JP4198395B2 - Hammer with nails - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hammer with a nail punch that is used when the head of a nail is struck and when the nail that has been driven is pulled out, and in particular, in consideration of safety, the nail extraction part does not protrude outward. It relates to hammers with nails.
[0002]
[Prior art]
Conventionally, in a nail extraction operation, a nail extraction integrated with a hammer is often used in addition to a dedicated hand tool.
In this case, the nail extraction part of the hammer with a nail extraction used has its tip protruding toward the outside of the striking part.
[0003]
[Problems to be solved by the invention]
There are many other tools, such as cones, scissors, screwdrivers, scales, etc., and the conventional hammer with a nail punch has a wider width than other tools because the nail punching part protrudes outward. There is a problem that it is often inconvenient to store and carry tools.
Also, when carrying around the waist, the chance to drop the hammer by hooking the protruding tip to something increases. It is especially dangerous when working at heights.
Furthermore, when pulling out a nail from the surface of timber, the tip of the nail extraction part should be thin, but if it is too thin, the tip will point outwards, which will scratch the building materials and cause damage to people. There was also great anxiety.
[0004]
In order to solve the above problems, the object of the present invention is to make a nail extraction part integrated with a hammer in a recess provided in the center of the head of the hitting part, which is safe and convenient for carrying and storage. Is to provide a nailed hammer.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is characterized in that a striking portion (1a, 1b) having striking surfaces at both ends in the longitudinal direction and formed in a substantially rod shape or a substantially prismatic shape, a handle (2 ) Is a T-shaped hammer, and is provided on the surface (1c) opposite to the handle of the striking portion (1), and the axis of the handle (2) among the directions orthogonal to the longitudinal direction And at least one of a recess (3) opened in a direction perpendicular to the surface and a portion corresponding to the opposing inner wall in the recess (3) parallel to the striking (1a, 1b) surface, A hammer with a nail extractor characterized by including a nail extraction portion (4) provided with a nail extraction groove (4c) protruding toward a portion corresponding to the opposing inner wall and having a groove width narrowing in the root direction from the tip. .
[0006]
According to a second aspect of the present invention, in the hammer with a nail puller according to the first aspect, a gap is provided between the tip of the nail punched portion and a portion corresponding to the inner wall of the recess facing the tip. This is a hammer with a nail clipper.
According to a third aspect of the present invention, in the hammer with a nail puller according to the first or second aspect, one of the two striking surfaces of the both end portions is formed as a concave surface, and the other striking surface is A hammer with a nail clipper characterized by being formed on a convex surface.
[0007]
According to a fourth aspect of the present invention, in the hammer with a nail puller according to the first aspect, the nail punched portion (54) is directed from the portion corresponding to the inner wall of the pair of concave portions (53) toward the center of the concave portion (53). A hammer with a nail extractor, characterized in that it has a pair of nail-extracting grooves (54c, 55c) that project from the vicinity of the center of the recess (53) and narrow in the root direction.
[0008]
According to a fifth aspect of the present invention, in the hammer with a nail puller according to the fourth aspect, the nail punched portion (74) protrudes from the portion corresponding to the inner wall of the pair of concave portions (73) to the center of the concave portion (73) ( 74a and 74b) are hammers with a nail-punch, characterized in that the mutually opposite tips are connected to each other.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the hammer with a nail punch according to the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a hammer with a nail punch according to the present invention.
FIG. 2 is a plan view of the hammer with a nail extractor of FIG.
FIG. 3 is a front view showing the main part of the hammer with a nail puller of FIG.
4 is a cross-sectional view taken along the line XX of FIG.
[0010]
As shown in FIGS. 1 to 4, the hammer with a nail puller according to the present invention has a striking portion 1 having striking surfaces 1 a and 1 b at both ends in the longitudinal direction, and is connected to a handle 2 and a T shape like a conventional tool. However, the striking portion 1 is provided with a concave portion 3 which is a feature of the present invention in the central portion of the top surface 1c opposite to the handle 2.
2 a is a handle fixing pin for fixing the handle 2 to the striking portion 1.
On the inner side surface of the recess 3, the striking surface 1 a has a back-to-back surface, and a nail extraction portion 4 is formed so as to protrude inward from the inner side surface facing this surface.
[0011]
The nail extraction part 4 including the nail extraction groove 4c has a structure according to the prior art. The nail extraction part 4 has a bifurcated fork shape having two blades 4a and 4b, and the outer upper surface is the same as the top surface 1c. In the plane. The inner lower surface is a slope that is thinner toward the tip and thicker at the base than the upper surface.
A V-shaped portion sandwiched between the two blades 4a and 4b is a nail punching groove 4c. The nail extraction groove 4c is used to insert and pull out a nail head (not shown) immediately below the nail head when the nail is extracted.
[0012]
The nail cutting groove 4c becomes narrower as it gets closer to the root, and the inner side is bent along the groove so that the inner and outer thickness in the vicinity of the groove does not increase even near the root. Further, the top surface 1c has a constant width along the longitudinal direction so that when the nail is pulled out, the force concentrates on a narrow portion serving as a fulcrum of the insulator, so that the timber surface is not damaged by the concentration of the force. It is flat and gently curved in the fulcrum movement direction.
[0013]
When pulling out a nail that has been driven into wood or the like, the nail head (not shown) is inserted into the recess 3 and the nail head is hooked into the nail extraction groove 4c as in the prior art. After that, the handle 2 is operated and the nail is pulled out by the principle of the lever.
Even if it is not nailing, it can handle various work on site. For example, it can be used when a metal rod or the like is pulled or moved sideways or moved or bent.
In this way, since no other tool is required and only one tool is required, extra operation can be omitted particularly in a dangerous place such as a work at a high place, which is safe.
[0014]
(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
For example, in the case shown in FIGS. 1 to 4, the striking portion is substantially in the shape of a rod, and the top portion is provided with a flat top surface 1c having a constant width in the longitudinal direction. However, as shown in FIG. It is not particularly necessary to flatten the top if it is substantially square and has four rounded corners.
FIG. 5 is a cross-sectional view showing such a modified form cut at a position according to XX in FIG.
[0015]
FIG. 6 is a front view showing the main part of another modified embodiment.
In the example of FIG. 6, the present invention is applied to a hammer with a nail puller provided with a hitting portion 21 a having a hitting surface at one end and a hitting portion 21 b having a hitting surface at the other end at both ends of the hitting portion 21. Is.
In the case of the modification of FIG. 6, a cap C such as a hard resin that is more flexible than the hard material is placed on the opposite side of the end portion of the hard hitting portion 21 a made of a hard material such as iron. Thus, the soft hitting portion 21b is formed.
[0016]
The recess 23 is provided in a hard hitting portion 21a made of a hard material, and the nail extraction portion 24 is constituted by two fork-like fork blades 24a and 24b protruding from one surface of the inner wall of the recess 23 toward the center of the recess. Yes.
The outer surfaces of the blades 24a and 24b are in the same plane as the surface 21c on the opposite side of the handle 22, and the inner surface is inclined closer to the outer surface toward the tip of the blade and thinner toward the blade tip. .
The direction in which the two blades 24a and 24b protrude is opposite to the soft-striking surface covered with the cap C, and the V-shaped portion sandwiched between the blades 24a and 24b has a nail groove 24c. It is.
[0017]
By extending the length of the recess 23 and the lengths of the blades 24a and 24b and expanding the space between the point where the nail is hooked and the fulcrum of the lever (the corner of the soft hitting portion), the handle 22 is based on the principle of lever. However, it is convenient to pull out a long nail at a stretch, although a stronger force must be applied.
When pulling out a nail (not shown) that has been driven into wood or the like, the head of the nail is inserted into the recess 23 and the nail head is hooked into the nail extraction groove as in the prior art, and the nail is moved in the depth direction of the nail extraction groove. After that, the handle 22 is operated and the nail is pulled out by the lever principle. At this time, since it is the surface of the cap C that becomes the fulcrum of the insulator and hits the surface of the wood or the like, the contacted surface is not damaged.
[0018]
In FIG. 6, the soft hitting portion 21b is formed by covering the material of the strong hitting portion 21a with the cap C. However, as shown inside the circle A in FIG. 6, the entire hitting portion is made of a hard material Fe such as iron and the like. It is combined with a slightly flexible material P such as hard resin (reinforced plastic).
The portion of the material P may be a soft hitting portion, and the portion of the hard material Fe may be a strong hitting portion, and a recess having a nail extraction portion may be provided in the hitting portion.
[0019]
In the hammer to which the present invention is applied, the striking surface may be a flat surface, a concave surface, a convex surface, a magnet surface, or any other surface.
Further, the two striking surfaces of the striking part may be large or small. FIG. 7 is a front view showing a hitting portion of an example in which the present invention is applied to such a hammer. Reference numerals 31a and 31b denote two striking surfaces, and reference numeral 31c denotes a top surface on which the concave portion 33 is provided.
[0020]
FIG. 8 is a front view showing a striking portion 41 of an embodiment in which the surface 43a facing the nail extraction portion 44 of the recess 43 is an inclined surface as another modified embodiment.
In this example, the bevel 43a facilitates guidance of the nail into the nail extraction groove between the blades 44a and 44b.
FIG. 9 is a plan view showing still another modified form of a hammer with a nail punch.
In the embodiment of FIG. 9, the concave portion 53 is provided on the top surface 51 c of the hitting portion on the side opposite to the handle 52, but the surfaces (hitting surfaces 51 a and 51 b) of the inner wall of the concave portion 53 that face in the longitudinal direction. The two blades 54a and 54b and 55a and 55b of the bifurcated fork-shaped nail-extracting portion protrude from each of the surfaces parallel to each other toward the center of the recess 53 and face each other.
[0021]
Nail extraction grooves 54c and 55c are provided between the blades 54a and 54b, and between the blades 55a and 55b, which become narrower toward the root of each nail extraction portion. As described above, since the nail punching grooves are in two directions, no matter which direction of the hitting portion 51 is in use, the nail is placed in any one of the nail pulling grooves 54c and 55c without changing the direction of the hammer during the operation. You can pull it out and pull it out.
FIG. 10 shows a fork-shaped nail-extracted portion fork-like fork extending from each of the longitudinally opposed surfaces of the inner wall of the concave portion 63 toward the center of the concave portion 63 when the cross section of the hitting portion is substantially square. It is a top view of what comprised so that the two blades 64a and 64b, 65a and 65b may protrude, and may face each other. The effect on use is the same as in FIG.
9 and 10 may be combined to change the left and right fork angle.
[0022]
FIG. 11 is a plan view showing still another modification. FIG. 12 is a front view showing a main part of the hammer with a nail puller of FIG.
11 and 12 also includes a recess 73 on the top surface 71c of the striking portion opposite to the handle 72, and the center of the recess 73 from each of the longitudinally opposed surfaces of the inner wall of the recess 73. The two blades of the bifurcated fork-shaped nail-extracting portion protrude toward the end, and the tip portions of the facing blades are connected to each other and integrated.
In the figure, 74a and 74b are portions of two pairs of blades facing each other, and 75a and 75b are connecting portions where the tip portions of the blades are connected.
[0023]
In the embodiment of FIGS. 11 and 12 as well, since all parts of the nail extraction part are inside the top surface 71c, there is very little fear of being caught by other things. In this example, the opposing blades are connected to each other. Therefore, the sense of security is higher than the embodiment of FIGS. An insertion hole 76 for inserting the head of a nail to be pulled out is provided between the connecting portions 75a and 75b.
[0024]
Nail extraction grooves 74c and 75c are provided which become narrower from the insertion hole 76 toward the root of each nail extraction portion. In this manner, since the nail punching grooves are in two directions, the nail punching grooves 74c and 75c can be inserted into any one of the nail punching grooves 74c and 75c without changing the direction of the hammer during the operation, regardless of the direction of the hitting portion in use. It can be pulled out by hooking its head.
FIG. 13 shows the embodiment shown in FIGS. 11 to 12 in which the depth of the concave portion is increased, and can cope with a longer nail pulling operation.
[0025]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, the concave portion is provided on the surface opposite to the handle of the striking portion, and the surface parallel to the striking surface of the inner wall of the concave portion is directed toward the center of the concave portion. Since the nail extraction portion is provided so as to protrude, the bifurcated blade of the nail extraction portion does not protrude outward as in the conventional example. Therefore, there is an effect that it is convenient for carrying and storing the tool, and safety is increased.
[0026]
According to a second aspect of the present invention, in the hammer with a nail puller according to the first aspect, the concave portion and the nail puller are provided in the strong hitting portion of the hammer composed of a strong hitting portion having a hitting surface and a soft hitting portion having a soft hitting surface. By providing the portion, the same effect as described above can be obtained even in the case of a hammer that can be used for strong hitting and soft hitting.
[0027]
According to a third aspect of the present invention, in the hammer with a nail puller according to the first aspect, the nail puller protrudes from each of the pair of surfaces parallel to the striking surface of the inner wall of the recess toward the center of the recess, Since a pair of nail punching grooves whose groove width narrows in the root direction from the center is provided, in addition to the effect of claim 1, there is an effect that the hammer can be used immediately without changing the hammer from either direction during the work. .
[0028]
According to a fourth aspect of the present invention, in the hammer with a nail puller according to the third aspect, the nail punching portion is formed by connecting opposing portions of the tip portion protruding from each of the pair of surfaces of the inner wall of the recess to the center of the recess. Therefore, in addition to the effect of claim 3, there is an effect that a high degree of security can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of an embodiment of the present invention.
FIG. 2 is a plan view of the example embodiment of FIG.
FIG. 3 is a front view showing a main part of the embodiment example of FIG. 1;
4 is a cross-sectional view taken along the line XX of FIG. 2 of the embodiment example of FIG.
FIG. 5 is a cross-sectional view of a modification according to FIG.
FIG. 6 is a plan view showing another modification.
FIG. 7 is a front view showing a striking portion of an embodiment of a hammer having a striking surface that is large or small.
FIG. 8 is a front view showing the striking portion of the embodiment in which the opposing surfaces of the nail extraction portion of the recess are inclined.
FIG. 9 is a plan view showing an embodiment in which a pair of nail extraction portions are provided facing each other.
FIG. 10 is a plan view showing an embodiment in which a nail punching portion similar to that in FIG. 9 is provided in a striking portion having a square cross section.
FIG. 11 is a plan view showing still another modification.
12 is a front view showing a main part of the hammer with a nail puller of FIG. 11. FIG.
FIG. 13 is a front view showing a main part of an embodiment in which the depth of the recess is large.
[Explanation of symbols]
1, 11, 21, 31, 41, 51, 61, 71 Strike part 1a, 1b Strike face 1c, 21c, 31c Top face 2, 12, 22, 32 Handle 3, 23, 33 Recess 4, 14, 24, 34 Nail extraction part 4c, 14c, 54c, 55c, 74c, 75c Nail extraction groove 21a Strong hitting part 21b Soft hitting part 75a, 75b Connecting part

Claims (5)

In a hammer in which a striking portion having striking surfaces at both ends in the longitudinal direction and formed into a substantially circular rod shape or a substantially prismatic shape and a handle in a T shape,
A recess provided on a surface opposite to the handle of the striking portion and opening in a direction orthogonal to the axis of the handle out of a direction orthogonal to the longitudinal direction;
It protrudes from at least one of the portions corresponding to the opposing inner wall in the recess and parallel to the striking surface toward the portion corresponding to the opposing inner wall, and the groove width narrows in the root direction from the tip. Including a nail punch with a nail groove,
A hammer with a nail remover. The hammer with a nail extractor according to claim 1,
A gap is provided between the tip of the nail punch and the portion corresponding to the inner wall of the recess facing the tip;
A hammer with a nail remover. In the hammer with a nail puller according to claim 1 or 2,
Of the two striking surfaces at both ends, one striking surface is formed as a concave surface, and the other striking surface is formed as a convex surface,
A hammer with a nail remover. The hammer with a nail extractor according to claim 1,
The nail extraction portion protrudes from the portion corresponding to the inner wall of the pair of recesses toward the center of the recess,
A hammer with a nail remover, characterized in that each of the protruding portions is provided with a pair of nail removal grooves whose groove width narrows in the root direction from the vicinity of the center of the recess. The hammer with a nail extractor according to claim 4,
The nail punching portion is characterized in that the opposite ends of the portions protruding from the portions corresponding to the inner walls of the pair of recesses to the center of the recess are connected to each other.

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