A towable dump trailer is provided. The towable dump trailer comprises a first, second and third frame. The first frame comprises one or more sets of wheels. The second frame is attached to the tow vehicle and can be displaced horizontally relative to the first frame by the towing vehicle moving rea
A towable dump trailer is provided. The towable dump trailer comprises a first, second and third frame. The first frame comprises one or more sets of wheels. The second frame is attached to the tow vehicle and can be displaced horizontally relative to the first frame by the towing vehicle moving rearward or forward. The third frame provides a support frame for the trailer bed. The dump trailer is operated by immobilizing the first frame and causing the second frame to move horizontally relative to the first frame. This horizontal displacement causes the third frame to rotate as a result of one or more rear torque arms translating the horizontal movement to rotational movement. The dump trailer can be configured to provide a dumping action by either forward or rearward horizontal displacement of the second frame relative to the first frame.
대표청구항▼
1. A dump trailer comprising: a first frame, the first frame bearing one or more sets of wheels;a second frame, the second frame comprising an attachment device to permit coupling to a towing vehicle;a third frame positioned above the first and second frames and providing support for a trailer bed;h
1. A dump trailer comprising: a first frame, the first frame bearing one or more sets of wheels;a second frame, the second frame comprising an attachment device to permit coupling to a towing vehicle;a third frame positioned above the first and second frames and providing support for a trailer bed;horizontal displacement means for permitting horizontal forward and rearward movement of the second frame relative to the first frame, wherein the horizontal displacement means contacts the first frame and the second frame;pivoting means for providing a pivot point for the third frame as the second frame moves horizontally forward and rearward relative to the first frame;one or more rear torque arms, wherein the one or more rear torque arms cause the third frame to pivot about the pivoting means as the second frame moves forward and rearward relative to the first frame;wherein the first, second and third frames comprise one or more longitudinal support beams;wherein the second frame is positioned between the first frame and the third frame and;wherein the horizontal displacement means comprises a pair of attachment plates, an upper roller, and a lower roller, wherein the pair of attachment plates are coupled to a longitudinal support beam of the second frame and extend downward and flank opposite vertical side surfaces of a longitudinal support beam of the first frame, wherein the upper roller is positioned between and contacts a lower horizontal surface of said longitudinal support beam of the second frame and an upper horizontal surface of said longitudinal support beam of the first frame, and wherein the lower roller is positioned such that it contacts a lower horizontal surface of said longitudinal support beam of the first frame. 2. The dump trailer of claim 1, wherein the horizontal displacement means further comprises a side roller, wherein the attachment plates define an opening and wherein the side roller is positioned in the opening and contact vertical side edges of said longitudinal support beam of the first frame. 3. A dump trailer comprising: a first frame, the first frame bearing one or more sets of wheels;a second frame, the second frame comprising an attachment device to permit coupling to a towing vehicle;a third frame positioned above the first and second frames and providing support for a trailer bed;horizontal displacement means for permitting horizontal forward and rearward movement of the second frame relative to the first frame, wherein the horizontal displacement means contacts the first frame and the second frame;vertical elevator means for providing a component of upward force on a front portion of the third frame as the second frame moves horizontally rearward relative to the first frame; anda rear torque arm extending from a rear portion of the first frame to a rear portion of the third frame, wherein the rear torque arm provides a component of downward force on the rear portion of the third frame by pivoting counterclockwise about a lower torque arm pivot point as the second frame moves rearward relative to the first frame;wherein the vertical elevator means comprises: an elevator arm extending from a front portion of the second frame to the front portion of the third frame;a first and second ramped track, wherein the first ramped track is positioned on a first longitudinal support beam of the first frame and the second ramped track is positioned on a second longitudinal support beam of the first frame; anda first and second roller arm each comprising a roller, wherein the first roller arm extends down from a first longitudinal support beam of the third frame and the second roller arm extends down from a second longitudinal support beam of the third frame, wherein the first roller arm is positioned such that its roller contacts the first ramped track and the second roller arm is positioned such that its roller contacts the second ramped track as the second frame moves horizontally rearward relative to first frame. 