WO1987007928A1 - Ecrou composite - Google Patents

Ecrou composite Download PDF

Info

Publication number
WO1987007928A1
WO1987007928A1 PCT/NO1987/000048 NO8700048W WO8707928A1 WO 1987007928 A1 WO1987007928 A1 WO 1987007928A1 NO 8700048 W NO8700048 W NO 8700048W WO 8707928 A1 WO8707928 A1 WO 8707928A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
main
combi
halves
lock
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.)
Ceased
Application number
PCT/NO1987/000048
Other languages
English (en)
Inventor
Harald Kolvereid
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.)
Individual
Original Assignee
Individual
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
Priority claimed from NO862444A external-priority patent/NO862444L/no
Application filed by Individual filed Critical Individual
Publication of WO1987007928A1 publication Critical patent/WO1987007928A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
    • F16B37/0871—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut engaging the bolt laterally, i.e. without the need to engage the end of the bolt
    • F16B37/0892—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut engaging the bolt laterally, i.e. without the need to engage the end of the bolt in two or more pieces, e.g. assemblies made by two C-shaped nuts mutually interlocked, or retained by an additional member
    • 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
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
    • F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
    • F16B37/0864—Nuts engaged from the end of the bolt, e.g. axially slidable nuts with the threaded portions of the nut engaging the thread of the bolt by pressing or rotating an external retaining member such as a cap, a nut, a ring or a sleeve
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut

Definitions

  • the invention consists of a main nut which is split in two axially and has a section for spanner use and a thread. On to the threaded part, a lock nut is tightened.
  • the slot between the two halves of the main nut is stepped (sawtooth-shaped) in parts to enable easy identification of the two halves forming a pair, and also to prevent misalignism on the thread of the bolt.
  • the nut is designed primarily for use in corrosive environments, and especially for flange assembly of tubing.
  • the thread between the lock nut and the main nut can have three different designs to suit various requirements. a) ' The thread is cylindrical and may be designed according to metric or UH standards. b) The thread is cylindrical, but cut at an angle which makes the main nut lock onto the bolt if one. pulls on the lock nut after it has been tightened home against the main nut. c) The thread between the nuts is tapered but the design may be varied to give different degrees of locking for the lock nut.
  • the major advantage of the invention becomes apparent when it becomes necessary to remove the nut from severely corroded bolts, and one can unscrew the lock nut from the main nut without being hampered by rust, and then remove the two halves of the main nut without having to unscrew them from the severely corroded bolt.
  • Designs b) and c) will, in addition to the above- mentioned advantage, also provide a considerable locking effect between the main nut and the bolt.
  • Designs a) and b) provide a reinforced construction as tightening of the lock nut will give support to the main nut since the section for spanner use is clamped between the lock nut and the object to be bolted.
  • the Combi-nut consists of parts Mj ,M2 which constitute the two halves of the main nut, and M3 which is the lock nut, illustrated on figures 1,2,3 and 4.
  • the slot 3 between the two halves of the main nut is partly stepped to enable easy identification of two paired halves, and to prevent misalignism on the thread 1 of the bolt S.
  • the thread 2 between the main nut M3 and the lock nut Mi ,M2 is cylindrical with a wide profile angle ⁇ . See Fig. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joints With Pressure Members (AREA)

Abstract

Ecrou composite (M) pour un assemblage écrou/boulon dont le but principal est de faciliter le démontage d'un écrou sur un boulon fortement corrodé et qui offre l'avantage d'un blocage supplémentaire de l'assemblage écrou/boulon lors du montage. L'écrou composite est réalisé en trois parties (M1, M2, M3), l'écrou principal (M1, M2) étant divisé axialement en deux moitiés. Lors du montage, les deux moitiés sont placées sur le filetage du boulon et sont ensuite maintenues ensemble par le serrage de l'écrou de blocage (M3) sur la partie extérieure filetée de l'écrou principal. Le couple de blocage de l'écrou composite s'obtient en serrant l'écrou principal avec l'écrou de blocage contre l'objet devant être fixé. Le blocage est obtenu par un serrage supplémentaire de l'écrou de blocage. Pour défaire l'écrou composite, on dévisse l'écrou de blocage pour le séparer de l'écrou principal, ce dernier étant retiré en tapant légèrement sur chacune des moitiés, lesquelles ne doivent donc pas être dévissées du boulon.
PCT/NO1987/000048 1986-06-19 1987-06-15 Ecrou composite Ceased WO1987007928A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO862444A NO862444L (no) 1985-06-19 1986-06-19 Kombi-mutter.
NO862444 1986-06-19

Publications (1)

Publication Number Publication Date
WO1987007928A1 true WO1987007928A1 (fr) 1987-12-30

Family

ID=19889003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1987/000048 Ceased WO1987007928A1 (fr) 1986-06-19 1987-06-15 Ecrou composite

Country Status (1)

Country Link
WO (1) WO1987007928A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922957C1 (fr) * 1989-07-12 1990-12-06 Erowa Ag, Reinach, Ch
GB2239070A (en) * 1989-12-14 1991-06-19 Alex James Theodore Hayes Dismantleable nuts
GB2305482A (en) * 1995-09-22 1997-04-09 Richard Ian Johnston Split nut assembly
EP0905390A3 (fr) * 1997-09-25 1999-11-24 Ishigame Kogyo Co., Ltd. Ecrou de blocage
WO2002086336A1 (fr) * 2001-04-23 2002-10-31 Newfrey Llc Ecrou permettant de limiter un couple de serrage effectif et procede correspondant
NL1023655C2 (nl) * 2003-06-13 2004-12-14 Freddy De Jong Inrichting voor het vastzetten van een object op een as eind.
CN105443543A (zh) * 2015-11-24 2016-03-30 游奕华 锥形螺纹连接副
WO2017088788A1 (fr) * 2015-11-24 2017-06-01 游奕华 Structure de raccordement pour une vis mâle filetée et un trou fileté
WO2017088787A1 (fr) * 2015-11-24 2017-06-01 游奕华 Filetage interne conique et structure de liaison à colonne filetée
WO2017088786A1 (fr) * 2015-11-24 2017-06-01 游奕华 Corps de boulon fileté effilé et écrou fileté effilé
CN108343665A (zh) * 2018-01-16 2018-07-31 华为技术有限公司 一种防松螺母、螺纹紧固套件和螺纹紧固组件
US10047891B2 (en) * 2014-04-24 2018-08-14 Parker-Hannifin Corporation Multi-coupling with serviceable locking mechanism
CN109944854A (zh) * 2018-04-07 2019-06-28 玉环胜友工具有限公司 类哑铃状非对称双向锥形螺纹连接副
WO2019192550A1 (fr) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Structure de raccords à filetage externe effilé bidirectionnel en forme d'olive et filetage classique à grand effilement gauche et petit effilement droit
TWI702348B (zh) * 2019-08-26 2020-08-21 吳易璋 用於螺桿與螺帽間之接合裝置
US10849658B2 (en) 2016-08-02 2020-12-01 5Rmed Technology(Chengdu) Co., Ltd. Trocar seal membrane and assembly comprising concave-channels
WO2023122808A1 (fr) 2021-12-22 2023-06-29 IMS Engineering (Pty) Ltd Ensemble écrou fendu

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US609509A (en) * 1898-08-23 Vilhelm a
US1081239A (en) * 1913-01-28 1913-12-09 Charles J Lantz Nut-lock.
US1082993A (en) * 1912-09-05 1913-12-30 Richard Landgrige Beattie Pipe-coupling.
US1352256A (en) * 1920-04-22 1920-09-07 Erickson Frederic Wm Coupling for metal pipes
DE901849C (de) * 1952-04-10 1954-01-14 Ernst Heilmann Schraubenmutter
DE1144542B (de) * 1960-02-15 1963-02-28 Rudi Nowak In axialer Richtung geteilte Mutter
DE1962009A1 (de) * 1969-12-11 1971-06-16 Buechel Eugen Feststellschraube mit Mchrkantkopf,bei welcher auf der Schraube eine Zwischenmutter und auf dieser eine Feststellschraube sitzt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US609509A (en) * 1898-08-23 Vilhelm a
US1082993A (en) * 1912-09-05 1913-12-30 Richard Landgrige Beattie Pipe-coupling.
US1081239A (en) * 1913-01-28 1913-12-09 Charles J Lantz Nut-lock.
US1352256A (en) * 1920-04-22 1920-09-07 Erickson Frederic Wm Coupling for metal pipes
DE901849C (de) * 1952-04-10 1954-01-14 Ernst Heilmann Schraubenmutter
DE1144542B (de) * 1960-02-15 1963-02-28 Rudi Nowak In axialer Richtung geteilte Mutter
DE1962009A1 (de) * 1969-12-11 1971-06-16 Buechel Eugen Feststellschraube mit Mchrkantkopf,bei welcher auf der Schraube eine Zwischenmutter und auf dieser eine Feststellschraube sitzt

