ATE156048T1 - Schraube mit spitzbogenförmigen ende und verfahren zu seiner herstellung - Google Patents

Schraube mit spitzbogenförmigen ende und verfahren zu seiner herstellung

Info

Publication number
ATE156048T1
ATE156048T1 AT94400403T AT94400403T ATE156048T1 AT E156048 T1 ATE156048 T1 AT E156048T1 AT 94400403 T AT94400403 T AT 94400403T AT 94400403 T AT94400403 T AT 94400403T AT E156048 T1 ATE156048 T1 AT E156048T1
Authority
AT
Austria
Prior art keywords
screw
ogular
producing
rolling step
ogival
Prior art date
Application number
AT94400403T
Other languages
English (en)
Inventor
Bernard Daviet
Yvon Derriennic
Jean-Luc Walter
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
Application granted granted Critical
Publication of ATE156048T1 publication Critical patent/ATE156048T1/de

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)
  • Fuel Cell (AREA)
  • Reinforced Plastic Materials (AREA)
  • Glass Compositions (AREA)
  • Golf Clubs (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
AT94400403T 1993-03-17 1994-02-24 Schraube mit spitzbogenförmigen ende und verfahren zu seiner herstellung ATE156048T1 (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 (1)

Publication Number Publication Date
ATE156048T1 true ATE156048T1 (de) 1997-08-15

Family

ID=9445075

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94400403T ATE156048T1 (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 (2)

* 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

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
FR2702689A1 (fr) 1994-09-23
ES2105539T3 (es) 1997-10-16
EP0615800A1 (de) 1994-09-21
DE69404510D1 (de) 1997-09-04
EP0615800B1 (de) 1997-07-30
FR2702689B1 (fr) 1995-06-16
DE69404510T2 (de) 1997-12-04

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee