Power door operator for multi-passenger mass transit vehicles

Details Power door operator for multi-passenger mass transit vehicles Power door operator for multi-passenger mass transit vehicles

1993-05-17

1994-07-26

Mitchell, David M.

Land vehicles: bodies and tops

Bodies

Door or window with specified vehicle feature

296207, 49122, 49141, 49379, 74522, 74625, 192 67P, 192 892, 411 88, 411956, B60J 504

Patent

active

053322797

ABSTRACT:
A power door operator for multi-passenger mass transit vehicles, typically buses, features electric actuation of dual swinging doors. A manual activator having an ergonometrically correct actuating plunger, for emergency door opening, operates a sleeved clutch. Fixed to the sleeve clutch is a drive bar with arms having individually adjustable lengths. The drive arms actuate outboard door shaft levers on individual door leaf through door drive rods intermediate the door arms and drive arms. Each rod incorporates spherical rod ends. The drive arms also actuate limit switches establishing door opened and door closed circuitry for energizing the electric drive system. The adjustable length clutch door drive arms provide a convenient device for controlling door leaf closing sequence and residual or door holding force when the doors are in a closed position.

REFERENCES:
patent: 2893506 (1959-07-01), Daugirdas
patent: 4375140 (1983-03-01), Blair et al.

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