Utility Vehicle Drive Lever Synchronization for One-Handed Travel

A mechanical coupler with a biasing element (spring) is introduced as an intermediary between the two control sticks. The coupler provides a synchronizing force that automatically maintains both sticks in equivalent positions for straight-line travel, while allowing the operator to release one stick to operate other controls without causing unintended turns. The biasing element stores and releases mechanical energy to maintain the synchronized position.

The mechanical coupler with biasing element performs preliminary action by continuously applying a synchronizing force to keep both control sticks in equivalent positions. This preliminary synchronization ensures that when the operator releases one stick to operate other controls, the coupler automatically maintains the other stick in the correct position, preventing unwanted turns and eliminating the need for the operator to consciously maintain stick positions.

The patent replaces complex electronic synchronization systems with a simple mechanical coupler and biasing element assembly. The mechanical coupling directly connects the two control sticks through a pivot axis, and the biasing element (spring) provides the synchronizing force through pure mechanical means. This mechanical substitution eliminates the need for sensors, actuators, and control electronics, significantly reducing system complexity while achieving the desired one-handed control capability.