Patent ID: 6279423
Filing Date: 2001-08-28
Classification: F16H,Y10T

Abstract:
A countershaft transmission which incorporates rotatably in a transmission case, a first shaft, which is connected to an engine, a second shaft, which extends in parallel with said first shaft, a third shaft, which extends in a direction away from said engine against said first shaft, and a plurality of speed change gear trains, which are disposed between said first shaft and said second shaft;wherein:said transmission case comprises a first casing, a second casing and a third casing, which are connected in this order from a side where said engine is placed;said first shaft, said second shaft and said speed change gear trains are disposed in a first room which is defined by said first and second casings;sides of said first and second shafts which are located toward said engine are rotatably supported by said first casing while a side of said first shaft which is located away from said engine is supported rotatably by said second casing;a side of said second shaft which is located away from said engine, said third shaft, and transmission means, which carries out power transmission between said second and third shafts, are disposed in a second room which is defined by said second and third casings;a side of said third shaft which is located toward said engine is rotatably supported by said second casing while sides of said second and third shafts which are located away from said engine are supported rotatably by said third casing; andthe side of said first shaft which is located away from said engine and the side of said third shaft which is located toward said engine are separately supported by said second casing.