Patent ID: 6520041
Filing Date: 2003-02-18
Classification: F16H,Y10T

Abstract:
A three parallel shaft automatic transmission comprising:a first input shaft; a second input shaft adapted to rotate in synchronism with said first input shaft; an output shaft, said first and second input shaft and said output shaft being disposed in parallel with one another; a first hydraulic clutch provided on said first input shaft for obtaining a forward first gear; a drive gear for said first gear connected to said first input shaft via said first hydraulic clutch; a reverse drive gear integrally connected to said first gear drive gear, said first gear drive gear and said reverse gear being rotatably supported on said first input shaft; a second hydraulic clutch provided on said second input shaft for obtaining a forward second gear; a drive gear for said second gear rotatably supported on said second input shaft to be connected to said second input shaft via said second hydraulic clutch; a driven gear for said first gear rotatably supported on said output shaft for mesh engagement with said first gear drive gear; a reverse driven gear rotatably supported on said output shaft for mesh engagement with said reverse drive gear via an idle gear, a driven gear for said second gear connected to said output shaft for mesh engagement with said second gear drive gear; a selector hub connected to said output shaft while positioning said first gear driven gear and said reverse driven gear on axial ends thereof, said first gear driven gear and reverse driven gear being made free to be selectively connected to said selector hub via a forward and reverse switching selector, wherein said second gear driven gear is disposed contiguously with said first gear driven gear, a spacer collar is disposed on said output shaft so as to be positioned between said selector hub and said second gear driven gear, and said first gear driven gear is rotatably supported on said spacer collar.