CA2881624C - A load-indicating device - Google Patents
A load-indicating device Download PDFInfo
- Publication number
- CA2881624C CA2881624C CA2881624A CA2881624A CA2881624C CA 2881624 C CA2881624 C CA 2881624C CA 2881624 A CA2881624 A CA 2881624A CA 2881624 A CA2881624 A CA 2881624A CA 2881624 C CA2881624 C CA 2881624C
- Authority
- CA
- Canada
- Prior art keywords
- washer
- probe
- load
- hole
- indicating 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.)
- Active
Links
- 239000000523 sample Substances 0.000 claims abstract description 79
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000000007 visual effect Effects 0.000 claims description 14
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 20
- 230000005483 Hooke's law Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
- F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Bolts, Nuts, And Washers (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1115040.6A GB201115040D0 (en) | 2011-08-31 | 2011-08-31 | Load indicating washer |
| GB1115040.6 | 2011-08-31 | ||
| PCT/GB2012/052114 WO2013030567A1 (en) | 2011-08-31 | 2012-08-29 | A load-indicating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2881624A1 CA2881624A1 (en) | 2013-03-07 |
| CA2881624C true CA2881624C (en) | 2020-01-21 |
Family
ID=44838985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2881624A Active CA2881624C (en) | 2011-08-31 | 2012-08-29 | A load-indicating device |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9612172B2 (enExample) |
| EP (1) | EP2751537B1 (enExample) |
| JP (1) | JP2014525578A (enExample) |
| KR (1) | KR102043812B1 (enExample) |
| CN (1) | CN103975228B (enExample) |
| AU (1) | AU2012300631B2 (enExample) |
| BR (1) | BR112014004419B1 (enExample) |
| CA (1) | CA2881624C (enExample) |
| GB (1) | GB201115040D0 (enExample) |
| WO (1) | WO2013030567A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201300093D0 (en) | 2013-01-04 | 2013-02-20 | Phipps Maria J | Load indicating nut/washer |
| US10238764B2 (en) | 2014-08-19 | 2019-03-26 | Vapium Inc. | Aromatherapy vaporization device |
| US9677592B2 (en) * | 2014-11-03 | 2017-06-13 | The Boeing Company | Witness enabled fasteners and related systems and methods |
| RU168232U1 (ru) * | 2016-06-24 | 2017-01-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Псковский государственный университет" | Устройство для сигнализации при ослаблении затяжки резьбового разъёмного соединения |
| CN108071649A (zh) * | 2016-11-16 | 2018-05-25 | 孙愉后 | 紧固件 |
| BE1025510B1 (nl) * | 2018-02-06 | 2019-03-21 | Zensor Nv | Sluitringeenheid en spanningdetectiesysteem voor een bevestigde koppeling |
| RU206443U1 (ru) * | 2021-05-04 | 2021-09-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет науки и технологий имени академика М.Ф. Решетнева" (СибГУ им. М.Ф. Решетнева) | Стенд для исследования затянутого болтового соединения |
| US12203499B1 (en) * | 2023-12-12 | 2025-01-21 | The Boeing Company | Fastening system, a fastener assembly, and a method of preloading the fastener assembly |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306154A (en) * | 1965-10-23 | 1967-02-28 | Mcculloch Corp | Compressive load limit indicators |
| US4483648A (en) * | 1979-07-09 | 1984-11-20 | Trungold Emanuel H | Bolt tension indicating means |
| JPS6053828A (ja) * | 1983-09-05 | 1985-03-27 | Idemitsu Petrochem Co Ltd | ボルト軸の締付け状態の測定方法 |
| US4630490A (en) * | 1985-07-12 | 1986-12-23 | Carron & Company | Compression strain gauge transducer assembly |
| GB2184509B (en) * | 1985-11-13 | 1988-12-14 | Exotech Ltd | Fastener, power tool for use with same and method tightening the fastener |
| GB8726339D0 (en) * | 1987-11-10 | 1987-12-16 | Walton B | Fastener |
| US5291789A (en) * | 1987-11-10 | 1994-03-08 | Rotabolt Limited | Load indicating |
| US4823606A (en) * | 1988-06-23 | 1989-04-25 | Carron & Company | Diaphragm transducer for sensing loading |
| US5102273A (en) * | 1991-02-25 | 1992-04-07 | Allied-Signal Inc. | Visually indicated preloaded bolt |
| GB9207880D0 (en) * | 1992-04-10 | 1992-05-27 | Ceney Stanley | Load indicating fasteners |
| GB2306601A (en) | 1995-10-24 | 1997-05-07 | Exotech Ltd | Tightness indicator for threaded fasteners |
| NO302715B1 (no) * | 1996-06-19 | 1998-04-14 | Scan Mag Sense As | Innretning for måling av kompresjonskrefter |
| US5668323A (en) * | 1996-07-12 | 1997-09-16 | Waxman; Cory S. | Method and apparatus for indicating a load |
| US6204771B1 (en) * | 1997-08-19 | 2001-03-20 | Ronald C. Clarke | Load indicating fastener systems method and apparatus |
| CA2300894C (en) * | 1997-08-19 | 2006-06-06 | Stanley Ceney | Load indicating fastener systems method and apparatus |
| US7698949B2 (en) | 2005-09-09 | 2010-04-20 | The Boeing Company | Active washers for monitoring bolted joints |
| US7412898B1 (en) * | 2006-07-28 | 2008-08-19 | Disney Enterprises, Inc. | Load sensing system including RFID tagged fasteners |
| US8024979B2 (en) * | 2006-08-24 | 2011-09-27 | Clarke Ronald C | Indicating fastener loading |
| JP5061387B2 (ja) * | 2007-08-28 | 2012-10-31 | 国立大学法人京都大学 | 電極付きプローブおよびそれを用いた静電容量型荷重計 |
| GB201300093D0 (en) * | 2013-01-04 | 2013-02-20 | Phipps Maria J | Load indicating nut/washer |
| TWI518253B (zh) * | 2013-03-12 | 2016-01-21 | Kabo Tool Co | Can feel the tension of the screw pieces |
-
2011
- 2011-08-31 GB GBGB1115040.6A patent/GB201115040D0/en not_active Ceased
-
2012
- 2012-08-29 BR BR112014004419-8A patent/BR112014004419B1/pt not_active IP Right Cessation
- 2012-08-29 KR KR1020147007864A patent/KR102043812B1/ko not_active Expired - Fee Related
- 2012-08-29 JP JP2014527732A patent/JP2014525578A/ja active Pending
- 2012-08-29 CA CA2881624A patent/CA2881624C/en active Active
- 2012-08-29 EP EP12801622.7A patent/EP2751537B1/en active Active
- 2012-08-29 US US14/241,195 patent/US9612172B2/en not_active Expired - Fee Related
- 2012-08-29 CN CN201280045628.2A patent/CN103975228B/zh not_active Expired - Fee Related
- 2012-08-29 WO PCT/GB2012/052114 patent/WO2013030567A1/en not_active Ceased
- 2012-08-29 AU AU2012300631A patent/AU2012300631B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU2012300631B2 (en) | 2015-11-26 |
| KR20140077890A (ko) | 2014-06-24 |
| US20140283624A1 (en) | 2014-09-25 |
| BR112014004419A2 (pt) | 2017-03-21 |
| GB201115040D0 (en) | 2011-10-12 |
| AU2012300631A1 (en) | 2014-03-13 |
| EP2751537A1 (en) | 2014-07-09 |
| CN103975228A (zh) | 2014-08-06 |
| CA2881624A1 (en) | 2013-03-07 |
| WO2013030567A1 (en) | 2013-03-07 |
| AU2012300631A8 (en) | 2015-10-29 |
| CN103975228B (zh) | 2016-11-02 |
| US9612172B2 (en) | 2017-04-04 |
| JP2014525578A (ja) | 2014-09-29 |
| EP2751537B1 (en) | 2019-10-02 |
| KR102043812B1 (ko) | 2019-11-12 |
| BR112014004419B1 (pt) | 2020-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20170825 |