JPH02197403A - Tire for vehicle - Google Patents
Tire for vehicleInfo
- Publication number
- JPH02197403A JPH02197403A JP1015871A JP1587189A JPH02197403A JP H02197403 A JPH02197403 A JP H02197403A JP 1015871 A JP1015871 A JP 1015871A JP 1587189 A JP1587189 A JP 1587189A JP H02197403 A JPH02197403 A JP H02197403A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- force
- road surface
- tread
- low
- 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
Links
- 230000007423 decrease Effects 0.000 abstract description 7
- 239000011324 bead Substances 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、空気圧不足等によってタイヤが変形してもリ
ムから外れないようにした車両用タイヤに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle tire that does not come off the rim even if the tire is deformed due to insufficient air pressure or the like.
（従来の技術）
自動車等の車両用タイヤにおいて、バーストによるタイ
ヤの外れ以外に、過度のタイヤ変形によって、タイヤが
ホイールのリム部から脱落することがある。(Prior Art) In tires for vehicles such as automobiles, in addition to the tire coming off due to burst, the tire may fall off the rim of the wheel due to excessive tire deformation.
例えば、第３図に示す自動車等の車両用のタイヤｌにお
いて、自動車が急旋回した場合にタイヤｌには過度の変
形が生ずる。For example, in a tire l for a vehicle such as a car shown in FIG. 3, excessive deformation occurs in the tire l when the car makes a sharp turn.
このタイヤ１の変形は次の理由による。すなわち、自動
車の急旋回による遠心力は、タイヤ１のトレッド２と路
面６との摩擦力で受けるので、タイヤｌには力、及びモ
ーメントが生ずる。この力、及びモーメントの中で、主
に、路面６を含む平面上で自動車の進行方向に対して直
角方向の分力によって、タイヤｌには、第４図に示され
るような力Ｆが働き変形を生じる。This deformation of the tire 1 is due to the following reason. That is, since the centrifugal force caused by a sharp turn of the automobile is received by the frictional force between the tread 2 of the tire 1 and the road surface 6, force and moment are generated in the tire 1. Among these forces and moments, a force F as shown in FIG. 4 acts on the tire l mainly due to a component force in a direction perpendicular to the direction of travel of the vehicle on a plane including the road surface 6. Causes deformation.
図において紙面に向って左側が旋回の外側である。力Ｆ
はタイヤｌと路面６の摩擦力によって生じ、力Ｆが大き
ければこの変形も大きくなり、タイヤ１のサイ・ドウオ
ールのトレッド２に近接した部位は路面６に接地し、さ
らに変形が進んだ場合、タイヤ１のビード３は、リム４
のフランジ５から脱落することがある。In the figure, the left side when facing the page is the outside of the turn. Force F
is caused by the frictional force between the tire 1 and the road surface 6, and if the force F is large, this deformation also becomes large, and the portion of the side wall of the tire 1 close to the tread 2 comes into contact with the road surface 6, and if the deformation progresses further, The bead 3 of the tire 1 is the rim 4
may fall off from the flange 5.
タイヤ空気圧が規定より低い場合にタイヤは変形しやす
く、タイヤ脱落も発生しやすい。When the tire air pressure is lower than the specified value, the tire is easily deformed and the tire is likely to fall off.
タイヤ脱落が発生すると操縦及び走行は不能となり、タ
イヤ及びホイールが損傷する。また、チューブレスタイ
ヤの場合、エア洩れが発生する。If a tire falls off, it becomes impossible to maneuver or drive, and the tire and wheel are damaged. Also, in the case of tubeless tires, air leakage occurs.
このようなタイヤ脱落を防止するために従来は、第５図
に示されるように、リム４のフランジ５の周上にタイヤ
脱落防止山７を設けるようにしていた。In order to prevent such a tire from falling off, conventionally, as shown in FIG. 5, a tire falling-off prevention mountain 7 has been provided on the circumference of the flange 5 of the rim 4.
