Side dump trailer with retractable chute

A stable dump cart capable of operating in a low overhead environment for the discharge of materials from the cart into a container having a relatively high side, the cart comprising:

• a support frame including a plurality of spaced-apart members supporting the frame on the ground;
• a bin carried by the frame for receiving materials that are to be dumped into the container;
• means attached to the frame of the bin for moving the bin in a vertical direction between a lowermost material receiving position and an uppermost position, from which the materials are discharged into the container;
• means attached to the vertical movement means for tilting the bin from the material receiving and holding position into an inclined material dumping position, the tilting means being disposed within the lateral extent of the support members to thereby avoid any instability of the cart during the dumping operation, the tilting means comprising means for pivoting the bin about a substantially horizontal axis;
• wherein the bin has at least one side wall extending in the direction of the pivot axis of the bin;
• and means for guiding materials being dumped from the bin laterally past the support members into the container position adjacent the cart and laterally spaced from the support members, and wherein the material guiding means comprises extender means for extending the effective length of the side wall past the uppermost edge of the bin and retracting the extender means when the bin is pivoted between its material dumping position and its normal, material receiving position, respectively, at least a major portion of the extender means being disposed below the uppermost bin edge when the bin is in its normal position.

A stable dump cart capable of operating in a low overhead environment for the discharge of materials from the cart into a container having a relatively high side, the cart comprising a support base including a plurality of laterally spaced apart wheels supporting the base on the ground;

• an open mouthed bin;
• a cradle for carrying the open mouthed bin;
• telescopic towers vertically disposed at the front and the rear of the base for supporting said cradle;
• hydraulic actuating means disposed between said base and said towers for raising and lowering said towers;
• means for pivoting said bin on said cradle about a longitudinal axis;
• a second pair of spaced apart hydraulic actuator means disposed at the front and rear of said cradle operative for tilting said bin about said pivoting means;
• means for flowing hydraulic fluid under pressure to said hydraulic actuators;
• means for sensing the relative height of the front and rear of said cradle and for adjusting the rate of flow to hydraulic actuators raising said cradle so that said actuators move at substantially identical rates when the fluid flowing means is actuated;
• material guiding means including extender means for advancing the effective length of an outwardly extending side wall of said bin along said horizontal pivoting means past an uppermost of said bin and for retracting said extender means when the bin is pivoted between its material dumping position and its normal, material receiving position, respectively, at least a major portion of said extender means being diposed below the uppermost bin edge when the bin is in its normal position, said extender means including a first chute plate having a size and shape complimentary to that of said outwardly extending bin side wall and being located on an exterior of said outwardly extending bin side wall and including means for securing said chute plate to said bin side wall and for linearly guiding said chute plate in movement relative to said bin side wall between its retracted and extended positions, said extender means further including a pair of spaced apart sideboard plates which are closely adjacent and parallel to bin front side and rear side walls;
• means for moving said end plates with said chute plates between a retracted position, in which the end plates substantially fully overlap said bin front side and rear side walls, and an extended position in which said plates effectively extend the end walls past their uppermost edge;
• a generally U-shaped lip member for extending the effective length of said chute plate when said chute plate is in its extended position;
• lip member pivoting means connected to a free end of said chute plate including link means attached to said bin for pivotal movement about a generally longitudinal axis parallel to said pivot axis of said bin, means connecting a first end of said link means with said chute plates, and means pivotally connecting a second end of said link means to the vertical movement means for pivoting said lip member about a substantially longitudinal axis, disposed parallel to said chute plate between a first position, in which a center section of said lip member is angularly inclined relative to said chute plate, and a second position, in which the center section is substantially parallel and aligned with said chute member, whereby pivotal movement of said bin between its retracted position causes said link means to extend and retract said chute plate, said U-shaped lip member, and said end plates for preventing spillage of material being dumped and flowing over the portion of the chute plate and U-shaped lip extending beyond the uppermost edge of said bin.