Patent ID: 9653223
Date: 2017-05-16
CPC Classifications: F16H,H01H

Claim:
1. A switch comprising: a body case; a movable board that is movably disposed in the body case; a metallic movable contact point disposed in the movable board; a fixed contact point that is provided in the body case to be fixed thereto and on which a lubricating agent is applied, wherein the movable contact point makes pressure-contact with the fixed contact point, and is connected to/disconnected from the fixed contact point corresponding to a position of the movable contact point changing by moving the movable board; and a plurality of grooves formed in a contact portion of the movable contact point with the fixed contact point to be arranged along a sliding direction of the movable contact point; wherein the grooves are formed by lining up projecting portions and concave portions alternately, and extend continuously from one side to another side of the contact portion in the sliding direction; an outer periphery of the contact portion is arc-shaped as viewed from a direction vertical to the sliding direction of the movable contact point; and each groove is formed across the arc-shaped outer periphery in the sliding direction, and is formed in a spindle shape as viewed from a side of the fixed contact point.