これ以外に、タイヤの損傷を減少させる技術として、特
開昭６３−９３６０６号公報にサイドウオールに発生し
た切れ目やスクラッチの拡大速度を最小限におさえるサ
イドウオールの形状に関するものが開示されている。In addition to this, as a technique for reducing tire damage, Japanese Patent Application Laid-Open No. 63-93606 discloses a sidewall shape that minimizes the rate of expansion of cuts and scratches generated in the sidewall.
（発明が解決しようとする課題）
上記従来例において、第５図に示されるものは、タイヤ
脱落防止山７を設け、ビード３がフランジ５からはずれ
にくいように抵抗を与久タイヤｌがリム４から脱落しに
くいようにしたものであるが次のような問題がある。す
なわち、タイヤｌの変形が少ない場合はよいがその変形
が大きい場合は、充分な効果は得られない、特に、タイ
ヤｌの空気圧が規定よりも低い場合、タイヤ１は変形し
やすくなるので、その効果はあまり期待できないという
問題がある。(Problems to be Solved by the Invention) In the conventional example described above, the one shown in FIG. Although it is designed to prevent it from falling off, it has the following problems. In other words, it is good if the deformation of the tire 1 is small, but if the deformation is large, sufficient effects cannot be obtained.In particular, if the air pressure of the tire 1 is lower than the specified value, the tire 1 becomes easily deformed. The problem is that the effects cannot be expected to be very high.
また、特開昭６３−９３６０６号公報に開示されている
ものは、サイドウオールの切れ目やスクラッチの発生に
よるタイヤの損傷を防止するものであり、タイヤ変形に
起因する。タイヤの脱落の防止には、適用できないので
やはり同様の問題がある。Furthermore, the method disclosed in Japanese Patent Application Laid-Open No. 63-93606 is intended to prevent damage to tires due to cuts and scratches in the sidewall, which are caused by tire deformation. Since this method cannot be applied to prevent tires from falling off, the same problem still exists.
本発明は、以上のことに鑑みて、自動車等の急旋回時に
、タイヤをスリップさせて力Ｆを小さくし、これにより
タイヤの過度の変形を少なくしてタイヤの脱落を防止し
たタイヤを提供することを目的とするものである。In view of the above, the present invention provides a tire that reduces the force F by causing the tire to slip when an automobile or the like makes a sharp turn, thereby reducing excessive deformation of the tire and preventing the tire from falling off. The purpose is to
（課題を解決するため・の手段）
上記の課題を解決するために本発明は、サイドウオール
表面でトレッド２に近接した部位に、帯状の低摩擦部材
８を貼付、あるいは、タイヤ１の部材と一体成形したこ
とを特徴とする。(Means for Solving the Problems) In order to solve the above problems, the present invention attaches a band-shaped low friction member 8 to a portion of the sidewall surface close to the tread 2, or attaches it to a part of the tire 1. It is characterized by being integrally molded.
（作 用）
このように構成することにより、自動車等が急旋回等を
した場合、タイヤ１は路面６からの力Ｆによって変形し
、この変形が大きいと、タイヤ１は、そのサイドウオー
ルの一部及び低摩擦部材８を路面６に接地する。(Function) With this configuration, when a car or the like makes a sharp turn, the tire 1 is deformed by the force F from the road surface 6, and if this deformation is large, the tire 1 deforms due to the force F from the road surface 6. and the low friction member 8 are grounded on the road surface 6.
そして、低摩擦部材８の接地により、タイヤ１と路面６
との摩擦力は減少し、タイヤ１は横すべりを発生する。Then, due to the contact of the low friction member 8 with the ground, the tire 1 and the road surface 6
The frictional force between the tire 1 and the tire 1 decreases, causing the tire 1 to skid.
このとき、タイヤｌと路面６との摩擦力が減少するため
、この摩擦力によって生じる、タイ・ヤ１を変形させる
力Ｆも減少し、タイヤ１の変形は、それ以上進行しなく
なる。At this time, since the frictional force between the tire 1 and the road surface 6 decreases, the force F that causes the tire tire 1 to deform due to this frictional force also decreases, and the deformation of the tire 1 no longer progresses.
