Patent ID: 6571970
Filing Date: 2003-06-03
Classification: B62D,B66F

Abstract:
A load carrier for supporting, raising, and lowering a load, said load carrier comprising:a frame member adapted for being movably supported by a rail; a telescoping mast supported by said frame member; a support frame supported by said telescoping mast, said support frame being adapted for supporting the load thereby, said telescoping mast including at least one fixed mast section and at least one movable mast section, said support frame being coupled to said movable mast section, said movable mast section being supported for movement between a plurality of extended positions in which said support frame is lowered and raised with respect to said frame member and said fixed mast section, said movable mast section being guided by said fixed mast section when said movable mast section is moved to its extended positions; and a driver selectively moving said movable mast section to said extended positions, said movable mast section including a lift sheave, said driver including at least one cord extending through said movable mast section and around said lift sheave for raising and lowering said movable mast section with respect to said fixed mast section and said frame member, and said cord being arranged whereby said cord bends in a single direction to eliminate back bending in said cord and thereby increasing the longevity of said cord.