Patent ID: 7618016
Filing Date: 2009-11-17
Classification: F16F,F16M,G03B

Abstract:
1. A force exerting device comprising: a load arm pivotable about a load pivot and forming a first side of a force exerting structure; a resilient member having a first end attached to the load arm and a second end attached to a termination point displaced from the load pivot and forming a second side of the force exerting structure; a force exerting structure third side extending from the termination point to the load pivot; a first adjustment mechanism to move the termination point to change the length of the third side of the force exerting structure; a second adjustment mechanism to move the termination point in a direction other than the direction produced by the first adjustment mechanism, wherein the combination of the two adjustments allows the termination point location to be set on either side of a plumb line passing through the load pivot; and wherein at least one side of the force exerting structure is chambered.