Patent ID: 6263760
Filing Date: 2001-07-24
Classification: F16H,Y10T

Abstract:
Speed varying device, comprising a box body for housing and supporting a set number of gear pairs variable according to the speed variation ratio of the device itself, said gear pairs being kinematically connected to each other to transmit the motion between an input shaft and an output shaft of said varying device, said box body being defined by a casing which is always the same for any set number of said gear pairs, and presenting substantially the shape of a cup body and supporting a first group of said gears kinematically connected to each other; said casing being connectable to one of at least first and second covers chosen according to the set number of gear pairs present in the speed varying device; each of said first and second covers supporting a second group of at least one gear complementary to and forming said set number of gear pairs with said first group of gears, said at least one gear of said second gear group completely supported by a respective one of said first and second covers; and said second cover comprising, internally to said box body, a wall for supporting a part of said second gear group.