JPS60209306A - Elastic ring for holding tire inner ring - Google Patents
Elastic ring for holding tire inner ringInfo
- Publication number
- JPS60209306A JPS60209306A JP59064787A JP6478784A JPS60209306A JP S60209306 A JPS60209306 A JP S60209306A JP 59064787 A JP59064787 A JP 59064787A JP 6478784 A JP6478784 A JP 6478784A JP S60209306 A JPS60209306 A JP S60209306A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- rim
- elastic ring
- ring
- core
- 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.)
- Granted
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
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
-
- 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
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
- B60C17/06—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient
- B60C2017/068—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient comprising springs, e.g. helical springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Tyre Moulding (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、タイヤ外皮とリムによって形成されるタイヤ
内部空間に、内圧低下の隊、タイヤ外皮を支持するため
のタイヤ中子を内蔵した安全タイヤにおいて、前記タイ
ヤ中子とリムの摩擦、摩耗等を防止するとともに、タイ
ヤのビード部のリム外れを防止するためにリムとタイヤ
中子の間に挿置される弾性リングに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a safety tire in which a tire core for supporting the tire outer skin is built into a tire inner space formed by a tire outer skin and a rim, and a tire core for supporting the tire outer skin. This invention relates to an elastic ring that is inserted between a rim and a tire core in order to prevent friction, wear, etc. of the rim and to prevent the bead of the tire from coming off the rim.
従来、タイヤ走行時のパンク等による内圧低下の際の操
縦の安全性を確保するため、タイヤ内部にタイヤ外皮を
支持するためのタイヤ中子を嵌装した構造の安全タイヤ
が多く提案されている。この種の安全タイヤは、第１図
にその断面図で示される如く、リム５上にタイヤ外皮１
を載置し、その内部には環状のタイヤ中子が嵌装されて
いる。In the past, many safety tires have been proposed in which a tire core is fitted inside the tire to support the tire outer skin, in order to ensure operational safety in the event of a drop in internal pressure due to a puncture or the like while driving. . This type of safety tire has a tire outer skin 1 on the rim 5, as shown in the cross-sectional view in FIG.
A ring-shaped tire core is fitted inside the tire core.
更にタイヤ中子２の内周縁２ａとリム５の外周面の間で
かつタイヤ中子の下端両側部とタイヤ外皮のビード部の
間には、弾性リング６が挿置されており、タイヤ中子を
リムから隔離するとともに、内圧低下時のビード部の固
定を強固ならしめるものである。なおこの安全タイヤの
組立ては、タイヤ外皮材内部で、数個の構成部材よりな
る中子を組立て、しかる後、タイヤ中子の雨下端部に、
弾性リング６を嵌めこみ、これらをリムの片側から装着
してその後サイドリング３をタイヤ軸方向内側に押しつ
けながら、シールリング７及びロックリング４を嵌めこ
んで固定する。Furthermore, an elastic ring 6 is inserted between the inner circumferential edge 2a of the tire core 2 and the outer circumferential surface of the rim 5, and between both sides of the lower end of the tire core and the bead of the tire outer skin. This is to isolate the bead from the rim and to ensure that the bead is firmly fixed when the internal pressure drops. In order to assemble this safety tire, a core made up of several components is assembled inside the tire outer skin material, and then a core is inserted into the lower end of the tire core.
The elastic ring 6 is fitted, these are attached from one side of the rim, and then the seal ring 7 and the lock ring 4 are fitted and fixed while pressing the side ring 3 inward in the axial direction of the tire.
