DE102005041586A1 - Thread-forming screw - Google Patents
Thread-forming screw Download PDFInfo
- Publication number
- DE102005041586A1 DE102005041586A1 DE102005041586A DE102005041586A DE102005041586A1 DE 102005041586 A1 DE102005041586 A1 DE 102005041586A1 DE 102005041586 A DE102005041586 A DE 102005041586A DE 102005041586 A DE102005041586 A DE 102005041586A DE 102005041586 A1 DE102005041586 A1 DE 102005041586A1
- Authority
- DE
- Germany
- Prior art keywords
- thread
- projections
- screw
- over
- forming screw
- 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.)
- Withdrawn
Links
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 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
- F16B25/001—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
-
- 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
- F16B25/0042—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0047—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge being characterised by its cross-section in the plane of the shaft axis
-
- 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
- F16B25/0042—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0052—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge having indentations, notches or the like in order to improve the cutting behaviour
Abstract
Gewindefurchende Schraube mit Vorsprüngen auf ihrem Gewinde, deren Rückflanke vom Gewindeanfang her mit von ihr abstehenden Vorsprüngen versehen ist und deren Lastflanke eine durchgehende glatte Fläche bildet.Thread rolling screw with protrusions on its thread, the rear flank of which is provided with protrusions protruding from it and the load flank forms a continuous smooth surface.
Description
Die Erfindung bezieht sich auf eine gewindefurchende Schraube mit Vorsprüngen auf ihrem Gewinde.The The invention relates to a thread-forming screw with projections their thread.
Schrauben
mit derartigen Vorsprüngen
sind im Stand der Technik in großer Zahl vorhanden. Beispielsweise
handelt es sich dabei um Schrauben, die auf ihrer Lastflanke (dem
Schraubenkopf zugewandte Flanke) mit Vorsprüngen versehen sind, die so
gestaltet sind, dass sie dem Rückdrehen
einer eingedrehten Schraube einen besonders großen Widerstand entgegen setzen
(siehe
Der Erfindung liegt die Aufgabe zugrunde, eine gewindefurchende Schraube mit Vorsprüngen auf ihren Flanken so zu gestalten, dass sich einerseits beim Eindrehen das Gewinde mit günstigem Kraftaufwand furcht und andererseits im angezo genen Zustand besonders hohen axialen Belastungen (Vorspannkraft) widerstehen kann. Erfindungsgemäß geschieht dies dadurch, dass ihre Rückflanke vom Gewindeanfang her mit von ihr abstehenden Vorsprüngen versehen ist und ihre Lastflanke eine durchgehende glatte Fläche bildet.Of the Invention is based on the object, a thread-forming screw with projections on their flanks so that on the one hand when screwing the thread with a favorable force fear and on the other hand in angezo gene state particularly high axial Resistances (biasing force) can withstand. According to the invention happens this by having their trailing edge provided from the beginning of the thread with her protruding projections is and their load flank forms a continuous smooth surface.
Aufgrund dieser Gestaltung können die Vorsprünge, die von der Rückflanke abstehen, beim Eindrehen der Schraube in ein Mutterstück durch die dabei führenden Vorsprünge das Gewinde in günstiger Weise einfurchen, weil die Rückflanke die dabei führende Seite der Schraube bildet. Im angezogenen Zustand liegt die durchgehend glatte Fläche der Lastflanke gegen die entsprechende Flanke des gefurchten Muttergewindes satt an, wird also nicht durch die gemäß dem Stand der Technik auf dieser Seite vorgesehenen Vorsprünge hinsichtlich der durch diese erzeugten Flächenpressung ungünstig beeinflusst, da nämlich bei axialer Belastung der angezogenen Schraube diese gemäß dem Stand der Technik die von ihrer Lastflanke her abstehenden Vorsprünge in das Material des Mutterstücks eindrückt, was zu einer örtlichen Steigerung der Flächenpressung im Muttergewinde führt und damit die der Schraube zumutbare Vorspannkraft entsprechend verringert.by virtue of this design can the projections, from the trailing edge protrude, when screwing the screw in a nut piece through leading the way projections the thread in a favorable manner furrow, because the trailing edge leading the way Side of the screw forms. When tightened, the continuous smooth surface the load flank against the corresponding flank of the grooved nut thread so full, so is not by the according to the prior art this page provided projections with regard to the surface pressure generated by this unfavorable, since namely at axial load of the tightened screw this according to the state the technique of protruding from their load flank ago projections in the Material of the mother piece pushing, what a local Increase in surface pressure leads in the nut thread and thus the screw of the reasonable biasing force accordingly reduced.
Die Vorsprünge kann man insbesondere hinsichtlich ihrer radialen Länge verschieden gestalten. So ist es möglich, die Vorsprünge so zu gestalten, dass sie sich über die Gewindegangspitzen erstrecken. Weiterhin können die Vorsprünge auch so kurz ausgebildet sein, dass sie sich nur über einen Teil der Rückflanke radial erstrecken.The projections you can different in particular with regard to their radial length shape. So it is possible the projections so that they are over the thread tips extend. Furthermore, the projections can also be formed so short that they only cover part of the trailing edge extend radially.
Die Anzahl der Vorsprünge längs eines Gewindeganges über 360° lässt sich in verschiedener Zahl vorsehen. So können z.B. über den Bereich von 360° mindestens zwei Vorsprünge vorgesehen sein, was bedeutet, dass natürlich auch wesentlich mehr Vorsprünge über die 360° verteilt sind.The Number of protrusions along a Thread turns over 360 ° can be to provide in different numbers. Thus, e.g. over the range of 360 ° at least two projections be provided, which means that, of course, much more protrusions over the Distributed 360 ° are.
Hinsichtlich der axialen Längserstreckung des Bereichs mit den Vorsprüngen ist es möglich, dass das Gewinde über seine volle Länge, also über seine gesamte Erstreckung, mit Vorsprüngen versehen ist. Es ist aber auch möglich, das Gewinde nur über einen Teil seiner Länge mit den Vorsprüngen zu versehen.Regarding the axial length of the Area with the tabs is it possible that the thread over his full length, so about his entire extension, with protrusions is provided. But it is also possible the thread only over a part of its length with the projections to provide.
In den Figuren sind Ausführungsbeispiele der Erfindung dargestellt, es zeigen:In the figures are embodiments of Invention shown, show:
In
der
Die
Gestalt der abstehenden Vorsprünge
In
der
Aus
der Schnittdarstellung gemäß
Wenn
für eine
gewindefurchende Schraube nach Art der hier behandelten Schraube
ein geringeres Eindrehmoment verlangt wird, dann werden die Vorsprünge verkürzt, was
anhand der
Die
Bei
einem Vergleich der einander entsprechenden
In
den beiden dargestellten Ausführungsformen
gemäß
In
der
In
den
Gemäß
Bei
allen dargestellten Ausführungsbeispielen
bildet die Lastflanke
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005041586A DE102005041586A1 (en) | 2005-09-01 | 2005-09-01 | Thread-forming screw |
PCT/EP2006/008484 WO2007025736A2 (en) | 2005-09-01 | 2006-08-30 | Tapping screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005041586A DE102005041586A1 (en) | 2005-09-01 | 2005-09-01 | Thread-forming screw |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005041586A1 true DE102005041586A1 (en) | 2007-03-08 |
Family
ID=37735420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005041586A Withdrawn DE102005041586A1 (en) | 2005-09-01 | 2005-09-01 | Thread-forming screw |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102005041586A1 (en) |
WO (1) | WO2007025736A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2131048A3 (en) * | 2008-06-06 | 2010-05-26 | PEE-WEE Kaltwalz- und Rohrbearbeitungsmaschinen GmbH | Locking element for a screw connection and such a screw connection |
DE102014007039A1 (en) * | 2014-05-14 | 2015-11-19 | Sfs Intec Holding Ag | Fastening arrangement, screw for a fastening arrangement and use of a screw in a fastening arrangement |
EP3002467A4 (en) * | 2014-07-28 | 2017-03-01 | Aoyama Seisakusho Co., Ltd. | Self-tapping screw for soft metals |
DE102017219160A1 (en) * | 2017-10-25 | 2019-04-25 | Toge Dübel Gmbh & Co. Kg | Screw for screwing into a borehole |
US11116557B2 (en) | 2017-12-06 | 2021-09-14 | Stryker European Operations Holdings Llc | Orthopedic locking screw |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6626231B1 (en) * | 2019-05-21 | 2019-12-25 | 株式会社トープラ | Male thread member |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH10564A (en) * | 1895-07-11 | 1895-12-31 | Franz Dietz | Automatically releasable screw lock |
US2301181A (en) * | 1941-10-23 | 1942-11-10 | Eric M Ilsemann | Self-locking threaded fastening element |
