JPH0819811B2 - Automatic door control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic door control device, and more specifically, to prevent unnecessary automatic opening / closing movement of a door body other than intention when passing near the automatic door. Technology for doing.

[Conventional technology]

For example, JP-A-62-178680 discloses a technique in which the sliding door is prevented from automatically opening and closing unless the sliding door is manually moved slightly in the opening direction. It is possible to prevent useless automatic opening and closing movement of the sliding door when passing near the sliding door. The concrete structure of this is that a rotating body that rotates only when the sliding door moves in the opening direction is attached to the drive shaft of a drive unit that opens and closes the sliding door, and a plurality of permanent magnets are attached to the rotating body at equal angular intervals. The magnetically sensitive switch mechanism is provided so as to face the rotating body. With such a configuration, when the sliding door is slightly moved in the opening direction by manual operation, the rotating body rotates in association with the sliding door, so that one of the permanent magnets of the rotating body causes the magnetic sensitive switch. A predetermined signal is generated when approaching the mechanism,
This signal activates the drive unit to automatically move the sliding door in the opening direction, and after the fully opened state, the sliding door is moved in the closing direction without rotating the rotating body. Further, in this publication, when the movement of the sliding door is stopped by hitting an object or being pressed by a passerby while the sliding door is moving in the closing direction, the operation of the drive unit stops and If the sliding door slightly moves in the opening direction from this state, the permanent magnet acts on the magnetically sensitive switch mechanism in the same manner as above and the drive unit is activated to automatically move the sliding door in the opening direction. Is suggested.

[Problems to be Solved by the Invention]

However, the technique disclosed in the above-mentioned publication requires a rotating body, a plurality of permanent magnets and a magnetic sensitive switch mechanism as indispensable constituent elements, and the rotating body is attached so as to be rotatable only in one direction with respect to the drive shaft. It is necessary to increase the number of parts and complicate the structure, which not only increases the failure rate, but also complicates the installation work and the position adjustment work for each of the above-mentioned constituent elements and the installation time and There is a problem that the position adjustment time is prolonged and the cost is increased.

In addition, the technology disclosed in the above publication is provided when a succeeding passerby tries to pass through the automatic door while the sliding door is moving in the closing direction immediately after the preceding passerby passes through the automatic door. , The sliding door does not automatically open if the following passerby holds out the hand and stops the movement of the sliding door.In other words, the sliding door does not automatically open unless it is manually moved in the opening direction after stopping the sliding door. It does not work, so not only time loss occurs when it is urgent, but also when the sliding door hits the item, the sliding door only stops, so it is a great obstacle to loading and unloading the item. Becomes

The present invention has been made in view of the above circumstances, and prevents unnecessary automatic opening and closing movement contrary to the intention of the door body without separately providing a special mechanism or device, and the door body moves in the closing direction. Even if a passerby or an article enters in the middle of the operation, it is a technical subject to enable the automatic door to pass through smoothly.

[Means for solving the problem]

The first means for achieving the above-mentioned technical problem is based on a signal from a position detection unit that detects an open / closed position of a door body, a drive unit that drives the door body to open / close, and a signal from the position detection unit. In the automatic door control device having a control unit for controlling the drive unit, the control unit, based on a signal from the position detection unit, indicates that the door body has moved a predetermined amount in the opening direction from the closed position. At the time of detection, an open signal for driving the door body in the opening direction is sent to the drive unit.

Further, the second means for achieving the above technical problem is a position detection unit that detects the open / closed position of the door body, a drive unit that drives the door body to open / close, and a signal from the position detection unit. In the automatic door control device having a control unit for controlling the drive unit based on the above, the control unit notifies the signal from the position detection unit that the door body has moved a predetermined amount in the opening direction from the closed position. At the time of detection based on the above, an open signal for driving the door body in the opening direction is sent to the drive unit, and the position detection unit detects that the door body is stopped or substantially stopped while being driven in the closing direction. When it is detected on the basis of the signal from, the open signal for driving the door body in the opening direction is sent to the drive section.

[Action]

According to the first means, in this type of automatic door control device, the door is moved in a predetermined direction from the closed position to the opening direction by utilizing the signal from the position detecting unit which is an existing constituent element. In other words, the control unit detects that the opening operation of the door is started manually, and at the time of this detection, the control unit sends an opening signal to the driving unit to drive the door in the opening direction. Become. Specifically, the opening / closing position of the door body is always detected by the position detection unit, and therefore, when the door body moves, the control unit always recognizes the position of the door body that changes moment by moment. . Then, when the door body is moved by a predetermined amount in the opening direction from the closed position by the hand of a passerby,
The control unit determines that a passerby intends to open and open the door, and thereafter, the control unit activates the drive unit to automatically open the door.

