JPH05171862A - Opening/shutting apparatus for door - Google Patents

Abstract

PURPOSE:To make opening/shutting control of doors executable even though there is a trouble in which one door is opened while the other is shut. CONSTITUTION:The title apparatus is equipped with two doors 3a and 3b, actuators 8a and 8b that drive the doors 3a and 3b for opening and shutting, position sensors 20a, 20b and 21a, 21b for sensing the positions of the doors 3a and 3b, and a controller 19 that controls the actuators 8a and 8b. The doors 3a and 3b are operated for opening and shutting in a fixed sequence and at the same time, operation for opening either the door 3a or the door 3b is started when at least either of the door 3a and the door 3b is detected to be in shutting position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention opens and closes in a fixed order.
The present invention relates to a door opening / closing device.

[0002]

2. Description of the Related Art For example, a vehicle other than a sliding door type vehicle such as a railroad vehicle, and a door divided into two parts is required to close the opening at the closed position, and therefore, the sealing members are mutually sealed at the closed position. Two doors that overlap with each other are used.

As described above, the two doors overlapping at the closed position cannot collide with each other or cannot be completely closed unless they are opened and closed in a fixed order. Therefore, it is equipped with a sensor for detecting the position of each door, an actuator that opens and closes each door, and a control device for this actuator.When both doors are in the open position, the closing operation is performed in a certain order, and both doors close. A control device has been used which performs opening operations in a certain order when in the position.

[0004]

When a mechanism for opening and closing a door using an air cylinder, for example, is used as an actuator, the air pressure acting on the air cylinder is released during maintenance and inspection, and the two doors are released. May be opened and closed manually. In such a case, the operator forgets to keep the two doors open or closed together, and the control device is opened again with one door open and the other door closed. May attempt to perform opening / closing control.

However, in the conventional door opening / closing control device, the doors cannot be opened / closed unless both doors are in the open position or the closed position. Therefore, the doors are manually opened / closed again. It had to be done and it was very troublesome.

Therefore, it is conceivable to perform the opening / closing control even if the two doors are not in the open position or the closed position, but if the doors that should be closed later are closed first, the overlapping portion Interfere with each other and the door that should be closed first cannot be closed completely.

An object of the present invention is to provide a door opening / closing device that can solve the above-mentioned problems of the prior art.

[0008]

The first feature of the present invention is that it includes two doors, an actuator for opening and closing each door, a sensor for detecting the position of each door, and a control device for the actuator. It is provided that both doors are opened and closed in a fixed order, and the opening operation of the doors is started by detecting that at least one door is in the closed position.

The second aspect of the present invention is characterized in that it includes two doors, an actuator for opening and closing each door, a sensor for detecting the position of each door, and a control device for the actuator, and both doors are fixed. The doors are opened and closed in order, and the closing operation of the door is started by detecting that the door to be closed later is in the open position.

[0010]

According to the structure of the first aspect of the present invention, the opening operation of the doors can be started if at least one of the doors is in the closed position. Therefore, even if the two doors are not closed, the doors can be opened. it can.

According to the structure of the second aspect of the present invention, the door closing operation can be started by detecting that the door to be closed later is in the open position. It can be prevented from being closed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an opening / closing device for two left and right doors 3a, 3b for opening and closing an opening 2 formed at the front and rear ends 1 of a railway vehicle. The doors 3a and 3b are attached to the wall 1 via hinges 4a and 4b, and the positions thereof can be changed by rotating about the vertical axis between a closed position shown by a solid line and an open position shown by a broken line in the figure. A seal member 6 is attached to each of the doors 3a and 3b so as to come into contact with an overhanging portion 5 projecting from the wall 1 into the opening 2. Further, both doors have overlapping portions 3a 'and 3b' that overlap each other at the closed position.
A seal member 7 interposed between a'and 3b 'is attached to the overlapping portion 3a' of the left door 3a which is closed later.

The doors 3a and 3b are connected to the air cylinders 8a and 8b so as to be rotatable relative to the centers of the vertical axes 9a and 9b. The air cylinders 8a and 8b are connected to the vehicle-side member 10 so as to be relatively rotatable about the vertical axes 11a and 11b. Each of the air cylinders 8a and 8b is a double-acting type and is connected to the electromagnetic valves 12a and 12b, respectively. Each electromagnetic valve 12a, 12b is of a two-position switching type, and has a port connected to one air chamber of each air cylinder 8a, 8b through piping 13a, 13b and the other air chamber of each air cylinder 8a, 8b. Pipe 14a,
14b and a port communicating with 14b, and a pipe 15
And a port communicating with the exhaust pipes 16a and 16b.

Each solenoid valve 12a, 12b is a solenoid 17a, 17b for closing operation and a solenoid 18 for opening operation.
a, 18b, and each solenoid 17a, 17b, 1
8a and 18b are connected to the control device 19. The control device 19 can be configured by, for example, a microcomputer including an input / output interface, a central processing unit, a storage device, and a clock circuit.

Position control sensors 20a, 20b, 21a, 21b of the doors 3a, 3b are connected to the control device 19 via wirings 22a, 22b, 23a, 23b. In this embodiment, as shown in FIG.
Open detection sensors 20a and 20b and a close detection sensor 21 which are constituted by limit switches inside a and 8b.
a, 21b are built in, and when the doors 3a, 3b are opened by the expansion of the air cylinders 8a, 8b, the air cylinders 8a, 8b
The pistons 8a 'and 8b' of FIG.
When a, 20b is turned on and the doors 3a, 3b are closed by reducing the air cylinders 8a, 8b, the pistons 8a ',
8b 'turns on the close detection sensors 21a and 21b.

Further, the control device 19 is connected with a power switch 24 for opening and closing a control power source, a push button switch 25 for opening both doors 3a and 3b, and a push button switch 26 for closing both doors 3a and 3b. ing.

Then, the opening / closing control of the doors 3a, 3b is performed according to the program stored in the storage device of the control device 19. The opening / closing control will be described below with reference to the flowcharts of FIGS.

First, when the power switch 24 is turned on (step 1), the initialization timer is started (step 2), and it is judged whether or not the initialization time is up (step 3). If the initialization time has not expired, the door open / close input is rejected and even if the door open / close switch 2
The actuators 8a and 8b do not operate even when the switches 5 and 26 are turned on (step 4).

Next, it is judged whether or not the right door 3b to be closed first is in the closed position (step 5). Right door 3b
Is the closing position, the closing solenoid 17 of the right door 3b
A closing signal is output to b, and the signal output state is held (step 6). In step 5, right door 3b
Is not in the closed position, the solenoid 1 for opening the right door 3b
An opening signal is output to 8b, the signal output state is held, and the right door 3b is in the opening position (step 7).

Next, it is judged whether or not the left door 3a to be closed later is in the closed position (step 8). Left door 3a
Is the closing position, the closing solenoid 17 of the left door 3a
A closing signal is output to a and the signal output state is held (step 9). In step 5, the left door 3a
Is not in the closed position, the solenoid 1 for opening the left door 3a
An opening signal is output to 8a, the signal output state is maintained, and the left door 3a is in the opening position (step 10).

When the initialization time is up in step 3, the opening / closing input refusal is released, and control is performed according to the operation of the opening / closing switches 25 and 26 (step 11). In addition, the initialization time is controlled by steps 4 to 10 for each door 3a, 3a.
It is set to a time longer than the time required to position b in the open position or the closed position. As a result, by turning on the power switch 24, the doors 3a and 3b are positioned at either the open position or the closed position. Further, the left door 3a that should be closed later is not closed first. In addition, the doors in the closed position will not be in the open position or the doors in the open position will not be in the closed position when maintenance or inspection before the control is performed. It is possible to prevent the 3b from opening and closing in an unexpected direction and colliding with an obstacle or the like.

Next, as shown in FIG. 4, when the opening switch 25 or the closing switch 26 is turned on and an opening / closing input is made (step 12), the operation time limit timer is started (step 13). This operation time limit timer is provided for each door 3a due to noise or the like after completion of door opening / closing control.
This is to turn off the control power after a certain operating time required for the normal opening / closing control of the doors 3a and 3b has passed so that the 3b does not malfunction.

Next, it is judged whether or not the operating time limit time has expired (step 14),
If the time is not up, it is determined whether the right door 3b is in the closed position (step 15). If the right door 3b is in the closed position, it is judged whether or not there is an opening input by pressing the opening switch 25 (step 16).

If there is an opening input in step 16, as shown in FIG. 5, the opening solenoid 1 for the left door 3a is opened.
An open signal is output to 8a and the signal output state is held (step 17). Next, it is judged whether or not the left door 3a is in the open position (step 18), and if it is not in the open position, it is judged whether or not there is a closing input by pressing the closing switch 26 (step 19). If there is no closing input, it is judged whether or not the operation time limit time is up (step 20), and if it is not up, the process returns to step 17. Next, when it is determined in step 18 that the left door 3a is in the open position, an opening signal is output to the opening solenoid 18b of the right door 3b as shown in FIG. 6, and the signal output state is maintained ( Step two
1). Next, it is judged whether or not the right door 3b is in the open position (step 22), and if it is not in the open position, it is judged whether or not there is a close input (step 23). It is judged whether or not the time is up (step 24), and if it is not up, the process returns to step 21. When it is determined in step 22 that the right door 3b is in the open position, the control power source is turned off.
The control becomes FF (step 25). As a result, both doors 3a and 3b are in the open position. Note that each of the electromagnetic valves 12a and 12b is held at the current position by the self-holding circuit when the control power supply is turned off.

When it is determined in step 15 that the right door 3b is not in the closed position, it is determined whether the left door 3a is in the closed position (step 26). When the left door 3a is in the closed position, both doors 3a and 3b are in the open position by the control procedure of steps 16 to 25. That is,
When it is detected that at least one of the doors 3a and 3b is in the closed position, the opening operation of the doors 3a and 3b can be started. Further, since the left door 3a is first opened and then the right door 3b is opened, both doors 3a and 3b do not collide with each other.

If a closing input is made in step 19, a closing signal is output to the closing solenoid 17a of the left door 3a, and this signal output state is held (step 2).
7). Next, it is judged whether or not there is another opening input (step 28), and if there is no opening input, step 29 is executed.
Left door 3a until the operating time limit time is up at
Is closed. This is for performing the closing operation because the opening operation cannot be temporarily stopped when an emergency occurs. In addition, if there is a reopening input in step 28, the left door 3 again
The opening operation of a is performed. If the operation time limit time is up in step 20 or step 29 by temporarily closing the left door 3a during the opening operation of the left door 3a, the control power is turned off and control is performed. To finish, the power switch 24 is turned on again in order to open the right door 3b or both doors 3a and 3b.
Then, the opening switch 25 is turned on.

Further, if there is a closing input in step 23, a closing signal is output to the closing solenoid 17b of the right door 3b and the signal output state is held (step 3).
0). Next, it is judged whether or not there is an opening input again (step 31), and if there is no opening input, a step 32 is performed.
Right door 3b until the operating time limit time is up at
Is closed. This is also to cause the closing operation because the opening operation cannot be temporarily stopped when an emergency occurs as in the case described above. Further, when the opening input is made again in step 31, the opening operation of the right door 3b is performed again. If the operation time limit time is up in step 24 or step 32 by temporarily closing the right door 3b during the opening operation of the right door 3b, the control power is turned off and the control is performed. To end the operation, the power switch 24 is turned on again and the opening switch 25 is turned on to perform the opening operation of the right door 3b.

Next, when it is determined in step 26 that the left door is not in the closed position, it is determined whether the left door 3a is in the open position (step 33). When the left door 3a is in the open position, it is determined whether or not there is a close input (step 34).

If there is a closing input in step 34, as shown in FIG. 7, the closing solenoid 1 for the right door 3b is closed.
A closing signal is output to 7b and the signal output state is held (step 35). Next, it is judged whether or not the right door 3b is in the closed position (step 36), and if it is not in the closed position, it is judged whether or not there is an opening input (step 3).
7) If there is no opening input, it is judged whether or not the operation time limit time is up (step 38), and if it is not up, the process returns to step 35. Next, when it is determined in step 36 that the right door 3b is in the closed position, as shown in FIG.
A closing signal is output to a and the signal output state is held (step 39). Next, it is judged whether or not the left door 3a is in the closed position (step 40), and if it is not in the closed position, it is judged whether or not there is an opening input (step 4).
1) If there is no opening input, it is judged whether or not the operation time limit time is up (step 42), and if not, the process returns to step 39. Then, when it is determined in step 40 that the left door 3a is in the closed position, the control power supply is turned off and the control ends (step 43). As a result, both doors 3a and 3b are in the closed position. The control power source of each electromagnetic valve 12a, 12b is turned on.
When it becomes FF, it is held at the current position by the self-holding circuit.

