Patent ID: 7721614
Filing Date: 2010-05-25
Classification: F16H,Y10T

Abstract:
1. A gear transmission comprising: a main shaft for inputting power from an engine, said main shaft having a predetermined number of drive gears operatively mounted thereon; a counter shaft having a predetermined number of driven gears operatively mounted thereon, the number of which is the same as the number of said drive gears, said driven gears being respectively driven by said drive gears to set predetermined shift positions; and a shifter adapted to be moved on said main shaft or said counter shaft to thereby come into engagement with a specific gear of said drive gears and said driven gears, said shifter being integrally attached to another gear of said drive gears and said driven gears disposed adjacent to said specific gear; wherein said specific gear comprises a toothed portion and an engaging portion operatively attached to the toothed portion for concurrent rotation therewith, the engaging portion configured to engage said shifter, whereby said main shaft rotationally drives said counter shaft through said shifter and said specific gear at any one of said predetermined shift positions; wherein an outer diameter of said engaging portion is larger than an outer diameter of the toothed portion of said specific gear.