Load balancing arm

Details Load balancing arm Load balancing arm

1994-04-25

1995-10-10

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

16 1C, 91368, 414719, 414917, 901 48, B25J 1100, B66C 2314

Patent

active

054561302

ABSTRACT:
A load balancing arm is shown and described as having improved control including a programmable control element and electronic air regulation to provide precise and controllable lifting force on a load. The disclosed load balancing arm responds to slight operator applied force to aid in movement of the load in overcoming system hysteresis, friction and load inertia without requiring the operator to apply a sufficiently large magnitude force to overcome such counteracting forces in the system. The disclosed load balancing arm further includes automatic load weight detection sensors for accommodating variation in load weights while applying a lifting force to the load which substantially equals the weight of the load. This allows the operator to move the load freely throughout a work space.

REFERENCES:
patent: 3259351 (1966-07-01), Olsen
patent: 3402911 (1968-09-01), O'Neill
patent: 3554091 (1971-01-01), Spyridakis
patent: 3721416 (1973-03-01), Goudreau
patent: 3880393 (1975-04-01), Watson
patent: 4279192 (1981-07-01), Kleinwaks
patent: 4640663 (1987-02-01), Niinomi
patent: 4659278 (1987-04-01), Doege et al.
patent: 4807518 (1989-02-01), Berchtold et al.

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