Load-sharing unit for load-carrying vehicles - has retractable load carrying wheels held in contact with road by hydraulically powered cylinders

摘要

The heavy load-carrying vehicles such as concrete trucks occasionally require the temporary addition of extra load-carrying wheels in order to reduce load concentrations transmitted to highways to within allowable limits as set by statute and/or regulatory agencies in various states. The load-carrying unit is adapted for attachment to the frame of a heavy load-carrying vehicle such as a concrete truck or the like for mounting outside of both sides of the frame for movement between retracted and load-sharing positions. The load-carrying unit includes first and second wheel assemblies which are movable between the retracted and load-sharing positions independently of each other.