RESEARCH PAPERS: Mechanisms Papers

A Constant Force Generation Mechanism

[+] Author and Article Information
R. H. Nathan

Mechanical Engineering Department, Ben Gurion University of the Negev, Beer Sheva, Israel

J. Mech., Trans., and Automation 107(4), 508-512 (Dec 01, 1985) (5 pages) doi:10.1115/1.3260755 History: Received July 12, 1984; Online November 19, 2009


A mechanism is described that generates a constant, unidirectional force at any given point on a hinged lever, for all positions of the lever within a full rotation. It is shown how one of several selected geometric parameters of the mechanism may be preadjusted automatically to equilibrate the system, using force feedback from the output load. The constant force generator is introduced into a parallelogram four-bar mechanism, and it is shown that this system may replace links of a kinematic chain to achieve static balancing of the chain plus any additional masses or vertical forces.

Copyright © 1985 by ASME
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