JPH04306388A - Gate device - Google Patents

Abstract

PURPOSE:To check the passing of persons without inflicting any injury on them and with sufficient force. CONSTITUTION:Doors D mounted to walls B forming a passage for controlling the passing of persons with opening and shutting motions in the shape of a fan with an aerial view for opening and shutting the passage P are constituted of the first step doors D1 on the walls and the second step doors D2 pivoted on the front ends of the doors D1 as two stage construction. A driving mechanism of the first step doors and a driving mechanism of the second step doors have respectively different control mechanisms in the flexibility and rigidity of persons.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate device for opening and closing a passageway formed between barriers in order to control the passage of people through the passageway.

0002

2. Description of the Related Art Conventionally, in order to allow people who meet predetermined permission conditions to pass through and to prevent people who do not meet permission conditions from passing through, a path formed by a barrier and a door that opens and closes the path are used. A gate device is used that includes a condition success/failure determination section and a drive mechanism that drives the door to open and close based on the determination result.

[0003] In this case, the force that blocks the door passage is:
A large amount of force is required to stop a person from moving. However, if the force is too great, there is a risk of harm to people. To prevent this danger, conventionally, a friction clutch or the like has been used in the transmission system between a drive source such as a motor and the rotating shaft of the door.

0004

[Technical Problems to be Solved] Therefore, the cost of the gate device is high, and since the gate device is fixed to the side where the force applied to the blocking object is small, there is a problem that a sufficient blocking force cannot be obtained.

[0005] Accordingly, the present invention provides a gate device that can block passage with sufficient force without causing any harm to people by devising the structure and drive mechanism of the door. With the goal.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, a gate device according to the present invention is provided on a barrier forming a passage for controlling the passage of people, and for opening and closing the passage. The door, which opens and closes in a fan shape when viewed directly from above, has a two-stage structure, with a first stage door on the barrier side and a second stage door pivoted to the tip side of the door. The present invention is characterized in that it includes a control mechanism that makes the drive mechanism for the first stage door and the drive mechanism for the second stage door different in terms of flexibility and rigidity relative to people.

[0007] Furthermore, the drive mechanism for the first stage door is capable of changing compliance, and the drive mechanism for the second stage door is characterized in that it operates robustly.

Furthermore, the door drive mechanism is mounted so as to be movable parallel to the barrier, and the compliance of the drive mechanism's movement parallel to the barrier can be changed, thereby making the opening and closing movement of the door a robust operation. It is characterized by

Furthermore, door rotation axes are provided on the left and right barriers of the passageway at approximately the same positions with respect to the traveling direction, and one of the doors is rotated in the same direction as the traveling direction of the passageway, and the other door is rotated in the same direction as the traveling direction of the passageway. The door is characterized by being installed so that it can be rotated in the opposite direction to the direction of travel.

0010

[Operation] The drive mechanism for the first stage door on the barrier side and the drive mechanism for the second stage door pivoted on the tip side of the door,
Because they differ in their flexibility towards people, even if a person blocked from passing collides with either door, they will not be harmed and will have sufficient stopping power.

[0011] If the drive mechanism of the first stage door is made to be able to change compliance, and the drive mechanism of the second stage door is made to operate robustly, it is possible to The door that comes into contact with the person first makes a soft contact with the person, and if the person advances further, the second door makes a firm contact with the person, making it possible to prevent harm and reliably stop the person.

[0012] Furthermore, the door drive mechanism is mounted so as to be movable parallel to the barrier, and the compliance of the drive mechanism's movement parallel to the barrier can be changed, thereby making the opening and closing movement of the door a robust operation. The case is flexible during initial contact and solid during subsequent advancement, thus preventing harm and providing sufficient stopping power.

[0013]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the closed state, FIG. 2 is a plan view of the fully closed state due to human contact, and FIG. 3 is a block diagram showing an example of the configuration of the control mechanism.

In FIG. 1, B represents a pair of left and right barriers forming a passage P. A door D for opening and closing the passage P is attached to the opposing surface of each barrier B. Since the doors D have the same configuration and are arranged symmetrically, the door on one side will be explained with reference to FIG.
It consists of a first door D1 having a rotating shaft 1 on its side, and a second door D2 fixed to and rotatable around a shaft 2 rotatably supported at the free end of the first door.

