WO2002014023A1 - Cle dynamometrique - Google Patents

Cle dynamometrique Download PDF

Info

Publication number
WO2002014023A1
WO2002014023A1 PCT/AU2001/000965 AU0100965W WO0214023A1 WO 2002014023 A1 WO2002014023 A1 WO 2002014023A1 AU 0100965 W AU0100965 W AU 0100965W WO 0214023 A1 WO0214023 A1 WO 0214023A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
shank
torque wrench
spanner
torque
Prior art date
Application number
PCT/AU2001/000965
Other languages
English (en)
Inventor
Norman Ian Mathers
Original Assignee
Norman Ian Mathers
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 Norman Ian Mathers filed Critical Norman Ian Mathers
Priority to AU2001279492A priority Critical patent/AU2001279492A1/en
Publication of WO2002014023A1 publication Critical patent/WO2002014023A1/fr

Links

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
    • B25B23/1427—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 mechanical means
    • 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
    • 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
    • B25B23/15—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers having a mechanism to mark the work when the selected torque is applied to the work

Definitions

  • This invention relates to torque wrenches and is particularly concerned with a torque wrench which can usefully combine a combination of open end ring spanners, closed end ring spanners, and open end spanners.
  • the invention is also concerned with an ink injection means built into the torque wrench for marking a nut when the nut has been tightened to the required degree of torque.
  • Torque wrenches for setting tightening forces on threaded nuts, screws or bolts traditionally use a socket spanner and tube assembly. When working with ring or open ended spanners, these are attached to the socket head assembly, which makes a bulky, difficult to use, arrangement .
  • Another object of the invention is to provide a torque wrench which automatically marks a bolt, nut or screw as soon as it has been tightened to the required degree of torque.
  • a torque wrench comprising a first spanner with a first shank which extends into one end of a principal tube and which is pivotally secured therein by a first head-pin, the first shank having an end which co-acts with a first spring-loaded roller assembly within the tube, and wherein a second spanner with a second shank extends part-way into the other end of the tube, the second shank having an end which co-acts with a second spring-loaded roller assembly within the tube in an opposite direction to the first shank, said second shank being adjustable longitudinally with respect to the principal tube so as to set the tension in a spring, which tensions both the first and second spring- loaded roller assemblies, whereby the torque applied through the first spanner to a nut or the like is set to a predetermined amount.
  • a torque wrench comprising a spanner with a shank which extends into a tube and which is pivotally secured therein by a head-pin, the shank having an end with co-acts with a spring-loaded roller assembly within the tube, said wrench including a proximity switch and an ink injector which has an associated nozzle extending through the spanner, the construction and arrangement being such that when the spanner shank rocks relative to the tube during the setting of a nut, the proximity switch generates a signal whereby ink is pumped by way of the injector through the nozzle onto the nut which has been- set .
  • the proximity switch can be mounted on the top, side or interior of the torque wrench tube depending on the specific design of the torque wrench and its proposed use.
  • the ink injector arrangement is combined with the earlier of the aforementioned two aspects of the invention and, in this case the precision proximity switch is typically mounted on either the side or the top of the torque wrench.
  • the second shank of the second spanner can be adjusted longitudinally within the principal tube by fixing it by means of a pivot pin to an extendable portion which can slide relative to the tube.
  • One suitable design for the extendable portion comprises a second tube which slides over the end region of the principal tube .
  • the second tube has two diameters to limit the amount by which it can slide over the principal tube.
  • the means for fixing the relative longitudinal position of the second shank with respect to the principal tube can be effected by a locknut on the inner end of the second tube.
  • An associated adjacent torque setting sleeve can be provided to enable appropriate adjustment of the torque when the locknut is loosened or, more preferably, it can provide the means by which the locknut can be rotated to achieve the necessary torque setting.
  • the spring tensioning means is common to both the first and second roller assembly and comprises a coil spring which is axially aligned within the principal tube.
  • Spring guides which fit into the ends of the spring and which contact the respective ends of the first and second shanks, can be provided to ensure a smooth regular compression/extension of the spring to the required tolerances for setting the torque.
  • the end-regions of the shanks of the first and second open-end spanners which contact the roller assemblies, in combination with the roller assemblies, can comprises conventional torque applying arrangements.
  • roller assembly projects a sloping face to a complementary sloping face on the end of the shank and is configured and includes means such that when the predetermined torque has been reached, the sloping face on the end of the shank suddenly shifts relative to the position of the indent and collides with the inner side wall of the hollow tube, accompanied by an impact noise and an abrupt reduction in torque which informs the user of the tightening of the bolt or the like.
  • the torque wrench is also such that different torques can also be applied by extending the spanner mechanism centre from the pivot pin, allowing one torque on one end and a different setting on the other end. This allows for one spanner to have one torque setting and the other end to be identical or a completely different torque for two different spanner sizes.
  • Figure 1 is a longitudinal cross-section of a torque wrench according to one aspect of the invention
  • Figure 2 is a partially cut-away side view of a torque wrench according to another aspect of the invention with a switch mounted on top thereof,
  • Figure 3 is a partially cut-away top view of a torque wrench according to yet another aspect of the invention with a switch mounted on the side thereof
  • Figure 4 is a partially cut-away top view of a torque wrench according to still yet another aspect of the invention with a switch mounted inside thereof.
  • the torque wrench comprises a first open end spanner 10 having a first shank 11, and a second open end spanner 12 having a second shank 13, which respectively extend into opposing ends of a principal tube 14.
  • the first shank 11 is held within the principal tube 14 by means of a pivot pin 20.
  • the second shank 13 is pivoted by means of a pivot pin 21 to a second longitudinally movable tube 22 which is retained on the outer surface of the principal tube 14.
  • the second longitudinal tube 22 has two diameters to limit its movement with respect to the principal tube 14.
  • the respective ends 15, 16 of the shanks of the spanners are angled and co-act with the respective angled faces of roller assemblies 17, 18 which are, in turn, held under tension by a common coil spring 19.
  • the angled ends of shanks 15, 16 each have an associated pin 24, 25. These pins depress the respective roller assemblies 17, 18 when under load, enabling the ends of the shanks to rotate about their respective pins 20, 21.
  • the torque setting is adjustable by moving the second tube 22 over the principal tube 14 by means of an adjustable nut 26 which is threaded to the principal tube.
  • An adjacent torque setting sleeve 27 enables one to read off the required setting to which the adjustment is made.
  • Limit screws 30, 31 are located ' in the respective shanks 11, 13 to enable pre-adjustment of the relative degrees of torque indicating movement of the spanners 10, 12.
  • the torque required is proportional to the length "L” of the moment arm from the centre of the spanner 10 to the pin 20 versus the moment arm length "M” from the pin 20 to the roller pin 24 by the spring force.
  • Increasing the spring tension has the effect of increasing the torque applied to depress the mechanism providing a telltale obvious sound and spanner action indicating the correct torque is reached as preset.
  • the torque read outs are noted on the torque tables adjacent to the spanner and matched against the torque setting sleeves.
  • the torque wrench utilises an in line compact design suitable for working within confined spaces or on nuts which are not accessible to socket spanners.
  • the torque wrench comprises a spanner 40, attached shank 41, and guide tube 42 with a conventional rocking mechanism therein.
  • An external precision proximity switch 43 is mounted on the side of the tube and is electrically connected by lead 44 to a pressurized ink reservoir (not shown) .
  • An ink injector 45 is fitted to the shank 41 and is connected by way of tube 46 to the ink reservoir.
  • a nozzle 47 projects from the ink injector 45 through the spanner 40 and outlets where a nut to be set will be located.
  • FIG 3 shows a torque wrench arrangement which is similar in construction and function to that shown in Figure 2. The main difference is that the switch 43 is mounted on the side of the torque wrench.
  • FIG 4 shows a torque wrench in which the switch 50 is mounted in the interior of the torque wrench. In most other respects the function and operation is similar to that of the Figure 2 embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

