| 摘要 |
PROBLEM TO BE SOLVED: To efficiently perform an attachment operation in a narrow space, such as the attachment of a member to an elevator door device.SOLUTION: When a multi-optical axis sensor 11 is attached to a car door 1, the multi-optical axis sensor 11 is pressed onto a bent portion 10 of the car door 1, a bolt 30 is inserted so that a hole 11a of the multi-optical axis sensor 11 is matched to a hole 10a of the bent portion 10, a female screw member 31 is held and pressed onto the inside of the bent portion 10 of the car door 1, and the bolt 30 is screwed to a tap hole 34 through a recess 35 of the female screw member 31. Thus, the distal end of the bolt 30 is guided by the recess 35 and smoothly screwed to the tap hole 34. |
