KR20020088891A - Self drill screw nail - Google Patents
Self drill screw nail Download PDFInfo
- Publication number
- KR20020088891A KR20020088891A KR1020010027942A KR20010027942A KR20020088891A KR 20020088891 A KR20020088891 A KR 20020088891A KR 1020010027942 A KR1020010027942 A KR 1020010027942A KR 20010027942 A KR20010027942 A KR 20010027942A KR 20020088891 A KR20020088891 A KR 20020088891A
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- KR
- South Korea
- Prior art keywords
- drill
- drilling
- self
- small
- drilled
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 101150082969 SELP gene Proteins 0.000 description 1
- 101150036293 Selenop gene Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- 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
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- 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
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0021—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being metal, e.g. sheet-metal or aluminium
Abstract
Description
본 발명은 철제 빔(Beam)이나 형강 등을 뚫고 들어가 박히는 셀프 드릴 나사못에 관한 것으로써, 더욱 상세히는 몸체 선단의 드릴부를 작은 구경의 드릴부와큰 구경의 기존 드릴부로 단턱지게 형성하여 철제 빔이나 형강 등에 박을 때 선단의 작은 드릴부가 먼저 작은 구멍을 뚫으면 그 작은 구멍을 큰 구경의 드릴부가 곧바로 큰 구멍으로 뚫은 다음 나선부가 박히므로 작업자가 많은 량을 힘들이지 않고서도 손쉽게 박을 수 있는 셀프 드릴 나사못에 관한 것이다.The present invention relates to a self-drilling screw that penetrates and penetrates a steel beam (Beam) or section steel, etc. More specifically, the drill portion of the body end is formed to be stepped into a drill portion of a small diameter and the existing drill portion of a large diameter to form a steel beam or When the small drill part of the tip drills a small hole first when drilling into the steel, etc., the small hole is drilled directly into the large hole, and then the spiral part gets lodged, so that the worker can easily drive a large amount without effort. It is about a drill screw.
일반적으로 보통의 나사못은 뾰죽한 선단을 아무리 열처리 하여도 철제 빔이나 형강 등에는 쉽게 박히지 못하고 선단이 무뎌지게 된다. 그리고, 철제의 피접합물이 아니더라도 단단한 나무 등에 일반 나사못을 박으려면 쉽게 들어가지 않으므로 작업자가 상당한 힘을 가하면서 박아야만 하였다.In general, the average screw is hard to be nailed to the steel beam or beam, even if the heat treatment of the pointed tip is blunt tip. And, even if it is not a metal to be welded, it is not easy to put a common screw on a solid wood, so the operator had to put it with considerable force.
따라서, 상기 철제 빔이나 형강 등과 같이 상당히 단단한 피접합물을 쉽게 뚫고 관통하여 체결할 수 있도록 선단이 드릴형으로 된 셀프 드릴 나사못(Selp drill screws)이 개발되었으며, 철골조물을 시공하는 현장에서 용접방법을 사용하지 않는 부위의 골조들은 대부분 상기 드릴 나사못으로 간편하게 체결하여 접합하고 있는 실정이다.Therefore, self-drilled screws (Selp drill screws) of which the tip is drilled have been developed to easily penetrate and fasten a fairly hard to-be-joined material such as the steel beam or the shaped steel, and a welding method in the field of constructing steel frameworks. Most of the frame does not use the situation is to be joined by simply fastening with the drill screw.
이러한 종래의 셀프 드릴 나사못 구조를 살펴보면 대부분 도 1 에서와 같이 선단의 드릴부(A)는 몸체(10) 구경과 같은 구경인 상태에서 양쪽이 대칭되게 칼날면 (20)과 칩배출면(21)이 "∨" 자를 이루고 있으며, 상기 드릴부(A) 위로는 구경이 약간 더 큰 나선부(11)가 형성되어 있어서 철제 빔이나 형강 등에 박을 때 선단의 드릴부(A)가 몸체(10)와 같은 구경의 구멍을 형성하면 나선부(11)가 그 구멍에 탭을 형성하면서 들어가 박히도록 되어 있다.Looking at such a conventional self-drilling screw structure, as shown in Figure 1 most of the drill portion (A) of the front end in the same diameter as the diameter of the body 10, both sides of the blade surface 20 and the chip discharge surface 21 symmetrically This "∨" is formed, and the drill portion (A) has a slightly larger diameter spiral portion 11 is formed on the drill portion (A) when the drill portion (A) of the tip when embedded in the steel beam or section steel body (10) When the hole of the diameter is formed, the spiral part 11 enters and is stuck while forming a tab in the hole.
그런데, 이러한 종래의 셀프 드릴 나사못은 철제 빔이나 형강 등에 박을 때드릴부(A)가 단번에 몸체(10)와 같은 구경의 구멍을 뚫고 들어가야 하므로 상당한 힘이 소요되었으며, 특히 길이가 15 ~ 20 Cm 정도로 상당히 긴 셀프 드릴 나사못은 몇개만 박아도 작업자가 힘들어하기 때문에 작업능률이 떨어지고, 이로 인해 여러사람들이 교대로 작업하여야 하므로 인력소모가 많은 문제점이 있다.By the way, such a conventional self-drilling screw was required to drill a hole of the same diameter as the body 10 at a time when the drill portion (A) at a time to be embedded in an iron beam or a section steel, it takes a considerable force, especially 15 ~ 20 Cm in length Self-drill screws that are quite long enough to reduce the work efficiency because it is difficult for the operator to put a few, this is a problem that requires a lot of people to work alternately, manpower consumption.
그리고, 종래의 셀프 드릴 나사못은 도 2 의 평단면도에서와 같이 양쪽 칼날면(20)과 칩배출면(21)이 서로 접하는 중심부위(22)가 둔각으로 각진 형상을 이루고 있기 때문에 칼날면(20)이 피접합물을 절삭하여 파고 들어갈 때 생기는 칩이 각진 중심부위(22)에 걸려 쉽게 절단되면서 칩배출면(21)으로의 칩배출이 원활하지 못함에 따라 칩이 배출될 때의 마찰계수가 상대적으로 높아 셀프 드릴 나사못을 박을 때 더 많은 힘을 가하여야 하고 박히는 시간이 오래 걸리는 문제점이 있다.In the conventional self-drilling screw, as shown in the cross-sectional view of FIG. 2, the blade surface 20 is formed at an obtuse angle at the center portion 22 where both the blade surface 20 and the chip discharge surface 21 contact each other. The friction coefficient when the chip is discharged due to the chip ejection to the chip ejection surface 21 is not easy due to the chip generated when the chip is cut into the object to be cut and easily caught. Relatively high, when applying a self-drilling screw has to apply more force and there is a problem that takes a long time.
따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 개발된 것으로서, 본 발명의 목적은 피접합물에 박을 때 드릴부가 피접합물에 구멍을 쉽게 형성토록 하고 칩 배출이 원활하게 되도록 하여 작업자가 큰 힘을 들이지 않고서도 철제 빔이나 형강 등에 쉽게 박을 수 있는 셀프 드릴 나사못을 제공하는데 있다.Accordingly, the present invention has been developed to solve the above-mentioned conventional problems, the object of the present invention is to make the drill portion to easily form a hole in the to-be-welded object when chipping in the to-be-welded material, and to smoothly discharge chips. It is to provide a self-drilling screw that can be easily embedded in steel beams or section steels without a great deal of effort.
이러한 본 발명은 상기 목적을 달성하기 위해 기존 드릴부 끝단에 구경이 작은 드릴부를 단턱지게 형성하고, 상기 단턱진 드릴부의 양쪽 칼날면과 칩배출면이 서로 접하는 중심 부위를 둥글게 만곡부로 형성하여 셀프 드릴 나사못을 구성함으로서 달성되는 것이다.In order to achieve the above object, the present invention forms a drill part having a small diameter at the end of an existing drill part, and forms a central portion where both blade surfaces and the chip discharge surface of the stepped drill part are in contact with each other as rounded curved portions. This is achieved by constructing screws.
이와 같은 본 발명은 철구조물을 접합하기 위해 셀프 드릴 나사못을 박을 때 선단의 작은 드릴부가 먼저 작은 구멍을 뚫은 다음 곧바로 큰 구경의 기존 드릴부가 통과하므로 쉽게 큰 구멍으로 뚫려서 정확한 위치에 힘들이지 않고 신속하게 박을 수 있으며, 이때 발생하는 칩은 칼날면과 칩배출면 사이의 만곡부에 의해 종래처럼 잘게 절단되지 않고 코일형태로 길게 감기면서 배출되므로 마찰계수가 낮아 나사못을 박을 때의 힘이 훨씬 덜 들고 빨리 박힘에 따라 인력과 공사비 절감의 효과가 크므로 상기 목적을 효과적으로 달성할 수 있다.In the present invention, when drilling a self-drilling screw to join a steel structure, the small drill part of the tip first drills a small hole, and then immediately passes through the existing drill part of a large diameter, so it is easily drilled into a large hole and quickly and effortlessly in the correct position. In this case, the chip generated is discharged while being wound in the form of a coil without being cut finely as before by the bent portion between the blade surface and the chip discharge surface, so the friction coefficient is much lower and the force when screwing is much less. Since the effect of reducing the manpower and the construction cost according to the lifting and fastening can be achieved effectively the above purpose.
도 1 은 종래의 셀프 드릴 나사못 구조를 보인 정면도1 is a front view showing a conventional self drill screw structure
도 2 는 도 1 의 B - B' 선 단면도FIG. 2 is a cross-sectional view taken along the line B-B 'of FIG. 1
도 3 은 본 발명이 실시된 셀프 드릴 나사못을 일례로 보인 정면도Figure 3 is a front view showing an example of the self-drilling screw according to the present invention
도 4 는 도 3 의 X - X' 선 단면도4 is a cross-sectional view taken along the line X-X 'of FIG.
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
100 : 몸체 110 : 나선부100: body 110: spiral portion
A1 : 작은 드릴부 A2 : 기존 드릴부A1: small drill part A2: conventional drill part
120 : 칼날면 121 : 칩배출면120: blade surface 121: chip discharge surface
122 : 만곡부122: curved portion
이하, 본 발명의 상기 목적을 효과적으로 달성할 수 있는 바람직한 실시예의 기술구성 및 작용을 첨부한 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings the technical configuration and operation of a preferred embodiment that can effectively achieve the above object of the present invention.
도 3 은 본 발명이 실시된 셀프 드릴 나사못을 일례로 예시한 정면도로서, 이에 도시된 본 발명의 구성중 외주면에 나선부(110)가 형성된 몸체(100)와 같은 구경으로 양쪽에 "∨" 자형의 칼날면(120)과 칩배출면(121)이 대칭으로 형성된 드릴부를 상기 몸체(100) 선단에 형성한 것은 종래의 셀프 드릴 나사못과 같다고 할 수 있다.Figure 3 is a front view illustrating an example of the self-drilling screw according to the present invention, the configuration of the present invention shown in the "caliber" on both sides with the same diameter as the body 100, the spiral portion 110 is formed on the outer peripheral surface The blade surface 120 and the chip discharge surface 121 of the drill portion formed symmetrically formed at the tip of the body 100 can be said to be the same as the conventional self-drilling screw.
본 발명의 구성상 특징은 기존 드릴부(A2) 선단을 구경이 작은 드릴부(A1)로 단턱지게 형성하여 빔이나 형강 등에 박을 때 선단의 작은 드릴부(A1)가 먼저 작은 구멍을 뚫으면 그 작은 구멍을 큰 구경의 기존 드릴부(A2)가 곧바로 큰 구멍으로 뚫은 다음 나선부(110)가 박히도록 한 것에 있다.When the small drill part A1 of the tip is drilled into a small hole when the tip of the existing drill part A2 is formed to be stepped into a drill part A1 having a small diameter, and the beam is drilled into the steel, etc. The small hole is drilled into a large hole in the existing drill portion A2 of a large diameter immediately, and then the spiral portion 110 is embedded.
그리고, 도 4 는 도 3 의 X-X'선 단면도로서, 이에 도시된 바와 같이 본 발명의 셀프 드릴 나사못은 상기 드릴부(A1)(A2)의 양쪽 칼날면(120)과 칩배출면(121)이 서로 접하는 중심 부위를 칼날면(120)쪽에서 칩배출면(121)을 향해 둥글게 만곡부 (122)로 형성한 것을 특징으로 한다.And, Figure 4 is a cross-sectional view taken along the line X-X 'of Figure 3, the self-drilling screw of the present invention as shown in the two blade surface 120 and the chip discharge surface 121 of the drill portion (A1) (A2) ) Is a center portion that is in contact with each other is formed as a curved portion 122 rounded toward the chip discharge surface 121 from the blade surface 120 side.
이와 같이 형성된 본 발명의 셀프 드릴 나사못은 철제 빔(Beam)과 빔, 또는 형강 등의 철구조물을 서로 접합할 때 핸드 드릴에 꽂아 작업하는 것은 종래와 같다. 그런데, 본 발명의 셀프 드릴 나사못은 접합작업때 선단의 작은 드릴부(A1)가 먼저 피접합물에 작은 구멍을 뚫고 들어가게 되므로 작업자가 그리 큰 힘을 가하지 않아도 선단부가 쉽게 들어가 박히는 잇점이 있다.The self-drilling screw of the present invention formed as described above is conventionally connected to a hand drill when joining steel structures such as steel beams and beams or beams to each other. By the way, the self-drilling screw of the present invention has the advantage that the small drill portion (A1) of the tip at the time of joining work first penetrates a small hole in the object to be joined, so that the tip is easily inserted and stuck without the operator applying a great force.
그리고, 상기와 같이 작은 드릴부(A1)가 작은 구멍을 형성하면서 들어가 박히면 곧바로 큰 구경의 기존 드릴부(A2)가 작은 구멍에 접촉되면서 그 작은 구멍을 큰 구멍으로 뚫으면서 들어가므로 종래처럼 기존 드릴부(A2) 만으로 한번에 큰 구경의 구멍을 뚫고 들어가게 하는 것에 비하여 훨씬 힘이 덜 들고, 구멍을 뚫을 때 나사못의 흔들림이 적어서 종래에 비해 접합위치에 보다 정확하게 박을 수 있는 잇점도 있다.When the small drill part A1 enters and is formed while forming a small hole as described above, the existing drill part A2 having a large diameter immediately enters while drilling the small hole into a large hole while contacting the small hole. Compared to having to drill a large diameter hole at a time with only the drill portion (A2) is much less power, there is an advantage that can be more accurately put in the joint position compared to the prior art because the less shaking of the screw when drilling a hole.
또한, 본 발명은 양쪽 칼날면(120)과 칩배출면(121)의 중심부위가 칼날면 (120) 쪽에서 칩배출면(121)을 향해 둥글게 만곡부(122)로 형성되어 있으므로 작은 드릴부(A1)와 기존 드릴부(A2)의 칼날면(120)이 피접합물을 절삭하여 파고 들어갈 때 생기는 칩이 상기 중심의 만곡부(122)에 의해 코일형태로 쉽게 감기면서 나선부 (110)의 나선홈을 따라 배출되므로 배출될 때의 마찰계수가 낮아 나사못을 박을 때힘이 훨씬 덜 들고 빨리 박히게 되는 잇점이 있다.In addition, in the present invention, since the centers of both the blade surface 120 and the chip discharge surface 121 are formed as the curved portion 122 rounded toward the chip discharge surface 121 from the blade surface 120 side, the small drill portion A1 is provided. ) And the chip surface generated when the blade surface 120 of the existing drill part A2 is cut into the workpiece to be dug into the coil shape by the central curved part 122 while being easily wound in a spiral groove of the spiral part 110. Since the frictional coefficient at the time of discharge is low, the force of the screw is much less and it is driven faster.
이상에서와 같이 본 발명은 몸체 선단의 드릴부를 작은 구경의 드릴부와 큰 구경의 기존 드릴부로 단턱지게 형성하여 철제 빔이나 형강 등의 철구조물을 접합하기 위해 박을 때 선단의 작은 드릴부가 먼저 작은 구멍을 뚫으면 곧바로 큰 구경의 기존 드릴부가 통과하면서 큰 구멍으로 뚫어 나선부가 쉽게 박히게 되므로 정확한 위치에 힘들이지 않고 신속하게 박을 수 있는 효과가 있다.As described above, in the present invention, the drill part of the tip of the body is formed to be drilled into the drill part of the small diameter and the existing drill part of the large diameter so that the small drill part of the tip is small when it is put together to join the steel structure such as the steel beam or the shaped steel. As soon as the hole is drilled, the existing drill part of the large diameter passes immediately, and the spiral part is easily punched into the large hole, so that it can be quickly and effortlessly inserted into the correct position.
아울러 양쪽 칼날면과 칩배출면이 서로 만나는 중심의 만곡부에 의해 피접합물을 파고 들어갈 때 발생하는 칩이 종래처럼 잘게 절단되지 않고 코일형태로 길게 감기면서 배출되므로 칩 배출때의 마찰계수가 낮아 나사못을 박을 때 힘이 훨씬 덜 들고 빨리 박히게 됨에 따라 인력절감과 공사기간의 단축에 의해 공사비를 상당히 절감할 수 있는 효과도 있다.In addition, since the chip generated when digging into the joined object by the center curved portion where both the blade surface and the chip discharge surface meet each other is discharged while being wound in a coil shape instead of being finely cut as in the prior art, the coefficient of friction at the time of chip discharge is low. As they are driven much less quickly and are driven faster, the cost of construction can be considerably reduced by reducing manpower and shortening the construction period.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010027942A KR20020088891A (en) | 2001-05-22 | 2001-05-22 | Self drill screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010027942A KR20020088891A (en) | 2001-05-22 | 2001-05-22 | Self drill screw nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020088891A true KR20020088891A (en) | 2002-11-29 |
Family
ID=27705849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010027942A KR20020088891A (en) | 2001-05-22 | 2001-05-22 | Self drill screw nail |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020088891A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5049557A (en) * | 1973-07-18 | 1975-05-02 | ||
| JPS51141953A (en) * | 1975-05-31 | 1976-12-07 | Yoshio Murata | Bolt |
| KR920019816U (en) * | 1991-04-15 | 1992-11-17 | 와까이 산교오 가부시끼가이샤 | Tapping screw |
| US5882161A (en) * | 1994-11-11 | 1999-03-16 | Ejot Verbindungstechnik Gmbh & Co. | Self-drilling and thread-forming screw having a flow-forming section |
| JPH11148506A (en) * | 1997-11-14 | 1999-06-02 | Nitto Seiko Co Ltd | Drill tapping screw of austenite base stainless steel |
-
2001
- 2001-05-22 KR KR1020010027942A patent/KR20020088891A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5049557A (en) * | 1973-07-18 | 1975-05-02 | ||
| JPS51141953A (en) * | 1975-05-31 | 1976-12-07 | Yoshio Murata | Bolt |
| KR920019816U (en) * | 1991-04-15 | 1992-11-17 | 와까이 산교오 가부시끼가이샤 | Tapping screw |
| US5882161A (en) * | 1994-11-11 | 1999-03-16 | Ejot Verbindungstechnik Gmbh & Co. | Self-drilling and thread-forming screw having a flow-forming section |
| JPH11148506A (en) * | 1997-11-14 | 1999-06-02 | Nitto Seiko Co Ltd | Drill tapping screw of austenite base stainless steel |
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