（実施例） 以下、本発明の一実施例について詳細に説明する。(Example) Hereinafter, one embodiment of the present invention will be described in detail.
第１図において、ｌは自動車等の車両用タイヤであり、
２は、タイヤ１のトレッド、３はビードである。４はタ
イヤｌを装着するホイールのリムであり、５はリム４の
タイヤｌ取付用のフランジである。In FIG. 1, l is a tire for a vehicle such as a car,
2 is a tread of the tire 1, and 3 is a bead. 4 is the rim of the wheel on which the tire l is mounted, and 5 is a flange of the rim 4 for mounting the tire l.
タイヤ１の左右両側のトレッド２とビード３との間（以
下サイドウオールという）表面でトレッド２に近接した
部位に、サイドウオール及びトレッド２のいずれの表面
よりも摩擦係数の小さい、帯状の低摩擦部材８をタイヤ
１の側面周方向に沿って貼付する。低摩擦部材８の材質
は、タイヤ１のサイドウオールのクツションを損なわな
い弾性材料とする。低摩擦部材８は貼付する代りに、タ
イヤ１成形時に、タイヤ１の部材に一体成形してもよい
、低摩擦部材８の貼付、あるいは一体成形する位置は、
規定の走行状態においては、路面６に接地せず、タイヤ
空気圧不足、荷重超過、摩擦の大きな路面での無理な急
旋回、あるいは、それらの状況が重なった場合等、タイ
ヤｌが変形しやすい状態でタイヤ変形が起った時、その
初期の変形段隋で路面６に接地する位置とする。A belt-shaped low friction material having a lower coefficient of friction than the surfaces of either the sidewall or the tread 2 is located near the tread 2 on the surface between the tread 2 and the bead 3 on both left and right sides of the tire 1 (hereinafter referred to as sidewall). The member 8 is attached along the circumferential direction of the side surface of the tire 1. The material of the low friction member 8 is an elastic material that does not impair the cushioning of the sidewall of the tire 1. Instead of being attached, the low-friction member 8 may be integrally formed with the tire 1 during molding of the tire 1.The position where the low-friction member 8 is attached or integrally formed is as follows:
Under the specified driving conditions, the tires are prone to deformation due to failure to touch the road surface 6, insufficient tire pressure, excessive load, forced sharp turns on a road surface with high friction, or a combination of these conditions. When tire deformation occurs, the position where the tire contacts the road surface 6 is at the initial stage of deformation.
以上のように構成した本実施例の作用について次に説明
する。The operation of this embodiment configured as above will be explained next.
規定の走行状態において、例えば荷物や乗員の増加によ
るタイヤ荷重の増加や、旋回時におけるタイヤ変形では
、トレッド２及びトレッド２とサイドウオールとの境い
わゆるショルダー部のみを接地しており、低摩擦部材８
は接地しない。Under specified driving conditions, for example, when the tire load increases due to an increase in cargo or passengers, or when the tire deforms when turning, only the tread 2 and the so-called shoulder area between the tread 2 and the sidewall are in contact with the ground. 8
is not grounded.
タイヤ１が、例えば、空気圧不足、荷重超過、あるいは
、それらの状況が重なった場合等、タイヤ１が変形しや
すい状態で無理な急旋回を行ったとき、タイヤｌは、遠
心力及びトレッド２と路面６の摩擦力により生ずる力Ｆ
により第２図に示されるように変形する。ここで、力Ｆ
の大きさは、タイヤ１の接地面と路面６との摩擦力の大
きさに比例する。When the tire 1 makes an unreasonable sharp turn in a state where the tire 1 is easily deformed, for example, due to insufficient air pressure, excessive load, or a combination of these conditions, the tire 1 is affected by the centrifugal force and the tread 2. Force F generated by the frictional force of the road surface 6
It is deformed as shown in FIG. Here, the force F
The magnitude of is proportional to the magnitude of the frictional force between the ground contact surface of the tire 1 and the road surface 6.
