JP2756801B2 - Tire filled with liquid - Google Patents
Tire filled with liquidInfo
- Publication number
- JP2756801B2 JP2756801B2 JP63293345A JP29334588A JP2756801B2 JP 2756801 B2 JP2756801 B2 JP 2756801B2 JP 63293345 A JP63293345 A JP 63293345A JP 29334588 A JP29334588 A JP 29334588A JP 2756801 B2 JP2756801 B2 JP 2756801B2
- Authority
- JP
- Japan
- Prior art keywords
- tire
- liquid
- filled
- weight
- range
- 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
Classifications
-
- 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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/004—Inflatable pneumatic tyres or inner tubes filled at least partially with liquid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は自動車その他の車輌用のチューブ又はチュー
ブレスタイヤ等に係り、特に操縦性および安定性等に優
れた前記タイヤの構造に関する。Description: TECHNICAL FIELD The present invention relates to a tube or tubeless tire for automobiles and other vehicles, and more particularly to a structure of the tire having excellent maneuverability and stability.
（将来の技術） 自動車等の車両のタイヤには路面からの衝撃を吸収し
円滑な走行を図るため、タイヤの中腔部に収容したチュ
ーブもしくは近年のチューブレスタイヤのように中腔部
自体に加圧空気を充填した構造のものが用いられて来
た。(Future technology) In order to absorb the impact from the road surface and achieve smooth running, the tires of vehicles such as automobiles have a tube attached to the tire's inner cavity or a hollow tube itself like a recent tubeless tire. Structures filled with compressed air have been used.
このような加圧空気は前記のように走行時の衝撃を吸
収する機能を有するが、その他操縦性および安定性等に
も当然何等かの影響を及ぼすものと考えられる。しかし
現行の空気式タイヤでは充填する空気圧の加減等によっ
てこれらの機能を調節することが行われているのみで、
タイヤに充填する流体自体についての改善は全く試みら
れていない。As described above, such pressurized air has a function of absorbing a shock at the time of traveling, but it is also considered that it naturally has some influence on maneuverability and stability. However, in the current pneumatic tires, these functions are only adjusted by adjusting the filling air pressure, etc.
No attempt has been made to improve the fluid itself filling the tire.
本発明者等はこのようなタイヤに充填する流体に関し
て種々実験および研究を重ねた結果、従来のタイヤの中
腔部に充填されていた加圧空気に対してこれよりも比重
の大きな液体、たとえば水等を所定の範囲でさらに充填
することにより、走行中の振動衝撃が著しく緩和され、
かつ直進性および特に制動時の停止距離の短縮等に著し
い効果がみられることを発見した。さらに驚くべきこと
には、液体の充填による荷重の増大で当然燃費の増加が
予期されるにもかかわらず、実験走行の範囲内ではむし
ろ従来のタイヤの場合よりも燃費が減少することが認め
られた。The present inventors have conducted various experiments and studies on the fluid to be filled into such a tire, and as a result, a liquid having a specific gravity larger than that of the pressurized air filled in the middle cavity of the conventional tire, for example, By further filling with water and the like in a predetermined range, vibration and impact during traveling are remarkably reduced,
In addition, it has been found that a remarkable effect is seen in straightness and particularly in shortening the stopping distance during braking. Even more surprisingly, it is observed that fuel consumption is reduced within the range of the test run rather than with conventional tires, despite the fact that fuel consumption is expected to be increased by increasing the load due to liquid filling. Was.
このような予期しない効果は基本的には比重の大きな
液体の充填によって高速回転体としてのタイヤの質量が
増大することによる慣性の増加、いわゆるフライホィー
ル効果に基づくものと考えられる。It is considered that such an unexpected effect is basically based on an increase in inertia due to an increase in the mass of a tire as a high-speed rotating body due to filling of a liquid having a large specific gravity, that is, a so-called flywheel effect.
