Safety device for arresting unrolling of roller blinds

Details Safety device for arresting unrolling of roller blinds Safety device for arresting unrolling of roller blinds

1977-12-14

1978-09-12

Caun, Peter M.

Flexible or portable closure, partition, or panel

Roll type

With brake or stop

160300, 160302, E06B 9208

Patent

active

041129962

ABSTRACT:
A roller blind with a safety device for arresting accidental unrolling of the blind in which a concentric blocking shaft is affixed to the winding shaft, a gear fastened to the blocking shaft, a pivotally mounted pawl with a spring urging the pawl in contact with teeth of the gear, a gate normally holding the pawl out of contact with the teeth, an inertial member supported relatively movably with respect to the blocking shaft whereby upon increased unrolling velocity the inertial member will change its relative movement and activate the gate member to release the pawl and permit it to engage the teeth of the gear and arrest unrolling of the blind.

REFERENCES:
patent: 201023 (1878-03-01), Lake
patent: 343160 (1886-06-01), Buckley
patent: 826284 (1906-07-01), Smith et al.
patent: 1709305 (1929-04-01), Brunst et al.
patent: 2040301 (1936-05-01), Fay

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