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1. (WO2018100067) SYNCHRONIZED TRANSMISSION, IN PARTICULAR FOR MOTORCYCLES

Pub. No.:    WO/2018/100067    International Application No.:    PCT/EP2017/080991
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Dec 01 00:59:59 CET 2017
IPC: B62M 7/12
F16D 11/14
F16D 41/04
F16D 23/12
Applicants: PIAGGIO & C. S.P.A.
Inventors: NUTI, Luca
MARIOTTI, Walter
Title: SYNCHRONIZED TRANSMISSION, IN PARTICULAR FOR MOTORCYCLES
Abstract:
A synchronized transmission (200), which can be 5 used aboard a vehicle and in particular a motorcycle, wherein the craknkshaft (202) actuated by the engine (106) and the driven shaft, connected to a rear wheel (105), are substantially parallel therebetween, the driven shaft (205) receiving the 10 motion from a primary shaft (53) kinematically connected to the craknkshaft (202), wherein the primary shaft (53) has at least one toothed wheel (61), which transmits the motion to said driven shaft (205), arranged on a driven bushing (76) 15 assembled on the primary shaft (53), the primary shaft (53) comprising a passing-through axial channel (45) wherein an actuation stem (70) is inserted, comprising a clutch (74), acting on said driven bushing (76) and actuated axially through 20 said stem (70), which makes said driven bushing (76) integral to the motion transmission so as to exclude the reversibility of the free wheel (62) itself.