JP4194943B2 - Hammer and hammerhead with front extractor - Google Patents

Description

  This application claims priority from US Provisional Patent Application No. 60 / 317,119, filed Sep. 6, 2001.

  The present invention relates to hammers and hammerheads that can be used to extract nails or other fasteners. More particularly, the present invention relates to a hammer or hammerhead having a front extractor.

  Conventional hammers are mostly either a straight tear claw type or a curved tear claw type. Both types are used for nail extraction. These nail hammers have a hammer or head in front of the hammer head and a nail removal pawl located on the opposite side of the hammer head from the hammer. Nail hammers are used in the construction industry for various housekeeping purposes and assembly and finishing operations, as well as stripping and other demolition operations. Of course, these applications are merely exemplary, and the hammer can be used in other applications for a variety of other purposes.

  One major limitation of conventional nail hammers is that they cannot be used to remove nails easily or quickly. This is largely due to the fact that this effect is substantially reduced once the nail is pulled to a distance of about 1 inch. In particular, this action is effectively reduced by moving the fulcrum away from the nail as it is extracted using a conventional nail hammer, and must also be applied by the hammer user to pull the nail further Power is effectively increased. Such disadvantages or limitations of conventional nail hammers are particularly problematic when the nail is designed to be difficult to remove. For example, a large nail, a glue-coated nail, or a ribbed shaft may be very difficult to extract and may require a large force by the user to extract.

  Another limitation of conventional nail hammers relates to the removal of relatively long nails or nails that have already been partially removed from the surface. Complete extraction is often impeded due to the geometric dimensions of conventional claws relative to the hammerhead strike. In addition, if the nail to be extracted is particularly long, extraction using conventional claws may cause the nail to be folded greatly, thereby further hindering complete extraction. To extract such a long nail, carpenters often use special nailing tools in addition to the hammer, or find a block of wood or other material and place it under the hammer head to raise the hammer. Therefore, it is necessary to make this action larger by making the fulcrum a position above the surface.

  Various solutions have been proposed in an attempt to overcome the above limitations of conventional nail hammers. In particular, U.S. Patent Nos. 6,279,876, 5,441,236, 5,249,776, 5,060,911, 4,998,996, 4,533,116. No. 4,422,620, 2,657,903, and 2,589,046 all improve the placement of the fulcrum or remove nails, especially long nails A nail hammer is disclosed that is adjustable to provide a suitable lever action for ease. In this regard, these proposed hammers provide a movable mechanism that extends outwardly from the top of the hammer so that the fulcrum is raised so that a long nail can be removed. However, the proposed solution is expensive due to the use of various moving parts and reduces the durability of the hammer. Furthermore, many proposed implementations require manual adjustment of the hammer to define the extended fulcrum, and using such a hammer is cumbersome, inconvenient and time consuming. is there. The movable extendable fulcrum also reduces the stability of the hammer and creates a great risk of injury to the user due to wear and breakage of the fulcrum mechanism inevitably caused by conventional hammering and tearing applications of the hammer.

  Other solutions have also been proposed in an attempt to solve the above-described limitations of conventional nail hammers. For example, U.S. Pat. Nos. 2,239,719, 1,535,685, 1,425,369, and 559,049 all extend from the surface with long nails and various lengths. A hammer having a plurality of claws adapted to engage and pull out from a nail is disclosed. However, such a proposed nail hammer has not yet been able to cope with the fact that this action is limited by the movement of the fulcrum away from the nail. These various proposed solutions have not addressed the inefficiencies associated with extraction by conventional means, but rather increased efficiency such as breakage, instability, time wastage, wear and possible injury. It creates another problem that is either bad or creates a variety of obstacles to the full functioning of a conventional hammer.

  Yet another limitation of conventional nail hammers is that due to the placement of the hammerhead nails, the user must reverse the grip and / or redirect the hammer to use the nails. This hinders work efficiency in situations where the nail must be driven and removed quickly and continuously. For example, more brittle nails such as aluminum, brass, or galvanized nails tend to bend when driven into harder wood or surfaces. Of course, these bent nails must be removed so that a replacement nail can be inserted instead. Each extraction and insertion of another replacement nail will invert the grip twice and / or redirect the nail hammer. U.S. Pat. No. 1,252,903 discloses a lace-shaped hatchet that has pawls located under the hammer pole on the same side as the hatchet. However, the lace-shaped hatchet of reference '903 cannot be used like a conventional hammer, because there is no claw on the opposite side of the hammer pole. In addition, the disclosed lace-shaped hatchet pawls do not provide sufficient leverage so that most nails cannot be removed efficiently or completely. In particular, long nails and nails extending from the surface at various lengths cannot be easily extracted using the disclosed lace-like hatchet. Furthermore, to extract most nails, the disclosed lace-like hatchet needs to be substantially repositioned to engage the nail with a means other than the nail, and to perform a complete extraction. It also anticipates the use of additional means such as wooden blocks. The lace-shaped hatchet disclosed in this respect has room for inefficiency similar to the inefficiency inherent in the problems associated with using conventional nail hammers as nippers in the proposed solution. There is.

  Finally, U.S. Pat. No. D438,082 has a provision for holding the nail in place so that the user can first drive the nail into the surface without holding the nail with the other hand. A decorative design is disclosed. It appears that the nail is held in place by a set screw that engages the nail shaft. However, the use of such holding means is cumbersome because when a user wants to use the holding means it is necessary to fix and loosen the set screw.

  Thus, in view of the above, there is still an unmet need for an improved hammer that circumvents the aforementioned limitations of conventional hammers. In particular, there is still an unmet need for an improved hammer that simplifies nail extraction, enables the hammer to be fully functional as a hammer, and provides additional functionality and features that enhance the usefulness of the hammer To do.

  In view of the above, one object of the present invention is to provide a hammer that simplifies the removal of a nail from a surface.

  Another object of the present invention is to provide a hammer that maintains the hammer fulcrum substantially constant so that the effort required to remove the nail does not increase as the nail is withdrawn.

  Yet another object of the present invention is to provide a hammer that allows the nail to be removed without reversing the grip or turning the hammer.

  Yet another object of the present invention is to provide a hammer that simplifies the extraction of long nails.

  Yet another object of the present invention is to provide a hammer that allows easy placement of a normal size wooden beam by being easily kinked.

  Yet another object of the present invention is to provide a hammer that simplifies the initial driving of a nail into a surface.

  Still another object of the present invention is to provide a hammer that increases the efficiency of removing a nail and improves its usefulness, while allowing the hammer to be used in the same manner as before.

  These and other objects and features are achieved by a hammer according to one embodiment, which hammer is secured to a handle having a first end and to the first end of the handle, the front of the hammer. A hammer head having a striking head provided with a striking surface to be defined; and an interface portion attached to the striking head and having at least one front extractor.

  In one embodiment, the interface portion comprises a groove extending through the at least one front extractor. In one embodiment, the at least one front extractor is a plurality of front extractors formed by at least one slot formed in the interface portion. In another embodiment, the slot has an angled shape such that the width of the slot decreases toward the interface portion.

  According to another embodiment of the present invention, the interface portion extends diagonally between the underside of the striking head and the handle and is attached thereto. Of course, in other embodiments, the interface portion may be cantilevered. The interface portion is attached to the striking head and / or handle by welding or other securing mechanism, or is integrally formed with the striking head and / or handle.

  In yet another embodiment, the at least one front extractor of the interface portion comprises a first front extractor that is cantilevered substantially parallel to the handle and spaced about 15/8 inch from the handle. I have. In addition, the hammer is cantilevered between the handle and the first front extractor, and is a second front extractor that is shorter than the first front extractor and spaced approximately 1 1/4 inch from the handle. A vessel may be further provided.

  According to yet another embodiment of the present invention, at least one slot is sized to support a nail head therein so that the nail is cantilevered substantially perpendicular to the striking surface. Alternatively, or in addition, the front extractor is magnetized so that the nail can be supported therein so that the nail is cantilevered substantially perpendicular to the striking surface.

  According to another aspect, the present invention provides a striking head provided with a handle having a first end and a striking surface fixed to the first end of the handle and defining a front face of the hammer. And an interface portion having a plurality of front extractors attached to at least one of the striking head and the handle and disposed in front of the hammer head toward the front of the hammer. ing. In one embodiment, the interface portion comprises a groove extending through the plurality of front extractors, the plurality of front extractors being formed by at least one slot formed in the interface portion.

  In another embodiment, the interface portion spans diagonally between the underside of the striking head and the handle. In this regard, the interface portion may be attached to the underside of the striking head and the handle. Alternatively, an interface portion having a plurality of front extractors is attached to the handle and cantilevered therefrom, or attached to the striking head and cantilevered therefrom.

  In one embodiment, the plurality of front extractors are formed by at least one slot in the interface portion, and the slot is provided with an angled shape so that the width of the slot decreases toward the interface portion. It has become. In other embodiments, the slot is sized to support the nail head therein. Alternatively, or in addition, a plurality of front extractors may be magnetized to support the nail therein.

  Another aspect of the present invention relates to a hammer head, which has a striking head having a striking surface defining a front face of the hammer head, and is attached to the striking head and a nail extraction proximal to the striking head. And an interface portion having a plurality of front extractors adapted to enable In one embodiment, the plurality of frontal extractors comprises a first frontal extractor that is cantilevered from the interface portion and a second frontal extractor that is cantilevered from the interface portion. .

  According to one embodiment, the first front extractor is longer than the second front extractor, and both the first front extractor and the second front extractor are substantially parallel to the striking surface. . The interface portion preferably comprises a groove extending through the first front extractor and the second front extractor formed by at least one slot formed in the interface portion.

  According to another embodiment, the slot is sized such that the nail head is supported therein so that the nail is cantilevered substantially perpendicular to the striking surface. Alternatively, or in addition, the front extractor may be magnetized.

  According to yet another aspect of the present invention, the hammer head is adapted to enable a striking head having a striking surface defining a front face of the hammer head and a nail that is cantilevered from the striking head. A first front extractor and a second front extractor adapted. In such an embodiment, the first front extractor is preferably longer than the second front extractor, both extractors being substantially parallel to the striking surface.

  According to one embodiment, the hammerhead has a groove extending through the first front extractor and the second front extractor and a slot between the first front extractor and the second front extractor. It has. The slot may be sized to hold the nail head therein and held in the groove and cantilevered substantially perpendicular to the striking surface. Alternatively, or in addition, the front extractor may be magnetized.

  According to yet another aspect of the present invention, a method is provided for extracting a nail from a surface, wherein the hammer strikes the hammer next to the nail and the hammer strike surface defining the front of the hammer attempts to extract the nail. Placing the nail in contact with the surface; engaging the nail with a first front extractor located proximal to the hammer strike surface toward the front of the hammer; Rotating to the center to partially extract the nail from the surface, releasing the nail from the first front extractor, and located between the first front extractor and the hammer handle toward the front of the hammer Engaging the nail with a second frontal extractor, and rotating the hammer handle about the striking surface to further extract the nail from the surface.

  According to another embodiment, such a method releases the nail from the second front extractor and a third disposed between the second front extractor and the hammer handle toward the front of the hammer. Engaging the nail to the front extractor and rotating the hammer handle about the striking surface to completely extract the nail from the surface.

  These and other advantages and features of the present invention will become apparent from the following detailed description of preferred embodiments of the present invention when considered in conjunction with the accompanying drawings.

  As described above, according to the present invention, it is possible to provide a hammer that simplifies extraction of a nail from a surface.

  It is also possible to provide a hammer that maintains the hammer fulcrum substantially constant so that the effort required to extract the nail does not increase as the nail is extracted.

  It is also possible to provide a hammer that allows the nail to be removed without reversing the grip or turning the hammer.

  It is also possible to provide a hammer that simplifies the extraction of long nails.

  Moreover, the hammer which enables it to arrange | position the wooden beam of a normal magnitude | size easily and appropriately can be provided by making it be easily twisted.

  It is also possible to provide a hammer that simplifies the initial driving of the nail into the surface.

  In addition, the hammer can be used in the same manner as before, while providing a hammer that increases the efficiency of removing the nail and improves its usefulness.

  As will be apparent to those of ordinary skill in the art, the hammer and hammerhead according to the present invention overcomes the previously mentioned drawbacks of conventional hammers. In particular, the present invention simplifies the extraction of nails and improves the distance that the user can reach better so that nails at higher positions can be extracted. In addition, the hammer and hammerhead according to one embodiment of the present invention also facilitate the insertion of the nail and allow the beam to rotate easily. In this regard, although the various drawings described below show a complete hammer with a handle that is integrally formed with the hammerhead, the present invention can be easily attached to a separate handle, and as a result. Obviously, it also includes a hammer head capable of forming a hammer. Accordingly, the various features of the present invention as described herein below are applicable to both hammers and hammerheads.

  FIG. 1 is a partial side view of a hammer 10 according to one embodiment of the present invention. The hammer 10 shown in the present invention and the following other embodiments is of a claw type that is generally used by carpenters, homeowners, etc., but the present invention is not limited to this and is not limited to this type of hammer. It should be noted that can be embodied as well.

  Referring again to FIG. 1, the hammer 10 of the illustrated embodiment includes a head 12 attached to the first end of the handle 14. The handle 14 of the hammer 10 is provided with a handle grip 16 (shown only partially) so that the user can easily handle the hammer 10. The head 12 of the hammer 10 includes a striking head 20 that extends substantially perpendicular to the handle 14. The striking head 20 has a striking surface 22 for driving a nail or a fixture at one end thereof. The head 12 of the hammer 10 also includes a conventional pawl 24 with a v-shaped groove for engaging and extracting the nail head. Providing the claw 24 allows the illustrated hammer 10 to be used in a conventional manner.

  The hammer 10 according to the illustrated embodiment is also provided with an interface portion 30 that extends diagonally between the underside of the striking head 20 and the front side of the handle 14 of the hammer 10. In the illustrated embodiment, a thick edge 31 is formed between the interface 30, the hammerhead 12, and the handle 14 as illustrated by the fact that the interface 30 is inclined. The interface unit 30 is provided with first, second, and third front extractors 32, 34, and 36, respectively. In this regard, the front extractors 32, 34, and 36 are formed in the interface portion 30 by cavities or slots 33, 35, and 37, respectively.

  The slots 33, 35 and 37 formed in the interface 30 are sized so that the nail heads or other fixture heads are engaged by the front extractors 32, 34 and 36 for extraction. It is preferable that In this regard, the surface 38 (shown in dotted lines) of the interface portion 30 defines a groove contact surface that limits the movement of the nail or other fixture to be extracted. In addition, the front extractors 32, 34, and 36 are arranged sequentially along the interface portion 30 so that nails or other fasteners protruding from surfaces such as walls or beams of different lengths can be easily removed. Yes. In addition, the front extractors 32, 34, and 36 are arranged in sequence so that this action is cumulative so that long nails or other fasteners can be easily removed.

  FIG. 2 shows a front view of the hammer 10 of FIG. 1, both of which are referenced herein for clarity. As shown, the interface portion 30 preferably does not exceed the hammer 10 impact head 20 so that the interface portion 30 does not interfere with the full functioning of the hammer 10 as a standard hammer. ing. However, in other embodiments and applications, the interface portion 30 of the present invention and the front extractor provided thereon may be slightly wider than the striking head 20. With the v-shaped surface indicating the boundary between the groove 40 and the front extractors 32, 34, and 36, the groove 40 with the surface 38 causes the front extractors 32, 34, and 36 to be shown as shown. It extends through.

  FIG. 3 shows a hammer 10 of an embodiment of the present invention in use to extract a nail 2 using a conventional nail 24 from a surface 6, which can be a wall, beam, or some other surface. The nail 2 can be extracted by rotating the hammer 10 in the direction of the arrow “A”. However, in the drawing, when the nail 2 is extracted using the conventional claw 24, the fulcrum C of the hammer 10 moves in the direction of the arrow "B" and moves away from the nail 2 as the hammer 10 rotates in the direction of the arrow A. . As already described, the distance between the fulcrum C and the nail 2 increases the effective stress center distance between the fulcrum C and the nail 2, and as a result, in the direction of the arrow A. The force required to rotate the hammer 10 can be increased.

  FIG. 4 shows the hammer 10 of an embodiment of the present invention in use for extracting the nail 2 from the surface 6 using a first front extractor 32 provided on the interface portion 30 of the hammer 10. . In this regard, the hammer 10 is arranged such that the striking surface 22 of the striking head 20 is disposed along the surface 6. The hammer 10 is operated so that the front extractor 32 is engaged with the head 4 of the nail 2. The hammer 10 is rotated in the direction of the arrow “D”, so that the hammer 10 rotates about the fulcrum “E”, whereby the nail 2 can be pulled out by being pulled by the head 4.

  As opposed to conventional nail extraction using the pawl 24 as described above with respect to FIG. 3, the fulcrum E shown in FIG. 4 remains substantially stationary with respect to the position of the nail 2. Therefore, the length of the stress center distance between the fulcrum E and the nail 2 remains constant. As a result, the force required to rotate the hammer 10 in the direction of arrow D does not increase as with conventional claws 24, so the user of the hammer 10 to remove nails and other fasteners. The labor and power required by is greatly reduced. If the nail 2 is long, the fulcrum E actually moves slightly and approaches the nail 2, so that the force required to rotate the hammer 10 as the nail 2 is extracted can be further reduced.

  This reduction in effort makes the hammer 10 useful in accordance with the present invention by minimizing the fatigue of end users, such as carpenters and picture craftsmen, who have to extract numerous nails and other fasteners on a daily basis. The characteristics are greatly improved. In addition, the hammer 10 of the present invention further allows for the removal of nails that would otherwise be removed using a conventional nail extractor.

  In addition, long nails or fixtures can be easily removed by sequentially placing the front extractors 32, 34, and 36 on the interface 30 of the hammer 10. In particular, when the nail 2 is particularly long or protrudes far away from the surface 6, it is easy to properly place and actuate the hammer 10 when the head 4 of the nail 2 engages the first front extractor 32. May not be achieved. In such a case, a second front extractor 34 disposed along the interface 30 can be used to accept the longer projecting nail. In the embodiment shown, the interface part 30 is further provided with a third front extractor 36 for receiving a longer projecting nail.

  In addition, since the front extractors 32, 34 and 36 are arranged in sequence on the interface part 30, the user can use the first front extractor 32 to partially extract the nail 2 from the surface 6, and then By using the second front extractor 34 and / or the third front extractor 36 so that the remaining portion of the nail 2 can be completely extracted, the extraction of the long nail is simplified. This eliminates the need to support the position of the hammerhead 12 using a wooden block as is conventionally done by carpenters in the field, and the need for complicated mechanisms as is conventionally done.

  In this regard, the above-described embodiments of the present invention provide a novel method for extracting a nail or other fixture from a surface. With particular reference to FIGS. 1, 2, and 4, the disclosed method has the hammer 10 next to the nail 2 and the striking surface 22 of the hammer 10 defining the front of the hammer 10 is removed from the nail 2. And placing it in contact with the surface 6 to be produced. The nail 2 is engaged using a first front extractor 32 located proximal to the striking surface 22 toward the front of the hammer 10. Then, as shown in FIG. 4, the handle 14 is rotated about the striking surface 2 in the direction of arrow D to partially extract the nail from the surface.

  The nail 2 is then released from the first front extractor 32 and engages a second front extractor 34 disposed between the first front extractor 32 and the handle 14 toward the front of the hammer 10. Is done. The handle 14 is again rotated about the striking surface 22 so that the nail 2 is further removed from the surface. Depending on the length of the nail 2, the above process is sufficient to extract the nail 2 completely from the surface 6. However, to the extent that the above process does not completely extract the nail, the nail 2 is released from the second front extractor 34 and is positioned between the second front extractor 34 and the handle 14 toward the front of the hammer 10. Engaged with the third front extractor 36. The handle 14 is again rotated about the striking surface 22 so that the nail 2 is completely removed from the surface 6.

  Further benefits of utilizing the hammer 10 in accordance with the present invention are also shown in FIGS. 5 and 6, which are used to extract the nail 3 from the vertical surface 7 using a conventional pawl 24 and front extractor 32, respectively. The hammer 10 in use is shown. If the nail 3 is embedded in the vertical surface 7, the ability of the conventional nail 24 to extract the nail 3 will be significantly reduced if the nail 3 and its head 5 are at a level that the user cannot reach. there is a possibility. In particular, as shown in FIG. 5, in order to extract the nail 3 using the conventional claws 24 of the hammer 10, the handle grip 16 of the hammer 10 must actually be raised to a position higher than the height of the nail 3 itself. Don't be. Therefore, it cannot be easily extracted unless the reach of the user is widened using a ladder or other lifting device.

  Conversely, as clearly shown in FIG. 6, the front extractors 32, 34, and 36 place the handle grip 16 of the hammer 10 at a sufficiently low height relative to the nail 3. As a result, the reach of the user's hand is effectively widened so that the head 5 of the nail 3 can be engaged. In this way, the present invention allows nails or other fasteners that would otherwise be out of reach to be removed using front extractors 32, 34, and 36.

  Hammer 10 can be manufactured in any conventional manner using steel and / or other suitable materials. In this regard, the interface portion 30 provided with the front extractor may be formed integrally with the hammerhead 12 and / or the handle 14. Otherwise, interface portion 30 may be manufactured separately from hammer 10 and then attached to hammerhead 12 and / or handle 14 by welding or any other suitable method for securely attaching it. In this regard, the interface portion and front extractor according to the present invention may be implemented as separate components that can be retrofitted onto existing conventional hammers. For example, the interface portion and the front extractor are mechanically fixed using a clamp and / or a fixture including bolts, screws, pins, and the like. Furthermore, although the interface portion 30 is attached to the hammerhead 12 and handle 14 of the hammer 10 in the illustrated embodiment, the interface portion 30 may be cantilevered in other embodiments.

  FIG. 7 is a partial side view of a hammer 110 according to another embodiment of the present invention. As shown, the hammer 110 is substantially similar to the hammer 10 of FIG. 1 described above. In this regard, the hammer 110 includes a head 112 attached to the first end of the handle 114 and a handle 114 provided with a handle grip 116 (shown only partially). The head 112 of the hammer 110 includes a striking head 120 extending vertically from the handle 114 and a conventional pawl 124, and the striking head 120 has a striking surface 122.

  The hammer 110 according to the illustrated embodiment also includes an interface portion 130 that extends diagonally between the underside of the striking head 120 and the front side of the handle 114 of the hammer 110. In this regard, in the illustrated embodiment, an opening 131 is formed between the interface portion 130 and the hammerhead 112 as illustrated by the fact that the interface portion 130 is inclined. The opening 131 serves to save manufacturing material and to allow application of weight and balance matters.

  Similar to the previously described embodiment, the interface section 130 is provided with first, second and third extractors 132, 134 and 136, respectively. In this regard, the front extractors 132, 134, and 136 are formed in the interface portion 130 by slots 133, 135, and 137, respectively, sized to engage a nail or other fixture head. . As already mentioned above, the surface 138 (shown in dotted lines) of the interface portion 130 restricts the movement of the nail or other fixture as it is withdrawn, groove contact surfaces 133, 135, and 137. Is defined. The hammer 110 can be utilized in substantially the same manner as the hammer 10 already described with respect to FIGS. Accordingly, further description of the hammer 110 and its operation is omitted to avoid repetition.

  FIG. 8 is a partial side view of a hammer 210 according to yet another embodiment of the present invention that is substantially similar to the hammer 110 of FIG. In this regard, the hammer 210 includes a head 212 that is attached to a first end of a handle 214 having a handle grip (shown only partially). The head 212 of the hammer 210 includes a striking head 220 having a striking surface 222 and a conventional claw 224.

  The hammer 210 also includes an interface portion 130 having an opening 231 that diagonally spans between the underside of the striking head 220 and the front side of the handle 214. Similar to the previously described embodiment, interface portion 230 includes first, second, and third front extractors 232 that can be used as described above to extract nails or other fasteners from the surface. 234 and 236 are provided, respectively. Front extractors 232, 234, and 236 are formed in interface portion 230 by slots 233, 235, and 237, respectively, and surface 238 defines a contact surface for a groove that extends through the slot.

  As shown by the drawing of FIG. 8, in this embodiment, the first slot 233 and the second slot of the hammer 210 are enlarged and have a substantially angled shape, resulting in a slot width. Becomes smaller toward the interface part. The expansion of the slots 233 and 235 allows the nail head to be easily positioned by the slots 233 and 235 compared to the slot of the previously described embodiment, so that the first front extractor 232 Alternatively, the nail head is simply engaged by the second front extractor 234. In particular, the slots 233 and 235 are angled so that the user of the hammer 210 makes the hammer 210 proximal to the head of the nail from which the slot corresponding to the desired front extractor is to be extracted. The nail head can be easily engaged by pulling the hammer 210 so that the nail head slides along the slanted surface of the slot with the extractor coupled to it. . In this way, the working efficiency can be further improved by easily removing the nail quickly.

  Of course, although FIGS. 1-8 described above illustrate embodiments of the present invention with three frontal extractors, other embodiments of the present invention may have a different number of extractors. As already described above and shown in these illustrated embodiments, the interface portion can be attached to the striking head and handle. However, as will be described in more detail below, other embodiments of the invention may allow the interface portion to be cantilevered and attached to the striking head or handle.

  FIG. 9 is a partial side view of a hammer 310 according to yet another embodiment of the present invention. As shown, the hammer 310 includes a head 312 that is attached to a first end of a handle 314 having a handle grip 316 (shown only partially). The head 312 of the hammer 310 includes a striking head 320 having a striking surface 322 and a conventional claw 324. Hammer 310 also has an interface portion having first, second, and third front extractors 332, 334, and 336, respectively, that can be used to extract nails or other fasteners from the surface as described above. 330 is also provided. In this regard, front extractors 332, 334, and 336 are formed in interface portion 330 by slots 333, 335, and 337, respectively, and surface 338 defines a contact surface for a groove that extends through the slot. Yes.

  Contrary to the implementation described above, the interface portion 330 of the hammer 310 is cantilevered and attached to the handle 314 of the hammer 310. In the illustrated embodiment, the interface portion 330 and the front extractor provided thereon can be formed together with the handle 314 of the hammer 310. This is particularly advantageous in configurations where the hammerhead is formed as a separate member from the handle and then attached together to provide a finished hammer. Again, it should be noted that although three frontal extractors are illustrated in this embodiment, a different number of extractors may be provided in other embodiments.

  FIG. 10 is a partial side view of a hammer 410 according to still another embodiment of the present invention, and FIG. 11 is a front view thereof. Like a conventional nail hammer, the hammer 410 includes a head 412 that is attached to the first end of the handle 414, and the handle 414 is provided with a handle grip (shown only partially). The head 412 of the hammer 410 includes a striking head 420 and a conventional pawl 424 that extends vertically from the handle 414 and has a striking surface 422.

  Further, the hammer 410 is provided with an interface portion 430 attached to the striking head 420. Contrary to the embodiment described above with respect to FIGS. 1-9, the interface portion 430 of the hammer 410 is cantilevered from the striking head 420 and is not attached to the handle 414. The interface unit 430 is provided with first and second front extractors 432 and 433, respectively. The first front extractor 432 is formed in the interface portion 430 by a slot 433 that is sized to allow the head of a nail or other fixture to engage for extraction. A second front extractor 434 is also formed in the interface portion 430. A surface 438 (shown in dotted lines) of the interface portion 430 extends through the first front extractor 432 and the second front extractor 434 so that it can extract movements of nails or other extractors. The contact surface of the groove 440 shown in FIG.

  FIG. 12 is a side view of the hammer of FIG. 10 in use to extract the nail 403 from the vertical surface 407 using the front extractor of the hammer 410. In particular, as shown, the head 405 of the nail 403 is engaged by a first front extractor 432 such that the nail 403 is withdrawn from the surface 407 when the hammer 410 is rotated in the direction of arrow “G”. Yes. If the nail protrudes further from the surface 407, or can only be partially removed using the first front extractor 432, the second front extractor 407 can be used. For example, a nail 403 ′ that protrudes further from the surface 407 can be simplified by engaging the second front extractor 434 with the nail head 405 ′ as shown and rotating the hammer in the direction of arrow G. Can be removed.

  Referring again to FIG. 10, in the illustrated embodiment of the invention, the first front extractor 432 and the second front extractor 434 both extend outwardly and are substantially attached to the handle 414 of the hammer 410. Parallel. In the preferred embodiment, as shown, the second front extractor 434 does not extend beyond the first front extractor 432. This advantageously uses the hammer 410 to engage a wooden beam during assembly and carpentry, by engaging the beam between the handle 414 of the hammer 410 and one of the front extractors 432 and 434. Can be twisted.

  In particular, as shown in FIG. 10, the hammer 410 and the first front extractor 432 provided on it are associated with a wooden beam schematically indicated by P1 marked with a dotted rectangle with a width dimension of w1. Dimensions can be matched. By rotating the hammer 410 in the direction of arrow “F”, the schematically illustrated wooden beam P1 is simply rotated by the twisting action of the first front extractor 432 and the handle 414 of the hammer 410. Similarly, the second front extractor 434 can be dimensioned to engage a wooden beam schematically indicated by P2 marked with a dotted rectangle having a width dimension w2 smaller than w1. Again, by rotating the hammer 410 in the direction of arrow “F”, the schematically illustrated wooden beam P2 is simply rotated by the twisting action of the second front extractor 434 and the handle 414 of the hammer 410. .

  In view of the above, the handle 414 of the hammer 410 and the first extractor 432 engage and engage a conventional “2 inch wide 4 inch” wooden beam spaced approximately 15/8 inch apart. You can The handle 414 of the hammer 410 and the second front extractor 434 can be adapted to engage a commonly used wooden beam spaced approximately 11/4 inches from each other. Of course, it should be noted that the above dimensions are merely given as an example of adding additional utility and value to the hammer 410 compared to a conventional hammer.

  Although two frontal extractors 432 and 434 are shown with respect to the embodiment of FIGS. 10-12, other embodiments of the present invention include a different number of frontal extractors, such as one frontal extractor or more than two frontal extractors. It should be noted that a front extractor may be provided. Further, the front extractors may be of different lengths or the same, may be parallel (as shown) or angled with respect to the handle 414. Hammer 410 can be manufactured by any conventional method. In this regard, interface portion 430 and front extractors 432 and 434 may be integrally formed with hammerhead 412. Alternatively, the interface portion 430 and front extractors 432 and 434 may be manufactured separately from the hammer 410 and the hammerhead 412 attached by other methods or mechanisms for subsequent welding or secure attachment.

  Further, although the front extractors of FIGS. 10-12 are illustrated and described as projecting from an interface portion 430 having a substantially thickness dimension, in this embodiment the interface portions are front extractors 432 and 434. It should be noted that it helps to secure the underside of the striking head 420. As a result, in other embodiments, the interface portion 430 may be very thin or otherwise omitted so that the front extractors 432 and / or 434 essentially protrude directly from the striking head 420 itself. However, an interface 430 is provided to control the bending of the nail during extraction, or to extract a long nail that would be difficult if the extractor was placed near the strike head 420. It is preferable to do this.

  FIG. 13 is a partial side view of a hammer 510 according to still another embodiment of the present invention. As can be seen, the hammer 510 is similar to the hammer 410 described above with respect to FIGS. The hammer 510 includes a head 512 that is attached to the first end of the handle 514, the head 512 of the hammer 510 having a striking head 520 that extends substantially perpendicular to the handle 514, and a conventional pawl 524. The striking head 520 has a striking surface 522. In addition, the hammer 510 has an interface portion 530 provided with first and second front extractors 532 and 534, respectively, and a groove contact surface that limits the movement of the nail or other fixture as it is extracted. A defining surface 538 (indicated by a dotted line) is provided.

  In the illustrated embodiment, the slot 533 forming the first front extractor 532 in the interface portion 530 is sized to engage the head 505 of the nail 503 so that the nail 503 is illustrated. 13 in a substantially cantilever position. This allows the user to strike the nail 503 first on the surface simply by swinging the hammer 510 and striking the surface having the apex of the nail 503 without having to manually support or position the nail 503 against the surface. Is possible. The user can then simply release the nail from the slot 533 and the user can then continue driving the nail into the surface by using the hammer 510 as a striking tool for conventional applications. Slot 533 may be between 1/16 and 1/8 inch wide to be engageable with the most commonly used nail heads. Preferably, the slot 533 has a width of about 3/32 inches and is sized to taper slightly toward the interface portion 530 so that it can be engaged with nail heads of various thicknesses.

  Instead of, or in addition to, the method described above for retaining the nail 503 in the slot 533, the interface portion 530, the first front extractor 532, and / or the second front extractor 534 can be magnetized. It can be supported in a substantially cantilevered position as shown. Since most of the nails and fasteners are made of steel, they can be supported in place by the application of a magnetic force. Of course, such features can equally easily be incorporated into the embodiments of the invention described above with respect to FIGS.

  As already mentioned, the hammers and hammerheads according to the invention can be manufactured in any conventional manner using steel and / or other suitable materials. The described interface with a front extractor may be formed integrally with the hammerhead and / or handle, or may be manufactured separately and later attached by welding or some other suitable usage. As a result, the interface part and the front extractor according to the present invention can be realized as separate components retrofitted to an existing conventional hammer.

  While various embodiments according to the invention have been illustrated and described, it will be appreciated that the invention is not limited thereto. The present invention can be changed, modified, and further applied by those skilled in the art. Furthermore, as mentioned at the outset, the present invention can also be easily applied to a hammer head which is later assembled with the handle into a complete hammer. Accordingly, the present invention is not limited to the details shown and described, but includes all such changes and modifications.

1 is a partial side view of a hammer according to one embodiment of the present invention. FIG. It is a front view of the hammer of FIG. FIG. 2 is a partial side view of the hammer of FIG. 1 in use for extracting a nail using a conventional nail provided thereon. FIG. 2 is a partial side view of the hammer of FIG. 1 in use for extracting a nail using a front extractor provided thereon. FIG. 2 is a side view of the hammer of FIG. 1 in use for extracting a nail on a vertical surface using a conventional nail. FIG. 2 is a side view of the hammer of FIG. 1 in use to extract a nail on a vertical surface using a hammer front extractor according to one embodiment of the present invention. FIG. 6 is a partial side view of a hammer according to another embodiment of the present invention. FIG. 6 is a partial side view of a hammer according to yet another embodiment of the present invention. FIG. 6 is a partial side view of a hammer according to yet another embodiment of the present invention. FIG. 6 is a partial side view of a hammer according to yet another embodiment of the present invention. It is a front view of the hammer of FIG. FIG. 11 is a side view of the hammer of FIG. 10 in use to extract a nail on a vertical surface using a front extractor. FIG. 6 is a partial side view of a hammer according to yet another embodiment of the present invention.

Claims (39)

A hammer,
A handle having a first end;
A hammerhead having a first fixed to an end, the striking head striking surface that defines a front of the hammer is found provided in the handle,
A first frontal extractor attached to the distal end of the striking head adjacent to the striking surface and cantilevered substantially parallel to the handle; the handle and the first frontal extractor; An interface portion having a second front extractor that is cantilevered between
A hammer characterized by comprising.   The interface includes a groove extending through the first front extractor and the second front extractor;
  The at least one of the first front extractor and the second front extractor is formed by at least one slot formed in the interface portion. hammer.   The hammer according to claim 2, wherein the at least one slot has an angled shape, and the width of the slot becomes narrower toward the interface portion.   The interface portion spans diagonally between the underside of the striking head and the handle,
  The hammer according to claim 1, wherein the hammer is attached to at least one of the striking head and the handle.   The hammer according to claim 1, wherein the interface unit is integrally formed with the striking head and the handle.   The hammer of claim 1, wherein the first extractor is longer than the second extractor.   The first front extractor is spaced approximately 1 and 5/8 inches from the handle;
  The hammer of claim 1, wherein the second front extractor is spaced approximately 1 and 1/4 inches from the handle.   The at least one slot is sized to support a nail head therein so that the nail is cantilevered substantially perpendicular to the striking surface. Item 4. The hammer according to item 3.   9. A hammer according to claim 8, wherein the at least one slot is about 1/16 to 1/8 inch wide, preferably about 3/32 inch wide.   The hammer according to claim 8, wherein the slot is tapered so that the width of the slot becomes narrower toward the interface portion.   At least one of the first front extractor and the second front extractor is magnetized to support the nail therein and the nail is cantilevered substantially perpendicular to the striking surface. The hammer according to claim 1, wherein the hammer is configured as described above.   The hammer of claim 1, wherein the hammerhead also comprises a conventional claw disposed on the opposite side of the striking head. A hammerhead,
A striking head having a striking surface defining a front face of the hammerhead;
An interface portion having a plurality of frontal extractors attached to the distal end of the striking head and adapted to allow removal of a nail proximal to the striking head;
With
The plurality of front surface extractors are cantilevered from the interface portion and are cantilevered substantially parallel to the striking surface, and cantilevered from the interface portion and substantially to the striking surface And a second front extractor provided so as to be located on the opposite side of the striking surface from the first front extractor .   The hammerhead of claim 13, wherein the first front extractor is longer than the second front extractor.   The first front extractor and the second front extractor are formed by at least one slot formed in the interface part,
  The hammerhead of claim 13, wherein the interface portion includes a groove extending through the first front extractor and the second front extractor.   The at least one slot is sized to support a nail head therein so that the nail is cantilevered substantially perpendicular to the striking surface and about 1/16 The hammerhead according to claim 15, wherein the slot has a width of 1/8 inch and is tapered so that the width of the slot becomes narrower toward the interface portion.   At least one of the first front extractor and the second front extractor is magnetized to support the nail therein, the nail being cantilevered substantially perpendicular to the striking surface; The hammerhead according to claim 13, wherein the hammerhead is configured as described above.   The hammerhead of claim 13, further comprising a conventional claw disposed on the opposite side of the striking head. A hammerhead,
Mounting et al is to handle, and striking hammer head that having a striking surface that defines the front of before Symbol hammer head,
A first front extractor that is cantilevered from the impact head at a distal end of the impact head; and a second front extractor provided between the first front extractor and the handle ;
Equipped with a,
The hammer head according to claim 1, wherein the first front extractor and the second front extractor are substantially parallel to the striking surface and are adapted to allow nail extraction.   The hammerhead of claim 19, wherein the first front extractor is longer than the second front extractor.   The hammerhead of claim 19, further comprising a groove extending through the first front extractor and the second front extractor.   The hammerhead of claim 21, wherein a slot is provided between the first front extractor and the second front extractor.   The slot is about 1/16 to 1/8 inch wide to hold the nail head therein, and the nail is held in the groove and substantially perpendicular to the striking surface. The hammerhead of claim 22, wherein the hammerhead is cantilevered.   24. A hammerhead according to claim 23, wherein the slot is tapered such that the width of the slot decreases toward the striking head.   At least one of the first front extractor and the second front extractor is magnetized so that a nail is held in the groove and cantilevered substantially perpendicular to the striking surface. The hammerhead according to claim 21, characterized in that   The hammerhead according to claim 19, wherein the first front extractor and the second front extractor are formed integrally with the striking head of the hammerhead.   The hammerhead of claim 19, further comprising a conventional claw disposed on an opposite side of the striking head. A hammer,
A handle having a first end;
A hammerhead having a first fixed to an end, the striking head striking surface that defines a front of the hammer is found provided in the handle,
A cantilever mounted on at least one of the handle and a distal end of the striking head adjacent to the striking surface and disposed proximate to the hammer head toward the front of the hammer An interface portion having a first front extractor and a second front extractor;
With
The hammer, wherein the second front extractor is cantilevered between the handle and the first front extractor.   29. The hammer of claim 28, wherein the interface portion comprises a groove extending through the first front extractor and the second front extractor.   The hammer according to claim 28, wherein the first front extractor and the second front extractor are formed by at least one slot formed in the interface portion.   29. The interface according to claim 28, wherein the interface portion is diagonally straddled between the underside of the striking head and the handle, and is attached to the underside of the striking head and the handle. hammer.   29. The hammer of claim 28, wherein the interface portion having the first front extractor and the second front extractor is attached to the handle and cantilevered therefrom.   29. A hammer according to claim 28, wherein the interface portion having the first front extractor and the second front extractor is attached to the striking head and cantilevered therefrom.   34. A hammer according to claim 33, wherein at least one of the front extractors is cantilevered substantially parallel to the handle.   The at least one slot has an angled shape, and the width of the slot becomes narrower toward the interface part, and the size of the nail is supported by the nail. 31. A hammer according to claim 30, wherein the hammer is cantilevered substantially perpendicular to the striking surface.   At least one of the first front extractor and the second front extractor is magnetized to support the nail, and the nail is cantilevered substantially perpendicular to the striking surface. 29. A hammer according to claim 28, characterized in that:   A method of removing a nail from a surface,
  Placing the hammer next to the nail so that the striking surface of the hammer defining the front of the hammer contacts the surface from which the nail is to be removed;
  Engaging the nail with a first front extractor located proximal to the hammer striking surface toward the front of the hammer;
  Rotating the hammer handle around the striking surface and partially extracting the nail from the surface;
  Releasing the nail from the first front extractor;
  Engaging a nail with a second frontal extractor disposed between the first frontal extractor and the handle of the hammer toward the front of the hammer;
  Rotating the handle of the hammer around the striking surface and further extracting the nail from the surface;
  Including the method.   38. The method of claim 37, wherein the step of engaging the nail with a second frontal extractor and rotating the handle of the hammer about the striking surface completely removes the nail from the surface.   Releasing the nail from the second front extractor;
  Engaging a nail with a third front extractor disposed between the second front extractor and the hammer handle toward the front of the hammer;
  Rotating the hammer handle around the striking surface to further extract the nail from the surface;
  38. The method of claim 37, further comprising:

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