Power drive for tree transplanting spoons

Details Power drive for tree transplanting spoons Power drive for tree transplanting spoons

1981-02-09

1982-07-27

Eickholt, E. H.

Excavating

Peat excavators

144 2N, A01G 2306

Patent

active

043410251

ABSTRACT:
A power digging means for moving one of several digging spoons of a ring stand type tree digging machine into and out of the ground includes a pair of double acting hydraulic linear motors each connected at their end portions to a ring supported stanchion, a rack integral with the back of the spoon, a rack on the stanchion, a pinion support assembly connected to lower ends of each of the hydraulic motors, and a pinion meshed with the racks and rotatably mounted in the pinion support assembly. The pinion support assembly has arms extending past and behind the stanchion rack. A roller is rotatably mounted between the assembly arms and behind the rack to hold the stanchion rack in proper meshing relation to the pinion. The positioning of the stanchion rack and the spoon rack with respect to each other is adjustable to insure proper driving engagement of the pinion and racks and to insure a proper penetration path of the spoon into and out of the ground.

REFERENCES:
patent: 3017707 (1962-01-01), Sigler et al.
patent: 3017719 (1962-01-01), Sigler et al.
patent: 3142197 (1964-07-01), LeTourneau
patent: 3364601 (1968-01-01), Korenek
patent: 3460277 (1969-08-01), Grover et al.
patent: 3558177 (1971-01-01), Snead
patent: 3589039 (1971-06-01), Korenek
patent: 3618234 (1971-11-01), Bates
patent: 3713234 (1973-01-01), Grover et al.
patent: 3936960 (1976-02-01), Clegg
patent: 3958613 (1976-05-01), Herz
patent: 4031637 (1977-06-01), Stocker
patent: 4286398 (1981-09-01), Lemond et al.

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