JP2003027834A - Open-close system of trap type gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gate-door open-close system capable of preventing a contact with an obstacle when a door body is turned. SOLUTION: Infrared sensors S2 are installed between supports 2a and 2b disposed in upright at both end sections of a frontage, ultrasonic sensors S1 are mounted to the lower section of the door body 4, and an overcurrent sensor S3 detecting an overcurrent generated in a drive motor M1 is secured to the drive motor M1 for rotating the door body 4. When a detecting signal is obtained by either of each sensor S1 to S3, the drive motor M1 is stopped. Accordingly, the contact with the obstacle at a time when the door body 4 is revolved can be prevented, and the overcurrent flowing through the drive motor M1 is detected even when the door body 4 is brought into contact with the obstacle and the drive motor M1 is stopped instantaneously. Consequently, safety in the case of the opening and closing of the door of a gate can be improved remarkably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for opening and closing a flip-up gate that opens and closes a door installed in a front opening, and particularly relates to a safety system when opening and closing. Technology to improve the quality.

[0002]

2. Description of the Related Art In recent years, a flip-up type gate has been used as a gate for opening and closing a doorway of a garage. The flip-up gate is equipped with an arm rotatably attached to each of two columns that are erected at both ends of the vehicle entrance and exit.
It has a structure in which a door body is provided between the arms, and the electric motor is driven to rotate the arm with respect to the support pillar, thereby rotating the door body and closing or opening the opening of the doorway. be able to.

In such a flip-up type gate, the switch is automatically opened by the operator or the ID data is collated by wireless communication between the vehicle and the gate.
It is configured to be closed.

[0004]

In the conventional flip-up type gate described above, since the door body turns at the entrance / exit of the garage, if an obstacle is present near the entrance / exit, the obstacle will be closed. There is a possibility of contact with the door, in which case there is a possibility of damaging the gate or an obstacle.

The present invention has been made in order to solve such a conventional problem, and an object thereof is to prevent contact with an obstacle at the time of turning operation of a door body at the time of opening and closing the gate door. It is to provide a flip-up type gate opening / closing system that can be used.

[0006]

In order to achieve the above object, the invention according to claim 1 of the present application is a door body, arms attached to both ends of the door body, and struts erected at both ends of the frontage. And an end portion of the arm is rotatably supported with respect to the support column, and the arm is rotated by a drive motor, whereby the door body is swung to open the opening of the frontage. A system for controlling a flip-up type gate that opens and closes a part, which is installed at an appropriate place of the door body,
A first sensor for detecting an obstacle close to the door body; and a motor control means for stopping the drive of the drive motor when a detection signal is given from the first sensor. It is a feature.

According to a second aspect of the present invention, in the flip-up type gate opening and closing system according to the first aspect, further, there are obstacles that are arranged between columns that are erected at both ends of the frontage. A second sensor for detecting an object is provided, and the motor control means controls the drive motor of the drive motor when a detection signal is given from any one of the first sensor and the second sensor. It is characterized in that the driving is stopped.

According to a third aspect of the present invention, in the flip-up type gate opening / closing system according to the first aspect or the second aspect, an overcurrent flows through the drive motor for rotating the arm and the door body. The motor control means drives the drive motor when a detection signal is given from at least one of the first to third sensors. It is characterized by stopping.

According to a fourth aspect of the present invention, the first sensor is an ultrasonic sensor.

According to a fifth aspect of the present invention, the second sensor is an infrared sensor.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing the outer appearance of a flip-up type gate opening / closing system according to an embodiment of the present invention, and FIG. 2 is a side view. As shown in the figure, the gate opening / closing system 1 includes a gate 10 and a control unit 5.

The gate 10 is provided with columns 2a and 2b which are erected at both ends of a frontage of a garage, two arms 3a and 3b which are rotatably supported by the columns 2a and 2b, and two arms. Three
The door body 4 is fixed to a and 3b and has a rectangular lattice shape.

The control unit 5 is arranged near the support column 2a,
The swinging of the door body 4 is controlled to switch between opening and closing the gate 10. In addition, the control unit 5 is capable of wireless communication with the moving unit 6 mounted on the vehicle 7 that enters the garage, and when the approach of the vehicle 7 to the gate 10 is detected. Controls to open the gate 10 and close the gate 10 when the vehicle 7 moves away from the gate 10.

As shown in FIGS. 1 and 2, brackets 9a and 9b are attached from the vicinity of the lower ends of the two columns 2a and 2b toward the front, and the brackets 9a and 9b are attached.
An infrared sensor (second sensor) S2 is attached to the tip of 9b. In addition, as shown in FIGS.
When the gate 4 turns, there are two locations at the bottom of the door body 4,
An ultrasonic sensor (first sensor) S1 for detecting the presence of an obstacle existing in the turning direction is mounted.

FIG. 3 is a block diagram showing the detailed structure of the control unit 5. As shown in FIG. 3, the control unit 5 is a drive motor for rotating the arms 3a, 3b with respect to the columns 2a, 2b. A communication device 8 that performs wireless communication between M1 and the mobile unit 6, and a motor control that controls the drive motor M1 to close or open the gate 10 according to the proximity or separation of the vehicle 7 to or from the gate 10. The unit 11 is provided.

Further, the drive motor M1 is provided with an overcurrent sensor (third sensor) S3 for detecting an overcurrent flowing through the drive motor M1.

Next, the operation of the gate opening / closing system 1 according to this embodiment will be described with reference to the flowchart shown in FIG.

When the vehicle 7 approaches the door body 4 of the gate 10,
By the communication between the mobile unit 6 mounted on the vehicle 7 and the communication device 8 mounted on the controller 5, it is detected that the vehicle 7 approaches the gate 10 (step ST
1). Motor control unit 11 mounted on the control unit 5
In response to this detection signal, the drive motor M1 is rotationally driven, the door body 4 of the closed gate 10 is swung upward, and the opening of the frontage is opened (p3, p2 in FIG. 2).
p1 order operation).

After that, the gate 10 is opened, the vehicle 7 passes through the opening of the opened frontage, and when the vehicle 7 gets into the garage, the moving unit 6 moves away from the communication device 8, so that the proximity detection signal of the vehicle 7 is released. To be done. As a result, the motor control unit 11 causes the drive motor M1 to rotate so as to close the gate 10 that is in the open state.
Turns downward (the operation of p1, p2, and p3 in this order), and the gate 10 is closed (step ST7).

Whether there is an obstacle near the opening of the frontage during the above-mentioned gate opening operation or closing operation,
It is detected by the infrared sensor S2 (step ST2).
When the presence of the obstacle is detected by the infrared sensor S2 (YES in step ST2), the drive motor M1 is stopped by the control of the motor control unit 11 (step ST5). As a result, the opening / closing operation of the gate 10 is stopped (step ST6).

Similarly, whether or not there is an obstacle in the turning direction of the door body 4 is detected by the ultrasonic sensor S1 (step ST3). Then, when the presence of the obstacle is detected by the ultrasonic sensor S1 (YES in step ST3).
S), under the control of the motor control unit 11, the drive motor M1 is stopped and the opening and closing of the gate 10 is stopped (steps ST5 and ST6).

At this time, since the ultrasonic sensor S1 detects the presence of the obstacle gradually from the far side of the gate 10 toward the near side as the gate 10 is closed, the ultrasonic sensor S1 can detect a wide range. It is possible to immediately detect an obstacle approaching from a distance.

Further, whether or not an overcurrent flows through the drive motor M1 is detected by the overcurrent sensor S3 (step ST4). Then, when the occurrence of overcurrent is detected by the overcurrent sensor S3 (YES in step ST4), the drive motor M1 is stopped and the gate 10 is opened and closed by the control of the motor control unit 11 as described above. It is stopped (steps ST5 and ST6).

In this way, when there is an obstacle near the gate 10 or when an overcurrent flows through the drive motor M1 due to actual contact with the obstacle, this can be immediately detected. is there.

In this way, in the gate opening / closing system 1 according to the present embodiment, even if there is an obstacle near the gate 10, the presence of the obstacle causes the infrared sensor S2,
Alternatively, it is detected by the ultrasonic sensor S1 and the operation of the drive motor M1 is immediately stopped by this detection signal, so that the safety at the time of opening and closing the gate can be significantly improved.

Further, even if the gate 10 and the obstacle come into contact with each other, the drive motor M1 is contacted when the obstacle comes into contact with the obstacle.
Is detected, and the rotation of the drive motor M1 is stopped in response to the detection signal, the safety can be further improved.

Although the gate opening / closing system of the present invention has been described above based on the illustrated embodiment, the present invention is not limited to this, and the configuration of each part is an arbitrary configuration having the same function. Can be replaced with

For example, in the above embodiment, the infrared sensor S2 is used as a sensor for detecting the presence of an obstacle between the frontage.
Although the ultrasonic sensor S1 is used as a sensor for detecting an obstacle existing in the turning direction of the door body 4, the present invention is not limited to this, and other sensors may be used. it can.

In the above-described embodiment, when the vehicle 7 approaches the gate 10, this is detected and the gate 10 is automatically detected.
And the vehicle 7 is separated from the gate 10, the gate 1
Although the example of operating to automatically close 0 has been described, the present invention is not limited to this, and
It is also possible to configure the opening operation by a switch operation.

Further, in the above-mentioned embodiment, the flip-up type gate installed at the entrance of the garage has been described.
The present invention is not limited to this, and can be applied to a flip-up gate used for other purposes.

[0031]

As described above, in the gate opening / closing system according to the present invention, the obstacle existing between the columns is detected by the second sensor, and the obstacle existing in the turning direction of the door body is the first. When the presence of obstacles is detected by the first and second sensors, the drive motor is stopped. Therefore, contact between the gate and the obstacle can be prevented, and safety can be improved.

Further, in the unlikely event that the gate comes into contact with an obstacle, an overcurrent flowing in the drive motor is detected and the drive motor is immediately stopped by this detection signal, so that the safety can be further improved. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a gate opening / closing system according to an embodiment of the present invention.

FIG. 2 is a side view of the gate opening / closing system according to the embodiment of the present invention.

FIG. 3 is a block diagram showing a detailed configuration of a control unit.

FIG. 4 is a flowchart showing an operation of the gate opening / closing system according to the embodiment of the present invention.

[Explanation of symbols]

1 Gate opening / closing system 2a, 2b prop 3a and 3b arms 4 door body 5 control unit 6 mobile units 7 vehicles 8 communication devices 9a, 9b bracket 10 gate 11 Motor control unit M1 drive motor S1 ultrasonic sensor (first sensor) S2 Infrared sensor (second sensor) S3 Overcurrent sensor (3rd sensor)

Claims (5)

[Claims] 1. A door body, arms attached to both ends of the door body, and columns provided upright at both ends of the frontage, and the end portions of the arms are rotatable with respect to the columns. A system for controlling a flip-up type gate that supports and pivots the door by rotating the arm by a drive motor to open and close the opening of the frontage. A first sensor installed at a proper place on the body for detecting an obstacle in the vicinity of the door body, and a motor control means for stopping the drive of the drive motor when a detection signal is given from the first sensor. And a flip-up type gate opening / closing system. 2. The flip-up type gate opening / closing system according to claim 1, further comprising: a second pillar which is arranged on columns which are erected at both ends of the frontage and which detects an obstacle existing between the columns. A sensor, and the motor control means includes the first sensor or the second sensor.
The opening / closing system of the flip-up type gate, wherein the drive of the drive motor is stopped when a detection signal is given from any one of the sensors. 3. The flip-up type gate opening / closing system according to claim 1, wherein the overcurrent is detected in a drive motor that turns the arm and the door body. The motor control means stops the drive of the drive motor when a detection signal is given from at least one of the first to third sensors. A flip-up gate opening / closing system. 4. The flip-up type gate opening / closing system according to claim 1, wherein the first sensor is an ultrasonic sensor. 5. The flip-up type gate opening / closing system according to claim 2, wherein the second sensor is an infrared sensor.