| 摘要 |
A slide held in its initial position by a helical tension spring, carries at least one contact bridge, comprising a pair of movable contacts which cooperate with opposite contacts preferably contacts that are fixed to a housing. Between the slide and an operating plunger, a substantially C-shaped snap spring is clamped in inclined position, by which the slide and the operating plunger are retained in their initial positions. Upon shifting the operating plunger in a selected direction, the inclined spring is righted and, after passing its neutral position, displaces the slide and the parts supported thereon abruptly against the fixed contacts. A particularly advantageous switching characteristic (shortening of the operating distance in forward switching) is obtained by providing that the side portions of the C-shaped snap spring butt against a stop in the housing, so that the tilting radius of the snap spring is reduced.
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