JPS61231432A - Inspection method in tire uniformity machine - Google Patents

Inspection method in tire uniformity machine

Info

Publication number
JPS61231432A
JPS61231432A JP60071259A JP7125985A JPS61231432A JP S61231432 A JPS61231432 A JP S61231432A JP 60071259 A JP60071259 A JP 60071259A JP 7125985 A JP7125985 A JP 7125985A JP S61231432 A JPS61231432 A JP S61231432A
Authority
JP
Japan
Prior art keywords
output
axis
tire
axis direction
drum
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.)
Pending
Application number
JP60071259A
Other languages
Japanese (ja)
Inventor
Takeshi Yonezawa
米澤 猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP60071259A priority Critical patent/JPS61231432A/en
Publication of JPS61231432A publication Critical patent/JPS61231432A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/02Tyres
    • G01M17/022Tyres the tyre co-operating with rotatable rolls

Abstract

PURPOSE:To enhance measuring accuracy and working efficiency by rapidly and certainly detecting the presence of the generation of abnormality from a uniformity machine, by comparing the output in a Y-axis direction measured by a load cell in an X-axis direction with that in the Y-axis direction measured by the load cell in the Y-axis direction during the measurement of the uniformity of a tire. CONSTITUTION:A tire W is supported in a freely rotatable manner by a support shaft 1. The variation of force generated by the tire W is measured by the X-axis load cells 4a, 4b and Y-axis load cells 5a, 5b attached to both ends of the drum shaft 3 pressing a drum 2 to the tire W. The difference of output in the X-axis direction is calculated by two x-axis load cells and corrected by the constant determined from the diameter and axial length of the drum 2 to calculate the output in the Y-axis direction generated by the tire W. The output in the Y-axis direction is compared with the output in the Y-axis direction calculated from two Y-axis load cells and, by the difference between both outputs, the abnormality of a uniformity machine is detected and, therefore, the presence of the generation of abnormality can be rapidly and certainly detected and dynamic confirmation of accuracy is enabled.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、タイヤユニフォミティマシンに於ける検査
方法に係わり、更に詳しくはX軸ロードセルにより求め
たY軸方向の出力と、Y軸ロードセルから求めたY軸方
向の出力とを比較してユニフォミティマシンの機器類の
異常を検出する検査方法に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an inspection method for a tire uniformity machine, and more specifically, the present invention relates to an inspection method for a tire uniformity machine, and more specifically, an output in the Y-axis direction determined by an X-axis load cell and an output determined from the Y-axis load cell. This invention relates to an inspection method for detecting abnormalities in equipment of a uniformity machine by comparing outputs in the Y-axis direction.

〔従来技術〕[Prior art]

従来、タイヤユニフォミティを測定する方法としては、
例えばドラム軸の両端をそれぞれX−Yロードセルで支
持し、そしてX方向の成分とY軸方向の成分とをそれぞ
れ加算してX方向の出力(RF小出力、Y方向の出力(
LF比出力とし、その変動分(RFV、LFV)を求め
てタイヤユニフォミティを測定していた。
Traditionally, the method of measuring tire uniformity is
For example, both ends of the drum shaft are supported by X-Y load cells, and the X-direction component and Y-direction component are added together to output the X-direction (RF small output, Y-direction output (
Tire uniformity was measured by determining the LF specific output and determining its variation (RFV, LFV).

然しなから、このような従来のユニフォミティマシンに
おいては、X方向の出力(RF小出力とY方向の出力(
LF比出力の変動分(RFV、LFV)の精度が、オン
ライン状態で維持できているかどうかの確認方法がなか
ったため、例えばユニフォミティマシンの機器類に異常
があったとしてもその異常をすぐに発見することができ
ず、次工程においてタイヤユニフォミティの異常を発見
して異常の発生しているタイヤから再度タイヤのユニフ
ォミティを測定していた。そのため、作業能率を著しく
低下させる原因となっていた。
However, in such a conventional uniformity machine, the output in the X direction (RF small output and the output in the Y direction (
There was no way to check whether the accuracy of fluctuations in LF ratio output (RFV, LFV) could be maintained online, so even if there was an abnormality in the equipment of the uniformity machine, for example, the abnormality would be discovered immediately. However, in the next process, an abnormality in tire uniformity was discovered and the tire uniformity was measured again starting from the tire with the abnormality. This caused a significant decrease in work efficiency.

〔発明の目的〕[Purpose of the invention]

この発明は、係る従来の問題点に着目して案出されたも
ので、その目的とするところはタイヤのユニフォミティ
の測定中にX軸方向のロードセルでY軸方向の出力を測
定すると共に、この測定したY軸方向の出力と、Y軸方
向のロードセルで測定したY軸方向の出力とを比較して
ユニフォミティマシンの機器類に異常が発生したか否か
を迅速に、しかも確実に検出し、タイヤユニフォミティ
の測定精度を向上させるとともに、作業能率を著しく向
上させるタイヤユニフォミティマシンに於ける検査方法
を提供するものである。
This invention was devised by focusing on the conventional problems, and its purpose is to measure the output in the Y-axis direction using a load cell in the X-axis direction while measuring the uniformity of a tire. By comparing the measured output in the Y-axis direction with the output in the Y-axis direction measured by the Y-axis load cell, it is possible to quickly and reliably detect whether or not an abnormality has occurred in the equipment of the uniformity machine. The present invention provides an inspection method for a tire uniformity machine that improves the measurement accuracy of tire uniformity and significantly improves work efficiency.

〔発明の構成〕[Structure of the invention]

この発明は、上記目的を達成するため回転自在に支持さ
れたタイヤにドラムを押しつけ、このドラムの両端に取
付けたロードセルにより、タイヤが発生するX軸及びY
軸方向の力の変動を測定するタイヤユニフォミティマシ
ンにおいて、前記ドラムの両端に取付けた2個のX軸ロ
ードセルによりX軸方向の出力の差を求め、これをドラ
ムの径とドラム軸長から定まる定数で補正することによ
り、タイヤが発生するY軸方向の出力を求め、このY軸
方向の出力とドラムの両端に取付けた2個のY軸ロード
セルから求めたY軸方向の出力とを比較し、この出力の
相違によりユニフォミティマシンの機器類の異常を検出
することを要旨とするものである。
In order to achieve the above object, this invention presses a drum against a rotatably supported tire, and uses load cells attached to both ends of the drum to generate X-axis and Y-axis
In a tire uniformity machine that measures changes in force in the axial direction, the difference in output in the X-axis direction is determined by two X-axis load cells attached to both ends of the drum, and this is determined as a constant determined from the drum diameter and drum axial length. By correcting with The purpose of this method is to detect an abnormality in the equipment of the uniformity machine based on the difference in output.

〔発明の実施例〕[Embodiments of the invention]

以下添付図面に基づき、この発明の詳細な説明する。 The present invention will be described in detail below based on the accompanying drawings.

第1図及び第2図は、この発明を実施したタイヤユニフ
ォミティマシンの概略構成図の正面図と底面図とを示し
、この第1図及び第2図は支持軸lに回転自在に支持さ
れたタイヤWに、ドラム2を押し付けたドラム軸3の両
端に取付けたX軸ロードセル4a、4b (圧力の変化
を電圧変化に変換して出力する圧力センサ)と、Y軸ロ
ードセル5a、5b(圧力の変化を電圧変化に変換して
出力する圧力センサ)とにより、タイヤWが発生する力
の変動を測定することを示している。
1 and 2 show a front view and a bottom view of a schematic configuration diagram of a tire uniformity machine embodying the present invention. X-axis load cells 4a and 4b (pressure sensors that convert pressure changes into voltage changes and output them) are attached to both ends of the drum shaft 3 that presses the drum 2 against the tire W, and Y-axis load cells 5a and 5b (pressure sensors that convert pressure changes into voltage changes and output the output) This shows that the variation in force generated by the tire W is measured by a pressure sensor that converts the change into a voltage change and outputs it.

そして、この発明ではタイヤユニフォミティの異常を検
出するために、まずX軸ロードセル4a、4bにより、
タイヤWから発生するX軸方向の出力(RFニラシアル
方向の力)と、Y軸方向の出力(LFニラチラル方向の
力)とを同時に検出すると共に、Y軸ロードセル5a。
In this invention, in order to detect an abnormality in tire uniformity, first, the X-axis load cells 4a and 4b
The Y-axis load cell 5a simultaneously detects the output in the X-axis direction (RF nilateral force) generated from the tire W and the output in the Y-axis direction (LF nilateral force).

5bにより、Y軸方向の出力(LFニラチラル方向の力
)を求めて、X軸ロードセル4a、4bにより求めたY
軸方向の出力(LFニラチラル方向の力)と、Y軸ロー
ドセル5a、5bにより求めたY軸方向の出力(LFニ
ラチラル方向の力)とを比較することによって、タイヤ
ユニフォミティの測定中に異常を検出するようにしたも
のである。
5b to determine the output in the Y-axis direction (LF niradiral direction force), and
Abnormalities are detected during tire uniformity measurement by comparing the output in the axial direction (force in the LF lateral direction) with the output in the Y-axis direction (force in the LF lateral direction) obtained by the Y-axis load cells 5a and 5b. It was designed to do so.

以下、タイヤユニフォミティマシンの異常検出方法を詳
細に説明する。
Hereinafter, a method for detecting an abnormality in a tire uniformity machine will be described in detail.

まず、第3図は第1図を模式図的に表した説明図を示し
、ドラム軸3の両端に設けたロードセル4a、4bの位
置をそれぞれA点、B点とし、更にタイヤWとドラム2
との接点をCとする。そして、0点にタイヤWから発生
するX軸方向の出力(RF)とY軸方向の出力(L F
)とが加わると、前記A点には、RF/2と、LFのモ
ーメント力(−KLF)の合力が働き、また一方B点に
は、RF/2と、LFのモーメント力(KLF)の合力
が働くものである。
First, FIG. 3 shows an explanatory diagram that schematically represents FIG.
Let the contact point be C. Then, the output in the X-axis direction (RF) generated from the tire W and the output in the Y-axis direction (L F
), the resultant force of RF/2 and LF moment force (-KLF) acts on point A, while the resultant force of RF/2 and LF moment force (KLF) acts on point B. The resultant force acts.

ここで、Kはドラム2の半径dと、ドラム軸長lの比率
で決定される定数である。
Here, K is a constant determined by the ratio of the radius d of the drum 2 and the drum axis length l.

従って、d−LF−1−KLF。Therefore, d-LF-1-KLF.

d = I K、従って、K=dllになることは明ら
かである。
It is clear that d = I K, so K = dll.

即ち、A点のロードセル4aのX方向の出力をR,、B
点のロードセル4bのX方向の出力をR1とすると、R
1及びRhは次式で表わされる。
That is, the output in the X direction of the load cell 4a at point A is R,,B
If the output in the X direction of the load cell 4b at a point is R1, then R
1 and Rh are represented by the following formula.

R,=RF/2−KLF。R, = RF/2-KLF.

RI、=RF/2+KLF、 但し、K大dl!!、こ
の式から、LFは次式となる。
RI, = RF/2 + KLF, however, K large dl! ! , From this equation, LF becomes the following equation.

LF=d/ff  (−R,+Rb )  ・・・(1
)+11式の右辺から、X軸方向の2個のロードセル4
a、4bより、Y軸方向の出力(L F)左辺が求まる
のである。
LF=d/ff (-R, +Rb)...(1
) + From the right side of formula 11, two load cells 4 in the X-axis direction
From a and 4b, the left side of the output (LF) in the Y-axis direction can be found.

ここで、LFの極性のとり方で、(11式は、LF=d
/β (R,−R,)  ・・・(1)。
Here, depending on the polarity of LF, (Formula 11 is LF=d
/β (R, -R,) ... (1).

としても良い。It's good as well.

また、A、Bに働<RFO力は、Cが実際には面である
ため、面圧の圧力分布が一様でないと完全には一致しな
い。
Furthermore, since C is actually a surface, the <RFO forces acting on A and B will not match perfectly unless the pressure distribution of the surface pressure is uniform.

しかし、ドラム軸長lがタイヤ幅に比較して十分に長い
ことから、その誤差はKLFに対して十分に小さく、後
述する第5図、第6図、第7図に見られるように、(1
)、 (1)’式が成立する。
However, since the drum axis length l is sufficiently long compared to the tire width, the error is sufficiently small with respect to KLF, and as seen in Figs. 5, 6, and 7 described later, ( 1
), (1)' formula holds true.

上記のユニフォミティマシンのロードセル4a、4bに
よりタイヤWから発生するX軸方向の出力(RFニラシ
アル方向の力)と、Y軸方向の出力(LFニラチラル方
向の力)とを同時に求める場合の電気的な回路としては
、例えば第4図に示すようになる。
Electrical information when simultaneously determining the output in the X-axis direction (RF nilateral force) and the output in the Y-axis direction (LF nilateral force) generated from the tire W using the load cells 4a and 4b of the uniformity machine described above. The circuit is as shown in FIG. 4, for example.

即ち、第4図において、R,及びRhは2個のロードセ
ル、5a、5bは増幅器、そして加算器7と減算器8と
により、RFニラシアル方向の力と、LFニラチラル方
向の力とを求めるのである。
That is, in FIG. 4, R and Rh are two load cells, 5a and 5b are amplifiers, and an adder 7 and a subtracter 8 are used to obtain the force in the RF nilateral direction and the force in the LF nilateral direction. be.

次にこの発明における2個のロードセルR1及びRhを
使用したユニフォミティマシンで2種類のタイヤW1.
W2.W3 (第5図+8) 〜第5図(C))、(第
6図(a) 〜第6図(C))及び(第7図(a)〜第
7図(C))の力の変動を測定した波形を、従来のX軸
ロードセルとY軸ロードセルとで測定したタイヤWの力
の変動を測定した波形(第5図(dl)、(第6図(d
))、(第7図(d))と比較しながら説明する。
Next, using the uniformity machine using the two load cells R1 and Rh in this invention, two types of tires W1.
W2. W3 (Fig. 5 + 8) - Fig. 5 (C)), (Fig. 6 (a) - Fig. 6 (C)) and (Fig. 7 (a) - Fig. 7 (C)) The waveforms that measured the fluctuations were compared to the waveforms that measured the fluctuations in the force of the tire W measured using the conventional X-axis load cell and Y-axis load cell (Fig. 5 (dl), (Fig. 6 (dl)).
)) (FIG. 7(d)).

第5図(a)、第6図(a)、第7図(alは、ロード
セルR1側の測定した波形、第5図中)、第6図(b)
Figure 5 (a), Figure 6 (a), Figure 7 (al is the waveform measured on the load cell R1 side, in Figure 5), Figure 6 (b)
.

第7図(b)は、ロードセルRh側の測定した波形、第
5図(C)、第6図(C)、第7図(C)は、R,及び
Rbを合成した波形を示している。
FIG. 7(b) shows the waveform measured on the load cell Rh side, and FIG. 5(C), FIG. 6(C), and FIG. 7(C) show the combined waveform of R and Rb. .

このR1及びR1を合成した波形第5図(C)。FIG. 5(C) is a waveform obtained by combining these R1 and R1.

第6図(C)、第7図(C)と、従来のY軸ロードセル
で測定したタイヤWの波形(第5図(d))、(第6図
(d)、第7図(d)))と比較すると、略波形が一致
することがわかる。
Figure 6 (C), Figure 7 (C), and the waveforms of the tire W measured with a conventional Y-axis load cell (Figure 5 (d)), (Figure 6 (d), Figure 7 (d) )), it can be seen that the waveforms approximately match.

即ち、X軸方向のロードセルR1及びRbからY軸方向
の出力を合成することが出来るのである。
That is, it is possible to synthesize the outputs in the Y-axis direction from the load cells R1 and Rb in the X-axis direction.

次に、上記のユニフォミティマシンにおいて異常を検査
する場合には、第7図のブロック図に示すように、ドラ
ム軸3の両端に取付けたX軸ロードセル4a、4bと、
Y軸ロードセル5a、5bとらの出力R,,L、及びR
h、Lbをそれぞれの合算しくRa + La 、 R
h + Lb )これらの合算出力を比較器10におい
て比較する。そして、両方の合算出力のデータが同じ場
合には正常であり、またデータが異なる場合には警報の
出力を発してユニフォミティマシンを停止させるのであ
る。
Next, when inspecting for abnormalities in the above uniformity machine, as shown in the block diagram of FIG.
Outputs R, , L, and R of Y-axis load cells 5a and 5b
The sum of h and Lb is Ra + La, R
h + Lb) These combined outputs are compared in the comparator 10. If the data of both combined outputs are the same, it is normal, and if the data are different, an alarm is output and the uniformity machine is stopped.

〔発明の効果〕〔Effect of the invention〕

この発明は、上記のように回転自在に支持されたタイヤ
にドラムを押しつけ、このドラムの両端に取付けたロー
ドセルにより、タイヤが発生するX軸及びY軸方向の力
の変動を測定するタイヤユニフォミティマシンにおいて
、前記ドラムの両端に取付けた2個のX軸ロードセルに
よりX軸方向の出力の差を求め、これをドラムの径とド
ラム軸長から定まる定数で補正することにより、タイヤ
が発生するY軸方向の出力を求め、このY軸方向の出力
とドラムの両端に取付けた2個のY軸ロードセルから求
めたY軸方向の出力とを比較し、この出力の相違により
ユニフォミティマシンの機器類の異常を検出するように
したため、ユニフォミティマシンの機器類に異常が発生
したか否かを迅速に、しかも確実に検出するので動的な
精度確認が可能となり、従って、日常点検のマスターチ
ェック等の周期延長や、精度変動の要因の把握が極めて
容易となる効果がある。またタイヤユニフォミティの測
定精度を向上させるとともに、作業能率を著しく向上さ
せることが出来、特に簡易的なユニフォミティマシンに
実施する場合には有効である。
This invention is a tire uniformity machine that presses a drum against a rotatably supported tire as described above, and measures variations in force in the X-axis and Y-axis directions generated by the tire using load cells attached to both ends of the drum. , the difference in output in the X-axis direction is determined using two X-axis load cells attached to both ends of the drum, and by correcting this with a constant determined from the diameter of the drum and the length of the drum axis, the Y-axis generated by the tire is determined. The output in the Y-axis direction is compared with the output in the Y-axis direction obtained from the two Y-axis load cells attached to both ends of the drum.Differences in the outputs are detected as abnormalities in the equipment of the uniformity machine. Since it detects whether or not an abnormality has occurred in the equipment of the uniformity machine, it is quickly and reliably detected, making it possible to dynamically check accuracy, and therefore extending the cycle of daily inspections such as master checks. This has the effect of making it extremely easy to understand the causes of accuracy fluctuations. Furthermore, it is possible to improve the measurement accuracy of tire uniformity and to significantly improve work efficiency, which is particularly effective when applied to a simple uniformity machine.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明を実施したユニフォミティマシンの正
面図、第2図は第1図の底面図、第3図は第1図を模式
図的に表した説明図、第4図はユニフォミティマシンの
測定回路を示す説明図、第5図(8)〜第5図(d)、
第6図(a) 〜第6図(d)及び第7図(al〜第7
図(d)はこの発明の2個のロードセルR,及びR5を
使用したユニフォミティマシンで2種類のタイヤWl、
W2の力の変動を測定した波形と従来のX軸ロードセル
とY軸ロードセルとで測定したタイヤWの力の変動を測
定した波形と比較したグラフ説明図、第8図はユニフォ
ミティマシンの異常を検出するための電気回路のブロッ
ク図である。 2・・・ドラム、3・・・ドラム軸、4a、4b・・・
X軸ロードセル(Re 、Rh ) 、5 a 、  
5 b ・・Y軸ロードセル(L、、L、)、W・・・
タイヤ、d・・・ドラム径、!・・・ドラム軸長、K・
・・定数、RF・・・X方向の出力、LF・・・Y方向
の出力。
Figure 1 is a front view of a uniformity machine implementing this invention, Figure 2 is a bottom view of Figure 1, Figure 3 is an explanatory diagram schematically representing Figure 1, and Figure 4 is a diagram of the uniformity machine. Explanatory diagram showing the measurement circuit, FIGS. 5(8) to 5(d),
Figures 6(a) to 6(d) and Figures 7(al to 7)
Figure (d) shows a uniform machine using two load cells R and R5 of the present invention, and two types of tires Wl,
A graph explanatory diagram comparing the waveform that measured the force variation of W2 with the waveform that measured the force variation of the tire W measured with the conventional X-axis load cell and Y-axis load cell. Figure 8 shows the detection of an abnormality in the uniformity machine. FIG. 2 is a block diagram of an electric circuit for 2...Drum, 3...Drum shaft, 4a, 4b...
X-axis load cell (Re, Rh), 5a,
5 b...Y-axis load cell (L,,L,), W...
Tire, d...drum diameter,! ...Drum shaft length, K.
...Constant, RF...Output in the X direction, LF...Output in the Y direction.

Claims (1)

【特許請求の範囲】[Claims] 回転自在に支持されたタイヤにドラムを押しつけ、この
ドラムの両端に取付けたロードセルにより、タイヤが発
生するX軸及びY軸方向の力の変動を測定するタイヤユ
ニフォミティマシンにおいて、前記ドラムの両端に取付
けた2個のX軸ロードセルによりX軸方向の出力の差を
求め、これをドラムの径とドラム軸長から定まる定数で
補正することにより、タイヤが発生するY軸方向の出力
を求め、このY軸方向の出力とドラムの両端に取付けた
2個のY軸ロードセルから求めたY軸方向の出力とを比
較し、この出力の相違によりユニフォミティマシンの機
器類の異常を検出することを特徴とするタイヤユニフォ
ミティマシンに於ける検査方法。
In a tire uniformity machine, a drum is pressed against a rotatably supported tire, and load cells installed at both ends of the drum measure the fluctuations in the force generated by the tire in the X-axis and Y-axis directions. By calculating the difference in the output in the X-axis direction using two X-axis load cells, and correcting this with a constant determined from the drum diameter and drum axis length, the output in the Y-axis direction generated by the tire is determined. The output in the axial direction is compared with the output in the Y-axis direction obtained from two Y-axis load cells attached to both ends of the drum, and an abnormality in the equipment of the uniformity machine is detected based on the difference in output. Inspection method for tire uniformity machines.
JP60071259A 1985-04-05 1985-04-05 Inspection method in tire uniformity machine Pending JPS61231432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60071259A JPS61231432A (en) 1985-04-05 1985-04-05 Inspection method in tire uniformity machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60071259A JPS61231432A (en) 1985-04-05 1985-04-05 Inspection method in tire uniformity machine

Publications (1)

Publication Number Publication Date
JPS61231432A true JPS61231432A (en) 1986-10-15

Family

ID=13455543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60071259A Pending JPS61231432A (en) 1985-04-05 1985-04-05 Inspection method in tire uniformity machine

Country Status (1)

Country Link
JP (1) JPS61231432A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004897A1 (en) * 1996-07-30 1998-02-05 The Goodyear Tire & Rubber Company Method of enhancing the measurement accuracy of a tire uniformity machine
US6035709A (en) * 1996-07-30 2000-03-14 The Goodyear Tire & Rubber Company Method of enhancing the measurement accuracy of a tire uniformity machine
EP1134573A2 (en) * 2000-03-06 2001-09-19 The Goodyear Tire & Rubber Company Method to identify and remove machine contributions from tire uniformity measurements
KR100619171B1 (en) 2004-08-30 2006-08-31 한국타이어 주식회사 A uniformity machine with tire diameter measurement
KR100782474B1 (en) 2006-11-20 2007-12-05 한국타이어 주식회사 Impact force measuring apparatus of traveling tire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004897A1 (en) * 1996-07-30 1998-02-05 The Goodyear Tire & Rubber Company Method of enhancing the measurement accuracy of a tire uniformity machine
US6035709A (en) * 1996-07-30 2000-03-14 The Goodyear Tire & Rubber Company Method of enhancing the measurement accuracy of a tire uniformity machine
EP1134573A2 (en) * 2000-03-06 2001-09-19 The Goodyear Tire & Rubber Company Method to identify and remove machine contributions from tire uniformity measurements
EP1134573A3 (en) * 2000-03-06 2003-01-29 The Goodyear Tire & Rubber Company Method to identify and remove machine contributions from tire uniformity measurements
KR100619171B1 (en) 2004-08-30 2006-08-31 한국타이어 주식회사 A uniformity machine with tire diameter measurement
KR100782474B1 (en) 2006-11-20 2007-12-05 한국타이어 주식회사 Impact force measuring apparatus of traveling tire

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