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Working vehicle

  • US 8,469,137 B2
  • Filed: 03/13/2012
  • Issued: 06/25/2013
  • Est. Priority Date: 08/22/2011
  • Status: Active Grant
First Claim
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1. A working vehicle, whereina transmission case speed-changing a driving force from an engine and transmitting the driving force to left and right rear wheels is supported on a vehicle body frame,the vehicle body frame comprising:

  • a pair of left and right upper frames extending in a longitudinal direction;

    an underframe arranged below the upper frames; and

    a plurality of vertical frames having upper ends connected to the left and right upper frames and lower ends connected to the underframe,the vehicle body frame being provided with a mount frame, as a portion of the underframe, supporting the transmission case,the mount frame being separated from or separably connected to a portion of the underframe provided at a position forward of the mount frame,the vertical frames that connect to the mount frame being configured so that the upper ends of the vertical frames are separably connected to the upper frames or so that middle portions of the vertical frames are separable,suspension arms being supported to be swingable about longitudinally orientated swing axes with respect to portions of the vertical frames that are fixedly provided on the mount frame,the rear wheels being rotatably supported on swinging ends of the suspension arms, andrear wheel drive shafts being provided transmitting the driving force from the transmission case to the rear wheels,wherein the engine and the transmission are structured and arranged to be removable from the vehicle along with the mount frame while remaining connected to each other.

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