DE1400883B1 (en) * | 1962-02-05 | 1969-11-13 | Res Eng & Mfg | Chipless thread-producing screw |
DE2703433A1 (en) * | 1977-01-28 | 1978-12-07 | Schumacher Wilhelm Kg | THREAD FORMING SCREW AND METHOD OF MANUFACTURING THE SAME AND ROLLING JAW FOR PERFORMING THE METHOD |
US4653968A (en) * | 1980-08-25 | 1987-03-31 | Illinois Tool Works, Inc. | Adjustable abutment assembly |
DE4022918A1 (en) * | 1990-07-19 | 1992-01-23 | Lauer Peter Dipl Ing Fh | Self-locking screw connection - has screw, threaded pin and nut and has radial ridges on sides of thread pitch |
DE4206440A1 (en) * | 1991-03-27 | 1992-10-01 | Reisser Schraubenwerk Gmbh & C | Self tapping screw with single or multiple pitched thread - has spaced apart steps along thread edge, extending to tip |
DE9212532U1 (en) * | 1992-09-17 | 1993-10-14 | Gefinex Jackon Gmbh | screw |
JPH09144733A (en) * | 1995-11-24 | 1997-06-03 | Nitto Seiko Co Ltd | Locking screw |
DE19724052A1 (en) * | 1997-06-07 | 1998-12-10 | Wuerth Adolf Gmbh & Co Kg | screw |
DE29906105U1 (en) * | 1999-04-03 | 1999-07-29 | Duve Umformtechnik Gmbh | screw |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4419988A1 (en) * | 1994-06-08 | 1995-12-14 | Eichsfelder Schraubenwerk Gmbh | Thread=cutting screw, in partic. for chipboard |
US6464439B1 (en) * | 1997-08-04 | 2002-10-15 | Bernhard M. Janitzki | Low tolerance threaded fastener |
-
2005
- 2005-09-01 DE DE102005041586A patent/DE102005041586A1/en not_active Withdrawn
-
2006
- 2006-08-30 WO PCT/EP2006/008484 patent/WO2007025736A2/en active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH10564A (en) * | 1895-07-11 | 1895-12-31 | Franz Dietz | Automatically releasable screw lock |
US2301181A (en) * | 1941-10-23 | 1942-11-10 | Eric M Ilsemann | Self-locking threaded fastening element |
DE1400883B1 (en) * | 1962-02-05 | 1969-11-13 | Res Eng & Mfg | Chipless thread-producing screw |
DE2703433A1 (en) * | 1977-01-28 | 1978-12-07 | Schumacher Wilhelm Kg | THREAD FORMING SCREW AND METHOD OF MANUFACTURING THE SAME AND ROLLING JAW FOR PERFORMING THE METHOD |
US4653968A (en) * | 1980-08-25 | 1987-03-31 | Illinois Tool Works, Inc. | Adjustable abutment assembly |
DE4022918A1 (en) * | 1990-07-19 | 1992-01-23 | Lauer Peter Dipl Ing Fh | Self-locking screw connection - has screw, threaded pin and nut and has radial ridges on sides of thread pitch |
DE4206440A1 (en) * | 1991-03-27 | 1992-10-01 | Reisser Schraubenwerk Gmbh & C | Self tapping screw with single or multiple pitched thread - has spaced apart steps along thread edge, extending to tip |
DE9212532U1 (en) * | 1992-09-17 | 1993-10-14 | Gefinex Jackon Gmbh | screw |
JPH09144733A (en) * | 1995-11-24 | 1997-06-03 | Nitto Seiko Co Ltd | Locking screw |
DE19724052A1 (en) * | 1997-06-07 | 1998-12-10 | Wuerth Adolf Gmbh & Co Kg | screw |
DE29906105U1 (en) * | 1999-04-03 | 1999-07-29 | Duve Umformtechnik Gmbh | screw |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2131048A3 (en) * | 2008-06-06 | 2010-05-26 | PEE-WEE Kaltwalz- und Rohrbearbeitungsmaschinen GmbH | Locking element for a screw connection and such a screw connection |
US8038376B2 (en) | 2008-06-06 | 2011-10-18 | Pee-Wee Kaltwalz- und Rohrbearbeitungsmachinen GmbH | Connection element for a screwed connection as well as such a screwed connection |
DE102014007039A1 (en) * | 2014-05-14 | 2015-11-19 | Sfs Intec Holding Ag | Fastening arrangement, screw for a fastening arrangement and use of a screw in a fastening arrangement |
EP3002467A4 (en) * | 2014-07-28 | 2017-03-01 | Aoyama Seisakusho Co., Ltd. | Self-tapping screw for soft metals |
DE102017219160A1 (en) * | 2017-10-25 | 2019-04-25 | Toge Dübel Gmbh & Co. Kg | Screw for screwing into a borehole |
EP3477127A1 (en) * | 2017-10-25 | 2019-05-01 | TOGE Dübel GmbH & Co. KG | Screw for screwing into a hole |
US11116557B2 (en) | 2017-12-06 | 2021-09-14 | Stryker European Operations Holdings Llc | Orthopedic locking screw |
Also Published As
Publication number | Publication date |
---|---|
WO2007025736A3 (en) | 2007-07-19 |
WO2007025736A2 (en) | 2007-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |