| 摘要 |
<p>A lockable chain winder comprising an outer body [10], a chain _1:8] at least partially in the body, diive means [1.6] to drive the chafiw a winding handle [11] which is operated to extend or igtract the chin from the body, a key cylinder [361 for locking 5 the. chain winder, and a rotatable drive coimponenit [131, which has a thread whiidh engages with the drive means, attachment means [29] on the drive component to attach to the winding handle, and locking means i41' on the.diive coinponent to form pait of a chain Icli ng mech anisam.</p> |