That is, the closing operation of both doors 3a and 3b can be started only when the left door 3a to be closed later is judged to be the open position in step 33. As a result, it is possible to prevent a situation in which the right door 3b, which should be closed first, is not closed later and the doors 3a and 3b cannot be completely closed.

If there is an opening input in step 37, an opening signal is output to the opening solenoid 18b of the right door 3b, and this signal output state is held (step 4).
4). Next, it is judged again whether or not there is a close input (step 45), and if there is no close input, step 46 is executed.
Right door 3b until the operating time limit time is up at
Is opened. This is to cause the opening operation because the closing operation cannot be temporarily stopped when an emergency occurs. Further, if there is a close input again in step 45, the right door 3 again
The closing operation of b is performed. If the operation time limit time is up in step 38 or step 44 by temporarily opening the right door 3b during the closing operation of the right door 3b, the control power is turned off and the control is performed. To finish, the power switch 24 is turned on again to close the left door 3a or both doors 3a and 3b.
Then, the closing switch 26 is turned on.

If there is an opening input in step 41, an opening signal is output to the opening solenoid 18a of the left door 3a, and this signal output state is held (step 4).
7). Next, it is judged again whether or not there is a close input (step 48), and if there is no close input, step 49.
Left door 3a until the operating time limit time is up at
Is opened. This is to cause the opening operation because the closing operation cannot be temporarily stopped when an emergency occurs. Further, if there is a close input again in step 48, the left door 3
The closing operation of a is performed. When the operation time limit time is up in step 42 or step 49 by temporarily opening the left door 3a in the middle of the closing operation of the left door 3a, the control power is turned off and control is performed. In order to complete the closing operation of the left door 3a, the power switch 24 is turned on again and the closing switch 26 is turned on.

The present invention is not limited to the above embodiment. For example, although the present invention is applied to the doors having the openings formed at the front and rear ends of the vehicle in the above embodiment, the doors are opened and closed in a fixed order.
The present invention can be applied to any opening / closing control device for a single door. Further, for example, an electric motor may be used as the actuator, as long as it can open and close the door. Further, as a door position detecting sensor, for example, a proximity switch may be attached to the door as long as it can detect the door position.

[0035]

According to the door opening / closing device of the first aspect of the present invention, the opening operation of the door can be started if at least one door is in the closed position, so that one door is opened and the other door is closed. Even if a situation occurs, it is possible to control the opening and closing of the door, and there is no need to manually open and close the door as in the conventional case.

According to the door opening / closing device of the second aspect of the present invention, since the door closing operation can be started only when it is detected that the door to be closed later is in the open position, the door is completely closed. There is no such thing as not being possible.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a door opening / closing device according to an embodiment of the present invention.

FIG. 2 is a sectional view of an actuator according to an embodiment of the present invention.

FIG. 3 is a diagram showing a flowchart according to an embodiment of the present invention.

FIG. 4 is a diagram showing a flowchart according to an embodiment of the present invention.

FIG. 5 is a diagram showing a flowchart according to an embodiment of the present invention.

FIG. 6 is a diagram showing a flowchart according to an embodiment of the present invention.

FIG. 7 is a diagram showing a flowchart according to an embodiment of the present invention.

FIG. 8 is a diagram showing a flowchart according to an embodiment of the present invention.

[Explanation of symbols]

 3a, 3b Door 8a, 8b Actuator 19 Control device 20a, 20b, 21a, 21b Sensor

Claims (2)

[Claims] 1. Two doors, an actuator for opening and closing each door, a sensor for detecting the position of each door, and a control device for the actuator are provided, and both doors are opened and closed in a fixed order, and at least one of the doors is opened. A door opening / closing device, which starts the opening operation of the door by detecting that the door is in the closed position. 2. Two doors, an actuator for opening and closing each door, a sensor for detecting the position of each door, and a control device for the actuator are provided, and both doors are opened and closed in a fixed order and later closed. A door opening / closing device, which starts the closing operation of the door by detecting that the opened door is in the open position.