Manual/auto dual driving mode transmission mechanism for a verti

Details Manual/auto dual driving mode transmission mechanism for a verti Manual/auto dual driving mode transmission mechanism for a verti

1999-07-02

2000-09-05

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

1601761V, E06B 936

Patent

active

061127981

ABSTRACT:
A manual/auto dual driving mode transmission mechanism installed in the headrail of a vertical blind and operated to rotate vertical slats of the vertical blind, the transmission mechanism including a motor drive unit controlled by a remote controller to rotate the rotary main shaft in the headrail of the vertical blind in turning the vertical slats to adjust the light, and a chain drive unit for pulling by hand to rotate the rotary main shaft of the vertical blind manually when the remote controller or the motor of the motor drive fails.

REFERENCES:
patent: 2149481 (1939-03-01), Bosch et al.
patent: 3068938 (1962-12-01), Hull
patent: 4224973 (1980-09-01), Hugin
patent: 4593218 (1986-06-01), Streeter
patent: 4657060 (1987-04-01), Kaucic
patent: 4848288 (1989-07-01), Murase et al.
patent: 4934438 (1990-06-01), Yuas et al.
patent: 5413162 (1995-05-01), Ciriaci
patent: 5575323 (1996-11-01), Smuckler

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