| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the generation of a mistake on installation when a connecting member is mounted on a base member. SOLUTION: An engaging recessed section 15 opened in the forward direction is formed at the front end section of a base member 10, and an engaging recessed section 17 opened in the rear direction is formed at a rear end section. A slot 34 extended in the longitudinal direction is shaped at the front end section of a connecting member 30, and a slot 35 inclined in the longitudinal direction is formed at a rear end section. Engaging shafts 41, 42 coupling the connecting member 30 to the base member 10 by interlinking the engaging shafts 41, 42 to the engaging recessed sections 15, 17 respectively are fitted into each slot 34, 35 movably in the longitudinal direction of the slots 34, 35. The front end section of an operating member 50 is joined rotatably with the engaging shaft 41. A slot 53 moving an engaging shaft hole 53 in the longitudinal direction in cooperation with the slot 35 when the operating member 50 is rotated centering around the engaging shaft 41 is formed at the rear end section of the operating member 50.</p> |
