Crawler track assembly
OwnerRobert John Turnerinventor
Life of this patent
Estimating the term…
Abstract
A crawler track mechanism including a plurality of track plates each mounted on track chain links, the chain links being interconnected by bushes having an outer sleeve rotatably journalled on an inner sleeve which in turn is rotatably journalled on a central cylindrical pin). A drive sprocket, and if necessary an idler sprocket, includes recesses having a semi-circular cross section to receivably locate the bushes. The bushes, by virtue of the relative rotation between the pin, the inner sleeve and the outer sleeve, reduce friction and wear between the drive sprocket and the chain bushes.
Claims9
A crawler track mechanism for tracked vehicles of a type that include a drive sprocket and an idler sprocket, said crawler track mechanism comprising a plurality of track links and a plurality of bush assemblies, said track links pivotally connected at respective ends to form a continuous track, each said track link comprising a pair of spaced side members joined along their lower edges by a transverse base, said side members including at opposed ends thereof, aligned apertures to receivably locate a respective said bush assembly, each said bush assembly comprising a cylindrical pin having rotatably journalled thereon a first sleeve member and a substantially cylindrical second sleeve member rotatably journalled on said first sleeve member, each said track link being pivotally interconnected to an adjacent track link by a respective said bush assembly, and each said track link comprising first and second releasably engageable body members which clampingly engage respective said bush assemblies in said aligned apertures, whereby disengagement between said first and second body members of adjacent track links permits removal of the bush assembly pivotally interconnecting said adjacent track links.
Dependencies are inferred from the claim text.