Keyboard switch and process for production thereof

摘要

A push-button switch has a housing in which is positioned a switch contact spring driven by the vertical movement of a drive rod comprised of a synthetic resin. The push-button switch further comprises a contact-driving plate spring portion constructed by a bent portion of a plate spring element. The drive rod is formed by mold processing using a support-portion of the plate spring element as a core, and the contact-driving plate spring portion is extended from the drive rod. The drive rod drives the switch contact spring through the contact-driving plate spring portion.