WO2006112409A1 - 回転体表面の凹凸データ補正方法 - Google Patents
回転体表面の凹凸データ補正方法 Download PDFInfo
- Publication number
- WO2006112409A1 WO2006112409A1 PCT/JP2006/307965 JP2006307965W WO2006112409A1 WO 2006112409 A1 WO2006112409 A1 WO 2006112409A1 JP 2006307965 W JP2006307965 W JP 2006307965W WO 2006112409 A1 WO2006112409 A1 WO 2006112409A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- unevenness
- data
- rotating body
- point
- Prior art date
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
- B29D2030/0066—Tyre quality control during manufacturing
Definitions
- the present invention relates to a method for measuring irregularities on the surface of a rotating body such as a tire, and more particularly to a method for correcting irregularity data measured at equal angles around the rotation axis of a rotating body.
- Patent Documents 1 and 2 Conventionally, as one of the appearance inspections of product tires performed when shipping manufactured tires, it has been performed to inspect the unevenness of tire side portions or tire crown portions (for example, Patent Documents 1 and 2).
- FIG. 4 is a view showing an example of the configuration of a conventional tire side unevenness inspection apparatus 50.
- the unevenness inspection apparatus 50 includes a tire holding apparatus 52 in which a tire 10 as a subject is connected to a rotation drive device 51.
- the rim 52r of the tire 10 is filled with a predetermined internal pressure, and the tire 10 is rotated at a constant speed while being placed close to the tire side portion 10s of the tire 10, such as an LED or a laser.
- the distance between the surface of the tire side portion 10s and the surface of the non-contact displacement meter 53 is measured at a predetermined sampling interval, and the uneven state of the surface of the tire side portion 10s is measured.
- the tire side portion 10s is examined for exploration light and the reflected light is received, and the distance from the non-contact displacement meter 53 to the tire side portion 10s is measured in a non-contact manner, and then the measurement is performed.
- the obtained distance data is converted into the unevenness data of the tire side portion 10s by the control / calculation device 54.
- the second non-contact displacement meter 55 is also disposed at a position facing the tire crown portion 10t, and the second non-contact displacement meter 55 is used to position the second non-contact displacement meter 55.
- the tire outer diameter is measured by measuring the distance between the total 55 and the tire crown 10t.
- the second non-contact displacement meter 55 it is possible to measure the unevenness state of the surface of the tire crown portion 10t in the same manner as the tire side portion 10s.
- the radius value r which is the concavo-convex value at the kth measurement point X of
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-361344
- Patent Document 2 Japanese Translation of Special Publication 2005-501245
- the surface As A to B and D to A, the surface is swollen when the measurement point is close to the rotation center of the inspection device, and when it is far from B to D in the figure, the surface is shrunk.
- the measured data (radius value r) is affected by the eccentricity of the surface that has expanded or contracted.
- the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a method for correcting unevenness data on the surface of a rotating body including eccentricity to data having no influence of eccentricity.
- the inventors calculated surface unevenness data at equidistant positions in the circumferential direction by interpolation from the surface unevenness data in which the measurement position was expanded and contracted, and this was calculated using the surface unevenness data of the rotating body.
- the present inventors have found that surface unevenness data having no influence of eccentricity can be obtained by obtaining surface unevenness data at evenly spaced positions on the surface.
- the invention according to claim 1 of the present application provides the unevenness on the surface of the rotating body obtained by rotating either the rotating body or a non-contact displacement meter provided at a position facing the surface of the rotating body.
- a method for correcting data the step of measuring the unevenness value of the surface of the rotating body at equiangular intervals from the rotation center of the rotating body or the displacement meter, and the rotating body from a measurement start point to an arbitrary measurement point
- the surface length of the tire is calculated, the step of associating the surface length with the measured unevenness value, and the calculated surface length of one round of the tire are divided at equal intervals to divide into the equal intervals.
- the invention according to claim 2 is the method for correcting irregularities on the surface of a rotating body according to claim 1, wherein the surface length is calculated by angularly integrating the distance between the rotation center and each measurement point. It is characterized by that. Since the measurement points are finite, the surface length is actually calculated by integrating the product of the distance to each measurement point and the sampling angle.
- the unevenness data on the surface of the rotating body obtained by rotating the rotating body and any of the non-contact displacement meters provided at positions facing the surface of the rotating body is corrected.
- the surface length of the rotating body is associated with the measured unevenness value, and the calculated tire circumference
- the surface length of the minute is divided into equal intervals, and each point divided into the equal intervals is used as an unevenness calculation point for calculating a new unevenness value.
- the unevenness value of the surface of the rotator was measured at equiangular intervals from the rotation center of the displacement meter, and calculated based on the unevenness data of the measurement point adjacent to the position of the unevenness calculation point. Since the values are the unevenness data at equidistant positions on the surface of the rotating body, the unevenness data on the surface of the rotating body including the eccentricity can be corrected to the unevenness data without the influence of the eccentricity.
- FIG. 1 is a functional block diagram showing an outline of an automatic tire appearance inspection apparatus according to the best mode of the present invention.
- FIG. 2 is a flowchart showing a method for correcting tire crown unevenness data according to the best mode.
- FIG. 3 is a diagram showing a method for correcting unevenness data according to the best mode.
- FIG. 4 is a diagram showing a conventional method for measuring unevenness data on the surface of a tire side part.
- FIG. 5 is a diagram showing a method for measuring unevenness data using a non-contact displacement meter.
- FIG. 6 is a diagram showing unevenness data of a conventional tire crown portion.
- 15c Concavity and convexity value calculation unit, 15d determination unit, 15e rotation control unit, 15M storage device.
- FIG. 1 is a functional block diagram showing an outline of the tire appearance automatic inspection device 1 according to the best mode.
- 11 is a tire holding portion that holds a rim 12 on which a tire 10 that is a subject is mounted
- 13 is a rotation that is connected to the tire holding portion 11 and rotates the tire 10 at a predetermined angular velocity.
- 14 is a non-contact type distance sensor disposed close to the tire crown 10t of the tire 10
- 15 is a distance sensor measured by the distance sensor 14 while controlling the rotational drive device 13.
- the tire 14 is a control / arithmetic unit that calculates the surface roughness of the tire 10 based on the distance data between the tire 10 and the tire crown 10t, and inspects the appearance of the tire 10.
- the tire is Rotate at ⁇ (for example, 1 ° Zsec.), sample the tire crown 10t at a predetermined angle ⁇ (for example, 0.035 °), and measure the unevenness value on the surface of the tire crown 10t. To do.
- the surface length S for one round of the tire calculated by the surface length calculator 15b is divided into equal intervals.
- each point divided into the above-mentioned equal intervals is replaced with a new radius value R.
- Determination unit 15d and a rotation control unit 15e for controlling the rotation drive device 13, and based on the distance data L between the distance sensor 14 and the tire crown 10t measured by the distance sensor 14. The unevenness value of the tire crown 10t of the tire 10 is calculated and the k
- the non-contact distance sensor 14 causes the tire crown portion to be set at every predetermined angle ⁇ .
- the distance between 10t and the distance sensor 14 is measured, and this is stored as distance data L in the storage device 15M (step S10).
- Step Sl l the surface length calculation unit 15b performs the angle integration of the radius value!: From the measurement start point to the measurement point k (actually, the radius value of the measurement point k !: and the above ⁇ k k
- the value R is calculated (step S14). Specifically, as shown in Fig. 3 (c), kk k + based on the radius values r and r at the two measurement points (measurement points before and after X) X and X adjacent to the unevenness calculation point X kk 1 k k + 1
- k is, for example, the distance between the unevenness calculation point X and the two measurement points X 1 and X 2 is D 1 and D 2, respectively, and D 1, k k k + 1 k k + 1 k
- a method of weighting the radius values r 1 and r 2 by D can be used. This gives k + 1 k k + 1
- the tire 10 Compared to the surface roughness data (X, R) of the reference tire, the tire 10 has irregularities k kO
- Step SI 5 Judgment of force
- the distance k at the measurement point X measured for each ⁇ is the distance in the tire circumferential direction between the tire crown 10t of the tire 10 to be inspected and the distance sensor 14 described above.
