Patent ID: 6616174
Filing Date: 2003-09-09
Classification: B62B

Abstract:
A sack trolley comprising(a) a support frame having two side legs having upper ends and carrying wheels at lower ends thereof, the carrying wheels being rotatable about a transverse axis, (b) a handle having two side spars having lower ends, (c) hinges connecting the lower ends of the side spars to the upper ends of the side legs and enabling the handle to be pivoted about a transverse axis extending parallel to the transverse axis about which the carrying wheels are rotatable between fixed folded and an extended use positions relative to the support frame, the hinges comprising (1) first hinge sections facing each other, (2) second hinge sections facing away from each other, the hinge sections being pivotal relative to each other, (3) two interengaging groups of friction discs interposed between the hinge sections, one of the groups of it friction discs being torsionally connected to the first hinge section and the other group of friction discs being torsionally connected to the second hinge Section, (d) an intermediate pipe extending coaxially with the transverse axis, about which the handle is pivotal, between and supporting the first hinge sections, and (e) a clamping bolt extending coaxially through the pipe between and supporting the second hinge sections.