DE202007015912U1 - wood screw - Google Patents
wood screw Download PDFInfo
- Publication number
- DE202007015912U1 DE202007015912U1 DE200720015912 DE202007015912U DE202007015912U1 DE 202007015912 U1 DE202007015912 U1 DE 202007015912U1 DE 200720015912 DE200720015912 DE 200720015912 DE 202007015912 U DE202007015912 U DE 202007015912U DE 202007015912 U1 DE202007015912 U1 DE 202007015912U1
- Authority
- DE
- Germany
- Prior art keywords
- zones
- wood screw
- screw according
- notches
- threaded portion
- 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 abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 3
- 238000007373 indentation Methods 0.000 claims 2
- 239000000463 material Substances 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 230000035515 penetration Effects 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
- F16B25/0052—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
-
- 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
- F16B25/0068—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 with multiple-threads, e.g. a double thread screws
Abstract
Eine Holzschraube (1), die einen Kopf (11), und einen Schaft (12) mit einem glatten Abschnitt und einem Gewindeabschnitt aufweist, wobei der Gewindeabschnitt einen zylindrisches Teil (121) und einen konisches Teil (122) mit einer Spitze umfaßt, dadurch gekennzeichnet, daß der Gewindeabschnitt (12) in seiner jeden Windung (13, 14) abwechselnd erste Zonen (131, 141) zur Spanabführung und zweite Zonen (132, 142) zum erleichterten Einschnitt aufweist, wobei jede der ersten Zonen (131, 141) durch nebeneinander angeordnete Einkerbungen (1311, 1411) der Windung (13, 14) und jede der zweiten Zonen (132, 142) durch die daran anschließende verbleibende Schneidekante gebildet ist.A Wood screw (1) having a head (11), and a shaft (12) with a smooth portion and a threaded portion, wherein the threaded portion has a cylindrical part (121) and a conical part (122) with a tip, characterized in that the Thread portion (12) in its each turn (13, 14) alternately first zones (131, 141) for chip removal and second zones (132, 132) 142) for facilitating incision, each of the first Zones (131, 141) by juxtaposed notches (1311, 1411) of the winding (13, 14) and each of the second zones (132, 142) through the subsequent remaining cutting edge is formed.
Description
[Technisches Gebiet][Technical area]
Die Erfindung betrifft eine Holzschraube nach dem Oberbegriff des Anspruchs 1.The The invention relates to a wood screw according to the preamble of the claim 1.
[Stand der Technik][State of the art]
Eine
Holzschraube findet Verwendung zur Befestigung oder zur Verbindung
von Werkstücken.
Die bekannte Holzschraube hat die folgenden Nachteile:
- 1) Es gibt bei der Holzschraube kein Mittel zur Spanabführung/-abtragung während ihres Einschneidens/-schraubens. Die erzeugten Späne stauen sich in der Einbohrung und werden immer kompakter zusammengedrückt, was zur Folge hat, daß der Widerstand der Einbohrung mit zunehmender Einbohrungstiefe stark steigt.
- 2) Der weitere Einschnitt in das Material des Werkstücks nach
Eindringen der Spitze
322 erfolgt lediglich durch die als Schneidkante ausgebildete scharfe Gewindespitze des Gewindes33 . Es gibt kein Hilfsmittel zur Erleichterung des Einschnittes entlang des Gewindegangs. - 3) Infolge der Kompaktierung der abgehobenden Späne wird der Innendruck im Werkstück erheblich erhöht. Dies kann zur Rißbildung im Werkstück führen kann.
- 1) There is no means of chip removal / removal on the wood screw during its cutting / screwing. The generated chips accumulate in the bore and are compacted more and more compact, with the result that the resistance of the drilling increases sharply with increasing Einbohrungstiefe.
- 2) The further incision in the material of the workpiece after penetration of the tip
322 takes place only by the trained as a cutting edge sharp thread crest of the thread33 , There is no aid to facilitate the incision along the thread. - 3) As a result of the compaction of abgehobenden chips, the internal pressure in the workpiece is significantly increased. This can lead to cracking in the workpiece.
Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zugrunde, eine Holzschraube mit Hilfsmittel sowohl zur Spanabführung als auch zur Erleichterung des Einschnittes entlang ihres Gewindegangs zu schaffen, wodurch eine bemührungslose Einbohrung/-schraubung erreicht wird.Here The invention aims to remedy this. The invention is the task based, a wood screw with tools both for chip removal as also to facilitate the incision along its thread to create, making a hands-free Drilling is achieved.
Diese Aufgabe wird erfindungsgemäß dadruch gelöst, daß das zylindrische Teil des Gewindeabschnitts der Holzschraube in seiner jeden Windung abwechselnd erste Zonen zur Spanabführung und zweite Zonen zum erleichterten Einschnitt aufweist, wobei jede der ersten Zonen durch nebeneinander angeordnete Einkerbungen der Windung und jede der zweiten Zonen durch die daran anschließende Schneidekante gebildet ist. Auf diese Weise wird beim Einbohrung/-schraubung während des Eindringens einer Windung eine gewiße Menge von Span vom Einbohrungsweg durch die eintretende erste Zone herausgetragen, wodurch das Material des Werkstücks "entspannt" wird. Dies erleichtert den daran anschließenden Einschnitt von der nachfolgenden zweiten Zone einerseits, und vermeidet die Gefahr einer Rißbildung anderseits.These Task is dadruch according to the invention solved, that this cylindrical part of the threaded portion of the wood screw in his each turn alternately first zones for chip removal and second Zoned relief zones, wherein each of the first Zones by juxtaposed notches of the winding and each of the second zones is formed by the adjoining cutting edge is. In this way, when drilling / screwing during the Penetrate a turn a certain amount of chip from the boring path carried out by the entering first zone, causing the material of the workpiece is "relaxed". This facilitates the subsequent Incision of the subsequent second zone on the one hand, and avoids the risk of cracking on the other hand.
Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten bevorzugten Ausführungsformen näher erläutert. Es zeigen: The Invention will now be described with reference to the drawing preferred embodiments explained in more detail. It demonstrate:
[Zeichnung][Drawing]
[Erläuterung der bevorzugten Ausführungsformen][Explanation of preferred embodiments]
Die
Besonderheit der Erfindung besteht darin, daß das zylindrische Teil
Bei
Einbohrung/Eindrehung in das Material eines Werkstucks entsteht
in der Einbohrung zwischen einer ersten Zone
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW95220990U TWM310959U (en) | 2006-11-29 | 2006-11-29 | Improved structure of a wood screw |
TW095220990 | 2006-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007015912U1 true DE202007015912U1 (en) | 2008-01-10 |
Family
ID=38742095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200720015912 Expired - Lifetime DE202007015912U1 (en) | 2006-11-29 | 2007-11-14 | wood screw |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE202007015912U1 (en) |
TW (1) | TWM310959U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2574800A1 (en) * | 2011-09-27 | 2013-04-03 | Peak Innovation Limited | Screw |
EP2728209A1 (en) * | 2012-11-05 | 2014-05-07 | Harald Göttlich | Thread moulding screw |
-
2006
- 2006-11-29 TW TW95220990U patent/TWM310959U/en not_active IP Right Cessation
-
2007
- 2007-11-14 DE DE200720015912 patent/DE202007015912U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2574800A1 (en) * | 2011-09-27 | 2013-04-03 | Peak Innovation Limited | Screw |
EP2728209A1 (en) * | 2012-11-05 | 2014-05-07 | Harald Göttlich | Thread moulding screw |
Also Published As
Publication number | Publication date |
---|---|
TWM310959U (en) | 2007-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1970576B1 (en) | Screw forming a thread without cutting chips | |
DE69819969T2 (en) | Drills with flutes with alternating helical and straight sections | |
DE102010006796B4 (en) | Method of making a drill, and drills | |
EP1864736B1 (en) | Thread tapping tool with edge transition | |
DE102006034584A1 (en) | Hole and thread forming screw | |
DE102009029715A1 (en) | Tool for machining workpieces | |
DE3108438C2 (en) | Drilling tool | |
EP1795768A1 (en) | Thread tapping screw, in particular concrete screw | |
DE102005029758B3 (en) | Interface of a tool system | |
EP0939235B1 (en) | Screw | |
DE2064024B2 (en) | DRILL | |
EP0975877A1 (en) | Drilling and threading fastening | |
DE102006032005B4 (en) | Tool with changing groove twist angle | |
DE112006004174T5 (en) | Spiral fluted tap | |
EP2522864B1 (en) | Wood or plastic screw | |
DE202007015912U1 (en) | wood screw | |
DE102005057996B4 (en) | Root canal instrument | |
CH709766A2 (en) | Drilling tool. | |
EP1972398A1 (en) | Spiral drill | |
WO2021119708A1 (en) | Screw drive | |
EP0733430A1 (en) | Thread milling cutter | |
EP2915613A1 (en) | Cross hole countersink | |
DE102019200692A1 (en) | Machine tool | |
EP1598027A1 (en) | Set of endodontic instruments | |
EP0940228B1 (en) | Screw extractor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20080214 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20110209 |
|
R082 | Change of representative |
Representative=s name: LANGPATENT ANWALTSKANZLEI IP LAW FIRM, DE |
|
R151 | Term of protection extended to 8 years | ||
R151 | Term of protection extended to 8 years |
Effective date: 20131008 |
|
R158 | Lapse of ip right after 8 years |