Push type switch

摘要

A push type switch which enables an operator to obtain an upscale impression when he operates the push type switch. A switch body 3 is rigidly fixed to a printed wiring board 5 . A casing 7 having a plurality of guide grooves 71 h is fixed to the printed wiring board 5 . A plurality of rails 91 a provided on a knob 9 capable of transmitting a pushing force to the switch body 3 are slidably inserted into the guide grooves 71 h such that the knob 9 can slide on the casing 7 . A grease is applied to the guide grooves 71 h and the rails 91 a. The viscosity of the grease is set to be within a range of 1000 to 2750 Pa.