WO2022223068A1 - Drehmomentwerkzeug - Google Patents
Drehmomentwerkzeug Download PDFInfo
- Publication number
- WO2022223068A1 WO2022223068A1 PCT/DE2022/100196 DE2022100196W WO2022223068A1 WO 2022223068 A1 WO2022223068 A1 WO 2022223068A1 DE 2022100196 W DE2022100196 W DE 2022100196W WO 2022223068 A1 WO2022223068 A1 WO 2022223068A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locking
- switching
- handle
- torque
- ring
- Prior art date
Links
- 230000008859 change Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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 invention relates to a torque tool, in particular a torque screwdriver according to the features in the preamble of claim 1.
- Torque tools are hand-held tools used to apply torque to a workpiece, typically a bolt or nut.
- a defined tightening torque can be applied with adjustable torque tools in order to ensure the necessary clamping force or assembly preload force between the components to be connected.
- a release mechanism is usually housed in the handle.
- the release mechanism can also be provided in the lever tube of the torque tool.
- An adjustable torque screwdriver is disclosed in WO 2013/143258 A1.
- a setting device including a display for a torque to be set is provided in the handle or on the handle of a torque tool.
- the desired torque is set by compressing a compression spring by rotating the adjusting body on the handle, which is connected to an adjusting mechanism, in particular a threaded spindle, relative to a stationary part of the handle.
- the setting device is fixed by means of a lock that can be actuated via a locking body. The lock is unlocked to adjust the torque.
- the object of the invention is to improve the application of a torque tool and to further develop the locking and unlocking in a functional and user-advantageous manner.
- the solution to this problem consists in a torque tool, in particular a torque screwdriver according to the independent claims.
- the torque tool and, in this case, in particular the torque screwdriver, has a handle and an adjusting body, which can be rotated about the longitudinal axis of the handle, for setting a torque.
- the actuator body is by a lock that includes a locking body over which Handle can be unlocked and locked.
- the locking causes a desired detection or blocking of the actuator.
- the lock is locked, it is not possible to actuate the control body to set a torque.
- the adjusting body can be actuated; in particular, an adjustment mechanism or an adjustment device can be used to set a defined torque. In the torque tool according to the invention, this is done by twisting or rotating the adjusting body about the longitudinal axis of the handle.
- a switching ring is assigned to the locking body.
- the switching ring is linearly displaceable relative to the locking body.
- At least one switching pin is provided on the switching ring, which is supported on a control track in the actuating body.
- a locking disk and a spring element loading the locking disk are arranged between the switching ring and the locking body.
- the locking disk has locking bodies. These preferably protrude radially laterally opposite the locking disk.
- the bolt bodies interact with bolt receptacles in the handle. By rotating the locking body, the switching pin or pins are moved along the control path.
- the geometric design of the control track causes an axial movement of the switching ring and the locking disk relative to the handle, whereby the locking body is moved out of a locking receptacle to unlock the adjusting element or can be moved out of it and brought into engagement with a locking receptacle to lock the adjusting element will or can be brought.
- the configuration according to the invention can be implemented for torque screwdrivers as well as for torque wrenches. It is of particular advantage that the torque setting configured according to the invention and the locking of a set torque enable intuitive operation by the user.
- the torque tool In order to set the torque tool to the desired torque value, the torque tool is held by the handle and set to the desired torque value by turning the adjusting body.
- Im locked State are the handle and the actuator body coupled to prevent radial movement, ie rotation of the actuator body.
- the current locking or unlocking status can be displayed in at least one viewing window that is present on the circumference of the adjusting body. The number of viewing windows can be increased almost arbitrarily, taking into account the structural conditions.
- the switching positions and thus the respective locking or unlocking state are adjusted. It is completely irrelevant whether the rotation is clockwise or counterclockwise. Consequently, the operator can reliably lock in both directions of rotation of the locking body. This is advantageous in use for the operator, regardless of whether he is right-handed or left-handed.
