Patent Application
20110023237
This present invention relates, generally, to hand tools and methods for using the same. More specifically, the present invention relates to a multi-purpose hand tool usable for a variety of tasks, such as manipulating barbed wire and other elongate members usable in the construction of fences and other barricade systems.
The drawings contained herein exemplify a preferred embodiment of the claimed invention. It should be noted that the invention is not limited to the embodiment shown. The embodiment shown is purely an example, and the invention is capable of variations of said embodiment. In the drawings:
The depicted embodiment of the tool 10 is shown having a head 12 with a striking surface 14, usable to drive nails, posts, dowels, or similar items, to shape deformable objects, to break frangible objects, and other similar tasks, facilitated by the weight and density of the head 12. For example, in an embodiment, the head 12 can be a generally solid member, formed from steel or a similar member. The head 12 is further shown having a claw 16 disposed opposite the striking surface 14. The claw 16 is shown having two prongs separated by a generally V-shaped slot, however other shapes and configurations known in the art are also usable. The claw 16 is usable for pulling and/or removing nails, some varieties of screws, staples, and the like through use of the shaft 22 of the tool 10 as a lever arm, facilitated by the length and curvature of the claw 16. The head 12 is further shown having a generally semi-circular loop 18 attached thereto and/or integral therewith. In various embodiments, the loop can be integral with the head 12, welded or glued thereto, or attached to the head 12 in any other manner known in the art. In an embodiment of the invention, the loop 18 can be sized for engagement with a T-post or a similar member of a fence or barricade, and used to pull, straighten, and/or remove such a member. The loop 18 is also usable a hanger for the tool 10 when not in use, such as by placing the loop 18 over a nail, hook, or similar object. The tool 10 can also be hung from a tool belt, wearable hook, strap, or the like to facilitate carrying of the tool. The loop 18 is also usable to provide additional leverage when pulling a nail or similar object.
While conventional hammers typically provide a curved claw that extends to a curved portion at the top of the hammer head to define a fulcrum point, the loop 18 provides a different path for the head 12 to roll while pulling a nail in a single motion, due to the fact that the loop 18 extends farther beyond the top of the tool 10 than the head of a conventional hammer. The extra distance provided by loop 18 increases the distance between the fulcrum point and the nail being pulled, resulting in a mechanical advantage when compared to conventional hammer heads, because less movement of the handle is required to generate the same displacement of the claw 16 and the nail being pulled.
Additionally, the extension provided by the loop 18 allows the claw 16 to remain in pulling contact with the nail for a greater distance, which is of great use when pulling a longer nail or similar item. Smaller conventional hammerheads begin to lose vertical pulling power when pulling longer nails. Thus, the loop 18 of the tool 10 enables the pulling of nails of substantially any length with more ease and accuracy. The loop 18 can also be used in conjunction with the handle for pulling a “come-a-long” cable attached to a hook.
The head 12 is shown mounted on an elongate member 22. The elongate member 22 is depicted as a shaft with a first end and a second end, usable as a handle and to provide leverage for numerous purposes. The method of attachment between the head 12 and the handle 22 can include any manner of welding, integral construction, use of adhesives, screws, bolts, nails, or other fasteners, or any other method of attachment known in the art.
The ring 26 is axially movable along and rotatable about the elongate member 22. A notch 31 in the ring 26 enables the wire 34 to be placed between the ring 26 and the elongate member 22. The notch 31 further enables the ring 26 to be removed from the elongate member 22. Specifically, the elongate member 22 is shown having a depressed region 23 formed thereon. The notch 31 of the ring 26 and the depressed region 23 of the elongate member 22 are sized such that when the notch 31 is aligned with the depressed region 23, the depressed region 23 may pass through the notch 31 such that the ring 26 can be selectively removed or associated with the elongate member 22. In further embodiments of the disclosure, the ring 26 and/or the elongate member 22 can be magnetized to facilitate retention of the ring 26 in a generally stationary orientation when not in use.
While the head 12 of the tool ultimately limits axial movement of the ring 26, the elongate member 22 is also shown having a protrusion 24 formed thereon. The protrusion 24 serves as a ring holder, further limiting the axial movement of the ring 26. In an embodiment, the notch 31 and protrusion 24 can be sized to permit the ring 26 to be passed over the notch 31 when the notch 31 is aligned with the protrusion 24. When the notch 31 is not aligned with the protrusion 24, the protrusion 24 will interfere with axial movement of the ring 26, such that the ring 26 remains within a space 36 defined between the protrusion 24 and the head 12, thereby preventing the ring 26 from interfering with a user's hand while manipulating the tool 10. It should be understood that the elongate member 22 can include any number of protrusions, positioned at any point thereon. The elongate member 22 is also shown having a stopper 28 formed thereon, having a generally conical shape. The stopper 28 also serves to limit movement of the ring 26 along the elongate member 22. Use of the ring 26, stopper 28, and elongate member 22 as a wire-stretching tool is described below.
At the end of the elongate handle 22 a pry bar 32 is shown, which includes a generally wedge-shaped member, having a slot 38 therein to define two prongs. The wedge shape of the pry bar 32 can narrow to a generally flat face, enabling the pry bar 32 to be forced between objects. The depicted pry bar 32 is shown having side walls 33 surrounding a depressed region formed at the end of the elongate member 22, further enabling the pry bar 32 to be used to engage and stretch a length of barbed wire or a similar flexible object by engaging a barb or other enlarged region between the prongs.
The tool 10 as described herein provides a particular advantage in its compact design, its light weight, and its ability to perform various and multiple functions. Embodiments of the multi-purpose tool 10 are usable for many tasks, such as erecting wire fences and similar barricade systems. In one aspect, the multi-purpose tool 10 as described herein can be used to tension flexible members of a fence, such as lengths of barbed wire 34, chain links, or the like. Small gauge wire used in fencing, especially barbed wire 34, can injure the hands of an individual attempting to tension the wire by hand, even through protective gloves. In one aspect, the multi-purpose tool 10 can be used to tension fence wire, which prevents these injuries.
