| 摘要 |
<p>The winch has a demultiplication unit interposed between an input shaft (43) and a drum. An irreversibility mechanism includes a ratchet wheel (420) cooperating with a ratchet (421), and a hollow shaft (423). The shaft (423) has a shoulder (424) and a conical pinion mounting carrier at its ends, respectively. The pinion is mounted in helical connection on a carrier. The connection is arranged such that the pinion comes close to the shoulder to lock the wheel against the shoulder so as to integrate the hollow shaft to ensure the irreversibility by joining with the ratchet.</p> |
