Trencher with plural digging wheels having adjustable inclination
AssigneeCerimon
InventorGilles Petraud
Life of this patent
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Abstract
The machine includes a frame on which is suspended on a shaft a support for two inclined cutters. The support includes slots of different inclination in which are mounted guide rollers connected to housings in which inclined cutters are rotatively mounted. A jack shifts the housings and consequently adjusts the inclination of the cutters. An additional cutter is located in front of the inclined cutters and is adapted to effect a rough cutting of the trench. A smoothing shoe is openable to a variable extent with the inclination of the cutters.
Claims9
A machine for digging and cleaning out trenches comprising a frame, a support carried by the frame, two cutters having a frustoconical shape and axes of rotation which are inclined to the horizontal, mounting means mounting said cutters on said support and comprising, for each cutter, a housing carrying guide rollers, slots defined by said support and having different inclinations, said rollers being guidedly engaged in said slots, means for adjusting the inclination of said axes for the purpose of modifying the inclination of walls of the trench to be produced, said means for adjusting the inclination comprising a jack mounted in said support, and links connecting said jack to said housings.
Dependencies are inferred from the claim text.