Patent ID: 6272854
Filing Date: 2001-08-14
Classification: B60K,F16H,Y10T

Abstract:
An axle driving apparatus for a vehicle, comprising;a housing;an axle disposed in said housing;an input means disposed in said housing;a hydraulic pump driven by said input means, wherein said hydraulic pump is provided with a reciprocally movable cylinder block with a plurality of pistons disposed in said cylinder block, said cylinder block having a rotary axis which is substantially perpendicular to a rotary axis of said axle;a movable swash plate for receiving thrust from the heads of said pistons;means disposed on opposite sides of said movable swash plate in said housing for rotatably supporting said movable swash plate and for permitting said movable swash plate to slant along an axis substantially parallel to said axle, said means for rotatably supporting said movable swash plate includesa first trunnion provided at one side of said swash plate having an axis which coincides with a slantingly rotary axis of said swash plate and extends outwardly from a side wall of said housing, andan arm fixed to the outer end of said first trunnion connected with a speed change operating member provided on said vehicle which longitudinally, swingably moves around said slantingly rotary axis;a hydraulic motor driven by pressurized oil from said hydraulic pump;an output means driven by said hydraulic motor;a drive train for drivingly connecting said output means and said axles; anda shock absorber mounted between said arm and said housing for applying operational resistance to said speed change operating member.