- the torque tool can be locked and unlocked very easily and reliably.
- the switching pins When the locking body rotates, the switching pins travel radially along the control path in the actuating body, thereby generating an axial movement.
- the switching pins are arranged on the circumference of the switching ring.
- the number and division of the switching pins and the periodic or alternating repetition of the control path are designed in such a way that the switching positions can be changed by rotating the components relative to one another. Consequently, the switching position of unlocking and locking alternate in alternation.
- the control path and its geometry can be designed in such a way that a change in the switching position is effected over equal angular distances over the circumference of a rotation.
- a change in the switching position can take place, for example, after a rotation angle of 30°, 45°, 60° or 90°.
- a direction of rotation to the right or left can take place without a stop.
- the control paths arranged 360° around the control body enable the switching state to be changed without a stop, since the switching pins arranged on the switching ring can follow the control paths.
- the direction of rotation in this process is completely arbitrary and takes place without a stop.
- the existing surveys and Indentations help to find the corresponding switching points.
- the axial position of the locking disk which changes when the control paths are traversed, ensures that the actuator is locked accordingly.
- the locking body preferably engages through a longitudinal slot in a sleeve section of the adjusting body.
- the locking body can be formed by webs or springs.
- the locking bodies reach through the longitudinal slot in the sleeve body of the adjusting body and protrude radially from the circumference of the sleeve section. In the longitudinal slots, the locking bodies are linear, ie straight and out in the longitudinal axis of the handle.
- the locking body and the switching ring can be moved linearly relative to one another by means of guide elements.
- a guide element is formed on the locking body in the form of a guide spring on a socket of the locking body and a guide element is formed on the switching ring in the form of a guide groove on the inner circumference of the switching ring.
- control track is formed circumferentially on an inner rim of the actuating body, elevations and depressions being provided alternately.
- the control track can have inclines, inclined sections or curved sections. It is essential that the control path and the switching pins moved along the control path generate a relative axial movement during the rotation of the adjusting body, by which the locking body or locking bodies can be moved out of a locking receptacle or into a locking receptacle.
- each elevation of the control track forms a switching position in which the actuating body is unlocked, whereas each depression in the control track forms a switching position in which the actuating body is locked.
- detents or similarly designed securing contours can be provided in the individual switching positions, in which the switching pins can be positioned or are restricted by friction.
- At least one viewing window for displaying the locking state of the actuating body is provided on the circumference of a ring section of the actuating body.
- a plurality of viewing windows offset from one another on the circumference are preferably provided.
- the ring section encompasses a cover ring.
- the anti-glare ring is assigned to the locking body in a rotationally fixed manner.
- the anti-glare ring has symbols for visualizing the locked state of the actuating body, which are each visible through the at least one viewing window. Such symbols can be pictograms, for example a lock in the open state or a lock in the closed state, which convey the relevant information about the locking state.
- An advantageous embodiment of the torque tool according to the invention provides that the spring component is positioned on a holder component. This is advantageous in terms of construction as well as assembly technology.
- the holder component has a base section and latching elements, with the latching elements engaging in latching receptacles on the adjusting body.
- the locking body and the switching ring are coupled only radially by means of the guide elements, in particular via a tongue and groove guide, so that the switching ring can move axially when traversing the control path.
- the locking body and the switching ring can be moved linearly relative to one another by means of the guide elements.
- the spring-loaded locking disc is supported tangentially on the switching pin. Each axial movement of the switching ring is transmitted synchronously to the locking disc.
- On the circumference of the locking disk there are preferably two, possibly also several, locking bodies which engage through longitudinal slots in the sleeve section of the adjusting body and protrude from the respective longitudinal slot.
- the locking bodies can be integrated into the locking receptacles provided in the handle via the spring force acting on the locking disk.
- the bolt receptacles are preferably designed as short grooves oriented along the longitudinal axis of the handle. Are the latch bodies in incorporated into the bolt receptacles, a non-rotatable connection between the handle and the adjusting body is guaranteed. If the locking receptacles and the locking body are not on top of each other, they can only be integrated automatically or moved by the spring force when they are on top of each other or are congruent. The locking bodies then automatically lock into the locking receptacles due to the axial force of the spring element.
- the switching pin moves on the control track against the spring force of the spring element.
- the bolt body moves out of the bolt receptacles in the handle.
- the lock is canceled and the actuator is unlocked.
- the torque can be adjusted via the setting element.
- the locking body is moved into a switching position for locking the mechanism.
- the locking bodies engage in the locking receptacles and the torque tool or the torque adjustment is secured against unintentional adjustment of the torque tool.
- the lock engages independently or automatically. Since the locking disk is constantly subjected to an axial force by the spring element, the locking bodies can engage in the locking receptacles of their own accord.
- Figure 1 shows a torque tool according to the invention in the form of a
- Figure 2 is a longitudinal section through the view of Figure 1 along line A-A;
- FIG. 3 shows the torque screwdriver according to FIG. 1 in a view with the lock closed
- Figure 4 is a section through the view of Figure 3 along line B-B;
- FIG. 5 components of the locking mechanism and the adjusting body in a perspective exploded view
- FIG. 6 components of the locking mechanism and the adjusting body in a side view
- Figure 7 is a section through the view of Figure 6 along line C-C;
- Figure 8 is a section through the view of Figure 6 along line E-E;
- Figure 9 is a section through the view of Figure 6 along line D-D;
- Figure 10 is a perspective view of the handle of the torque
- FIG. 11 shows a perspective view of components of a further embodiment of a torque tool.
- a torque tool 1 according to the invention in the form of a torque screwdriver is described with reference to FIGS. 1 to 10 and FIG.
- the torque tool 1 has a handle 2 and a display 3 for a set torque and an output 4 .
- a setting device 5 for setting a specific torque or a defined tightening torque.
- the setting device 5 comprises an actuating mechanism, not described in detail here, with which the desired torque is set by compressing a compression spring 6 .
- the setting device 5 and its setting mechanism interacts with a setting body 7 on the handle 2 .
- the adjusting body 7 can be rotated about the longitudinal axis L relative to the handle 2 .
- the torque is adjusted by rotating the adjusting body 7 relative to the stationary part of the handle 2 .
- the adjusting body 7 is fixed by means of a lock 8 which is actuated via a locking body 9 .
- the output 4 of the torque tool 1 is arranged on the front side in the handle 2 .
- the output 4 is designed to accommodate exchangeable insertion tools.
- the output 4 is equipped with a holding system 10 intended for this purpose.
- the display 3 for a set torque has a roller counter 11 with several rollers 12 arranged one behind the other, which can be read through an opening 13 in the handle 2 .
- the adjusting body 7 can be unlocked and locked in relation to the handle 2 by a locking body 9 .
- the lock 8 of the adjusting body 7 is released. This is done by turning the locking body 9 at the rear end of the handle 14.
- the locking body 9 is actuated manually.
- the locking body 9 is provided with a handle 15 and recessed grips 16 at the rear handle end 14 .
- the locking body 9 can be rotated about the longitudinal axis L in both directions. By turning the locking body 9, a change in the switching position or the locking state of the actuating body 7 is effected from the unlocked state to the locked state and vice versa.
- FIG. 1 shows the torque tool 1 or its adjusting body 7 in the unlocked state.
- a symbol in the form of an open padlock can be seen in the viewing window 17 .
- the locked state or unlocked state of the actuating body 7 is "unlocked" in the switching position. In this locked state, the torque value can be reduced or increased by rotating the adjusting body 7 .
- the adjusting element 7 is locked again so that the setting value cannot be changed unintentionally.
- FIG. 3 shows the torque tool 1 in the locked state of the adjusting body 7. In the viewing window 17 there is a symbol in the form of a closed padlock. The user recognizes this locking status in the viewing window 17.