The first door D1 is shaped like a fan when viewed from directly above the passage, from a position parallel to the barrier B (open position) to a position where approximately half of the passage P is closed on the passage P side, with the rotation axis 1 as the center. The second door D2 is attached to the end of the first door D1 so as to be able to open and close when the first door is closed. It is attached so that it can rotate between the rotation direction and the reverse direction to the retracted position. The specific structure for the opening/closing movement of each door D1, D2 will be described later.

Barrier B on the right side in the direction of entry into passage P
is provided with a determination unit 3 that determines the validity of a ticket (including a card) held by a person attempting to enter the passage P, and is provided with a determination unit 3 on the opposite sides of the barriers B1 and B2 across the passage P. A human detector 4 is provided. Further, the barrier B1 or B2 is configured to allow or prevent the detected person from passing through the passage P based on the determination result from the determination unit 3 and the detection output from the human detector 2. A first door drive mechanism 6 and a second door drive mechanism 7 are provided, and a first door drive mechanism 6 and a second door drive mechanism 7 drive the opening and closing of the doors D1 and D2.
is installed.

The determination unit 3, the human detector 4, a door D installed on the opposing surfaces of the left and right barriers B, and a drive mechanism for opening and closing the first door D1 and the second door D2 constituting the door. 6, 7, and a control section 5 that drives both drive mechanisms in the closing direction or the opening direction, the gate device according to this embodiment is constituted. The determination unit 3, human detector 4, and control unit 5 themselves are the same as those of known gate devices, so
Detailed explanation of these will be omitted.

The present invention provides door structure and drive mechanism 6, 7.
These are described in detail below. FIG. 4 is a perspective view of the door, FIG. 5 is a plan view showing the movement of the door, and FIG. 6 is a detailed view of the drive mechanism of the first door. The drive mechanism 6 for the first door includes an actuator 61 as a drive source, a transmission means 62 for transmitting the rotational force of the actuator to the rotation shaft 1 of the first door, and a rotation angle detection means 63 for the first door.
, a displacement detection means 64 , and a control circuit 65 . Note that the actuator 61 uses a known technical element that can perform compliance control.

The rotation angle detection means 63 outputs detection signals when the first door D1 is positioned at an angle that opens the passage P and an angle that closes it. Further, the displacement detection means 64 detects displacement of the first door in the opposite direction to the closing direction, and detects this when, for example, the first door in the middle of closing hits a person traveling in the passage P. It is something to do. Such a displacement detection means is such that the first door D1 is mounted so as to be biased in the closing direction with respect to the rotating shaft 1 by a coil spring or the like having a prescribed constant, and the first door is mounted in a direction opposite to the biasing direction. For example, it can be configured by providing a switch made of a piezoelectric element, which detects when the sensor is rotated.

The control circuit 65 causes the actuator 61 to rotate in the normal direction based on the normal rotation command Sa from the control section 5, and also causes the actuator 61 to rotate in the normal direction based on the output when the rotation angle detection means 63 detects a predetermined closing angle. Also, the actuator 61 is reversed based on a reverse rotation command Sb from the control section 5, and the reverse rotation of the actuator 61 is stopped based on the output when the rotation angle detection means detects a predetermined opening angle. Further, while the actuator 61 rotates forward, that is, while the first door is closing, the displacement detection means
Based on the output when displacement is detected, compliance is controlled according to the amount of displacement while the displacement continues. That is, when an external force is applied to the first door D1 during closing, the rigidity of the first door D1 changes, and the first door D1 becomes soft in the closing direction. When the actuator 61 has rotated to a predetermined closing angle, the forward rotation of the actuator 61 is stopped based on a signal from the rotation angle detection means 64, and the first door D1 is stopped.

On the other hand, the drive mechanism 7 of the second door D2
includes a motor 71 as a drive source, a transmission means 72 that transmits the rotational force of the motor to the rotation shaft 2 of the second door D2,
It has a first door rotation angle detection means 73 and a control circuit 74. The transmission means 72 includes a rotating shaft 721 that is rotatably provided near the rotating shaft 1 of the first door, and a rotating shaft 721 that is rotatably provided near the rotating shaft 1 of the first door.
21 and a toothed pulley 722 fixed to the rotating shaft 2 of the second door, and a toothed belt 723 stretched between these pulleys, or a sprocket and chain, etc.
The belt 723 or chain passes through the first door D1.

When the control section 5 prevents a person from passing through the passageway, the control section 5 normally gives a normal rotation command Sa (closing command) only to the control circuit 65 of the drive mechanism 6 of the first door D1. When the displacement detection means 64 of the door drive mechanism outputs a detection signal, a normal rotation command Sa is given to the control circuit 74 of the drive mechanism of the second door D2. That is, when the second door D2 is rotated in the closing direction and extended in a straight line with the first door D1 based on a person coming into contact with the first door D1 which is being closed or has been closed, the angle detection means 73 outputs a detection signal, it is stopped at that angle. Further, the control unit 5 issues a reverse rotation command Sb to the control circuits 65 and 74 of the drive mechanisms of the first door and the second door, respectively, based on the output when the human detector 4 detects the exit of a person from the passage. give.

When only the first door D1 makes a closing movement, the drive mechanism of the second door does not rotate, so the second door D2 moves in the direction of the figure through the toothed pulley 722 and belt 723 of the transmission means or the sprocket chain. As shown by the dashed line in FIG. 5, since it moves in the direction opposite to the closing direction relative to the first door D1, it is in a position retreated in the direction opposite to the closing direction from the first door that has rotated to the closed position. It happens.

With the above configuration, when the judgment section 3 outputs a judgment error result for the ticket, the control section 5 controls the drive mechanism 6 of the first door when the human detector 4 outputs a detection signal. The actuator 61 rotates in the normal direction to output a closing command to the control circuit 65, and when the rotation angle reaches a predetermined angle as shown in FIG. Rolling can be stopped.

During this time, if the person H does not come into contact with the first door D1, the second door D2 is bent toward the rear of the passage from the tip of the first door. On the other hand, if a person contacts the first door D1 and applies enough force to operate the displacement detection means 64 while the first door is moving in the closing direction, the Based on the output, the control circuit 65 changes the rigidity of the first door D1 according to the amount of displacement, and becomes softer to the human body.

Further, when a person touches the first door D1 which is in the middle of closing or has rotated to a predetermined closing position and the displacement detection means 64 outputs an output, the detection signal is given to the control section 5,
The control unit 5 gives a normal rotation command Sa to the control circuit 74 of the drive mechanism of the second door, so the motor 71 is rotated in the normal direction, and the second door D2 is rotated in the closing direction as shown in FIG. It is in line with the first door D1 and assists in closing by the first door. Since the drive mechanism of the second door is constructed to be robust, it has a large force to prevent passage. In other words, the first door gently blocks people's progress, but the second door firmly blocks them.

Note that when the first door D1 is rotated to a predetermined closed position, the displacement detection means 64 detects the displacement, for example, if the belt 723 is configured to apply a biasing force to the first door D1. In this case, the second door drive mechanism can rotate the second door D2 in the closing direction based on the first door reaching the closing position.

[0028] In this way, the shape of the second door and the first door when they extend in a straight line provides a great psychological deterrent effect against people who try to illegally pass through. In addition,
The second door may be bent further forward than the extension of the first door to form an F-shape.

FIG. 8 is a plan view of a second embodiment of the present invention. In this embodiment, a door unit 8 with a drive mechanism for the door D installed inside the barrier B is supported so as to be movable in parallel along the barrier B, and the door D that opens and closes the passage P is attached to the door unit 8. The end is rotatably attached to the rotating shaft 9,
A spring 10 and an absorber 11 are provided between the door unit 8 and the barrier B, and the door unit 8 utilizes the constant characteristics of the spring 10 to prevent a person who attempts to illegally pass through the passage P to the door D. Compliance control is performed when the

That is, as shown in FIG. 9, when a person H comes into contact with door D that is in the middle of closing, the displacement detection means provided on the door outputs an output and the compliance control of the drive mechanism causes The rigidity of the door is reduced, making it softer for people, and when the door is moved in the direction of travel by a person, the spring 1 increases depending on the amount of movement.
The force exerted by the door on the person becomes stiffer due to the effect of 0. In other words, when the door first comes in contact with a person, it is soft and gradually becomes harder.

