| 摘要 |
An automatic positioning winder comprises a lower cover (1), an upper cover (2) fixedly connected with the lower cover (1), a winding device quipped between the lower and upper covers, entering and outgoing line holes (10, 11) formed in the lateral walls of the lower and upper covers respectively. The winding device consists of a centre pillar (34) provided in center of the upper part of the lower cover, a turning wheel (4) sleeved on the centre pillar, a brake component (5) provided in the upper part of the lower cover and a vulture spring (6) fixed inside of the turning wheel. An annular groove (7) is formed on the bottom part of the turning wheel and the bottom of the annular groove is flat. A positioning device (8) is provided in the annular groove for separating the annular groove. The annular groove is divided into guiding groove (9) by the positioning device. The brake component can be embedded into the guiding groove and moves relatively along the guiding groove (9) when the turning wheel (4) rotates.
|
