JP2008056469A - Elevator door safety device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To greatly improve the safety of users by avoiding the fingers or the like of users from being pinched in a gap between a car door and a car entrance when opening and closing the car door. <P>SOLUTION: When a passenger car 2 approaches a target floor or arrives thereat, an ultrasonic sensor 4 arranged in a gap between the upper part of the car door 3 and a curtain board 5 checks whether any obstacle exists or not near the car door 3. When detecting any obstacle, it is determined that users abnormally approach or contact with the car door 3 and announces a caution message. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator door safety device that ensures the safety of an elevator user who is in contact with or close to a car door in a car.

  In an elevator system installed in a building or the like, various safety measures have been studied from the viewpoint of user safety.

In particular, when opening and closing the car door, a user's finger or the like may be caught in a gap between the car door and the car entrance. Conventionally, there are various techniques for preventing such finger pinching. For example, there is a safety device at the entrance of the elevator that prevents an accident that a passenger in the car tries to stop the door and the hand is inserted through the gap of the car door when the door is starting to close. (Patent Document 1)
In addition, a safety device for an elevator door that issues a warning when a human body or an object is abnormally approaching the elevator door on the elevator hall side has been proposed (Patent Document 2).
JP-A-10-265156 Japanese Patent Laid-Open No. 2003-34162

  However, the above conventional example relates to a device that prevents a hand from being caught in an elevator door, and is safe regardless of the position of the user in the car when the hand is not caught. From the above point of view, no measures have been taken.

  In view of the above circumstances, the present invention can greatly improve the safety of a user even when a part of the user's body is in contact with the car door or is abnormally approaching. An object is to provide an elevator door safety device.

  In order to achieve the above object, the present invention provides an obstacle detection means for detecting that a user or the like is in contact with or close to a car door in a car and outputting an obstacle detection signal, and the obstacle. When an obstacle detection signal is output from the detection means, a notification means is provided for notifying a caution message so that a user or the like leaves the car door.

  In another aspect, when opening and closing the car door, when an obstacle detection signal is output from the obstacle detection means, a user or the like is notified of a caution message so as to leave the car door. ing.

  Furthermore, in another aspect, when opening / closing the car door, the vehicle is provided with door opening / closing prohibiting means for prohibiting the opening / closing of the car door while the obstacle detection signal is output from the obstacle detection sensor. Yes.

  The obstacle detection means is an ultrasonic sensor that is disposed between the upper part of the car door and the curtain and transmits ultrasonic waves toward the car door. Further, the notification means generates an audio signal.

  According to the present invention, even when a user's finger, body, luggage, or the like is in contact with the car door or is abnormally approaching, a warning message is notified so as to leave the car door. Therefore, the safety of the user accompanying the opening and closing of the car door can be improved.

  In addition, even when a user's finger, body, or luggage is in contact with the car door or when it is abnormally approaching, the car door is prohibited from being opened or closed. It is possible to improve the safety of the user accompanying the opening and closing of the door.

  FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator door safety device according to the present invention.

  As shown in FIG. 1, this elevator door safety device is provided in the elevator control device 1 and the car 2, and detects when a user or baggage contacts or abnormally approaches the car door 3. And an ultrasonic sensor 4 for outputting an obstacle detection signal.

  The elevator control device 1 outputs each landing call information output from the landing call input device and the in-car call input device 6 that generates destination floor call information when operated by a user in the car 2. Depending on the destination floor call information, etc., the hoisting machine, the car door control device for opening and closing the car door 3, the landing landing door control device for opening and closing the landing door 11 (see FIG. 2), etc. are controlled. Transport users.

  In particular, the elevator control device 1 in this embodiment includes an obstacle detection signal input unit 9 and a notification unit 10 in terms of its function, and an obstacle detection signal output from the ultrasonic sensor 4 is input. The notification unit 10 generates a caution message such as an audio signal, for example, and notifies it from a speaker provided in the car 2. As another form, when the obstacle detection signal output from the ultrasonic sensor 4 is input, the car door control device is instructed to prohibit the opening and closing of the door.

  The ultrasonic sensor 4 is disposed in the gap between the upper part of the car door 3 in the car 2 and the curtain plate 5, and when there is any obstacle in the detection area (in the sensor sensing unit) 8 using ultrasonic waves, this is detected. It detects and outputs an obstacle detection signal to the elevator control device 1.

  Next, the operation of this embodiment will be described with reference to the schematic configuration diagram shown in FIG. 1, the side view of the car shown in FIG. 2, and the flowchart shown in FIG.

  First, when hall call information is output from each hall call input device (not shown), or when destination floor call information is output from the in-car call input device 6, the elevator control device 1 causes the hall call information to be output. Or the hoisting machine, the car door control device, the landing door control device, etc. are controlled so as to correspond to the destination floor call information, the preset driving pattern, etc., and the car door 3 and the landing door 11 are closed. After that, raising and lowering of the car 2 is started (step S1).

  When the car 2 approaches the landing floor during the elevator travel, the obstacle detection signal input unit 9 of the elevator control device 1 checks whether an obstacle detection signal is output from the ultrasonic sensor 4. When the obstacle detection signal is output from the ultrasonic sensor 4 (step S2), a warning message is generated by the notification unit 10, and the door 7 opens from the speaker 7 in the car 2. Note the door. A warning announcement such as “Please” is notified and the user in the car 2 is cautioned (step S4). Further, when the obstacle detection signal is not output from the ultrasonic sensor 4, the user or the like is not in a position close to the car door 3, so such a caution announcement is omitted (step S3).

  Then, when the car 2 reaches the destination floor, the obstacle detection signal input unit 9 of the elevator control device 1 checks again whether or not the obstacle detection signal is output from the ultrasonic sensor 4. . When the obstacle detection signal is not output from the ultrasonic sensor 4 (steps S5 and S6), it is determined that the user's finger or body is away from the car door 3, and the car door control device and the landing door control device. Is controlled, and the car door 3 and the landing door 11 are opened (step S8).

  Further, when the obstacle detection signal is output from the ultrasonic sensor 4 when the car 2 reaches the destination floor (steps S5 and S6), the elevator control device 1 causes the car door control device and the landing door. With the control device controlled, the car door 3 and the landing door 11 are closed, and a caution announcement such as “The door opens. Please leave the door” is given from the speaker 7 in the car 2. Attention is given to the user and the time counting operation is started (step S9).

  If no obstacle detection signal is output from the ultrasonic sensor 4 until a predetermined time elapses (step S10), the elevator control device 1 causes the user's finger or body to move to the car door. 3, the car door control device and the landing door control device are controlled, and the car door 3 and the landing door 11 are opened (step S <b> 14).

  Further, when the obstacle detection signal continues to be output from the ultrasonic sensor 4 even after a predetermined period of time has elapsed (step S10), the elevator control device 1 causes the speaker 7 in the car 2 to “door”. A warning announcement such as “Please open from the door.” Is performed again (step S11), and it is checked again whether an obstacle detection signal is output from the ultrasonic sensor 4.

  If no obstacle detection signal is output from the ultrasonic sensor 4 (step S12), the elevator control device 1 determines that the user's finger or body has left the car door 3. Then, the car door control device and the landing door control device are controlled, and the car door 3 and the landing door 11 are opened (step S14).

  In addition, even if a predetermined time elapses and a caution announcement such as “The door opens. Please leave the door” from the speaker 7 in the car 2 again, the ultrasonic sensor 4 When the obstacle detection signal continues to be output (step S12), the elevator control device 1 keeps the user's finger or body in contact with the car door 3, and when the car door 3 is opened as it is, the car door 3 It is determined that there is a possibility that the user may fall into the landing, and the hoisting machine 7 and the like are controlled with the car door 3 and the landing door 11 closed, and the car 2 is moved up and down toward the next destination floor. Is started (step S13).

  Thus, in this embodiment, when the car 2 approaches or reaches the destination floor, the ultrasonic sensor 4 disposed in the gap between the upper part of the car door 3 and the car curtain plate 5 is used. When any obstacle is detected, it is determined that the user's finger, body, or the like is in contact with the car door 3 or is abnormally approached, and the speaker 7 in the car 2 Opened. Please leave the door. " For this reason, it is possible to prevent an unexpected situation in which the user falls into the landing area by opening the car door 3 while leaning on the car door 3, and the safety of the user can be greatly improved.

  Further, in this embodiment, when the car 2 reaches the destination floor, any obstacle is detected by the ultrasonic sensor 4 disposed in the gap between the upper part of the car door 3 and the car curtain plate 5. Opening and closing of the car door 3 was prohibited when For this reason, it is possible to reliably prevent the occurrence of an unexpected situation in which the user falls into the landing area by opening the car door 3 while leaning against the car door 3, and the safety of the user can be greatly improved. it can.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows one Embodiment of the elevator door safety device by this invention. The side view inside a passenger car shown in FIG. The flowchart which shows the operation example of the elevator door safety apparatus shown in FIG.

Explanation of symbols

1: Elevator control device 2: Ride car 3: Car door 4: Ultrasonic sensor (obstacle detection means)
5: Curtain 6: Call input device in the car 7: Speaker 8: Detection area 9: Obstacle detection signal input unit 10: Notification unit 11: Landing door

Claims (5)

Obstacle detection means for detecting that a user etc. is in contact with or close to the car door in the car and outputting an obstacle detection signal;
When an obstacle detection signal is output from the obstacle detection means, notification means for notifying a caution message so that a user or the like leaves the car door;
An elevator door safety device characterized by comprising: Obstacle detection means for detecting that a user etc. is in contact with or close to the car door in the car and outputting an obstacle detection signal;
When opening and closing the car door, when an obstacle detection signal is output from the obstacle detection means, a notification means for notifying a caution message so that a user or the like leaves the car door;
An elevator door safety device characterized by comprising: The elevator door safety device according to claim 2,
When opening and closing the car door, while the obstacle detection signal is output from the obstacle detection sensor, door opening and closing prohibiting means for prohibiting the opening and closing of the car door,
An elevator door safety device characterized by comprising: In the elevator door safety device according to any one of claims 1 to 3,
The obstacle detection device according to claim 1, wherein the obstacle detection means includes an ultrasonic sensor that is disposed between an upper part of the car door and the curtain and transmits an ultrasonic wave toward the car door. In the elevator door safety device according to claim 1 or 2,
The elevator door safety device, wherein the notification means generates an audio signal.

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