Winding device for window covering

Details Winding device for window covering Winding device for window covering

1999-05-27

2000-12-12

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Pleating type

With preformed pleats

160173R, 160171R, A47H 500

Patent

active

061584940

ABSTRACT:
The inventive winding device comprises a transmission shaft, a plurality of thread shafts, a plurality of fixing stages and a plurality of cords. The plurality of cords are fixed on corresponding thread shafts, and by the synchronous rotation of the thread shafts with the transmission shaft and the relative rotation and movement of the thread shafts with respect to the fixing stage, the cords can be uniformly wound along the thread of the corresponding thread shafts. Therefore, both ends of the curtain can be moved symmetrically. The thread shafts and the transmission shaft do not need to assemble first, the assembling task is simplified. The lowest point is more definite such that the curtain can be easily controlled by machine.

REFERENCES:
patent: 3181595 (1965-05-01), Pender
patent: 3310099 (1967-03-01), Hunter et al.
patent: 3352349 (1967-11-01), Hennequin
patent: 5103888 (1992-04-01), Nakamura
patent: 5839494 (1998-11-01), Judkins

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