Ladas & Parry LLP
Function switch for an apparatus
A function switch includes a switch base fixed to an apparatus and formed with a plurality of angularly spaced pitches, a knob, base disposed rotatably within an annular opening in the switch base, an external knob disposed on the switch seat and connected securely to the knob base for co-rotation therewith, and a spring member fixed to the knob base and having a resilient extension portion with engaging tongue slidably engaging the switch base to prevent removal therebetween. The engaging tongue collides against a respective groove to generate a clicking sound when the external knob is turned together with the knob base with respect to the switch base.
Benq Corporation
H H
H01H H01H
inventional additional
Chi-Wen
Chou