| 摘要 |
In the linear actuator, in particular for actuating cog meshes, a frame (1) is equipped with an electric motor (2) provided with a pinion (3), which pinion (3) enmeshes, with relative axial slidability, with a crown wheel (5) of a rotating intermediate body (4), which can slide axially. A screw (8), coupled with a lead screw afforded coaxially in the body (4), is constrained to the frame (1) so as to be able to slide axially without rotating. The screw (8) constitutes a mobile organ of the actuator. A calibrated spring (7) operates with predetermined force between a group constituted by the body (4) and the screw (7) and the frame (1). At least one switch (9), which controls the electric motor (2), is predisposed to be actuated by the rotating body through deformable elastic transmission means. <IMAGE> |
