Patent ID: 7929254

Claim:
A carriage comprising an arm to which head supporting members is attached and pivoting in a disk drive device; wherein the arm comprises: two head supporting member attaching surfaces to each of which the head supporting member is attached, a dampening member attaching surface which is on the same side as one of the two head supporting member attaching surfaces and is covered by a dampening member, and an opposite surface which is opposite to the damping member attaching surface and is exposed; and a thickness from a center position between the two head supporting member attaching surfaces to the damping member attaching surface is thinner than a thickness from the center position to the opposite surface, wherein the carriage include a plurality of arms; each of all the arms to which two head supporting members are attached among the plurality of arms comprises: two head supporting member attaching surfaces to each of which the head supporting member is attached, a damping member attaching surface which is on the same side as one of the two head supporting member attaching surfaces and is covered by a damping member, and an opposite surface which is an opposite surface to the damping member attaching surface and is exposed; and a thickness from a center position between the two head supporting member attaching surfaces to the damping member attaching surface is thinner than a thickness from the center position to the opposite surface.