| 摘要 |
PROBLEM TO BE SOLVED: To provide a push lock device without need of forming a step or a slope in a cam groove, and without need of a push spring for pushing a lock pin toward a cam groove side. SOLUTION: As a tip part 33b of the lock pin 33 moves through a cam groove 28 in accordance with operation of an operating member, the lock pin 33 pushes in a first to a fourth spring members 29 to 32 and pass, and after that, the first to the fourth spring members 29 to 32 come to guide progress of the lock pin 33. Accordingly, the cam groove 28 can be a conventional one, without need of forming the step or the slope, and without need of a push spring for pushing the lock pin toward the cam groove 28 side. COPYRIGHT: (C)2008,JPO&INPIT
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