そこで上記変形が大きくなって低摩擦部材８が路面６に
接地すると、タイヤ１の接地面と路面６の摩擦力は低下
し、タイヤ１は横すべりを発生する。このようにタイヤ
１の接地面と路面６との摩擦力が低下することにより、
タイヤ１を変形させる力Ｆも低下し、タイヤｌの変形は
これ以上進行しな（なり、リム４のフランジ５からタイ
ヤ１のビード３は脱落しない。Therefore, when the deformation becomes large and the low friction member 8 comes into contact with the road surface 6, the frictional force between the ground contact surface of the tire 1 and the road surface 6 decreases, causing the tire 1 to skid. As the frictional force between the contact surface of the tire 1 and the road surface 6 decreases in this way,
The force F that deforms the tire 1 also decreases, and the deformation of the tire l does not proceed any further (and the bead 3 of the tire 1 does not fall off from the flange 5 of the rim 4).
（発明の効果）
以上詳述した通り本発明によれば、タイヤのサイドウオ
ール表面のトレッドに近接した部位に、該タイヤの側面
周方向に沿って帯状の低摩擦部材を設けてタイヤ変形に
よって低摩擦部材が接地したときの力Ｆを小さくしたの
で、タイヤの過度の変形を防止することができる。(Effects of the Invention) As detailed above, according to the present invention, a band-shaped low friction member is provided along the circumferential direction of the side surface of the tire at a portion of the sidewall surface of the tire close to the tread. Since the force F when the friction member contacts the ground is reduced, excessive deformation of the tire can be prevented.
したがって、もし、規定タイヤ空気圧不足等で急旋回走
行してもタイヤの脱落は、防止される。Therefore, even if the vehicle makes a sharp turn due to lack of specified tire air pressure, the tire will be prevented from falling off.
また、始業点検時に低摩擦部材の接地による摩耗状態を
見ることによって、タイヤの空気圧不足、荷重超過等に
よるタイヤの過度の変形を視覚で確認することができる
。Furthermore, by checking the wear condition of the low-friction member due to contact with the ground during the initial inspection, excessive deformation of the tire due to insufficient tire air pressure, excessive load, etc. can be visually confirmed.
さらに、低摩擦部材の接地による車両の横すべりで、走
行中のタイヤの異常変形を体感でき、タイヤ空気圧不足
、荷重超過等を知ることができる。Furthermore, when the vehicle skids due to the low-friction member touching the ground, the user can experience abnormal deformation of the tires while driving, and can know if the tires are under-inflated or overloaded.
また、低摩擦部材の色をタイヤと別色とすることにより
、見栄＾がよくなり意匠上すぐれた効果を有する。Furthermore, by making the low-friction member a different color from the tire, it looks better and has an excellent design effect.
