Key frame and cover member for push button switch

摘要

An elastic projection elastically projecting outward is provided on the lower side and the lateral side of a hard base. The elastic projection functions as a fixing member when a cover member for a push button switch is fitted into a housing of the product. Inside an elastic projection is formed a space. When the elastic projection is pressed from the outside, the space enables the elastic projection which is elastically deformed inward, to proceed into the space. As a result, the elastic projection projecting from an outer peripheral line of the hard base can be elastically deformed so as to retract inwardly in the hard base.