Patent ID: 7275401
Filing Date: 2007-10-02
Classification: H01H,Y10T

Abstract:
1. A key switch having at least one switching position, the key switch comprising: a cylindrical lock configured to be translated upon authorization of a key; a lock holder configured to host the translated cylindrical lock, the cylindrical lock translated along a rotational axis common to the cylindrical lock and the lock holder, wherein the cylindrical lock engages in a form fit with the lock holder when the cylindrical lock is rotated about the rotational axis; a first washer having at least one inner notch; and a second washer having at least one tab sized and configured to: wherein the key switch has a number of switching positions, and the first washer has a number of inner notches corresponding to the number of switching positions; and wherein the first washer is configured to change a position of the inner notches relative to a housing accommodating the key switch or to a holding mechanism for supporting the key switch.