JPH0758090B2 - Screw nail - Google Patents
Screw nailInfo
- Publication number
- JPH0758090B2 JPH0758090B2 JP4009359A JP935992A JPH0758090B2 JP H0758090 B2 JPH0758090 B2 JP H0758090B2 JP 4009359 A JP4009359 A JP 4009359A JP 935992 A JP935992 A JP 935992A JP H0758090 B2 JPH0758090 B2 JP H0758090B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- screw
- wood
- spiral
- fastening screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、木材にねじ込んで固
定するねじ釘に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw nail which is screwed and fixed to wood.
【０００２】[0002]
【従来の技術】木材に使用する従来のねじ釘は、一端に
先鋭端部と他端に頭部を有する胴部の外周面に先鋭端部
から頭部側に向けて連続する締結用ねじを設けた構造に
なっており、締結用ねじが一条のタイプ、同じく多条の
タイプ、高いねじ山と低いねじ山をもつ二条ねじタイプ
等がある。2. Description of the Related Art A conventional screw nail used for wood has a fastening screw that is continuous from the sharp end toward the head side on the outer peripheral surface of a body having a sharp end at one end and a head at the other end. It has a structure provided, and there are a single-thread type for fastening, a multi-thread type, a double-thread type with a high thread and a low thread.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記のよう
な従来のねじ釘は、削孔機能がないため、木材に対して
ねじ込むと、締結用ねじの螺入によって胴部が木材中に
圧入して行くことになり、このため木材に押し広げ力が
作用し、これが原因で木材に割れが発生しやすいという
問題がある。By the way, since the conventional screw nail as described above does not have a hole drilling function, when it is screwed into wood, the body portion is press-fit into the wood by screwing the fastening screw. Therefore, there is a problem that a spreading force acts on the wood, which causes cracks in the wood.
【０００４】そこでこの発明は、上記のような問題点を
解決するため、ねじ込み時に木材の割れを防止すること
ができるねじ釘を提供することを課題としている。Therefore, an object of the present invention is to provide a screw nail capable of preventing cracking of wood when screwed in, in order to solve the above problems.
【０００５】[0005]
【課題を解決するための手段】上記のような課題を解決
するため、この発明は、一方の端部が先鋭端部となり、
他端が頭部となる胴部の外周面に締結用ねじを設け、前
記胴部の先端側の外周面に、締結用ねじよりも山の高さ
が低く、かつリード角の大きい切削用螺旋と、この切削
用螺旋の間で独立する補助ねじとを設けた構成を採用し
たものである。In order to solve the above-mentioned problems, the present invention is such that one end is a sharp end.
A screw for fastening is provided on the outer peripheral surface of the body whose other end is the head, and a spiral for cutting with a larger lead angle and a larger lead angle than the screw for fastening is provided on the outer peripheral surface on the tip side of the body. And an auxiliary screw independent between the cutting spirals is adopted.
【０００６】[0006]
【作用】胴部の外周面に締結用ねじと先端側に切削用螺
旋を設けたので、木材に対してねじ込むと、切削用螺旋
が胴部よりも少し大きな削孔を形成し、その周面に締結
用ねじが螺入して行くため、胴部の進入時に木材に大き
な押し広げ力を与えることがなく、従って木材に割れを
生じさせることなくねじ込むことができる。Since the fastening screw is provided on the outer peripheral surface of the body and the cutting spiral is provided on the tip side, when the screw is screwed into the wood, the cutting spiral forms a hole slightly larger than the body, and the peripheral surface is formed. Since the fastening screw is screwed in, the wood is not applied with a large spreading force when the body enters, so that the wood can be screwed in without cracking.
【０００７】[0007]
【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【０００８】図１（Ａ）乃至（Ｃ）において、ねじ釘１
は、一方の端部が先鋭端部２となり他端に頭部３を有す
る胴部４の外周面に締結用ねじ５と切削用螺旋６を設け
て形成されている。In FIGS. 1A to 1C, a screw nail 1
Is formed by providing a fastening screw 5 and a cutting spiral 6 on the outer peripheral surface of a body 4 having one end that is a sharp end 2 and a head 3 at the other end.
【０００９】上記先鋭端部２は、長い円錐形となり、締
結用ねじ５は、先鋭端部２から始まって頭部３側に向か
い胴部４の中間に達する二条螺旋に形成されている。The sharp end 2 has a long conical shape, and the fastening screw 5 is formed in a double-strand spiral starting from the sharp end 2 toward the head 3 and reaching the middle of the body 4.
【００１０】切削用螺旋６は、先鋭端部２の外周面で、
先端から始まって胴部４に達する部分の範囲の間に設け
られ、その山の高さは締結用ねじ５のねじ山よりも低
く、かつリード角は大きく設定されている。The cutting spiral 6 is formed on the outer peripheral surface of the sharp end 2.
It is provided between the range of the portion starting from the tip and reaching the body portion 4, the height of the crest is lower than the thread of the fastening screw 5, and the lead angle is set large.
【００１１】上記切削用螺旋６は図示の場合大きなリー
ド角で二条を設け、この螺旋６を設けた部分において締
結用ねじ５は切削用螺旋６と交差する部分が分断され、
独立した複数の補助ねじ５ａになっている。In the illustrated case, the cutting spiral 6 is provided with two threads with a large lead angle, and at the portion where the spiral 6 is provided, the fastening screw 5 is divided at a portion intersecting with the cutting spiral 6.
It is a plurality of independent auxiliary screws 5a.
【００１２】この補助ねじ５ａは、図１（Ａ）の場合そ
の両端部が切削用螺旋６とつながらず、切削用螺旋６の
進入回転方向の前後に切削屑の誘導路７を形成してい
る。In the case of FIG. 1A, both ends of the auxiliary screw 5a are not connected to the cutting spiral 6, and a cutting waste guiding path 7 is formed in front of and behind the cutting spiral 6 in the rotating direction. .
【００１３】上記切削用螺旋６による木材の切削屑の発
生は進入回転方向の前側に発生するので、図１（Ｃ）の
ように、補助ねじ５ａの進入回転方向の先端側は、切削
用螺旋６の進入回転方向の後側とつながっているように
し、切削用螺旋６の進入回転方向の前側にのみ切削屑の
誘導路７を形成するようにしてもよい。Since the wood scraps generated by the cutting spiral 6 occur on the front side in the approach rotation direction, the tip side of the auxiliary screw 5a in the approach rotation direction is the cutting spiral as shown in FIG. 1C. 6 may be connected to the rear side of the approach rotation direction of the cutting spiral 6, and the guide path 7 for the cutting waste may be formed only on the front side of the cutting spiral 6 in the approach rotation direction.
【００１４】この発明のねじ釘は上記のような構成であ
り、木材に対するねじ込みを行なうと、先鋭端部２から
胴部４の進入にともなって、切削用螺旋６は胴部４と略
同径もしくはそれ以上のリード孔を切削して行き、締結
用ねじ５はこのリード孔の周囲に螺入する。The threaded nail of the present invention has the above-mentioned structure. When the wood is screwed in, the cutting spiral 6 has substantially the same diameter as the body 4 as the body 4 enters from the sharp end 2. Alternatively, more lead holes are cut, and the fastening screw 5 is screwed into the periphery of the lead hole.
【００１５】上記切削用螺旋６によるリード孔の切削に
より、胴部４は摩擦抵抗を生じることなく円滑に進入す
ると共に、木材に大きな圧力を加えることがなくなり、
木材の割れの発生を防止することができる。Due to the cutting of the lead hole by the cutting spiral 6, the body portion 4 smoothly enters without causing frictional resistance, and no large pressure is applied to the wood.
It is possible to prevent cracking of wood.
【００１６】また、切削用螺旋６によるリード孔の切削
によって生じる削り屑は、締結用補助ねじ５ａの端部と
切削用螺旋６の間に形成された誘導路７を通り、切削用
螺旋６の大きなリード角の傾斜に沿って上部に逃がさ
れ、従って、削り屑によって摩擦抵抗を増大させたり木
材に圧力を加えるというようなことはない。Further, the shavings generated by cutting the lead hole by the cutting spiral 6 pass through the guide path 7 formed between the end of the auxiliary fastening screw 5a and the cutting spiral 6, and the cutting spiral 6 is cut. There is no escape to the top along a large lead angle slope, so shavings do not increase frictional resistance or exert pressure on the wood.
【００１７】上記のように、胴部４のねじ込み時に、切
削用螺旋６でリード孔を切削することになるので、木材
に過剰な圧力を加えることがなく、木材の割れの発生を
防止できると共に、リード孔に螺入する締結用ねじ５に
よって強固な締結状態が得られることになる。As described above, since the lead hole is cut by the cutting spiral 6 when the body portion 4 is screwed in, it is possible to prevent the wood from cracking without applying excessive pressure to the wood. A strong fastening state can be obtained by the fastening screw 5 screwed into the lead hole.
【００１８】[0018]
【発明の効果】以上のように、この発明によると、一方
の端部が先鋭端部となり、他端に頭部を有する胴部の外
周面に、締結用ねじと、先端側の位置にこの締結用ねじ
よりも山の高さが低く、リード角の大きい切削用螺旋を
設け、かつ切削用螺旋の間に独立する補助ねじを設けた
ので、木材に対するねじ込み時に、切削用螺旋で胴部に
等しいかそれよりも少し大き目のリード孔を切削するこ
とができ、従って胴部が進入しても木材に大きな圧力を
加えることがなく、木材に割れを生じさせることがな
く、しかも摩擦抵抗の発生を少なくし、円滑にねじ込む
ことができる。As described above, according to the present invention, one end portion is a sharp end portion, and the fastening screw is provided at the position on the tip side on the outer peripheral surface of the body portion having the head portion at the other end. Since the cutting helix has a lower peak than the fastening screw and has a large lead angle, and an independent auxiliary screw is provided between the cutting helices, the cutting helix is attached to the body when screwing into wood. It is possible to cut lead holes that are equal to or slightly larger than that. Therefore, even if the body enters, it does not apply large pressure to the wood, does not crack the wood, and generates friction resistance. Can be screwed in smoothly.
【００１９】また、切削用螺旋間に独立した補助ねじを
設けたので、切削用螺旋により発生する切削屑を補助ね
じによって排出することができ、切削用螺旋の切削効率
を低下させることがなく下孔穿孔が円滑に行なえる。Further, since an independent auxiliary screw is provided between the cutting spirals, the cutting waste generated by the cutting spirals can be discharged by the auxiliary screws, and the cutting efficiency of the cutting spiral is not lowered. Holes can be drilled smoothly.
【図１】（Ａ）は第１の実施例を示すねじ釘の正面図、
（Ｂ）は（Ａ）の矢印Ｂ−Ｂに沿う拡大断面図、（Ｃ）
は切削用螺旋の部分の他の例を示す正面図FIG. 1A is a front view of a screw nail showing a first embodiment,
(B) is an enlarged sectional view taken along the arrow BB of (A), (C)
Is a front view showing another example of the portion of the cutting spiral
１ ねじ釘 ２ 先鋭端部 ３ 頭部 ４ 胴部 ５ 締結用ねじ ５ａ 補助ねじ ６ 切削用螺旋 ７ 誘導路 1 Screw Nail 2 Sharp End 3 Head 4 Body 5 Fastening Screw 5a Auxiliary Screw 6 Cutting Spiral 7 Taxiway
Claims (1)
部となる胴部の外周面に締結用ねじを設け、前記胴部の
先端側の外周面に、締結用ねじよりも山の高さが低く、
かつリード角の大きい切削用螺旋と、この切削用螺旋の
間で独立する補助ねじとを設けたねじ釘。1. A fastening screw is provided on the outer peripheral surface of a body portion, one end of which is a sharp end portion and the other end of which is a head, and the outer peripheral surface of the body portion on the tip side is more than the fastening screw. The height of the mountain is low,
And a screw nail provided with a cutting spiral having a large lead angle and an auxiliary screw independent between the cutting spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4009359A JPH0758090B2 (en) | 1992-01-22 | 1992-01-22 | Screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4009359A JPH0758090B2 (en) | 1992-01-22 | 1992-01-22 | Screw nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05196021A JPH05196021A (en) | 1993-08-06 |
| JPH0758090B2 true JPH0758090B2 (en) | 1995-06-21 |
Family
ID=11718282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4009359A Expired - Lifetime JPH0758090B2 (en) | 1992-01-22 | 1992-01-22 | Screw nail |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0758090B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030011849A (en) * | 2000-05-19 | 2003-02-11 | 파마 라이터 슈테판 | Self-tapping bush-shaped screwed insert |
| DE102008048703A1 (en) * | 2008-09-24 | 2010-03-25 | Fischerwerke Gmbh & Co. Kg | screw |
| DE202011100601U1 (en) * | 2011-05-12 | 2011-07-11 | Berner Se | Wood or plastic screw |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0346012B2 (en) * | 1984-04-28 | 1991-07-12 | Toyoda Chuo Kenkyusho Kk |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046012U (en) * | 1997-05-16 | 1998-02-20 | 南嶺企業有限公司 | Golf club head |
-
1992
- 1992-01-22 JP JP4009359A patent/JPH0758090B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0346012B2 (en) * | 1984-04-28 | 1991-07-12 | Toyoda Chuo Kenkyusho Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05196021A (en) | 1993-08-06 |
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