| 摘要 |
A retraction apparatus comprising a support housing comprising one or more generally cylindrical spindles, and a retraction assembly mounted on each of the spindles is provided. The retraction assembly comprises a spring member, a generally cylindrical spool member, a retractable cable, a latch member, and a contact wheel member. The spring member is mounted on each of the spindles and affixed to the support housing. The spool member comprising serrated plates is affixed to the spring member. The retractable cable is circularly wound around a cylindrical section defined between the serrated plates of the spool member and extends outwardly from the support housing. The latch member, in engageable communication with the spool member, controls rotation of the spool member. The contact wheel member, in engageable communication with the spool member, via selective drive mechanisms, is rotated to rotate the spool member for retracting the retractable cable. |
