| 摘要 |
PROBLEM TO BE SOLVED: To smoothly and safely pass a cart by being securely detected by an optical sensor as a start sensor for an automatic door. SOLUTION: A reflection plate 11 for reflecting an irradiation light from the optical sensor fixed as the start sensor for starting the automatic door is fixed on a bucket part 5 of the cart 1 having the bucket part 5 capable of containing articles such as commodities. The net type bucket part 5 which is hardly detected by the optical sensor is easily and securely detected by the reflection plate 11 fixed on the bucket part 5. COPYRIGHT: (C)2003,JPO
|
