| 摘要 |
PURPOSE:To facilitate operation by crossing a pawl section over an engaging section by the guide of the engaging-piece oppositely contacting surface of the pawl section of a hook body, forward moving the hook body, introducing the engaging piece into an engaging-piece receiving space and bringing the state of locking when a door is closed gradually. CONSTITUTION:When a door 2 is closed gradually, a hook body 15 is moved, and one part of an oppositely contacting surface 19 is brought into contact oppositely with the door oppositely facing surface 7a' of an engaging piece 7a. When door closing operation progresses, the hook body 15 is shifted in the retreat direction by the guide of the oppositely contacting surface 19, and the front end 32a of the stopping piece 32 of a stopping body 30 is abutted against the door oppositely facing surface 7a'. When door closing operation further progresses, the stopping piece 32 is retained to the engaging piece 7a, and the hook body 15 is retreated against the force of a spring 34 toward the position of retreat on the root section side of a projecting section 16. When a pawl section 17 reaches a position facing an engaging hole 7, the hook body 15 is moved in the forward direction by the spring 34 and the pawl section 17 is introduced into a pawl-section receiving space, and the engaging piece 7a is admitted into an engaging-piece receiving space 20. The pawl section 7 and the engaging piece 7a are interlinked, and the door 2 is locked under a closed state. |
