摘要 |
<p>A gearing mechanism (18) in a main body (12) couples to a crank handle and rotates a spool (14). A slide mechanism (26) in the main body maintains engagement with the gearing mechanism and generates linear translation in the spool. The slide mechanism contains an endless screw (36). There is a retaining space (52) in the wall of the main body. One end of the endless screw engages in the retaining space. Built into the retaining space, a shock absorber (40) fits between one end of the endless screw and the wall of the main body.</p> |