JPH06200915A - Screw for thin plate and connection structure between screw and thin plate - Google Patents
Screw for thin plate and connection structure between screw and thin plateInfo
- Publication number
- JPH06200915A JPH06200915A JP36062792A JP36062792A JPH06200915A JP H06200915 A JPH06200915 A JP H06200915A JP 36062792 A JP36062792 A JP 36062792A JP 36062792 A JP36062792 A JP 36062792A JP H06200915 A JPH06200915 A JP H06200915A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- thin plate
- shank
- annular stopper
- tip
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Dowels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属薄板に各種部材を
取り付けるのに適した薄板用ねじ及び該ねじと薄板との
結合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin plate screw suitable for attaching various members to a thin metal plate, and a connecting structure of the screw and the thin plate.
【０００２】[0002]
【従来の技術】建築用の金属支持板に吊り金具その他の
部材を取り付けるのにタッピンねじやドリルねじが大量
に使用されている。2. Description of the Related Art A large number of tapping screws and drill screws are used to attach hanging fittings and other members to metal supporting plates for construction.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記金属支持
板が薄くてねじ山の１ピッチ以下の厚みしかない場合
や、前記支持板が１枚だけの場合には、前記支持板の強
度が低く、ねじに作用する引張り荷重で簡単に脱落した
り、前記支持板に形成した雌ねじが過剰な締付けトルク
により空転するなどの不都合があった。However, when the metal supporting plate is thin and has a thickness of 1 pitch or less of the screw thread, or when there is only one supporting plate, the strength of the supporting plate is low. However, there are some inconveniences such as easy falling off due to a tensile load acting on the screw, and an internal screw formed on the support plate idling due to excessive tightening torque.
【０００４】本発明は、このような問題点を解決するも
ので、１枚の金属支持板に対して強固に固着され、薄板
に対しても大きな保持力と強いトルク抵抗を発揮する薄
板用ねじ及び該ねじと薄板との結合構造を提供すること
を目的とする。The present invention solves such a problem and is a screw for a thin plate which is firmly fixed to one metal supporting plate and exhibits a large holding force and a strong torque resistance even for a thin plate. Another object of the present invention is to provide a connecting structure of the screw and the thin plate.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の薄板用ねじは、２条のねじ山を有するスト
レートシャンクの先端部に円錐部が連設されると共に、
その先端に穴明け手段が設けられており、一方、前記シ
ャンクの後端部に前記ねじ山の外径より大径の環状スト
ッパが設けられ、かつ前記環状ストッパに連設した軸部
に他の部材の結合手段が設けられていることを特徴とす
る。In order to achieve the above object, the thin plate screw of the present invention has a conical portion connected to the tip of a straight shank having two threads.
The tip of the shank is provided with a drilling means, while the rear end of the shank is provided with an annular stopper having a diameter larger than the outer diameter of the screw thread. It is characterized in that means for connecting members are provided.
【０００６】また、本発明によるねじと薄板との結合構
造は、前記薄板用ねじの前記穴明け手段により金属薄板
にあけた開口の周辺部分を前記円錐部により、膨出させ
て円錐台形部を形成し、前記環状ストッパが前記薄板に
当接する締結時において、前記２条のねじ山が前記円錐
台形部の開口縁に係止されることを特徴とする。Further, in the screw-thin plate connecting structure according to the present invention, the peripheral portion of the opening made in the thin metal plate by the hole forming means of the thin plate screw is bulged by the conical portion to form a truncated cone portion. The thread of the two threads is locked to the opening edge of the frustoconical portion when the annular stopper is fastened to contact the thin plate.
【０００７】[0007]
【作用】上記構成により、前記ねじの環状ストッパが前
記薄板に当接する締結状態において、前記開口縁に係止
した前記２条のねじ山と前記環状ストッパとにより、前
記薄板に形成された前記円錐台形部を挟み付けるように
して、前記ねじが前記薄板に保持固定される。このと
き、前記円錐台形部の弾性復元力により前記シャンクに
把持力が付与される。また、前記ねじに軸方向の引張り
力が作用すると、前記円錐台形部の開口縁が前記２条の
ねじ山を介して前記シャンクの軸心側に付勢され、前記
円錐台形部による前記シャンクの把持力が増大し、前記
薄板に対する前記ねじの保持力が高められる。With the above structure, in the tightened state in which the annular stopper of the screw is in contact with the thin plate, the cone formed on the thin plate by the two thread threads engaged with the opening edge and the annular stopper. The screws are held and fixed to the thin plate so as to sandwich the trapezoidal portion. At this time, a gripping force is applied to the shank by the elastic restoring force of the truncated cone portion. When an axial tensile force acts on the screw, the opening edge of the truncated cone portion is urged toward the shaft center side of the shank via the two thread threads, and the truncated cone portion of the shank The gripping force is increased, and the holding force of the screw with respect to the thin plate is increased.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は本発明に係る薄板用ねじを示し、図２は該
ねじと金属薄板との結合構造の要部を示している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a thin plate screw according to the present invention, and FIG. 2 shows a main part of a connecting structure of the screw and a metal thin plate.
【０００９】該ねじ１は、２条のねじ山３，３を有する
ストレートシャンク２の先端部に先細の円錐部４が連設
されていると共に、その先端に穴明け手段として錐先部
５が設けられている。なお、仮想線で示すように、錐先
部５に代えてドリル部６を設けてもよい。錐先部５及び
ドリル部６は焼入れ硬化されている。一方、シャンク２
の後端部にはねじ山３の外径より大径の環状ストッパ７
が一体に設けられている。さらに、該環状ストッパ７の
シャンク２とは反対側に軸部８が連設され、該軸部８に
他の部材を結合するための結合手段として雌ねじ体９が
嵌着固定されている。なお、他の部材の結合手段には、
雌ねじ体９の他、図３に示すように、フック１１，雄ね
じ１２，ねじ頭部１３など公知の種々の結合手段を採択
することが考えられる。The screw 1 has a straight shank 2 having two threads 3, 3 and a tapered conical portion 4 which is connected to the tip of the straight shank 2. It is provided. As shown by a virtual line, a drill portion 6 may be provided instead of the tip portion 5. The tip 5 and the drill 6 are hardened by quenching. Meanwhile, shank 2
An annular stopper 7 having a diameter larger than the outer diameter of the thread 3 is provided at the rear end portion.
Are provided integrally. Further, a shaft portion 8 is continuously provided on the side of the annular stopper 7 opposite to the shank 2, and a female screw body 9 is fitted and fixed to the shaft portion 8 as a coupling means for coupling another member. In addition, the coupling means of other members,
In addition to the female screw body 9, as shown in FIG. 3, it is conceivable to adopt various known coupling means such as a hook 11, a male screw 12 and a screw head 13.
【００１０】上記のような構成を有するねじ１は、図２
に示すような状態で金属薄板２０に取付け固定される。
先ず、錐先部５又はドリル部６で薄板２０に穴をあけ、
続いてその開口の周辺部分を円錐部４により膨出させて
円錐台形部２１を形成しながら、２条のねじ山３，３に
よりタッピングを行なうと、円錐台形部２１の開口縁２
２がねじ山３に嵌合する雌ねじ状に成形される。そし
て、環状ストッパ７が薄板２０に当接する結合状態に至
ると、２条のねじ山３，３が開口縁２２に係止され、係
止された２条のねじ山３，３と環状ストッパ７とにより
薄板２０の円錐台形部２１を挟み付けるようにして、ね
じ１が薄板２０に保持固定される。この結合構造によっ
て、ねじ１は、図２に示すＡ，Ｂ，Ｃ，及びＤの４点で
薄板２０に支持固定されると共に、円錐台形部２１の弾
性復元力でシャンク２に把持力が付与され、薄板２０に
対して大きな保持力と強いトルク抵抗が得られる。ま
た、ねじ１に軸方向の引張り力が作用すると、円錐台形
部２１の開口縁２２が、これと係合している２条のねじ
山３，３を介してシャンク２の軸心側に付勢され、その
結果、円錐台形部２１によるシャンク２の把持力が増大
し、薄板２０に対するねじ１の保持力及びトルク抵抗が
一層高められる。The screw 1 having the above structure is shown in FIG.
It is attached and fixed to the metal thin plate 20 in the state as shown in FIG.
First, a hole is made in the thin plate 20 with the conical tip portion 5 or the drill portion 6,
Subsequently, tapping is performed with the two threads 3 and 3 while the peripheral portion of the opening is bulged by the conical portion 4 to form the conical trapezoidal portion 21.
2 is formed in the shape of an internal thread that fits into the thread 3. Then, when the annular stopper 7 reaches the combined state of contacting the thin plate 20, the two threads 3, 3 are locked to the opening edge 22, and the two threads 3, 3 locked and the annular stopper 7 are engaged. The screw 1 is held and fixed to the thin plate 20 by sandwiching the truncated cone portion 21 of the thin plate 20 by. With this connecting structure, the screw 1 is supported and fixed to the thin plate 20 at four points A, B, C, and D shown in FIG. 2, and the gripping force is applied to the shank 2 by the elastic restoring force of the truncated cone portion 21. As a result, a large holding force and a strong torque resistance are obtained for the thin plate 20. Further, when an axial pulling force is applied to the screw 1, the opening edge 22 of the truncated cone portion 21 is attached to the shaft center side of the shank 2 via the two threads 3 and 3 engaging with this. As a result, the gripping force of the shank 2 by the truncated cone portion 21 is increased, and the holding force and the torque resistance of the screw 1 with respect to the thin plate 20 are further enhanced.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
１枚の金属薄板に対してねじを強固に固着することがで
き、大きな保持力とトルク抵抗が得られる。したがっ
て、前記ねじの後部に設けた結合手段を介して他の部材
を取り付ける際に過剰トルクが作用しても、前記ねじが
空転するおそれがなく、また、引張り荷重に対しても強
い抵抗力を発揮する。As described above, according to the present invention,
The screw can be firmly fixed to one metal thin plate, and a large holding force and torque resistance can be obtained. Therefore, even if excessive torque acts when attaching other members via the coupling means provided at the rear portion of the screw, the screw does not run idly, and a strong resistance force against tensile load is also provided. Demonstrate.
【図１】本発明に係る薄板用ねじの正面図である。FIG. 1 is a front view of a thin plate screw according to the present invention.
【図２】本発明によるねじと薄板との結合構造を示す要
部拡大断面図である。FIG. 2 is an enlarged sectional view of an essential part showing a coupling structure of a screw and a thin plate according to the present invention.
【図３】前記ねじの後端部に設ける結合手段の具体例を
示す説明図である。FIG. 3 is an explanatory view showing a specific example of a coupling means provided at the rear end portion of the screw.
１ 薄板用ねじ ２ ストレートシャンク ３ ねじ山 ４ 円錐部 ５ 錐先部 ６ ドリル部 ７ 環状ストッパ ８ 軸部 ９ 雌ねじ体（結合手段） ２０ 金属薄板 ２１ 円錐台形部 ２２ 開口縁 1 Screw for thin plate 2 Straight shank 3 Screw thread 4 Conical part 5 Conical part 5 Drill part 7 Drill part 7 Annular stopper 8 Shaft part 9 Female screw body (coupling means) 20 Metal thin plate 21 Cone trapezoidal part 22 Opening edge
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年３月３１日[Submission date] March 31, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】 上記のような構成を有するねじ１は、図
２に示すような状態で金属薄板２０に取付け固定され
る。先ず、錐先部５又はドリル部６で薄板２０に穴をあ
け、続いてその開口の周辺部分を円錐部４により膨出さ
せて円錐台形部２１を形成しながら、２条のねじ山３，
３によりタッピングを行なうと、円錐台形部２１の開口
縁２２がねじ山３に嵌合する雌ねじ状に成形される。そ
して、環状ストッパ７が薄板２０に当接する結合状態に
至ると、２条のねじ山３，３が開口縁２２に係止され、
係止された２条のねじ山３，３と環状ストッパ７とによ
り薄板２０の円錐台形部２１を挟み付けるようにして、
ねじ１が薄板２０に保持固定される。この結合構造によ
って、ねじ１は、図２に示すＡ，Ｂ，Ｃ，及びＤの４点
で薄板２０に支持固定されると共に、円錐台形部２１の
弾性復元力でシャンク２に把持力が付与され、薄板２０
に対して大きな保持力と強いトルク抵抗が得られる。ま
た、ねじ１に軸方向の引張り力が作用すると、円錐台形
部２１の開口縁２２が、これと係合している２条のねじ
山３，３を介してシャンク２の軸心側に付勢され、その
結果、円錐台形部２１によるシャンク２の把持力が増大
し、薄板２０に対するねじ１の保持力及びトルク抵抗が
一層高められる。なお、図４に示すように環状ストッパ
７と薄板２０との間に厚みの大きい環状スペーサ２３を
介装して、円錐台形部２１の開口縁２２が２条のねじ山
３，３の不完全ねじ部３ａ，３ａに係合するのを防ぐよ
うにすると、一層効果的である。The screw 1 having the above-described structure is attached and fixed to the metal thin plate 20 in the state shown in FIG. First, while drilling a hole in the thin plate 20 with the conical tip portion 5 or the drill portion 6 and subsequently bulging the peripheral portion of the opening by the conical portion 4 to form the truncated cone portion 21, two threads 3 are formed.
When the tapping is performed by 3, the opening edge 22 of the truncated cone portion 21 is formed into a female screw shape that fits the thread 3. Then, when the annular stopper 7 reaches a combined state in which it comes into contact with the thin plate 20, the two threads 3 and 3 are locked to the opening edge 22,
The conical trapezoidal portion 21 of the thin plate 20 is sandwiched between the two threaded threads 3 and 3 and the annular stopper 7 which are locked,
The screw 1 is held and fixed to the thin plate 20. With this coupling structure, the screw 1 is supported and fixed to the thin plate 20 at four points A, B, C, and D shown in FIG. 2, and the gripping force is applied to the shank 2 by the elastic restoring force of the truncated cone portion 21. Thin plate 20
A large holding force and a strong torque resistance can be obtained. Further, when an axial pulling force is applied to the screw 1, the opening edge 22 of the truncated cone portion 21 is attached to the shaft center side of the shank 2 via the two threads 3 and 3 engaging with this. As a result, the gripping force of the shank 2 by the truncated cone portion 21 is increased, and the holding force and the torque resistance of the screw 1 with respect to the thin plate 20 are further enhanced. In addition, as shown in FIG.
7 having a large thickness between the thin plate 20 and the annular spacer 23.
With the insertion, the opening edge 22 of the truncated cone portion 21 has two threads.
Prevents engagement with incomplete threaded parts 3a, 3a of 3, 3
This is even more effective .
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】追加[Correction method] Added
【補正内容】[Correction content]
【図４】 本発明の別の実施例によるねじと薄板との結
合構造を示す要部拡大断面図である。FIG. 4 is an enlarged sectional view of an essential part showing a connecting structure of a screw and a thin plate according to another embodiment of the present invention.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】追加[Correction method] Added
【補正内容】[Correction content]
【図４】 [Figure 4]
Claims (4)
クの先端部に円錐部が連設されると共に、その先端に穴
明け手段が設けられており、 一方、前記シャンクの後端部に前記ねじ山の外径より大
径の環状ストッパが設けられ、かつ前記環状ストッパに
連設した軸部に他の部材の結合手段が設けられているこ
とを特徴とする薄板用ねじ。1. A straight shank having two threads and a conical portion connected to the tip of the straight shank, and a drilling means provided at the tip thereof, while the screw is provided at the rear end of the shank. A screw for a thin plate, characterized in that an annular stopper having a diameter larger than the outer diameter of the mountain is provided, and a coupling means for other members is provided on a shaft portion connected to the annular stopper.
である請求項１記載の薄板用ねじ。2. The screw for a thin plate according to claim 1, wherein the boring means is a conical tip portion or a drill portion.
いはフックである請求項１記載の薄板用ねじ。3. The thin plate screw according to claim 1, wherein the coupling means is a female screw, a male screw, or a hook.
クの先端部に円錐部が連設されると共に、その先端に穴
明け手段が設けられており、 一方、前記シャンクの後端部に前記ねじ山の外径より大
径の環状ストッパが設けられ、かつ前記環状ストッパに
連設した軸部に他の部材の結合手段が設けられており、 前記穴明け手段により金属薄板にあけた開口の周辺部分
を前記円錐部により、膨出させて円錐台形部を形成し、
前記環状ストッパが前記薄板に当接する締結時におい
て、前記２条のねじ山が前記円錐台形部の開口縁に係止
されることを特徴とするねじと薄板との結合構造。4. A straight shank having two threads and a conical portion continuously provided at the tip of the straight shank, and a drilling means provided at the tip thereof, while the screw is provided at the rear end of the shank. An annular stopper having a diameter larger than the outer diameter of the mountain is provided, and the shaft portion connected to the annular stopper is provided with a coupling means for other members, and the periphery of the opening made in the thin metal plate by the punching means. The part is bulged by the conical part to form a truncated cone part,
A connecting structure of a screw and a thin plate, wherein the two thread threads are locked to an opening edge of the truncated cone portion when the annular stopper is fastened to abut the thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4360627A JPH0811965B2 (en) | 1992-12-28 | 1992-12-28 | Connection structure of screws and thin plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4360627A JPH0811965B2 (en) | 1992-12-28 | 1992-12-28 | Connection structure of screws and thin plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06200915A true JPH06200915A (en) | 1994-07-19 |
| JPH0811965B2 JPH0811965B2 (en) | 1996-02-07 |
Family
ID=18470228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4360627A Expired - Fee Related JPH0811965B2 (en) | 1992-12-28 | 1992-12-28 | Connection structure of screws and thin plates |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0811965B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251654A (en) * | 2011-06-01 | 2012-12-20 | Takayuki Sato | Easy-to-attach anchor bolt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272913A (en) * | 1985-09-24 | 1987-04-03 | 若井産業株式会社 | Tapping screw |
-
1992
- 1992-12-28 JP JP4360627A patent/JPH0811965B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272913A (en) * | 1985-09-24 | 1987-04-03 | 若井産業株式会社 | Tapping screw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251654A (en) * | 2011-06-01 | 2012-12-20 | Takayuki Sato | Easy-to-attach anchor bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811965B2 (en) | 1996-02-07 |
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