DE3508534A1 - Two-piece eccentric screw - Google Patents
Two-piece eccentric screwInfo
- Publication number
- DE3508534A1 DE3508534A1 DE19853508534 DE3508534A DE3508534A1 DE 3508534 A1 DE3508534 A1 DE 3508534A1 DE 19853508534 DE19853508534 DE 19853508534 DE 3508534 A DE3508534 A DE 3508534A DE 3508534 A1 DE3508534 A1 DE 3508534A1
- Authority
- DE
- Germany
- Prior art keywords
- head
- shaft
- screw
- eccentric screw
- eccentric
- 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- Withdrawn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
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011800 void material 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- 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
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
Einleitung + Bescnreibunr, Zweiteilige ExzenterschraubeIntroduction + description, two-part eccentric screw
Schrauben, bei denen der Gewindeschaft zum Kopf nicht in einer Achse liegen, vielmehr der Gewindeschaft zum Kopf außer Mitte liegt haben in der zu beschreibenden Erfindung die Bezeichnung " Exzenterschrauben." Diese Exzenterschrauben sind vorzugsweise im KFZ - Bau vielfach in Verwendung und werden au verschiedene Art hergestellt.Screws in which the threaded shaft to the head is not in one axis lie, rather the threaded shaft to the head is off-center in the to be described Invention called "eccentric screws." These eccentric screws are preferred They are widely used in the automotive industry and are manufactured in various ways.
So können diese aus dem Vollen herausgedreht oder gefräst werden.In this way, these can be turned or milled from the solid.
Außerdem besteht die Möglichkeit des Warmverformens und nach -folgenden mechanischen bearbeitens.There is also the possibility of hot forming and subsequent mechanical machining.
Im ersten Falle ist ein hoher Materialverlust in Kauf zu nehmen, und das Arbeitsverfahren ist kostenaufwendig.In the first case, a high loss of material must be accepted, and the working process is costly.
Im zweiten Falle sind hohe Werkzeugkosten gegeben, die nur bei großer Stückzahlen rentabel sind.In the second case, there are high tool costs, which only apply to large Quantities are profitable.
In beiden Fällen ist das Kriterium der Rißbildung an der Übergangs -stelle zwischen Schaft und Kopf gegeben ( Kerbwirkung und Haarriß -bildung ).In both cases the criterion is crack formation at the transition place between the shaft and head (notch effect and hairline crack formation).
Die erfindungsgemäß konzipierte zweiteilige Exzenterschraube trägt allen negativen Fakten Rechnung.The two-part eccentric screw designed according to the invention carries all negative facts into account.
Die Zerspanung ist qP.rinq, wodurch Materialkosten minimiert werden.The machining is qP.rinq, which minimizes material costs.
Eine Haarrißbildung ist ausgeschlossen, da der Schaft mit seinem Faserverlauf durch den Kopf hindurchgeht.The formation of hairline cracks is impossible because the shaft with its fiber structure going through the head.
Die Fertigungszeit ist yering, da Kopf und Schaft jeweils zentrisch auf einfache Art und Weise gefertigt werden können.The production time is yering because the head and shaft are each centric can be manufactured in a simple manner.
Die erfindungsgemäße Exzenterschraube besteht hier in einem Beispiel als Sechskantschraube dargestellt - aus einem Sechskantkopf ( 1 ) in den exzentrisch ein Loch eigebohrt ist, das den Durchmesser des Schaftes hat. Der Schaft ( 2 ) ist in die Bohrung des Kopfes eingesteckt.The eccentric screw according to the invention consists here in an example Shown as a hexagon screw - from a hexagon head (1) into the eccentric a hole is drilled that has the diameter of the shaft. The shaft (2) is inserted into the hole in the head.
Die Sicherung Schaft zu Kopf hinsichtlich Verdrehen und Zug kann auf vielfältige Weise erfolgen.The securing shaft to head with regard to twisting and pulling can on done in many ways.
Beschreibung . Zweiteilige Exzenterschraube Im dargestellten Beispiel ist der Sewindeschaft ( 2 ) mit einem Senkkopf ausgestatte !,, Im Schraubenkopf ( 1 ) ist diese Senkung analog eingebracht.Description . Two-part eccentric screw In the example shown the sewing shaft (2) is equipped with a countersunk head! ,, In the screw head (1) this lowering is introduced analogously.
Bei Beanspruchung durch Zug stützt sich somit der Senkkopf des Schaftes gegen die Senkung des Schraubenkopfes ab.The countersunk head of the shaft is thus supported when it is subjected to tensile stress against the countersinking of the screw head.
Außerdem hat im dargestellten Beispiel der Senkkopf des Gewinde -schafts eine Fase, die im zusammengebauten Zustand eine umlaufende Vertiefung Zwischen Schrauben - und Schaftkopf sichtbar werden läßt.In addition, in the example shown, the countersunk head of the threaded shank has a chamfer, which in the assembled state a circumferential recess between screws - and the shaft head can be seen.
Diese Vertiefung wird im dargestellten Beispiel zugeschweißt.This recess is welded shut in the example shown.
Die Verschweißung ist eine zusätzliche Sicherung in Zugrichtung, vorzugsweise aber eine Sicherung gegen Verdrehen.The weld is an additional safeguard in the pulling direction, preferably but a safeguard against twisting.
Selbstverständlich sind viefache andere Fertigungsmöglichkeiten mit dieser Erfindung verbunden.Of course, there are many other manufacturing options with associated with this invention.
Der Schaft kann beispielsweise abgesetzt und am oberen Ende gerändel sein. Das gerändelte Stück wird dann in eine zylindrische Bohrung des Schraubenkopfes eingepresst.The shaft can, for example, be stepped and knurled at the upper end be. The knurled piece is then inserted into a cylindrical hole in the screw head pressed in.
Außerdem kann anstelle eines Senkkopfes am Schaft eine beliebig andere Kopfform gewählt werden.In addition, instead of a countersunk head, any other one can be used on the shaft Head shape can be selected.
Auch ein Einschrauben des Schaftes in den Kopf ist möglich usw.It is also possible to screw the shaft into the head, etc.
Primär ist erfindungsgemäß die Konzeption, daß die exzentrische Schraube aus 2 Teilen zusammengefügt ist.According to the invention, the primary concept is that the eccentric screw is assembled from 2 parts.
- Leereite -- void -
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853508534 DE3508534A1 (en) | 1985-03-09 | 1985-03-09 | Two-piece eccentric screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853508534 DE3508534A1 (en) | 1985-03-09 | 1985-03-09 | Two-piece eccentric screw |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3508534A1 true DE3508534A1 (en) | 1986-09-18 |
Family
ID=6264784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853508534 Withdrawn DE3508534A1 (en) | 1985-03-09 | 1985-03-09 | Two-piece eccentric screw |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3508534A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0240613A2 (en) * | 1986-04-11 | 1987-10-14 | KRAUSER Kraftfahrzeug-Zubehör Vertriebs-GmbH | Device for fixing a mounting fixture onto a supporting part such as a motor cycle frame or the like |
US5366329A (en) * | 1992-05-29 | 1994-11-22 | Burgess James R | Drywall hook |
WO1996003587A1 (en) * | 1994-07-22 | 1996-02-08 | Klöber, Johannes | Device to prevent excessive load |
DE102006013633A1 (en) * | 2006-03-22 | 2007-09-27 | Mühlebach, Moritz | Skirting board arrangement, has head located eccentrically to lengthwise center line of connecting element to adjust distance of skirting board to floor within narrow limits in installed state of board by turning elements |
-
1985
- 1985-03-09 DE DE19853508534 patent/DE3508534A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0240613A2 (en) * | 1986-04-11 | 1987-10-14 | KRAUSER Kraftfahrzeug-Zubehör Vertriebs-GmbH | Device for fixing a mounting fixture onto a supporting part such as a motor cycle frame or the like |
EP0240613A3 (en) * | 1986-04-11 | 1988-02-03 | KRAUSER Kraftfahrzeug-Zubehör Vertriebs-GmbH | Device for fixing a mounting fixture onto a supporting part such as a motor cycle frame or the like |
US5366329A (en) * | 1992-05-29 | 1994-11-22 | Burgess James R | Drywall hook |
WO1996003587A1 (en) * | 1994-07-22 | 1996-02-08 | Klöber, Johannes | Device to prevent excessive load |
DE102006013633A1 (en) * | 2006-03-22 | 2007-09-27 | Mühlebach, Moritz | Skirting board arrangement, has head located eccentrically to lengthwise center line of connecting element to adjust distance of skirting board to floor within narrow limits in installed state of board by turning elements |
DE102006013633B4 (en) * | 2006-03-22 | 2011-01-27 | Proverum Ag | Connecting element and mounting kit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |