Patent ID: 6420670
Filing Date: 2002-07-16
Classification: H01H

Abstract:
A push-button type switch comprising:a box having a button movably inserted in an open top of said box, a tubular member extending from an underside of said button and a spring biased between said tubular member and said box, a tongue extending from an underside of said button and a recessed area defined in a surface of said tubular member, said recessed area defined by a polygonal inner periphery and a central member located in a center of said recessed area, a first terminal plate and a second terminal plate respectively extending from a bottom of said box, a board extending from an inner side of said box and a hole defined in a surface of said board, two rods respectively extending from said inner side of said box; a movable member having two slots defined therethrough and said two rods movably received in said two slots, a U-shaped guide member having a leg thereof extending through said movable member and movably engaged with said recessed area, the other leg of said U-shaped guide member inserted in said hole in said board, and an oscillation member having a first end pivotally connected to said second terminal plate, a curved spring having an end fixedly connected to said box and the other end of said curved spring connected to said oscillation member, said tongue contacting said curved spring, a second end of said oscillation member pivoted to contact said first terminal plate when said button is pushed.