Patent ID: 7503231

Claim:
A sensor support assembly of a displacement-detection device for detecting a relative displacement of a movable member with respect to a fixed member, said assembly including a support, a displacement-detection sensor fixed to a sensor-fixing section of said support, and a flexible wiring member fixed to said support and provided with lead conductors electrically connected to electrode terminals of said displacement-detection sensor, said displacement-detection sensor performing signal detection under a state where said displacement-detection sensor is in contact with an information medium attached to said movable member or said fixed member along a perimeter thereof, information being recorded on said information medium with a predetermined pitch, said support comprising an attaching section to be fixed to said fixed member or said movable member, a pair of first spring arms extended from said attaching section, a first turn-back section coupled to top ends of said pair of first spring arms, a pair of second spring arms extended from said first turn-back section toward a returning direction, a second turn-back section coupled to top ends of said pair of second spring arms, a pair of third spring arms extended from said second turn-back section toward another returning direction, and said sensor-fixing section coupled to top ends of said pair of third spring arms, bending angles of said pair of first spring arms and said pair of third spring arms and a bending angle of said pair of second spring arms canceling each other out, said attaching section, said pair of first spring arms, said first turn-back section, said pair of second spring arms, said second turn-back section, said pair of third spring arms and said sensor-fixing section being formed by a unitary member.