Hand-operated lever linkage control

A hand-operated lever linkage control, comprising:

• (a) a housing including means for attaching said housing to a vehicle;
• (b) a lever assembly pivotally mounted in said housing and including means for connecting a control linkage thereto, said means for connecting including means for actuating the control linkage by pivotal movement of said lever assembly between a rest and an actuated position;
• and
• (c) spring-tensioned pivoting eccentric means in said housing and connected to said lever assembly for mechanically assisting lever travel during actuation of the control linkage, said spring-tensioned pivoting eccentric means including:
• (1) an eccentric assembly pivotally mounted in said housing, said eccentric assembly including:
• (a) a pair of fulcrum pivots rotatably mounted in opposing sides of said housing forward of said lever assembly;
• and
• (b) a rigid member eccentrically mounted between said fulcrum pivots and rotatable therewith, said linkage means being a pair of rigid linkage arms pivotally attached between said rigid member and said lever assembly;
• (2) a linkage member connecting said eccentric assembly and said lever assembly;
• and
• (3) a coil spring tensioned between said housing and said eccentric assembly for urging pivotal movement of said eccentric assembly and for providing a mechanical advantage through said linkage member to assist lever travel during actuation of the control linkage.