Patent ID: 6135484
Filing Date: 2000-10-24
Classification: B62D

Abstract:
A combination tow bar and trailer construction, the trailer having a chassis and a tandem axle, the construction comprising:at least two rigid axles secured to the chassis of the trailer;wheels secured to the opposite ends of each of said two rigid axles;supporting members arranged at said opposite ends of each of said two rigid axles between said two rigid axles and the chassis of the trailer;wherein at least one of said rigid axles includessuspension members arranged at opposite ends of said supporting members, said suspension members being secured at respective first ends to said supporting members and at respective second ends to said chassis;a triangle support pivotally secured to said at least one of said two rigid axles at a location intermediate said opposite ends of said at least one rigid axle and journalled at two locations to opposite sides of said chassis;a tow bar journalled to a front portion of said chassis rotatably relative to a vertical pivot axle and a horizontal pivot axle,a steering lever secured to said tow bar rotatably relative to a center line of said vertical pivot axle, and supporting arms, respectively, secured at first ends to said steering lever on opposite sides of said vertical pivot axle and at opposite ends to said at least one rigid axle adjacent said opposite ends thereof;means coupled to said at least one rigid axle for implementing a turning movement in said at least two rigid axles located behind said at least one rigid axle;second steering levers journalled, respectively, to said opposite sides of said chassis between said two rigid axles, said two rigid axles being coupled to said second steering levers via front and back longitudinal supports on said opposite sides of said chassis, respectively;a transverse symmetry lever journalled behind the other of said two axles to the chassis at a center line thereof; andconnecting rods secured at respective first ends to opposite sides of said symmetry lever, said connecting rods being secured at opposite second ends to said second steering levers.