Roller blind allowing upper and lower position limits to be set and damper thereof
AssigneeSunmaster Blinds Limited
InventorYI-CHIN TAO
Life of this patent
Estimating the term…
Abstract
Disclosed are a roller blind allowing an upper position limit and a lower position limit to be set and the damper of the roller blind. The damper allows the upper position limit and the lower position limit to be set and includes an inner tube, a first sliding base, a first position-limiting base, and a second position-limiting base. When a blind fabric is driven by a linkage assembly, the first sliding base is driven by the linkage assembly and ends up pushed against the first position-limiting base or the second position-limiting base to stop the linkage assembly from driving the blind fabric. The blind fabric can therefore be limited in position whether it is raised or lowered.
Claims10
A damper allowing an upper position limit and a lower position limit to be set, for use to limit a blind fabric in position, wherein the blind fabric is able to be driven by a linkage assembly in order to be raised or lowered, the damper allowing the upper position limit and the lower position limit to be set comprising:
- an inner tube provided in the linkage assembly;
- a first sliding base provided on the inner tube and coupled to the linkage assembly, wherein the first sliding base is driven to rotate and displace on the inner tube by the linkage assembly;
- a first position-limiting base provided on the inner tube and adjacent to a first side of the first sliding base;
- and
- a second position-limiting base provided on the inner tube and adjacent to an opposite second side of the first sliding base;
- wherein when the blind fabric is lowered by the linkage assembly, the first sliding base is driven to rotate and displace on the inner tube toward the first position-limiting base by the linkage assembly, and when the first sliding base is pushed against the first position-limiting base, the first position-limiting base causes the first sliding base to stop the linkage assembly from lowering the blind fabric;
- wherein when the blind fabric is raised by the linkage assembly, the first sliding base is driven to rotate and displace on the inner tube toward the second position-limiting base by the linkage assembly, and when the first sliding base is pushed against the second position-limiting base, the second position-limiting base causes the first sliding base to stop the linkage assembly from raising the blind fabric.
A roller blind allowing an upper position limit and a lower position limit to be set, for use to limit a blind fabric in position, the roller blind allowing the upper position limit and the lower position limit to be set comprising:
- a linkage assembly comprising an outer tube connected to the blind fabric, wherein the blind fabric is able to be driven by the outer tube in order to be raised or lowered;
- an inner tube provided in the outer tube;
- a first sliding base provided on the inner tube and coupled to the outer tube, wherein the first sliding base is driven to rotate and displace on the inner tube by the outer tube;
- a first position-limiting base provided on the inner tube and adjacent to a first side of the first sliding base;
- and
- a second position-limiting base provided on the inner tube and adjacent to an opposite second side of the first sliding base;
- wherein when the blind fabric is lowered by the linkage assembly, the first sliding base is driven to rotate and displace on the inner tube toward the first position-limiting base by the outer tube, and once pushed against the first position-limiting base, the first sliding base drives the outer tube to stop the linkage assembly from lowering the blind fabric;
- wherein when the blind fabric is raised by the linkage assembly, the first sliding base is driven to rotate and displace on the inner tube toward the second position-limiting base by the outer tube, and once pushed against the second position-limiting base, the first sliding base drives the outer tube to stop the linkage assembly from raising the blind fabric.
Dependencies are inferred from the claim text.