to step S6 through step S15. The open command in step S17 is a priority open command.
If there is no input in step S16, the process proceeds to step S18 to determine whether or not the door 15 is in the fully closed position. If it is not the fully closed position, the process returns to step S11, and if the fully closed position, the process returns to step S1. Then, the same operation as described above is repeated.

Because of such operation, a physically handicapped person using a wheelchair pushes the opening push button 14 on the aisle side to open the door 15, enters the room, and pushes the closing push button 11 on the room side to push the door 15 Is closed, that is, step S11 through step S12, step S13 and step S1.
If a part of the wheelchair is in a position where the door 15 is closed when shifting to 6, the open push button 12 of the opening / closing operation unit 22,
Alternatively, a foreign matter detection signal is emitted from the optical safety sensor 19 without pressing 14 and steps S16 to S17.
Therefore, the door that has been driven to be closed is now driven to be opened, and the door 15 does not come into contact with the wheelchair. When the wheelchair completely enters the room, the foreign matter detection signal disappears, and therefore the process proceeds from step S16 to step S18, and the door 15 is at the fully closed position unless the open signal and the foreign matter detection signal are input.

Since the lock signal is input when the latch 21 is applied after the fully closed position, the open signal of the opening / closing operation portion 22 is invalid until the latch 21 is removed by circulating the loop from step S2 to step S4 and step S2. Will not allow others to enter. When the latch 21 is removed, the door 15 is opened by pressing the open push button on the indoor side, and when the door is pushed out and the close push button 13 is pressed to close the door, assuming that a part of the wheelchair is in a position where the door 15 is closing, enter. Similarly to the case, even if the open push button 12 or 14 of the opening / closing operation unit 22 is not pressed, the foreign matter detection signal is issued from the optical safety sensor 19 and the process proceeds from step S16 to step S17. The door 15 will not come into contact with the wheelchair. When the wheelchair is completely out of the room, the foreign matter detection signal disappears, so the process proceeds from step S16 to step S18, and the door 15 is in the fully closed position unless the open signal and the foreign matter detection signal are input. Further, when the close push button 13 is not pushed after going out, the door 15 is automatically closed after 60 seconds have passed.

In the above embodiment, a plurality of optical safety sensors may be provided if necessary, and a foreign substance detection signal may be output to the control unit when any one of them detects a foreign substance.

[0013]

As described above, according to the present invention, even when a person with a physical disability pushes the closing push button and a foreign object such as a wheelchair is in the path of closing the door, the door is in the open position and the wheelchair is opened. Because there is no contact with the wheelchair, the effect of being safe, and when the wheelchair goes out of the door closing path,
Since pressing the close push button first is effective and the door closes,
There is no need to press the close push button again, which is convenient.

[Brief description of drawings]

FIG. 1 shows a schematic configuration of one embodiment of the present invention, (a)
Is a plan view and (b) is a cross-sectional view taken along the line AA of (a).

FIG. 2 is a block diagram related to a control unit of the embodiment.

FIG. 3 is a flowchart for explaining the operation of the embodiment.

FIG. 4 shows a conventional automatic door of a toilet for the physically handicapped,
(A) is a plan view, (b) is a front view seen from the outside of the door,
(C) is an enlarged view of an outer operation panel, and (d) is an enlarged view of an inner operation panel.

[Explanation of symbols]

 11 Closed Push Button 12 Opened Push Button 13 Closed Push Button 14 Open Push Button 15 Door 19 Optical Safety Sensor 21 Latch 22 Open / Close Operation Section 23 Lock Detection Section 24 Control Section 25 Door Drive Device

Claims (2)

[Claims] 1. An automatic door apparatus in which a control unit controls opening and closing of a door by an opening signal and a closing signal by operating an opening and closing operation unit provided inside and outside the door, respectively, wherein a detection area is provided near the door. An optical safety sensor is provided, and by the detection of the optical safety sensor, the control unit outputs a priority opening command for opening the door prior to the closing command by the closing signal of the closing operation unit during the detection period, and the priority opening command is output. An automatic door device characterized in that a command is made valid only after the closing operation portion is operated until the door is fully closed. 2. The automatic door device according to claim 1, wherein the closing command by the closing operation unit is held even during the priority opening command output period by the optical safety sensor, and the priority opening command disappears by the closing command. An automatic door device characterized in that the door is closed later.