초록 ▼

An excavating machine is provided having an L-arm assembly located between a power unit and an earth cutting device, the L-arm assembly for raising and lowering the earth cutting device. The L-arm assembly has a first arm for operable attachment to the power unit and a second arm integral with and s

An excavating machine is provided having an L-arm assembly located between a power unit and an earth cutting device, the L-arm assembly for raising and lowering the earth cutting device. The L-arm assembly has a first arm for operable attachment to the power unit and a second arm integral with and substantially transverse to the first arm for operable attachment to the earth cutting device. The first arm of the L-arm assembly is longer than the second arm of the L-arm assembly. Hydraulic cylinders are included resulting in an earth cutting device which is held down into the ground in a positive manner so as to be more efficient in operation.

대표청구항 ▼

[ What is claimed is:] [1.] An excavating machine comprising:(A) a power unit;(B) earth cutting means comprising a continuous excavator pulled from behind said power unit;(C) an L-arm assembly located between said power unit and said earth cutting means, said L-arm assembly having a first arm for op

[ What is claimed is:] [1.] An excavating machine comprising:(A) a power unit;(B) earth cutting means comprising a continuous excavator pulled from behind said power unit;(C) an L-arm assembly located between said power unit and said earth cutting means, said L-arm assembly having a first arm for operable attachment to said power unit, said first arm having a first end and a second end opposite to said first end, said L-arm assembly further having a second arm integral with and substantially transverse to said first arm for operable attachment to said earth cutting means, said second arm having a first end integral with said first end of said first arm and a second end opposite to said first end of said second arm, said first arm of said L-arm assembly being longer than said second arm of said L-arm, assembly;(D) means for raising and lowering said L-arm assembly; and(E) means for adjusting the pitch of said earth cutting means relative to said L-arm assembly, wherein said means for adjusting the pitch is pivotally connected to said second arm substantially near said first end and said second end.