| 摘要 |
<p>2 Disclosed is a control device for a cordless blind with willful stop at any positions 3 according to user needs during switching operation. The control device primarily 4 comprises a force-return mechanism, a shaft connector, and a braking buffer mechanism 5 which are all installed inside a same housing. The force-return mechanism has a flat 6 spring bevel gear and an elastic element. One end of the shaft connector is a 7 transmission bevel gear meshed with the flat spring bevel gear. The braking buffer 8 mechanism includes a friction ring and an impeding spring where the friction ring is 9 immovably fixed inside the housing with a wear-proof annular inwall. The impeding 10 spring is tightly plugged into the friction ring with an extrusion to prevent the rotation of 11 the transmission bevel gear. Specifically, the shaft connector has a trigger to change the 12 friction between the impeding spring and the friction ring. )c6 12</p> |
