Roller blinds

Details Roller blinds Roller blinds

1980-05-30

1982-09-07

Kannan, Philip C.

Flexible or portable closure, partition, or panel

Roll type

Shiftable position roll

160310, E06B 920, A47H 100

Patent

active

043478867

ABSTRACT:
A roller blind has a roller with axially projecting trunnions each of which engages in an elongated arcuate slot in a respective end bracket mounting the blind on a supporting structure such as window frame. One trunnion is connected to a reversible motor for winding up and lowering the blind. The trunnions each bear frictionally on an edge bounding the slot, and the blind is wound on the roller such that rotation of the roller in the direction to lower the blind causes movement, by frictional engagement, of the trunnions along the slots to bring the blind closer to the window frame, whereas winding up of the blind moves it farther away from the window frame.

REFERENCES:
patent: 1595234 (1926-08-01), Kuyper
patent: 4060310 (1977-11-01), Brown

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