Abstract An infinitely variable belt-drive transmission for a vehicle, having a clutch for transmitting engine power to wheels of the vehicle, a drive pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, a driven pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, and a belt engaged with said both pulleys. The transmission comprises an input shaft connected to a driven member of the clutch, a main shaft connected to the drive pulley and a drive gear secured to the input shaft. A synchronizer is securely provided on the main shaft to be engaged with the drive gear, and a counter gear engage with the drive gear. An idler gear is provided to be engaged with a gear on the synchronizer and with a gear of the counter gear so as to provide a reverse drive transmission.
In an infinitely variable belt-drive transmission for a vehicle, having a clutch for transmitting engine power to wheels of the vehicle, a drive pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, a driven pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, and a belt engaged with said both pulleys, the improvement comprising: an input shaft connected to a driven member of said clutch; a main shaft connected to said drive pulley; a drive gear secured to said input shaft; a synchronizer securely provided on said main shaft, said synchronizer comprising a synchronizer sleeve engageable with splines provided on said drive gear, and a driven gear; a counter gear comprising a first gear engaged with said drive gear and a second gear; and an idler gear engageable with said driven gear and said second gear so as to provide a reverse drive transmission.
Claim 2
Dependent Claim
154 words
In an infinitely variable belt-drive transmission for a vehicle, having a clutch for transmitting engine power to wheels of the vehicle, a drive pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, a driven pulley having a hydraulically shiftable disc and a hydraulic cylinder for shifting the disc, and a belt engaged with said both pulleys, the improvement comprising: an input shaft connected to a driven member of said clutch; a main shaft connected to said drive pulley; a drive gear secured to said input shaft; a synchronizer securely provided on said main shaft, said synchronizer comprising a synchronizer sleeve engageable with splines provided on said drive gear, and a driven gear; a counter gear comprising a first gear engaged with said drive gear and a second gear; and an idler gear engageable with said driven gear and said second gear so as to provide a reverse drive transmission.
Claim 3
Dependent Claim
22 words
The infinitely variable belt-drive transmission according to claim 1 wherein said driven gear is formed on the periphery of said synchronizer sleeve.
Claim 4
Dependent Claim
34 words
The infinitely variable belt-drive transmission according to claim 1 wherein said driven gear is positioned to correspond to said second gear when said sleeve is not engaged with said splines of said drive gear.