System and method for loading/unloading containers

• US 8,043,043 B2
• Filed: 05/28/2009
• Issued: 10/25/2011
• Est. Priority Date: 01/28/2004
• Status: Expired due to Fees

• Current Assignee: The Heil Company (Dover Corporation)
• Original Assignee: The Heil Company (Dover Corporation)
• Inventors: Collins, Virgil L.
• Primary Examiner(s): Fox; Charles A
• Application Number:
  US12/473,544
• Publication Number:
  US 20090232629A1
• Time in Patent Office: 880 Days
• Field of Search: 414/346, 414/477, 414/812, 414/469, 414/525.7, 414/525.8
• US Class Current: 414/812
• CPC Class Codes: B60P 1/6454 the load transporting element being shifted by means of an inclined ramp connected to the vehicle
• CPC Class Codes: B60P 1/6463 fitted with articulated beams for longitudinal displacement of the container

Abstract

A container handling system and method for a wheeled transport vehicle is disclosed that is capable of loading and unloading large containers using both a hook lift and cable winch mechanisms.

Claims

1. A method for unloading material in a container removably positioned on a transport vehicle, the vehicle having a cab, a body member, a tilt frame member rotatably attached to the body member, and a tilt hydraulic cylinder mechanism for tilting the tilt frame member relative to the body member, the method comprising the steps of:

(a) providing a movable carriage member on said tilt frame member;

(b) providing a multi-stage central hydraulic cylinder for moving said carriage member longitudinally along said tilt frame member, said central hydraulic cylinder having a first end connected to said tilt frame distal to said cab member and second end connected to said carriage member;

(c) attaching said movable carriage member to the container;

(d) positioning the transport vehicle adjacent a dump site;

(e) activating said tilt hydraulic cylinder mechanism and elevating the end of the tilt frame adjacent the cab member; and

(f) repeatedly activating said central hydraulic cylinder to cause said carriage member and container to move longitudinally back and forth along a portion of the length of the tilt frame member and thereby imparting a shaking action to the container in order to assist in unloading material from the container.

2. The method as set forth in claim 1 further comprising providing a slideable support member on said tilt frame member to support said multi-stage central hydraulic cylinder.

3. The method as set forth in claim 1 further comprising providing a jib and hook member on said movable carriage member and wherein the step of attaching said movable carriage member to the container comprises connecting said hook member to the container.

4. The method as set forth in claim 1 further comprising providing a cable and sheave mechanism on said tilt frame member and said moveable carriage member and wherein the step of attaching said moveable carriage member to the container comprises connecting said cable and sheave mechanism to the container.

5. The method as set forth in claim 1 wherein said movable carriage member is adapted to move longitudinally substantially along the length of said tilt frame member.

6. The method as set forth in claim 1 wherein said multi-stage central hydraulic cylinder has at least two stages, and wherein the smallest diameter stage is positioned at the first end connected to said tilt frame member and the largest diameter stage is positioned at the second end connected to said carriage member.

7. The method as set forth in claim 1 wherein said container has an elongated rectangular-shaped structure.

8. The method as set forth in claim 1 wherein said tilt hydraulic cylinder mechanism comprises a pair of hydraulic cylinders attached at one end to the vehicle body member and attached at the other end to the tilt frame member.

9. A system for loading or unloading a container from a transport vehicle comprising:

(a) a transport vehicle having a cab member and a body member;

(b) a tilt frame member rotatably attached to said body member;

(c) a tilt hydraulic cylinder mechanism for tilting said tilt frame member relative to said body member;

(d) a carriage member slidingly positioned on said tilt frame member and adapted for sliding movement longitudinally along said tilt frame member;

(e) a multi-stage central hydraulic cylinder member positioned on said tilt frame member for moving said carriage member longitudinally along said tilt frame member;

(f) a cable and sheave mechanism for use in loading containers onto said transport vehicle, said cable and sheave mechanism comprising a sheave member positioned on said carriage member and an elongated cable member, said cable member having a first end attached adjacent the distal end of said tilt frame member, a second end having a container connecting mechanism thereon, and a portion positioned on said sheave member; and

(g) wherein movement of said carriage member longitudinally along said tilt frame member changes the length of said cable member adjacent said container connecting mechanism.

10. The system as set forth in claim 9 further comprising a slidable support member on said tilt frame member for supporting said central hydraulic cylinder.

