DE19916206A1 - Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point - Google Patents

Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point

Info

Publication number
DE19916206A1
DE19916206A1 DE1999116206 DE19916206A DE19916206A1 DE 19916206 A1 DE19916206 A1 DE 19916206A1 DE 1999116206 DE1999116206 DE 1999116206 DE 19916206 A DE19916206 A DE 19916206A DE 19916206 A1 DE19916206 A1 DE 19916206A1
Authority
DE
Germany
Prior art keywords
tip
screw
bolt
waisted
weak point
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Withdrawn
Application number
DE1999116206
Other languages
German (de)
Inventor
Helmut Reichelt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE1999116206 priority Critical patent/DE19916206A1/en
Publication of DE19916206A1 publication Critical patent/DE19916206A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F16B35/044—Specially-shaped ends

Abstract

A bolt is employed as a fixture in conjunction with a nut. The bolt has a tapered tip (2) which serves to facilitate easy fitting through a pre-drilled hole, following which the nut is applied and tightened. The bolt shank (1) is linked to the tip (2) via a waisted (3) weak point. The tip has a groove (4) to receive a screwdriver.

Description

Die Erfindung betrifft eine Schraube mit einer Einschraubspitze.The invention relates to a screw with a Screw-in tip.

Derartige Schrauben sind allgemein bekannt. Die Einschraubspitze erleichtert das Aufsetzen und Aufschrauben einer Gewindemutter oder eines ähnlichen Teiles mit einem Innengewinde auf die betreffende Schraube.Such screws are generally known. The Screw-in tip makes it easier to put on and screw on a threaded nut or a similar part with a Internal thread on the screw in question.

Die Erfindung beschäftigt sich mit dem Problem, den in Längsrichtung der Schraube durch die Schraube eingenommenen Bauraum durch die bei der fertiggestellten Verschraubung funktionslos gewordene Einschraubspitze nicht unnötig zu vergrößern.The invention deals with the problem that in Longitudinal direction of the screw occupied by the screw Installation space due to the screw connection screw-in tip that has become inoperative enlarge.

Zu diesem Zweck ist erfindungsgemäß in dem Übergangsbereich zwischen Einschraubspitze und Schraubgewinde eine . Sollbruchstelle vorgesehen, durch die die Einschraubspitze bei einer Schraubverbindung in funktionslos gewordenem Zustand einfach abtrennbar ist.For this purpose, according to the invention is in the transition area between screw-in tip and screw thread. A predetermined breaking point is provided through which the screw-in tip at a screw connection in a functionless state is easy to separate.

Bei einer zweckmäßigen Ausgestaltung der Erfindung nach den Merkmalen des Patentanspruchs 2 kann die Einschraubspitze bei einer auf die Schraube aufgesetzten Mutter als dann funktionsloses Teil einfach abgedreht werden.In an expedient embodiment of the invention according to the Features of claim 2, the screw-in tip a nut put on the screw than then functionless part can simply be turned off.

Ein zweckmäßiges Verfahren zum Abdrehen der nach einer erfolgten Verschraubung funktionslos gewordenen Einschraubspitze zeigt der Anspruch 3 auf. An expedient procedure for turning off after a screwing that has become inoperative Screw-in tip shows the claim 3.  

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is in the drawing shown.

In dieser zeigtIn this shows

Fig. 1 die Ansicht des freien Endes einer Gewindeschraube mit einer angeformten Einschraubspitze. Fig. 1 shows the view of the free end of a threaded screw with a molded screw-in tip.

An das freie Ende des Gewindes einer Schraube 1 grenzt eine Einschraubspitze 2 an.A screw-in tip 2 is adjacent to the free end of the thread of a screw 1 .

Die Anschraubspitze 1 ist in an sich üblicher Weise ausgebildet, um das Aufsetzen und Ausrichten einer auf die Schraube 1 aufzuschraubenden - nicht dargestellten - Gewindemutter zu erleichtern.The screw-on tip 1 is designed in a conventional manner in order to facilitate the fitting and alignment of a threaded nut (not shown) to be screwed onto the screw 1 .

Um die Einschraubspitze 2 bei aufgeschraubter Gewindemutter, das heißt wenn diese Einschraubspitze 2 funktionslos geworden ist, entfernen zu können, ist eine umlaufende Rille 3 in dem Übergangsbereich zwischen der Einschraubspitze 2 und dem tragenden Gewinde der Schraube 1 vorgesehen.In order to be able to remove the screw-in tip 2 when the threaded nut is screwed on, that is to say when this screw-in tip 2 has become inoperative, a circumferential groove 3 is provided in the transition region between the screw-in tip 2 and the supporting thread of the screw 1 .

Das Entfernen der Einschraubspitze 2 bei einer fertiggestellten Verschraubung ist zur Bauraumminimierung erwünscht.The removal of the screw-in tip 2 when the screw connection has been completed is desirable in order to minimize installation space.

Die einfachste Art, die funktionslos gewordene Einschraubspitze 2 zu entfernen, besteht in einem Abschlagen mittels eines Abschlagwerkzeuges.The simplest way of removing the screw-in tip 2 which has become inoperative is to knock it off using a knock-off tool.

