Roll off hoist with hinged tail and hydraulic reeving system
First Claim
Patent Images
1. A system for loading and unloading containers onto and off from a transport vehicle comprising:
- an elongated tilt frame member pivotally attached to a transport vehicle, the tilt frame member including a pair of continuously rigid side rails extending from a forward end positioned adjacent a cab of the transport vehicle to a rear end, the rear end positioned behind all vehicle wheels, and during loading and unloading of a container onto and off of the transport vehicle, the forward end of the tilt frame moves upward while the rear end of the tilt frame moves downward;
a dual cylinder reeving arrangement, including a cable, positioned on the tilt frame member for loading and unloading containers onto and off from the transport vehicle; and
a hinged tail member pivotally attached to the tilt frame member at its rear end and positioned behind all vehicle wheels;
wherein said tail member can be rotated between a first position in alignment with said tilt frame member and a second position lowered to contact the ground and when the tail member is at a maximum angle with respect to the rear end of the elongated tilt frame in the second position, a resultant angular pull of the cable provides a greater vertical pulling force and less horizontal pulling force on the container being loaded onto the elongated tilt frame.
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Accused Products
Abstract
A container handling system and method for a wheeled transport vehicle is disclosed that is capable of loading and unloading containers, particularly in locations where the overhead height is limited. A hinged tail member at the rear end of the elongated body (a/k/a tilt frame member) is rotated adjacent the ground allowing the containers to be loaded and unloaded without rotating the tilt frame to its maximum height. A cable reeving arrangement, such as a dual reeving arrangement, can be utilized to load and unload the containers.
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Citations
29 Claims
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1. A system for loading and unloading containers onto and off from a transport vehicle comprising:
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an elongated tilt frame member pivotally attached to a transport vehicle, the tilt frame member including a pair of continuously rigid side rails extending from a forward end positioned adjacent a cab of the transport vehicle to a rear end, the rear end positioned behind all vehicle wheels, and during loading and unloading of a container onto and off of the transport vehicle, the forward end of the tilt frame moves upward while the rear end of the tilt frame moves downward; a dual cylinder reeving arrangement, including a cable, positioned on the tilt frame member for loading and unloading containers onto and off from the transport vehicle; and a hinged tail member pivotally attached to the tilt frame member at its rear end and positioned behind all vehicle wheels; wherein said tail member can be rotated between a first position in alignment with said tilt frame member and a second position lowered to contact the ground and when the tail member is at a maximum angle with respect to the rear end of the elongated tilt frame in the second position, a resultant angular pull of the cable provides a greater vertical pulling force and less horizontal pulling force on the container being loaded onto the elongated tilt frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for loading and unloading containers onto and off from a transport vehicle comprising:
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an elongated tilt frame member rotatably attached to a transport vehicle, the tilt frame member including a pair of continuously rigid side rails extending from a forward end positioned adjacent a cab of the transport vehicle to a rear end, the rear end positioned behind all vehicle wheels, and during loading and unloading of a container onto and off of the transport vehicle, the forward end of the tilt frame moves upward while the rear end of the tilt frame moves downward; a single cylinder reeving arrangement, including a cable, positioned on the tilt frame member for loading and unloading containers onto and off from the transport vehicle; and a hinged tail member pivotally attached to the tilt frame member at its rear end and positioned behind all vehicle wheels; wherein said tail member can be rotated between a first position in alignment with said tilt frame member and a second position lowered to contact the ground and when the tail member is at a maximum angle with respect to the rear end of the elongated tilt frame in the second position, a resultant angular pull of the cable provides a greater vertical pulling force and less horizontal pulling force on the container being loaded onto the elongated tilt frame. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for loading and unloading containers onto and off from a transport vehicle comprising:
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a. providing an elongated tilt frame member including a pair of continuously rigid side rails extending from a forward end positioned adjacent a cab of the transport vehicle to a rear end, the tilt frame rotatably attached to a transport vehicle; b. providing a tail member pivotably attached to the rear end of the elongated tilt frame member by a pivot member and being actuated by at least one hydraulic cylinder, said tail member being behind all wheels of the vehicle and rotatable between a first position in alignment with said tilt frame member and a second position lowered toward the ground, and during loading and unloading of a container onto and off of the transport vehicle, the forward end of the tilt frame moves upward while the rear end of the tilt frame moves downward; c. providing a hydraulic cylinder reeving arrangement on said tilt frame member for connecting to containers, said reeving arrangement having a cable member; d. actuating pivotal rotation of said tail member from said first position to assist in loading or unloading containers; e. connecting said cable member of said hydraulic cylinder reeving arrangement to a container; and f. activating said hydraulic cylinder reeving arrangement to assist in loading or unloading a container onto said tail member and said tilt frame member and when the tail member is at a maximum angle with respect to the rear end of the elongated tilt frame in the second position, a resultant angular pull of the cable provides a greater vertical pulling force and less horizontal pulling force on the container being loaded onto the elongated tilt frame. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification