Drive means for roller door

Details Drive means for roller door Drive means for roller door

1984-07-24

1987-02-24

Braun, Leslie A.

Machine element or mechanism

Gearing

Gear and rotary bodies

74411, 160309, 160310, 464157, F16H 5500

Patent

active

046448136

ABSTRACT:
An improved roller door drive assembly comprising a drum, upon which a curtain is rolled, and a gear coaxially mounted to and engaged with the drum. The means of engagement consists of a plurality of forks projecting from the gear adapted to engage drum spokes. This arrangement prevents the ends of the drum while running in a swashplate manner from dragging the gear out of alignment with its driving pinion. In so doing this engagement means prevents excessive wear.

REFERENCES:
patent: Re31793 (1985-01-01), Berman et al.
patent: 1656715 (1928-01-01), Weiland
patent: 1858867 (1932-05-01), Ulrich
patent: 2248428 (1941-07-01), Kamenarovic
patent: 2742769 (1956-04-01), Gleeson et al.
patent: 3285089 (1966-11-01), Tsugawa
patent: 3884050 (1975-05-01), Borcuk
patent: 4392392 (1983-07-01), Perisic et al.

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