Patent ID: 6726437
Filing Date: 2004-04-27
Classification: B66C,B66F,E02F

Abstract:
A telescoping lift arm assembly having a longitudinal axis and comprising an outer lift arm tube, and an inner lift arm tube, the outer lift arm tube having side wall portions that are spaced apart, and joined by a top wall, and the outer lift arm tube having a lower side, the side wall portions having outwardly flared panels extending at oblique angles relative to a central longitudinal plane bisecting the space between the side wall portions at the lower side of the outer lift arm tube, the inner lift arm tube fitted between the side wall portions of the outer lift arm tube and having outwardly flared flanges at a lower side parallel to the outwardly flared panels on the outer lift arm tube, and the inner lift arm tube having support surfaces at the lower side thereof, and a support plate mounted to the lower side of the outer lift arm tube and engaging the support surfaces of the inner lift arm tube to slidably hold the inner lift arm tube with the outwardly flared flanges underlying and adjacent the outwardly flared panels of the outer lift arm tube.