Manual transmission clutch protection apparatus

A clutch protection apparatus for a transmission comprising, in combination,

• a manual transmission having an input shaft, an input clutch, a shift lever and an output shaft, a shift gate cylinder acted upon by said shift lever and operably coupled to said shift lever, said shift gate cylinder defining a first shift pattern slot corresponding to axial and rotational positions of said shift actuation shaft in which forward and reverse gears are engaged,
• a stationary register pin disposed in said first shift pattern slot,
• a shift actuation shaft extending from said shift gate cylinder, at least one shift fork attached to said shift actuation shaft,
• at least one additional shift pattern slot on said shift gate cylinder corresponding to a limited gear selection,
• an actuator having a pin for selective disposition in said additional shift pattern slot, and
• control means for activating said actuator when selection of certain gears would result in an overspeed condition of said input clutch.

A clutch protection apparatus for a manual transmission comprising, in combination,

• an input clutch,
• a shift lever,
• a shift gate member disposed on a shift actuation shaft and operably coupled to said shift lever, said shift gate member having a shift pattern slot on an outside surface and said shift actuation shaft having at least one shift fork secured thereto,
• said shift pattern slot corresponding to axial and rotational positions of said shift actuation shaft in which forward and reverse gears are engaged,
• a stationary register pin disposed in said shift pattern slot,
• a first additional shift pattern slot on said shift gate member corresponding to a first limited gear selection,
• a first actuator having a pin for selective disposition in said first additional shift pattern slot,
• a second additional shift pattern slot on said shift gate member corresponding to a second limited gear selection,
• a second actuator having a pin for selective disposition in said second additional shift pattern slot, and
• means for activating said actuators when selection of certain gears would result in an overspeed condition of said input clutch.