| 摘要 |
<p>A linear actuator with a chain, with adjustable stroke, comprises a box-shaped casing (1) which houses a chain (2), wound inside the casing (1) and which can be driven by drive means (3); between the casing (1) and the chain (2) means are envisaged which are designed to control the locking of the chain (2) unwinding stroke, said means consisting of an insert (12) which may be removed from the chain (2) and may be attached to the latter to allow the predefinable adjustment of the value of the chain (2) unwinding stroke, and a sensor (15) which detects the passage of the insert (12) when the latter is attached to the chain (2). <IMAGE></p> |
