| 摘要 |
An articulated-chain actuator (11) comprising, within a box-like casing (12), a chain (13) which is guided so as to slide by guides (14) along a preset path (15) leading outside through an opening (16) formed in the box-like casing (12). The chain (13) has an end (17) which is associated with anchoring means (18) for connection to a body to be moved and is coupled to a pinion (20) which is connected to motor means (21). The actuator (11) comprises, within the box-like casing (12), an encoder (23) for adjusting and controlling the activation/deactivation of the motor means (21); the encoder (23) is suitable to stop the chain (13) in preset chosen positions. <IMAGE> |
