| 摘要 |
A piston device for the controlled rotatable movement of a closing element (D) anchored to a stationary support structure (W) including a tubular body (10) removably insertable into at least one seat (S) of a hinge device (H), an actuating head (20) external to the tubular body (10), a plunger member (30) slidably movable unitary with the actuating head (20) between a retracted end position and an extended end position, elastic contrast means (50) acting on said plunger member (30) for the returning thereof from the retracted end position to the extended end position and a working fluid acting on the plunger member (30) to hydraulically counteract the action thereof. A hinge device in which the piston device is removably insertable. |