- the radius k 0 r is calculated from the separation data L and the rotation center force of the tire 10 from the distance L to the distance sensor, and the measurement starting point force radius value to the measurement point k !: and ⁇
- the surface length S is calculated by integrating the product with ⁇ and the unevenness data is converted to the form (X, r), kkk
- the half of the above-mentioned unevenness calculation point X is obtained by dividing the surface length S of one round of the tire into equal intervals.
- N k diameter value R is calculated based on kkk k + 1 k k + 1 based on radius values r, r at measurement points X, X adjacent to the above-mentioned unevenness calculation point X, and this is calculated on the tire crown lOt surface, etc. Since the unevenness data (X 1, R 2) at intervals is used, unevenness data without swelling or shrinkage can be obtained.
- the tire appearance inspection can be automated.
- the present invention is not limited to this, and the general rotation that can only correct the concave / convex data similarly for the tire crown portion 10t. It can also be applied to the case of correcting data measured on the surface roughness of the body.
- the unevenness data on the surface of the rotating body including eccentricity can be corrected to the unevenness data without the influence of eccentricity using the measured unevenness data, so that the accurate unevenness on the surface of the rotating body is obtained. Data can be easily obtained. Further, if the correction method is used, it is possible to easily and automatically measure unevenness data on the surface of the rotating body.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Tires In General (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0609958-0A BRPI0609958A2 (pt) | 2005-04-18 | 2006-04-14 | método para corrigir concavidade-convexidade exibidas em uma superfìcie de um corpo de rotação |
US11/911,766 US7578181B2 (en) | 2005-04-18 | 2006-04-14 | Method for correcting concave-convex exhibited on a surface of a body of rotation |
EP06731901.2A EP1873485B1 (en) | 2005-04-18 | 2006-04-14 | Method for correcting irregularities data of surface of rotator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005120362A JP4663385B2 (ja) | 2005-04-18 | 2005-04-18 | 回転体表面の凹凸データ補正方法 |
JP2005-120362 | 2005-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006112409A1 true WO2006112409A1 (ja) | 2006-10-26 |
Family
ID=37115127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307965 WO2006112409A1 (ja) | 2005-04-18 | 2006-04-14 | 回転体表面の凹凸データ補正方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7578181B2 (ja) |
EP (1) | EP1873485B1 (ja) |
JP (1) | JP4663385B2 (ja) |
BR (1) | BRPI0609958A2 (ja) |
WO (1) | WO2006112409A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008292489A (ja) * | 2007-05-23 | 2008-12-04 | Sicam Srl | 釣合い試験機などで車両ホイールの偏心を修正する方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2275777B1 (en) * | 2008-05-01 | 2018-01-17 | Kabushiki Kaisha Bridgestone | Device and method for measuring object to be measured having hollow circular cylindrical shape |
JP5518571B2 (ja) * | 2010-05-24 | 2014-06-11 | 株式会社ブリヂストン | タイヤの外観検査装置及び外観検査方法 |
US9113046B2 (en) | 2010-08-04 | 2015-08-18 | Bridgestone Corporation | Tire contour measurement data correction method and tire visual inspection device |
JP6289283B2 (ja) * | 2014-06-20 | 2018-03-07 | 株式会社ブリヂストン | 円環状回転体の表面形状データの補正方法、及び、円環状回転体の外観検査装置 |
Citations (7)
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JPS5116067A (en) * | 1974-07-31 | 1976-02-09 | Hitachi Electronics | Bubunenjokeino kyushinsochi |
JPS57207813A (en) * | 1981-06-13 | 1982-12-20 | Heidenhain Gmbh Dr Johannes | Method and device for measuring error of true circle of revolving body |
JPH02105007A (ja) * | 1988-10-14 | 1990-04-17 | Topy Ind Ltd | ホイールリム等の形状測定方法およびその装置 |
JPH10507268A (ja) * | 1994-10-18 | 1998-07-14 | テイラー ホブソン リミテッド | 真円度測定 |
JP2002162222A (ja) * | 2000-11-27 | 2002-06-07 | Yokohama Rubber Co Ltd:The | 未加硫タイヤの外形測定方法及びその装置 |
JP2004361344A (ja) | 2003-06-06 | 2004-12-24 | Sumitomo Rubber Ind Ltd | タイヤサイド部の凹凸検査方法 |
JP2005501245A (ja) | 2001-08-21 | 2005-01-13 | ソシエテ ドゥ テクノロジー ミシュラン | タイヤを検査する機械および方法 |
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IT1047307B (it) * | 1974-09-24 | 1980-09-10 | Rank Organisation Ltd | Strumento per la misurazione di superfici |
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JPH0425743A (ja) * | 1990-05-21 | 1992-01-29 | Ohtsu Tire & Rubber Co Ltd :The | タイヤ表面の凹凸判定方法 |
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JP4487387B2 (ja) * | 1999-06-25 | 2010-06-23 | 株式会社ジェイテクト | 真円度測定装置 |
WO2002010682A1 (fr) * | 2000-08-01 | 2002-02-07 | Sunway Co., Ltd. | Procede pour mesurer le profil longitudinal de la surface d'une chaussee |
JP3687896B2 (ja) * | 2000-09-27 | 2005-08-24 | 富士重工業株式会社 | 無段変速機用プーリの計測装置 |
JP4231254B2 (ja) * | 2002-08-02 | 2009-02-25 | 横浜ゴム株式会社 | タイヤの歪み状態検出方法、歪み状態検出装置及びそのタイヤ |
-
2005
- 2005-04-18 JP JP2005120362A patent/JP4663385B2/ja not_active Expired - Fee Related
-
2006
- 2006-04-14 WO PCT/JP2006/307965 patent/WO2006112409A1/ja active Application Filing
- 2006-04-14 EP EP06731901.2A patent/EP1873485B1/en active Active
- 2006-04-14 US US11/911,766 patent/US7578181B2/en not_active Expired - Fee Related
- 2006-04-14 BR BRPI0609958-0A patent/BRPI0609958A2/pt not_active IP Right Cessation
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JPS5116067A (en) * | 1974-07-31 | 1976-02-09 | Hitachi Electronics | Bubunenjokeino kyushinsochi |
JPS57207813A (en) * | 1981-06-13 | 1982-12-20 | Heidenhain Gmbh Dr Johannes | Method and device for measuring error of true circle of revolving body |
JPH02105007A (ja) * | 1988-10-14 | 1990-04-17 | Topy Ind Ltd | ホイールリム等の形状測定方法およびその装置 |
JPH10507268A (ja) * | 1994-10-18 | 1998-07-14 | テイラー ホブソン リミテッド | 真円度測定 |
US5926781A (en) | 1994-10-18 | 1999-07-20 | Taylor Hobson Limited | Roundness measuring |
JP2002162222A (ja) * | 2000-11-27 | 2002-06-07 | Yokohama Rubber Co Ltd:The | 未加硫タイヤの外形測定方法及びその装置 |
JP2005501245A (ja) | 2001-08-21 | 2005-01-13 | ソシエテ ドゥ テクノロジー ミシュラン | タイヤを検査する機械および方法 |
JP2004361344A (ja) | 2003-06-06 | 2004-12-24 | Sumitomo Rubber Ind Ltd | タイヤサイド部の凹凸検査方法 |
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Title |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008292489A (ja) * | 2007-05-23 | 2008-12-04 | Sicam Srl | 釣合い試験機などで車両ホイールの偏心を修正する方法 |
EP1995582A3 (en) * | 2007-05-23 | 2010-12-15 | SICAM S.r.l. | Method for correcting the eccentricity of a vehicle wheel in balancing machines or the like |
US8011243B2 (en) | 2007-05-23 | 2011-09-06 | Sicam S.R.L. | Method for correcting the eccentricity of a vehicle wheel in balancing machines or the like |
Also Published As
Publication number | Publication date |
---|---|
BRPI0609958A2 (pt) | 2010-05-11 |
US7578181B2 (en) | 2009-08-25 |
EP1873485A1 (en) | 2008-01-02 |
US20090049902A1 (en) | 2009-02-26 |
EP1873485B1 (en) | 2019-12-25 |
EP1873485A4 (en) | 2013-10-02 |
JP4663385B2 (ja) | 2011-04-06 |
JP2006300619A (ja) | 2006-11-02 |
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