Ripper tooth attachment for a back hoe

Details Ripper tooth attachment for a back hoe Ripper tooth attachment for a back hoe

1980-06-30

1982-05-04

Crowder, Clifford D.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

37 2R, 37DIG3, E02F 376

Patent

active

043275095

ABSTRACT:
A conventional back hoe type earth moving machine is equipped with an earth fracturing ripper tooth mechanism attached to the back hoe boom and dipper so that it can not only be manipulated into working position as required but also stored out of the way, when the back hoe bucket is operated for conventional digging. Two hydraulic cylinders or rams are attached to the center pivot pin of the back hoe boom and dipper, for extending, retracting and manipulating the ripper tooth. Support for the rams is provided by a combination of the back hoe boom, the dipper and the bucket which are extended to form an "A" frame. The distal end of the "A" frame is supported by resting the back hoe bucket on the ground. The back hoe boom, dipper and bucket "A" frame, supported at each end, will resist, at the "A" frame apex, the reactive force required to move the ripper tooth into and upwardly through the material to be fractured. Additional and special ripper teeth attachments, to the earth fracturing mechanism, are provided for special digging conditions. Structure is also provided for shifting the tooth angularly in either lateral direction to enlarge the operating zone in which ripping and lifting is effected.

REFERENCES:
patent: 2966180 (1960-12-01), Bles
patent: 3039210 (1962-06-01), Slaughter
patent: 4038766 (1977-08-01), Felstet
patent: 4204348 (1980-05-01), Lydie

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