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922957C1 (fr) * 1989-07-12 1990-12-06 Erowa Ag, Reinach, Ch
US5074731A (en) * 1989-07-12 1991-12-24 Erowa Ag Radially insertable screw nut
GB2239070A (en) * 1989-12-14 1991-06-19 Alex James Theodore Hayes Dismantleable nuts
GB2305482A (en) * 1995-09-22 1997-04-09 Richard Ian Johnston Split nut assembly
GB2305482B (en) * 1995-09-22 2000-01-19 Richard Ian Johnston Improvements in or relating to nuts
EP0905390A3 (fr) * 1997-09-25 1999-11-24 Ishigame Kogyo Co., Ltd. Ecrou de blocage
WO2002086336A1 (fr) * 2001-04-23 2002-10-31 Newfrey Llc Ecrou permettant de limiter un couple de serrage effectif et procede correspondant
NL1023655C2 (nl) * 2003-06-13 2004-12-14 Freddy De Jong Inrichting voor het vastzetten van een object op een as eind.
EP1486684A3 (fr) * 2003-06-13 2004-12-22 de Jong, Freddy Dispositif de fixation d'un objet en bout d'arbre
US10047891B2 (en) * 2014-04-24 2018-08-14 Parker-Hannifin Corporation Multi-coupling with serviceable locking mechanism
WO2017088786A1 (fr) * 2015-11-24 2017-06-01 游奕华 Corps de boulon fileté effilé et écrou fileté effilé
US10527082B2 (en) 2015-11-24 2020-01-07 Yihua You Connection structure for tapered male screw and threaded hole
WO2017088788A1 (fr) * 2015-11-24 2017-06-01 游奕华 Structure de raccordement pour une vis mâle filetée et un trou fileté
WO2017088785A1 (fr) * 2015-11-24 2017-06-01 游奕华 Paire de liaisons filetées effilées
WO2017088787A1 (fr) * 2015-11-24 2017-06-01 游奕华 Filetage interne conique et structure de liaison à colonne filetée
CN105443543A (zh) * 2015-11-24 2016-03-30 游奕华 锥形螺纹连接副
US10527081B2 (en) 2015-11-24 2020-01-07 Yihua You Tapered internal thread and threaded column connecting structure
US10514055B2 (en) 2015-11-24 2019-12-24 Yihua You Tapered threaded bolt body and tapered threaded nut
US10508677B2 (en) 2015-11-24 2019-12-17 Yihua You Tapered thread connection pair
US10849658B2 (en) 2016-08-02 2020-12-01 5Rmed Technology(Chengdu) Co., Ltd. Trocar seal membrane and assembly comprising concave-channels
CN108343665A (zh) * 2018-01-16 2018-07-31 华为技术有限公司 一种防松螺母、螺纹紧固套件和螺纹紧固组件
WO2019192550A1 (fr) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Structure de raccords à filetage externe effilé bidirectionnel en forme d'olive et filetage classique à grand effilement gauche et petit effilement droit
WO2019192568A1 (fr) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Paire de filets de raccord ayant une forme d'haltère conique de manière asymétrique et bidirectionnelle ayant un degré conique d'extrémité gauche plus petit
WO2019192581A1 (fr) * 2018-04-07 2019-10-10 游奕华 Paire de raccords filetés coniques bidirectionnels asymétriques de type haltère
CN109944854A (zh) * 2018-04-07 2019-06-28 玉环胜友工具有限公司 类哑铃状非对称双向锥形螺纹连接副
TWI702348B (zh) * 2019-08-26 2020-08-21 吳易璋 用於螺桿與螺帽間之接合裝置
WO2023122808A1 (fr) 2021-12-22 2023-06-29 IMS Engineering (Pty) Ltd Ensemble écrou fendu

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