DE60311722D1 - Bolzen und Walzbacken - Google Patents

Bolzen und Walzbacken

Info

Publication number
DE60311722D1
DE60311722D1 DE60311722T DE60311722T DE60311722D1 DE 60311722 D1 DE60311722 D1 DE 60311722D1 DE 60311722 T DE60311722 T DE 60311722T DE 60311722 T DE60311722 T DE 60311722T DE 60311722 D1 DE60311722 D1 DE 60311722D1
Authority
DE
Germany
Prior art keywords
dies
bolts
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 - Lifetime
Application number
DE60311722T
Other languages
English (en)
Other versions
DE60311722T2 (de
Inventor
Takashi Kato
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.)
Meidoh Co Ltd
Original Assignee
Meidoh Co Ltd
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 Meidoh Co Ltd filed Critical Meidoh Co Ltd
Publication of DE60311722D1 publication Critical patent/DE60311722D1/de
Application granted granted Critical
Publication of DE60311722T2 publication Critical patent/DE60311722T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21H3/022—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies
    • 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)
  • Clamps And Clips (AREA)
DE2003611722 2002-09-27 2003-09-24 Bolzen und Walzbacken Expired - Lifetime DE60311722T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002320542 2002-09-27
JP2002320542A JP3797316B2 (ja) 2002-09-27 2002-09-27 ボルト及び製造ダイス

Publications (2)

Publication Number Publication Date
DE60311722D1 true DE60311722D1 (de) 2007-03-29
DE60311722T2 DE60311722T2 (de) 2007-06-14

Family

ID=32025607

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003611722 Expired - Lifetime DE60311722T2 (de) 2002-09-27 2003-09-24 Bolzen und Walzbacken

Country Status (3)

Country Link
EP (1) EP1408245B1 (de)
JP (1) JP3797316B2 (de)
DE (1) DE60311722T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI615555B (zh) * 2013-11-04 2018-02-21 鴻海精密工業股份有限公司 螺紋緊固件及其螺接方法
EP3540244B1 (de) * 2016-11-11 2021-07-21 Meidoh Co., Ltd. Bolzen
US11365758B2 (en) 2017-03-23 2022-06-21 Meidoh Co., Ltd. Bolt
JP6822462B2 (ja) * 2018-01-26 2021-01-27 Ｊｆｅスチール株式会社 鋼管のねじ継手

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320467A (en) * 1993-05-20 1994-06-14 General Electric Company Positive thread start fastener
JP3048317B2 (ja) * 1995-06-13 2000-06-05 株式会社青山製作所 ボルト及びこのボルトとナットを用いた締結装置
JPH1122713A (ja) * 1997-07-07 1999-01-26 Meidoo:Kk ボルト及びその製造方法
JP2002213425A (ja) * 2000-11-14 2002-07-31 Meidoo:Kk ボルト

Also Published As

Publication number Publication date
EP1408245B1 (de) 2007-02-14
JP2004116771A (ja) 2004-04-15
JP3797316B2 (ja) 2006-07-19
EP1408245A1 (de) 2004-04-14
DE60311722T2 (de) 2007-06-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition