SIX-SPEED GEARBOX Russian patent published in 2013 - IPC F16H3/16 F16H37/04 

FIELD: machine building.

SUBSTANCE: six-speed gearbox includes coaxial inlet and outlet shafts, and an intermediate shaft installed parallel to them. Four pairs of forward gears and a row of backward gears is installed on shafts, at that, drive backward gear is engaged with a driven one through an additional gear installed on a separate axis. On outlet and intermediate shafts there freely installed are two gears; three-position strike clutches are located between those gears. A drive forward gear of inlet shaft and three gears of intermediate shaft are fixed on shafts. Inner end of the inlet shaft is located in the tip of the outlet shaft with a two-position strike clutch, which is installed in a support of the intermediate wall. On inlet shaft there freely installed is a gear with a two-position strike clutch. The row of backward gears can be located at the gearbox inlet.

EFFECT: enlarging layout and operating characteristics at reduction of metal consumption of the device.

2 cl, 4 dwg