EP1375072A2 - Drehmoment-Werkzeug, insbesondere Schlüssel, mit Schnappmitteln zum Einstellen des Drehmoments - Google Patents

Drehmoment-Werkzeug, insbesondere Schlüssel, mit Schnappmitteln zum Einstellen des Drehmoments Download PDF

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Publication number
EP1375072A2
EP1375072A2 EP03291555A EP03291555A EP1375072A2 EP 1375072 A2 EP1375072 A2 EP 1375072A2 EP 03291555 A EP03291555 A EP 03291555A EP 03291555 A EP03291555 A EP 03291555A EP 1375072 A2 EP1375072 A2 EP 1375072A2
Authority
EP
European Patent Office
Prior art keywords
handle
torque
axial
toothed
ring
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
EP03291555A
Other languages
English (en)
French (fr)
Other versions
EP1375072A3 (de
EP1375072B1 (de
Inventor
Didier Dellerie
Ludovic Regnier
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.)
Facom SA
Original Assignee
Facom SA
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 Facom SA filed Critical Facom SA
Publication of EP1375072A2 publication Critical patent/EP1375072A2/de
Publication of EP1375072A3 publication Critical patent/EP1375072A3/de
Application granted granted Critical
Publication of EP1375072B1 publication Critical patent/EP1375072B1/de
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
    • B25B23/1427—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

Definitions

  • the present invention relates to a tool, in particular a torque wrench with one element drive, an outer hollow body of elongated shape in which the drive element is mounted with possibility of pivoting, a means of axial support on the drive element, an axial spring biasing said support means towards the drive element and the compression determines a tool tripping torque, and a mounted trigger torque adjustment handle rotating on the body to activate a compression means spring.
  • Torque tools of this type can including being keys, but still screwdrivers.
  • Such tools are not suitable for large precision of the setting of the tripping torque, the position angle of the adjustment handle being capable of vary during the operation of the tool.
  • the precision adjustment is reduced because the operator has only one visual sensation of adjustment.
  • a first object of the invention is to remedy these disadvantages, and to propose a dynamometric tool in which the setting of the tripping torque can be produced with great precision, with good sensations for the operator, not only visual but also tactile and auditory.
  • the tool conforms to claim 1, or according to a second embodiment, conforms to the claim 11.
  • the tool according to the first form of realization of the invention conforms to one of claims 2 to 4.
  • the second sleeve is mounted on the handle so as to follow the general movement of the handle relative to the body of the key, this second sleeve being in further movable in axial translation relative to the handle slightly longer than the height teeth, so as to selectively engage each other the teeth of the sleeves or release them from each other.
  • the axial displacement of the second sleeve relative to the adjustment handle is obtained by actuation in translation of an outer locking ring by compared to the handle.
  • the mutual engagement of the teeth has the effect of secure the handle with the key body, locking thus setting the tripping torque, while in the open position of the teeth, the torque setting trigger can be changed by the user.
  • Such a locking device has the major drawback of the complexity due to the implementation work of at least three pieces, namely the two sleeves and the locking ring, all movable relative to the body of the key, which increases the complexity of design, parts manufacturing and assembly.
  • Such a locking device increases by significantly manufacturing costs torque wrenches provided with them.
  • Another object of the invention is to remedy these disadvantages, and to provide a dynamometric tool equipped a torque adjustment locking device trigger, the complexity and cost of manufacturing are reduced drastically, for efficiency and identical or even improved precision.
  • a dynamometric tool following the first embodiment of the invention conforms to claim 5.
  • the tool according to the first form of realization is in accordance with one of claims 6 to 10.
  • the tool according to the second form of realization is in accordance with one of claims 12 to 18.
  • Key 1 which has been represented essentially comprises a tube 3 of shape general cylindrical, defining an external hollow body, a head or drive element 5 towards the front of the key, a handle 7 for gripping the tool and adjusting the tripping torque, located towards the rear of the key.
  • the key 1 further comprises, in an intermediate region, a fixed ring 9, integral with tube 3, as well as a fixed guard 11, integral with the ring 9 and fitted on a section front of handle 7.
  • the key 1 is further provided with a support for graduations 13, in the form of a plated and fixed strip on tube 3, and a slider 15 ( Figures 2 and 3) which can move axially on the graduated blade 13 so as to indicate the value of the tripping torque.
  • the tube 3 and the head 5 are preferably parts metal.
  • the head 5 is a part that includes a front block 21 projecting from the front of the tube 3, an intermediate zone articulation 23, and a rear tail 25 fitted into the tube 3 with clearance and mounted with possibility of pivoting on tube 3 around an axis Z-Z materialized by a pin 27.
  • the X-Z section plane is assumed vertical and the X-X axis is assumed to be horizontal, for the convenience of description.
  • Block 21 has, from its end before, an actuating device 29.
  • the latter is typically a reversible ratchet head, provided with a training square on which a screwing sleeve.
  • Trunnion 27 crosses diametrically the area 23 and the tube 3, being integral with this latest.
  • the orientation of the key shown in Figure 2 corresponds to the actuation of a screw or nut (not shown) whose axis is vertical.
  • the handle On the rear part of the tube 3 is mounted coaxially the handle 7, rotating around the axis horizontal X-X.
  • the handle is hollow inside so as to be fitted onto the tube 3. It is integral with a internal threaded rod 31 coaxial, the latter being secured to the handle 7 by a pin 33 passing through a rear end hole of the threaded rod 31.
  • the rod threaded 31 has a threaded front portion 31A, a intermediate portion 31B forming a bearing, and a portion rear cross section drive 31C polygonal (hexagonal or square for example) in which the hole is made.
  • the intermediate portion 31B of section transverse circular, is pivotally supported in a coaxial sleeve 35 rigidly attached to the rear end of the tube 3, the intermediate portion (or section) 31B having in addition an annular shoulder 37 for translational stop axial of the threaded rod, bearing on the sleeve 35.
  • a sleeve mobile 39 of complementary interior shape On the rear section 31C is fitted a sleeve mobile 39 of complementary interior shape, this sleeve mobile 39 thus being made integral in rotation with the rod threaded 31 and capable of sliding on the latter at inside the axial internal recess of the handle 7.
  • the fixed sleeve 35 and the movable sleeve 39 are provided with complementary toothed crowns 41, 43 respective, the teeth of the crowns 41, 43 being complementary, and turned opposite each other.
  • the teeth of crowns 41, 43 extend so peripheral and are oriented axially ( Figure 4).
  • a washer 44 mounted freely in axial translation on the drive section 31C is interposed between the movable crown 43 and a rear transverse wall 46 of the internal recess of the handle 7.
  • An axial spring 45 of low stiffness mounted coaxially on section 31C, takes support by a first end on the movable crown 43, and by its second end on the washer 44, so that axially bias the movable crown 43 in a position, in which the gear rings 41 and 43 are mutually committed.
  • the teeth of the toothed crowns 41, 43 are designed so that the clearance of the crowns from from an engaged position, is carried out with an effort weak, almost insensitive, the operator.
  • the teeth of the crowns 41, 43 are designed so that the axial reaction, in a region of contact between two complementary teeth, i.e. greater than the tangential reaction opposing the rotation, or same order.
  • Cursor 15 which has been shown alone on the Figure 4, is rigidly fixed to the nut 47 by making protruding through the oblong lumen 49.
  • cursor 15 is essentially consisting of a ring 51 in an arc of a circle and an axial arm 52, of which the free end edge 53 opposite on the ring 51 indicates, by superposition with the graduations of the graduated blade 13, the torque of trigger set by rotation of the handle 7.
  • the ring 51 adjusts on the periphery of the nut 47.
  • a stud 55 in radial projection from the inner face of the ring 51 fits into the nut 47.
  • the opposite lateral faces 59 of the pad 55 cooperate with the lateral edges of the light oblong 49, so that the rotation of the cursor 15, and by consequently that of the nut 47, is blocked during the rotation of the threaded rod 31.
  • shoulder 37 defines a rear axial stop for the nut 47.
  • the front face of the nut 47 bears on the end rear of a compression spring 61 having a high stiffness, this spring being fitted coaxially on the threaded section 31A of the rod 31, inside the tube 3.
  • the spring 61 is secured at its front end, a ball plate 63, the ball itself being in abutment on the rear face of a pusher 65.
  • the pusher 65 is of generally cylindrical shape and can slide axially while being guided in the tube 3, under the effect of spring stress 61.
  • the rear face of the tail 25 and the front face of the pusher 65 are vertical faces opposite one of the other, each of which has a recess.
  • a cubic die 67 applies, at rest, on the funds of these recesses.
  • the assembly formed by the pusher 65 and the die 67 defines an axial support means on the drive head 25.
  • the axial position of the nut 47 determines the compression of the spring 61, and thus the force axial support of the pusher 65 on the tail 25, by through the die 67.
  • the die 67 tilts and pushes back the pusher.
  • a lever 71 is pivotally mounted on the end rear of drive section 31C of threaded rod 31, around a transverse axis materialized by the pin 33.
  • the lever 71 has an actuating part 73 which, in the position of the lever shown in Figures 1 to 3, projects axially from the rear of the handle 7. It further comprises a block 75 forming a cam, facing the washer 44 and bearing thereon by its surface of cam.
  • the lever 71 forms, with the sleeves 35, 39 and the washer 44, a releasable device for locking the setting the tripping torque, as it will be now explained.
  • the washer 44 is axially separated from movable sleeve 39 a distance D greater than the height of the teeth of the crowns 41, 43, so that the movable sleeve 39 can undergo variations in axial position on the section 31C drive, under the effect of the rotation of the handle 7. So the handle can be freely actuated in rotation by the user, so as to adjust the compression of the spring 61 and the value of the torque of trigger.
  • lever 71 When the user wishes to lock the setting the tripping torque to use the tool without fear of disruption, he operates lever 71 while pressing the operating part 73 downwards, so as to subject lever 71 to a quarter turn.
  • the lever is located at the end of this movement in the position shown in Figures 6 and 7.
  • the washer 44 Under the effect of the rotation of the cam 75, the washer 44 is moved axially towards the sleeve 39, until it bears on the rear surface of the latter.
  • the cam 75 is provided so that the washer 44, in the locked position of the lever 71, is separated from the movable sleeve 39 by a distance d less than the height of the teeth of the crowns 41, 43 (the "height"s' means the active height of the teeth, i.e. the height of the teeth).
  • lever 71 As seen in Figures 6 and 7, the part of operation 73 of lever 71 is substantially complementary rear end shapes of the handle 7, so that in the locked position, the lever 71 is almost retracted into the handle 7. This arrangement allows a operator using the tool without feeling discomfort in the grip the handle when the lever is locked. AT conversely, when the lever 71 is unlocked, it makes projection at the rear of the handle 7, as seen in reference to Figures 1 to 3, which indicates to the operator, visually and tactile, that the torque setting trigger is not locked.
  • the shape of the operating part 73 of the lever 71 is provided so as to define, when the lever is locked, a notch 77 with the handle 7, this notch allowing the operator can easily grasp the lever to unlock.
  • the key 101 shown in Figure 8 comprises a body 103, a handle 107 for gripping and setting the tripping torque, and an integral assembly consisting of a ring 109 and a sheath 110, this set sleeve ring being movable relative to the body 103.
  • the handle 107 is internally integral with the sheath 110, by means of which it is fitted onto the body 103, at the rear end of the latter.
  • a pin 127 embodying the pivot axis Z-Z of a drive head (not shown) on the body 103.
  • the key 101 comprises a threaded rod 131 arranged coaxially inside the body 103 and integral with the handle 107, which is mounted, integrally with the sheath 110, so that turn on body 103.
  • Inside body 103 is also arranged coaxially a nut 132, this nut being secured to the body 103.
  • the threaded rod 131 cooperates with the nut 132 and moves axially relative to the body 103.
  • the axial displacement of the threaded rod 131 acts on compression of an axial spring (not shown), and thus on the release torque of the key, thanks to mechanical elements similar to those of the first form of realization, and which will therefore not be detailed again.
  • the key has a coaxial crown toothed 141 axially movable on the body 103.
  • the crown toothed 141 has a radial peripheral toothing with inclined sides, teeth facing outwards and distributed regularly over the entire periphery.
  • the crown 141 is at least integral in rotation with the body 103 thanks to a radial stop plate 141A, projecting radial inward, and engaged in an axial groove corresponding 103A formed in the body 103 at the periphery exterior. Toothed ring 141 is axially locked relative to the ring-sleeve assembly, on one side by the ring 109, and on the other by the sheath 110, apart from the clearances.
  • the key 101 further comprises a finger 142 provided with a toothed sector 143, and a locking ring 171 coaxial, external to the ring gear 141.
  • Toothed sector 143 has radial toothing facing inward, complementary to that of the toothed crown 141.
  • the toothed sector 143 extends over a angular sector of low value, in particular clearly less than 180 °, and preferably, as in the example shown, less than 45 °.
  • the teeth of sector 143 includes, in the example shown, several teeth, here at number five, but could have only one.
  • the finger 142 is further formed with a tab 174 projecting axially from the toothed sector 143, the free end of the tab 174 being provided with an internal radial return 175.
  • the tab 174 acts as an axial stop relative to the ring 109, avoiding involuntary axial displacement of the finger.
  • the radial return 175 acts as a radial support allowing the correct radial positioning of the finger 142.
  • Finger 142 is axially locked in position by in relation to the ring-sleeve assembly, between two surfaces radial stop of the ring 109 on the one hand, and of the sleeve 110 on the other hand, apart from the games.
  • the toothed sector 143 is formed externally with a peripherally extending groove 177.
  • Sector 143 is engaged in a window corresponding of said sheath 110 so that when it is in mutual engagement with the toothed crown 141, the outer surface of the toothed sector 143 extends so continues with that of the sheath 110.
  • the sheath 110 is provided at its distal end with an outer wall 110A of cylindrical section, on which a groove peripheral 178 extends over the same axial section as the groove 177.
  • grooves 177, 178 together form a continuous groove around the entire periphery of the sleeve 110.
  • a elastic biasing means 179 which can be either a split metal rod, as shown in the Figures, either an elastic O-ring, made of material elastomer, which forms a means of radial elastic return of the toothed sector 143 in position engaged with the crown toothed 141.
  • the locking ring 171 is formed internally with a first cylindrical section of wall 181 of smaller diameter, and a second section cylindrical wall 182 of larger diameter.
  • the first wall section 181 is provided for coincide with the outer wall 110A of the sleeve 110 on which is fitted, while the second section wall 182 is provided to provide sufficient clearance to the toothed sector 143, in the radial direction, so that this the latter can be released from the toothed crown 141.
  • the difference in diameter of the two sections 181, 182 is greater than the height of mutual engagement of two teeth of crown 141 and sector 143.
  • the locking ring 171 is mounted on the sheath 110, outwardly relative thereto, of so that it can slide axially relative to the sleeve 110, and consequently with respect to the body 103.
  • An elastic return member or axial spring 190 is disposed between the sheath 110 and the ring locking 171, so as to axially stress this last in the locking position of finger 142 in mutual engagement with the toothed crown 141.
  • the locking ring 171 is capable of slide axially between this locking position and a finger release or unlocking position 142 shown in Figures 12 and 13.
  • the first section of inner wall 181 of the ring locking 171 makes contact with close play with the surface outer 110A of the sheath 110, and with the surface exterior of toothed sector 143, preventing all radial displacement of the latter, so that the sector toothed 143 is held in engagement with the toothed crown 141.
  • the handle 107 is made integral in rotation of the body 103, and the adjustment of the torque of trigger is locked.
  • the second section 182 more large diameter offers the toothed sector 143 a space of radial clearance to the outside.
  • Way to stress 179 maintains the toothed sector 143 in engagement with the toothed crown 141.
  • the finger 142 is shown in an unstable position, in which the toothed sector 143 is released from the crown 141.
  • teeth of the toothed sector 143 and of the toothed crown 141 together define notches stop setting the tripping torque, and that, when the locking ring 171 is in the position of release of finger 142, rotation of handle 107 produces a "clicking" effect generated by the passage notches during rotation due to reminder of the means of solicitation 179.
  • the invention which has just been described makes it possible particular to realize, for a dynamometric tool, a torque setting lockout function triggering, by means of a device whose parts constitutive have simple relative movements, as well as low manufacturing and assembly costs.
  • the invention realizes the locking function of the setting the tripping torque from a set with cogwheels which provides a clicking adjustment.
  • This guy click adjustment provides the benefit of a large number angular stop positions, therefore high precision adjustment, as well as good feelings of use for the operator, the passage of the notches being audible and felt by the user.
  • the invention therefore makes it possible to combine the advantage of a great sensitivity of the adjustment and that of a great simplicity of implementation of the locking function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Instructional Devices (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP03291555A 2002-06-28 2003-06-24 Drehmoment-Werkzeug, insbesondere Schlüssel, mit Schnappmitteln zum Einstellen des Drehmoments Expired - Lifetime EP1375072B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0208146 2002-06-28
FR0208146A FR2841491B1 (fr) 2002-06-28 2002-06-28 Outil,notamment cle, dynamometrique comprenant des moyens cliquetants de reglage du couple

Publications (3)

Publication Number Publication Date
EP1375072A2 true EP1375072A2 (de) 2004-01-02
EP1375072A3 EP1375072A3 (de) 2004-12-22
EP1375072B1 EP1375072B1 (de) 2006-08-09

Family

ID=29717142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291555A Expired - Lifetime EP1375072B1 (de) 2002-06-28 2003-06-24 Drehmoment-Werkzeug, insbesondere Schlüssel, mit Schnappmitteln zum Einstellen des Drehmoments

Country Status (4)

Country Link
EP (1) EP1375072B1 (de)
AT (1) ATE335574T1 (de)
DE (1) DE60307377T2 (de)
FR (1) FR2841491B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN100431797C (zh) * 2005-08-18 2008-11-12 谢智庆 全方位转动的扭力工具
JP2012101318A (ja) * 2010-11-10 2012-05-31 Tohnichi Mfg Co Ltd トルク工具
EP2998071A1 (de) * 2014-09-18 2016-03-23 Matatakitoyo Tool Co., Ltd. Schraubenschlüssel mit arretierbarem Drehmomenteinstellmechanismus
CN105459004A (zh) * 2014-09-11 2016-04-06 瞬丰实业有限公司 扭矩调节装置及一种具有此扭矩调节装置的工具
CN112059982A (zh) * 2019-06-11 2020-12-11 美之岚机械工业有限公司 机械式气／电动起子扭力显示设备
CN112792776A (zh) * 2021-02-25 2021-05-14 杭州倍力耐工具有限公司 一种快速设定扭矩的预置式扭矩扳手
CN114260848A (zh) * 2022-01-07 2022-04-01 杭州昕迈科技有限公司 一种扭矩扳手
CN116981544A (zh) * 2021-06-23 2023-10-31 哈蔡特沃克霍曼泽维有限责任两合公司 扭矩工具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879711B (zh) * 2009-05-04 2012-01-25 昰星实业有限公司 扭力工具的扭力调节与锁定机构
PL2248634T3 (pl) * 2009-05-07 2013-05-31 Mikawa Co Ltd Urządzenie do ustawiania momentu obrotowego

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860871A (en) * 1930-11-06 1932-05-31 Wilfred A Pouliot Safety wrench
US2732747A (en) * 1956-01-31 Spring adjusting means therefor
US2984133A (en) * 1958-06-23 1961-05-16 Milford S Zimmerman Torque limiting screw driver
GB966947A (en) * 1962-07-04 1964-08-19 Merritt & Company Engineering Improvements in torque spanners
US3270594A (en) * 1964-07-29 1966-09-06 Torque Controls Inc Predetermined torque release wrench
GB2306363A (en) * 1995-07-10 1997-05-07 Frank Hsu Torque wrench
US5662012A (en) * 1995-11-07 1997-09-02 Consolidated Devices, Inc. Torque wrench structure
US6334377B1 (en) * 2000-11-17 2002-01-01 Izu Min Wu Adjustable torque wrench having a lock device
US20020040628A1 (en) * 2000-10-05 2002-04-11 The Stanley Works Torque wrench

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732747A (en) * 1956-01-31 Spring adjusting means therefor
US1860871A (en) * 1930-11-06 1932-05-31 Wilfred A Pouliot Safety wrench
US2984133A (en) * 1958-06-23 1961-05-16 Milford S Zimmerman Torque limiting screw driver
GB966947A (en) * 1962-07-04 1964-08-19 Merritt & Company Engineering Improvements in torque spanners
US3270594A (en) * 1964-07-29 1966-09-06 Torque Controls Inc Predetermined torque release wrench
GB2306363A (en) * 1995-07-10 1997-05-07 Frank Hsu Torque wrench
US5662012A (en) * 1995-11-07 1997-09-02 Consolidated Devices, Inc. Torque wrench structure
US20020040628A1 (en) * 2000-10-05 2002-04-11 The Stanley Works Torque wrench
US6334377B1 (en) * 2000-11-17 2002-01-01 Izu Min Wu Adjustable torque wrench having a lock device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN100431797C (zh) * 2005-08-18 2008-11-12 谢智庆 全方位转动的扭力工具
JP2012101318A (ja) * 2010-11-10 2012-05-31 Tohnichi Mfg Co Ltd トルク工具
CN105459004A (zh) * 2014-09-11 2016-04-06 瞬丰实业有限公司 扭矩调节装置及一种具有此扭矩调节装置的工具
CN105459004B (zh) * 2014-09-11 2017-07-04 瞬丰实业有限公司 扭矩调节装置及一种具有此扭矩调节装置的工具
EP2998071A1 (de) * 2014-09-18 2016-03-23 Matatakitoyo Tool Co., Ltd. Schraubenschlüssel mit arretierbarem Drehmomenteinstellmechanismus
CN112059982A (zh) * 2019-06-11 2020-12-11 美之岚机械工业有限公司 机械式气／电动起子扭力显示设备
CN112792776A (zh) * 2021-02-25 2021-05-14 杭州倍力耐工具有限公司 一种快速设定扭矩的预置式扭矩扳手
CN116981544A (zh) * 2021-06-23 2023-10-31 哈蔡特沃克霍曼泽维有限责任两合公司 扭矩工具
CN116981544B (zh) * 2021-06-23 2024-02-06 哈蔡特沃克霍曼泽维有限责任两合公司 扭矩工具
CN114260848A (zh) * 2022-01-07 2022-04-01 杭州昕迈科技有限公司 一种扭矩扳手

Also Published As

Publication number Publication date
DE60307377T2 (de) 2007-08-02
EP1375072A3 (de) 2004-12-22
FR2841491B1 (fr) 2005-01-28
ATE335574T1 (de) 2006-09-15
EP1375072B1 (de) 2006-08-09
FR2841491A1 (fr) 2004-01-02
DE60307377D1 (de) 2006-09-21

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