Push-switch
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYasunori YANAI, Yoshikazu YAGI
Life of this patent
Estimating the term…
Abstract
A push switch includes a movable contact, and a drive body. The movable contact includes an annular part with a circular central hole and four leg parts inclined and extruded downward from the outer circumferential end of the annular part by way of a deflection part, formed in a shape bulging upward at the circular central hole side. The drive body includes a flat plate with the lower end abutting against the position of the inner side of the deflection part of the movable contact, and an operation part of a smaller diameter than the abutting position provided on the flat plate, if the operation part is pressed and manipulated at a position remote from the center, a light and responsive click feel is obtained.
Claims3
A push-switch comprising:
- a box-shaped switch case made of an insulating resin, having an open upside, and a plurality of fixed contacts disposed in the concave inner bottom with a plurality of grooves provided in the inner wall, at symmetrical positions from the center of the concave part, with the fixed contacts being electrically connected with terminals extended outward;
- a movable contact formed of an elastic thin metal plate in a shape bulging upward, contained in the concave part of the switch case, having an annular part with a central hole disposed oppositely upward to the fixed contacts, and a plurality of leg parts inclined and extruded downward from the outer circumferential end of the annular part by way of a deflection part, and formed corresponding to the plurality of grooves;
- a drive body having an operation part projecting upward of a flat plate, with the lower end of the flat plate abutting against the deflection part of the movable contact or a position of a smaller diameter than the deflection part, with the abutting position located at a position same as the outside diameter of the operation part in a horizontal direction or at a position at an outer side from the outside diameter of the operation part;
- and
- a cover fixed by covering the concave part upside of the switch case by projecting the operation part of the drive body upward from a middle hole of the movable contact.
Dependencies are inferred from the claim text.