DE29811536U1 - Screw for wood materials - Google Patents
Screw for wood materialsInfo
- Publication number
- DE29811536U1 DE29811536U1 DE29811536U DE29811536U DE29811536U1 DE 29811536 U1 DE29811536 U1 DE 29811536U1 DE 29811536 U DE29811536 U DE 29811536U DE 29811536 U DE29811536 U DE 29811536U DE 29811536 U1 DE29811536 U1 DE 29811536U1
- Authority
- DE
- Germany
- Prior art keywords
- screw
- thread
- section
- wood
- screw according
- 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.)
- Expired - Lifetime
Links
- 239000002023 wood Substances 0.000 title claims description 22
- 239000000463 material Substances 0.000 title claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 2
- 239000011295 pitch Substances 0.000 description 9
- 229920002522 Wood fibre Polymers 0.000 description 5
- 239000002025 wood fiber Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 102100028622 Brefeldin A-inhibited guanine nucleotide-exchange protein 3 Human genes 0.000 description 1
- 101710100909 Brefeldin A-inhibited guanine nucleotide-exchange protein 3 Proteins 0.000 description 1
- 229910000915 Free machining steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- F16B25/0015—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 a soft organic material, e.g. wood or plastic
-
- 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
- F16B25/0057—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 screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
- F16B35/065—Specially-shaped heads with self-countersink-cutting means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Anmelderin: Bierbach GmbH & Co. KG BefestigungstechnikApplicant: Bierbach GmbH & Co. KG Fastening technology
Rudolf-Diesel-Straße D-59425 UnnaRudolf-Diesel-Strasse D-59425 Unna
Titel: Schraube für Holzwerkstoffe 20Title: Screw for wood materials 20
Vertreter: PatentanwaltRepresentative: Patent Attorney
Dr. Helmut Hoffmeister 30Dr. Helmut Hoffmeister 30
Goldstraße D-48147 MünsterGoldstrasse D-48147 Münster
(A:BIG3 0_T2.TAT)(A:BIG3 0_T2.TAT)
Schraube für HolzwerkstoffeScrew for wood materials
Die Erfindung betrifft eine metallene Schraube * insbesondere für Holz und Holzwerkstoffe, mit einem unterhalb des Schraubenkopfes angeordneten Schraubenschaft, der auf seiner Länge einen im wesentlichen zylindrischen Mittelabschnitt, einen divergierenden. Endbereich und ein sich wenigstens teilweise über den Schraubenschaft erstreckendes Gewinde aufweist, das im Endbereich in eine Bohrspitze ausläuft, wobei das Gewinde in seinem Querschnitt eine dem Schraubenkopf zugewandte, obere Flanke und eine der Bohrspitze 20The invention relates to a metal screw * in particular for wood and wood materials, with a screw shaft arranged below the screw head, which has a substantially cylindrical middle section along its length, a diverging end region and a thread extending at least partially over the screw shaft, which ends in a drill tip in the end region, the thread in its cross section having an upper flank facing the screw head and an upper flank facing the drill tip 20
zugewandte, untere Flanke aufweist, die mit einer Senkrechten zur Schraubenachse jeweils einen Flankenwinkel bilden.facing lower flank, which each form a flank angle with a perpendicular to the screw axis.
Die adjektivischen Begriffe "unten, untere" und "oben,The adjectival terms "below, lower" and "above,
obere" beziehen sich auf Elemente einer üblicherweise mit 25upper" refer to elements of a typically 25
ihrer Bohrspitze auf den unteren Rand des Zeichenblattes gerichteten Schraube (vgl. Fig. 1).with its drill tip pointing towards the lower edge of the drawing sheet (see Fig. 1).
Es sind bereits metallene Holzschrauben bekannt, deren Gewindesteigung zwecks Erhöhung des Vorschubes beim Eindrehen in 30Metal wood screws are already known whose thread pitch in order to increase the feed rate when screwing in 30
das Holzmaterial gegenüber der in den DIN-Normen 95, 96, genannten Steigungen erhöht ist. Die Erhöhung der Gewindesteigung bringt allerdings ein ebenfalls erhöhtes Eindrehmoment mit sich. Zusätzlich ist festzustellen, daß diethe wood material is increased compared to the pitches specified in DIN standards 95, 96. However, the increase in the thread pitch also results in an increased screwing torque. In addition, it should be noted that the
Auszugsfestigkeit negativ von der Erhöhung der Gewinde-35 Pull-out strength negatively affected by the increase in thread-35
Steigung beeinflußt wird.gradient is influenced.
Es stellt sich die Aufgabe, eine neuartige, insbesondere für Holz und Holzwerkstoffe metallene Schraube anzugeben, die bei bei erhöhter Gewindesteigung eine ausreichende Auszugs festigkeit aufweist und die sich beim Eindrehen nicht in den Werkstoff einklemmt.The task is to provide a new type of metal screw, particularly for wood and wood-based materials, which has sufficient pull-out strength despite an increased thread pitch and which does not jam into the material when screwed in.
Diese Aufgabe wird bei einer Schraube der eingangs genannten Art dadurch gelöst, daßThis task is solved in a screw of the type mentioned above by
- der obere Flankenwinkel größer als der untere IQ Flankenwinkel ist,- the upper flank angle is greater than the lower IQ flank angle,
- und daß an der Peripherie des Schraubenschaftes oberhalb des Gewindes eine Reibzone angeordnet ist, deren Durchmesser im wesentlichen dem Außendurchmesser des Gewindes entspricht.- and that a friction zone is arranged on the periphery of the screw shaft above the thread, the diameter of which essentially corresponds to the outer diameter of the thread.
Normalerweise neigen Holz und Holzwerkstoffe dazu, beim Durchschrauben in die Ursprungsgeometrie zurückzuwandern, d.h. die Holzfasern versuchen quasi, die Schraube zu halten. Um dieser Eigenschaft entgegenzukommen, ist der "kleinere" Flankenwinkel vorzugsweise bis zu einem Minimum reduziert, .bzw, erreicht Wert Null- In. dies-em, EaJLL deckt sich, die untere Flankenoberfläche mit der Senkrechten zur Schraubenachse, und die senkrecht gegenüber der Zugkraft gerichtete Kraft-Komponente erreicht ihren relativ größsten Wert.Normally, wood and wood-based materials tend to return to their original geometry when screwed through, ie the wood fibers try to hold the screw. To accommodate this property, the "smaller" flank angle is preferably reduced to a minimum, or reaches a value of zero. In this case, the lower flank surface coincides with the perpendicular to the screw axis, and the force component directed perpendicular to the tensile force reaches its relatively greatest value.
Um dem erhöhten Einschraubmoment bei erhöhter Gewindesteigung der Holzschraube entgegenzuwirken, wird vorgeschlagen, am Schraubenschaft oberhalb der Gewinderaupe eine Reibzone anzuordnen, die das Bohrloch im zu befestigenden Holzmaterial aufreibt, und- somit verhindert, daß der Schraubenschaft nach dem Eindrehen klemmt.In order to counteract the increased screwing torque with an increased thread pitch of the wood screw, it is suggested to arrange a friction zone on the screw shaft above the thread bead, which rubs open the drill hole in the wood material to be fastened and thus prevents the screw shaft from jamming after screwing in.
Diese Reibzone kann von wenigstens einer Reibwendel gebildet sein, deren Steigung wenigstens doppelt so groß ist wie die Steigung des unterhalb der Reibzone angeordneten Gewindes.This friction zone can be formed by at least one friction spiral, the pitch of which is at least twice as large as the pitch of the thread arranged below the friction zone.
Vorteilhaft ist weiterhin, den Schraubenkopf an seiner Unterseite mit pyramidenförmigen Ausnehmungen oder Taschen auszu-It is also advantageous to provide the screw head with pyramid-shaped recesses or pockets on its underside.
statten, die jeweils zwischen zwei Vorsprüngen angeordnet sind. Diese Taschen verhindern beim Eindrehen des Kopfes die Spaltwirkung.which are each arranged between two projections. These pockets prevent the splitting effect when the head is screwed in.
Vorzugsweise besitzen die Taschen jeweils eine beim Eindrehen vordere, etwa tangential zur Peripherie des Schraubenschaftes verlaufende Taschen-Kante, die als Schneidkante wirkt, wodurch die Holzfasern abgetrennt und heraustransportiert werden.Preferably, the pockets each have a pocket edge at the front, which runs approximately tangentially to the periphery of the screw shaft when screwing in, which acts as a cutting edge, whereby the wood fibers are separated and transported out.
Die Erfindung ist in einem Ausführungsbeispiel anhand der Zeichnung näher erläutert. Die Figuren der Zeichnung zeigen im einzelnen:The invention is explained in more detail in an embodiment using the drawing. The figures of the drawing show in detail:
Fig. l eine Schraube in schematischer Darstellung, Fig. 2 einen Schraubenkopf, perspektivisch gesehen,Fig. l a screw in schematic representation, Fig. 2 a screw head, seen in perspective,
Fig.3 einen Schnitt A-A gemäß Fig. 1,Fig.3 a section A-A according to Fig. 1,
Fig.4 einen Schnitt durch das Gewinde im Peripherie-Fig.4 a section through the thread in the peripheral
Bereich des SchraubenschaftesArea of the screw shaft
Fig. 1 zeigt eine aus Messing oder Automatenstahl hergestellte Schraube 20, die insbesondere für Holzspanplatten und Vollholz als Verbindungselement bestimmt ist. Die Schraube 20 besteht aus einem Schraubenschaft 1 mit Gewinde 7 und einem Schraubenkopf 2. Der Schraubenschaft 1 ist in zwei Teile aufgeteilt, nämlich in einen im wesentlichen zylindrischen Mittelabschnitt 4 und in einen Endbereich 5 mit einer Bohrspitze 6. Der Mittelabschnitt 4 setzt sich im Kopfbereich in einen glatten, kegeligen Eindringteil 12 fort. Der Schraubenkopf 2 ist als Senkkopf mit einem Innenvielkant auf seiner Oberseite (in der Figur verdeckt) ausgeführt.Fig. 1 shows a screw 20 made of brass or free-cutting steel, which is intended in particular for use as a connecting element in chipboard and solid wood. The screw 20 consists of a screw shaft 1 with a thread 7 and a screw head 2. The screw shaft 1 is divided into two parts, namely a substantially cylindrical central section 4 and an end section 5 with a drill bit 6. The central section 4 continues in the head area into a smooth, conical penetration part 12. The screw head 2 is designed as a countersunk head with an internal polygon on its top side (hidden in the figure).
Das am zylindrischen Mittelabschnitt 4 aufgebrachte, dop-The double layer applied to the cylindrical middle section 4
pelgängige Gewinde 7 läuft nach unten in zwei an derthread 7 runs downwards into two at the
Bohrspitze 6 angeordnete schneidende Windungen aus, wie bei Holzschrauben üblich. Das Gewinde 7 nimmt etwa 75% der
Schraubenschaftlänge ein.
&dgr;Drill tip 6 has cutting threads arranged as usual with wood screws. Thread 7 takes up about 75% of the screw shaft length.
&dgr;
Eine wesentliche Besonderheit der in Fig. 1 dargestellten Schraube liegt darin, daß das Gewinde 7 im Querschnitt gesehen die Form eines spitzwinkligen Dreiecks besitzt, bei dem ein (oberer) Flankenwinkel ßl zwischen der oberen Flanke 8 und einer Senkrechten S zur Schraubenachse A größer als der zweite (untere) Flankenwinkel ß2 ist, der von der Senkrechten S und der unteren Flanken 81 auf der Schaftperipherie gebildet ist (vgl. Fig.l).An essential feature of the screw shown in Fig. 1 is that the thread 7, seen in cross section, has the shape of an acute-angled triangle in which an (upper) flank angle ß1 between the upper flank 8 and a perpendicular S to the screw axis A is larger than the second (lower) flank angle ß2 formed by the perpendicular S and the lower flanks 8 1 on the shaft periphery (cf. Fig. 1).
Wie aus dem Querschnitt gemäß Fig. 4 hervorgeht, deckt sich im Extremfall die Senkrechte S mit der unteren Flanke 8', so daß der Flankenwinkel &2 Null wird und der Flankenw±nkel ßi sein Maximum erreicht. Diese Gewindeform hat sich als besonders vorteilhaft erwiesen, da bei einer bestimmten Zugbelastung (Zugkraft Pl) die in das Holzmaterial 18 eingeleitete Kraft-Komponente P2 größer ist, als im Falle eines kleineren Flankenwinkels ßl.As can be seen from the cross-section according to Fig. 4, in the extreme case the vertical S coincides with the lower flank 8', so that the flank angle &2 becomes zero and the flank angle ßi reaches its maximum. This thread form has proven to be particularly advantageous since, for a certain tensile load (tensile force Pl), the force component P2 introduced into the wood material 18 is greater than in the case of a smaller flank angle ßl.
Eine weitere Besonderheit der Erfindung stellt dar, daß zum Verhindern einer Klemmwirkung des Schraubenschaftes l beim Eindrehen in das Holzmaterial eine Reibzone 10 vorgesehen ist, mit der das Bohrloch im oberen Bereich aufreibbar ist. Die Reibzone 10 schließt sich direkt an das Gewinde 7 an, wie in Fig. 1 zu sehen ist. Oberhalb der Reibzone 10 ist am Schraubenschaft 1 noch ein kurzer, glatter Schaftabschnitt 19 angeordnet. Die Reibzone 10 ist im Ausführungsbeispiel in Form zweier Reibwendeln 17 ausgeführt, deren Steigung etwa drei- bis viermal größer als die Steigung h des Gewindes 7, und deren Durchmesser Dl dem Außendurchmesser D2 des Gewindes 7 im wesentlichen entspricht. Ein Querschnitt der Reibzone 10 ist in Fig. 3 gezeigt. Die radial nach außen zeigenden Spitzenvorsprünge 27 sind deutlich zu erkennen.Another special feature of the invention is that to prevent a clamping effect of the screw shaft l when screwing into the wood material, a friction zone 10 is provided, with which the drill hole can be reamed open in the upper area. The friction zone 10 is directly connected to the thread 7, as can be seen in Fig. 1. Above the friction zone 10, a short, smooth shaft section 19 is arranged on the screw shaft 1. In the exemplary embodiment, the friction zone 10 is designed in the form of two friction spirals 17, the pitch of which is approximately three to four times greater than the pitch h of the thread 7, and the diameter Dl of which essentially corresponds to the outer diameter D2 of the thread 7. A cross section of the friction zone 10 is shown in Fig. 3. The radially outward-pointing tip projections 27 can be clearly seen.
Mit ihnen wird peripher der Holzwerkstoff beim Eindrehen gerieben.They are used to rub the wood material peripherally when screwing it in.
Der Schraubenkopf 2 ist mit sechs an seiner Unterseite eingearbeiteten, prismatischen Ausnehmungen (Taschen 22; vgl. Fig. 2) versehen , deren Aufgabe es ist, die Holzfasern beim Eindrehen des Schraubenkopfes ins Holzmaterial abzutrennen. Zu diesem Zweck weisen die Taschen 22 jeweils zwei Taschen-Kanten 13, 15 auf, von denen die etwa tangential zur Peripherie 14 verlaufende Taschen-Kante 13 die schneidende Funktion (in Drehriahtung der Schraube gesehen) hat. Beim Eindrehen werden die Holzfasern von der Taschen-Kante angeschnitten, abgetrennt und durch die Taschen heraustransportiert. Die in den Holzfasern im Kopfbereich der Schraube eintretenden Risse lassen sich begrenzen; die Holzoberfläche bleibt weitgehend glatt.The screw head 2 is provided with six prismatic recesses (pockets 22; see Fig. 2) incorporated into its underside, the purpose of which is to separate the wood fibers when the screw head is screwed into the wood material. For this purpose, the pockets 22 each have two pocket edges 13, 15, of which the pocket edge 13 running approximately tangentially to the periphery 14 has the cutting function (seen in the direction of rotation of the screw). When screwing in, the wood fibers are cut by the pocket edge, separated and transported out through the pockets. The cracks that occur in the wood fibers in the head area of the screw can be limited; the wood surface remains largely smooth.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29811536U DE29811536U1 (en) | 1998-06-29 | 1998-06-29 | Screw for wood materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29811536U DE29811536U1 (en) | 1998-06-29 | 1998-06-29 | Screw for wood materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29811536U1 true DE29811536U1 (en) | 1998-10-01 |
Family
ID=8059147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29811536U Expired - Lifetime DE29811536U1 (en) | 1998-06-29 | 1998-06-29 | Screw for wood materials |
Country Status (1)
Country | Link |
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DE (1) | DE29811536U1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1031742A1 (en) * | 1999-02-23 | 2000-08-30 | A-Z Ausrüstung und Zubehör GmbH & Co. KG | Countersunk screw head |
EP1031741A1 (en) * | 1999-02-23 | 2000-08-30 | A-Z Ausrüstung und Zubehör GmbH & Co. KG | Countersunk head screw |
DE29901218U1 (en) * | 1999-01-25 | 2000-09-07 | Wieland Engineering Ag, Maienfeld | Fastening structure of metal sheets on wood |
EP1152157A1 (en) * | 2000-05-03 | 2001-11-07 | ITW Australia Pty Ltd | A screw fastener |
WO2006111412A1 (en) * | 2005-04-22 | 2006-10-26 | Berner Gmbh | Wooden and plastic screw |
DE102006002560A1 (en) * | 2006-01-10 | 2007-07-12 | Swg Schraubenwerk Gaisbach Gmbh | Screw with countersunk head, has two surface regions underneath head, of which the first includes depressions and the second includes cutting ridges |
WO2007087904A1 (en) * | 2006-01-12 | 2007-08-09 | Abc Verbindungstechnik Gmbh & Co. Kg | Self-tapping and thread-forming screw |
KR100755818B1 (en) * | 2005-04-22 | 2007-09-07 | 베르너 게엠베하 | Wood and plastic screw |
DE102008008074A1 (en) * | 2008-01-29 | 2009-07-30 | Reisser Schraubentechnik Gmbh | Fixing element for fixing e.g. floorboard at substructure, has bar arranged between flanks, and passage borehole i.e. stepped borehole, accommodating fastening screw, where axis of borehole extends perpendicular to sides of flanks |
EP2372177A1 (en) * | 2010-03-30 | 2011-10-05 | Reisser Schraubentechnik GmbH | Chipboard screw |
DE202012101328U1 (en) | 2011-04-12 | 2012-04-27 | Sihga Handels Gmbh | Screw for fixing a wooden part to a substructure |
CN102996595A (en) * | 2012-12-18 | 2013-03-27 | 庆达科技股份有限公司 | Wood screw |
CN103890416A (en) * | 2011-08-24 | 2014-06-25 | 新革新合同会社 | Directional indication structure for threaded body |
DE102019203869A1 (en) * | 2019-03-21 | 2020-09-24 | Adolf Würth Gmbh & Co Kg | Screw for wood materials |
WO2022034004A1 (en) * | 2020-08-11 | 2022-02-17 | Swg Schraubenwerk Gaisbach Gmbh | Screw for wood, wood-based materials and wood-like materials |
RU225698U1 (en) * | 2023-12-08 | 2024-05-02 | Сергей Евгеньевич Бояринцев | SCREW WITH COUNTERSET FOR WOODEN STRUCTURES |
-
1998
- 1998-06-29 DE DE29811536U patent/DE29811536U1/en not_active Expired - Lifetime
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29901218U1 (en) * | 1999-01-25 | 2000-09-07 | Wieland Engineering Ag, Maienfeld | Fastening structure of metal sheets on wood |
EP1031741A1 (en) * | 1999-02-23 | 2000-08-30 | A-Z Ausrüstung und Zubehör GmbH & Co. KG | Countersunk head screw |
EP1031742A1 (en) * | 1999-02-23 | 2000-08-30 | A-Z Ausrüstung und Zubehör GmbH & Co. KG | Countersunk screw head |
EP1152157A1 (en) * | 2000-05-03 | 2001-11-07 | ITW Australia Pty Ltd | A screw fastener |
AU2006235952B8 (en) * | 2005-04-22 | 2008-12-11 | Berner Gmbh | Wooden and plastic screw |
WO2006111412A1 (en) * | 2005-04-22 | 2006-10-26 | Berner Gmbh | Wooden and plastic screw |
KR100755818B1 (en) * | 2005-04-22 | 2007-09-07 | 베르너 게엠베하 | Wood and plastic screw |
AU2006235952B2 (en) * | 2005-04-22 | 2008-03-20 | Berner Gmbh | Wooden and plastic screw |
DE102006002560A1 (en) * | 2006-01-10 | 2007-07-12 | Swg Schraubenwerk Gaisbach Gmbh | Screw with countersunk head, has two surface regions underneath head, of which the first includes depressions and the second includes cutting ridges |
CN101360922B (en) * | 2006-01-12 | 2010-08-25 | Spax国际两合公司 | Self-tapping and thread-forming screw |
US7677854B2 (en) | 2006-01-12 | 2010-03-16 | Spax International Gmbh & Co. Kg | Self-boring and self-tapping screw |
WO2007087904A1 (en) * | 2006-01-12 | 2007-08-09 | Abc Verbindungstechnik Gmbh & Co. Kg | Self-tapping and thread-forming screw |
AU2006337481B2 (en) * | 2006-01-12 | 2010-10-28 | Spax International Gmbh & Co. Kg | Self-tapping and thread-forming screw |
DE102008008074A1 (en) * | 2008-01-29 | 2009-07-30 | Reisser Schraubentechnik Gmbh | Fixing element for fixing e.g. floorboard at substructure, has bar arranged between flanks, and passage borehole i.e. stepped borehole, accommodating fastening screw, where axis of borehole extends perpendicular to sides of flanks |
EP2372177A1 (en) * | 2010-03-30 | 2011-10-05 | Reisser Schraubentechnik GmbH | Chipboard screw |
AT12726U1 (en) * | 2011-04-12 | 2012-10-15 | Sihga Handels Gmbh | SCREW FOR FIXING A WOODEN PART |
DE202012101328U1 (en) | 2011-04-12 | 2012-04-27 | Sihga Handels Gmbh | Screw for fixing a wooden part to a substructure |
CN103890416A (en) * | 2011-08-24 | 2014-06-25 | 新革新合同会社 | Directional indication structure for threaded body |
CN103890416B (en) * | 2011-08-24 | 2017-02-15 | 株式会社NejiLaw | Directional indication structure for threaded body |
CN102996595A (en) * | 2012-12-18 | 2013-03-27 | 庆达科技股份有限公司 | Wood screw |
CN102996595B (en) * | 2012-12-18 | 2015-08-12 | 庆达科技股份有限公司 | Wood screws |
DE102019203869A1 (en) * | 2019-03-21 | 2020-09-24 | Adolf Würth Gmbh & Co Kg | Screw for wood materials |
WO2022034004A1 (en) * | 2020-08-11 | 2022-02-17 | Swg Schraubenwerk Gaisbach Gmbh | Screw for wood, wood-based materials and wood-like materials |
DE102020210174A1 (en) | 2020-08-11 | 2022-02-17 | Swg Schraubenwerk Gaisbach Gmbh | Screw for wood, wood-based materials and wood-like materials |
RU225698U1 (en) * | 2023-12-08 | 2024-05-02 | Сергей Евгеньевич Бояринцев | SCREW WITH COUNTERSET FOR WOODEN STRUCTURES |
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