Patent ID: 7150341

Claim:
A transmission apparatus of an all-terrain vehicle comprising: a non-stage transmission disposed in a power transmission path from an engine to drive wheels; a forward and backward movement switching device capable of switching to a forward movement position, a neutral position, and a backward movement position, said forward and backward movement switching device being disposed in said power transmission path at a position near said engine; a shift operation device for switching forward and backward movements disposed on a handle bar at a position adjacent to a handle grip, said shift operation device and said forward and backward movement switching device being interlocked with each other, said shift operation device being a rotary type and having a rotary member which is rotatable about an axis of the handle bar; a locking mechanism mounted on said rotary member to releasably lock said rotary member; and a stopper mechanism mounted on said forward and backward switching device to prevent said forward and backward switching device from shifting from said neutral position to said backward movement position, said stopper mechanism being interlocked with a brake of said vehicle so that said stopper mechanism is operated to allow said forward and backward switching device to shift from said neutral position to said backward movement position when a brake operation of the vehicle is performed.