PIANO HANDLE TYPE SWITCH

PROBLEM TO BE SOLVED: To improve the operation feeling. SOLUTION: Flat spring-receiving parts 24c, 24d are provided on both sides of a spring seat piece 24a at the front edge of an opening/closing piece 24. A compression coil spring whose winding end is formed into a closed end and not ground is used for an inverting spring 30. The flat spring-receiving parts 24c, 24d and the winding end of the inverting spring 30 constitute a slip- preventing means. The slip-preventing means makes the area of contact with the front edge of the opening/closing piece 24 larger than in conventional cases, and thus prevents a slip occurring between the winding end of the inverting spring 30 and the spring-receiving parts 24c, 24d when the opening/closing piece 24 is inverted. This prevents a two-stage sense of click during the operation of a piano handle 43, thus improving the operation feeling. COPYRIGHT: (C)2003,JPO