On the other hand, according to the second means, as in the case described above, the control unit detects that the door body has moved a predetermined amount in the opening direction from the closed position, that is, the door body has started the opening operation manually. However, at the time when this detection is performed, an open signal for driving the door body in the opening direction is sent from the control unit to the drive unit. Further, in this type of automatic door control device, by utilizing the signal from the position detection unit which is an existing component, that the door body is stopped or almost stopped while being driven in the closing direction, that is, The control unit detects that there is no position movement in the closing direction of the door body or the position movement is below a predetermined value, and when this detection is made, the control unit opens the door body to the drive unit. An open signal for driving in the direction will be transmitted. Therefore, if a subsequent passer-by invades while moving in the closing direction after the preceding passer-by passes and the door is in the fully open state, the subsequent passer-by will reach out and reach the door. Only by stopping the body or substantially stopping the body, after that, the control unit reversely drives the drive unit to automatically open the door body.

〔Example〕

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

First, a schematic structure of an automatic door (double-sliding automatic door) to which the present invention is applied will be described. As shown in FIG. 1, a drive device (electric motor) 2 is provided in a seamless area 1 above a doorway.
And a drive wheel 3 and a driven wheel 4 which are timing pulleys, sprockets and the like to which the rotation of the drive shaft of the drive device 2 is transmitted.
And a winding transmission member 5 formed of a timing belt, a chain or the like is wound around the driving wheel 3 and the driven wheel 4. And a pair of door bodies 6,
The upper ends of the respective 6 are connected to the winding transmission member 5 via the connecting members 7, 7.
The rollers 8 ... 8 attached to the upper ends of the pair of door bodies 6, 6 are connected to the rail 9 fixed to the blind 1
It is held so that it can roll freely. Therefore, the drive device 2
Is activated, the tension side portion and the slack side portion of the winding transmission member 5 move in opposite directions, and the pair of door bodies 6 and 6 move in the opening direction (the opposite directions). It is configured to move in the closing direction (closer to each other).

On the other hand, the automatic door control device for controlling the automatic door,
It comprises a rotation detection unit 10 including a tacho-generator and an encoder for detecting the rotation speed of the drive device 2, and a position calculation unit 11 for calculating the current positions of the door bodies 6 based on the detected rotation speed. In addition to having a position detection unit 12, a drive unit 14 including the drive device 2 and a drive output unit 13 that outputs a signal required to drive the drive device 2 is provided.
And the drive unit based on the signal from the position detection unit 12
A control unit 15 for controlling 14 is included. The position calculation unit 11
Is for calculating the rotation speed of the drive device 2 according to the position of the door bodies 6,6, and the storage unit 16 connected to the control unit 15 has an operation pattern of the door bodies 6,6 ( Opening / closing speed, opening / closing stroke, etc.) are stored.

Then, the control unit 15, based on the signal from the position detection unit 12, when detecting that the door body 6,6 has moved a predetermined direction from the closed position in the opening direction, the door body 6,6. An open signal for driving in the open direction is sent to the drive unit 14. In addition to this, based on the signal from the position detection unit 12, the control unit 15 is stopped or substantially stopped while the door bodies 6 are being driven in the closing direction by the drive device 2. At the time of detecting, the open signal for driving the door bodies 6, 6 in the reverse direction in the opening direction is sent to the drive unit 14.

According to the above configuration, when a passerby passes through the automatic door, if the door bodies 6, 6 in the closed position are manually moved slightly in the opening direction, this position movement is caused by the position detection unit 12. A signal indicating that this position movement has been detected and is sent from the position detection unit 12 to the control unit 15, and in the control unit 15, the door bodies 6, 6 have moved a predetermined amount in the opening direction from the closed position. Then, an open signal is sent to the drive unit 14. As a result, the drive device 2 is activated to move the door bodies 6 and 6 in the opening direction, and at the time when the door bodies 6 and 6 are fully opened, the control unit 15 sends a closing signal to the drive unit 14 to close the door bodies 6 and 6. Move in the direction. By performing such an operation, the door bodies 6 are not opened and closed by the drive device 2 merely by a passerby passing by in the vicinity of the automatic door.
The automatic opening and closing movement of 6 will be prevented.

