US20100275742A1 - Torque-setting device - Google Patents
Torque-setting device Download PDFInfo
- Publication number
- US20100275742A1 US20100275742A1 US12/434,662 US43466209A US2010275742A1 US 20100275742 A1 US20100275742 A1 US 20100275742A1 US 43466209 A US43466209 A US 43466209A US 2010275742 A1 US2010275742 A1 US 2010275742A1
- Authority
- US
- United States
- Prior art keywords
- torque
- handle
- axle
- knob
- setting device
- 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
Links
Images
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 torque-providing tool and, more particularly, to a torque-setting device for use in a torque-providing tool.
- torque-providing tools such as wrenches and screwdrivers.
- a torque-providing tool includes a handle and a driving unit connected to the handle.
- the driving unit can be engaged with a bit, and the bit can be engaged with a fastener such as axle and a nut.
- the torque-providing tool is operable to provide torque to the fastener.
- Such a torque indicating device includes a strain gauge connected to the handle or the driving unit, a display and a circuit for connecting the strain gauge to the display.
- a value of torque is converted to strain in the strain gauge.
- the circuit calculates the strain and sends a corresponding signal to the display, and the display shows the value of torque.
- Such a torque-setting device includes a strain spring connected to the strain gauge, an axle inserted in the strain spring and a nut engaged with the axle and abutted against the strain spring. Rotation of the axle relative to the handle is not allowed. When the nut is rotated relative to the axle, the extent to which the strain spring is compressed is changed, and a value of torque is set. However, the setting of the value of torque is not precise. Moreover, the nut might be rotated accidentally, thus setting an undesired value of torque.
- the present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
- the torque-setting device includes a handle, a driving unit, a strain gauge, a strain spring, a nut, an axle and a knob.
- the handle includes grooves defined in an internal side thereof.
- the driving unit is attached to an end of the handle.
- the strain gauge is connected to the driving unit.
- the strain spring is abutted against the strain gauge within the handle.
- the nut is abutted against the strain spring.
- the axle includes a thread formed near a first end and teeth formed near an opposite second end. The thread is engaged with the nut.
- the knob is movable on the axle and within the handle between a first position and a second position.
- the knob includes teeth on an internal side thereof and a tooth on an external side.
- the teeth on the internal side of the knob are engaged with the teeth of the axle so that the knob is operable to rotate the axle relative to the nut, thus moving the nut relative to the strain spring to set a value of torque.
- the tooth on the external side of the knob is inserted in one of the grooves of the handle to retain the value of torque when the knob is in the first position.
- the tooth on the external side of the knob is removed from the grooves of the handle to allow the rotation of the knob and therefore the rotation of the axle when the knob is in the second position.
- FIG. 1 is a perspective view of a tool equipped with a torque-setting device according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the torque-setting device shown in FIG. 1 .
- FIG. 3 is an enlarged, partial view of the torque-setting device shown in FIG. 2 .
- FIG. 4 is a cross-sectional view of the torque-setting device in another position than shown in FIG. 2 .
- FIG. 5 is an enlarged, partial view of the torque-setting device shown in FIG. 4 .
- FIG. 6 is another cross-sectional view of the torque-setting device shown in FIG. 2 .
- FIG. 7 is a cross-sectional view of the torque-setting device in another position than shown in FIG. 6 .
- FIG. 8 is a perspective view of a tool equipped with a torque-setting device according to the first embodiment of the present invention.
- a tool 100 is equipped with a torque-setting device according to a first embodiment of the present invention.
- the tool 100 includes a handle 10 , a driving unit 11 connected to an end of the handle 10 and a sleeve 15 provided on an opposite end of the handle 10 .
- the handle 10 and the sleeve 15 are hollow.
- a slot 12 is longitudinally defined in the handle 10 .
- the torque-setting device includes a spring 20 in contact with a strain gauge that is not shown or described in detail for clarity of the drawings and briefness of the description.
- a pushing element 33 is disposed in the handle 10 .
- the pushing element 33 is preferably a nut.
- a pin 330 includes an end movably disposed in the slot 12 and another end driven into the pushing element 33 .
- the pushing element 33 is movable but not rotational in the handle 10 .
- An axle 30 is formed with a thread 31 formed near a first end thereof, a block 34 formed next to the thread 31 , a shank 38 formed next to the block 34 and teeth 35 formed near an opposite second end thereof.
- the thread 31 is engaged with the thread of the pushing element 33 within the handle 10 .
- the block 34 and the shank 38 are located in the handle 10 while the teeth 35 are located outside the handle 10 .
- a bushing 32 is mounted on the shank 38 within the handle 10 .
- a washer 340 is provided between the bushing 32 and the enlarged block 34 .
- Two pins are driven into the bushing 32 through the handle 10 , thus attaching the bushing 32 to the handle 10 .
- An axle 37 is driven into the second end of the axle 30 through a restraining element 36 , thus securing the restraining element 36 to the axle 37 .
- the sleeve 15 includes an annular rib formed on an internal side thereof, thus dividing the interior thereof into a deep cavity for receiving the handle 10 and a shallow cavity 17 for receiving some elements to be described.
- the teeth 35 are located in the shallow cavity 17 .
- grooves 18 are defined in the wall of the shallow cavity 17 .
- a mark 16 is formed on or defined in an external side of the sleeve 15 .
- a knob 40 is made hollow, i.e., including a space 44 defined therein. Moreover, the knob 40 includes a shank 41 formed at an end, a tooth 42 formed on the shank 41 , marks 43 formed on or defined in an external side thereof and teeth 45 formed on an internal side.
- the shank 41 is rotationally inserted in the shallow cavity 17 before the restraining element 36 is secured to the axle 30 .
- the tooth 42 can be inserted in a selected one of the grooves 18 to keep knob 40 in a desired position relative to the sleeve 15 .
- the marks 43 are provided corresponding to the grooves 18 . A selected one of the marks 43 can be aligned with the mark 16 to indicate a selected value of torque.
- the teeth 45 are engaged with the teeth 35 .
- a plug 46 is fit in the lining 56 .
- the plug 46 can be replaced with a cap mounted on the knob 40 in another embodiment.
- a positioning unit 50 includes a lining 56 and a spring-biased detent assembly.
- the lining 56 is disposed in the space 44 of the knob 40 so that they cannot be rotated or moved relative to each other.
- the lining 56 and the knob 40 can be made one in another embodiment.
- the lining 56 includes an annular flange 51 formed on an internal side thereof at an end and an annular rib 52 formed on the internal side thereof near the annular flange 51 .
- the spring-biased detent assembly includes a spring 54 disposed in a recess 53 defined in the restraining element 36 and a detent 55 biased with the spring 54 .
- the detent 55 is formed like a cap for receiving a portion of the spring 54 .
- the detent 55 is in contact with the internal side of the lining 56 .
- the annular rib 52 is abutted against the spring-biased detent assembly.
- the tooth 42 is retained in one of the grooves 18 so that the knob 40 is prevented from rotation relative to the sleeve 15 .
- the axle 30 cannot be rotated relative to the pushing element 33 .
- the pushing element 33 cannot be moved relative to the strain spring 20 . Therefore, a value of torque is set and retained.
- the knob 40 is moved relative to the sleeve 15 after overcoming the force exerted on the annular rib 52 from the spring-biased detent assembly.
- the tooth 42 is located outside any of the grooves 18 so that the knob 40 can be rotated relative to the sleeve 15 .
- the axle 30 can be rotated relative to the pushing element 33 .
- the pushing element 33 can be moved relative to the strain spring 20 . Therefore, another value of torque can be set.
- the knob 40 can be returned to the position shown in FIGS. 2 , 3 and 6 to retain the new value of torque.
- FIG. 8 there is shown a tool 200 according to a second embodiment of the present invention.
- the tool 200 is like the tool 100 except including a different driving unit 11 ′ and different values of torque marked on the knob 40 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
- 1. Field of Invention
- The present invention relates to a torque-providing tool and, more particularly, to a torque-setting device for use in a torque-providing tool.
- 2. Related Prior Art
- There are torque-providing tools such as wrenches and screwdrivers. Such a torque-providing tool includes a handle and a driving unit connected to the handle. The driving unit can be engaged with a bit, and the bit can be engaged with a fastener such as axle and a nut. Thus, the torque-providing tool is operable to provide torque to the fastener.
- To provide certain values of torque to certain fasteners, there have been devised torque-indicating devices. Such a torque indicating device includes a strain gauge connected to the handle or the driving unit, a display and a circuit for connecting the strain gauge to the display. Thus, a value of torque is converted to strain in the strain gauge. The circuit calculates the strain and sends a corresponding signal to the display, and the display shows the value of torque.
- To warn a user of a fact that a value of torque has been reached, there have been devised torque-setting devices so that a click is given when a corresponding value of torque is reached. Such a torque-setting device includes a strain spring connected to the strain gauge, an axle inserted in the strain spring and a nut engaged with the axle and abutted against the strain spring. Rotation of the axle relative to the handle is not allowed. When the nut is rotated relative to the axle, the extent to which the strain spring is compressed is changed, and a value of torque is set. However, the setting of the value of torque is not precise. Moreover, the nut might be rotated accidentally, thus setting an undesired value of torque.
- The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
- It is the primary objective of the present invention to provide a precision, reliable torque-setting device.
- To achieve the foregoing objective, the torque-setting device includes a handle, a driving unit, a strain gauge, a strain spring, a nut, an axle and a knob. The handle includes grooves defined in an internal side thereof. The driving unit is attached to an end of the handle. The strain gauge is connected to the driving unit. The strain spring is abutted against the strain gauge within the handle. The nut is abutted against the strain spring. The axle includes a thread formed near a first end and teeth formed near an opposite second end. The thread is engaged with the nut. The knob is movable on the axle and within the handle between a first position and a second position. The knob includes teeth on an internal side thereof and a tooth on an external side. The teeth on the internal side of the knob are engaged with the teeth of the axle so that the knob is operable to rotate the axle relative to the nut, thus moving the nut relative to the strain spring to set a value of torque. The tooth on the external side of the knob is inserted in one of the grooves of the handle to retain the value of torque when the knob is in the first position. The tooth on the external side of the knob is removed from the grooves of the handle to allow the rotation of the knob and therefore the rotation of the axle when the knob is in the second position.
- Other objectives, advantages and features of the present invention will become apparent from the following description referring to the attached drawings.
- The present invention will be described via detailed illustration of two embodiments referring to the drawings.
-
FIG. 1 is a perspective view of a tool equipped with a torque-setting device according to the first embodiment of the present invention. -
FIG. 2 is a cross-sectional view of the torque-setting device shown inFIG. 1 . -
FIG. 3 is an enlarged, partial view of the torque-setting device shown inFIG. 2 . -
FIG. 4 is a cross-sectional view of the torque-setting device in another position than shown inFIG. 2 . -
FIG. 5 is an enlarged, partial view of the torque-setting device shown inFIG. 4 . -
FIG. 6 is another cross-sectional view of the torque-setting device shown inFIG. 2 . -
FIG. 7 is a cross-sectional view of the torque-setting device in another position than shown inFIG. 6 . -
FIG. 8 is a perspective view of a tool equipped with a torque-setting device according to the first embodiment of the present invention. - Referring to
FIG. 1 , atool 100 is equipped with a torque-setting device according to a first embodiment of the present invention. Thetool 100 includes ahandle 10, adriving unit 11 connected to an end of thehandle 10 and asleeve 15 provided on an opposite end of thehandle 10. Thehandle 10 and thesleeve 15 are hollow. Aslot 12 is longitudinally defined in thehandle 10. - Referring to
FIG. 2 , the torque-setting device includes aspring 20 in contact with a strain gauge that is not shown or described in detail for clarity of the drawings and briefness of the description. A pushingelement 33 is disposed in thehandle 10. The pushingelement 33 is preferably a nut. Apin 330 includes an end movably disposed in theslot 12 and another end driven into the pushingelement 33. Thus, the pushingelement 33 is movable but not rotational in thehandle 10. - An
axle 30 is formed with athread 31 formed near a first end thereof, ablock 34 formed next to thethread 31, ashank 38 formed next to theblock 34 andteeth 35 formed near an opposite second end thereof. Thethread 31 is engaged with the thread of the pushingelement 33 within thehandle 10. Theblock 34 and theshank 38 are located in thehandle 10 while theteeth 35 are located outside thehandle 10. Abushing 32 is mounted on theshank 38 within thehandle 10. Awasher 340 is provided between thebushing 32 and the enlargedblock 34. Two pins are driven into thebushing 32 through thehandle 10, thus attaching thebushing 32 to thehandle 10. Anaxle 37 is driven into the second end of theaxle 30 through arestraining element 36, thus securing therestraining element 36 to theaxle 37. - The
sleeve 15 includes an annular rib formed on an internal side thereof, thus dividing the interior thereof into a deep cavity for receiving thehandle 10 and ashallow cavity 17 for receiving some elements to be described. Theteeth 35 are located in theshallow cavity 17. As clearly shown inFIGS. 6 and 7 ,grooves 18 are defined in the wall of theshallow cavity 17. Amark 16 is formed on or defined in an external side of thesleeve 15. - A
knob 40 is made hollow, i.e., including aspace 44 defined therein. Moreover, theknob 40 includes ashank 41 formed at an end, atooth 42 formed on theshank 41, marks 43 formed on or defined in an external side thereof andteeth 45 formed on an internal side. Theshank 41 is rotationally inserted in theshallow cavity 17 before the restrainingelement 36 is secured to theaxle 30. Thetooth 42 can be inserted in a selected one of thegrooves 18 to keepknob 40 in a desired position relative to thesleeve 15. Themarks 43 are provided corresponding to thegrooves 18. A selected one of themarks 43 can be aligned with themark 16 to indicate a selected value of torque. Theteeth 45 are engaged with theteeth 35. - A
plug 46 is fit in thelining 56. Thus, the other elements are protected from contamination. Theplug 46 can be replaced with a cap mounted on theknob 40 in another embodiment. - Referring to
FIG. 3 , apositioning unit 50 includes alining 56 and a spring-biased detent assembly. The lining 56 is disposed in thespace 44 of theknob 40 so that they cannot be rotated or moved relative to each other. In fact, the lining 56 and theknob 40 can be made one in another embodiment. The lining 56 includes anannular flange 51 formed on an internal side thereof at an end and anannular rib 52 formed on the internal side thereof near theannular flange 51. - The spring-biased detent assembly includes a
spring 54 disposed in arecess 53 defined in the restrainingelement 36 and adetent 55 biased with thespring 54. Thedetent 55 is formed like a cap for receiving a portion of thespring 54. Thedetent 55 is in contact with the internal side of thelining 56. - Referring to
FIGS. 2 , 3 and 6, theannular rib 52 is abutted against the spring-biased detent assembly. Thetooth 42 is retained in one of thegrooves 18 so that theknob 40 is prevented from rotation relative to thesleeve 15. Hence, theaxle 30 cannot be rotated relative to the pushingelement 33. Accordingly, the pushingelement 33 cannot be moved relative to thestrain spring 20. Therefore, a value of torque is set and retained. - Referring to
FIGS. 4 , 5 and 7, theknob 40 is moved relative to thesleeve 15 after overcoming the force exerted on theannular rib 52 from the spring-biased detent assembly. Thetooth 42 is located outside any of thegrooves 18 so that theknob 40 can be rotated relative to thesleeve 15. Hence, theaxle 30 can be rotated relative to the pushingelement 33. Accordingly, the pushingelement 33 can be moved relative to thestrain spring 20. Therefore, another value of torque can be set. Theknob 40 can be returned to the position shown inFIGS. 2 , 3 and 6 to retain the new value of torque. - Referring to
FIG. 8 , there is shown atool 200 according to a second embodiment of the present invention. Thetool 200 is like thetool 100 except including adifferent driving unit 11′ and different values of torque marked on theknob 40. - The present invention has been described via the detailed illustration of the embodiments. Those skilled in the art can derive variations from the embodiments without departing from the scope of the present invention. Therefore, the embodiments shall not limit the scope of the present invention defined in the claims.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/434,662 US7836781B1 (en) | 2009-05-03 | 2009-05-03 | Torque-setting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/434,662 US7836781B1 (en) | 2009-05-03 | 2009-05-03 | Torque-setting device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100275742A1 true US20100275742A1 (en) | 2010-11-04 |
US7836781B1 US7836781B1 (en) | 2010-11-23 |
Family
ID=43029404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/434,662 Active US7836781B1 (en) | 2009-05-03 | 2009-05-03 | Torque-setting device |
Country Status (1)
Country | Link |
---|---|
US (1) | US7836781B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110023576A1 (en) * | 2009-07-07 | 2011-02-03 | Mountz Bradley G | Multi-scale mechanism |
CN102095545A (en) * | 2010-12-08 | 2011-06-15 | 浙江华电器材检测研究所 | Anti-twisting washer clamp and special washer seat thereof |
CN103934788A (en) * | 2013-01-21 | 2014-07-23 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Adjustment of a torque wrench |
EP2998071A1 (en) * | 2014-09-18 | 2016-03-23 | Matatakitoyo Tool Co., Ltd. | Wrench with a lockable torque-setting mechanism |
JP2016059964A (en) * | 2014-09-12 | 2016-04-25 | マタタキトヨ トゥール カンパニー、リミテッド | Torque adjustment device, and tool comprising torque adjustment device |
USD915164S1 (en) * | 2019-07-03 | 2021-04-06 | SW-Stahl GmbH | Tool handle for a torque wrench |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8245606B2 (en) * | 2009-11-16 | 2012-08-21 | William Tools Co., Ltd. | Adjustable torque wrench having lock device |
US8479620B2 (en) * | 2010-07-03 | 2013-07-09 | Mikawa Co., Ltd. | Torque-setting device |
DE102010037867B4 (en) * | 2010-09-29 | 2014-12-11 | Mikawa Co., Ltd. | torque setting |
US9216497B2 (en) * | 2013-08-14 | 2015-12-22 | Yu-Lan Lai Li | Positioning torque mechanism for torque wrench |
DE202017101615U1 (en) * | 2017-03-20 | 2017-04-19 | William Tools Co., Ltd. | torque wrench |
TWI660819B (en) * | 2018-07-27 | 2019-06-01 | 特典工具股份有限公司 | Torque wrench |
US11958172B2 (en) | 2021-05-10 | 2024-04-16 | Matatakitoyo Tool Co., Ltd. | Torque tool using colors for identification |
TWI765701B (en) * | 2021-05-10 | 2022-05-21 | 瞬豐實業股份有限公司 | Torque tool with color recognition function (2) |
TWI765700B (en) * | 2021-05-10 | 2022-05-21 | 瞬豐實業股份有限公司 | Torque tool with color recognition function (1) |
TWI765702B (en) * | 2021-05-10 | 2022-05-21 | 瞬豐實業股份有限公司 | Torque tool with color recognition function (3) |
EP4088867A1 (en) | 2021-05-10 | 2022-11-16 | Matatakitoyo Tool Co., Ltd. | Torque tool using colors for identification |
TWI765703B (en) * | 2021-05-10 | 2022-05-21 | 瞬豐實業股份有限公司 | Body member with color-identifiable torque |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2343380A (en) * | 1941-10-30 | 1944-03-07 | Snap On Tools Corp | Torque ratchet wrench |
US2374217A (en) * | 1942-09-10 | 1945-04-24 | Snap On Tools Corp | Ratchet measuring wrench |
US2682796A (en) * | 1949-09-23 | 1954-07-06 | Snap On Tools Corp | Predetermined torque release and torque indicating wrench |
US6334377B1 (en) * | 2000-11-17 | 2002-01-01 | Izu Min Wu | Adjustable torque wrench having a lock device |
-
2009
- 2009-05-03 US US12/434,662 patent/US7836781B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2343380A (en) * | 1941-10-30 | 1944-03-07 | Snap On Tools Corp | Torque ratchet wrench |
US2374217A (en) * | 1942-09-10 | 1945-04-24 | Snap On Tools Corp | Ratchet measuring wrench |
US2682796A (en) * | 1949-09-23 | 1954-07-06 | Snap On Tools Corp | Predetermined torque release and torque indicating wrench |
US6334377B1 (en) * | 2000-11-17 | 2002-01-01 | Izu Min Wu | Adjustable torque wrench having a lock device |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110023576A1 (en) * | 2009-07-07 | 2011-02-03 | Mountz Bradley G | Multi-scale mechanism |
US8495935B2 (en) * | 2009-07-07 | 2013-07-30 | Mountz, Inc. | Multi-scale mechanism |
US20140007699A1 (en) * | 2009-07-07 | 2014-01-09 | Mountz, Inc. | Multi-scale mechanism |
US8763500B2 (en) * | 2009-07-07 | 2014-07-01 | Mountz, Inc. | Multi-scale mechanism |
CN102095545A (en) * | 2010-12-08 | 2011-06-15 | 浙江华电器材检测研究所 | Anti-twisting washer clamp and special washer seat thereof |
CN103934788A (en) * | 2013-01-21 | 2014-07-23 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Adjustment of a torque wrench |
EP2756924A3 (en) * | 2013-01-21 | 2018-04-04 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Adjustment of a torque wrench |
JP2016059964A (en) * | 2014-09-12 | 2016-04-25 | マタタキトヨ トゥール カンパニー、リミテッド | Torque adjustment device, and tool comprising torque adjustment device |
EP2998071A1 (en) * | 2014-09-18 | 2016-03-23 | Matatakitoyo Tool Co., Ltd. | Wrench with a lockable torque-setting mechanism |
USD915164S1 (en) * | 2019-07-03 | 2021-04-06 | SW-Stahl GmbH | Tool handle for a torque wrench |
Also Published As
Publication number | Publication date |
---|---|
US7836781B1 (en) | 2010-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7836781B1 (en) | Torque-setting device | |
US8176817B2 (en) | Tool coupling structure | |
US7467575B2 (en) | Replacement assembly of handle tool | |
EP3334613B1 (en) | Multi-function tpms torque tool | |
US20090008886A1 (en) | Chuck | |
US10618150B2 (en) | Torque wrench | |
US8371194B2 (en) | Wrench equipped with a precise torque-measuring device | |
EP2248634B1 (en) | Torque-setting device | |
CN109605262B (en) | Sleeve barrel | |
US8973476B2 (en) | Ratcheting torque wrench | |
US7275467B1 (en) | Tracing mechanism of torque adjustable wrenches | |
US8479620B2 (en) | Torque-setting device | |
WO2019226882A1 (en) | Torque wrench with improved handle and/or adjuster | |
TW202100309A (en) | Angle gauge and hand tool with the angle gauge capable of measuring the rotation angle of the hand tool through the position change of an angle mark | |
US20040187648A1 (en) | Annular wrench | |
US9056391B1 (en) | Wrench with a lockable torque-setting mechanism | |
US20090044668A1 (en) | Torque device for use in tools | |
US7765898B2 (en) | Rotary tool | |
US7421931B2 (en) | Socket wrench/adaptor combination | |
CN111906719A (en) | Adjustable ratchet wrench | |
EP2998071B1 (en) | Wrench with a lockable torque-setting mechanism | |
US20130213195A1 (en) | Tool | |
EP2425934B1 (en) | Wrench equipped with a precise torque-measuring device | |
US20160121463A1 (en) | Drive socket | |
EP2138276B1 (en) | Torque wrench whose torque values can be adjusted easily and quickly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MIKAWA CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, XUAN-REN;REEL/FRAME:023680/0111 Effective date: 20091115 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552) Year of fee payment: 8 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2553); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY Year of fee payment: 12 |