11. The system as set forth in claim 9 wherein said multi-stage central hydraulic cylinder has at least three stages, and wherein the smallest diameter stage is positioned at the first end connected to said tilt frame member and the largest diameter stage is positioned at the second end connected to said carriage member.

12. The system as set forth in claim 9 wherein said movable carriage member is adapted to move longitudinally substantially along the length of said tilt frame member.

13. The system as set forth in claim 9 further comprising a jib member on said movable carriage member, said jib member having a hook member thereon for attachment to a container.

14. The system as set forth in claim 13 further comprising a jib hydraulic cylinder mechanism for rotating said jib member relative to said carriage member.

15. A system for loading and unloading a container from a transport vehicle comprising:

(a) a transport vehicle having a cab member and a body member;

(b) a tilt frame member rotatably attached to said body member;

(c) a tilt hydraulic cylinder mechanism for tilting said tilt frame member relative to said body member;

(d) a carriage member slidingly positioned on said tilt frame member and adapted for sliding movement longitudinally along said tilt frame member;

(e) a multi-stage central hydraulic cylinder member positioned on said tilt frame member for moving said carriage member longitudinally along said tilt frame member; and

(f) a slidable support member on said tilt frame member for supporting said central hydraulic cylinder.

16. The system as set forth in claim 15 further comprising means for connecting said carriage member to a container.

17. The system as set forth in claim 16 wherein said means comprises a jib and hook mechanism.

18. The system as set forth in claim 16 wherein said means comprises a cable and sheave mechanism.

19. The system as set forth in claim 18 wherein said cable and sheave mechanism comprises a sheave member positioned on said carriage member and an elongated cable member, said cable member having a first end attached adjacent the distal end of said tilt frame member, a second end having a container connecting mechanism thereon, and a portion positioned on said sheave member.

20. The system as set forth in claim 15 wherein said multi-stage central hydraulic cylinder has at least three stages, and wherein the smallest diameter stage is positioned at the first end connected to said tilt frame member and the largest diameter stage is positioned at the second end connected to said carriage member.

21. A tilt frame system for mounting on a transport vehicle and for use in loading and unloading containers on the transport vehicle, the transport vehicle having a cab member for use in driving the vehicle and an elongated body member for mounting of said tilt frame system thereon, said tilt frame system comprising:

(a) an elongated tilt frame member;

(b) a rotating mounting mechanism for mounting said tilt frame member on a body member of a transport vehicle and for allowing the tilt frame member to rotate relative to the body member;

(c) a tilt hydraulic cylinder mechanism for tilting said tilt frame member, said tilt hydraulic cylinder mechanism attached to said tilt frame member and adapted to be attached also to a body member of a transport vehicle;

(d) a carriage member slidably mounted on said tilt frame member for longitudinal movement thereon;

(e) a multi-stage central hydraulic cylinder member on said tilt frame member, said central hydraulic cylinder member connected at one end to said tilt frame member and connected at the other end to said carriage member;

(f) a slidable support member on said tilt frame member for supporting said central hydraulic cylinder; and

(g) a connecting mechanism for attaching said carriage member to a container.

22. The tilt frame system as set forth in claim 21 wherein said connecting mechanism comprises a jib and hook mechanism, said jib and hook mechanism comprises a jib member attached to said carriage member.

23. The system as set forth in claim 22 further comprising a jib hydraulic cylinder mechanism for rotating said jib member relative to said carriage member.

24. The system as set forth in claim 21 wherein said connecting mechanism comprises a cable and sheave mechanism.

25. The system as set forth in claim 24 wherein said cable and sheave mechanism comprises a sheave member positioned on said carriage member and an elongated cable member, said cable member having a first end attached adjacent the distal end of said tilt frame member, secured end having a container connecting mechanism thereon, and a portion positioned on said sheave member.

26. The tilt frame system as set forth in claim 21 wherein said connecting mechanism comprises a jib and hook mechanism and a cable and sheave mechanism.

27. The tilt frame system as set forth in claim 26 wherein said jib and hook mechanism comprises a jib member attached to said carriage member and a jib hydraulic cylinder mechanism for rotating said jib member relative to said carriage member.

28. The tilt frame system as set forth in claim 26 wherein said cable and sheave mechanism comprises a sheave member positioned on said carriage member and an elongated cable member, said cable member having a first end attached adjacent the distal end of said tilt frame member, secured end having a container connecting mechanism thereon, and a portion positioned on said sheave member.