Clé dynamométrique composée d'une première clé (10) comportant une première tige (11) s'étendant vers l'intérieur d'une extrémité d'un tube principal (14) et fixée pivotante dans ledit tube par une première goupille (20). Cette première tige possède une extrémité (15) coopérant avec un premier ensemble rouleau (17) chargé par ressort à l'intérieur du tube et une deuxième clé (12) pourvue d'une deuxième tige (13) s'étend partiellement vers l'intérieur de l'autre extrémité du tube (14). Cette deuxième tige présente une extrémité coopérant avec un deuxième ensemble rouleau (18) chargé par ressort à l'intérieur du tube dans un sens contraire à celui de la première tige, ladite deuxième tige pouvant être réglée dans le sens de la longueur par rapport au tube principal, de manière à régler la tension d'un ressort (19) tendant à la fois le premier et le deuxième ensemble rouleau chargé par ressort, ce qui permet de régler à un niveau prédéterminé le couple appliqué par l'intermédiaire de la première clé à un élément tel qu'un écrou.
PCT/AU2001/000965 2000-08-10 2001-08-07 Cle dynamometrique WO2002014023A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001279492A AU2001279492A1 (en) 2000-08-10 2001-08-07 Torque wrench

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ9341 2000-08-10
AUPQ9341A AUPQ934100A0 (en) 2000-08-10 2000-08-10 Torque wrench

Publications (1)

Publication Number Publication Date
WO2002014023A1 true WO2002014023A1 (fr) 2002-02-21

Family

ID=3823400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/000965 WO2002014023A1 (fr) 2000-08-10 2001-08-07 Cle dynamometrique

Country Status (3)

Country Link
AU (1) AUPQ934100A0 (fr)
TW (1) TW503162B (fr)
WO (1) WO2002014023A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034044A1 (fr) * 2005-09-23 2007-03-29 Facom Cle dynamometrique
CN100441378C (zh) * 2006-01-23 2008-12-10 谢智庆 扭力工具的头部定位结构
WO2015047062A1 (fr) 2013-09-27 2015-04-02 Uab Profarma Protéines de fusion constituées d'un facteur de stimulation des colonies granulocytaires avec d'autres partenaires de type facteur de croissance, de préférence avec un facteur de croissance de cellules souches, et leur procédé de préparation
KR20160095899A (ko) * 2015-02-04 2016-08-12 디지털국제공조 주식회사 에어컨 설치용 토크 렌치장치
FR3040904A1 (fr) * 2015-09-15 2017-03-17 Sncf Mobilites Cle de serrage et procede de serrage et de marquage
CN106541350A (zh) * 2017-01-27 2017-03-29 奉化市飞天人精密模具设计有限公司 一种设有警示功能的扭矩新型扳手
CN106584337A (zh) * 2017-01-27 2017-04-26 奉化市飞天人精密模具设计有限公司 设有警示功能的扭矩新型扳手
JP2020131423A (ja) * 2019-02-25 2020-08-31 優鋼機械股▲ふん▼有限公司 トルクレンチの音声通知手段
CN114393539A (zh) * 2021-12-16 2022-04-26 芜湖锐进医疗设备有限公司 一种预设扭力值的扭力扳手

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI780929B (zh) * 2021-09-27 2022-10-11 瞬豐實業股份有限公司 具高、低扭矩的扳手

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6080496A (en) * 1995-10-12 1997-04-17 Warren & Brown Manufacturing Pty Ltd Torque wrench
AU4534697A (en) * 1996-11-27 1998-06-04 Facom Torque wrench
JP2000263460A (ja) * 1999-03-11 2000-09-26 Tohnichi Mfg Co Ltd トルクレンチ用のマーカー機構
JP2001113472A (ja) * 1999-10-19 2001-04-24 East Japan Railway Co マーカ付きトルクレンチ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6080496A (en) * 1995-10-12 1997-04-17 Warren & Brown Manufacturing Pty Ltd Torque wrench
AU4534697A (en) * 1996-11-27 1998-06-04 Facom Torque wrench
JP2000263460A (ja) * 1999-03-11 2000-09-26 Tohnichi Mfg Co Ltd トルクレンチ用のマーカー機構
JP2001113472A (ja) * 1999-10-19 2001-04-24 East Japan Railway Co マーカ付きトルクレンチ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; Class P62, AN 2000-625166/60 *
DATABASE WPI Derwent World Patents Index; Class P62, AN 2001-378230/40 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034044A1 (fr) * 2005-09-23 2007-03-29 Facom Cle dynamometrique
FR2891176A1 (fr) * 2005-09-23 2007-03-30 Facom Sa Cle dynamometrique.
CN100441378C (zh) * 2006-01-23 2008-12-10 谢智庆 扭力工具的头部定位结构
WO2015047062A1 (fr) 2013-09-27 2015-04-02 Uab Profarma Protéines de fusion constituées d'un facteur de stimulation des colonies granulocytaires avec d'autres partenaires de type facteur de croissance, de préférence avec un facteur de croissance de cellules souches, et leur procédé de préparation
KR101713398B1 (ko) 2015-02-04 2017-03-22 디지털국제공조 주식회사 에어컨 설치용 토크 렌치장치
KR20160095899A (ko) * 2015-02-04 2016-08-12 디지털국제공조 주식회사 에어컨 설치용 토크 렌치장치
FR3040904A1 (fr) * 2015-09-15 2017-03-17 Sncf Mobilites Cle de serrage et procede de serrage et de marquage
EP3144104A1 (fr) * 2015-09-15 2017-03-22 SNCF Mobilités Cle de serrage et procede de serrage et de marquage
CN106541350A (zh) * 2017-01-27 2017-03-29 奉化市飞天人精密模具设计有限公司 一种设有警示功能的扭矩新型扳手
CN106584337A (zh) * 2017-01-27 2017-04-26 奉化市飞天人精密模具设计有限公司 设有警示功能的扭矩新型扳手
CN106584337B (zh) * 2017-01-27 2021-09-28 上海优拜机械股份有限公司 设有警示功能的扭矩新型扳手
JP2020131423A (ja) * 2019-02-25 2020-08-31 優鋼機械股▲ふん▼有限公司 トルクレンチの音声通知手段
CN114393539A (zh) * 2021-12-16 2022-04-26 芜湖锐进医疗设备有限公司 一种预设扭力值的扭力扳手
CN114393539B (zh) * 2021-12-16 2024-02-20 芜湖锐进医疗设备有限公司 一种预设扭力值的扭力扳手

Also Published As

Publication number Publication date
TW503162B (en) 2002-09-21
AUPQ934100A0 (en) 2000-08-31

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