Patent ID: 8910736

Claim:
Hub reduction gear for a driving wheel of a wheeled vehicle, comprising: a planetary gear unit comprising: a sun gear connectable to a drive shaft, a carrier for planet gears, which are in mesh with the sun gear, and a ring gear being in mesh with the planet gears, wherein the carrier and the ring gear are each configured to be connected to and disconnected from each of the driving wheel and a body-fixed part, wherein the carrier is fixedly connectable to the driving wheel of the vehicle by means of a first engagable and disengagable clutch and engagably and disengagably connected to the body-fixed part of the vehicle by means of a second engagable and disengagable clutch, wherein the ring gear is fixedly connectable to the driving wheel of the vehicle by means of a third engagable and disengagable clutch and engagably and disengagably connected to the body-fixed part of the vehicle by means of a fourth engagable and disengagable clutch, wherein the first and fourth clutches are arranged to be engaged when the second and third clutches are disengaged and vice versa, and wherein all clutches are electrically, pneumatically or hydraulically controllable between their engaged and disengaged positions.