JP2754323B2 - How to shoot tire running contact - Google Patents
How to shoot tire running contactInfo
- Publication number
- JP2754323B2 JP2754323B2 JP5297371A JP29737193A JP2754323B2 JP 2754323 B2 JP2754323 B2 JP 2754323B2 JP 5297371 A JP5297371 A JP 5297371A JP 29737193 A JP29737193 A JP 29737193A JP 2754323 B2 JP2754323 B2 JP 2754323B2
- Authority
- JP
- Japan
- Prior art keywords
- tire
- glass plate
- milk
- mixed water
- water film
- 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.)
- Expired - Fee Related
Links
Landscapes
- Tires In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はタイヤ走行接地状態撮影
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for photographing a tire running contact state.
【０００２】[0002]
【従来の技術】タイヤ走行時の接地状態を観察する場
合、一般には、ガラス板上をタイヤを走行させ、該ガラ
ス板の下方からタイヤのガラス板接地部をビデオカメラ
等で撮影する方法がとられている。2. Description of the Related Art Generally, when observing a ground contact state during running of a tire, a method of running the tire on a glass plate and photographing the grounded portion of the tire glass plate from below the glass plate with a video camera or the like is generally used. Have been.
【０００３】[0003]
【発明が解決しようとする課題】ところが、従来では、
外光の遮蔽効果が少なく、ガラス板接地部（接地面）の
照明が外光に負け、これにより、接地部の画像が暗くな
ると共に、この接地部の輪郭が不鮮明となって極めて観
察しにくかった。However, in the prior art,
The effect of shielding external light is small, and the illumination of the glass plate grounding portion (grounding surface) loses to the external light. As a result, the image of the grounding portion becomes dark, and the outline of the grounding portion becomes unclear, making it extremely difficult to observe. Was.
【０００４】そこで、本発明では、画像が鮮明でかつ接
地部の輪郭も鮮明に区別することができるタイヤ走行接
地状態撮影方法を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for photographing a tire running contact state in which the image is clear and the contour of the contact portion can be clearly distinguished.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明に係るタイヤ走行接地状態撮影方法は、ガ
ラス板上を走行しているタイヤのガラス板接地部を、該
ガラス板の下方から撮影するタイヤ走行接地状態撮影方
法であって、上記ガラス板上に、牛乳の濃度が20〜40％
である牛乳混合水膜を形成し、該牛乳混合水膜にて被膜
されているガラス板上を上記タイヤを走行させるもので
ある。In order to achieve the above-mentioned object, a method of photographing a tire traveling ground according to the present invention comprises the steps of: This is a method for photographing a tire traveling and grounding state photographed from below, wherein the milk concentration is 20 to 40% on the glass plate.
And the tire is run on a glass plate covered with the milk mixed water film.
【０００６】[0006]
【作用】タイヤの黒色に対して牛乳混合水膜は白色であ
り、接地部の輪郭が鮮明となる。また、外光の遮蔽効果
が大となる。The milk mixed water film is white against the black color of the tire, and the contour of the ground contact portion is clear. In addition, the effect of shielding external light is increased.
【０００７】[0007]
【実施例】以下、実施例を示す図面に基づいて本発明を
詳説する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.
【０００８】図１は本発明に係るタイヤ走行接地状態撮
影方法に使用する撮影装置１を示し、この撮影装置１
は、車両２が通行可能なガラス板３と、該ガラス板３の
下方位置に配設されるビデオカメラ４と、を備える。FIG. 1 shows a photographing apparatus 1 used in a method for photographing a tire running ground according to the present invention.
Is provided with a glass plate 3 through which the vehicle 2 can pass, and a video camera 4 disposed below the glass plate 3.
【０００９】しかして、ガラス板３上には、牛乳混合水
膜５が形成される。牛乳混合水膜５は、牛乳の濃度が20
〜40％とされ、かつ、その厚さ寸法Ｔが４〜６mmとされ
る。この場合の濃度は、質量％である。なお、牛乳は市
販のものを使用すればよい。Thus, a milk mixed water film 5 is formed on the glass plate 3. The milk mixed water film 5 has a milk concentration of 20%.
-40%, and the thickness dimension T is 4-6 mm. The concentration in this case is% by mass. Note that commercially available milk may be used.
【００１０】また、ビデオカメラ４は、走行中の車両２
のタイヤ６のガラス板接地部７を撮影することができ
る。なお、撮影の際には、図示省略の照明装置により、
ガラス板接地部７が照明される。[0010] The video camera 4 is connected to the moving vehicle 2.
Of the glass plate grounding portion 7 of the tire 6 can be photographed. In addition, at the time of shooting, a lighting device (not shown)
The glass plate grounding section 7 is illuminated.
【００１１】次に、上述の如く構成された撮影装置１を
使用したタイヤ走行接地状態撮影方法を説明する。Next, a description will be given of a method of photographing the tire running and ground contact state using the photographing apparatus 1 configured as described above.
【００１２】車両２をガラス板３上を走行させ、下方か
ら、ビデオカメラ４にてタイヤ６のガラス板接地部７を
撮影し、この接地部７の形状とその挙動とをガラス板３
の裏面から観察する。The vehicle 2 is driven on the glass plate 3, and a video camera 4 photographs the grounded portion 7 of the glass plate of the tire 6 from below, and the shape and behavior of the grounded portion 7 are described.
Observe from the back.
【００１３】従って、タイヤ６が黒色であるのに対し
て、牛乳混合水膜５は白色であるので、図２に示すよう
に、ガラス板接地部７の輪郭が鮮明に写し出される。ま
た、外光の遮蔽効果が大となり、接地部７の照明が外光
に負けず、該接地部７の画像が暗くならず、はっきり写
し出される。Therefore, the milk mixed water film 5 is white while the tire 6 is black, so that the outline of the glass plate grounding portion 7 is clearly shown as shown in FIG. In addition, the effect of blocking external light is increased, and the illumination of the grounding portion 7 is not defeated by the external light, so that the image of the grounding portion 7 is not darkened and is clearly displayed.
【００１４】なお、本発明は上述の実施例に限定され
ず、本発明の要旨を逸脱しない範囲で設計変更自由であ
り、例えば、ガラス板３としては、透明な強化ガラスを
使用するのが好ましく、厚さ寸法としても、タイヤ走行
に十分耐えると共に、下方（裏面側）からのビデオカメ
ラ４による表て面側のタイヤ６のガラス板接地部７の撮
影が十分可能なように設定する。It should be noted that the present invention is not limited to the above-described embodiment, and the design can be freely changed without departing from the gist of the present invention. For example, as the glass plate 3, it is preferable to use a transparent tempered glass. The thickness of the tire 6 is set such that it can sufficiently withstand running of the tire and that the video camera 4 can sufficiently image the glass plate grounding portion 7 of the tire 6 on the front side from below (back side).
【００１５】また、牛乳混合水膜５の牛乳の濃度として
は、20〜40％の範囲で自由に変更することができる。こ
れは、20〜40％の範囲より少なければ、牛乳混合水膜５
の白色の色が薄く、タイヤの黒色に対して、この牛乳混
合水膜の白色がコントラストになりにくく、また、逆
に、20〜40％の範囲より多ければ、牛乳混合水膜５の白
色の色が濃すぎて、画像が分りにくくなるからである。The concentration of milk in the milk mixed water film 5 can be freely changed within a range of 20 to 40%. This means that if less than the range of 20-40%, the milk mixed water film 5
The white color of the milk-mixed water film 5 is hardly in contrast to the black color of the tire, and the whiteness of the milk-mixed water film 5 is larger than the range of 20 to 40%. This is because the color is too dark and the image is difficult to understand.
【００１６】さらに、牛乳混合水膜５の厚さ寸法Ｔとし
ても、４〜６mmの範囲で自由に変更することができる。
これは、この４〜６mmの範囲より小さければ、厚さ寸法
Ｔが小さすぎて外光の遮蔽効果が大となる効果やタイヤ
６の黒色に対して牛乳混合水膜５の白色がコントラスト
になる効果等を得ることができず、また、逆に、この４
〜６mmの範囲より大きければ、走行中に牛乳混合水膜５
の牛乳混合水がはね上がって飛び散る等の問題が生じる
からである。Further, the thickness T of the milk-mixed water film 5 can be freely changed within a range of 4 to 6 mm.
This is because if the thickness is smaller than the range of 4 to 6 mm, the thickness T is too small to increase the external light shielding effect, or the white color of the milk mixed water film 5 is contrasted with the black color of the tire 6. No effect can be obtained, and conversely, this 4
If it is larger than the range of ~ 6mm, the milk mixed water film 5
This is because there is a problem that the mixed water of milk jumps up and scatters.
【００１７】[0017]
【発明の効果】本発明は上述の如く構成されているの
で、次に記載する効果を奏する。Since the present invention is configured as described above, the following effects can be obtained.
【００１８】 外光の遮蔽効果が大となって、ガラス
板接地部７の照明が外光に負けず、得られる画像が明る
くなって観察しやすい。The effect of shielding external light is great, and the illumination of the glass plate grounding section 7 is not defeated by external light, and the obtained image is bright and easy to observe.
【００１９】 タイヤ６の黒色に対して牛乳混合水膜
５の白色がコントラストになり、ガラス板接地部７の輪
郭が鮮明となり、該接地部７の形状等を正確に把握する
ことができる。The white color of the milk-mixed water film 5 is contrasted with the black color of the tire 6, the contour of the glass plate grounding portion 7 is clear, and the shape and the like of the grounding portion 7 can be accurately grasped.
【００２０】 牛乳はコロイド均質であるので、ペイ
ントの様に色素が沈降せず、長期にわたって使用するこ
とができる。Since milk is colloid-homogeneous, pigments do not settle like paint and can be used for a long time.
【００２１】 牛乳は天然有機物であるので、牛乳混
合水膜５を何ら特別の処理をすることなく簡単に廃棄す
ることができ、さらに、牛乳は安価にかつ簡単にしかも
大量に手に入り、コスト高とならない。Since milk is a natural organic substance, the milk-mixed water film 5 can be easily disposed of without any special treatment. Furthermore, milk can be obtained inexpensively, easily, and in large quantities, and the cost can be reduced. Not high.
【図１】本発明に係るタイヤ走行接地状態撮影方法に使
用する撮影装置の簡略図である。FIG. 1 is a simplified diagram of a photographing device used in a method for photographing a tire running contact state according to the present invention.
【図２】ガラス板接地部を示す簡略図である。FIG. 2 is a simplified diagram showing a glass plate grounding unit.
３ ガラス板 ５ 牛乳混合水膜 ６ タイヤ ７ ガラス板接地部 3 Glass plate 5 Milk mixed water film 6 Tire 7 Glass plate grounding part
Claims (2)
ガラス板接地部７を、該ガラス板３の下方から撮影する
タイヤ走行接地状態撮影方法であって、上記ガラス板３
上に、牛乳の濃度が20〜40％である牛乳混合水膜５を形
成し、該牛乳混合水膜５にて被膜されているガラス板３
上を上記タイヤ６を走行させることを特徴とするタイヤ
走行接地状態撮影方法。1. A method for photographing a ground contact state of a tire 6 running on a glass plate 3 from below the glass plate 3.
A milk mixed water film 5 having a milk concentration of 20 to 40% is formed thereon, and a glass plate 3 covered with the milk mixed water film 5 is formed.
A method for photographing a tire traveling contact state, comprising running the tire 6 above.
する請求項１記載のタイヤ走行接地状態撮影方法。2. The method according to claim 1, wherein the thickness of the milk mixed water film 5 is 4 to 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5297371A JP2754323B2 (en) | 1993-11-02 | 1993-11-02 | How to shoot tire running contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5297371A JP2754323B2 (en) | 1993-11-02 | 1993-11-02 | How to shoot tire running contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07128196A JPH07128196A (en) | 1995-05-19 |
| JP2754323B2 true JP2754323B2 (en) | 1998-05-20 |
Family
ID=17845628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5297371A Expired - Fee Related JP2754323B2 (en) | 1993-11-02 | 1993-11-02 | How to shoot tire running contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2754323B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003014428A (en) * | 2001-07-02 | 2003-01-15 | Bridgestone Corp | Display method of tire contact shape and display device of tire contact shape |
| KR100441866B1 (en) * | 2002-05-27 | 2004-07-27 | 금호타이어 주식회사 | Structure for Measuring Hydroplaning of Tire |
| JP4150264B2 (en) * | 2003-01-23 | 2008-09-17 | 東洋ゴム工業株式会社 | Tire testing equipment |
| JP2024076637A (en) | 2022-11-25 | 2024-06-06 | 住友ゴム工業株式会社 | Tire water removal evaluation method and tire |
-
1993
- 1993-11-02 JP JP5297371A patent/JP2754323B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07128196A (en) | 1995-05-19 |
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| R250 | Receipt of annual fees |
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