Brake for a cordless blind
AssigneeNewell Window Furnishings, Inc.
InventorsRoger C. Palmer, Richard Coulcher
Life of this patent
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Abstract
A window covering including a head rail, a bottom rail, a window covering material extending between the head rail and bottom rail, a first and second lift cords extending between the head rail and the bottom rail, a spring motor configured to bias the bottom rail toward the head rail, mounted in the bottom rail, and operatively coupled to the first and second lift cords, and a brake mounted in the bottom rail and configured to releasably couple to the first lift cord to prohibit the spring motor from taking up the first cord, prohibiting the bottom rail from being raised or lowered.
Claims20
A window covering comprising:
- a head rail;
- a bottom rail;
- a window covering material extending between the head rail and bottom rail;
- a pair of lift cords extending between the head rail and bottom rail;
- a biasing element configured to bias the bottom rail toward the head rail;
- a brake configured to selectively prohibit winding or unwinding of the lift cords from the biasing element;
- a remote user interface coupled to the brake for selectively operating the brake without having to reach the head rail.
A window covering mounted in a window frame, the window blind comprising:
- a head rail;
- a bottom rail;
- a window covering material extending between the head rail and bottom rail;
- at least one lift cord extending between the head rail and the bottom rail;
- a first biasing element operatively coupled to the at least one lift cord and configured to bias the bottom rail toward the head rail;
- a first guide cord having a first end coupled to the window frame and at least partially located in the bottom rail;
- a brake mounted in the bottom rail and configured to releasably couple to the first guide cord to prohibit the first guide cord from sliding through the brake, thereby prohibiting the bottom rail from being raised or lowered.
A brake assembly for a window covering including a head rail, a bottom rail, a window covering material extending between the head rail and bottom rail, a pair of lift cords extending between the head rail and bottom rail, and a biasing element configured to bias the bottom rail toward the head rail, the brake assembly comprising:
- a brake mounted in the head rail and configured to selectively prohibit winding or unwinding of the lift cords from the biasing element;
- a remote user interface suspended from the bottom rail and operatively coupled to the brake for selectively operating the brake without having to reach the head rail.
Dependencies are inferred from the claim text.