| 摘要 |
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.
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