- a switching ring 18 is assigned to the locking body 9 , the switching ring 18 being linearly displaceable relative to the locking body 9 .
- Switching pins 19 are provided on the switching ring 18 and are supported on a control track 20 in the actuating body 7 .
- a locking disk 21 and a spring element 22 loading the locking disk 21 are arranged between the switching ring 18 and the locking body 9 .
- the spring element 22 is a compression spring.
- the spring element 22 is positioned in a holder component 23 .
- the holder component 23 has a bottom section 24 and latching elements 25 .
- the latching elements 25 are provided on spring arms 26 which protrude from the bottom section 24 in the direction of the adjusting body 7 .
- the latching elements 25 have latches.
- the latching elements 25 engage in latching receptacles 27 in the adjusting body 7 .
- the holder component 23 surrounds a socket 29 of the locking body 9 with a central guide section 28.
- the locking disc 21 has locking bodies 30 which interact with locking receptacles 31 in the handle 2 .
- the locking bodies 30 each engage through a longitudinal slot 32 in a sleeve section 33 of the adjusting body 7.
- the locking body 9 and the switching ring 18 can be moved linearly relative to one another by means of guide elements 34, 35.
- a guide element 34 on the locking body 9 is designed as a guide spring on the socket 29 of the locking body 9 .
- the guide element 35 on the switching ring 18 is designed in the form of a guide groove on the inner circumference 36 of the switching ring 18 .
- the switching pins 19 are moved along the control track 20 in the circumferential direction and an axial movement of the switching ring 18 and the locking disk 21 relative to the handle 2 in its longitudinal axis L is effected.
- the locking bodies 30 are moved out of the locking receptacles 31 to unlock the adjusting body 7 , whereas the locking elements 30 are brought into engagement with the locking receptacles 31 to lock the adjusting body 7 .
- the control track 20 is formed circumferentially on an inner rim 37 of the actuating body 7, elevations 38 and depressions 39 being provided in alternation. See in particular the illustrations in FIGS. 8 and 9.
- Each elevation 38 forms a switching position in which the actuating body 7 is unlocked.
- Each depression 39 forms a switching position in which the actuating body 7 is locked.
- the number and division of the switching pins 19 corresponds on the one hand to the number and division of the viewing windows 17 provided on the actuating body 7 and on the other hand to the periodic repetition of the control track 20 and the alternatingly repeating switching positions formed on the control track 20.
- the locking body 9 and the switching ring 18 are radially position-oriented via the guide elements 34, 35, i.e. the guide grooves and the guide springs, but can be moved linearly relative to one another axially, so that the switching ring 18 can move axially when traversing the control track 20.
- the locking disk 21 is spring-loaded by the spring element 22 and is supported tangentially on the switching pin 19 . Each axial movement of the switching ring 18 is transmitted to the locking disk 21 synchronously.
- the two locking bodies 30 are located on the circumference of the locking disk 21.
- the locking bodies 30 are designed as web sections. These reach through the longitudinal slots 32 into the sleeve section 33 of the adjusting body 7 and protrude radially from the circumference of the sleeve section 33 .
- the locking bodies 30 engage in the locking receptacles 31 present in the handle 2 via the spring force of the spring element 22 acting on the locking disk 21 .
- the bolt receptacles 31 are formed by grooves. A multiplicity of such groove-shaped latch receptacles 31 are provided on an inner rim section 40 on the inner circumference of the handle 2 .
- the locking bodies 30 are integrated into the locking receptacles 31 when these are congruently one above the other.
- the adjusting body 7 is coupled to the handle 2 and non-rotatably connected. An adjustment of the adjusting body 7 is not possible in the locked state of the locking device 8 .
- the locking body 9 is actuated and the switching position is changed from the locked state of the actuating body 7 to the unlocked state of the actuating body 7 .
- This is done by rotating the locking body 9 about the longitudinal axis L of the handle 2.
- the rotating movement moves the switching pins 19 on the control path 20 against the spring force of the spring element 22.
- the transmitted axial movement causes the locking bodies 30 to move out of the locking receptacles 31 in the handle 2, so that the adjusting body 7 can be rotated relative to the handle 2 and the torque can be adjusted.
- the control track 20 running 360° in the control body 7 enables the switching state or the locking state of the control body 7 to be changed without a stop, since the switching pins 19 arranged on the switching ring 18 can travel along the control track 20 .
- the direction of rotation in this process is completely arbitrary and takes place without a stop.
- the elevations 38 and depressions 39 define the corresponding switching points or the locking/unlocking state.
- the axial position of the locking disk 21 that changes when the control path 20 is traversed ensures that the actuating body 7 is locked or unlocked accordingly.
- the locking bodies 30 engage independently or automatically in the locking receptacles 31 . This is brought about by the locking disk 21 being permanently subjected to an axial force by the spring element 22 .
- the viewing windows 17 for displaying the locking state of the control body 7 are provided on the circumference of a ring section 41 of the control body 7 .
- a plurality of viewing windows 17 which are offset relative to one another on the circumference are formed as openings in the annular section 41 of the actuating body 7 .
- the ring section 41 can enclose an anti-glare ring, the anti-glare ring being assigned to the locking body 9 in a rotationally fixed manner.
- the bezel ring assigns symbols Visualization of the unlocking and locking state of the actuator, which are each visible through a viewing window.
- FIG. 1 An embodiment of a torque tool 1 with a cover ring 42 is shown in FIG.
- the anti-glare ring 42 is assigned to the locking body 9 in a rotationally fixed manner and is seated on a socket section 44 of the locking body 9 .
- the symbols 43 for the unlocked or locked state of the actuating body 7 can be seen through the viewing window 17 .
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280022866.5A CN117042922B (zh) | 2021-04-21 | 2022-03-10 | 扭矩工具 |
JP2023562949A JP2024511895A (ja) | 2021-04-21 | 2022-03-10 | トルクツール |
EP22714108.2A EP4326488A1 (de) | 2021-04-21 | 2022-03-10 | Drehmomentwerkzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202021102127.6U DE202021102127U1 (de) | 2021-04-21 | 2021-04-21 | Drehmomentwerkzeug |
DE202021102127.6 | 2021-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022223068A1 true WO2022223068A1 (de) | 2022-10-27 |
Family
ID=81074041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2022/100196 WO2022223068A1 (de) | 2021-04-21 | 2022-03-10 | Drehmomentwerkzeug |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP4326488A1 (de) |
JP (1) | JP2024511895A (de) |
CN (1) | CN117042922B (de) |
DE (1) | DE202021102127U1 (de) |
TW (1) | TWI824465B (de) |
WO (1) | WO2022223068A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732747A (en) * | 1956-01-31 | Spring adjusting means therefor | ||
DE69307296T2 (de) * | 1992-08-31 | 1997-08-28 | Sandvik Ab | Verriegelbare federspannvorrichtung |
DE20309969U1 (de) * | 2003-06-27 | 2003-09-04 | Lee Chang Chuan | Verstellbarer Drehmomentenschlüssel mit festgelegtem Torsionswert |
DE202011050282U1 (de) * | 2011-05-30 | 2011-07-11 | Hazet-Werk Hermann Zerver Gmbh & Co. Kg | Drehmomentwerkzeug |
WO2013143258A1 (zh) | 2012-03-26 | 2013-10-03 | 杭州巨星工具有限公司 | 可调扭力螺丝批 |
DE202017101615U1 (de) * | 2017-03-20 | 2017-04-19 | William Tools Co., Ltd. | Drehmomentschlüssel |
US20180050442A1 (en) * | 2015-03-11 | 2018-02-22 | Hazet-Werk Hermann Zerver Gmbh & Co. Kg | Torque wrench |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0393852B1 (de) | 1989-04-21 | 1994-01-12 | Mhh Engineering Co Ltd | Schraubendreher mit Drehmomentanzeige |
CN201082530Y (zh) * | 2007-08-06 | 2008-07-09 | 腾达工具工业有限公司 | 工具的定扭力装置 |
TWM438356U (en) * | 2012-05-03 | 2012-10-01 | zhi-ji Chen | Ratchet wrench auxiliary control structure |
DE102012020909B3 (de) | 2012-10-24 | 2014-01-23 | Jin-Tsai Lai | Anordnung zur Drehmomentverstellung für einen Schraubendreher |
DE102013009358B4 (de) * | 2013-06-03 | 2018-03-22 | Jin-Tsai Lai | Konstruktion zur Einstellung des Drehmoments am Schraubendreher |
CN104608099B (zh) | 2013-11-04 | 2017-04-19 | 南京德朔实业有限公司 | 一种输出扭矩的电动工具 |
TWM492808U (zh) * | 2014-08-29 | 2015-01-01 | Zhu-Cun Chen | 具鎖固裝置之扭力扳手 |
CN205703930U (zh) * | 2015-12-28 | 2016-11-23 | 南京德朔实业有限公司 | 扭力输出工具 |
CN205514875U (zh) * | 2016-01-29 | 2016-08-31 | 美敦力公司 | 螺丝刀 |
TWI581917B (zh) * | 2016-11-16 | 2017-05-11 | Yi-Fu Chen | Torque wrench positioning device |
TWM547455U (zh) * | 2017-05-08 | 2017-08-21 | Di-Jen Chen | 扭力扳手之調整鎖緊環定位結構 |
DE102018100665A1 (de) * | 2018-01-12 | 2019-07-18 | STAHLWILLE Eduard Wille GmbH & Co. KG | Auslösemechanismus für ein Drehmomentwerkzeug |
-
2021
- 2021-04-21 DE DE202021102127.6U patent/DE202021102127U1/de active Active
-
2022
- 2022-03-10 EP EP22714108.2A patent/EP4326488A1/de active Pending
- 2022-03-10 JP JP2023562949A patent/JP2024511895A/ja active Pending
- 2022-03-10 WO PCT/DE2022/100196 patent/WO2022223068A1/de active Application Filing
- 2022-03-10 CN CN202280022866.5A patent/CN117042922B/zh active Active
- 2022-04-01 TW TW111112743A patent/TWI824465B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732747A (en) * | 1956-01-31 | Spring adjusting means therefor | ||
DE69307296T2 (de) * | 1992-08-31 | 1997-08-28 | Sandvik Ab | Verriegelbare federspannvorrichtung |
DE20309969U1 (de) * | 2003-06-27 | 2003-09-04 | Lee Chang Chuan | Verstellbarer Drehmomentenschlüssel mit festgelegtem Torsionswert |
DE202011050282U1 (de) * | 2011-05-30 | 2011-07-11 | Hazet-Werk Hermann Zerver Gmbh & Co. Kg | Drehmomentwerkzeug |
WO2013143258A1 (zh) | 2012-03-26 | 2013-10-03 | 杭州巨星工具有限公司 | 可调扭力螺丝批 |
US20180050442A1 (en) * | 2015-03-11 | 2018-02-22 | Hazet-Werk Hermann Zerver Gmbh & Co. Kg | Torque wrench |
DE202017101615U1 (de) * | 2017-03-20 | 2017-04-19 | William Tools Co., Ltd. | Drehmomentschlüssel |
Also Published As
Publication number | Publication date |
---|---|
TWI824465B (zh) | 2023-12-01 |
CN117042922B (zh) | 2024-02-06 |
TW202241653A (zh) | 2022-11-01 |
CN117042922A (zh) | 2023-11-10 |
EP4326488A1 (de) | 2024-02-28 |
JP2024511895A (ja) | 2024-03-15 |
DE202021102127U1 (de) | 2022-07-22 |
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