4. The dump trailer of claim 3 further comprising a stopping means for limiting the counterclockwise pivoting of the rear torque arm. 5. A dump trailer comprising: a first frame connected to a plurality of wheels;a second frame adapted to attach to a towing vehicle; anda third frame attached to a trailer bed and positioned above the first and second frames;wherein one of the front or rear ends of the third frame raises in response to horizontal movement of the second frame and one of the first or second frames is positioned at least partially between the other two frames. 6. The dump trailer of claim 5 further comprising a roller positioned between the first and second frames that facilitates the horizontal movement of the second frame. 7. The dump trailer of claim 6, further comprising a top roller, a bottom roller, a first plate and second plate wherein the first and second plates are attached to the second frame and the top and bottom rollers are secured between the first and second plates. 8. The dump trailer of claim 5 further comprising a polymer positioned between the first and second frames that facilitates the horizontal movement of the second frame. 9. The dump trailer of claim 5, wherein the first frame remains stationary during the horizontal movement of the second frame. 10. The dump trailer of claim 5, wherein forward movement of the second frame moves the third frame into the dump position. 11. The dump trailer of claim 5, wherein rearward movement of the second frame moves the third frame into the dump position. 12. The dump trailer of claim 10, wherein the third frame remains in a fixed horizontal position as it tilts into the dump position. 13. The dump trailer of claim 11, wherein the third frame moves horizontally rearward as it tilts into the dump position. 14. A dump trailer comprising: a first frame connected to a plurality of wheels;a second frame adapted to attach to a towing vehicle;a third frame attached to a trailer bed and positioned above the first and second frames; anda torque arm extending from the first or second frame to the third frame;wherein the torque arm applies downward force to the third frame in response to horizontal movement of the second frame. 15. The dump trailer of claim 14 wherein the torque arm rotates about is pivotally connected to the first or second frame. 16. The dump trailer of claim 14 further comprising a stop member attached to the first frame that limits the rotation of the torque arm. 17. The dump trailer of claim 14, wherein the downward force applied by the torque arm to the third frame causes the third frame to move into the dump position. 18. The dump trailer of claim 14, wherein the first frame remains stationary during the horizontal movement of the second frame. 19. A dump trailer comprising: a first frame connected to a plurality of wheels;a second frame adapted to attach to a towing vehicle;a third frame attached to a trailer bed and positioned above the first and second frames; andan elevator arm attached to the third frame and either the first or second frame;wherein the elevator arm applies upward force to the third frame in response to horizontal movement of the second frame. 20. The dump trailer of claim 19, wherein forward movement of the second frame moves the third frame into the dump position. 21. The dump trailer of claim 19, wherein rearward movement of the second frame moves the third frame into the dump position. 22. The dump trailer of claim 19 wherein the elevator arm is pivotally attached to the second frame. 23. A dump trailer comprising: a first frame connected to a plurality of wheels;a second frame adapted to attach to a towing vehicle; anda third frame attached to a trailer bed and positioned above the first and second frames;wherein the third frame is configured to pivot about a connection to the second frame in response to horizontal movement of the second frame. 24. The dump trailer of claim 23, wherein forward movement of the second frame moves the third frame into the dump position. 25. The dump trailer of claim 23, wherein rearward movement of the second frame moves the third frame into the dump position. 26. The dump trailer of claim 23 further comprising a first vertical post, a second vertical post and a pipe, the vertical posts being attached to the second frame and the pipe connected to the vertical posts. 27. The dump trailer of claim 23 further comprising an angle iron secured to the third frame and a rocker plate secured to the first or second frame. 28. The dump trailer of claim 23, wherein the first frame remains stationary during the horizontal movement of the second frame.
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이 특허에 인용된 특허 (21)
Keech Charles R. (86364 Panorama Rd. Springfield OR 97478), Adjustable utility trailer.
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