Door drive mechanism including belt transmission for doors

Details Door drive mechanism including belt transmission for doors Door drive mechanism including belt transmission for doors

1993-11-29

1995-03-14

Buiz, Michael Powell

Endless belt power transmission systems or components

Positive drive pulley or guide roll

With particular belt

474148, F16H 700

Patent

active

053972775

ABSTRACT:
A motor driven door drive mechanism is provided having a belt transmission including a flat belt or a round belt which passes around two rotating guide wheels of which at least one is driven to take along the belt. The driven wheel is embodied by a gear and another gear is provided which loosely meshes with the drive gear, partly pressing the belt into the gaps between the teeth thereof. This arrangement offers a sound compromise between the amount of drive force that can be transmitted, and the manufacturing cost and results in low noise level in operation.

REFERENCES:
patent: 3083582 (1963-04-01), Wheeler
patent: 3719098 (1973-03-01), Graves
patent: 4758208 (1988-07-01), Bartos et al.
patent: 5078658 (1992-01-01), Legg
patent: 5230665 (1993-07-01), Tanaka et al.
JP-Ab. 2-173 436: Patents Abstracts of Japan, "Universal Belt", of Nec Corp., Appl. date 04 Jul. 1990, 1 page (published 18 Sep. 1990, vol. 14, No. 436).

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