このような安全タイヤに用いられる弾性リングは、タイ
−１・中子及びタイートビード部の固定が強固であると
ともに、タイヤのリム組め作業が容易であること、更に
熱による寸法安定性が維持されることが要求される。そ
こで発明者により既に提案したものとして、特開昭５８
−１４１９０３号がある。これば第２図に示すごとく、
弾性リング９は夕・イヤ中子の下側に配置される主体部
９ａとタイヤ中子の下端側部に配置される緩衝部９ｂを
具えており、この緩衝部にはタイヤ軸方向への圧縮移動
を容易ならしめるための空隙１０が形成されている。こ
のような弾性リングの配置によって、タイヤ中子及びタ
イ４・ビード部の固定が確保されるとともに、タイヤの
リム組み作業も容易となる利点がある。しかし弾性リン
グは通常ゴム弾性体で構成されるため、タイヤ走行時の
昇温に伴い弾性が低下し、そのためビード部１１に当接
する弾性リングの端部９Ｃが半径方向外方に持ち上げら
れ、弾性リングの端部９ｃの径が徐々に増大して、ビー
ド部の固定保持能力が低下するという欠点が生じた。The elastic ring used in such safety tires firmly fixes the tie-1 core and tie bead, makes it easy to assemble the tire rim, and maintains dimensional stability due to heat. This is required. Therefore, as already proposed by the inventor, JP-A-58
There is No.-141903. As shown in Figure 2,
The elastic ring 9 includes a main body portion 9a disposed below the tire core and a buffer portion 9b disposed at the lower end side of the tire core. A gap 10 is formed to facilitate movement. This arrangement of the elastic ring has the advantage of ensuring the fixation of the tire core and the tie 4/bead portion, as well as facilitating the task of assembling the tire rim. However, since the elastic ring is usually composed of a rubber elastic body, its elasticity decreases as the temperature rises while the tire is running, and as a result, the end 9C of the elastic ring that contacts the bead portion 11 is lifted outward in the radial direction, causing the elastic ring to deteriorate. The diameter of the end portion 9c of the ring gradually increases, resulting in a disadvantage that the ability to securely hold the bead portion decreases.
本発明は、このような欠点を解決し、長時間に亘ってビ
ード部の固定保持を可能ならしめる弾性リングを提案す
るものである。The present invention solves these drawbacks and proposes an elastic ring that can securely hold the bead portion for a long period of time.
本発明は、リム上にタイヤ外皮を装着するとともに、リ
ムの外周面の外側に同軸に配される内周縁と、タイヤパ
ンク時にタイヤ外皮を支持する外周縁を具えた環状のタ
イヤ中子を内蔵した安全タイヤの前記リムの外周面をタ
イヤ中子の内周縁の間に挿置される、弾性リングであっ
て、該弾性リングはタイヤ中子の内周繰下側に挿置され
る中実の主体部と、この主体部の少なくとも片側にはタ
イヤ軸方向に圧縮自在の緩衝空隙部を具えるとともに、
先端部には抗張材が埋設されている緩衝部とで構成され
ていることを特徴とするタイヤ中子保持用弾性リングで
ある。The present invention includes a tire outer skin mounted on the rim, and a built-in annular tire core that has an inner peripheral edge coaxially disposed outside the outer peripheral surface of the rim and an outer peripheral edge that supports the tire outer skin in the event of a tire puncture. an elastic ring that is inserted between the outer peripheral surface of the rim of the safety tire and the inner peripheral edge of the tire core, the elastic ring being a solid ring that is inserted on the inner peripheral side of the tire core; a main body, and at least one side of the main body has a buffer gap that is freely compressible in the axial direction of the tire, and
This is an elastic ring for holding a tire core, characterized by comprising a buffer part in which a tensile material is embedded in the tip part.
以下本発明の一実施例を図面に基づき説明する。An embodiment of the present invention will be described below based on the drawings.
図において、弾性リング１３は、タイヤ中子２の内周縁
２ｂとリム５の間に挿置される主体部１３ａとタイ−１
・中子の下端側部に配置される緩衝部１３ｂより構成さ
れる。緩衝部には、弾性リングがタイヤ軸方向への圧縮
移動が容易となるように空隙部１４が形成されている。In the figure, the elastic ring 13 is connected to a main body portion 13a inserted between the inner peripheral edge 2b of the tire core 2 and the rim 5 and the tie 1.
- Consists of a buffer section 13b arranged at the lower end side of the core. A gap 14 is formed in the buffer portion so that the elastic ring can be easily compressed and moved in the tire axial direction.
空隙部１４の断面は、略円形を有しており、その一端は
開放されている。そして弾性リングの断面はほぼ、アル
ファベット文字のＰの形状で構成されている。さらに弾
性リング１３のビード部と当接する先端部には、環状の
抗張材１７が埋設されており、該領域における半径方向
の寸法安定性を確保する。ここで抗張材１７は、弾性率
が３０００ ｋｇ ／ 鶴’ 以上の無機繊維もしくは
有機繊維のコードであり、例えばガラス繊維、スチール
繊維、ナイロン、ポリエステル、レーヨン、アラミド等
であるが、特に熱安定性に優れたスチールコードが好適
である。繊維コードの弾性率が３０００ ｋｇ／鶴２
より小さいと、ビード部からの圧縮力に充分耐えること
ができず、弾性リングの寸法を維持できない。そしてコ
ードは、無ｔａｌ！を維コードを用いる場合は径が０．
４１以下、好ましくは０．３Ｎ以下の素線を複数本撚り
合わせて用いることが好ましい。これは素線径が０．０
４Ｍを越えたものを埋設すると弾性リングの変形が困難
となり、リムに装着する際の作業を困難にする。このよ
うにして構成された弾性リング１３を安全タイヤに組み
込むには、第４図に示すごとく左右一対として用いられ
る。そこでタイヤ外皮のビード部をリム組みするに際し
サイドリング３をタイヤ軸方向に押しつけることにより
、弾性リングの緩衝部は圧縮され空隙部１４の両側面１
５．１６は接合してビード部を容易にリムに嵌合するこ
とを可能とする。The cross section of the cavity 14 has a substantially circular shape, and one end thereof is open. The cross section of the elastic ring is approximately shaped like the letter P. Further, an annular tensile material 17 is embedded in the distal end of the elastic ring 13 that contacts the bead portion to ensure radial dimensional stability in this region. Here, the tensile material 17 is a cord of inorganic fiber or organic fiber having an elastic modulus of 3000 kg/Tsuru' or more, such as glass fiber, steel fiber, nylon, polyester, rayon, aramid, etc. A steel cord with excellent properties is suitable. The elastic modulus of the fiber cord is 3000 kg/Tsuru2
If it is smaller, it will not be able to sufficiently withstand the compressive force from the bead portion, and the dimensions of the elastic ring will not be maintained. And the code is talless! When using fiber cord, the diameter should be 0.
It is preferable to use a plurality of wires of 41N or less, preferably 0.3N or less, twisted together. This has a wire diameter of 0.0
If the elastic ring exceeds 4M, it will be difficult to deform the elastic ring, making it difficult to attach it to the rim. In order to incorporate the elastic rings 13 thus constructed into a safety tire, they are used as a pair of left and right rings as shown in FIG. Therefore, by pressing the side ring 3 in the axial direction of the tire when assembling the bead part of the tire outer skin into the rim, the buffer part of the elastic ring is compressed, and both sides 1 of the gap part 14 are compressed.
5.16 allows the bead to be easily fitted to the rim by joining.
一方、シールリング７及びロックリング４でサイドリン
グを固定すると前記緩衝部の回復力でビード部は両側に
押しつけられて、ビード部が強固に保持されることとな
る。また弾性リングの先端部には抗張材１７が埋設され
ているためタイヤビード部からの圧力更に走行による昇
温によっても半径方向寸法は安定に維持される。On the other hand, when the side ring is fixed with the seal ring 7 and the lock ring 4, the bead part is pressed against both sides by the restoring force of the buffer part, and the bead part is firmly held. Furthermore, since the tensile material 17 is embedded in the tip of the elastic ring, the radial dimension is maintained stably even under pressure from the tire bead and temperature rise due to running.
なお本発明は左右一対の弾性リングとして構成したが、
左右を分離することなく一体物として構成してもよく、
また空隙部の開放部を図とは反対に半径方向外側に形成
してもよいことは勿論である。さらに弾性リングを左右
一対の分離したものとして用いる場合、右側もしくは左
側の一方にのみ本発明の弾性リングを用い、他の一方の
側は従来の形状の弾性リングを用いてもよい。Although the present invention is configured as a pair of left and right elastic rings,
The left and right sides may be configured as a single unit without being separated,
It goes without saying that the opening of the cavity may be formed on the outside in the radial direction, contrary to the drawing. Further, when the elastic rings are used as a pair of separated left and right rings, the elastic ring of the present invention may be used only on one of the right side or the left side, and a conventionally shaped elastic ring may be used on the other side.
第１図は安全タイヤの断面図、第２図は弾性リングの装
着状態を示す概略断固図、第３図は本発明の弾性リング
の断面図、第４図はその弾性リングを安全タイヤに組み
こんだ状態の安全タイヤの断面図である。
１−タイヤ外皮、 ２−タイヤ中子、
３−サイドリング、４−・・ロックリング、５・−リム
、 ７−シールリング、
１３−弾性リング、１４−空隙部、
１７−抗張材。
特許出願人 住友ゴム工業株式会社
代理人 弁理士 苗 村 正Fig. 1 is a sectional view of the safety tire, Fig. 2 is a schematic diagram showing the state in which the elastic ring is attached, Fig. 3 is a sectional view of the elastic ring of the present invention, and Fig. 4 is the assembly of the elastic ring into the safety tire. FIG. 2 is a cross-sectional view of the safety tire in a collapsed state. 1 - Tire outer skin, 2 - Tire core, 3 - Side ring, 4 - Lock ring, 5 - Rim, 7 - Seal ring, 13 - Elastic ring, 14 - Gap, 17 - Tensile material. Patent applicant Sumitomo Rubber Industries Co., Ltd. Agent Patent attorney Tadashi Naemura
Claims (1)
の夕１周面の外側に同軸に配される内周縁とタイヤパン
ク時にタイヤ外皮を支持する外周縁を具えた環状のタイ
ヤ中子を内蔵した安全タイヤの前記リムの外周面と、タ
イ−１・中子の内周縁の間に挿置される弾性リングであ
って、該弾性リングはタイヤ中子の内周繰下側に挿置さ
れる中実の主体部と、この主体部の少なくとも片側には
、タイヤ軸方向に圧縮自在の緩衝空隙部を具えるととも
に、先端部にば抗張材が埋設されている緩衝部とで構成
されていることを特徴とするタイヤ中子保持用弾性リン
グ。11) The tire outer skin is mounted on the rim, and an annular tire core is built in, which has an inner peripheral edge coaxially arranged on the outside of the outer peripheral surface of the rim, and an outer peripheral edge that supports the tire outer skin in the event of a tire puncture. An elastic ring inserted between the outer circumferential surface of the rim of the safety tire and the inner circumferential edge of the tie-1 core, the elastic ring being inserted on the lower side of the inner circumference of the tire core. It is composed of a solid main body part, and a buffer part that is provided with a buffer gap part that is freely compressible in the tire axial direction on at least one side of the main body part, and has a tensile material embedded in the tip part. An elastic ring for holding a tire core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064787A JPS60209306A (en) | 1984-03-31 | 1984-03-31 | Elastic ring for holding tire inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064787A JPS60209306A (en) | 1984-03-31 | 1984-03-31 | Elastic ring for holding tire inner ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60209306A true JPS60209306A (en) | 1985-10-21 |
| JPH0438603B2 JPH0438603B2 (en) | 1992-06-25 |
Family
ID=13268289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59064787A Granted JPS60209306A (en) | 1984-03-31 | 1984-03-31 | Elastic ring for holding tire inner ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60209306A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54122502A (en) * | 1978-02-24 | 1979-09-22 | Dunlop Co Ltd | Tire and wheel rim assembly |
| JPS5852845A (en) * | 1981-09-24 | 1983-03-29 | Toshiba Corp | Manufacture of semiconductor device |
| JPS58141903A (en) * | 1982-02-18 | 1983-08-23 | Sumitomo Rubber Ind Ltd | Safety tire |
| JPS58180307A (en) * | 1982-04-16 | 1983-10-21 | Bridgestone Corp | Tire wheel for heavy load having double supporting means of wheel weight |
| JPS58182805A (en) * | 1982-04-21 | 1983-10-25 | Kawasaki Heavy Ind Ltd | Automatic demagnetizer |
-
1984
- 1984-03-31 JP JP59064787A patent/JPS60209306A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54122502A (en) * | 1978-02-24 | 1979-09-22 | Dunlop Co Ltd | Tire and wheel rim assembly |
| JPS5852845A (en) * | 1981-09-24 | 1983-03-29 | Toshiba Corp | Manufacture of semiconductor device |
| JPS58141903A (en) * | 1982-02-18 | 1983-08-23 | Sumitomo Rubber Ind Ltd | Safety tire |
| JPS58180307A (en) * | 1982-04-16 | 1983-10-21 | Bridgestone Corp | Tire wheel for heavy load having double supporting means of wheel weight |
| JPS58182805A (en) * | 1982-04-21 | 1983-10-25 | Kawasaki Heavy Ind Ltd | Automatic demagnetizer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438603B2 (en) | 1992-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |