WO2005011892A1 - Vis presentant une rainure entre le filetage et la tete - Google Patents

Vis presentant une rainure entre le filetage et la tete Download PDF

Info

Publication number
WO2005011892A1
WO2005011892A1 PCT/DE2004/001470 DE2004001470W WO2005011892A1 WO 2005011892 A1 WO2005011892 A1 WO 2005011892A1 DE 2004001470 W DE2004001470 W DE 2004001470W WO 2005011892 A1 WO2005011892 A1 WO 2005011892A1
Authority
WO
WIPO (PCT)
Prior art keywords
undercut
screw
rolling
thread
head
Prior art date
Application number
PCT/DE2004/001470
Other languages
German (de)
English (en)
Inventor
Robert Kupczyk
Reinhold Krieg
Josef Esser
Original Assignee
Textron Verbindungstechnik Gmbh & Co. Ohg
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 Textron Verbindungstechnik Gmbh & Co. Ohg filed Critical Textron Verbindungstechnik Gmbh & Co. Ohg
Priority to DE112004001884T priority Critical patent/DE112004001884D2/de
Publication of WO2005011892A1 publication Critical patent/WO2005011892A1/fr

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
    • F16B35/048—Specially-shaped necks

Definitions

  • the present invention relates to a screw with a recess between thread and head and a method for producing such a screw.
  • this undercut is produced by machining processes, usually by turning.
  • the diameter of this undercut is usually below the core diameter of the screw thread.
  • the machined undercut causes a weakening of the dynamic durability of the screw in this area. This is primarily due to the fact that the grain that is created during the non-cutting shaping is destroyed during the machining in this area. In addition, material hardening, which have resulted from the non-cutting shaping during manufacture of the S chraube, destroyed. In addition, the corresponding machining step for producing the undercut leads to additional costs, since this manufacturing step must be carried out on a separate machine.
  • the undercut is produced by rolling or rolling.
  • this object is also achieved by a method for producing a screw with an undercut between the thread and the head, in which the undercut is produced by rolling or rolling.
  • the rolling or rolling of the undercut is carried out simultaneously with the rolling or rolling of the thread or on the same machine as the rolling or rolling of the thread.
  • the undercut is even rolled to further strengthen the rolled area, which surprisingly further improves the fatigue strength of the screw between head and thread. This also improves the static strength.
  • screws according to the invention break during a load test within the thread and not at the undercut.
  • the present invention can be used particularly advantageously if the rolling of the undercut is carried out together with the rolling of the thread. In this way, the production of corresponding screws can be significantly accelerated and cheaper, since both work steps can be carried out simultaneously on the same machine. inventions Accordingly, the strength of the screw is improved and at the same time the manufacturing costs are reduced.
  • FIGURE 1 a screw according to the invention from the side;
  • FIGURE 2 shows a detailed representation of the undercut of the screw according to the invention from FIG. 1;
  • FIGURE 3 another screw according to the invention.
  • FIGURE 4 shows a detail of a screw according to the invention according to FIG. 3.
  • FIGS. 1 to 4 each show a screw 10 with an undercut 12 between a thread 14 and a head 16.
  • the undercut 12 is not produced here by machining processes, but rather by rolling.
  • the undercut is preferably rolled simultaneously and on the same Machine like thread rolling 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Forging (AREA)

Abstract

L'invention concerne une vis (10) présentant une rainure (12) entre le filetage (14) et la tête (16), ladite rainure (12) étant obtenue par laminage ou roulage.
PCT/DE2004/001470 2003-07-25 2004-07-08 Vis presentant une rainure entre le filetage et la tete WO2005011892A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004001884T DE112004001884D2 (de) 2003-07-25 2004-07-08 Schraube mit Freistich zwischen Gewinde und Kopf.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20311466.3 2003-07-25
DE20311466U DE20311466U1 (de) 2003-07-25 2003-07-25 Schraube mit Freistich zwischen Gewinde und Kopf

Publications (1)

Publication Number Publication Date
WO2005011892A1 true WO2005011892A1 (fr) 2005-02-10

Family

ID=29558051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001470 WO2005011892A1 (fr) 2003-07-25 2004-07-08 Vis presentant une rainure entre le filetage et la tete

Country Status (3)

Country Link
DE (2) DE20311466U1 (fr)
TW (1) TW200504294A (fr)
WO (1) WO2005011892A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015005347A1 (fr) * 2013-07-08 2015-01-15 株式会社トープラ Composant de vis
CN109578416A (zh) * 2017-09-25 2019-04-05 加特可株式会社 螺栓及零件固定构造以及零件固定方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2922588B1 (fr) * 2007-10-22 2013-11-01 Snecma Disque ou tambour de rotor d'une turbomachine
CN103557219B (zh) * 2013-11-13 2015-09-30 东方蓝天钛金科技有限公司 轻型螺栓紧固件、其加工方法与模具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204566A (en) * 1978-02-10 1980-05-27 Textron Inc. Screw and captive compression spring fastener assembly
EP0271648A1 (fr) * 1986-11-21 1988-06-22 Alfons Knoche Système pour fixer des plaques de façade à une sous-construction
JPH01104434A (ja) * 1987-10-19 1989-04-21 Toyota Motor Corp コネクティングロッドボルトの製造方法
DE9016087U1 (fr) * 1990-02-09 1991-03-21 Mueller, Roland, 4050 Moenchengladbach, De
JPH04143034A (ja) * 1990-10-03 1992-05-18 Toyota Motor Corp テンションボルトの製造方法
US5810670A (en) * 1995-08-08 1998-09-22 Tsuda Kogyo Kabushiki Kaisha Method of manufacturing connector bolt
DE19722310A1 (de) * 1997-05-28 1998-12-03 Jung Pee Wee Kaltform & Rohrbe Kaltwalzmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204566A (en) * 1978-02-10 1980-05-27 Textron Inc. Screw and captive compression spring fastener assembly
EP0271648A1 (fr) * 1986-11-21 1988-06-22 Alfons Knoche Système pour fixer des plaques de façade à une sous-construction
JPH01104434A (ja) * 1987-10-19 1989-04-21 Toyota Motor Corp コネクティングロッドボルトの製造方法
DE9016087U1 (fr) * 1990-02-09 1991-03-21 Mueller, Roland, 4050 Moenchengladbach, De
JPH04143034A (ja) * 1990-10-03 1992-05-18 Toyota Motor Corp テンションボルトの製造方法
US5810670A (en) * 1995-08-08 1998-09-22 Tsuda Kogyo Kabushiki Kaisha Method of manufacturing connector bolt
DE19722310A1 (de) * 1997-05-28 1998-12-03 Jung Pee Wee Kaltform & Rohrbe Kaltwalzmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 318 (M - 852) 19 July 1989 (1989-07-19) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 422 (M - 1305) 4 September 1992 (1992-09-04) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015005347A1 (fr) * 2013-07-08 2015-01-15 株式会社トープラ Composant de vis
CN105378303A (zh) * 2013-07-08 2016-03-02 株式会社托普拉 螺栓部件
JPWO2015005347A1 (ja) * 2013-07-08 2017-03-02 株式会社トープラ ねじ部品
US9752609B2 (en) 2013-07-08 2017-09-05 Topura Co., Ltd. Threaded fastener
CN109578416A (zh) * 2017-09-25 2019-04-05 加特可株式会社 螺栓及零件固定构造以及零件固定方法

Also Published As

Publication number Publication date
DE112004001884D2 (de) 2006-06-14
TW200504294A (en) 2005-02-01
DE20311466U1 (de) 2003-11-13

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