Microswitch

摘要

PCT No. PCT/SU84/00045 Sec. 371 Date Mar. 27, 1986 Sec. 102(e) Date Mar. 27, 1986 PCT Filed Jul. 31, 1986 PCT Pub. No. WO86/01030 PCT Pub. Date Feb. 13, 1986.A microswitch includes a base (1), fixed contacts (2) and movable contacts (3). The movable contacts (3) are connected to a drive member (4) by way of a mechanism for switching the movable contacts having at least two assemblies (7) disposed in symmetry relative to the axis of the drive member (4). Each of the assemblies (7) includes a lever (8) and a spring (9) the outer ends (15,16) of which are interconnected to be capable of swinging angularly relative to each other. One element (8) of these two elements (8, 9) of the assemblies (7) is connected by its inner end (10) to the drive member (4) for swinging angularly relative thereto. Other respective elements (9) of each assembly (7) on which the movable contacts (3) are secured have the form of an integral resilient part (12) the central portion of which has secured thereto the movable contacts (3). The resilient part (12) at the portions thereof between the attachment points thereon of the movable contacts (3) and its outer ends (15) define in each assembly (7) of the mechanism for switching the movable contacts resilient elements (9) arranged in symmetry relative to the axis of the drive member (4) at an angle to each other in any possible position of the drive member (4). Also provided are stop elements (17) for restricting the movement of the outer ends of the assemblies of the mechanism for switching the movable contacts. The attachment points of the movable contacts (3) on the resilient part (12) are located between the stop elements (17) at equal distances therefrom.