| 摘要 |
<p>PURPOSE:To reduce sliding resistance between a 1st and 2nd slide members and a guide means guiding its linear reciprocating motion by providing a 1st and 2nd regulating sections regulating the movement of slide members and a 1st and 2nd projections in press contact respectively onto the regulating sections so as to cancel the angular moment caused in the 1st and 2nd slide members. CONSTITUTION:The angular moment caused in the 1st and 2nd slide members 16, 17 by a tensile spring 18 around a contact point between locking hole 25 and a locking projection 26 formed to the 1st and 2nd slide members 16, 17 is cancelled together by providing the 1st and 2nd regulating sections 38, 39 regulating the movement of at least one of the 1st and 2nd slide members 16, 17 and providing the 1st and 2nd projections 40, 41 abutting on the regulating sections to part of the slide members opposed to the regulating sections 38, 39 respectively. Thus, the sliding resistance caused between the 1st and 2nd slide members 16, 17 and the guide means 23, 24 guiding their straight forward reciprocating movement is much reduced.</p> |
