Patent ID: 6425591
Filing Date: 2002-07-30
Classification: B62B

Abstract:
A modular cart, said cart comprising:a load carrying frame; and a wheeled carriage supporting said load carrying frame; said carriage including a front carriage assembly pivotally coupled to a front of said frame and a rear carriage assembly coupled to a rear of said frame; said front carriage assembly further comprising an axle pivotally coupled to said load carrying frame, said axle having a first end and a second end; said rear carriage assembly further comprising an axle coupled to said load carrying frame, said axle having a first end and a second end; an extendable axle arm sleeved within each of said axles, and telescopingly movable with respect to each said axle end between a first retracted position and a second extended position; a plurality of rollers on said extendable axle arms, wherein said rollers bear upon a surface of said axle when said extendable axle arm is telescopically moved with respect to said axle end; and, a wheel assembly attached to the end of each extendable axle.