Push button microswitch with wiping contact effect
AssigneeOmron Tateisi Electronics Co.
InventorYasumichi Fukuma
Life of this patent
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Abstract
A switch is disclosed having a movable piece with a movable contact and a movable plate coil, a fixed terminal provided with a fixed contact facing the movable contact, a movable coil spring with an end being fixed at a standing piece of a common terminal, wherein the other end of the coil spring is coupled to the end of a movable piece, and wherein the movable plate coil is biased by the movable coil spring with one end of the movable plate coil swingably held by a holding piece of the common terminal, and a push-button for pressing the upper portion of the movable coil. The switch has an actuator having a supporting member which rotatably engages with the case, wherein the supporting member is formed in a plane generally perpendicular to a rotary shaft of the actuator.
Claims10
A switch, comprising:
- a movable piece having a movable contact;
- an arcuate movable plate spring projecting from a side surface of the movable piece;
- at least one fixed terminal provided with a fixed contact facing the movable contact;
- a common terminal having a standing piece and a holding piece;
- a movable coil spring having an end fixed to the standing piece of the common terminal, wherein the other end of the coil spring is coupled to an end of the movable piece, wherein the movable plate spring is biased by the movable coil spring, one end of the movable plate spring being swingably held by the holding piece of the common terminal, and wherein the coil spring and the movable plate spring provide wiping and contact pressure of the movable contact on the fixed terminal;
- and
- a push-button for directly pressing the upper portion of the movable coil spring.
Dependencies are inferred from the claim text.