| 摘要 |
PROBLEM TO BE SOLVED: To provide a single-pole double-throw trigger switch with smooth operation and high waterproof dustproof performance. SOLUTION: The trigger switch has a head part of a movable contact piece operating part 12 in a spherical head part 120, and press-fitting the movable contact piece operating part 12 into the center part of a waterproof dustproof packing, while pinching a skirt of the waterproof dustproof packing with a box and a cover. A movable contact piece fulcrum main body 52 structures a support part 521 with its one end folded in a contrary direction to a tab terminal 51 and formed in extension in a horizontal direction, is provided with a movable contact piece support member 5 with a pair of positioning protrusions 522 at an upper side near a tip part of the support part 521. As a movable contact piece member, its shape structure as a whole including a shape structure of a pair of movable pieces having a movable contact at a tip part is combined for use as a single-pole double-throw switch with a movable contact piece member structured in plane symmetry as to a face crossing a common plane where the both movable contact pieces are driven. COPYRIGHT: (C)2007,JPO&INPIT
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