Grapple attachment for log loader

Details Grapple attachment for log loader Grapple attachment for log loader

1983-11-09

1985-07-16

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294104, 294 6722, 414622, 414740, B66F 918

Patent

active

045292396

ABSTRACT:
A grapple attachment for log loader of a type in which a main frame comprises a pair of tines integrally joined to and extended forwardly from both lateral ends at the bottom thereof and a pair of clamp arms each pivoted on both lateral ends at the top thereof and driven vertically rotatably by a hydraulic cylinder and piston means, is improved according to this invention in that the main frame comprises a pair of support posts disposed on both lateral ends thereof and a beam assembly generally of an X-shaped configuration disposed between the support posts for connecting the same. The X-shaped beam may be of a hollow structure reinforced with web members such as lattice bars integrally secured to the inside of the hollow beam. In a modified embodiment, the pivotal structure for the clamp arm disposed on each of the support posts is formed with a multi-forked bracket composed of three or more equi-spaced bracket plates, which rotatably receive the pivotal end plates of the clamp arm in the corresponding bracket spaces respectively.

REFERENCES:
patent: 1895939 (1933-01-01), Presbrey
patent: 2681741 (1954-06-01), Bickerstaff
patent: 2776768 (1957-01-01), Carlson
patent: 3034820 (1962-05-01), Schwartz et al.
patent: 3203566 (1965-08-01), Kampert et al.
patent: 3332716 (1967-07-01), Gridley
patent: 4266819 (1981-05-01), Pemberton

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