FR2248683A7 - Flexible tube bending support mandrel - has mutually interlocking spherical links, which prevent tube buckling - Google Patents

Flexible tube bending support mandrel - has mutually interlocking spherical links, which prevent tube buckling

Info

Publication number
FR2248683A7
FR2248683A7 FR7342004A FR7342004A FR2248683A7 FR 2248683 A7 FR2248683 A7 FR 2248683A7 FR 7342004 A FR7342004 A FR 7342004A FR 7342004 A FR7342004 A FR 7342004A FR 2248683 A7 FR2248683 A7 FR 2248683A7
Authority
FR
France
Prior art keywords
tube
bending support
prevent
support mandrel
buckling
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
Application number
FR7342004A
Other languages
English (en)
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.)
IND MECCA BREV PEDRAZZOLI
Original Assignee
IND MECCA BREV PEDRAZZOLI
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 IND MECCA BREV PEDRAZZOLI filed Critical IND MECCA BREV PEDRAZZOLI
Application granted granted Critical
Publication of FR2248683A7 publication Critical patent/FR2248683A7/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
FR7342004A 1973-08-30 1973-11-26 Flexible tube bending support mandrel - has mutually interlocking spherical links, which prevent tube buckling Expired FR2248683A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2836573A IT993825B (it) 1973-08-30 1973-08-30 Mandrino articolato per curvare tubi

Publications (1)

Publication Number Publication Date
FR2248683A7 true FR2248683A7 (en) 1975-05-16

Family

ID=11223459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342004A Expired FR2248683A7 (en) 1973-08-30 1973-11-26 Flexible tube bending support mandrel - has mutually interlocking spherical links, which prevent tube buckling

Country Status (3)

Country Link
DE (1) DE2358756A1 (fr)
FR (1) FR2248683A7 (fr)
IT (1) IT993825B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488867A1 (fr) * 2003-06-19 2004-12-22 Kabushiki Kaisha Opton Mandrin à cintrer

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000170C2 (de) * 1980-01-04 1984-09-06 W. Eckold AG, Trimmis Dorn für ein zu biegendes Rohr
DE3618701A1 (de) * 1986-06-04 1987-12-10 Spaeth Gmbh & Co Kg Stahlbau B Verfahren und vorrichtung zum kaltumformen von profilen aus eisen- und nichteisenmetallen
DE3634654A1 (de) * 1986-10-10 1988-04-21 Norsk Hydro As Hohlprofile aus nichteisenmetallen und deren legierungen mit kaltverformten biegungen, sowie verfahren und vorrichtung zu deren herstellung
AT402479B (de) * 1994-04-12 1997-05-26 Erne Fittings Gmbh & Co Verfahren und vorrichtung zum biegen von hohlprofil-werkstücken
US8870233B2 (en) 2007-07-03 2014-10-28 S.P.M. Flow Control, Inc. Swivel joint with uniform ball bearing requirements
EP2422120B1 (fr) 2009-04-20 2016-05-25 S.P.M. Flow Control, Inc. Soupape à languette de conduite d'écoulement
EA201171356A1 (ru) 2009-06-03 2012-05-30 Эс.Пи.Эм.ФЛОУ КОНТРОЛ, ИНК. Индикатор запорного клапана
WO2014028498A2 (fr) 2012-08-16 2014-02-20 S.P.M. Flow Control, Inc. Robinet à tournant avec segments de joint préchargés
US9322243B2 (en) 2012-08-17 2016-04-26 S.P.M. Flow Control, Inc. Automated relief valve control system and method
US9273543B2 (en) 2012-08-17 2016-03-01 S.P.M. Flow Control, Inc. Automated relief valve control system and method
USD707332S1 (en) 2013-03-15 2014-06-17 S.P.M. Flow Control, Inc. Seal assembly
USD707797S1 (en) 2013-03-15 2014-06-24 S.P.M. Flow Control, Inc. Seal segment
US9568138B2 (en) 2013-07-01 2017-02-14 S.P.M. Flow Control, Inc. Manifold assembly
CN107850243A (zh) 2015-06-15 2018-03-27 S.P.M.流量控制股份有限公司 具有增加壁厚的全根部半径螺纹蝶型螺母
US10677365B2 (en) 2015-09-04 2020-06-09 S.P.M. Flow Control, Inc. Pressure relief valve assembly and methods
CN109201806B (zh) * 2018-09-14 2023-06-27 浙江万丰金马逊科技有限公司 一种矩形管弯曲成形用齿轮链式芯棒
CN109201807B (zh) * 2018-09-14 2023-06-27 浙江万丰金马逊科技有限公司 一种圆形管弯曲成形用齿轮链式芯棒
CN113000653B (zh) * 2021-02-04 2023-03-31 东莞市新美洋技术有限公司 加工弯管用芯棒

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488867A1 (fr) * 2003-06-19 2004-12-22 Kabushiki Kaisha Opton Mandrin à cintrer

Also Published As

Publication number Publication date
DE2358756A1 (de) 1975-03-20
IT993825B (it) 1975-09-30

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Legal Events

Date Code Title Description
ST Notification of lapse