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 71h is fixed to the printed wiring board 5. A plurality of rails 91a provided on a knob 9 capable of transmitting a pushing force to the switch body 3 are slidably inserted into the guide grooves 71h such that the knob 9 can slide on the casing 7. A grease is applied to the guide grooves 71h and the rails 91a. The viscosity of the grease is set to be within a range of 1000 to 2750 Pa.

主权项

1. A push type switch comprising:
a switch body; a fixing member to which said switch body is rigidly fixed; a movable member slidably supported by said fixing member such that said movable member transmits a pushing force to said switch body; and a grease applied to sliding portions of said fixing member and said movable member, wherein a viscosity of said grease is within a range of 16.7 to 45.8 Pa*s, wherein a guide groove is formed in one of said fixing member and said movable member, and a rail that slides relative to said guide groove is formed on the other of said fixing member and said movable member, and wherein a first grease reservoir is formed in at least one of said guide groove and said rail.