Patent ID: 8096120

Claim:
A movable mechanism comprising: a fixed body; a movable body; a driving member, one end of which is attached to the fixed body and the other end of which is attached to the movable body, for changing the position of the movable body, in which the driving member is composed of a Ni—Ti-based alloy which is a super-elastic body and has shape restorability, and in which the driving member memorizes a linear shape as the original shape; a movable body guide member, which is provided on the fixed body, for guiding movement of the movable body, to cause a sliding movement of the movable body with the movable body guide member, to lower a speed of the movable body when the movable body moves; and a driving member guide member for guiding deformation of the driving member, to set a deformation limit position of the driving member, such that the driving member would not completely restore the linear shape but would have a given curvature, when the movable body moves, wherein the movable body is moved by the shape restorability of the driving member that has been released from being fixed.