By appropriately setting the spring constant, it is possible to perform desired compliance control using only the spring 10, even if the control circuit is not equipped with a function to perform drive adjustment based on displacement detection.

[0032] When a person leaves the door and retreats from the passage, the door unit 8 does not return suddenly but gradually returns due to the action of the absorber 11, so there is no danger to the person. Moreover, the drive mechanism is not prone to failure due to impact.

[0033] Using the above-described gate device, for example, a person in possession of a ticket that has been determined to be valid may proceed through the passageway P, followed by a person in possession of a ticket that has been determined to be an error. To effectively prevent this if you try:
As shown in FIG. 10, a pair of doors D are provided before and after the passage P.
11, D12; D21, D22 need to be installed. However, in practice, such close installation is difficult and increases the cost.

FIG. 11 shows that by using the minimum number of the gate devices of the first embodiment, it is possible to reliably prevent unauthorized passage of a person who has been judged as an error following a person who has been judged to be valid. An example will be shown below. In this embodiment, door rotation shafts are provided on the left and right barriers B1 and B2 at approximately the same position in the direction of travel, and one of the doors Da is rotated in the same direction as the direction of travel in the passage P.
The other door Db is installed so as to rotate in a direction opposite to the direction of movement. Incidentally, human detectors 4a and 4b are provided in front of each of the front and rear doors in the direction of movement.

In this way, even if a person corresponding to the validity judgment of the judgment section advances into the passage P and is detected by the human detectors 4a and 4b, the control section of the gate device does not close any of the doors, but the judgment section When the person corresponding to the error determination proceeds to the passage P and the human detector 4a corresponding to the door Da outputs a detection signal, the valid person in front passes through the rear door Db, that is, at the same time At the same time that the human detector 4b outputs a passage detection signal, the gate device is driven and the door Da is closed. Therefore, the preceding person is not prevented from passing, and the subsequent person who is determined to have made an error is surely prevented from passing illegally.

[0036]

Effects of the Invention As described above, according to the present invention, the door that prevents passage is soft when it first comes into contact with a person, and
It gradually becomes harder and strongly prevents people, so it does not cause any harm to people, and it can reliably stop people who are trying to illegally pass through.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a first embodiment of the present invention in a closed state.

FIG. 2 is a top view of the fully closed state with a person in contact with the door;

FIG. 3 is a block diagram showing an example of the configuration of a control mechanism.

FIG. 4 is a partial perspective view showing the structure of the door of the first embodiment.

FIG. 5 is a plan view illustrating the operation mode of the door.

FIG. 6 is a schematic diagram showing the configuration of a drive mechanism for the first door.

FIG. 7 is a schematic diagram showing the configuration of a second door drive mechanism.

FIG. 8 is a plan view of main parts of the second embodiment.

FIG. 9 is a partial plan view illustrating the operation according to the second embodiment.

FIG. 10 is a plan view showing an example of door installation.

FIG. 11 is a plan view showing a preferred installation example of the door.

[Explanation of symbols]

B Barrier P Passage D Door D1 First door D2 Second door H person 1 Rotation axis 2 Rotation axis Da, Db door

Claims (4)

[Claims] Claim 1: A door that is provided on a barrier forming a passage for controlling the passage of people, and that opens and closes the passage in a fan shape when viewed from directly above, is provided on the first stage of the barrier side. A two-stage structure having a door and a second-stage door pivotally attached to the tip side of the door, and a drive mechanism for the first-stage door and a drive mechanism for the second-stage door, A gate device characterized by being equipped with a control mechanism that differs in flexibility and rigidity relative to people. 2. The drive mechanism of the first stage door is capable of changing compliance, and the drive mechanism of the second stage door is capable of robust operation. gate device. 3. A door drive mechanism is mounted so as to be movable parallel to the barrier, and the movement of the drive mechanism parallel to the barrier can be varied in compliance, so that the opening and closing movement of the door is made to be a robust operation. A gate device characterized by: 4. Door rotation axes are provided on the left and right barriers of the passageway at approximately equal positions with respect to the traveling direction, and one door is rotated in the same direction as the traveling direction in the passageway, and the other door is rotated in the same direction as the traveling direction in the passageway. 3. The gate device according to claim 1, wherein the door is installed so as to be rotated in a direction opposite to the direction of travel.