Lifting track of curtain

Details Lifting track of curtain Lifting track of curtain

1998-06-16

1999-06-01

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

E06B 930

Patent

active

059080620

ABSTRACT:
A lifting track of curtain is composed of a track, a plurality of winding mechanisms each having a carrying seat, a cord-winding shaft, and a cord fastened at one end thereof with the cord-winding shaft and at another end thereof with the curtain. As the cord-winding shaft is turned, the cord is wound on the cord-winding shaft such that the cord slides from a large diametrical end of a cylindrical body of the cord-winding shaft toward a small diametrical end of the cylindrical body of the cord-winding shaft. The carrying seat is provided with a concave surface for preventing the intertwining of the cord at the time when the cord is wound on the cord-winding shaft.

REFERENCES:
patent: 3141497 (1964-07-01), Griesser
patent: 4955421 (1990-09-01), Torti
patent: 5070927 (1991-12-01), Chen
patent: 5103888 (1992-04-01), Nakamura
patent: 5133399 (1992-07-01), Hiller et al.
patent: 5328113 (1994-07-01), Villette et al.
patent: 5725040 (1998-03-01), Domel

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