On the other hand, if a subsequent passer-by enters immediately after the preceding passer-by passes through the automatic door, the doors 6, 6 that are moving in the closing direction after being in the fully opened state are passed by the subsequent passer-by. Is manually stopped or brought into a substantially stopped state, the stop or substantially stopped state is detected by the position detection unit 12, and a signal indicating this is sent from the position detection unit 12 to the control unit 15. At the same time, the control unit 15 determines that it is necessary to restart the door bodies 6, 6 and sends an open signal to the drive unit 14. As a result, the drive device 2 is driven in the reverse direction to move the door bodies 6, 6 in the opening direction, and at the time when the door body 6, 6 is in the fully opened state, the control unit 15 sends a closing signal to the drive unit 14,
Move 6 in the closing direction. By performing such an operation, the following passerby simply extends his / her hand and the door body 6,
Only by stopping or substantially stopping the movement of 6 in the closing direction, the door bodies 6 and 6 are restarted, and the automatic door can be smoothly passed. In this case,
The same operation as described above is performed even when the door bodies 6, 6 are stopped or substantially stopped by hitting an object or the like while the door bodies 6, 6 are moving in the closing direction.

Depending on the installation location of the automatic door, passers-by passersby near the automatic door depending on whether the automatic door is on one side space (for example, indoor space) or the other side space (for example, outdoor space). There may be a large difference in the frequency of passing traffic. In such a case, as shown in FIG. 2, a detection device 17 composed of a mat switch (or photoelectric switch) is installed only in the one side space in the automatic door where the passage frequency is low, and the passerby is in the one side space. From the above, when the passerby approaches the automatic door, the presence of the passerby is detected by the detection device 17, and a signal indicating the presence of the passerby is sent to the control unit 15 via the detection device signal input unit 18. Make up. Then, the control unit 15 sends an open signal and a close signal to the drive unit 14 at the time when a signal indicating the presence of a passerby is input to automatically open and close the door bodies 6, 6 according to the operation pattern. When a passerby approaches the automatic door from the other side space having a high traffic frequency, the same operation as the operation based on FIG. 1 described above is performed.

The above embodiment is one in which the present invention is applied to a double-sliding automatic door, but a different type of automatic door,
For example, the present invention is similarly applied to single-sided sliding automatic doors, opening automatic doors, and folding automatic doors as long as they include a control unit, a position detection unit, and a drive unit. It is possible.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

That is, according to the automatic door control device of the first aspect, the door body is predetermined in the opening direction from the closed position on the basis of the signal from the position detection unit which is an existing component in this type of device. Since it is detected whether or not the movement is performed, that is, whether or not a passerby manually moves the door body slightly in the opening direction, there is no need to separately install a dedicated mechanism or device as in the conventional case. The increase in the number of parts and the complexity of the structure are avoided to reduce the failure rate, and the problems such as soaring costs are avoided as much as possible.Furthermore, not only sliding door type automatic doors but also open type automatic doors and folding door type The automatic door can be applied satisfactorily without changing the structure.

Further, according to the automatic door control device of claim (2), in addition to the effect of not separately providing a dedicated mechanism or the like as in the above, the door body performs a predetermined movement in the opening direction from the closed position. When it is detected based on the signal from the position detection unit, an opening signal for driving the door body in the opening direction is sent to the drive unit, so that the door body is opened by the passerby from the closed position. When the vehicle moves by a predetermined amount in the direction, the control unit determines that the passerby intends to open the door and pass through it.After that, the control unit activates the drive unit to automatically open the door. It can be opened manually. Further, while the door is being driven in the closing direction, a passerby (or an article) passing behind
When the vehicle invades, the door body restarts by simply stopping or almost stopping the door body, and the door body is stopped as in the conventional example (JP-A-62-178680). After that, there is no need to manually move the door body in the opening direction, and a subsequent passerby can smoothly pass through the automatic door without causing time loss.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a control system diagram showing an example of an automatic door control apparatus according to the present invention, and FIG. 2 is another example of an automatic door control apparatus according to the present invention. It is a control system figure. 6 ... Door 12 ... Position detector 14 ... Drive 15 ... Control

Claims (2)

[Claims] 1. A position detector for detecting the opening / closing position of a door,
In an automatic door control device having a drive unit that drives the door body to open and close, and a control unit that controls the drive unit based on a signal from the position detection unit, the control unit includes a door body in an opening direction from a closed position. When a predetermined movement is detected based on a signal from the position detection unit, an open signal for driving the door in the opening direction is sent to the drive unit. Automatic door control device characterized by. 2. A position detector for detecting the open / closed position of the door body,
In an automatic door control device having a drive unit that drives the door body to open and close, and a control unit that controls the drive unit based on a signal from the position detection unit, the control unit includes a door body in an opening direction from a closed position. When a predetermined movement is detected on the basis of the signal from the position detection unit, an open signal for driving the door body in the opening direction is sent to the drive unit, and the door body moves in the closing direction. A configuration is such that an open signal for driving the door body in the opening direction is sent to the drive unit at the time when it is detected that the vehicle has stopped or has almost stopped while being driven, based on a signal from the position detection unit. Automatic door control device characterized by being