| 摘要 |
PROBLEM TO BE SOLVED: To prevent customer's fingers and the like from getting caught in a shutter.SOLUTION: In the configuration in which a pair of right and left projections 4a, 4b projecting in an opening/closing direction are provided at the tip of a shutter 3 and light-emitting means 5a and light-receiving means 5b of a detection sensor for detecting a customer's hand or finger are provided facing each other in the projections 4a, 4b, when output of the light-receiving means 5b of the detection sensor changes in the course of closing operation of the shutter 3, the shutter 3 is controlled for opening operation. |
