JP2000039004A - Nail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nail to suppress the paint peeling of the head of a nail for siding board and be excellent in a finish of a nail hole formed by the nail. SOLUTION: A number of square cones 16 are arranged in a lattice-form shape in the head top surface of a pan head nail 11 and painting is applied on the head top surface. The collision load of the driver of a nailing machine is dispersed into a number of the square cones 16 and peeling of painting hardly occurs. Also when a pan head 12 is laterally rubbed by a driver, the driver is prevented from contact with the shoulder of the pan head 12 and peeling of painting of the edge part of the pan head 12 is prevented from occurring. Further, the surface layer part of a siding board is cutely sheared by the outer edge part of the bottom of the pan head 12 and appearance of a nail hole in which the pan head 12 is embedded is excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail, and more particularly to a nail suitable for mounting a siding board.

[0002]

2. Description of the Related Art
When a ceramic siding board is nailed to the base of wood or steel plate as the outer wall of the house, make sure that the head of the nail exposed on the surface does not impair the appearance of the house, and that the head is colored in harmony with the color of the siding board. Painted nails are used. FIG. 6 shows a conventional painted nail, and FIG.
(B) is a round head nail 2 in which both heads 1a and 2a have been baked (not shown).

[0003] The flat-headed nail 1 has a flat top surface or a mesh-shaped one. In any case, the nail comes into surface contact with a driver of a nailing machine, and since the contact area is large, the nail is painted by friction of the driver. There is a drawback that peeling is easily generated.

[0004] The nails 1 and 2 are driven so that the top surface thereof is slightly sunk below the surface of the siding board, but the outer edge of the bottom surface of the head 1a of the flat head nail 1 is not sharp but has a rounded edge. 7, the surface layer of the siding board S cannot be sharply sheared as shown in FIG. 7, the periphery of the nail hole h rises, and the cutout is chipped or broken, thereby increasing the diameter of the nail hole h. The appearance is not good.

On the other hand, the round-head nail 2 has a better finish at the periphery of the nail hole than the flat-head nail 1, but the apex of the curved head 2a makes point contact with the driver of the nailer, so that the vertex is painted. There is a problem that the nail is easily peeled off and the nail 2 is inferior in straightness, so that the nailing machine is liable to be clogged.

In some cases, the nail driver's posture is disturbed by the recoil at the time of nailing, and the tip of the driver rubs the nail head laterally to peel off the paint on the periphery of the nail head. The peeling is more conspicuous than the peeling of the paint in the center.

[0007] Accordingly, the present invention is to solve the problem in that the peeling of the paint, particularly the peeling of the peripheral portion of the nail head is suppressed as much as possible, and the nail having a good finish of the nail hole periphery of the outer wall material after nailing is provided. The technical problem to be solved arises, and an object of the present invention is to solve the above problem.

[0008]

SUMMARY OF THE INVENTION The present invention proposes to achieve the above object. A plurality of pyramids such as quadrangular pyramids and cones are arranged in a grid on the top surface of a pan nail. And to provide nails with a painted top surface.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a nail 11, 12 is a pan head, 13 is a trunk, 14 is a point, and a number of ring-shaped ribs 15 are formed on the outer peripheral surface of the trunk 13.

As shown in FIG. 2, a large number of quadrangular pyramids 16 are arranged in a grid pattern at regular intervals on the top surface of the pan 12. The pan 12 and the pyramid 16 are formed by molding a square pyramid female mold on the hammer striking surface and attaching it to a nail making machine, forging and molding the same as in a normal nail manufacturing process. 14 is cut to form the nail 11. Then, a paint of a color corresponding to the color of the siding board is applied to the pan head 12.

The shape and number of the pyramids 16 on the parietal surface are not particularly limited, and may be triangular pyramids or cones other than the quadrangular pyramids, and may be arranged at regular intervals as shown. Alternatively, they may be arranged adjacent to each other without a gap.
In order to receive the driving force of the driver of the nail driver in a distributed manner, it is desirable that the number of cones is as large as possible.

FIG. 3 shows a hitting state of the nail 11 by the nailing machine. The driver D of the nailing machine comes into contact with the vertices of a large number of quadrangular pyramids 16 formed on the pan head 12 of the nail 11, and the collision load is applied. Are dispersed in a large number of square pyramids 16, so that the coating hardly peels off, and even if the apex of the square pyramid 16 peels, the peeled surface is inconspicuous because it is a minute dot.

Also, as shown in FIG. 4, when the driver D slides laterally after colliding with the nail 11 or when the driver D of the nail driver collides with the nail 11 in an inclined position, the driver D also Pan head 1 in contact with quadrangular pyramid 16 at outer edge
There is no contact with the shoulder of No. 2 and the paint on the peripheral portion of the pan 12 does not come off.

FIG. 5 shows a state in which the siding board S is nailed to the base B. The outer peripheral surface of the pan 12 of the nail 11 is a curved surface tapering upward, and the outer edge of the bottom surface is a sharp edge. Therefore, the surface layer of the siding board S is sharply sheared, the diameter of the nail hole h is almost the same as the outer diameter of the pan 12, and the finish of the nail hole peripheral portion is good.

It should be noted that the present invention is not limited to the above embodiment, and various modifications are possible within the technical scope of the present invention, and it goes without saying that the present invention extends to those modifications. is there.

[0016]

As described above, in the nail of the present invention, a large number of pyramids such as quadrangular pyramids and cones are arranged in a grid on the top of the pan, and the top is painted. The impact load of the driver of the nail driver is distributed to many cones, and the paint is hardly peeled off. Even if the paint at the apex of the cone is peeled off, it is inconspicuous because it is peeled into minute dots. In addition, even when the driver rubs the nail head in the lateral direction, the driver does not touch the shoulder of the pan head, and the paint on the periphery of the pan head does not peel off. In addition, the surface of the siding board is sharply sheared by the outer edge of the bottom surface of the pan, and the edge of the nail hole has a good finish.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an embodiment of a nail of the present invention.

FIG. 2 is an enlarged view of the nail of FIG. 1, (a) is a plan view,
(B) is a front view.

FIG. 3 is an explanatory diagram showing a nail hitting state by a nailing machine.

FIG. 4 is an explanatory diagram showing a nail hitting state by a nailing machine.

FIG. 5 is an explanatory view showing a nail driving state.

FIG. 6 shows a conventional nail, in which (a) is a front view of a flat-head nail,
(B) is a front view of a round head nail.

FIG. 7 is an explanatory view showing a conventional nail driving state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Nail 12 Pan-head 13 Body 14 Point 15 Ring-shaped rib 16 Square pyramid D driver h Nail hole S Siding board

Claims (1)

[Claims] 1. A nail in which a plurality of pyramids such as quadrangular pyramids or cones are arranged in a grid on the top surface of a pan-head nail, and the top surface is painted.