第１図は本発明の一実施例の縦断面図、第２図は第１図
の実施例において、タイヤが変形した状態を示す縦断面
図、第３図は従来のタイヤとリムの縦断面図、第４図は
第３図のタイヤが変形した状態を示す縦断面図、第５図
は従来のタイヤ脱落防止山を設けたリムにタイヤを装着
した状態を示す縦断面図である。
１ ・・・ タイヤ
４ ・・・ リム
８ ・・・ 低摩擦部材
第１因
４・・・リム
８・・低！Ｉｌ擦部々
第２図
ム
特許出願人 鈴木自動車工業株式会社
（ばか２名）
第３
図
ム
第４
図
第５
図Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the embodiment of Fig. 1, showing a deformed state of the tire, and Fig. 3 is a longitudinal sectional view of a conventional tire and rim. 4 is a longitudinal sectional view showing the tire shown in FIG. 3 in a deformed state, and FIG. 5 is a longitudinal sectional view showing a state in which the tire is mounted on a rim provided with conventional tire drop-off prevention ridges. 1... Tire 4... Rim 8... Low friction member 1st factor 4... Rim 8... Low! Figure 2 Patent applicant Suzuki Motor Co., Ltd. (2 idiots) Figure 3 Figure 4 Figure 5
Claims (1)
低摩擦部材を設けたことを特徴とする車両用タイヤ。(1) A vehicle tire characterized by having a low-friction member provided on the sidewall surface in a portion close to the tread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015871A JPH02197403A (en) | 1989-01-25 | 1989-01-25 | Tire for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015871A JPH02197403A (en) | 1989-01-25 | 1989-01-25 | Tire for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02197403A true JPH02197403A (en) | 1990-08-06 |
Family
ID=11900864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1015871A Pending JPH02197403A (en) | 1989-01-25 | 1989-01-25 | Tire for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02197403A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5506783A (en) * | 1993-06-29 | 1996-04-09 | Hitachi, Ltd. | Method and apparatusa for determining supply sequence of products ot be processed to production line |
| WO2005044545A1 (en) * | 2003-10-27 | 2005-05-19 | Treadtech, Llc | Apparatus and method for reducing the likelihood of vehicle rollover |
| DE10357787B4 (en) * | 2003-07-10 | 2010-10-14 | Hyundai Motor Company | Rollover protection system for a vehicle |
-
1989
- 1989-01-25 JP JP1015871A patent/JPH02197403A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5506783A (en) * | 1993-06-29 | 1996-04-09 | Hitachi, Ltd. | Method and apparatusa for determining supply sequence of products ot be processed to production line |
| DE10357787B4 (en) * | 2003-07-10 | 2010-10-14 | Hyundai Motor Company | Rollover protection system for a vehicle |
| WO2005044545A1 (en) * | 2003-10-27 | 2005-05-19 | Treadtech, Llc | Apparatus and method for reducing the likelihood of vehicle rollover |
| US7222651B2 (en) | 2003-10-27 | 2007-05-29 | Treadfx, Llc | Tire for preventing rollover or oversteer of a vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4351382A (en) | Tire and wheel rim assemblies | |
| US3610308A (en) | Pneumatic tire | |
| IE66263B1 (en) | "Tread for heavy-vehicle tire in which the central ribs are provided with inclined incisicons" | |
| EP0323895A1 (en) | Aerodynamic profile tire | |
| JPH02197403A (en) | Tire for vehicle | |
| JPS6088601A (en) | Wheel rim | |
| EP1222078B1 (en) | Tire with knurls in bead surface | |
| EP1313624B1 (en) | Pneumatic tire having a stabilizing system for under-inflated conditions | |
| US5885383A (en) | Reserve or back up tire inside a tubeless tire for automobile or other vehicles | |
| EP1126983B1 (en) | Rim and a tire and rim assembly | |
| US4078597A (en) | Tire and wheel assemblies | |
| RU2245797C1 (en) | Removable tread for pneumatic tires | |
| JP3535238B2 (en) | Pneumatic radial tire for heavy loads | |
| US6568765B1 (en) | Composite wheel having a shallow rim | |
| CN219789809U (en) | Tire burst emergency safety device installed between two wheels of rear wheels of passenger and freight car | |
| JPS6317102A (en) | Heavy-duty pneumatic tire | |
| JPH0550815A (en) | Structure of tire whose air chambers are constituted with two layers by means of partition | |
| JPH05139106A (en) | Tire rim | |
| JPS62268704A (en) | Assembled body of wheel body and tire | |
| JP3583537B2 (en) | Pneumatic radial tire | |
| EP4619252A1 (en) | Tire tread with groove having a groove projection with bumper | |
| KR200218767Y1 (en) | a tire which has the central wall and it's a wheel | |
| US20190381833A1 (en) | Tubeless pneumatic tires | |
| GB2064446A (en) | Tyre and wheel rim assemblies | |
| KR101843295B1 (en) | A pneumatic tire |