JPH04119618U - self drilling screw - Google Patents
self drilling screwInfo
- Publication number
- JPH04119618U JPH04119618U JP2501391U JP2501391U JPH04119618U JP H04119618 U JPH04119618 U JP H04119618U JP 2501391 U JP2501391 U JP 2501391U JP 2501391 U JP2501391 U JP 2501391U JP H04119618 U JPH04119618 U JP H04119618U
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- drill
- drill part
- drilling
- self
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 239000004566 building material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0084—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by geometric details of the tip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Drilling Tools (AREA)
Abstract
(57)【要約】
【目的】 軽量型鋼へのねじ込み時における穿孔が小さ
な押し込み力で行なえるようにする。
【構成】 ねじ軸部２の先端に設けたドリル部４を、大
径のドリル部５と小径のドリル部６によって、先端に向
けて有段状に小径となる多段に形成し、穿孔を先ず小径
のドリル部６で行ない、続いて大径のドリル部５が切削
を行うことにより、穿孔が小さな押し込み力で行なえ
る。
(57) [Summary] [Purpose] To enable drilling with small pushing force when screwing into lightweight steel. [Structure] The drill part 4 provided at the tip of the screw shaft part 2 is formed into a multi-stage structure with a large-diameter drill part 5 and a small-diameter drill part 6 that become smaller in diameter in a stepwise manner toward the tip. By performing cutting with the small-diameter drill part 6 and then cutting with the large-diameter drill part 5, drilling can be performed with a small pushing force.
Description
【０００１】0001
この考案は、軽量型鋼に建材や器材を取り付けるために使用するセルフドリリ ングビスに関する。 This idea is a self-drilling machine used to attach building materials and equipment to lightweight steel. Regarding Ngbis.
【０００２】0002
建材や器材を軽量型材に取付けるために使用されている従来のセルフドリリン グビスはねじ軸部の先端に設けたドリル部がねじ軸部とほぼ等しい直径に形成さ れた構造になっていた。 Traditional self-drilling used to attach building materials and equipment to lightweight profiles The drill part provided at the tip of the screw shaft has a diameter that is approximately the same as that of the screw shaft. It had a rough structure.
【０００３】0003
ところで、軽量型鋼にセルフドリリングビスをねじ込むときの穿孔には、ドリ ル部の直径に比例した切削トルクが必要になり、ねじ軸部の径が太くなると押し 込み力を強くしなければならず、押し込み力が弱いとドリル部が軽量型鋼を貫通 するに足りる十分な力が得られず、空回りを起こしたり、ドリル部先端が焼けた りして、セルフドリリングビスとしての機能が果せないという問題が生じる。 By the way, when drilling a self-drilling screw into lightweight steel, a drill is used. A cutting torque proportional to the diameter of the screw shaft is required, and as the diameter of the screw shaft increases, The pushing force must be strong; if the pushing force is weak, the drill part will penetrate the lightweight steel. The drill may spin idly or the tip of the drill may become burnt due to insufficient force. Therefore, the problem arises that it cannot function as a self-drilling screw.
【０００４】 そこでこの考案は、軽量型鋼に対するねじ込みが、ねじ軸部の直径に応じた押 し込み力よりも弱い押し込み力で行え、ドリル部の空回りや焼付きの発生がなく 、建材や器材の取付けが簡単に能率よく行なえるセルフドリリングビスを提供す ることを課題としている。0004 Therefore, this idea was developed so that screwing into lightweight steel can be done using a force that corresponds to the diameter of the screw shaft. This can be done with a push-in force that is weaker than the push-in force, and there is no idle rotation or seizure of the drill part. We provide self-drilling screws that allow you to easily and efficiently install building materials and equipment. The challenge is to
【０００５】[0005]
上記のような課題を解決するため、この考案は、セルフドリリングビスのドリ ル部を、先端に向けて有段状に小径となるよう多段に形成した構成を採用したも のである。 In order to solve the above-mentioned problems, this invention is a self-drilling screw drill. This model adopts a structure in which the diameter of the ring part is formed in multiple stages so that the diameter becomes smaller in steps toward the tip. It is.
【０００６】[0006]
【作用】 軽量型鋼に対してセルフドリリングビスをねじ込むとき、先ずドリル部の最先 端に位置する小径のドリル部が軽量型鋼を切削し、次に小径ドリル部が貫通する と続いて大径のドリル部が切削を始め、貫通孔を穿孔するとこの貫通孔にねじ軸 部がねじ込まれて行く。 穿孔時において、最初は小径のドリル部で切削するため、ドリル部が小径の分 だけ押し込み力が小さくてすみ、ねじ軸部の径が太くても弱い力でねじ込むこと ができる。[Effect] When screwing a self-drilling screw into lightweight steel, first The small diameter drill part located at the end cuts the lightweight steel, and then the small diameter drill part penetrates. Next, the large diameter drill part starts cutting, and when the through hole is drilled, the screw shaft is inserted into this through hole. The parts are screwed in. When drilling, the drill part is initially cut with a small diameter, so the drill part has a small diameter. The pushing force is small, so even if the diameter of the screw shaft is thick, it can be screwed in with a weak force. I can do it.
【０００７】[0007]
以下、この考案の実施例を添付図面に基づいて説明する。 Hereinafter, embodiments of this invention will be described based on the accompanying drawings.
【０００８】 図１のように、セルフドリリングビス１は、ねじ軸部２の一端側に頭部３を設 け、他端側にドリル部４を設けて形成されている。 上記ドリル部４は図１乃至図３に示すように、先端に向けて有段状に小径とな るよう多段に形成されている。[0008] As shown in Fig. 1, the self-drilling screw 1 has a head 3 on one end side of the screw shaft 2. It is formed with a drill portion 4 provided on the other end side. As shown in FIGS. 1 to 3, the drill portion 4 has a smaller diameter in a stepped manner toward the tip. It is formed in multiple stages so that the
【０００９】 具体的には、ねじ軸部２の先端側にこのねじ軸部２と同径状となって連なる大 径のドリル部５と、この大径のドリル部５の先端に同軸心状となって連なる小径 のドリル部６とからなり、小径のドリル部６の先端は円錐形の先鋭端になってい ると共に、小径のドリル部６から大径のドリル部５にわたる外面の両側に刃溝７ が設けられている。[0009] Specifically, on the distal end side of the screw shaft portion 2, there is a large diameter that is continuous and has the same diameter as the screw shaft portion 2. a small diameter drill part 5 and a small diameter drill part 5 coaxially connected to the tip of the large diameter drill part 5. The small diameter drill part 6 has a conical sharp tip. At the same time, there are blade grooves 7 on both sides of the outer surface extending from the small diameter drill part 6 to the large diameter drill part 5. is provided.
【００１０】 図示の場合、大径のドリル部５は短くし、刃溝７の内端がねじ軸部２のねじ山 ８に達して分断した例を示したが、大径のドリル部５を長く形成し、刃溝７がね じ山８に達しないようにしてもよい。 また、大径のドリル部５と小径のドリル部６の直径差は、任意に設定できるが 、直径差の好ましい例としては、大径のドリル部５が直径６mmの場合、小径のド リル部６は直径４mm〜４.5mmとする。0010 In the case shown, the large diameter drill part 5 is shortened, and the inner end of the blade groove 7 is the threaded thread of the screw shaft part 2. 8 is shown, but the large diameter drill part 5 is formed long and the blade groove 7 is It may be arranged so that it does not reach the peak 8. Further, the diameter difference between the large diameter drill part 5 and the small diameter drill part 6 can be set arbitrarily. As a preferable example of the diameter difference, if the large diameter drill part 5 is 6 mm in diameter, the small diameter drill part 5 is 6 mm in diameter. The diameter of the rill portion 6 is 4 mm to 4.5 mm.
【００１１】 なお、頭部３はドライバーの係合溝９を設けた形状を図示したが、六角頭部を 採用してもよいと共に、ドリル部４は三段以上の多段に形成してもよい。[0011] Although the head 3 is shown with a screwdriver engagement groove 9, a hexagonal head is shown. Alternatively, the drill portion 4 may be formed in three or more stages.
【００１２】 この考案のセルフドリリングビスは上記のような構成であり、軽量型鋼に建材 や器材を取付けるために使用され、ねじ込み時には、ドリル部４の先端側に位置 する小径のドリル部６が軽量型鋼を切削し、小径のドリル部６が貫通すると続い て大径のドリル部５が切削を始め、これによって軽量型鋼に貫通孔を穿設し、こ の貫通孔にねじ軸部２がねじ切りを行いながらねじ込まれる。0012 The self-drilling screw of this invention has the above-mentioned configuration and is suitable for lightweight steel and building materials. It is used for attaching tools and equipment, and is located on the tip side of the drill part 4 when screwing. The small diameter drill part 6 cuts the lightweight steel, and when the small diameter drill part 6 penetrates, the process continues. The large diameter drill part 5 starts cutting, thereby drilling a through hole in the lightweight steel. The screw shaft portion 2 is screwed into the through hole while cutting the thread.
【００１３】 上記のようなセルフドリリングビス１のねじ込み時における穿孔において、ド リル部４を多段構造とすることにより、押し込み力を分散して小さくできるとい う点について説明する。[0013] In drilling when screwing in the self-drilling screw 1 as described above, the driver By making the rill part 4 have a multi-stage structure, it is possible to disperse and reduce the pushing force. The following points will be explained.
【００１４】 例えば直径６mmのドリルで軽量型鋼に貫通孔を穿けるのに１００の力が必要だ とするのに作業者が７０の力しかなければ、軽量型鋼を貫通するに足りる十分な 力が得られず、空回りを起こしたり、ドリル先端が焼けたりするが、直径４mmの ドリルを用いれば４４の力で貫通させられる。そして直径４mmの貫通孔が開いた 後、直径６mmのドリルを用いれば５４の力で貫通させる事ができる。[0014] For example, it takes a force of 100 to drill a through hole in lightweight steel with a 6mm diameter drill. If the operator only has a force of 70, it is enough to penetrate the lightweight steel. The force is not obtained, the drill spins idly, and the tip of the drill burns, but the 4mm diameter If you use a drill, you can penetrate it with a force of 44. A through hole with a diameter of 4 mm was then opened. After that, if you use a drill with a diameter of 6 mm, you can penetrate it with a force of 54.
【００１５】 軽量型鋼に直径６mmの貫通孔を開ける事が出来なかった作業者及び状況でも、 小径のドリルから順次大径のドリルに交換すれば、１行程で貫通孔は開けられな くともタッピングビスでの建材、器材の取り付けが可能である。しかし、行程数 が増える事は、作業時間が増し、大きな損失となるため、１本のセルフドリリン グビス１のドリル部４を先端に向け段々に小径にした多段に形成したことにより 、ドリル部先端側の小径のドリル部６が軽量型鋼を切削し、小径のドリル部６が 貫通すると、続いて大径のドリル部５が切削を始めて貫通孔を穿設し、１行程で セルフドリリングビス１での建材、器材の取り付けが可能になった。[0015] Even for workers and situations where it was not possible to drill a 6mm diameter through hole in lightweight steel, If you replace the small-diameter drill with a large-diameter drill one by one, you will not be able to drill a through hole in one stroke. It is possible to attach building materials and equipment using tapping screws. However, the number of strokes An increase in the amount of work required will result in an increase in work time and a large loss, so one self-drilling By forming the drill part 4 of the Gubis 1 in multiple stages with the diameter gradually becoming smaller toward the tip. , the small diameter drill part 6 on the tip side of the drill part cuts the lightweight steel, and the small diameter drill part 6 Once the hole is penetrated, the large-diameter drill part 5 then begins cutting and drills the through hole in one stroke. It is now possible to install building materials and equipment with self-drilling screw 1.
【００１６】[0016]
【効果】 以上のように、この考案によると、セルフドリリングビスにおけるドリル部を 先端に向け有段状に小径となる多段に形成したので、軽量型鋼に対するねじ込み 時の穿孔が小さな押し込み力で可能となり、空回りを起こしたりドリル部先端が 焼けたりすることがなく、１行程で建材や器材の取り付けが行なえる。【effect】 As mentioned above, according to this invention, the drill part of the self-drilling screw can be It is formed in multiple steps with a smaller diameter towards the tip, making it easy to screw into lightweight steel. Drilling at the time is possible with a small pushing force, which prevents the tip from spinning or the tip of the drill part. Building materials and equipment can be installed in one step without burning.
【図１】この考案に係るセルフドリリングビスの正面図[Figure 1] Front view of the self-drilling screw according to this invention
【図２】同上のドリル部を示す底面図[Figure 2] Bottom view showing the drill part same as above
【図３】ドリル部の斜視図[Figure 3] Perspective view of drill part
１ セルフドリリングビス ２ ねじ軸部 ３ 頭部 ４ ドリル部 ５ 大径のドリル部 ６ 小径のドリル部 ７ 刃溝 1 Self-drilling screw 2 Screw shaft part 3 Head 4 Drill part 5 Large diameter drill part 6 Small diameter drill part 7 Blade groove
Claims (1)
端に向けて有段状に小径となるよう多段に形成したこと
を特徴とするセルフドリリングビス。1. A self-drilling screw characterized in that the drill portion of the self-drilling screw is formed in multiple stages so that the diameter becomes smaller in a stepped manner toward the tip.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2501391U JPH04119618U (en) | 1991-04-15 | 1991-04-15 | self drilling screw |
| AU82749/91A AU642288B2 (en) | 1991-04-15 | 1991-08-27 | Tapping screw |
| US07/750,488 US5120172A (en) | 1991-04-15 | 1991-08-27 | Tapping screw |
| AT91307892T ATE124504T1 (en) | 1991-04-15 | 1991-08-28 | SELF-DRILLING SCREW. |
| DE69110863T DE69110863T2 (en) | 1991-04-15 | 1991-08-28 | Self-drilling screw. |
| EP91307892A EP0509173B1 (en) | 1991-04-15 | 1991-08-28 | Tapping screw |
| KR2019910014845U KR0125199Y1 (en) | 1991-04-15 | 1991-09-12 | Tapping screw |
| CA002051848A CA2051848C (en) | 1991-04-15 | 1991-09-19 | Tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2501391U JPH04119618U (en) | 1991-04-15 | 1991-04-15 | self drilling screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04119618U true JPH04119618U (en) | 1992-10-26 |
Family
ID=31909831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2501391U Pending JPH04119618U (en) | 1991-04-15 | 1991-04-15 | self drilling screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04119618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102019302B1 (en) * | 2018-07-16 | 2019-09-06 | 경북대학교 산학협력단 | Connection member for masonry structure using the self drilling screw, construction method for masonry structure using the connection member and masonry structure comprising the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51141953A (en) * | 1975-05-31 | 1976-12-07 | Yoshio Murata | Bolt |
-
1991
- 1991-04-15 JP JP2501391U patent/JPH04119618U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51141953A (en) * | 1975-05-31 | 1976-12-07 | Yoshio Murata | Bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102019302B1 (en) * | 2018-07-16 | 2019-09-06 | 경북대학교 산학협력단 | Connection member for masonry structure using the self drilling screw, construction method for masonry structure using the connection member and masonry structure comprising the same |
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