JPH0743773U - Nails for foam concrete, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to further improve the effect of preventing slipping out after driving into a porous material such as foamed concrete. [Structure] A nail body 1 is a core body 2, a cylinder body 3 is fitted onto the core body 2, and an anchor body 4 is formed by connecting the tip end side of the core body 2 and the tip end side of the cylinder body 3 together. In addition, the core body 2 is formed to be longer than the tubular body 3, and the locking piece is provided near the opening of the tubular body 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nail for a foam concrete or the like which is mainly used for a porous material such as foam concrete.

[0002]

[Prior art]

 Conventionally, as a nail to be driven into a porous material such as this kind of foamed concrete, there is, for example, one disclosed in JP-A-62-124304.

That is, the nail 15 has bifurcated legs 15a and 15b through a notch 16 as shown in FIG. 5, and the legs 15a and 15b are formed so as to widen when driven. It is true.

[0004]

[Problems to be solved by the device]

 However, such nails were originally developed to increase the pull-out strength, and as shown in the figure, the bifurcated legs are driven in the curved state while being expanded, and the curved expansion is performed. Although the structure is designed to prevent slipping out depending on the condition, there was a problem in that the effect of preventing upward pull-out force was not always perfect.

The present invention has been made in order to solve such a problem, and an object thereof is to further improve the retaining prevention effect after driving into a porous material such as foam concrete. It is a thing.

[0006]

[Means for Solving the Problems]

 The present invention has been made as a solution to such a problem. The nail body 1 includes a core body 2, a cylinder body 3 fitted onto the core body 2, a tip side of the core body 2 and a cylinder body 3. The core body 2 is formed to be longer than the cylindrical body 3, and the locking piece 5 is formed near the opening of the cylindrical body 3. It is to be provided.

[0007]

[Action]

 Then, the nail having such a structure is used by hitting the anchor body 4 on the tip end side against the hit body and hitting the upper side of the core body 2 in this state to hit the hit body.

At this time, since the locking piece 5 is formed on the cylindrical body 3, the nail first enters the driven body up to the locking piece 5, and then the core formed to be longer than the cylindrical body 3. The body 2 is driven up to the locking piece 5 of the cylindrical body 3.

As a result, the core body 2 further enters from the cylinder body 3 in the driven body, whereby the end of the anchor body 4 connected to the cylinder body 3 is fixed and connected to the core body 2. The side will be pushed upwards and will bend laterally.

As a result, the nail is driven into the driven body, and the driven state of the nail into the driven body is reliably maintained by the anchor effect of the anchor body 4. .

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1A and 1B, reference numeral 1 is a substantially cylindrical core body 2, a cylindrical body 3 fitted on the outer peripheral surface of the core body 2, a tip side 2 a of the core body 2, and a cylinder. 1 shows a stainless steel nail main body composed of an anchor body 4 formed by a plate-like body that is connected to the tip side 3a of the body 3 and is bent into a substantially V shape.

Reference numeral 5 denotes a locking piece formed by bending the end of the cylindrical body 3 on the opening side 3b outwardly.

Reference numeral 6 denotes a rod body inserted into the hollow portion 7 of the core body 2, and has a circular head portion 8 formed at one end side.

Next, when manufacturing the nail 9 having such a structure, first, as shown in FIG. 2, notches 11 and 11 are formed on both side edges 10a and 10b of the elongated plate-like body 10, and the notches are formed. The piece 12 on one side of the parts 11, 11 is formed to be longer than the piece 13 on the other side, and the piece 12 on one side is formed to be narrower than the piece 13 on the other side.

Next, as shown in FIG. 3A, the piece 12 on the one side is wound in a cylindrical shape, and the plate-like body 10 is bent into a substantially V shape at the notches 11 and 11, and the other side is formed. The piece 13 on one side is externally fitted to the piece 12 on one side wound in a tubular shape. Then, the nail 9 is manufactured by outwardly bending the opening side of the piece 13 on the other side as shown in FIG.

Next, a case where the nail 9 formed as described above is driven into the foam concrete 14 will be described.

First, when the anchor body 4 of the nail 9 bent in a substantially V shape is directed toward the foam concrete 14, and the head 8 of the nail 9 is tapped in that state, as shown in FIG. The nail 9 penetrates into the foam concrete 14 up to the locking piece 5 formed on the cylindrical body 3.

After that, when the head 8 of the nail 9 is further hit, the core body 2 is driven up to the locking piece 5 of the cylindrical body 3 as shown in FIG. At this time, since the core body 2 is further advanced from the cylinder body 5 fitted in the foam concrete 14, the anchor body 4 connected to the core body 2 and the cylinder body 5 is a cylinder body. The side connected to the body 5 is fixed, and the side connected to the core body 2 is pressed upward to be bent in a substantially V shape in the lateral direction.

Therefore, since the tip of the nail 9 is bent by the anchor body 4 in the foamed concrete 14, the upward pulling force of the nail 9 is prevented. The pulling out of the nail 9 from the foamed concrete 14 is reliably prevented.

Although the core body 2 is formed in a cylindrical shape in the above-mentioned embodiment, the shape of the core body 2 of the present invention is not limited to this. For example, the core body 2 may be formed in a triangular cylinder shape. Good. In short, if the tubular body 5 can be fitted onto the core body 2, its shape does not matter.

Further, the material of the nail main body 1 is not limited to the stainless steel of the above embodiment, but may be another metal or a synthetic resin having a good strength, in short, a material that can withstand a tapping force. If so, there is no particular question.

Further, in the above-mentioned embodiment, the rod 6 is inserted into the cylindrical core 2 in order to facilitate the tapping work, but it is not necessary to insert the rod 6. It is not a condition of the invention, and for example, only the core body 2 may be directly hit.

Further, in the above embodiment, the case where the nail 9 is used for driving the foamed concrete 14 has been described, but the application of the nail 9 of the present invention is not limited to this, and for example, it can be applied to wood. It can also be used for driving, and its use does not matter.

[0025]

[Effect of device]

 As described above, according to the present invention, the core body of the nail main body is formed to be longer than the tubular body, and the locking piece is provided near the opening side of the tubular body to strike the core body. First, the nail body enters the driven body up to the locking piece formed on the tubular body, and then the core body formed to be longer than the tubular body enters the locking piece of the tubular body. The core body further enters from the externally fitted cylinder body in the driven body, and the anchor body connecting the core body and the cylinder body is bent laterally.

Therefore, since the anchor body at the tip is bent as described above in the driven body, the nail is reliably maintained in the driven body, and in particular, the upward pullout prevention is prevented. There is a special remarkable effect that the effect is much better than that of conventional nails.

[Brief description of drawings]

FIG. 1A shows a front view of a nail as one embodiment,
(B) shows the sectional view on the AA line of (A).

FIG. 2 is a plan view showing a plate-shaped body.

FIG. 3 is a perspective view showing a nail manufacturing process.

4A and 4B are partial cross-sectional views showing a usage state.

FIG. 5 is a partial cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 ... Nail main body 2 ... Core body 3 ... Cylindrical body 4 ... Anchor body 5 ... Locking piece

Claims (2)

[Scope of utility model registration request] 1. A nail body (1) comprises a core body (2), a cylinder body (3) fitted onto the core body (2), a tip side of the core body (2) and a cylinder body (3). It consists of an anchor body (4) that is bent by connecting it to the tip side,
Further, the core body (2) is formed to be longer than the tubular body (3), and the locking piece (5) is provided near the opening of the tubular body (3). Nail for concrete etc. 2. The nail for foamed concrete or the like according to claim 1, wherein the anchor body (4) is a plate-shaped body.