TRANSMISSION WITH AN APPARATUS FOR PREVENTING A REVERSE GEAR FROM DISENGAGING FROM THE MESHED POSITION

摘要

In a transmission which comprises a reverse gear secured to a main shaft, a counter reverse gear secured to a counter shaft, and an axially movable reverse idler gear arranged between the reverse gear and the counter gear to mesh with them in order to establish and break the connection between the reverse gear and the counter gear, the reverse idler gear being provided, on its tooth surface corresponding to the counter reverse gear, with a tapered tooth trace having a tapered angle beta which is larger than a tapered angle alpha of a tapered tooth trace on the tooth surface of the counter reverse gear that meshes with the reverse idler gear.