Patent ID: 8186190

Claim:
A key device comprising: a rotating member that is rotated by rotation of a key; an allowing member that is rotated by the rotating member when the rotating member is rotated to a predetermined rotational position; a regulating member that is a separate and discrete part from the allowing member and disposed at one side of the allowing member, that regulates rotation of the rotating member to the predetermined rotational position by not being rotated together with the allowing member when the rotating member is rotated to the predetermined rotational position, and that allows rotation of the rotating member to the predetermined rotational position by being rotated together with the allowing member when the rotating member is rotated to the predetermined rotational position; a pair of holding portions that protrude toward another side of the allowing member and toward one side of the regulating member, respectively; and an urging means mountable on the pair of holding portions for coupling together the regulating member and the allowing member into a subassembly, wherein the urging means retains a side of the regulating member against a side of the allowing member by applying a retaining force along a direction which is substantially orthogonal to the direction that the urging means biases the regulating member.