EP1038638A1 - Cle dynamometrique - Google Patents

Cle dynamometrique Download PDF

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Publication number
EP1038638A1
EP1038638A1 EP00105397A EP00105397A EP1038638A1 EP 1038638 A1 EP1038638 A1 EP 1038638A1 EP 00105397 A EP00105397 A EP 00105397A EP 00105397 A EP00105397 A EP 00105397A EP 1038638 A1 EP1038638 A1 EP 1038638A1
Authority
EP
European Patent Office
Prior art keywords
torque
signal
workpiece
wrench
identification
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.)
Granted
Application number
EP00105397A
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German (de)
English (en)
Other versions
EP1038638B1 (fr
Inventor
Raimund Wilhelm
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 EP1038638A1 publication Critical patent/EP1038638A1/fr
Application granted granted Critical
Publication of EP1038638B1 publication Critical patent/EP1038638B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means

Definitions

  • the invention relates to a torque wrench for testing a torque in a screwing process on a workpiece and a method for Testing a torque as defined in the respective claims 1 and 11 are described.
  • the torque wrench comprises a signal output device for outputting the screw control signal and the identification signal to one of the torque wrenches spatially Separately provided signal receiving device with the control device is in signal connection and is preferably a non-contact electromagnetic Signal transmission designed.
  • the torque signal the reference torque signal and the tightening control signal electrical, magnetic or electromagnetic signals and the control device is a microprocessor computer.
  • the control device is also an exclusively mechanical one Processing and comparison of the torques and output of the signals possible, but will be advantageous for reasons of cost and functionality electrical or electronic components used.
  • the signal output device an electromagnetic transmitter.
  • This can be, for example act as a radio transmitter operating in a generally approved Frequency band (e.g. at 27MHz, 433MHz) the signals to an external receiving device sends. This has the advantage that no disturbing electrical Cables for external signal transmission are necessary.
  • the workpiece identification device a code reader, in particular a bar or bar code reader.
  • the workpiece identification device can be a pattern recognition device be the predetermined graphic pattern in one-to-one Way can assign a workpiece.
  • electronic Use transponder systems preferably those that are non-contact can be read out electromagnetically.
  • the torque wrench a buckling function, with the torque sensor on a permanent magnet attached to a torque rod or buckling rod and a magnetic switch, in particular a reed switch or an induction switch comprises and the magnetic switch for detecting an offset of the Permanent magnets when the torque rod kinks due to a Reaching a predetermined reference torque relative to the magnetic switch is trained.
  • the torque sensor a strain gauge sensor, preferably in the form of a strain gauge bridge, which is based on an initiated torque by bending responding torque rod of the torque wrench is arranged.
  • the torque rod is thus designed as a bending rod.
  • the torque rod undergoes a change in the geometry of the strain gauges, which results in a change in resistance.
  • each such change in resistance by means of the control device in a clear Way the size of the corresponding initiated torque be assigned.
  • one is a tool holder of the torque wrench opposite end the torque rod, a locking device arranged which the Torque bar unlocks when it receives an unlock signal from the controller receives.
  • the locking device comprises a ferromagnetic enclosed by a magnetic coil Locking bolt, which is in a locking recess in the torque rod can be inserted to lock them, and by applying a current the magnetic coil can be taken out of this.
  • the torque wrench comprises a control signal receiving device which is connected to the control device in Signal connection is established and to receive control signals from an external Control device is designed, preferably by non-contact electromagnetic Transmission.
  • a control signal receiving device which is connected to the control device in Signal connection is established and to receive control signals from an external Control device is designed, preferably by non-contact electromagnetic Transmission.
  • the invention comprises Proceed the following document the output of the screw connection control signal to a receiving device, preferably by a non-contact electromagnetic transmission. This makes it easy Monitoring and logging of torque testing processes by a external monitoring and control device possible, which leads to another Increases error and operational safety.
  • the method immediately after writing (b) the identification signal to a receiving device issued, preferably by a non-contact electromagnetic Transmission. This allows before the actual torque test step is started, a preliminary check is advantageously carried out to determine whether this workpiece is to be tested at all and which test parameters note.
  • the Reference torque signal depending on the generated identification signal if necessary after reconfirmation by the receiving facility, fixed. This advantageously enables the identified workpiece automatically assign the corresponding reference torque, preferably without the user having to use test and parameter lists got to.
  • the torque wrench 10 includes a housing body 12 which has an integrally formed handle 14 at its rear end. In the area of the handle 14 is a battery recess in the housing body 12 Inclusion of a battery 16 provided in the longitudinal direction of the rear end can be inserted into the housing body 12. The battery recess is closed by a battery cover 18 on a rear End face 17 of the housing body 12 is attached.
  • a torque rod bushing 20 provided in the housing body 12 through which a torque rod 22nd is partially inserted into a torque rod recess 24.
