Fluid-actuated rotary drive

摘要

The fluid-operated rotary drive device has a stator body (2) and a driving body that is rotated relative to a stator about a rotational axis (4). A rigid coupling bar (48) is extended between the two movable end sections (33) of the bellows. The rigid bar is connected with a movable side of an end section by a hinge unit (51) and is also connected with another movable side of end section by another spaced hinge unit (52).