JPH0618708U - Driving screw - Google Patents
Driving screwInfo
- Publication number
- JPH0618708U JPH0618708U JP6328792U JP6328792U JPH0618708U JP H0618708 U JPH0618708 U JP H0618708U JP 6328792 U JP6328792 U JP 6328792U JP 6328792 U JP6328792 U JP 6328792U JP H0618708 U JPH0618708 U JP H0618708U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- driving screw
- screw
- shank
- continuous
- 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.)
- Pending
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Dowels (AREA)
Abstract
(57)【要約】
【目的】 打込み過ぎによるねじ下穴の径が大きくなり
過ぎることを防止し、ねじ込み後の引抜耐力の低下およ
び緩めトルクの低下を防止できる打込みねじを提供す
る。
【構成】 ねじを形成したシャンク部と、シャンク部の
先端に連続し先細となるテーパ部と、テーパ部の先端に
連続した先端部であって、シャンク部のねじ谷径より小
さい径を有する円柱状のストレート部およびストレート
部の先端に連続する円錐状の先端貫入部から成る先端部
とから成る。
(57) [Abstract] [Purpose] To provide a driving screw that prevents the diameter of a screw pilot hole from becoming too large due to excessive driving, and prevents the pulling resistance after screwing and the loosening torque from decreasing. [Structure] A shank portion having a thread, a taper portion which is continuous and tapered at the tip of the shank portion, and a tip portion which is continuous to the tip of the taper portion and has a diameter smaller than the thread root diameter of the shank portion. It is composed of a columnar straight portion and a tip portion formed of a conical tip penetration portion continuing from the tip of the straight portion.
Description
【０００１】[0001]
本考案は、打込みねじに関し、特に鋼板用打込みねじに関する。 The present invention relates to a driving screw, and more particularly to a driving screw for a steel plate.
【０００２】[0002]
図２に示されているように、従来の鋼板用打込みねじは、ねじ山を備えたシャ ンク部１の前端に、滑らかな表面を有するほぼ円錐状の先端部２を有する。シャ ンク部１のねじは、シャンク部１が先端部２と接続する部分において、２山分程 不完全ねじ部３を形成している。鋼板用打込みねじが下材としてのＣ形鋼と上材 としての木材または石膏ボードとの締結に使用されるときは、例えば、ねじ打込 み締結機により先端部２がＣ形鋼を貫通するほどに鋼板用打込みねじを木材また は石膏ボードの側から打込み、Ｃ形鋼にねじ下穴を開け、その後、ねじ打込み締 結機の回転ビットによって鋼板用打込みねじを回転させ、Ｃ形鋼にねじ孔を形成 しつつ鋼板用打込みねじを木材または石膏ボードとＣ形鋼とにねじ込む。これに より、木材または石膏ボードは、最終的にＣ形鋼に締結される。しかし、鋼板用 打込みねじは、ねじ打込み締結機による打込量を調整または制限する手段を備え ていない。このため、特に、通常板厚（例えば、２．３ｍｍ）のＣ形鋼より薄い （例えば、０．５〜１．２ｍｍ）Ｃ形鋼に木材または石膏ボードを締結するのに 鋼板用打込みねじが使用されるときは、ねじ打込み締結機の側に打込量調整もし くは制限手段が設けられていたとしても、打込み過ぎによってシャンク部１の完 全ねじ部がＣ形鋼を貫通し、それにより、鋼板用打込みねじの引抜き耐力および 緩めトルクの低下等を招いていた。 As shown in FIG. 2, a conventional steel drive screw has a generally conical tip 2 with a smooth surface at the front end of a shank 1 with threads. The screw of the shank portion 1 forms an incomplete thread portion 3 for about two ridges at the portion where the shank portion 1 is connected to the tip portion 2. When a steel plate driving screw is used to fasten a C-shaped steel as a lower material to a wood or gypsum board as an upper material, for example, the tip 2 penetrates the C-shaped steel by a screw driving fastener. The steel plate driving screw is driven in from the side of the wood or gypsum board to make a prepared hole in the C-shaped steel, and then the steel plate driving screw is rotated by the rotating bit of the screw driving fastener to form the C-shaped steel. A steel plate driving screw is screwed into a wood or gypsum board and a C-shaped steel while forming a screw hole. Thereby, the wood or gypsum board is finally fastened to the C-section steel. However, steel plate driving screws have no means for adjusting or limiting the amount of driving by the screw driving fastener. For this reason, especially when fastening wood or gypsum board to C-section steel that is thinner (for example, 0.5 to 1.2 mm) than C-section steel with a normal plate thickness (for example, 2.3 mm), a steel plate driving screw is used. When it is used, even if a driving amount adjusting or limiting means is provided on the side of the screw driving fastener, the complete screw portion of the shank portion 1 penetrates the C-shaped steel due to excessive driving, and As a result, the pulling-out proof strength and the loosening torque of the steel plate driving screw are reduced.
【０００３】[0003]
本考案の目的は、打込み過ぎによるねじ下穴の径が大きくなり過ぎることを防 止し、ねじ込み後の引抜耐力の低下および緩めトルクの低下を防止できる打込み ねじを提供することである。 An object of the present invention is to provide a driving screw that can prevent the diameter of a screw pilot hole from becoming too large due to excessive driving, and can prevent lowering of pulling resistance after screwing and lowering of loosening torque.
【０００４】[0004]
本考案は、ねじを形成したシャンク部と、シャンク部の先端に連続し先細とな るテーパ部と、テーパ部の先端に連続した先端部であって、シャンク部のねじ谷 径より小さい径を有する円柱状のストレート部およびストレート部の先端に連続 する円錐状の先端貫入部から成る先端部とから成る。 The present invention has a shank portion formed with a thread, a taper portion that is continuous and tapered at the tip of the shank portion, and a tip portion that is continuous at the tip of the taper portion and has a diameter smaller than the thread root diameter of the shank portion. The columnar straight portion and the tip portion formed of a conical tip penetrating portion continuous to the tip of the straight portion.
【０００５】[0005]
打込みねじは、打込みの際、先端部がねじ締結材に貫入し、ついで、先端部終 端まで貫入すると、それ以降、テーパ部により急激に径が大きくなるため、貫入 抵抗も急激に大きくなる。これにより、打込みねじは、テーパ部において貫入が 停止される。この結果、打込みにより形成される下穴の径が大きすぎることによ り生ずる打込みねじのねじ込み後の引抜耐力および緩めトルクの低下が防止され る。 When the driving screw is driven, the tip of the driving screw penetrates into the screw fastening material, and when it penetrates to the end of the driving screw, the taper portion rapidly increases the diameter thereafter, and the penetration resistance also rapidly increases. As a result, the penetration of the driving screw is stopped at the tapered portion. As a result, it is possible to prevent the pull-out resistance and the loosening torque of the driving screw after the screwing-in from being lowered due to the diameter of the pilot hole formed by the driving being too large.
【０００６】[0006]
以下、本考案の好適な実施例を添付図面に基づいて詳細に説明する。図１に示 されているように、本考案の一実施例にかかる鋼板用打込みねじ１０は、プラス 溝１１が上面に形成された拡径頭部１２と、拡径頭部１２に連続するシャンク部 １３と、シャンク部１３に連続するテーパ部１４と、テーパ部１４に連続する先 端部１５とから成る。先端部１５は、テーパ部１４に連続するストレート部１５ ａと、ストレート部１５ａに連続する円錐状の先端貫入部１５ｂとに分れる。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 1, a steel plate driving screw 10 according to an embodiment of the present invention includes a diametrical expansion head 12 having a plus groove 11 formed on an upper surface thereof and a shank continuous with the diametrical expansion head 12. It comprises a portion 13, a tapered portion 14 continuous with the shank portion 13, and a front end portion 15 continuous with the tapered portion 14. The tip portion 15 is divided into a straight portion 15a continuous with the tapered portion 14 and a conical tip penetration portion 15b continuous with the straight portion 15a.