  • a tool holder head 25 On one extending in the longitudinal direction from the housing body 12 End of the torque rod 22 is a tool holder head 25 for arrangement a screw nut is provided, which is designed as a 90 ° ratchet head.
  • the torque rod 22 has in the area of the torque rod bushing 20 has a pivot pin bore that is perpendicular to the longitudinal Axis of the torque rod 22 extends parallel to the plane of the drawing. By the pivot pin bore is inserted a pivot pin 26, the ends of which in the housing body 12 are fixed and which the torque rod 22nd swiveling.
  • a spring 32 is arranged, which is the torque rod 22 acted upon by a longitudinal spring force.
  • the size of the spring preload can be adjusted by setting the trigger torque 30 can be adjusted by a spring contact surface 34 of the triggering torque setting 30 is moved in the longitudinal direction to the compression of the Control spring 32, which is indicated by the arrow x. To do this, the Battery cover 18 and battery 17 are removed so as to access the to get the rear side of the trigger torque setting.
  • the amount of spring preload determines the reference torque of the torque wrench 10, i.e. the torque at which the key is triggered by a "kink".
  • the Triggering or kinking occurs precisely when one is caused by the reference torque predetermined buckling force in the key 10 by an in a testing screw connection initiated torque is reached.
  • the for Longitudinal axis of the torque rod 22 and normal to the plane of the drawing Buckling force acts on the rear end face 28 of the torque rod 22. Forces that are less than this predetermined buckling force, the spring 32 compensate. However, if the amount of the buckling force is reached, a jerky pivoting of the torque rod 22 in the torque rod recess 24 until an edge of the rear face 28 is the inner surface touches the torque rod recess 24. Typically is the offset of the rear face 28 about 3-4mm. This triggering the Torque wrench 10 is audible and noticeable kinking noise accompanied.
  • a workpiece identification device serving barcode reader 36 one as a signal output device serving radio transmitter 38 and serving as a control device Microprocessor computer 40 arranged side by side, one below the other and with the battery 16 are electrically connected.
  • the barcode reader 36 is oriented such that his preferred reading direction parallel to the longitudinal axis of the Torque rod 22 and the housing body 12 extends and forward in Direction of the tool holder head 25 is directed.
  • the detected solid angle of the barcode reader 36 is shown schematically by the beam.
  • a magnetic switch serving reed switch 42 arranged on the outside of the housing body 12 .
  • a Hard magnet 44 attached on the torque rod 22 so that it is opposite the reed switch facing, i.e. lies on a line from the longitudinal axis of the torque rod runs to the reed switch 42.
  • the reed switch 42 is connected to the Microprocessor computer electrically connected.
  • the worker or user reads one using the barcode reader 36 Barcode of a workpiece (not shown).
  • the barcode can, for example include the serial or part number of the workpiece.
  • the so won Identification signal of the workpiece to be tested is subsequently called electronic signal passed to the microprocessor computer 40 to be there possibly to be processed.
  • the possibly further processed identification signal then becomes the Radio transmitter 38 transmit electrically, which then this to a not shown Signal receiving device provided separately from the torque wrench sends as an electromagnetic signal without contact.
  • the signal receiving device is in signal connection with an external control device (not shown) that the Identification signal evaluates and stores. Is the sent identification signal with a predetermined one stored in the external control device Signal, is the torque wrench used by the user 10 suitable for predetermined screw connections of the identified To check the workpiece. In this case the torque test is released, the user through an acoustic and / or optical signal is shown.
  • the display can be done by a display device (not shown) take place, which is connected to the external control device.
  • the acoustic and / or optical release signal can also be given by a provided device (not shown) (for example an LED and an acoustic buzzer) in the torque wrench.
  • the radio transmitter 38 must also have a radio receiver (control signal receiving device, not shown) to include a bidirectional non-contact Data transmission between the torque wrench 10 and the external Allow signal receiving device.
  • the external control device sends a corresponding release signal to trigger the release Radio receiver of the torque wrench. This signal is sent to the microprocessor computer 40 forwarded, which then the (not shown) release indicator of the torque wrench.
  • the user After approval, the user begins checking the tightening torque the first predetermined screw connection of the workpiece usual use of the torque wrench 10. If the predetermined Reference torque is reached, the torque wrench "kinks", i.e. the Torque bar or buckling bar experiences a jerky swiveling as described above. This pivoting has the consequence that the hard magnet 44 is offset relative to the reed switch 42, with which this is actuated. The reed switch 42 thus functions together with the hard magnet 44 as Torque sensor and delivers a torque signal to the microprocessor computer 40 is transmitted electrically.
  • the external control device can be a corresponding Output warning or error signal and possibly in addition to rework prompt. Because the result of each tightening operation is automatic in this way is logged and checked for each workpiece to be checked, a high Failure safety achieved. Not all of the predetermined test procedures are successful completed, the workpiece is not released.
  • Figure 2 is a schematic side sectional view of a second particular preferred embodiment of the torque wrench according to the invention. Compared to the first embodiment shown in FIG. 1, they have the same or similar features have the same reference numerals and are not used in the following described again.
  • a locking body 52 attached with a locking recess 54 such that the Longitudinal axis of the torque rod 28 with the central axis of the circular cylindrical locking recess 54 coincides.
  • a circular cylindrical locking bolt 56 In the locking recess 54 is a circular cylindrical locking bolt 56, the Outer diameter approximately the inner diameter of the locking recess 54 corresponds, insertable.
  • the central axis of the locking bolt 56 also coincides the longitudinal axis of the torque rod 22 together when there is no torque is initiated.
  • the locking bolt 56 is preferably ferromagnetic.
  • a section of the locking bolt facing away from the locking body 52 56 is surrounded by a magnetic coil 58, which has an inner diameter has, which corresponds approximately to the outer diameter of the locking bolt 56.
  • the magnet coil 58 is arranged in the housing body 12 in such a way that its longitudinal axis with the longitudinal axes of the locking bolt 56 and the torque rod 22 coincides if no torque is introduced becomes.
  • a return spring 60 is between the rear face of the locking bolt 56 and a spring contact wall 62 of the magnetic coil 58 in this way arranged that they have a longitudinal restoring force on the locking bolt 56 exercises in the direction of the locking recess 54.
  • the locking body 52, locking bolt 56, solenoid 58, return spring 60 and Spring contact wall 62 together form a locking device 64, the Operation will be described later.
  • strain gauges 66 attached such that an operational bend the Torque rod 22 by a introduced into the torque wrench 50 Torque to change the electrical resistance of the strain gauges 66 leads. Secondary influences, especially temperature influences, to be able to rule out the resistance of the strain gauges 66 these are electrically connected in a bridge circuit.
  • the exit of the strain gauge bridge 66 is electrically connected to the Microprocessor computer 40 connected. There is one in the microprocessor computer 40 Calibration function stored, by means of which measured strain gauge resistances uniquely the sizes of in the torque wrench 50 initiated torques can be assigned.
  • torque wrench 10 is received. After this Transmission of the identification signal by the as a signal output device functioning radio transmitter 38 to the external signal receiving device and the The external control device sends further processing in the external control device Control signals to the torque wrench 50 when testing is released. These control signals are used by the control signal receiving device serving radio receiver 68 receive and include a Tripping torque setting signal, which is used to set the reference torque serves. The release signal to the torque wrench is also preferred transfer.
  • the received control signals are sent to the microprocessor computer 40 as electrical signals forwarded.
  • the user After the user receives the release signal has perceived, for example, by lighting up a not shown LED on the outside of the housing body 12, it sets the torque wrench 50 to the screw connection of the workpiece to be tested and starts by checking the tightening torque. This in the key initiated torque leads to a bending of the torque rod 22, which is detected by the strain gauge bridge 66. As described above, the microprocessor can unequivocally detect such a bend Assign torque.
  • the torque signal obtained in this way is combined with the reference torque signal compared that from the previously received trip torque unit signal was obtained. If the torque signal is equal to or greater than this reference torque signal, the torque rod 22 is triggered by the locking device 64 by outputting an unlocking signal, whereupon the torque wrench 50 "kinks".
  • the microprocessor computer 40 controls the energization of the solenoid 58 such that the locking bolt 56 is retracted longitudinally in the direction of the spring 60 to release from the locking recess 54. So that can pivot the torque rod 22 about the pivot pin 26 until the locking body 52 strikes against the inner wall of the housing body 12. The User hears this "kinking" of the torque wrench 50 noticeably true.
  • the torque wrench 50 becomes after the locking device is triggered 64 further rotated to further increase the tightening torque, see above this undesirable increase can be caused by the strain gauge bridge 66 in Connection with the microprocessor computer 40 can be determined. Do that measured torque the amount of a second reference torque, the microprocessor computer generates which is greater than the first reference torque an error signal.
  • the radio transmitter 38 Upon completion of the torque testing process of each predetermined one
  • the radio transmitter 38 sends a screw connection from the microprocessor computer 40 screw control signal generated to the external signal receiving device.
  • the screw connection control signal contains the measured Value of the tightening torque reached and possibly the error signal if the Torque test was not successfully completed.
  • the external control device saves the screw connection control signal and evaluates it and initiates rework accordingly or issues an enable signal from Screwing process.
  • the torque wrench is not used can, the rear end of the torque rod 22 in the housing body 12th set permanently.
  • a vibration sensor can possibly be added to the Handle 14 are integrated, which has a clearly noticeable mechanical signal generated as soon as the reference torque is reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Testing Of Balance (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
EP00105397A 1999-03-22 2000-03-21 Cle dynamometrique Expired - Lifetime EP1038638B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912837A DE19912837C2 (de) 1999-03-22 1999-03-22 Drehmomentschlüssel
DE19912837 1999-03-22

