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US 2008/0185109 A1Published application
Reeling device for curtain cords
OwnerKer-Min Lininventor
Life of this patent
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Abstract
A reeling device for curtain cords has multiple dual-layer guiding wheels arranged in line and multiple S-shaped resilient coils. Two adjacent guiding wheels are meshed with each other by gear teeth. Each guiding wheel has a cord winding thereon so that the cords can be operated synchronously. Each S-shaped resilient coil is secured on two adjacent guiding wheels and provides the resilient force to balance the curtain weight. Therefore, the cords are adapted to longitudinally attach on the curtain and to control the extension or contraction of the curtain.
Claims3
A reeling device for curtain cords, comprising:
- two plates;
- multiple guiding wheels clamped between the two plates, each guiding wheel has a disk with a toothed periphery, a reel formed on one side of the disk to selectively receive a cord and a shaft formed on the other side of the disk;
- and
- a S-shaped resilient coil mounted on adjacent two of the multiple guiding wheels;
- wherein, the toothed periphery of the multiple guiding wheels are meshed one by one to rotate synchronously.
2 more elements
Dependencies are inferred from the claim text.