DE102010041165A1 - Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw - Google Patents
Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw Download PDFInfo
- Publication number
- DE102010041165A1 DE102010041165A1 DE102010041165A DE102010041165A DE102010041165A1 DE 102010041165 A1 DE102010041165 A1 DE 102010041165A1 DE 102010041165 A DE102010041165 A DE 102010041165A DE 102010041165 A DE102010041165 A DE 102010041165A DE 102010041165 A1 DE102010041165 A1 DE 102010041165A1
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- DE
- Germany
- Prior art keywords
- screw
- cutting edges
- drilling
- drilling screw
- drill
- 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.)
- Ceased
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract 3
- 238000005553 drilling Methods 0.000 title claims description 29
- 238000002407 reforming Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- F16B25/0036—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/56—Making machine elements screw-threaded elements
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Drilling Tools (AREA)
Abstract
Description
Die Erfindung geht aus von einer Bohrschraube, also einer Schraube, die sich ihr Loch selbst bohrt und in dem gebohrten Loch dann auch noch das Gewinde formt.The invention is based on a drill, so a screw that drills its own hole and then also forms the thread in the drilled hole.
Bohrschrauben dieser Art sind seit langem bekannt. Eine bekannte selbstbohrende und gewindeformende Schraube enthält an ihrem vorderen Ende zwei Hauptschneiden und zwei Nebenschneiden, wobei diese Bohrerspitze durch Pressen oder Schmieden hergestellt werden kann (
Eine weitere Bohrschraube dieser Art (
Der Erfindung liegt die Aufgabe zu Grunde, eine Bohrschraube zu schaffen, die weitere Anwendungsmöglichkeiten bietet.The invention is based on the object to provide a self-drilling screw, which offers further applications.
Zur Lösung dieser Aufgabe schlägt die Erfindung eine Bohrschraube mit den im Patentanspruch 1 genannten Merkmalen vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.To solve this problem, the invention proposes a self-drilling screw with the features mentioned in
Eine derartige Bohrschraube lässt sich kostengünstig herstellen und weist Vorteile auf, die sich beim Einschrauben der Schraube zeigen.Such a drill screw can be produced inexpensively and has advantages that show when screwing the screw.
In Weiterbildung der Erfindung kann vorgesehen sein, dass die Nebenschneiden parallel zur Längsachse der Schraube und damit zur Drehachse verlaufen.In a further development of the invention it can be provided that the secondary cutting edges extend parallel to the longitudinal axis of the screw and thus to the axis of rotation.
Es ist aber ebenfalls möglich und wird von der Erfindung vorgeschlagen, dass die Nebenschneiden schräg zur Längsachse, gegebenenfalls auch längs einer Schraubenlinie verlaufen, um auf diese Weise einen Bohrspan besser abführen zu können und eine verbesserte Bohrleistung zu erreichen.However, it is also possible and is proposed by the invention that the secondary cutting edges extend obliquely to the longitudinal axis, possibly also along a helical line in order to better dissipate a drill chip in this way and to achieve improved drilling performance.
Zur besseren Führung der Bohrschraube vor dem Bohren und während des Bohrens kann erfindungsgemäß vorgesehen sein, dass die Hauptschneiden eine Spitze bilden, die vorteilhaft etwa in dem Bereich von 130° liegt.For better guidance of the drilling screw before drilling and during drilling, it can be provided according to the invention that the main cutting edges form a point which is advantageously approximately in the region of 130 °.
In den Fällen, wo eine Führung nicht erforderlich ist, kann erfindungsgemäß auch vorgesehen sein, dass die Hauptschneiden in einer Ebene liegen, die quer vorzugsweise senkrecht zur Längsachse der Bohrschraube verläuft.In cases where a guide is not required, it can also be provided according to the invention that the main cutting edges lie in a plane which runs transversely preferably perpendicular to the longitudinal axis of the drilling screw.
Erfindungsgemäß kann vorgesehen sein, dass die Bohrerspitze Flügel aufweist, an denen die Hauptschneiden und Nebenschneiden ausgebildet sind. Diese Flügel verlaufen einerseits in Axialrichtung und andererseits in radialer Richtung. Insbesondere kann vorgesehen sein, dass die Flügel eine konstante Dicke aufweisen. Sie sind praktisch als Plättchen ausgebildet, die damit an jeweils einer Kante die Schneiden bilden.According to the invention it can be provided that the drill tip has wings on which the main cutting edges and secondary cutting edges are formed. These wings extend on the one hand in the axial direction and on the other hand in the radial direction. In particular, it can be provided that the wings have a constant thickness. They are practically designed as platelets, which thus form the edges of each edge.
In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass die Flügel in Umfangsrichtung eine vorzugsweise ebene Vorderseite und/oder eine vorzugsweise ebene Rückseite aufweisen.In a further development of the invention it can be provided that the wings in the circumferential direction have a preferably flat front side and / or a preferably flat rear side.
Es wurde bereits erwähnt, dass die Bohrerspitze mindestens drei Hauptschneiden aufweist. Wenn die Hauptschneiden an den genannten Flügeln ausgebildet sind, enthält die Bohrerspitze also dann mindestens drei Flügel. Es kann nun vorgesehen sein, dass diese Flügel und damit auch die Hauptschneiden gleichmäßig verteilt sind, so dass die Hauptschneiden in einer Stirnansicht der Bohrschraube gesehen zwischen einander gleiche Winkel bilden.It has already been mentioned that the drill bit has at least three main cutting edges. If the main cutting edges are formed on said wings, then the drill tip will then contain at least three wings. It can now be provided that these wings and thus the main cutting edges are evenly distributed, so that the main cutting edges seen in an end view of the drill screw between equal angles form.
Es ist aber auch möglich, dass die Hauptschneiden beziehungsweise die Flügel in einer Stirnansicht gesehen ungleiche Winkel bilden. Beispielsweise können bei drei Hauptschneiden die Winkel zwischen 100 und 140° variieren, während sie bei vier Hauptschneiden zwischen 60 und 120° variieren können.But it is also possible that the main cutting edges or the wings seen in an end view form unequal angles. For example, with three main cutting edges, the angles can vary between 100 and 140 degrees, while with four main cutting edges they can vary between 60 and 120 degrees.
Zur Herstellung der Bohrerspitze kann vorgesehen sein, dass die Bohrerspitze geschmiedet ist.For the production of the drill bit can be provided that the drill bit is forged.
Eine andere von der Erfindung vorgeschlagene Möglichkeit besteht darin, die Bohrerspitze zu gießen.Another possibility proposed by the invention is to cast the drill bit.
Ebenfalls möglich ist es, dass die Bohrerspitze gekniffen ist.It is also possible that the drill bit is pinched.
Weiterhin wird von der Erfindung vorgeschlagen, die Bohrerspitze als getrenntes Bauteil herzustellen und anschließend mit dem Schaft der Bohrschraube zu verbinden. Hierbei kann es selbstverständlich sinnvoll sein, die Bohrerspitze aus einem anderen Material herzustellen als den Rest der Bohrschraube.Furthermore, it is proposed by the invention to produce the drill tip as a separate component and then to connect to the shaft of the drill screw. It may of course be useful to make the drill bit from a different material than the rest of the drill screw.
Als Material für die Bohrschraube kommt Stahl infrage, beispielsweise auch Edelstahl. Die Spitze kann, wenn sie als getrenntes Bauteil hergestellt wird, aus einem härtbarem Material bestehen.As a material for the drilling screw steel comes into question, for example, stainless steel. The tip, when made as a separate component, may be made of a hardenable material.
Nach einem nochmals weiteren Merkmal der Erfindung kann vorgesehen sein, dass die Enden der Hauptschneiden der Bohrschraube in einer Stirnansicht gesehen auf einer Kreislinie liegen, deren Durchmesser kleiner, größer oder gleich dem Kerndurchmesser der Bohrschraube ist, vorzugsweise größer.According to yet another feature of the invention can be provided that the ends of the main cutting edges of the drill screw in an end view are on a circular line whose diameter is smaller, larger than or equal to the Core diameter of the drill screw is, preferably larger.
Es kann ebenfalls vorgesehen sein, dass die Nebenschneiden auf einer Kreiszylinderfläche liegen, deren Durchmesser dem Kerndurchmesser der Bohrschraube gleich ist.It can also be provided that the secondary cutting edges lie on a circular cylindrical surface whose diameter is equal to the core diameter of the drilling screw.
Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Ansprüchen und der Zusammenfassung, deren beider Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung bevorzugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:Further features, details and advantages of the invention will become apparent from the claims and the abstract, the wording of which is incorporated by reference into the content of the description, the following description of preferred embodiments of the invention and with reference to the drawing. Hereby show:
Die in
Den Verlauf der Haupt- und Nebenschneiden
Die in den
Auch hier ist wieder zu sehen, dass die Bohrerspitze
Ein gemeinsames Merkmal der beiden Ausführungsformen ist, dass die Hauptschneiden
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 1625417 [0002] DE 1625417 [0002]
- EP 370674 [0003] EP 370674 [0003]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041165A DE102010041165A1 (en) | 2010-09-22 | 2010-09-22 | Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041165A DE102010041165A1 (en) | 2010-09-22 | 2010-09-22 | Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010041165A1 true DE102010041165A1 (en) | 2012-03-22 |
Family
ID=45768809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010041165A Ceased DE102010041165A1 (en) | 2010-09-22 | 2010-09-22 | Drilling screw, has screw thread extending over cylindrical screw shank, drill tip manufactured using reforming procedure and provided with major cutting edges, and minor cutting edges running parallel to longitudinal axis of screw |
Country Status (1)
Country | Link |
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DE (1) | DE102010041165A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3047951A1 (en) * | 2015-01-23 | 2016-07-27 | Bulten AB | Fastener |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1625417A1 (en) | 1966-09-13 | 1970-08-13 | Parker Kalon Corp | Screw and method of making it |
AT304190B (en) * | 1966-05-10 | 1972-12-27 | Illinois Tool Works | Drilling screw |
FR2405389A1 (en) * | 1977-10-06 | 1979-05-04 | Lucain Alfred | SELF-DRILLING AND SELF-TAPPING SCREW |
DE3604390A1 (en) * | 1985-02-12 | 1986-08-14 | Nisco Inc., Shiga | SELF-DRILLING SCREW |
EP0370674A1 (en) | 1988-11-25 | 1990-05-30 | Yugen Kaisha Shinjoseisakusho | Drill screw |
DE20121563U1 (en) * | 2001-09-27 | 2003-01-02 | Sfs Intec Holding Ag Heerbrugg | Screw for fixing a casing plate to a metal casing carrier, comprises a threaded part with two different diameters having different pitches |
DE202007008325U1 (en) * | 2007-06-14 | 2007-10-04 | He, Tsan-Hung, Yangmei | Drilling screw with six cutting edges |
-
2010
- 2010-09-22 DE DE102010041165A patent/DE102010041165A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT304190B (en) * | 1966-05-10 | 1972-12-27 | Illinois Tool Works | Drilling screw |
DE1625417A1 (en) | 1966-09-13 | 1970-08-13 | Parker Kalon Corp | Screw and method of making it |
FR2405389A1 (en) * | 1977-10-06 | 1979-05-04 | Lucain Alfred | SELF-DRILLING AND SELF-TAPPING SCREW |
DE3604390A1 (en) * | 1985-02-12 | 1986-08-14 | Nisco Inc., Shiga | SELF-DRILLING SCREW |
EP0370674A1 (en) | 1988-11-25 | 1990-05-30 | Yugen Kaisha Shinjoseisakusho | Drill screw |
DE20121563U1 (en) * | 2001-09-27 | 2003-01-02 | Sfs Intec Holding Ag Heerbrugg | Screw for fixing a casing plate to a metal casing carrier, comprises a threaded part with two different diameters having different pitches |
DE202007008325U1 (en) * | 2007-06-14 | 2007-10-04 | He, Tsan-Hung, Yangmei | Drilling screw with six cutting edges |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3047951A1 (en) * | 2015-01-23 | 2016-07-27 | Bulten AB | Fastener |
WO2016116597A1 (en) * | 2015-01-23 | 2016-07-28 | Bulten Ab | Fastener |
US10436237B2 (en) | 2015-01-23 | 2019-10-08 | Bulten Ab | Fastener |
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R163 | Identified publications notified | ||
R012 | Request for examination validly filed |
Effective date: 20120516 |
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R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |