FR2425575A1 - Dispositif permettant d'arreter le serrage de vis et de boulons lorsqu'un effort axial minimum predetermine est atteint - Google Patents

Dispositif permettant d'arreter le serrage de vis et de boulons lorsqu'un effort axial minimum predetermine est atteint

Info

Publication number
FR2425575A1
FR2425575A1 FR7911584A FR7911584A FR2425575A1 FR 2425575 A1 FR2425575 A1 FR 2425575A1 FR 7911584 A FR7911584 A FR 7911584A FR 7911584 A FR7911584 A FR 7911584A FR 2425575 A1 FR2425575 A1 FR 2425575A1
Authority
FR
France
Prior art keywords
washer
bolt
torque
nut
plastic deformation
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.)
Withdrawn
Application number
FR7911584A
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.)
CASTIGLIA ENRICO
Original Assignee
CASTIGLIA ENRICO
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 CASTIGLIA ENRICO filed Critical CASTIGLIA ENRICO
Publication of FR2425575A1 publication Critical patent/FR2425575A1/fr
Withdrawn legal-status Critical Current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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

LE DISPOSITIF COMPREND DEUX RONDELLES EN FER OU ACIER ET UN ELEMENT CYLINDRIQUE TUBULAIRE DEFORMABLE, EN MATERIAU AYANT UNE LIMITE DE DEFORMATION PLASTIQUE NETTEMENT DETECTABLE ET INFERIEURE A CELLE DU MATERIAU DES RONDELLES, LESDITES RONDELLES ET LEDIT ELEMENT TUBULAIRE ETANT DESTINES A ETRE ENFILES SUR LA TIGE DE LA VIS. ENTRE UNE RONDELLE ET L'ELEMENT DEFORMABLE EST MENAGE UN ESPACE LIBRE. LORSQUE L'EFFORT DE SERRAGE PREDETERMINE EST ATTEINT LEDIT ESPACE EST REMPLI PAR LA MATIERE DUDIT ELEMENT. CELUI-CI SUBIT UNE DEFORMATION PLASTIQUE ET LES DEUX RONDELLES ENTRENT EN CONTACT MUTUEL, CE QUI SE TRADUIT PAR UNE AUGMENTATION BRUSQUE DU COUPLE DE TORSION SIGNALANT QUE LA VALEUR LIMITE DU SERRAGE EST ATTEINTE. APPLICATION POUR LIMITER LE SERRAGE DE VIS ET BOULONS.
FR7911584A 1978-05-09 1979-05-08 Dispositif permettant d'arreter le serrage de vis et de boulons lorsqu'un effort axial minimum predetermine est atteint Withdrawn FR2425575A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23186/78A IT1094601B (it) 1978-05-09 1978-05-09 Dispositivo di arresto del serraggio di viti e bulloni al raggiungimento di uno sforzo assiale prestabilito

Publications (1)

Publication Number Publication Date
FR2425575A1 true FR2425575A1 (fr) 1979-12-07

Family

ID=11204666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911584A Withdrawn FR2425575A1 (fr) 1978-05-09 1979-05-08 Dispositif permettant d'arreter le serrage de vis et de boulons lorsqu'un effort axial minimum predetermine est atteint

Country Status (2)

Country Link
FR (1) FR2425575A1 (fr)
IT (1) IT1094601B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370483A (en) * 1993-06-24 1994-12-06 J & M Turner, Inc. Direct tension indicator washer
DE4406945A1 (de) * 1994-03-04 1995-11-09 Hymer Leichtmetallbau Klemmvorrichtung für reibschlüssige Verbindungen mit Anzeige
US5667346A (en) * 1996-02-06 1997-09-16 F. Jonathan M. Turner Direct tension indicator washer
WO2006055254A3 (fr) * 2004-11-17 2006-06-29 Boeing Co Ensemble de rondelles pli reutilisable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370483A (en) * 1993-06-24 1994-12-06 J & M Turner, Inc. Direct tension indicator washer
US5487632A (en) * 1993-06-24 1996-01-30 J & M Turner, Inc. Direct tension indicator washer
DE4406945A1 (de) * 1994-03-04 1995-11-09 Hymer Leichtmetallbau Klemmvorrichtung für reibschlüssige Verbindungen mit Anzeige
US5667346A (en) * 1996-02-06 1997-09-16 F. Jonathan M. Turner Direct tension indicator washer
WO2006055254A3 (fr) * 2004-11-17 2006-06-29 Boeing Co Ensemble de rondelles pli reutilisable

Also Published As

Publication number Publication date
IT7823186A0 (it) 1978-05-09
IT1094601B (it) 1985-08-02

Similar Documents

Publication Publication Date Title
GB1493220A (en) Screw or nut and a washer intended to be held captive thereon
ES280685U (es) Sujetador de retencion
SE7510452L (sv) Anordning for atdragning av t.ex. skruvforband
ES8104933A1 (es) Aparato para proporcionar un parametro representativo de parde torsion de un sistema de apriete
NO162702C (no) Filterenhet.
ES8505571A1 (es) Aparato de apriete dinamometrico para la aplicacion de este aparato.
ES464336A1 (es) Metodo y aparato para pretensar una union de tornillo.
WO1989005928A1 (fr) Assemblage par boulons de coussinet en metal-caoutchouc
ES258069U (es) Dispositivo de fijacion para aparatos sanitarios
EP0287381A3 (fr) Dispositif de fixation
EP0264034A3 (fr) Méthode et dispositif pour le serrage d'un assemblage par boulons
FR2425575A1 (fr) Dispositif permettant d'arreter le serrage de vis et de boulons lorsqu'un effort axial minimum predetermine est atteint
GB852411A (en) Fastener for use in sheet metal elements
ES272068U (es) Una tuerca de chapa a manera de abrazadera de una sola pieza.
GB1308454A (en) Lock nut
ES2073519T3 (es) Metodo y dispositivo para apretar elementos de fijacion roscados.
ES250491U (es) Un dispositivo para retener prisionero un miembro roscado
ES268658U (es) Un dispositivo de tuerca autobloqueable.
CA2092436A1 (fr) Dispositif de fixation d'au moins deux organes l'un sur l'autre
GB868590A (en) Improvements in or relating to adjustable clamps for pipes
FR2278505A2 (fr) Amplificateur de force
GB1006129A (en) Nuts, bolts or the like
ES260757U (es) Tuerca,en particular tuerca hexagonal,poligonal,redonda y decollarin
GB1067844A (en) Improvements in hook bolts
NL7704451A (en) Aircraft nut and bolt assembly system - detects alteration in distance between datum points on nut when tightening

Legal Events

Date Code Title Description
ST Notification of lapse