また従来タイヤを取付けるブッシュ等に液体を封入し
て走行性を改善することは試みられているが、本発明の
ようにタイヤ自体に液体を充填する場合においては、そ
の回転時に比重の大きな液体が遠心力の作用でタイヤの
外径側に局在することになるため、タイヤのトレッド面
がより大きな面積で路面に対して確実に押付けられる。Conventionally, attempts have been made to improve the running performance by enclosing a liquid in a bush or the like on which the tire is mounted. Since the tire is localized on the outer diameter side of the tire by the action of the centrifugal force, the tread surface of the tire is reliably pressed against the road surface with a larger area.
このような効果をもたらす空気よりも比重の大きな液
体のワイヤへの充填量は液体の物性およびこれに混入さ
れる添加物の量等によっても異なるが、一般的には常圧
下の条件でタイヤに充填された空気量に換算してその容
積の約5/100〜95/100％の範囲でかかる効果が有意に認
められる。The amount of liquid filled into the wire with a specific gravity greater than that of air that produces such effects depends on the physical properties of the liquid and the amount of additives mixed therein. Such an effect is significantly recognized in the range of about 5/100 to 95/100% of the volume in terms of the amount of air charged.
（課題を解決するための手段） したがって、本発明の特色はチューブ又はチューブレ
スタイヤの中腔部に対して、タイヤに充填された常圧状
態で空気の容積に対して1:9〜6:4の範囲の液体および前
記液体100重量％に対してエチレングリコール、グリセ
リン等の凍結防止剤５〜30重量％を充填したことを特徴
とする流体を充填したタイヤにある。(Means for Solving the Problems) Therefore, a feature of the present invention is that the tube or tubeless tire has a cavity of 1: 9 to 6: 4 with respect to the volume of air at normal pressure filled in the tire. The fluid-filled tire is characterized by being filled with a liquid in the range described above and 100% by weight of the liquid and 5 to 30% by weight of an antifreezing agent such as ethylene glycol and glycerin.
尚、前記液体の充填量が５容量％以下では目的とする
効果が実質的に得られない。一方、95容量％以上では加
圧空気を充填することにより得られる本来の緩衝効果が
得られ難い。If the filling amount of the liquid is 5% by volume or less, the intended effect cannot be substantially obtained. On the other hand, at 95% by volume or more, it is difficult to obtain the original buffering effect obtained by filling with pressurized air.
尚、本発明におけるようにタイヤの充填空気の相当部
分を液体たとえば水によって置換えた場合、厳冬期等に
凍結のおそれがあり、充填される液体に対して予め凍結
防止剤を混入しておくことが望ましい。When a substantial portion of the air filled in the tire is replaced with a liquid, such as water, as in the present invention, there is a risk of freezing during severe winter or the like. Is desirable.
凍結防止剤としては周知のエチレングリコール、グリ
セリン等を用いることができ、その添加量は液体に対し
て５〜30重量％の範囲である。As the antifreezing agent, well-known ethylene glycol, glycerin and the like can be used, and the addition amount thereof is in the range of 5 to 30% by weight based on the liquid.
またこのような充填流体に対してAl、Si、Ca、Ti、M
n、Fe、Co、Ni、Cu、Zn、Pb、Ba、MgおよびMoなどの金
属又はこれら金属の酸化物の超微粒子からなる群より選
ばれた１種又は２種以上の添加物を１〜20重量％の範囲
で添加して用いると、制動時の停止距離の短縮効果がさ
らに改善される。In addition, Al, Si, Ca, Ti, M
n, Fe, Co, Ni, Cu, Zn, Pb, Ba, Mg and Mo and the like, or one or more additives selected from the group consisting of ultrafine particles of oxides of these metals, When used in the range of 20% by weight, the effect of shortening the stopping distance during braking is further improved.
これはこれら比重の大きな添加物が制動時に逆方向へ
移動しようとする性向によるものと考えられるが、この
場合液体として水よりも比重の小さいエチレングリコー
ル、グリセリンもしくは流動パラフィンを用いると、か
ゝる効果が一層顕著になる。This is thought to be due to the tendency of these high-gravity additives to move in the opposite direction during braking. In this case, if ethylene glycol, glycerin, or liquid paraffin, which has a lower specific gravity than water, is used as the liquid. The effect becomes more pronounced.
