Object lifting device that converts opposing angled lifting forces to girthing forces

• US 20050057056A1
• Filed: 07/16/2004
• Published: 03/17/2005
• Est. Priority Date: 09/19/2003
• Status: Active Grant

• Current Assignee: Pale Trading Co.
• Original Assignee: Daniel M. Davis
• Inventors: Davis, Daniel M.
• Granted Patent: US 7,182,379 B2
• Time in Patent Office: Days
• US Class Current: 294/152
• CPC Class Codes: A45F 2003/142 Carrying-straps
• CPC Class Codes: A45F 3/14 Carrying-straps; Pack-carrying harnesses
• CPC Class Codes: B25B 9/00 Hand-held gripping tools other than those covered by group B25B7/00 wrenches B25B13/00; specially adapted for watchmakers' or like use G04D
• CPC Class Codes: B65G 2201/02 Articles
• CPC Class Codes: B65G 7/12 Load carriers, e.g. hooks, slings, harness, gloves, modified for load carrying

Abstract

An embodiment of an object lifting device includes compression straps to which gathering loops and handles are secured. In use, the straps and gathering loops encircle an object to be lifted. A pulling force applied to the handles causes the gathering loops to draw the ends of the straps toward each other, which results in the straps bearing upon the object to be lifted. While the object is held suspended, the weight of the object helps maintain the pulling pressure on the gathering loops and the consequent girthing action by the straps. The object is thus firmly secured by the device allowing it to be safely and easily lifted and transported.

Claims

1. An object lifting device, comprising:

a plurality of compression straps, each of which is configured to bear against a surface of an object to be lifted;

a plurality of gathering loops, each of which is comprised of a flexible material that is slidably engaged with at least two of the compression straps to draw an end of one compression strap toward an opposing end of another compression strap when the gathering loops are pulled;

a plurality of handles, each of which is attached to a gathering loop and adapted to pull the respective gathering loop when an object is lifted; and

a length adjusting mechanism adapted to adjust the length of a gathering loop between the handle and the compression strap to which the gathering loop is attached.

2. The object lifting device of claim 1, wherein a hole is defined through each end of the compression straps, and wherein each gathering loop is slidingly engaged with the compression straps by passing the flexible material of the gathering loop through the hole at the end of one compression strap and the hole at an opposing end of another compression strap.

3. The object lifting device of claim 1, wherein an end of a compression strap has a securing mechanism attached thereto configured to detachably connect to a gathering loop and thereby slidingly engage the material of the gathering loop.

4. The object lifting device of claim 3, wherein the securing mechanism is a clip that is configured to clip and unclip from a gathering loop and thereby attach and detach the compression strap from the gathering loop.

5. The object lifting device of claim 1, wherein at least one of the handles includes one or more slots through which the material of a gathering loop passes, and wherein the length adjusting mechanism is a D-ring that acts in conjunction with the slots to secure the gathering loop at a desired length to the respective handle.

6. The object lifting device of claim 1, wherein the object lifting device includes three or more compression straps, gathering loops, and handles.

7. The object lifting device of claim 1, further comprising a shoulder strap for attachment to one of the handles.

8. The object lifting device of claim 1, wherein one or more of the strap ends has a shackle attached thereto through which the material of a gathering loop passes and thereby slidingly engages the strap.

9. The object lifting device of claim 1, wherein one or more of the compression straps further includes a reinforcing strap affixed thereto.

10. The object lifting device of claim 1, further comprising a cradling strap configured to secure at one end to a compression strap, pass under the object being lifted, and secure at the other end to another compression strap.

11. The object lifting device of claim 10, wherein the ends of the cradling strap each have a hook that detachably secures to a hooking loop affixed to the compression straps.

12. An object lifting device, comprising an arrangement of compression straps and gathering loops that, when connected, encircle an object to be lifted,

wherein each compression strap has a first end and a second end,

wherein each gathering loop is configured to detachably connect the second end of one compression strap to the first end of another compression strap in sliding engagement whereby pulling tension on the gathering loops draws the first and second ends of the respective compression straps toward each other and causes the compression straps to bear against a surface of an object to be lifted, and

wherein detachment of a gathering loop from a compression strap enables the object lifting device to be laterally removed from the object without bringing the device over the top or under the bottom of the object.

13. The object lifting device of claim 12, further comprising a handle attached to each gathering loop for applying pulling tension to the gathering loop.

14. The object lifting device of claim 12, wherein a gathering loop is attached to one of the first or second end of a compression strap to detachably connect the compression straps together.

15. The object lifting device of claim 12, wherein a gathering loop is attached to both the first and second ends of the compression straps to detachably connect the compression straps together.

16. The object lifting device of claim 12, wherein three compression straps and three gathering loops are connected in alternating series in which a first gathering loop detachably connects first and second compression straps, a second gathering loop detachably connects the second and third compression straps, and a third gathering loop detachably connects the third and first compression straps.

17. The object lifting device of claim 16, wherein one or more additional compression straps and gathering loops are connected in alternating series.

18. An object lifting device, comprising:

straps, each of which is formed using a single mold design and including a first part of a two-part detachable connecting mechanism; and

gathering loops, each of which is formed of a flexible material that carries a second part of the two-part detachable connecting mechanism,

wherein the two-part connecting mechanisms are configured to connect the straps to each other in a series and encircle an object to be lifted, said straps bearing against a surface of the object to be lifted when the gathering loops are pulled.

19. The object lifting device of claim 18, wherein the straps are formed using an injection molding process.

20. The object lifting device of claim 18, wherein the first part of the two-part connecting mechanism is integrally formed with each strap.

21. The object lifting device of claim 18, wherein the second part of the two-part connecting mechanism is configured to slide along a length of the gathering loop on which it is carried.

22. The object lifting device of claim 18, wherein a gathering loop carries two second parts of two-part connecting mechanisms that detachably connect the gathering loop to two of the straps.

23. The object lifting device of claim 18, wherein all of the gathering loops are configured to detachably connect between the straps in the series.

24. An object lifting device, comprising:

strap means for bearing against a surface of an object to be lifted; and

loop means for detachably connecting the strap means around an object to be lifted and for drawing the strap means against the object to be lifted when the loop means are pulled,

wherein detachment of the loop means from the strap means enables the object lifting device to be laterally removed from the object to be lifted without bringing the device over the top or under the bottom of the object.

25. The object lifting device of claim 24, further comprising handle means attached to the loop means for pulling the loop means and lifting an object.

26. The object lifting device of claim 25, further comprising a shoulder strap attached to the handle means.

27. The object lifting device of claim 25, further comprising length adjustment means for adjusting the length of the loop means between the strap means and the handle means.

28. The object lifting device of claim 24, further comprising hoisting means attached to the loop means for pulling the loop means and lifting an object.

29. The object lifting device of claim 28, wherein the hoisting means is a spreader bar to which the loop means is attached.

30. The object lifting device of claim 24, further comprising cradling means connected to the strap means under the object to be lifted.