The present invention relates generally to hand-held striking tools, such as hammers and the like, that comprise a handle which is gripped by the user and a head that has at least one striking portion. More particularly, the present invention relates to such striking tools having features which are configured to engage fasteners or other objects for applying torsion thereto and which can have attachments, such as an axe head, attached thereto.
Hand-held striking tools have been in use for a very long time and are available in a wide variety of different configurations which are beneficially constructed and selected to accomplish one or more striking tasks. Such tools comprise a handle having a lower end and an upper end and a head that is either attached to or integral with the handle, typically at or near the upper end thereof. A gripping portion of the handle is sized and configured to be comfortably and safely held in the hand of the user so the user can swing the handle with his or her arm to direct the head of the tool to where the work is to be accomplished. The head of the striking tool is generally structured and arranged to accomplish the desired striking or other work objective. One common configuration for a striking tool is as a hammer with the head comprising at least one striking surface that is selected to contact a work object and achieve the desired work objective, which may be to drive the work object into another object, reshape the object, break the object into smaller pieces or like tasks. Another configuration for a striking tool is as an axe having at least one blade with a sharp edge that is driven against wood to shape or break the wood.
With regard to striking tools that are configured as a hammer, there are a wide variety of different types of hammers. Perhaps the most common type of hammer is the claw hammer, which is utilized by millions of professional and non-professional carpenters and other construction workers throughout the world. The head of the typical claw hammer has a striking portion at one end and a claw portion at the opposite end. The striking portion of the head has an outwardly disposed striking face that is directed at and makes contact with the object, such as the head of a nail or the like, for which the striking tool is being utilized to accomplish a particular work objective, such as driving the nail into a piece of wood. The striking face may be planar or have a slight curvature thereto.
Typically, the head of a striking tool is made out of hardened steel or other very hard metals, usually by a casting or forging process, to provide a striking portion, claw portion, pick portion or other portions which are sufficiently rigid and impact resistant to allow the user provide the necessary force with the striking tool to accomplish the desired work objective. More recently, striking tool heads have also been made out of lighter weight materials, such as titanium and titanium-based alloys, that are sufficiently strong enough to accomplish the desired striking objectives but reduce the weight of the portion of the tool that is swung by the user. In addition to being easier to carry and swing, the use of a lighter weight head increases the speed of the head as it arcs through its swing path to provide a greater amount applied force at the striking face or at the other desired striking portion of the tool. Compared to hardened steels and the like, titanium is a softer material. As a result, the impact force against the striking portion of the head can result in wear and distortion, particularly at or near the striking face.
The claw portion of the hammer typically comprises a pair of outwardly extending, divergently spaced apart claw members that are structured and arranged to be received under the head of a nail in a manner that allows the user of the claw hammer to apply leverage to the nail to pull or pry the nail out from where it was previously placed. The nail puller comprises a pair of nail engagement edges and an opening into the hammer head. The opening is designed such that the head of the nail being pulled will fit inside the opening so the nail engagement edges will engage the underside of the nail head. The user pulls the nail out of the object by laying the hammer head next to the nail head, sliding the nail engagement edges under the nail head and then rotating the hammer head to pull the nail out of the object.
The handle of a typical striking tool, including hammers, is sized and configured for the user to securely, safely and comfortably grip the striking tool and to maintain that grip as he or she swings the tool and contacts the head of the tool against an object. The handle of a hammer can be made out of wood, polymers and a variety of metals, including steel, aluminum, titanium and the like. Depending on the material utilized for the handle, the lower section thereof may be coated, covered, imbedded with or otherwise comprise a gripping material that provides the user with the ability to better grip the handle, swing the tool and absorb the contact with the object being hit.
Despite the various advantages of the prior art with regard to improved configurations for striking tools, there remains a need for further improvements to striking tools. Specifically, with regard to the striking member of the striking tool, there is a need to be able to separately replace the striking member of the striking tool. As well known by persons skilled in the art, often the striking member of the striking tool will prematurely wear or become damaged so it is no longer useable, such as the striking portion becoming misshaped, while the other portion of the tool is still useable. Presently, it is common that the entire striking tool is replaced. Accordingly, there is a continuing need for an improved striking tool. The present invention fulfills these needs, and provides other related advantages.
