| 摘要 |
SOLUTION: A movable body 23 having a blade body 44 takes a storing movement position for storing the blade body 44 in a holder 1 and a projecting movement position B for projecting from the holder 1. In the projecting movement position B, the combination between the slide operation and the pressing operation of an upper engagement/disengagement spring 30 of a cantilever to a finger hold 34 is performed along with the pressing operation to a lower engagement/disengagement part 36 (finger hold) of a lower engagement/disengagement spring 31 of a double-supported beam, and thereby, an upper engagement/disengagement part 33 of the upper engagement/disengagement spring 30 can be engaged to or disengaged from a stepped part 8a of a second engagement/disengagement hole of the holder 1, and the lower engagement/disengagement part 36 of the lower engagement/disengagement spring 31 can be engaged to or disengaged from a front abutment surface 17a of a lower engagement/disengagement part 17 of the holder 1.EFFECT: When in use, a movable body 23 can be prevented from carelessly moving out of a projecting movement position B to a storing movement position.SELECTED DRAWING: Figure 5 |
