EP1147858A3 - Torque wrenches - Google Patents
Torque wrenches Download PDFInfo
- Publication number
- EP1147858A3 EP1147858A3 EP01301942A EP01301942A EP1147858A3 EP 1147858 A3 EP1147858 A3 EP 1147858A3 EP 01301942 A EP01301942 A EP 01301942A EP 01301942 A EP01301942 A EP 01301942A EP 1147858 A3 EP1147858 A3 EP 1147858A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- wrench
- torque
- cam
- break
- follower
- 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.)
- Withdrawn
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
Abstract
A torque wrench of the type that "break" upon achieving a pre-selected maximum. The mechanism used to limit torque is adapted such that excessive wear is avoided and torque preselection remains within acceptable tolerances. This is achieved by providing a roller cam-follower to contact the surface of a cam-like surface mitigating any wear of the surface and/or the cam follower. The wrench is also adapted so that the break in applied torque, which characterises such wrenches, is readily apparent to the user of the wrench by an appreciable change in the alignment between the wrench body and the component engaging section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0005213A GB0005213D0 (en) | 2000-03-03 | 2000-03-03 | Torque wrenches |
| GB0005213 | 2000-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1147858A2 EP1147858A2 (en) | 2001-10-24 |
| EP1147858A3 true EP1147858A3 (en) | 2002-06-05 |
Family
ID=9886951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01301942A Withdrawn EP1147858A3 (en) | 2000-03-03 | 2001-03-02 | Torque wrenches |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1147858A3 (en) |
| GB (1) | GB0005213D0 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3005884B1 (en) * | 2013-05-22 | 2016-08-19 | Sam Outil | RESTRICTIVE MECHANISM FOR A HIGH CASSURE DYNAMOMETRIC KEY COMPRISING A CAM-SENSOR ASSEMBLY AND FORK-HOLDER PIVOT DEPARTURE IN FRONT OF THE BODY OF THE KEY |
| WO2019138401A1 (en) | 2018-01-14 | 2019-07-18 | MIS Implants Technologies Ltd. | Dental torque wrench |
| TWI714442B (en) * | 2020-01-20 | 2020-12-21 | 和嘉興精密股份有限公司 | Torsion structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959078A (en) * | 1959-06-17 | 1960-11-08 | Skidmore Hungerford Ind Inc | Predetermined torque release wrench |
| US3140623A (en) * | 1961-08-29 | 1964-07-14 | Pendleton Tool Ind Inc | Predetermined torque release wrench |
| US4316397A (en) * | 1980-07-03 | 1982-02-23 | Skidmore Engineering Div. Buckeye Gear Company | Torque wrench |
| US4870879A (en) * | 1988-07-05 | 1989-10-03 | James Shieh | Quick-set dial type torque wrench |
| WO1997039694A1 (en) * | 1996-04-18 | 1997-10-30 | Aesculap Ag | Surgical torque wrench |
-
2000
- 2000-03-03 GB GB0005213A patent/GB0005213D0/en not_active Ceased
-
2001
- 2001-03-02 EP EP01301942A patent/EP1147858A3/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959078A (en) * | 1959-06-17 | 1960-11-08 | Skidmore Hungerford Ind Inc | Predetermined torque release wrench |
| US3140623A (en) * | 1961-08-29 | 1964-07-14 | Pendleton Tool Ind Inc | Predetermined torque release wrench |
| US4316397A (en) * | 1980-07-03 | 1982-02-23 | Skidmore Engineering Div. Buckeye Gear Company | Torque wrench |
| US4870879A (en) * | 1988-07-05 | 1989-10-03 | James Shieh | Quick-set dial type torque wrench |
| WO1997039694A1 (en) * | 1996-04-18 | 1997-10-30 | Aesculap Ag | Surgical torque wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1147858A2 (en) | 2001-10-24 |
| GB0005213D0 (en) | 2000-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20021206 |