Patent ID: 7949429

Claim:
An actuator system comprising: a plurality of actuators, each of the plurality of actuators including a fixed member and a moveable member; and a drive part for driving each of the plurality of actuators, wherein the fixed member and the moveable member are configured to be relatively moveable in one direction along a predetermined movement axis during driving by the drive part, and to be relatively moveable in either direction along the movement axis upon receipt of an external force during non-driving, each of the plurality of actuators is connected to an adjacent actuator at least at either ones of the fixed members or the moveable members thereof, and wherein the drive part includes: a command generation part that generates a common command signal for driving the plurality of actuators; and a plurality of comparison parts, which are associated with the plurality of actuators, respectively, for controlling a drive timing of each actuator by comparing the command signal with a threshold, and each of the plurality of comparison parts includes a part that can change the threshold.