CA2325557A1 - Appareil et procede de fixation d'un indicateur de charge a un element de boulonnerie - Google Patents

Appareil et procede de fixation d'un indicateur de charge a un element de boulonnerie Download PDF

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Publication number
CA2325557A1
CA2325557A1 CA002325557A CA2325557A CA2325557A1 CA 2325557 A1 CA2325557 A1 CA 2325557A1 CA 002325557 A CA002325557 A CA 002325557A CA 2325557 A CA2325557 A CA 2325557A CA 2325557 A1 CA2325557 A1 CA 2325557A1
Authority
CA
Canada
Prior art keywords
fastener
indicating device
load indicating
housing
load
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.)
Abandoned
Application number
CA002325557A
Other languages
English (en)
Inventor
Cory Waxman
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
Application filed by Individual filed Critical Individual
Publication of CA2325557A1 publication Critical patent/CA2325557A1/fr
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention concerne un procédé et un appareil permettant de fixer un indicateur de charge à un élément de boulonnerie pour éviter que la précision de l'indicateur de charge ne soit affectée par le fléchissement et la déformation élastique non uniforme du boulon. Cet appareil est fixé sur une surface du boulon qui n'est pas susceptible de fléchir ou de se déformer de façon élastique non uniforme lorsque l'élément de boulonnerie est chargé. On peut déterminer cette surface en utilisant une analyse d'éléments finis, une expérimentation physique ou d'autres moyens tels que le calcul mathématique. En fixant l'indicateur de charge de cette façon, celui-ci n'est pas affecté par le fléchissement ou la déformation non uniforme de l'élément de boulonnerie, par la charge cyclique, ou l'expansion par le choc ou la chaleur.
CA002325557A 1998-03-26 1999-03-25 Appareil et procede de fixation d'un indicateur de charge a un element de boulonnerie Abandoned CA2325557A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7946098P 1998-03-26 1998-03-26
US60/079,460 1998-03-26
PCT/US1999/006612 WO1999049289A1 (fr) 1998-03-26 1999-03-25 Appareil et procede de fixation d'un indicateur de charge a un element de boulonnerie

Publications (1)

Publication Number Publication Date
CA2325557A1 true CA2325557A1 (fr) 1999-09-30

Family

ID=22150704

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002325557A Abandoned CA2325557A1 (fr) 1998-03-26 1999-03-25 Appareil et procede de fixation d'un indicateur de charge a un element de boulonnerie

Country Status (3)

Country Link
AU (1) AU3116299A (fr)
CA (1) CA2325557A1 (fr)
WO (1) WO1999049289A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090206705A1 (en) * 2008-02-19 2009-08-20 Nies Jacob J Fasteners with welded ultrasonic stress transducers
DE102017102360A1 (de) 2017-02-07 2018-08-09 Juko Technik Gmbh Vorrichtung zur Bestimmung einer Vorspannkraft

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292835A (en) * 1980-02-25 1981-10-06 Raymond Engineering, Inc. Calibration apparatus and method for strain measuring instruments
US4525114A (en) * 1980-10-08 1985-06-25 Rotabolt Limited Fastener device
US4429579A (en) * 1981-10-26 1984-02-07 Helm Instrument Co., Inc. Tie rod tension sensor
US5211061A (en) * 1991-07-16 1993-05-18 Goodwin Jerry J Bolt clamping force sensor and clamping force validation method
GB9207880D0 (en) * 1992-04-10 1992-05-27 Ceney Stanley Load indicating fasteners
US5668323A (en) * 1996-07-12 1997-09-16 Waxman; Cory S. Method and apparatus for indicating a load

Also Published As

Publication number Publication date
WO1999049289A1 (fr) 1999-09-30
AU3116299A (en) 1999-10-18

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Legal Events

Date Code Title Description
FZDE Discontinued