| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise generated from a detent of a driving pulley movable half body under oscillating behavior of a crank shaft, in a V-belt automatic transmission which comprises a fixed half body fixed to the crank shaft, and the movable half body mounted on the crank shaft slidably in the crank shaft direction in opposition to the fixed half body, and in which the movable half body is composed of an umbrella-shaped flange portion holding a V-belt, and a cylindrical boss portion, a guide groove is formed on the boss portion for transmitting driving torque from the crank shaft, and a key for transmitting the driving torque of the crank shaft to the movable half body, is fitted and retained in the guide groove of the boss portion and a key groove formed on a cylindrical sleeve fixed to the crank shaft. SOLUTION: The key groove has the circular arc shape, and the torque transmission key mounted as the detent has the half-moon shape at its side fitted to the key groove. COPYRIGHT: (C)2007,JPO&INPIT
|