【０００７】 上記シャンク部１３には、完全ねじ部が転造により形成されている。テーパ部 １４は、その始端の径がシャンク部１３のねじ谷径に等しく、その終端の径がス トレート部１５ａの径に等しく、ストレート部１５ａに対してほぼ３０゜〜４０ ゜の勾配を有し、また、一山程度の不完全ねじ部１６を有する。本実施例の鋼板 用打込みねじ１０が上材を貫通して下材としての薄いＣ形鋼等に打込まれた場合 、テーパ部１４がＣ形鋼に形成された下穴に嵌合した状態で鋼板用打込みねじ１ ０の打込みが終了するので、不完全ねじ部１６は、従来より短い範囲とすること ができる。ストレート部１５ａは、円柱状であって、その円柱面に縦方向のロー レットが成形されている。これにより、鋼板用打込みねじ１０は、Ｃ形鋼に打込 み易くなる。また、ストレート部１５ａの径は、シャンク部１３のねじ谷径より 小さく設定されている。本実施例では、ストレート部１５ａの径とシャンク部１ ３のねじ谷径との比は、２／３〜１／２である。先端貫入部１５ｂは、シャンク 部１３のねじ山からストレート部１５ａを介して成形されているので、ねじ転造 と同時に転造することができ、鋼板用打込みねじ１０の製造工程を従来よりも一 工程削減する効果を奏する。The shank portion 13 has a completely threaded portion formed by rolling. The taper portion 14 has a starting end diameter equal to the thread root diameter of the shank portion 13 and an ending end diameter equal to the straight portion 15a, and has a slope of approximately 30 ° to 40 ° with respect to the straight portion 15a. In addition, it has an incomplete threaded portion 16 of about one mountain. When the steel plate driving screw 10 of the present embodiment penetrates the upper material and is driven into a thin C-shaped steel or the like as the lower material, the taper portion 14 is fitted in the prepared hole formed in the C-shaped steel. Since the driving of the steel plate driving screw 10 is completed, the incomplete thread portion 16 can be set in a shorter range than in the conventional case. The straight portion 15a has a cylindrical shape, and a knurl in the vertical direction is formed on the cylindrical surface thereof. As a result, the steel plate driving screw 10 is easily driven into the C-shaped steel. The diameter of the straight portion 15a is set smaller than the thread root diameter of the shank portion 13. In this embodiment, the ratio between the diameter of the straight portion 15a and the thread root diameter of the shank portion 13 is 2/3 to 1/2. Since the tip penetration portion 15b is formed from the thread of the shank portion 13 via the straight portion 15a, it can be rolled at the same time as the thread rolling, and the manufacturing process of the steel plate driving screw 10 can be performed more than ever. It has the effect of reducing the number of processes.
【０００８】 上記鋼板用打込みねじ１０を打込み工具を用いて木材または石膏ボードとＣ形 鋼との組合せから成るねじ締結材に打込むときは、先端部１５の終端がＣ形鋼の 表面に達した後、テーパ部１４がＣ形鋼に形成された打込みによる下穴に貫入し ようとすると、貫入抵抗が急激に大きくなるため、テーパ部１４がＣ形鋼の下穴 に嵌合した状態で鋼板用打込みねじ１０の打込みが終了する。これにより、鋼板 用打込みねじ１０の打込み過ぎによる下穴径が大きくなり過ぎるのが防止される 。この結果、鋼板用打込みねじ１０のねじ込み後の引抜耐力および緩めトルクの 低下が防止される。本考案の鋼板用打込みねじは、下材としてのＣ形鋼が通常よ り薄い場合に、特に、効果的である。When the above-described steel plate driving screw 10 is driven into a screw fastener made of a combination of wood or gypsum board and C-shaped steel using a driving tool, the end of the tip portion 15 reaches the surface of the C-shaped steel. After that, if the tapered portion 14 tries to penetrate into the prepared hole formed in the C-shaped steel, the penetration resistance rapidly increases, so that the tapered portion 14 fits into the prepared hole of the C-shaped steel. The driving of the steel plate driving screw 10 is completed. As a result, it is possible to prevent the diameter of the prepared hole from becoming too large due to the excessive driving of the steel plate driving screw 10. As a result, the pulling resistance and the loosening torque of the steel plate driving screw 10 after being screwed in are prevented from decreasing. The steel plate driving screw of the present invention is particularly effective when the C-shaped steel as the lower material is thinner than usual.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の一実施例にかかる鋼板用打込みねじの
側面図である。FIG. 1 is a side view of a steel plate driving screw according to an embodiment of the present invention.
【図２】従来技術にかかる鋼板用打込みねじの側面図で
ある。FIG. 2 is a side view of a steel plate driving screw according to a conventional technique.
１０ 鋼板用打込みねじ １３ シャンク部 １４ テーパ部 １５ 先端部 １５ａ ストレート部 １５ｂ 先端貫入部 10 Steel Plate Driving Screw 13 Shank Part 14 Tapered Part 15 Tip Part 15a Straight Part 15b Tip Penetration Part
───────────────────────────────────────────────────── フロントページの続き (72)考案者 金子 吉広 東京都中央区日本橋箱崎町６番６号 マッ クス株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Yoshihiro Kaneko 6-6, Hakozakicho, Nihonbashi, Chuo-ku, Tokyo Inside Max Co., Ltd.
Claims (2)
部の先端に連続し先細となるテーパ部と、テーパ部の先
端に連続した先端部であって、シャンク部のねじ谷径よ
り小さい径を有する円柱状のストレート部およびストレ
ート部の先端に連続する円錐状の先端貫入部から成る先
端部とから成る打込みねじ。1. A shank portion having a thread, a taper portion which is continuous with the tip of the shank portion and is tapered, and a tip portion which is continuous with the tip of the taper portion and has a diameter smaller than the thread root diameter of the shank portion. A driving screw comprising a cylindrical straight portion and a tip portion formed of a conical tip penetration portion continuous to the tip of the straight portion.
３０゜〜４０゜の勾配を有することを特徴とする請求項
１記載の打込みねじ。2. The driving screw according to claim 1, wherein the tapered portion has a slope of 30 ° to 40 ° with respect to the straight portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328792U JPH0618708U (en) | 1992-08-18 | 1992-08-18 | Driving screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328792U JPH0618708U (en) | 1992-08-18 | 1992-08-18 | Driving screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0618708U true JPH0618708U (en) | 1994-03-11 |
Family
ID=13224964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6328792U Pending JPH0618708U (en) | 1992-08-18 | 1992-08-18 | Driving screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016169859A (en) * | 2015-03-11 | 2016-09-23 | クワンテクス リサーチ インコーポレイテッド | Screw preventing occurrence of crack and burr |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5447954A (en) * | 1977-09-24 | 1979-04-16 | Saito Motoko | Screwnail without thread at tip |
| JPS5610814A (en) * | 1979-07-09 | 1981-02-03 | Max Co Ltd | Driveein screw |
| JPS5813181B2 (en) * | 1974-10-14 | 1983-03-12 | 富士通株式会社 | automatic blood pressure monitoring device |
-
1992
- 1992-08-18 JP JP6328792U patent/JPH0618708U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813181B2 (en) * | 1974-10-14 | 1983-03-12 | 富士通株式会社 | automatic blood pressure monitoring device |
| JPS5447954A (en) * | 1977-09-24 | 1979-04-16 | Saito Motoko | Screwnail without thread at tip |
| JPS5610814A (en) * | 1979-07-09 | 1981-02-03 | Max Co Ltd | Driveein screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016169859A (en) * | 2015-03-11 | 2016-09-23 | クワンテクス リサーチ インコーポレイテッド | Screw preventing occurrence of crack and burr |
| US10054148B2 (en) | 2015-03-11 | 2018-08-21 | Kwantex Research Inc. | Screw for avoiding cracks and burrs |
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