Patent ID: 6722217
Filing Date: 2004-04-20
Classification: F16H,Y10T

Abstract:
A transmission for vehicles comprising:an input drive shaft (10), a coaxial output shaft (11), and a counter shaft (12, 13) which is situated on an axis parallel to those of the input and output shafts (10, 11) and can be connected to and driven by the input shaft (10) by gear sets (I to V and W) and shifting clutches (a to e, g, h), whereby certain gear sets (I, II, III, W) form a principal gear-drive group (29) and two gear sets (IV, V) form a range gear-drive group (30) situated proximal to the output shaft (11), wherein a coaxial intermediate shaft (14) is placed between the input drive shaft (10) and the output drive shaft (11) which, by means of a first shifting clutch (a) can be coupled with the input drive shaft (10) and by means of a sixth shifting clutch (f) can be coupled with the output shaft (11); the counter shaft (12, 13) comprises a first counter shaft (12) and a second counter shaft (13) coaxial thereto which can be connected to the first counter shaft (12) by a second shifting clutch (b); a first fixed gear (16) of a first gear set (I) is seated on the input drive shaft (10) and meshes with a first idler gear (23) on the first counter shaft (12); and a second, fourth and seventh fixed gear (17, 19, 22) is seated on the intermediate shaft (14) from which the second fixed gear (17) engages with a third fixed gear (18) on the first counter shaft (12), while the fourth fixed gear (19) drives a second idler gear (24) and the seventh fixed gear, by means of an intermediate gear (28) drives a fifth idler gear (27) on the second counter shaft (13), upon which a third and a fourth idler gear (25, 26) are carried, and mesh with a fifth fixed gear (20) along with a sixth fixed gear (21) on the output shaft (11).