The field of the present invention relates to backpacks. In particular, a backpack strap system is described herein for carrying loads of various sizes and/or shapes.
While hunting or otherwise enjoying the back country, it is often the case that loads of various sizes and/or shapes (including oversize loads) must be carried by people on foot, on horseback, or on an all-terrain vehicle (ATV). For example, successful hunters are often faced with the daunting task of hauling the kill back to a camp, dwelling, shelter, or vehicle (car or truck). In another not-uncommon situation, a person who has become ill, injured, or otherwise disabled or incapacitated may need to be carried out of the woods to safety and medical attention. Once again, the person's companions may be faced with the difficult task of transporting the person to a location accessible to emergency medical personnel, or repeated treks between the person and potential sources of assistance. In each of these cases, apparatus and methods for enabling a user (particularly if alone and on foot) to carry loads of various sizes and/or shapes would be of much utility. Such apparatus and methods may be particularly well-suited for carrying an oversize load (animal carcass, ill or injured companion, or other large load). However, any such apparatus must be lightweight and readily stowed or carried, given the outdoor or backwoods environment in which it would likely be needed. It is therefore desirable to provide apparatus and methods for carrying loads of various sizes and/or shapes that addresses various of these drawbacks.
Certain aspects of the present invention may advance the state-of-the-art of backpacks and other carrying devices, and in addition may meet one or more of the following objects:
To provide a backpack strap system for enabling one user to carry an oversized load;
To provide a backpack strap system for carrying loads of various shapes and sizes;
To provide a backpack strap system wherein a sheet and several load straps are wrapped around the load;
To provide a backpack strap system wherein the load may be carried using shoulder straps;
To provide a backpack strap system wherein the load may be carried suspended from another backpack;
To provide a backpack strap system wherein the load may be carried suspended from a hook, saddle, or ATV;
To provide a backpack strap system for enabling one user to carry an oversized animal carcass or an oversized portion thereof;
To provide a backpack strap system for enabling one user to carry another person;
To provide a backpack strap system that may be converted to a standard backpack;
To provide a backpack strap system that may be converted to a standard backpack and that may carry removable auxiliary containers secured therein; and
To provide a backpack strap system wherein an auxiliary pack may be carried;
To provide a backpack strap system that may be used for search and rescue operations and/or military operations.
One or more of the foregoing objects may be achieved in the present invention by an apparatus for carrying a load, the apparatus comprising: a) an elongated sheet of flexible material; b) two or more vertical load straps each attached at the top and bottom edges of the sheet; and c) two or more horizontal load straps each attached at the first and second side edges of the sheet. The sheet and load straps are adapted for wrapping around and securing loads or various sizes and/or shapes. The top edge of the sheet is adapted for carrying the load, usually on foot, by shoulder straps, carrying straps, and/or a hanging strap secured thereto. A load is laid on the upper portion of the sheet, and the bottom edge of the sheet is drawn up and over the load toward the top edge, thereby wrapping the sheet at least partially around the load. The load straps are wrapped around the load to secure it, enabling the load to be lifted and/or carried. Some examples of loads that might be carried are animal carcasses or parts thereof, firewood, or another person. The sheet may be further adapted to carry an auxiliary pack, to fold up and function as an ordinary backpack, and/or to carry auxiliary storage containers or pouches therein.
Additional objects and advantages of the present invention may become apparent upon referring to the preferred and alternative embodiments of the present invention as illustrated in the drawings and described in the following written description and/or claims.
The embodiments illustrated in the Figures are exemplary and should not be construed as limiting the scope of inventive concepts disclosed and/or claimed herein.
To secure a load, sheet 102 is laid substantially flat with the back surface of the sheet facing up and with the load straps separated (FIG. 8A). A load 10 is placed on an upper portion of the flattened sheet (
Sheet 102 is adapted near the top edge thereof for being lifted and carried once the load is secured. Shoulder straps 112 may be provided, attached at an upper end thereof to the sheet 102 near the top edge of the sheet and attached at a lower end thereof along side edges of the sheet. Shoulder straps 112 may be provided in any suitable manner, and may variously employ padding or cushioning, length adjustment, and/or connection/separation (via buckles, clips, ties, hooks, clasps, buttons, snaps, hook-and-loop connectors, and so forth as described above). The shoulder straps 112 enable a load to be carried with the shoulder straps 112 over the shoulders of a user 12, with the front surface of the sheet 102 in contact with the user's back (FIG. 2).
Alternatively, sheet 102 may be provided with a pair of carrying straps 114 and 116, each having both ends attached to the sheet near the top edge. These carrying straps may be used to hang the sheet 102 (and any load wrapped therein) from the shoulder straps 22 of another backpack 20 (FIG. 4). As with the load straps, the carrying straps may be divided into segments 114a/114b and 116a/116b that are adapted in any suitable manner for repeated separation and reconnection, and may be provided in any suitable form. A load 10 wrapped in sheet 102 and load straps 104/106/108/110 may be carried with carrying straps 114/116 around shoulder straps 22 and with the front surface of sheet 102 in contact with backpack 20. It may be advantageous for a user to carry sheet 102 with its associated straps folded (or rolled) and stowed within backpack 20, to be removed and deployed if/when needed.
The top edge of the sheet 102 may be provided with a hanging strap 118 in the form of a loop attached near the top edge of the sheet. This hanging strap 118 allows the load (secured by the wrapped sheet and load straps) to be hung. The load may be hung from a saddle on an horse, or hung from an ATV or other ground vehicle. Alternatively, the hanging strap may be used to hang the load on a hook, particularly a hook provided on a winch cable for hoisting the load. Other uses of a hanging strap may be implemented while remaining within the scope of inventive concepts disclosed and/or claimed herein.
A backpack strap system according to the present invention is well-suited for carrying oversize loads on foot, i.e., loads that may not fit readily into a backpack of a typical size. A wide variety of load sizes and/or shapes may be accommodated for carrying using the backpack strap system of the present invention. One type of oversized load that may commonly require carrying on foot results from hunting. The dead animal might be quite large (such as an elk or moose, for example), and transporting the carcass from the place where the kill was made may prove quite problematic. A strap system according to the present invention enables one hunter to carry a quarter of an adult elk (after gutting, cleaning, and quartering) with relative ease (FIG. 2), so that a hunter or hunting party may more readily transport the desired portions of the carcass out of the woods, to a camp, dwelling, shelter, or vehicle. The desirability of the stowable nature of the backpack strap system according to the present invention is apparent for this particular use. The stowed backpack strap system may be carried by a hunter stowed in his/her ordinary backpack, knapsack, fanny-pack, or other carrier, but then readily removed and deployed for use if a kill is made. Another oversize load for which the present invention is suitable is firewood, as shown in FIGS. 3A/3B and
Another preferred use for the present invention is for wilderness search and rescue and/or military operations. As shown in FIGS. 5A/5B, the backpack strap system according to the present invention may be employed to enable a single person to carry another person (if injured, wounded, or otherwise disabled, for example). As shown in FIGS. 5A/5B, the bottom edge of the sheet is passed through the injured person's legs with the top edge of the sheet at the person's shoulders and the back surface of sheet 102 against the person's torso, preferably the front of the person's torso. Vertical load straps 104/106 pass over the person's shoulders, are adjusted for length (if necessary), and are connected together. Horizontal load straps 108/110 may be wrapped around the person's torso, adjusted for length (if necessary), and connected together. The person thus secured may then be lifted and carried as previously disclosed herein: shoulder straps 112 enable a user to carry the person on the user's back (FIGS. 5A/5B); carrying straps 114/116 (not shown in
In an alternative embodiment shown in
An alternative embodiment of the present invention is shown in
Sheet 102 may be made from nylon or canvas or any other sufficiently strong flexible material, especially those typically used (or hereafter developed) for backpack construction. Other exemplary materials may include polypropylene or other plastics, Gortex®, and so forth. Similarly, load straps, carrying straps, hanging straps, and shoulder straps may be fabricated from nylon, canvas, leather, or other sufficiently strong flexible material. It may be desirable to use water-resistant or water-proof materials to facilitate cleaning, particularly if the backpack strap system will be used to carry animal carcasses when hunting. Instead of a continuous sheet 102, netting, webbing, or mesh may be equivalently employed.
The present invention has been set forth in the forms of its preferred and alternative embodiments. It is nevertheless intended that modifications to the disclosed backpack strap system for carrying loads of various sizes and/or shapes may be made without departing from inventive concepts disclosed and/or claimed herein.
Number | Name | Date | Kind |
---|---|---|---|
2407787 | Kernahan | Sep 1946 | A |
4335891 | Alley et al. | Jun 1982 | A |
4450991 | Gougeon | May 1984 | A |
4887823 | Hallett et al. | Dec 1989 | A |
5148956 | Funk | Sep 1992 | A |
5243724 | Barnes | Sep 1993 | A |
5579966 | Krumweide et al. | Dec 1996 | A |
5918785 | Irose | Jul 1999 | A |
6135334 | Seichter | Oct 2000 | A |
6347730 | Frederick | Feb 2002 | B1 |
6427886 | Essex | Aug 2002 | B1 |
6443339 | Higuchi | Sep 2002 | B1 |
6655564 | Zupan | Dec 2003 | B1 |