Patent ID: 9117599
Filing Date: 2015-08-25
Classification: H01H

Abstract:
1. A key switch, comprising: a base; a keycap disposed above the base and movable between a first position and a second position relative to the base; and a guiding mechanism comprising at least one guiding groove and at least one protrusion, wherein the protrusion has an arc shaped lateral surface facing the guiding groove; a confining mechanism and a frame, the frame having a receiving space, wherein the keycap is placed within the receiving space and the confining mechanism is configured to constrain the keycap within the receiving space, wherein the confining mechanism includes at least one protruding member and at least one recess; wherein the protruding member is disposed at a corner of the keycap, and the recess is disposed on the frame and coupled with the protruding member; wherein when exerted with an external force, the keycap moves from the first position to the second position by the guiding mechanism, and the arc shaped lateral surface of the protrusion and the guiding groove keep a line contact with each other.