Roll off hoist with hinged end portion

Patent metadata

Field	Value
Publication number	US-9446700-B2
Application number	US-201313911261-A
Country	US
Kind code	B2
Filing date	Jun 6, 2013
Priority date	Jun 2, 2009
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

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 to 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 container.

First claim

What is claimed is:

1. A system for loading and unloading a container from a transport vehicle comprising:
a. a tilt frame member pivotally attached to a transport vehicle, a system coupled with the tilt frame member for rotating the tilt frame member with respect to the vehicle, the tilt frame member having a length defined by a front end located adjacent to the cab of the transport vehicle and a rear end located at a distance from the cab;
b. an engaging mechanism on the tilt frame member for releasably engaging a container and for assisting in loading and unloading containers from the tilt frame member;
c. a first hydraulic system for moving said engaging mechanism along said tilt frame member;
d. a tail member hingedly attached adjacent said rear end of said tilt frame member, the tail member independent of the tilt frame member toward the ground, the tail member angled toward the ground during loading or unloading of a container, therby creating an angle with respect to the tilt frame member so that the tail member is not parallel to the tilt frame member reducing a tilt frame angle with respect to the vehicle frame; and
e. a second hydraulic system for hingedly rotating said tail member independently of rotation of the tilt frame member and relative to said tilt frame member.

2. The system as described in claim 1 wherein said engaging mechanism is a moveable carriage.

3. The system as described in claim 1 wherein said moveable carriage includes a push member.

4. The system as described in claim 2 wherein said moveable carriage includes a hook lift mechanism.

5. The system as described in claim 4 wherein said hook lift mechanism includes a telescopic jib mechanism.

6. The system as described in claim 2 wherein said moveable carriage includes a cable hoist mechanism.

7. The system as described in claim 2 wherein said moveable carriage includes both a cable, hoist mechanism and a hook lift mechanism.

8. The system as described in claim 7 wherein said hook lift mechanism includes a telescopic jib mechanism.

9. The system as described in claim 1 wherein said first hydraulic system is a single cylinder reeving arrangement.

10. The system as described in claim 9 wherein said single cylinder reeving arrangement comprises a centrally located multi-stage hydraulic cylinder.

11. The system as described in claim 1 wherein said first hydraulic system is a dual cylinder reeving arrangement.

12. The system as described in claim 1 wherein said tilt frame member includes a third hydraulic system for raising said front end of said tilt frame member relative to the vehicle.

13. The system as described in claim 1 further comprising a protective plate member positioned on said tilt frame member.

14. The system as described in claim 1 further comprising a protective plate member positioned on said tail member.

15. A system for loading and unloading containers from a transport vehicle comprising:
an elongated tilt frame member rotatably attached to a transport vehicle, a system coupled with the tilt frame member for rotating the tilt frame member with respect to the vehicle;
a dual cylinder reeving arrangement positioned on the tilt frame member for loading and unloading containers onto and off from a vehicle;
a hinged tail member rotatably attached adjacent a distal end of the tilt frame member, the tail member rotatable independent of the tilt frame member toward the ground, the tail member angled toward the ground during loading or unloading of a container, thereby creating an angle with respect to the tilt frame member so that the tail member is not parallel to the tilt frame member reducing a tilt frame angle with respect to the vehicle frame; and
wherein said tail member can be rotated independently of rotation of the tilt frame member and between a first position in alignment with said tilt frame member and a second position adjacent to the ground.

16. The system as described in claim 15 further comprising:
a first hydraulic mechanism for rotatably tilting said tilt frame member and a second hydraulic mechanism for rotatably moving said hinged tail member between said first and second positions.

17. The system as described in claim 15 wherein said tail member is rotatably connected to said tilt frame member by a pivot member and wherein a cable pulley is positioned on said pivot member.

18. The system as described in claim 15 further comprising a protective plate member positioned on said hinged tail member.

19. The system as described in claim 15 further comprising at least one hold down member on said hinged tail member.

20. A method for loading and unloading containers onto a transport vehicle comprising:
a. providing an elongated tilt frame member rotatably attached to a transport vehicle, a system coupled with the tilt frame member for rotating the tilt frame member with respect to the vehicle;
b. providing a tail member pivotably attached to the rear of the elongated tilt frame member by a pivot member and being actuated by at least one hydraulic cylinder;
c. rotating the tail member independent of the tilt frame system to move the tail member between a first position in alignment with said tilt frame member and a second position adjacent the ground;
d. providing a dual hydraulic cylinder reeving arrangement on said tilt frame member for connecting to containers, said reeving arrangement having a cable member;
e. actuating pivotal rotation of said tail member to said second position, wherein the tail member rotates independent of the tilt frame member toward the ground, the tail member angled toward the ground during loading or unloading of a container, thereby creating an angle with respect to the tilt frame member so that the tail member is not parallel to the tilt frame member reducing a tilt frame angle with respect to the vehicle frame;
f. connecting said cable member of said dual hydraulic cylinder reeving arrangement to a container;
g. activating said dual hydraulic cylinder reeving arrangement to assist in pulling a container up said tail member and onto said tilt frame member; and
h. rotating said tail member to said first position.

Assignees

• Heil Co

Inventors

• Duell Charles A
• Williams Richard T

Classifications

• B60P1/16 Primary

  actuated by fluid-operated mechanisms · CPC title

• B60P1/6463 Primary

  fitted with articulated beams for longitudinal displacement of the container · CPC title

• B60P1/22

  with cables, chains, or the like · CPC title