In either a gravity balancer or spring balancer, the forces required to move a weight in the direction of gravity consist of inertia force and frictional force generated in the system. This report derives a general equation of inertia force for both a gravity balancer and spring balancer and compares the two. It also clarifies the conditions for decreasing inertia force and achieving a compact and light configuration in a spring balancer. In addition, a general equation of frictional force is derived for each type of balancer enabling frictional force to be predicted at the design stage.
Comparison Between Spring Balancer and Gravity Balancer in Inertia Force and Performance
Contributed by the Design Automation Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received August 1999. Associate Editor: H. Lankarani.
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Kobayashi, K. (August 1, 1999). "Comparison Between Spring Balancer and Gravity Balancer in Inertia Force and Performance ." ASME. J. Mech. Des. December 2001; 123(4): 549–555. https://doi.org/10.1115/1.1423315
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