To use the multi-purpose tool 10 in this capacity, the ring 26 can be placed axially below the protrusion 24, as shown in
The multi-purpose tool 10 as described herein can be used as a conventional hammer. As described above, the ring 26 can be placed in the small space 36 above the protrusion 24 by aligning the notch 31 with the protrusion 24, to prevent the ring 26 from interfering with use of the tool 10. Alternatively, the ring 26 can be removed by aligning the notch 31 with the depressed region 23 of the elongate member 22. Once the ring 26 is secured or removed, the tool 10 can be held by the elongate member 22 and swung such that the face 14 strikes a desired object, facilitated by the weight of the head 12.
The claw 16 is usable to pull nails and similar objects by wedging the prongs of the claw 16 beneath the nail such that the head of the nail engages the slot between the prongs of the claw 16. The claw 16 is also usable to pry objects apart due to its generally wedge-shaped profile, and to impact objects in the manner of a pick.
The pry bar 32 similarly has a wedge shape, allowing it to be forced between objects. The elongate member 22 is usable as a handle, and provides leverage for prying such objects apart. The slot 30 of the pry bar 32 is also usable to remove nails and similar objects, in the manner described above.
Embodiments of the tool 10 are also usable to pull U-shaped nails and staples. Such fasteners are often hammered securely into place, such as when installing a wire fence. Typically, the prongs of a conventional hammer claw are too wide to insert beneath a staple or a U-shaped nail. The slot 38 of the pry bar 32 can define two prongs 33 that are more narrow than those of a conventional hammer claw, and can thus be used to pull U-shaped nails, staples, and similar fasteners.
As illustrated in
The loop 18, as previously described, can be used to provide the tool 10 with additional leverage for pulling longer nails. The position, size, and configuration of the loop 18 can determine how much additional leverage is applied, and the length of nails that can be pulled. In use, the claw 16 can be engaged with a nail, as described above, by inserting the nail head between the prongs of the claw 16. Then the elongate member 22 can be pushed or pulled in order to pull the nail. The additional curvature of loop 18 increases the distance between the nail being pulled and the fulcrum of the tool 10, increasing the leverage applied to the claw 16, such that less movement of the elongate member 22 is required to effect a certain displacement of the claw 16 and nail.
In addition to advantages as previously described relating to increased leverage and nail pulling power, the loop 18 is usable to catch hooks, such as when extending a “come-a-long” cable. During such a task, the tool 10 can then be gripped by the elongate member 22 and pulled. Use of the tool 10 in this manner can avoid injuries and overcome the general difficulties inherent when gripping and pulling cables. The loop 18 can also be used to hang the tool 10 from a belt, hook, or similar protruding member.
Once a barbed wire fence, for example, has been erected, each length of wire 34 must be provided with a desired tension. This tension is important for the integrity of the fence. Over time, the weight of the wire itself and other forces, such as those imparted by the wind, animals, humans, or various objects contacting the fence can stretch the wires and reduce the tension therein. The tool 10 is usable as a fence tightener to reestablish the desired tension in the fence wire. Specifically, the slot 30 of the pry bar 32 can be positioned to accept a length of wire 34 that is secured at both ends. The tool 10 can then be rotated about the elongate member 22. To the extent there is slack in the wire 34, the wire will begin to wrap around the end of the pry bar 32, and the slack in the wire 34 will be removed.
In one embodiment, a portion of, or the entire elongate member 22, the ring 26, or combinations thereof, can be formed from a magnetic material. The magnetic material can be used to pick up nails and other metallic objects that have been dropped out of view, such as in tall grass or into cracks or other separations in cement.
In an embodiment, the pry bar 32 of the tool 10 can be configured such that the wedge portion can interact with a jack. The elongate member 22 can be used to provide leverage for the tool 10 to be used as a jack handle. The pry bar 32 can be engaged with the jack and twisted or pushed to operate the jack. In one embodiment, the slot 30 of the pry bar 32 can engage a member within the jack, such that rotating the tool 10 can operate the jack. In another embodiment, the tool 10 can engage a portion of the jack and be moved vertically to operate the jack.
Embodiments of the tool 10 are also usable as a tie down handle. Tie downs are used in a number of fields, and typically include a long shaft for insertion into the ground with a loop, hole or other member disposed above for tying down objects such as tents, fences, canopies, trees, airplanes, and other similar objects. In use, tie downs are typically twisted into the ground, and the tool 10, in one embodiment, can be configured to act as a handle to aid in twisting the tie down. For example, the top of the tie down can be configured to receive the pry bar 32, such that the tool 10 can be rotated about the axis of the elongate member 22 to twist the tie down into the ground. In another embodiment, the pry bar 32 can be slid through an opening in the tie down, such that the elongate member 22 of the tool 10 is perpendicular to the shaft of the tie down. A user can then grip the pry bar 32 on one side, and the loop 18 or head 12 on the other side, and twist the tool 10 to screw the tie down into the ground.
Other uses features, and modifications to the specific embodiments of the multi-purpose tool described herein can also be practiced, as would be understood in the art. Embodiments of the present invention thereby provide a compact and portable tool usable to perform a variety of tasks with greater efficacy than conventional counterparts.
The present application is a continuation-in-part application, claiming priority to the co-pending United States patent application entitled “Multi-Purpose Hand Held Tool” and bearing Ser. No. 12/011,688, filed Jan. 29, 2008, the entirety of which is incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 12011688 | Jan 2008 | US |
| Child | 12925007 | US |
