Leaf string type double-throw contact assembly

Details Leaf string type double-throw contact assembly Leaf string type double-throw contact assembly

H - Electricity

01

H

306/353

H01H 1/50 (2006.01) H01H 1/26 (2006.01)

Patent

CA 1068318

ABSTRACT OF THE DISCLOSURE The field of art to which the invention pertains includes the field of miniature relays and electrical switches wherein reliable contact without substantial con- tact bounce is important. Known double-throw contact assemblies have the disadvantages that when contact is made, it is done so in a more or less uncontrollable manner. Accordingly, for such known contact assemblies an exten- sive adjustment procedure is necessary in order to provide a contact force sufficient for insuring a good contact resistance. A further disadvantage of such double-throw contacts resides in the fact that) in the contacting posi- tion, the armature or actuator member is in engagement with the flexible arm, thereby permitting undesirable oscilla- tions and bouncing or chattering of the armature to adverse- ly affect the point of contact The present invention over- comes these defects by providing a double-throw contact assembly in which each contact arm is fixed adjacent one of its ends at a clamp point and has a free end movable into and out of contact with one of the break and make con- tacts, In their relaxed state, the arms converge at the clamp point from a bend intermediate the free end and the clamp point, thereby to define two linear portions or segments for each arm, a first straight segment for each arm extending from the clamp point to the bend, and a second straight segment for each arm extending from the bend to the free end of the arm.

243935

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