JPS6016556B2 - automatic door device - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in automatic door devices.

In an automatic door device in which a mat switch S, which is a subordinate mat switch, is provided, a human body may be attached to the mat switch S. When a person stands on the door, the door swing circuit is turned on and the door 2 opens, making it easy for a person to enter and exit.

However, if a human body stops on the threshold, the door opening circuit force of the mat switch becomes N state, and the door 2 begins to close, causing the human body to become caught in the door, which is dangerous. The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to provide a second human body detector that detects a human body on the threshold, so that when the human body once stops on the threshold, However, it is an object of the present invention to provide an automatic door device in which safety to the human body is maintained by keeping the door open by the action of the second human body detector.

The present invention will be explained in detail below with reference to Examples.

In Fig. 1, mat switches S are installed inside and outside the threshold 1 of the automatic door device (in the embodiment, the mat switch S is the first human body detector that detects human bodies in front and behind the door). A second human body detector such as an ultrasonic switch S2 constituted by a transducer that transmits and receives sound waves in the lintel area is provided at the lintel 3. Further, the control switch S3 is turned on and off by a control switch operating metal fitting 6 provided at the upper end of the door 3, and when the door 2 is opened enough to stand on the threshold 1, the control switch S3 is turned on and off. It is provided at a position where it can be turned on. And mat switch S, ultrasonic switch S2 and control switch S3
As a result, the motor M and the gear 4 are operated via the automatic door circuit in the automatic door circuit box 9, and the belt 10' between the pulleys 8, 8 opens and closes the door 2 suspended by the hanging fitting 7. Fig. 2 shows an embodiment of the wiring diagram of the present invention, in which the terminal of the mat switch S, is connected in parallel to the human body detection terminal of the automatic door circuit, and the output contact of the ultrasonic switch S2 is connected in parallel to the human body detection terminal of the automatic door circuit. It is connected in parallel to the human body detection terminal of
What is the ultrasonic switch S2 and the human body detection terminal of the automatic door circuit?
They are connected via a control switch S3.

When a human body is placed on the mat switch S, the door begins to open, and the door is opened to the point where the human body is standing on the threshold, the control switch operation fitting 6 provided at the upper end of the door is activated. Control switch S3 is O
When the N state is reached and a person stands on the threshold, the door closing circuit of the automatic door circuit is turned on, but the ultrasonic switch is turned on and the door 2 does not begin to close.
When the human body is neither on the mat switch S nor on the threshold, the ultrasonic switch is turned OFF and the door begins to close, and the control switch operating bracket 6 turns the control switch S3 OFF, detecting the door as a human body. Even if the ultrasonic switch is turned on again, the door will not start opening. As described above, the present invention is equipped with a second human body detector that detects a human body on the threshold, so even if a human body stops on the threshold, the door will not start closing, ensuring safety for the human body. It is sufficient to transmit the drip and the sound waves of the second human body detector only to the threshold range, and a simple detector is sufficient.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the present invention, and FIG. 2 is a wiring diagram of the present invention, where 1 is a threshold, 2 is a door, and 3 is a lintel. Figure 1 Figure 2

Claims (1)

[Claims] 1. An output contact of a first human body detector that detects a human body in front of and behind the door is connected to a human body detector terminal of an automatic door circuit, and the opening and closing of the door is controlled by this automatic door circuit. The automatic door device is characterized in that a second human body detector is provided to detect a human body on the threshold, and the output contact of the second human body detector is connected in parallel to the human body detection terminal of the automatic door circuit. automatic door device. 2. The automatic door device according to claim 1, further comprising a second human body detector constituted by an ultrasonic switch that transmits ultrasonic waves to a threshold area. 3. A control switch is provided between the output contact of the second human body detector and the human body detection terminal of the automatic door circuit, and the control switch is set between the door fully closed state and the open state where no human body can stand on the threshold. Then it is in the OFF state,
Claim 1 or 2, characterized in that the second human body detector is configured to be in an ON state and operate in a range from an open state where a human body can stand on the threshold to a fully opened state. The automatic door device described in paragraph 2.