| 摘要 |
PURPOSE: A synchronizer for a manual transmission is provided to prevent rattle noise, and to improve shift quality and endurance of the transmission by contacting the chamfer of the synchronizer ring to the chamfer of the sleeve until engaging the sleeve with the clutch gear after synchronizing. CONSTITUTION: A synchronizer of a manual transmission is composed of a sleeve engaged with a synchronizer hub rotating with a main shaft, and moved axially; a clutch gear arranged at both sides of the synchronizer hub, and engaged with the sleeve selectively; and a synchronizer ring(16) synchronizing by frictionizing the clutch gear in shifting. Chamfers(30,32) are formed in the synchronizer ring, and engaged with the sleeve in shifting. The chamfer of the sleeve is contacted to the chamfer of the sleeve continuously from phase difference by forming the chamfer to be smaller than the other chamfer. Rattle noise is prevented, and shift quality is improved with generating cone torque.
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