Publications (2)

Publication Number Publication Date
EP1038638A1 true EP1038638A1 (fr) 2000-09-27
EP1038638B1 EP1038638B1 (fr) 2002-08-28

Family

ID=7901929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105397A Expired - Lifetime EP1038638B1 (fr) 1999-03-22 2000-03-21 Cle dynamometrique

Country Status (4)

Country Link
EP (1) EP1038638B1 (fr)
AT (1) ATE222840T1 (fr)
DE (2) DE19912837C2 (fr)
ES (1) ES2178619T3 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030624A2 (fr) * 2000-10-11 2002-04-18 Ingersoll-Rand Company Systeme de gestion de force a commande electronique pour fixation filetee
WO2003041914A2 (fr) * 2001-11-14 2003-05-22 Snap-On Technologies, Inc. Cle dynamometrique electronique
US6668212B2 (en) 2001-06-18 2003-12-23 Ingersoll-Rand Company Method for improving torque accuracy of a discrete energy tool
EP1584415A1 (fr) * 2004-04-09 2005-10-12 Facom Outil dynamométrique à application manuelle du couple avec support de moyens électriques/électroniques et/ou d'alimentation électrique,
FR2868722A1 (fr) * 2004-04-09 2005-10-14 Facom Sa Outil, notamment cle, dynamometrique et procede de serrage au couple
FR2868723A1 (fr) * 2004-04-09 2005-10-14 Facom Sa Outil, notamment cle, dynamometrique et procede de detection de rupture d'equilibre lors d'un serrage au couple
EP1591206A2 (fr) * 2004-04-09 2005-11-02 Facom Outil, notamment clé, dynamométrique et procédé de détection de rupture d'équilibre lors d'un serrage au couple
WO2008094615A1 (fr) * 2007-01-31 2008-08-07 Caterpillar Inc. Système de serrage de fixation utilisant une technologie d'identification
WO2014188256A1 (fr) * 2013-05-22 2014-11-27 Sam Outillage Mecanisme de declenchement pour cle dynamometrique autorisant une grande cassure
FR3010341A1 (fr) * 2013-09-10 2015-03-13 Sam Outil Mecanisme de blocage/deblocage d'un galet dans un systeme de declenchement/enclenchement de type "actionneur" d'une cle dynamometrique notamment celle autorisant une grande cassure
CN111745576A (zh) * 2020-06-08 2020-10-09 芜湖协航测控技术有限公司 头部可转动力矩扳手
US11828316B2 (en) 2021-11-04 2023-11-28 David M. Mante Storage, recall, and use of tightening specifications on threaded mechanical fasteners

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* Cited by examiner, † Cited by third party
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DE10226134B4 (de) * 2002-06-12 2010-03-11 Schatz Ag Drehmomentschlüssel mit Auslösemechanismus
DE102006013159B4 (de) 2006-03-20 2018-07-19 STAHLWILLE Eduard Wille GmbH & Co. KG Drehmomentwerkzeug mit Rolle
DE102006013148A1 (de) 2006-03-20 2007-09-27 Eduard Wille Gmbh & Co. Kg Drehmomentwerkzeug mit Leistungsverstärker
DE102006013147B4 (de) * 2006-03-20 2014-02-27 Eduard Wille Gmbh & Co. Kg Drehmomentwerkzeug mit Untersetzungsmechanismus
DE202012013365U1 (de) 2012-01-06 2016-08-01 Sven Hanzel Etikett zur Kennzeichnung eines elektrischen Bauteils und/oder Leiters und Messonde zur Wartung und/oder Funktionsüberprüfung von elektrischen Schaltungsanordnungen bzw. -anlagen
ITMI20121267A1 (it) * 2012-07-20 2014-01-21 Tecnogi S R L Chiave dinamometrica digitale a stadio elettromeccanico
DE202013101035U1 (de) 2013-03-08 2013-03-18 Eduard Wille Gmbh & Co. Kg Drehmomentwerkzeug mit Auslösemechanismus
DE102018100665A1 (de) * 2018-01-12 2019-07-18 STAHLWILLE Eduard Wille GmbH & Co. KG Auslösemechanismus für ein Drehmomentwerkzeug
DE102018100664A1 (de) 2018-01-12 2019-07-18 STAHLWILLE Eduard Wille GmbH & Co. KG Drehmomentwerkzeug
DE202018105815U1 (de) 2018-10-11 2018-11-05 STAHLWILLE Eduard Wille GmbH & Co. KG Adapter für ein Antriebswerkzeug
DE102022114714A1 (de) 2022-06-10 2023-12-21 Hoffmann Engineering Services GmbH Verfahren und System zum Freischalten eines kalibrierbaren elektronischen Drehmomentwerkzeugs, Drehmomentprüfvorrichtung und Drehmomentwerkzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119928A1 (fr) * 1983-03-17 1984-09-26 Facom Appareil de serrage dynamométrique
DE3318910A1 (de) * 1983-05-25 1984-11-29 Oskar Ing.(grad.) 7073 Lorch Mohilo Verfahren und einrichtung zum programmieren eines elektronischen schraubenschluessels
DE3327964A1 (de) * 1983-08-03 1985-02-28 Oskar Ing.(grad.) 7073 Lorch Mohilo Verfahren zum identifizieren von verbindungsschrauben nach typ und/oder anziehvorschrift
EP0266478A2 (fr) * 1986-11-03 1988-05-11 Stabil Elektronik GmbH Appareil de commande et de contrôle pour un outil
DE4316331A1 (de) * 1993-05-15 1994-11-17 Tilo Heinzmann Elektroschrauber mit voreinstellbaren Drehmomenten und Drehzahlen

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Publication number Priority date Publication date Assignee Title
DE3221658A1 (de) * 1982-06-08 1983-12-08 Schatz Testronic GmbH, 5630 Remscheid Verfahren und vorrichtung zum pruefen des festziehdrehmoments von schrauben u. dgl. verbindungselementen
DE3429950C2 (de) * 1984-08-10 1986-07-24 Freiherr von Wolf Ulrich 1000 Berlin Maltzan Drehmomentschlüssel
DE29615123U1 (de) * 1996-08-30 1998-01-08 Eduard Wille Gmbh & Co, 42349 Wuppertal Elektronischer Meßschlüssel
DE19708667A1 (de) * 1997-03-04 1998-09-10 Universal Elektronik Handelsge Verfahren und Einrichtung zum Prüfen von Drehmomenten auf Schraubverbindungen, von motorischen Kraftschraubern und von mechanischen Drehmomentschlüsseln

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119928A1 (fr) * 1983-03-17 1984-09-26 Facom Appareil de serrage dynamométrique
DE3318910A1 (de) * 1983-05-25 1984-11-29 Oskar Ing.(grad.) 7073 Lorch Mohilo Verfahren und einrichtung zum programmieren eines elektronischen schraubenschluessels
DE3327964A1 (de) * 1983-08-03 1985-02-28 Oskar Ing.(grad.) 7073 Lorch Mohilo Verfahren zum identifizieren von verbindungsschrauben nach typ und/oder anziehvorschrift
EP0266478A2 (fr) * 1986-11-03 1988-05-11 Stabil Elektronik GmbH Appareil de commande et de contrôle pour un outil
DE4316331A1 (de) * 1993-05-15 1994-11-17 Tilo Heinzmann Elektroschrauber mit voreinstellbaren Drehmomenten und Drehzahlen

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030624A3 (fr) * 2000-10-11 2002-06-27 Ingersoll Rand Co Systeme de gestion de force a commande electronique pour fixation filetee
WO2002030624A2 (fr) * 2000-10-11 2002-04-18 Ingersoll-Rand Company Systeme de gestion de force a commande electronique pour fixation filetee
US6668212B2 (en) 2001-06-18 2003-12-23 Ingersoll-Rand Company Method for improving torque accuracy of a discrete energy tool
US6968759B2 (en) 2001-11-14 2005-11-29 Snap-On Incorporated Electronic torque wrench
WO2003041914A2 (fr) * 2001-11-14 2003-05-22 Snap-On Technologies, Inc. Cle dynamometrique electronique
WO2003041914A3 (fr) * 2001-11-14 2003-11-13 Snap On Tech Inc Cle dynamometrique electronique
US6981436B2 (en) 2001-11-14 2006-01-03 Snap-On Incorporated Electronic torque wrench
EP1584415A1 (fr) * 2004-04-09 2005-10-12 Facom Outil dynamométrique à application manuelle du couple avec support de moyens électriques/électroniques et/ou d'alimentation électrique,
US7313974B2 (en) 2004-04-09 2008-01-01 Facom Support for electrical/electronic structure and/or electrical power supply structure for a hand dynamometer tool, in particular for a torque wrench operating by breaking mechanical equilibrium
EP1591206A2 (fr) * 2004-04-09 2005-11-02 Facom Outil, notamment clé, dynamométrique et procédé de détection de rupture d'équilibre lors d'un serrage au couple
FR2868722A1 (fr) * 2004-04-09 2005-10-14 Facom Sa Outil, notamment cle, dynamometrique et procede de serrage au couple
FR2868721A1 (fr) * 2004-04-09 2005-10-14 Facom Sa Support de moyens electriques/electroniques et/ou d'alimentation electrique pour un outil dynamometrique a main, notamment pour une cle a rupture d'equilibre mecanique
EP1591206A3 (fr) * 2004-04-09 2007-03-28 Facom Outil, notamment clé, dynamométrique et procédé de détection de rupture d'équilibre lors d'un serrage au couple
US7284451B2 (en) 2004-04-09 2007-10-23 Facom Dynamometer tool, in particular a torque wrench, and a method of detecting a break in mechanical equilibrium during tightening to torque
FR2868723A1 (fr) * 2004-04-09 2005-10-14 Facom Sa Outil, notamment cle, dynamometrique et procede de detection de rupture d'equilibre lors d'un serrage au couple
WO2008094615A1 (fr) * 2007-01-31 2008-08-07 Caterpillar Inc. Système de serrage de fixation utilisant une technologie d'identification
WO2014188256A1 (fr) * 2013-05-22 2014-11-27 Sam Outillage Mecanisme de declenchement pour cle dynamometrique autorisant une grande cassure
FR3005884A1 (fr) * 2013-05-22 2014-11-28 Sam Outil Mecanisme de declenchement pour cle dynamometrique autorisant une grande cassure, comportant un ensemble capteur-came et pivot de porte-fourche deporte en avant du corps de la cle
FR3010341A1 (fr) * 2013-09-10 2015-03-13 Sam Outil Mecanisme de blocage/deblocage d'un galet dans un systeme de declenchement/enclenchement de type "actionneur" d'une cle dynamometrique notamment celle autorisant une grande cassure
WO2015036818A1 (fr) * 2013-09-10 2015-03-19 Sam Outillage Mecanisme de blocage/deblocage d'une cle dynamometrique
CN111745576A (zh) * 2020-06-08 2020-10-09 芜湖协航测控技术有限公司 头部可转动力矩扳手
CN111745576B (zh) * 2020-06-08 2022-02-25 芜湖协航测控技术有限公司 头部可转动力矩扳手
US11828316B2 (en) 2021-11-04 2023-11-28 David M. Mante Storage, recall, and use of tightening specifications on threaded mechanical fasteners

Also Published As

Publication number Publication date
EP1038638B1 (fr) 2002-08-28
DE19912837C2 (de) 2001-04-19
DE50000402D1 (de) 2002-10-02
ES2178619T3 (es) 2003-01-01
DE19912837A1 (de) 2000-10-26
ATE222840T1 (de) 2002-09-15

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