| 摘要 |
<p>The mechanism consists of a housing (1) with a lid (6) fitted at one end of the spool housing. The lid contains a toothed wheel (7) with peripheral toothing (8) and interfacial cogging (9, 19). The spool (2) has an extension (17) with a thread (10) on which the toothed wheel (7) is rotatingly fitted. The engagement between the coggings is produced by a relative rotary movement between a toothed wheel (7) and spool extension (17). The blocking on the toothing (8) of the wheel (7) is produced by the swinging movement of a catch (25) due to the action of an inertia element (22). To ease the meshing movement of the edge (29) with the tooth flanks (3) both edge and flanks are chamfered at an angle in the direction of the spool shaft.</p> |
