Patent ID: 7942480
Filing Date: 2011-05-17
Classification: B60P,Y10T

Abstract:
1. A mini-sized side dump trailer adapted to be pulled by a small vehicle, including a hydraulic pump system, comprising: an elongated trailer frame having a forward end, a rearward end, a first side and a second side; a power means mounted on one of said trailer frame or the vehicle; a pair of wheels which support the frame at the rearward end thereof; a steerable wheel assembly which supports the frame at the forward end thereof; an elongated tongue having rearward and forward ends; said rearward end of said tongue being secured to said steerable wheel assembly and extending forwardly therefrom; said forward end of said tongue adapted to be secured to the small vehicle; a side dump body having rearward and forward ends, a first side and a second side movably mounted on said trailer frame and including a bottom wall, first and second side walls, a forward end wall, a rearward end wall and an open upper end; said forward end wall having first and second frames members secured thereto, having upper and lower ends, which define an inverted V-shape; a first longitudinally extending hinge pin secured to said lower end of said first frame member; a second longitudinally extending hinge pin secured to said lower end of said second frame member; said rearward end wall having third and fourth frame members secured thereto, having upper and lower ends, which define an inverted V-shape; a third longitudinally extending hinge pin secured to said lower end of said third frame member; a fourth longitudinally extending hinge pin secured to said lower end of said fourth frame member; a first hinge pin receptacle mounted on said frame adjacent the forward end thereof at said first side thereof; a second hinge pin receptacle mounted on said frame adjacent the forward end thereof at said second side thereof; a third hinge pin receptacle mounted on said frame adjacent the rearward end thereof at said first side thereof; a fourth hinge pin receptacle mounted on said frame adjacent the rearward end thereof at said second side thereof; said first, second, third and fourth hinge pin receptacles adapted to selectively receive said first, second, third and fourth hinge pins therein respectively; each of said hinge pin receptacles having a locking mechanism associated therewith which is movable between locked and unlocked positions; each of said locking mechanisms, when in said locked position, maintaining the associated hinge pin in the associated hinge pin receptacle; each of said locking mechanisms, when in said unlocked position, permitting the associated hinge pin in the associated hinge pin receptacle to move out of engagement therewith; a forward hydraulic cylinder positioned forwardly of said forward end wall and having a base end pivotally secured to said frame and a rod end pivotally secured to said forward end wall; a rearward hydraulic cylinder positioned rearwardly of said rearward end wall and having a base end pivotally secured to said frame and a rod end pivotally secured to said rearward end wall; the extension of said forward and rearward hydraulic cylinder causing said side dump body to be pivotally moved to a first side dumping position when said first and third hinge pins are locked into said first and third hinge pin receptacles respectively and said second and fourth hinge pins are not locked into said second and fourth hinge pin receptacles respectively by the associated locking mechanism; the extension of said forward and rearward hydraulic cylinders causing said side dump body to be pivotally moved to a second side dumping position when said second and fourth hinge pins are locked into said second and fourth hinge pin receptacles respectively by the associated locking mechanism and said first and third hinge pins are not locked into said first and third hinge pin receptacles respectively; said forward and rearward hydraulic cylinders being adapted to be fluidly connected to said power means; each of said forward and rearward cylinders having first and second inlet or outlet ports and wherein said power means includes a 12-volt DC battery, a 12-volt DC motor electrically connected to said battery, a hydraulic pump driven by said motor and having an inlet port and an outlet port, a hydraulic reservoir having an inlet port and an outlet port, said outlet port of said reservoir being fluidly connected to said inlet port of said pump, an electrically operated valve means including a first inlet port fluidly connected to said outlet port of said pump, a second inlet or outlet port, a third inlet or outlet port, and an outlet port which is fluidly connected to said inlet port of said reservoir, said second inlet or outlet port of said valve means being fluidly connected to each of said first inlet or outlet ports of said forward and rearward hydraulic cylinders, said third inlet or outlet port being fluidly connected to each of said second inlet or outlet ports of said forward and rearward hydraulic cylinders; said valve means including a fifth inlet port and a sixth outlet port for selective fluid connection to the vehicle hydraulic pump system.