Patent ID: 7004705
Filing Date: 2006-02-28
Classification: B62D

Abstract:
1. A wheeled dolly structure comprising base means having a longitudinal axis ( 12 ) and being of heavy, strong steel construction capable of carrying 5 to 30 or more tons of load and transporting the same over difficult roadways wherein girder means are provided on the dolly and are adapted to be connected to supporting beam means of a load, a at least two pairs of axle means mounted on said base means on a lateral axes ( 26 ) oriented normal to said longitudinal axis and lying on opposite lateral sides ( 15 ) and ( 19 ) of said longitudinal axis, each said pair comprising an outboard axle means and an inboard axle means, outboard wheel means mounted on outboard axle means on opposite sides ( 15 ) and ( 19 ) of said longitudinal axis ( 12 ) and spaced laterally from said longitudinal axis a distance of from three to six feet, inboard wheel means mounted on inboard axle means on said opposite sides ( 15 ) and ( 19 ) and laterally spaced from said longitudinal axis ( 12 ) a distance of from six inches to three feet, whereby when a narrow roadway is encountered the operator can position the inboard wheel means thereon such that either or both of the outboard wheel means may actually be suspended off the sides of the roadway until the roadway regains a normal width, and wherein a steering mechanism is mounted on said base means for synchronously pivoting all said wheel means thru a steering angle whereby the dolly structure and load can be steered straight ahead or in sideways angular directions to avoid obstacles and to allow maneuvering of a long load around corners which are too sharp for negotiation by conventional transport means.