Patent ID: 6257080
Filing Date: 2001-07-10
Classification: F16H,Y10T

Abstract:
A power-shifted transmission for industrial vehicles capable of accomplishing first through third forward gear ratios and first and second reverse gear ratios, comprising:a transmission casing:an input shaft rotatably mounted on said transmission casing and having a drive gear for unitary rotation therewith;a forward shaft assembly including a forward shaft rotatably mounted on said transmission casing, first and second forward gears rotatably fitted to the forward shaft, a forward clutch cylinder rotatable about the forward shaft and having a cylinder gear in meshing engagement with the drive gear of said input shaft, and first and second forward clutches selectively operable to couple one of the first and second forward gears with the forward clutch cylinder;a reverse shaft assembly including a reverse shaft rotatably mounted on said transmission casing, first and second reverse gears rotatably fitted to the reverse shaft, a reverse clutch cylinder rotatable about the reverse shaft and having a cylinder gear in meshing engagement with the cylinder gear of the forward clutch cylinder, and first and second reverse clutches selectively operable to couple one of the first and second reverse gears with the reverse clutch cylinder;an intermediate shaft assembly including an intermediate shaft rotatably mounted on said transmission casing, a third forward gear rotatably fitted to the intermediate shaft, an intermediate clutch cylinder rotatable about the intermediate shaft and having a cylinder gear in meshing engagement with the cylinder gear of the reverse clutch cylinder, and a third forward clutch operable to couple the third forward gear with the intermediate clutch cylinder; andan output shaft rotatably mounted on said transmission casing and having first through third driven gears each fixedly attached to the output shaft for unitary rotation therewith, said first driven gear meshing with the first forward gear and the first reverse gear, said second driven gear meshing with the second forward gear and the second reverse gear, and said third driven gear meshing with the third forward gear.