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DE69404510D1 - Schraube mit spitzbogenförmigen Ende und Verfahren zu seiner Herstellung - Google Patents

Schraube mit spitzbogenförmigen Ende und Verfahren zu seiner Herstellung

Info

Publication number
DE69404510D1
DE69404510D1 DE69404510T DE69404510T DE69404510D1 DE 69404510 D1 DE69404510 D1 DE 69404510D1 DE 69404510 T DE69404510 T DE 69404510T DE 69404510 T DE69404510 T DE 69404510T DE 69404510 D1 DE69404510 D1 DE 69404510D1
Authority
DE
Germany
Prior art keywords
screw
production
pointed arch
rolling step
ogival
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 - Fee Related
Application number
DE69404510T
Other languages
English (en)
Other versions
DE69404510T2 (de
Inventor
Bernard Daviet
Yvon Derriennic
Jean-Luc Walter
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.)
FORMER
Original Assignee
FORMER
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 FORMER filed Critical FORMER
Publication of DE69404510D1 publication Critical patent/DE69404510D1/de
Application granted granted Critical
Publication of DE69404510T2 publication Critical patent/DE69404510T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/54—Making machine elements bolts, studs, or the like with grooves or notches
    • 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
    • F16B35/007—Removing paint or dirt layers covering the threaded part of nut-like members
    • 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
    • F16B35/047—Specially-shaped ends for preventing cross-threading, i.e. preventing skewing of bolt and nut

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Stringed Musical Instruments (AREA)
  • Adornments (AREA)
  • Dowels (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Fuel Cell (AREA)
  • Reinforced Plastic Materials (AREA)
  • Glass Compositions (AREA)
  • Golf Clubs (AREA)
DE69404510T 1993-03-17 1994-02-24 Schraube mit spitzbogenförmigen Ende und Verfahren zu seiner Herstellung Expired - Fee Related DE69404510T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9303092A FR2702689B1 (fr) 1993-03-17 1993-03-17 Vis à extrémité ogivale et procédé d'obtention.

Publications (2)

Publication Number Publication Date
DE69404510D1 true DE69404510D1 (de) 1997-09-04
DE69404510T2 DE69404510T2 (de) 1997-12-04

Family

ID=9445075

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69404510T Expired - Fee Related DE69404510T2 (de) 1993-03-17 1994-02-24 Schraube mit spitzbogenförmigen Ende und Verfahren zu seiner Herstellung

Country Status (5)

Country Link
EP (1) EP0615800B1 (de)
AT (1) ATE156048T1 (de)
DE (1) DE69404510T2 (de)
ES (1) ES2105539T3 (de)
FR (1) FR2702689B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3554306B2 (ja) * 2001-10-11 2004-08-18 株式会社メイドー ボルト及び製造ダイス及び該ボルトの製造方法
US6878069B2 (en) 2003-06-05 2005-04-12 Sps Technologies, Inc. Helical groove fasteners and methods for making same
CN112935176A (zh) * 2020-12-04 2021-06-11 扬州三劦紧固件有限公司 一种圆弧尾端螺栓的加工方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH118382A (de) * 1924-01-17 1927-01-03 Deutsche Werke Ag Verfahren zur Herstellung konischer Stifte, Wellenteile und dergleichen.
GB435304A (en) * 1934-04-24 1935-09-18 British Thomson Houston Co Ltd Improvements in the manufacture of self-tapping screws
DE2122911A1 (de) * 1971-05-10 1972-11-23 Lanarkshire Bolt Ltd., Hamilton, Lanark (Schottland); Kerrigan, William, Ashford, Middlesex (Großbritannien) Bolzenförmiger, gewindeerzeugender Bauteil
JPS5920410B2 (ja) * 1980-10-21 1984-05-12 クラウン精密工業株式会社 自己タツプフオ−ミングねじの成型法
US4411147A (en) * 1981-08-12 1983-10-25 Russell Burdsall & Ward Corporation Rolling dies and method of forming the same
US4724694A (en) * 1984-07-05 1988-02-16 The Fastron Company Method of manufacturing a thread-forming screw

Also Published As

Publication number Publication date
EP0615800B1 (de) 1997-07-30
FR2702689A1 (fr) 1994-09-23
ES2105539T3 (es) 1997-10-16
FR2702689B1 (fr) 1995-06-16
DE69404510T2 (de) 1997-12-04
EP0615800A1 (de) 1994-09-21
ATE156048T1 (de) 1997-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee