# US 2008/0185109 A1 · Reeling device for curtain cords

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- Number: US 2008/0185109 A1
- Document ID: US20080185109A1
- Status: Published application
- Kind: A1
- Application number: 11/670,493
- Filed: 2007-02-02
- Published: 2008-08-07
- Earliest claimed: 2007-02-02
- Inventors: Ker-Min Lin
- Web page: https://patentgrep.com/patent/US20080185109A1

## CPC

- E06B 9/262: with flexibly-interconnected horizontal or vertical strips; Concertina blinds {, i.e. upwardly folding flexible screens}
- E06B 9/62: Counterweighting arrangements (E06B9/60 takes precedence)
- E06B 2009/2625: {Pleated screens, e.g. concertina- or accordion-like}
- E06B 2009/3222: {Cordless, i.e. user interface without cords}
- E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00)

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The reeling device as claimed in claim 1, wherein the S-shaped resilient coil has one distal end penetrating a drum secured on one of the adjacent two of the multiple guiding wheels and winding on the drum rotatably mounted on a shaft of the guiding wheels.

### Claim 3 (depends on 2)

The reeling device as claimed in claim 2, wherein the S-shaped resilient coil has another distal end penetrating a drum to secure on another of the adjacent two guiding wheels and winding on the drum that is rotatably mounted on a shaft of the other of the adjacent multiple guiding wheels.