Backhoe unit detachably attached to a tractor
AssigneeKuboto Corporation
InventorsTuyoshi Aoki, Eiji Miyazaki
Life of this patent
Estimating the term…
Abstract
A backhoe unit detachably attached to a backhoe mounting frame disposed on a tractor body rearwardly of a driver's seat. The backhoe unit includes a base having engaging portions for connection to the backhoe mounting frame, a driver's footrest and a control column disposed on the base, a vertical swing axis supported by the base, a boom bracket supported to be swingable about the vertical swing axis, and a boom assembly attached to the boom bracket. The boom bracket is swung horizontally by a single swing cylinder having one end thereof connected to the base through a first cylinder connecting portion, and the other end connected to the boom bracket through a second cylinder connecting portion. The swing cylinder is disposed in a lateral position of the base.
Claims18
A backhoe unit detachably attached to a backhoe mounting frame disposed on a tractor body rearwardly of a driver's seat, comprising:
- a base having engaging portions for connection to said backhoe mounting frame;
- a driver's footrest and a control column disposed on said base;
- a vertical swing axis supported by said base;
- a boom bracket supported to be swingable about said vertical swing axis;
- a boom assembly attached to said boom bracket;
- and
- a single swing cylinder having one end thereof connected to said base through a first cylinder connecting portion, and the other end connected to said boom bracket through a second cylinder connecting portion, to swing said boom bracket horizontally, said swing cylinder disposed in one lateral side of said base to be offset from a centerline of said tractor body and extends slantwise in plan view relative to the centerline.
A backhoe unit detachably attached to a backhoe mounting frame disposed on a tractor body rearwardly of a driver's seat, comprising:
- a base having engaging portions for connection to said backhoe mounting frame;
- a driver's footrest and a control column disposed on said base;
- a vertical swing axis supported by said base;
- a boom bracket supported to be swingable about said vertical swing axis, and;
- a boom assembly attached to said boom bracket;
- a single swing cylinder having one end thereof connected to said base through a first cylinder connecting portion, and the other end connected to said boom bracket through a second cylinder connecting portion, to swing said boom bracket horizontally, wherein said swing cylinder is disposed in one lateral side of said base to be offset from a centerline of said tractor body and extends slantwise in plan view relative to the centerline;
- and
- swing angle limiting means for limiting a maximum angle of swinging of said boom bracket by said swing cylinder to be less than 90 degrees from a longitudinal axis extending through said vertical swing axis to each of a right side and a left side.
A backhoe unit detachably attached to a backhoe mounting frame disposed on a tractor body rearwardly of a driver's seat, comprising:
- a base having engaging portions for connection to said backhoe mounting frame;
- a control column disposed on said base;
- a vertical swing axis supported by said base;
- a boom bracket supported to be swingable about said vertical swing axis;
- a boom assembly attached to said boom bracket;
- a single swing cylinder having one end thereof connected to said base through a first cylinder connecting portion, and the other end connected to said boom bracket through a second cylinder connecting portion, to swing said boom bracket horizontally;
- and
- a driver's footrest disposed on said base, wherein said footrest is approximately channel-shaped opening rearward in plan view, said control column being in a form of a trapezoid having opposed lateral sides diverging rearward in plan view and being disposed in the rearwardly opening portion of said footrest, and the channel-shaped portion of said footrest defines a walkthrough space extending obliquely rearward from a rear position of said driver's seat for the driver to climb up and down from said footrest from lateral sides thereof.
Dependencies are inferred from the claim text.