さらに従来の加圧空気式のタイヤではパンクの際にタ
イヤ内の圧力が急激に低下するため、高速走行時等に不
測の事故につながるおそれがあるが、本発明においては
加圧空気の相当部分が液体で置き換えられているため、
このような危険が著しく減少する。Further, in the conventional pressurized air type tire, the pressure in the tire rapidly decreases during puncturing, which may lead to an unexpected accident when driving at high speed, etc. Has been replaced with a liquid,
Such danger is significantly reduced.
（実施例） 以下本発明を実際の実験による結果に基づく実施例に
よってさらに説明する。(Examples) Hereinafter, the present invention will be further described with reference to examples based on the results of actual experiments.
（実施例１） セドリック（N230）乗用車４輌（A,B,C,D）をよく保
守整備した後、常法に従ってその安全性を確かめるた
め、停止距離（空走距離＋制動距離）を従来の空気タイ
ヤを用いた場合と本発明による液体充填タイヤを用いた
場合との間で比較し、下表１の結果を得た（実験条件、
天候：晴、21℃、45RH％、試験道路走行）。(Example 1) After well-maintaining and maintaining four Cedric (N230) passenger cars (A, B, C, D), the stopping distance (idling distance + braking distance) is conventionally set to confirm the safety according to the ordinary law. The results obtained in Table 1 below were obtained by comparison between the case using the pneumatic tire of Example 1 and the case using the liquid-filled tire according to the present invention (experimental conditions,
Weather: fine, 21 ℃, 45RH%, test road driving).
液体としては水を用い、タイヤに充填する空気圧を常
圧状態として換算した場合の表中に示す各容積比でタイ
ヤの封入ダンパを介して注入した。Water was used as the liquid, and was injected through the tire sealing damper at each volume ratio shown in the table when the air pressure to be charged into the tire was converted to a normal pressure state.
流体：空気比は本実施例の外9:1、8:2、7:3、6:4等の
比率においても本実施例と程同様の結果が得られた。The same results as in the present example were obtained with fluid: air ratios of 9: 1, 8: 2, 7: 3, 6: 4, etc. other than the present example.
表１からも明らかなように本発明に係るタイヤを使用
した停止距離は各走行速度について従来タイヤに比較し
て約10％短縮されており、表に示す液体：空気比の範囲
内ではその比率が増加するにつれてこの短縮効果が増大
している。As is clear from Table 1, the stopping distance using the tire according to the present invention is reduced by about 10% at each running speed as compared with the conventional tire, and the ratio is within the range of the liquid: air ratio shown in the table. The effect of this shortening increases with the increase of.
また本発明によるタイヤを用いた場合には走行中の振
動防止効果が著しく向上すると共に、直進性が改善され
操縦性に向上が認められた。In addition, when the tire according to the present invention was used, the effect of preventing vibration during running was remarkably improved, and the straightness was improved and the steering was improved.
このような効果は発進後加速するにつれて次第に増大
した。These effects gradually increased as the vehicle accelerated after the start.
（実施例２） 実施例１と同様な乗用車４輌を用い、実施例１と同様
にして従来タイヤおよび本発明に係るタイヤを用いた場
合について２ケ月間にわたって走行試験を行い、平行走
行キロ数/lを求めて下表２および３のような結果を得
た。(Example 2) A running test was performed for two months using four passenger cars similar to those in Example 1 and using the conventional tire and the tire according to the present invention in the same manner as in Example 1, and the number of parallel traveling kilometers was measured. The results shown in Tables 2 and 3 below were obtained by calculating / l.
表２および表２の比較から明かなように、本発明によ
るタイヤを用いた場合、従来に比較して平行走行距離が
増大しており、実験の範囲内では燃料節減率は18.29％
にも達した。As is clear from the comparison of Table 2 and Table 2, when the tire according to the present invention was used, the parallel running distance was increased as compared with the conventional case, and the fuel saving rate was 18.29% within the range of the experiment.
