JP4881158B2 - タイヤ点検装置および方法 - Google Patents
タイヤ点検装置および方法 Download PDFInfo
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- JP4881158B2 JP4881158B2 JP2006526147A JP2006526147A JP4881158B2 JP 4881158 B2 JP4881158 B2 JP 4881158B2 JP 2006526147 A JP2006526147 A JP 2006526147A JP 2006526147 A JP2006526147 A JP 2006526147A JP 4881158 B2 JP4881158 B2 JP 4881158B2
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
- G01B11/162—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means by speckle- or shearing interferometry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
- B60C25/002—Inspecting tyres
- B60C25/007—Inspecting tyres outside surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
- G01L17/005—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies using a sensor contacting the exterior surface, e.g. for measuring deformation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/027—Tyres using light, e.g. infrared, ultraviolet or holographic techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Tires In General (AREA)
Description
図2は、本発明の装置の概略図である。
図3Aは、タイヤが応力をかけられていない場合のタイヤ検査設備の概略図である。
図3Bは、タイヤが応力をかけられた状態に或る場合のタイヤ検査設備の概略図である。
図4Aは、図4Bのための凡例である。この凡例は、図4Bで使用される工程シーケンス中に種々のレベルに置かれたタイヤで取り込まれたイメージに名称を付けるのに役立つ。
図4Bは、応力をかけられていないときおよび真空作用のような普通の応力をかけた状態を適用したときの応力をかけられた状態の異なったイメージを取り込み、演算処理するコンピュータの演算シーケンスのブロック図である。
図5は、検査対象として使用される較正ブロックを示しているタイヤ検査装置および本発明の方法の代表的な出力である。
ここで用いる異常という用語は、タイヤ構成要素の厚さの変動の結果として加硫タイヤ内に閉じ込められた空気、タイヤの小孔および空隙、分離、タイヤの加硫不足、閉じ込められた気泡、層間接着不足、コード接着不足、裸線、破断コードならびに機械構築エラーとして一般的に特徴付けることができるタイヤの欠陥として定義する。
Claims (14)
- タイヤ表面上に直接的に光をあてるコヒーレント光の光源であり、光がタイヤから反射する光源と、タイヤに応力をかけることができる圧力付与装置と、タイヤが応力をかけられた状態および応力をかけられていない状態にあるときにタイヤから直接反射してきた光を受け取るための反射光受け取り装置と、タイヤが応力をかけられているときおよび応力をかけられていないときの反射光受け取り装置からの反射光のスペックルイメージを比較し、タイヤにおける異常を確認し、比較から得た出力を生成するプロセッサと、プロセッサに電子的に接続してあってプロセッサからの出力を表示できるディスプレイ装置とを含み、光が複屈折材料またはシヤリング光学部品材料を透過しない、タイヤにおける異常を検出するための異常検出装置。
- 光源がレーザである請求項1記載の装置。
- さらに、光源とタイヤの間に設置してあり、タイヤ表面の一部に渡って光を分布させるディフューザを含む、請求項1記載の装置。
- 反射光受け取り装置がコンピュータに電子的に接続してある、請求項1記載の装置。
- プロセッサが出力を表示するコンピュータで作動するソフトウェアである、請求項1記載の装置。
- コヒーレント光の光源を用意する工程と、タイヤ表面上に直接的に光をあて、タイヤからの反射光を生成する工程と、タイヤに応力をかける工程と、タイヤが応力をかけられた状態および応力をかけられていない状態にあるときにタイヤから直接反射してきた光を受け取るための反射光受け取り装置を用意する工程と、タイヤが応力をかけられているときおよび応力をかけられていないときの反射光受け取り装置からの反射光のスペックルイメージを見て比較し、タイヤにおける異常を確認し、比較から得た出力を生成するプロセッサを用意する工程と、プロセッサに電子的に接続した装置からプロセッサからの出力を表示する工程とを含み、光が複屈折材料またはシヤリング光学部品材料を透過しない、タイヤにおける異常を検出する方法。
- 光源がレーザである、請求項6記載の方法。
- 反射光受け取り装置がカメラである、請求項6記載の方法。
- さらに、カメラからコンピュータへイメージを送る工程を含む、請求項8記載の方法。
- プロセッサが出力を表示するコンピュータで作動するソフトウェアである、請求項6記載の方法。
- 出力が、タイヤが応力をかけられた状態および応力をかけられていない状態にあるときに光が当たっているタイヤ表面上に直接示されるコヒーレント光の光源の反射拡散ビームからのものであり、光が複屈折材料またはシヤリング光学部品材料を透過しておらず、出力が、応力をかけられた状態および応力をかけられていない状態または多数の応力をかけられた状態においてタイヤ上に示される反射光を比較した結果であり、出力が、タイヤ上に示されたるコヒーレント光の拡散ビームから得られる異常の単一のスペックルイメージとして特徴付けられる、コンピュータからの出力を含むタイヤの異常のイメージ。
- タイヤにおける異常の大きさを決めるために基準化した請求項11記載のイメージ。
- 散乱スペックル反射として特徴付けられる、請求項11記載のイメージ。
- 出力がイメージの可視性を向上させるように多数のカラーとなっている、請求項11記載のイメージ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/659,466 | 2003-09-10 | ||
US10/659,466 US6934018B2 (en) | 2003-09-10 | 2003-09-10 | Tire inspection apparatus and method |
PCT/US2004/028219 WO2005025894A2 (en) | 2003-09-10 | 2004-08-30 | Tire inspection apparatus and method |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007505313A JP2007505313A (ja) | 2007-03-08 |
JP4881158B2 true JP4881158B2 (ja) | 2012-02-22 |
Family
ID=34226958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006526147A Expired - Fee Related JP4881158B2 (ja) | 2003-09-10 | 2004-08-30 | タイヤ点検装置および方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6934018B2 (ja) |
EP (1) | EP1664670A4 (ja) |
JP (1) | JP4881158B2 (ja) |
KR (1) | KR20060132801A (ja) |
CN (1) | CN100472175C (ja) |
AU (1) | AU2004272541B2 (ja) |
CA (1) | CA2538643C (ja) |
WO (1) | WO2005025894A2 (ja) |
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Also Published As
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WO2005025894A2 (en) | 2005-03-24 |
JP2007505313A (ja) | 2007-03-08 |
CA2538643A1 (en) | 2005-03-24 |
EP1664670A4 (en) | 2011-05-18 |
CA2538643C (en) | 2011-12-20 |
KR20060132801A (ko) | 2006-12-22 |
US20050052637A1 (en) | 2005-03-10 |
EP1664670A2 (en) | 2006-06-07 |
CN100472175C (zh) | 2009-03-25 |
WO2005025894A3 (en) | 2005-05-06 |
US6934018B2 (en) | 2005-08-23 |
AU2004272541A1 (en) | 2005-03-24 |
CN1849496A (zh) | 2006-10-18 |
AU2004272541B2 (en) | 2008-01-17 |
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