Patent ID: 9523236
Filing Date: 2016-12-20
CPC Classification: E06B

Claim Text:
1. A braking mechanism for a roller shade control system, the braking mechanism comprising: a stationary member comprising at least one recess formed therein, the at least one recess having a bottom wall extending between a first extremity having a first depth and a second extremity having a second depth greater than the first depth; a rotating member rotatable relative to the stationary member, the rotating member being rotatable in a winding direction or an unwinding direction; a connecting assembly operatively connecting the stationary member and the rotating member, the connecting assembly frictionally engaging the rotating member when the rotating member is rotated in the unwinding direction and being frictionally disengaged from the rotating member when the rotating member is rotated in the winding direction, the connecting assembly comprising a braking element located within at least one of the at least one recess, each braking element having a size and shape to engage the bottom wall and the rotating member at the first extremity and to disengage the bottom wall from the rotating member at the second extremity; and wherein the braking element shifts position and is drivable between the first extremity and the second extremity by rotation of the rotating member, and wherein a diameter of the braking element is less than the first depth at the first extremity and is greater than the second depth at the second extremity.