The present invention resides in a striking tool comprising an elongated handle having a first end and a second end. A head is attached to or formed integrally with the first end of the handle. The head defines a striking portion, a claw portion generally opposite the striking portion and a body portion therebetween.
The striking tool may comprise an elongated slot formed in the handle having a tapering diameter along a length thereof and defined by opposing walls configured to engage fasteners or other objects of varying sizes for applying torsion thereto.
The striking tool may also comprise an open-ended notch formed at the second end of the handle for engaging a fastener.
The striking tool may include an open-faced cavity formed in the body portion of the head for engaging a fastener or other object. An adjustment mechanism may be associated with the cavity for adjustably engaging fasteners or objects of varying sizes. The adjustment mechanism may comprise a bolt selectively threadedly received through the head and into the cavity.
A striking member may be removably attached to the striking portion of the head. A fastener may extend through a passageway of the head and into an aperture of the striking member. The striking member may comprise a striking face and an apron extending therefrom and defining a beveled inner surface that frictionally engages a surface of the striking portion of the head as the striking member is fastened to the striking portion of the head. The striking member may include a notch formed therein having opposing edges which define a nail puller.
The striking tool may have attachments removably attached thereto. For example, an axe head maybe removably attachable to the head of the striking tool.
Other features and advantages of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention.
The accompanying drawings illustrate the invention. In such drawings:
As shown in the accompanying drawings, for purposes of illustration, the present invention is directed to a striking tool, generally referred to by the reference number 10. The striking tool 10, as will be more fully described below, has many design aspects and features which make it an improvement over conventional hammers and render the striking tool 10 multi-purpose in nature.
With reference to
The striking tool 10 may be comprised of any suitable material, but in particularly preferred embodiments, the striking tool 10 is comprised of a titanium alloy which is lightweight and provides strength. The striking tool 10 may also be comprised of steel. It is also contemplated by the present invention that the handle 12 and head 18 be comprised of differing materials, or that component parts attachable to either the handle 12 or head 18 be comprised of different materials.
For example, the handle 12 is shown without a grip cover, although such a cover may be provided for the comfort of the user. Such a grip cover could comprise a sleeve or wrap comprised of leather, rubber or the like so as to enhance the gripability of the handle 12 and provide cushion to the user's hand. One or more openings or chambers 26 may be formed in the grip portion of the handle 12. These openings or chambers 26 could be formed in the handle 12 so as to lighten the overall weight of the striking tool 10, or could be filled with sand, pellets, polyurethane filling or the like before the handle 12 is wrapped, such as with a shrink wrap the sleeve or the like. Such fillings are intended to serve to mute vibrations to the handle 12 when the striking tool 10 strikes an object, thus lessening the vibrations to the user's hand and arm.
In one embodiment, the length of the handle 12, from the second end 16 thereof to the head 18, is sixteen inches. This length corresponds to commonly used distances in the construction industry, such as a typical distance between wall studs of a home or other building. Thus, either when framing such a house or building, or when attempting to find adjacent studs through a wall, the user of the striking tool 10 merely need to reference the length of the handle 12, eliminating the need to utilize a tape measure.
An elongated slot 28 is formed in the handle 12, above where would be disposed a grip. The slot 28 has a diameter sufficiently large between the internal walls thereof so as to engage a fastener or other object. In this manner, the fastener or other object can be inserted into the elongated slot 28 and the striking tool rotated so as to apply torsion thereto so as to loosen the fastener, rotate and/or remove the object from another object, such as a fastener from a wall or a nut from a bolt or the like. Preferably, the elongated slot 28 tapers along its length so as to be configured to engage fasteners or other objects of varying sizes, as illustrated in
With reference to
With reference now to
With reference now to
With reference to
In order to adjustably engage fasteners or objects of varying sizes, an adjustment mechanism may be associated with the cavity 54. The adjustment mechanism securely retains the fastener or other object within the cavity 54, such that torsion or other tension force could be applied to the fastener or object so as to loosen, remove, or break the fastener or object. In an embodiment, as illustrated, the adjustment member comprises a bolt 60 which is selectively threadedly received through in internally threaded aperture 62 of the head 18. A fastener 64, such as illustrated in
With reference to
The adjustment bolt 60 enables objects and fasteners of varying sizes to be inserted into the cavity 54 and tightened, loosened, removed, broken, or the like. Such could be used, for example, when removing she-bolts which are ties for medium and heavy concrete construction. Instead of needing to acquire and use a wrench, the she-bolt fastener can merely be inserted into the cavity, the adjustment bolt 60 adjusted as necessary, and then the striking tool 10 rotated to break the tension off of the she-bolt and slowly twist it out and remove it. Of course, other fasteners and objects could be tightened, loosened, removed, broken, etc. as needed and as can be accommodated by the cavity 54 and the adjustment bolt 60.
With particular reference now to
In the prior art, the claw portion of a hammer head has such as nail-pulling slot or gap, but the claw members typically extend from having a thickness of approximately a half an inch down to an eighth of an inch, and the claw members are elongated and curved. A disadvantage of such an arrangement is that when a large amount of pressure is applied to the claws, they may bend or break. Accordingly, the claw portion 22 of the head 18, and particularly the claw members 68 and 70, are of a thickness or width so as to resist bending or breaking. When the head 18 is comprised of a titanium alloy, which may be several times stronger than steel, a thicker half-inch profile of the claw members 68 and 70, along a length thereof, resist such bending and breaking and would be the equivalent of an inch and a half thickness of steel claw, which is not in existence.
Another difference in the claw members 68 and 70 as compared to prior art claw members, which typically form an arc along the length thereof to a relatively thin outer edge, is that the claw members 68 and 70 of the present invention have ends 74 and 76 which are formed at an acute angle with respect to the generally planar surface of the head 18. This enables the claw portion 22 to serve more as a crowbar or prybar when removing nails or other objects. The flat faces of the ends 74 and 76 of the claw members 68 and 70 can be placed upon the working surface, with the nail or other object inserted into the gap 72. The striking tool 10 can then be rotated, and the junction between the angled end 74 and 76 and the remainder of the claw members 68 and 70 act as a fulcrum for applying leverage to remove the nail or other object. This can be done as a regular pull, a side pull, a head pull or the like, and regardless of the direction of the torsion applied thereto, the configuration and thickness of the claw members 68 and 70 resist deformation and breakage even when a large amount of force is applied thereto. When the claw members 68 and 70 are forcibly inserted into an object, such as drywall or another such object, removal of the claw portion 22 from the object is also facilitated due to the configuration illustrated and described above.
With particular reference now to
In order to attach the striking member 78 to the striking portions 20 of the head 18, a fastener 80, such as the illustrated threaded bolt, is inserted through a passageway 82 of the head 18 and into a threaded aperture or recess 84. The attachment of the striking member 78 to the striking portion 22 of the head is shown in
With reference now to
The striking member 78 may include a notch 92 formed therein having opposing edges which define a nail puller. As illustrated in
With reference now to
With reference now to
In the illustrated case of an axe head 100, the axe head 100 includes a platform portion 102 which is slidable over the top planar surface of the head 18 of the striking tool 10. The platform is inserted onto the head 18 until aperture 104 of the platform 102 is aligned with aperture 62 such that a bolt or other fastener 106 can be threadedly inserted therethrough so as to fasten the axe head 100 to the head 18 of the striking tool 10. The bolt 106 may be the same as the adjusting bolt 60, or may be a bolt of having a shorter shank so as to merely fasten the axe head 100 to the head 18 and not extend excessively into cavity 54.
The axe head 100 may also include a tongue portion 108 which extends into the gap 72 of the claw portion 20, between the claw members 68 and 70 as the platform 102 is disposed over the planar portion of the head 18. This serves to further secure the axe head 100 to the head 18 of the striking tool 10, and prevent rotation, pivoting or other movement of the axe head 100 once it is attached to the head 18.
The axe head 100 includes an outer blade 110 for cutting objects. A notch 112 may also be formed in the blade portion so as to remove nails or other objects, as needed or desired.
Although an axe head 100 has been illustrated and described as being an attachment, it will be appreciated that other attachments could be attached to the striking tool 10 as desired or needed.
Although several embodiments have been described in detail for purposes of illustration, various modifications may be made without departing from the scope and spirit of the invention. Accordingly, the invention is not to be limited, except as by the appended claims.
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Number | Date | Country |
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20180063790 | Jun 2018 | KR |
Entry |
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Translation of KR-20180063790 (Year: 2018). |
Number | Date | Country | |
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20210323138 A1 | Oct 2021 | US |