| 摘要 |
<p>A traction limiting device for winches comprising: a fixed framework (2), constituted by two end cross-members (3,4) which are mutually connected by two parallel longitudinal members (5,6); two cross-members (7,8) which are provided with bushings for sliding along the longitudinal members (5,6), have means (9) for fixing below the winch, are mutually co-planar, and are parallel to the cable winding drum; retainer means (10) with adjustable strain which are interposed between the fixed framework (2) and one of the sliding cross-members; and a microswitch (18) which is circuitally connected to the power supply of the winch and is adapted to interrupt it when a relative motion of the sliding cross-member with respect to the fixed framework (2) is sensed. <IMAGE></p> |
