Folding trencher boom

Details Folding trencher boom Folding trencher boom

1987-01-20

1988-01-05

Pearson, Charles

Excavating

Peat excavators

37191A, 172 75, 172100, E02F 506

Patent

active

047166657

ABSTRACT:
A foldable trencher boom assembly including a first boom portion pivotally connected to a second boom portion by a hinge. One leg of the hinge is connected to the first boom portion while the other leg of the hinge is connected to the second boom portion. When the boom portions are aligned, fasteners secure the hinge to maintain the colinear relationship between the boom portions. In the initial phase of folding, the fasteners are removed thereby permitting the boom portions to pivot relative to each other. The digging boom is conveniently folded by securing the digging chain to one of the foldable boom portions and employing the trencher drive motor as an actuator to achieve the folding action. With the foldable trenching boom of the present invention, an overall decrease in the machine length is attained for transport and maneuverability. Further, when the folded trencher boom is in its transport position, the machine height is decreased and a better distribution of weight is achieved.

REFERENCES:
patent: 2995843 (1961-08-01), Hutchison
patent: 3057088 (1962-10-01), George et al.
patent: 3309802 (1967-03-01), Baker
patent: 3603010 (1971-09-01), Polinek

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