Releasable drive assembly

Details Releasable drive assembly Releasable drive assembly

1987-01-20

1989-07-04

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Roll type

With rotating means

192 67R, 192 93B, E06B 920

Patent

active

048441406

ABSTRACT:
A releasable drive assembly is described, suitable for use with a rolling door. The illustrated assembly comprises a chassis, a final drive unit rotatably mounted to the chassis for operating the door, a motor fixed with respect to the chassis, drive means interconnecting the motor with the final drive unit, the drive means including a clutch for releasing and re-engaging the motor and the final drive unit, the clutch including a slidable clutch unit keyed for rotation with one part of the drive means and having axially projecting formations respectively engageable and disengageable with mating formations on the other part of the drive means upon sliding movement of the clutch unit, latchable disengagement means for selective engagement with the slidable clutch unit for sliding the clutch unit into and out of engagement with the mating formations, the disengagement means being latchable to hold the clutch unit in its disengaged position.

REFERENCES:
patent: 2670065 (1954-02-01), Stevens, Jr.
patent: 3285089 (1966-11-01), Tsugawa
patent: 3578118 (1971-05-01), Wetzel
patent: 4060310 (1977-11-01), Brown
patent: 4566566 (1986-01-01), Vuillet

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