| 摘要 |
A braking device control for the retraction of the tape blade of a retractable blade tape measure (10, 30, 41). The retractable blade tape measure includes a tape measure case (19, 31, 43) and a coiled tape blade (13, 32, 55) inside the case. A retractor mechanism (16, 39, 58) retracts the tape blade into the case and a braking device (27, 40, 61) contacts the coiled tape blade inside the case before the end (15, 34, 57) of the tape blade strikes the case. The braking device (27, 40, 61) reduces or stops retraction of the tape blade before the end of the tape blade strikes the case. |