Also reached.
（発明の効果） 以上のように本発明に係る液体充填タイヤによれば従
来のタイヤに比較して走行時の安定性、操縦性ならびに
制動効果等が著しく向上する。 (Effects of the Invention) As described above, according to the liquid-filled tire according to the present invention, stability, maneuverability, braking effect, and the like during traveling are significantly improved as compared with the conventional tire.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−127302（ＪＰ，Ａ) 実開 昭56−77408（ＪＰ，Ｕ) 実公 昭31−12205（ＪＰ，Ｙ１) ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-50-127302 (JP, A) JP-A-56-77408 (JP, U) JP-A-31-12205 (JP, Y1)
Claims (4)
に対して、タイヤに常圧状態で充填された空気の容積に
対して1:9〜6:4の範囲の液体および前記液体100重量％
に対してエチレングリコール、グリセリン等の凍結防止
剤５〜30重量％を充填したことを特徴とする流体を充填
したタイヤ。A liquid in the range of 1: 9 to 6: 4 and a weight of 100% by weight of the liquid, based on the volume of air filled in the tire at normal pressure, with respect to the inner cavity of the tube or tubeless tire.
A tire filled with a fluid, which is filled with 5 to 30% by weight of an antifreezing agent such as ethylene glycol and glycerin.
イヤ。2. The tire according to claim 1, wherein said liquid is water.
ンおよび流動パラフィンの中から選ばれた１種又は２種
以上の液体である前記請求項１記載のタイヤ。3. The tire according to claim 1, wherein the liquid is one or more liquids selected from ethylene glycol, glycerin and liquid paraffin.
i、Ca、Ti、Mn、Fe、Co、Ni、Cu、Zn、Pb、Ba、Mgおよ
びMoなどの金属又はこれら金属の酸化物の超微粒子から
なる群より選ばれた１種又は２種以上の添加物を１〜20
重量％の範囲で添加した組成を有する前記請求項１記載
のタイヤ。4. The method according to claim 1, wherein said liquid is Al, S
One or more selected from the group consisting of metals such as i, Ca, Ti, Mn, Fe, Co, Ni, Cu, Zn, Pb, Ba, Mg and Mo or ultrafine particles of oxides of these metals Additives 1 to 20
2. The tire according to claim 1, having a composition added in a range of weight%.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63293345A JP2756801B2 (en) | 1988-11-19 | 1988-11-19 | Tire filled with liquid |
| EP19890710078 EP0370944B1 (en) | 1988-11-19 | 1989-11-17 | Fluid-charged vehicle tire |
| AT8989710078T ATE104607T1 (en) | 1988-11-19 | 1989-11-17 | AIR TIRES FILLED WITH LIQUID. |
| CA 2003258 CA2003258C (en) | 1988-11-19 | 1989-11-17 | Fluid-charged vehicle tire |
| DE1989614792 DE68914792T2 (en) | 1988-11-19 | 1989-11-17 | Pneumatic tire filled with liquid. |
| AU45305/89A AU625578B2 (en) | 1988-11-19 | 1989-11-17 | Fluid-charged vehicle tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63293345A JP2756801B2 (en) | 1988-11-19 | 1988-11-19 | Tire filled with liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02141303A JPH02141303A (en) | 1990-05-30 |
| JP2756801B2 true JP2756801B2 (en) | 1998-05-25 |
Family
ID=17793599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63293345A Expired - Fee Related JP2756801B2 (en) | 1988-11-19 | 1988-11-19 | Tire filled with liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2756801B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5753369B2 (en) * | 2010-11-16 | 2015-07-22 | 住友ゴム工業株式会社 | Pneumatic tire and rim assembly and motorcycle equipped with the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50127302A (en) * | 1974-03-25 | 1975-10-07 |
-
1988
- 1988-11-19 JP JP63293345A patent/JP2756801B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02141303A (en) | 1990-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |