Patent ID: 7717103

Claim:
An apparatus comprising: a support member; a rotating member rotatably mounted on the support member at a first pivot point of the support member, the rotating member being biased toward a rest position against a rotation stop; a lever rotatably mounted on the support member at a second pivot point of the support member, the lever comprising first and second lever arms and being biased toward a cocked position; and a linkage coupling the first lever arm and the rotating member, wherein the support member, the rotating member, the lever, and the linkage are arranged so that: with only substantially negligible force exerted on the second lever arm, the lever assumes its cocked position in response to its bias; in response to an external force exerted on the second lever arm to rotate the lever away from its cocked position against its bias, the first lever arm urges the linkage against the rotating member so as to rotate the rotating member away from its resting position against its bias; and in response to the rotating member being rotated against its bias by the linkage past a release position, the linkage allows the rotating member to rotate to its resting position in response to its bias.