System for automatically opening and closing doors of vehicles

Movable or removable closures – Operator interrelated with closure latch release – Motor driven

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Details

49334, E05F 1500

Patent

active

052282392

ABSTRACT:
A system for automatically opening and closing a door of a vehicle is disclosed. The system comprises an oil-hydraulic pump for generating hydraulic power for the system and a pressure accumulator for removing pressure pulsations generated in the pressurized oil outputted from the oil-hydraulic pump. A pressure control valve controls a flow direction of the pressurized oil applied from the oil-hydraulic pump thereto, and a controller controls the pressure control valve in response to input signals. An intermittent gearing assembly transmits rotational motion caused by the pressurized oil acting thereon to the door to automatically open or close the door. A hydraulic rotator converts the hydraulic power of the pressurized oil into rotational motion of the intermittent gearing assembly. A longitudinal lock bar movable in response to intermittent gearing motion locks and unlocks the door relative to the vehicle frame.

REFERENCES:
patent: 2116446 (1938-05-01), Nishimura
patent: 2628091 (1953-02-01), Rappl
patent: 2726893 (1955-12-01), Zucker
patent: 3124344 (1964-03-01), Mano
patent: 3195879 (1965-07-01), Bond et al.
patent: 3319380 (1967-05-01), Loftus

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