Pulling device, preferably to pull a blind of a window blind ass

Details Pulling device, preferably to pull a blind of a window blind ass Pulling device, preferably to pull a blind of a window blind ass

1992-06-19

1994-01-25

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Roll type

With fabric free edge connected operator

160191, 160322, 1602671, 160274, A47G 502

Patent

active

052808181

ABSTRACT:
A pulling device, which serves preferably to pull in and out a cloth or blind of a window blind assembly, has a pulling cable. Opposite ends of the cable are mounted at the bottom ends of guide rails that are arranged on opposite sides of the cloth. From such attached ends, the cable is guided over deflecting rollers in a hollow member and is wound at least once therein around two rollers that are forced apart by a spring element, in particular a gas pressure spring. The hollow member has at opposite ends thereof respective sliding elements that guide the hollow member along the guide rails. The hollow member is attached to the end of the cloth that is to be moved. The entire length of the cloth can be pulled outwardly uniformly by the pulling device.

REFERENCES:
patent: 794937 (1905-07-01), Hopkins
patent: 2008000 (1935-07-01), Brunst et al.
patent: 2064470 (1936-12-01), Heckman
patent: 2420301 (1947-05-01), Cusumano
patent: 4739816 (1988-04-01), Dodich et al.
patent: 5113922 (1992-05-01), Christensen et al.

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