Tilter mechanism for horizontal blind

Details Tilter mechanism for horizontal blind Tilter mechanism for horizontal blind

1998-03-16

1999-09-28

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

E06B 938

Patent

active

059571845

ABSTRACT:
A tilter for horizontal slotted blinds which incorporates a hollow housing (22) and lid (34) constructed of a thermoplastic. A spool (48) and gear (50) are attached to a shaft (46) which is retained by the housing and lid. The spool gear intermeshes with a reduction gear cluster which in turn drives a gear driven sleeve (68) through which a tilt rod (74) penetrates. A pair of lines or cords (32) are wound around the spool and hang beneath the blind head rail (28) for manual blind slat tilting. By pulling downward on a selected line the tilter rotates the tilt rod, which in turn rotates conventional drums upon which ladders are attached. The slats of a blind are tilted by gears which are selected to have a ratio that decreases the necessary throw of the line to achieve a full 180 degree tilt of the blind with minimal movement.

REFERENCES:
patent: 2580252 (1951-12-01), Stuber et al.
patent: 2809531 (1957-10-01), Moyer
patent: 5413162 (1995-05-01), Ciriaci
patent: 5636677 (1997-06-01), Liu
patent: 5647422 (1997-07-01), Weng
patent: 5680892 (1997-10-01), Liu

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