Eine elegantere Methode besteht darin, die Einschraubspitze 2 mit Angriffsflächen zu versehen, an denen ein sich drehendes Werkzeug verdrehfest angreifen kann. Eine solche Angriffsfläche kann beispielsweise durch einen einfachen oder einen Kreuzschlitz 4 in der Stirnfläche der Einschraubspitze realisiert sein. In einem solchen Fall kann Schraubwerkzeug verwendet werden, in das eine an der Einschraubspitze 2 verdrehfest angreifende Momentenstütze integriert ist. Bei aufgeschraubter Gewindemutter kann dann mit Hilfe einer dem Aufschraubdrehsinn entgegengesetzten Drehrichtung erfolgenden Drehung dieser Momentenstütze die Einschraubspitze 2 in der durch die Rille 3 gebildeten Sollbruchstelle einfach abgedreht werden.A more elegant method is to provide the screw-in tip 2 with engagement surfaces on which a rotating tool can grip in a torsion-proof manner. Such an attack surface can be realized, for example, by a simple or a cross slot 4 in the end face of the screw-in tip. In such a case, screwing tools can be used, in which a torque support, which engages in a torque-proof manner on the screw-in tip 2 , is integrated. When the threaded nut is screwed on, the screw-in tip 2 can then simply be twisted off in the predetermined breaking point formed by the groove 3 with the aid of a rotation of this torque support that is opposite to the screw-on direction of rotation.

Claims (3)

1. Schraube mit einer Einschraubspitze, dadurch gekennzeichnet, daß in demjenigen Bereich, in dem die Einschraubspitze (2) in das Gewinde der Schraube (1) übergeht, eine Sollbruchstelle (3) vorgesehen ist.1. Screw with a screw-in tip, characterized in that a predetermined breaking point ( 3 ) is provided in the area in which the screw-in tip ( 2 ) merges into the thread of the screw ( 1 ). 2. Schraube nach Anspruch 1, dadurch gekennzeichnet, daß an der Einschraubspitze (2) ein Bereich für einen durch Formschluß verdrehfesten Angriff eines Werkzeuges ausgebildet ist.2. Screw according to claim 1, characterized in that an area is formed on the screw-in tip ( 2 ) for a non-rotatable attack by a tool. 3. Verfahren zum Aufschrauben einer Gewindemutter oder eines ähnlichen mit einem Innengewinde versehenen Teiles auf eine mit einer Einschraubspitze nach einem der Ansprüche 1 oder 2 versehenen Einschraubspitze mit einem Schraubwerkzeug, dadurch gekennzeichnet, daß das Schraubwerkzeug die Einschraubspitze (2), sobald diese bei aufgeschraubter Gewindemutter ihre Funktion erfüllt hat, formschlüssig erfaßt und innerhalb der Sollbruchstelle (3) abdreht.3. A method for screwing a threaded nut or a similar part provided with an internal thread onto a screw-in tip provided with a screw-in tip according to one of claims 1 or 2, with a screwing tool, characterized in that the screw-type tool has the screw-in tip ( 2 ) as soon as it has been screwed on with the threaded nut has fulfilled its function, has a positive fit and has turned within the predetermined breaking point ( 3 ).
DE1999116206 1999-04-10 1999-04-10 Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point Withdrawn DE19916206A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999116206 DE19916206A1 (en) 1999-04-10 1999-04-10 Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999116206 DE19916206A1 (en) 1999-04-10 1999-04-10 Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point

Publications (1)

Publication Number Publication Date
DE19916206A1 true DE19916206A1 (en) 2000-06-15

Family

ID=7904126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999116206 Withdrawn DE19916206A1 (en) 1999-04-10 1999-04-10 Threaded bolt fixture with removable tip, having bolt shank linked to the tip via a waisted weak point

Country Status (1)

Country Link
DE (1) DE19916206A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2174023A2 (en) * 2007-08-06 2010-04-14 Nancy Tedeschi Screw with breakaway and methods of using the same
DE102014213880A1 (en) * 2014-07-16 2016-01-21 Aktiebolaget Skf Bearing ring of a bearing, in particular a rolling bearing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019040A1 (en) * 1970-04-21 1971-11-11 Hettmannsperger H screw
GB2115510A (en) * 1982-02-12 1983-09-07 Cases Jose Verges Screw shortenable without damaging the thread
EP0116645B1 (en) * 1982-03-24 1987-07-22 Nissan Motor Co., Ltd. Bolt adapted for one-sided tightening with tightening tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019040A1 (en) * 1970-04-21 1971-11-11 Hettmannsperger H screw
GB2115510A (en) * 1982-02-12 1983-09-07 Cases Jose Verges Screw shortenable without damaging the thread
EP0116645B1 (en) * 1982-03-24 1987-07-22 Nissan Motor Co., Ltd. Bolt adapted for one-sided tightening with tightening tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2174023A2 (en) * 2007-08-06 2010-04-14 Nancy Tedeschi Screw with breakaway and methods of using the same
EP2174023A4 (en) * 2007-08-06 2012-12-26 Nancy Tedeschi Screw with breakaway and methods of using the same
EP2843247A1 (en) * 2007-08-06 2015-03-04 Nancy Tedeschi Screw with breakaway and methods of using same
US8997327B2 (en) 2007-08-06 2015-04-07 Fbb Asset Management Limited Partnership Screw with breakaway and methods of using the same
US9493972B2 (en) 2007-08-06 2016-11-15 Fbb Asset Management Limited Partnership Screw with breakaway and methods of using the same
DE102014213880A1 (en) * 2014-07-16 2016-01-21 Aktiebolaget Skf Bearing ring of a bearing, in particular a rolling bearing
DE102014213880B4 (en) * 2014-07-16 2016-04-07 Aktiebolaget Skf Bearing ring of a bearing, in particular a rolling bearing

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal