| 摘要 |
<p>PROBLEM TO BE SOLVED: To make intrerruptible a passenger who is identified as a person not allowed to pass from passing without exerting any adverse influence on the body of the passenger by allowing a passage interrupting means to stop in a noncontact state when it is predicted that the passenger will touch the passage interrupting means. SOLUTION: A direct reflection type photoelectric switch 202 is fitted as a detecting means which detects a passenger approaching, at a specific position of a rotary shaft 201 for driving a door 20 to open and the operation position of the photoelectric switch 202 is so set that its operation area is in front of the door 20. Consequently, the photoelectric switch 202 rotates together with the door 20 and is able to detect the body of the passenger who is about to collide (touch) against the door 20. When the passenger enters the operation area of the photoelectric switch 202 before the door 20 and is detected, a door opening/closing motor which drives the rotary shaft 201 of the door 20 is turned off, so that the door 20 stops and the detected position.</p> |
