Land vehicles – Wheeled – Attachment
Patent
1979-04-25
1981-08-04
Mitchell, David M.
Land vehicles
Wheeled
Attachment
74129, 91306, 254 86H, B60S 912
Patent
active
042818524
ABSTRACT:
A motion converting system is configured for operating a vehicular jacking mechanism having a jacking member and a shaft rotatable for actuating the jacking member. The system comprises a sleeve for receiving the shaft which is then coupled to the sleeve, as through a transmission. The system includes a pneumatic cylinder. An actuator rod extends from the cylinder axially normal to the sleeve and is reciprocal toward and away from the sleeve, which carries a toothed wheel. Lever arms, arranged in pairs on opposite faces of the toothed wheel, extend radially outward from the sleeve and have proximal ends swingable about the sleeve. Pairs of links respectively interconnect distal ends of the lever arms with the end of the actuator. Selectively reversible pawls carried between pairs of the lever arms engage teeth of the toothed wheel to cause rotation of the sleeve for rotating the shaft in a selected continuous direction upon each movement of the actuator rod.
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