LINEAR GEAR SHIFT MECHANISM FOR CHAINLESS VEHICLE

摘要

A linear gear shift mechanism for chainless vehicles includes a gear shift unit having a support rotator, transmission balls and driving posts, with the transmission balls disposed in the support rotator, with a cylindrical receiving portion disposed on each transmission ball radially, with the driving posts disposed in the cylindrical receiving portions along radial direction of the support rotator and rotating from radial direction thereof to but not reach axial direction of the support rotator; an axial power input rotator having an inward-tilted power input annular surface; an axial power output rotator having an inward-tilted power output annular surface, with the transmission balls clamped between inward-tilted power input and output annular surfaces and support rotator; a tread-required transverse power source meshing with axial power input rotator; an axial power transfer portion meshing with axial power output rotator axially; a transverse power output portion meshing with axial power transfer portion.

主权项

1. A linear gear shift mechanism for chainless vehicles, comprising:
a gear shift unit having a support rotator, a plurality of transmission balls and a plurality of driving posts, with the transmission balls spaced apart from each other and movably disposed in the support rotator, with a cylindrical receiving portion disposed on each said transmission ball along a radial direction thereof, wherein the driving posts have inward ends movably disposed in the cylindrical receiving portions, respectively, along a radial direction of the support rotator and rotate from the radial direction of the support rotator to but not reach an axial direction of the support rotator; an axial power input rotator having an inward-tilted power input annular surface and inputting power along the axial direction of the support rotator; an axial power output rotator having an inward-tilted power output annular surface and outputting power along the axial direction of the support rotator, wherein the transmission balls are movably clamped between the inward-tilted power input annular surface, the inward-tilted power output annular surface and the support rotator; a tread-required transverse power source for meshing with the axial power input rotator along the radial direction of the support rotator; an axial power transfer portion for meshing with the axial power output rotator along the axial direction of the support rotator; and a transverse power output portion for meshing with the axial power transfer portion along the radial direction of the support rotator.