JPS6340002Y2 - - Google Patents
Info
- Publication number
- JPS6340002Y2 JPS6340002Y2 JP13758782U JP13758782U JPS6340002Y2 JP S6340002 Y2 JPS6340002 Y2 JP S6340002Y2 JP 13758782 U JP13758782 U JP 13758782U JP 13758782 U JP13758782 U JP 13758782U JP S6340002 Y2 JPS6340002 Y2 JP S6340002Y2
- Authority
- JP
- Japan
- Prior art keywords
- fixing belt
- tire
- tread band
- tread
- cast
- 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
Links
- 238000000034 method Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Landscapes
- Tires In General (AREA)
Description
【考案の詳細な説明】
この考案は、トレツド部を交換可能に設けた注
型タイヤに関するものである。[Detailed Description of the Invention] This invention relates to a cast tire having a replaceable tread portion.
流動性高分子材料を金型内に加圧注入し、これ
を硬化させて得る注型タイヤが知られているが、
従来の注型タイヤはトレツド部がタイヤ本体と一
体に成形されていたので、トレツド面が摩耗した
ときは全体が使用不能となり、不経済であつた。
また、トレツド部の形状が特定化されるため、用
途が限定され、汎用性に乏しかつた。 Cast-molded tires are known, which are obtained by injecting a fluid polymer material under pressure into a mold and curing it.
In conventional cast-molded tires, the tread portion was molded integrally with the tire body, so when the tread surface wore out, the entire tire became unusable, making it uneconomical.
Furthermore, since the shape of the tread portion is specified, its uses are limited and its versatility is poor.
この考案は、注型タイヤのトレツド部を交換可
能とすることにより、上記問題点を改良すべくな
されたもので、これについて以下に説明する。 This invention was made to improve the above-mentioned problem by making the tread portion of a cast tire replaceable, and will be explained below.
本考案にかかる注型タイヤは、外周部に全周に
わたつて溝状凹部が形成されたタイヤ本体を注型
法によつて成形し、この溝状凹部に外周部にトレ
ツド部および固定用ベルト嵌合溝が形成されたト
レツドバンドを嵌着し、さらにその固定用ベルト
嵌合溝に環状の固定用ベルトを嵌着したことを特
徴としている。以下、図面にあらわされた実施例
について説明する。 The cast tire according to the present invention has a tire body in which a groove-like recess is formed all around the outer periphery, and is molded by a casting method, and a tread part and a fixing belt are formed on the outer periphery of the tire body in the groove-like recess. It is characterized in that a tread band in which a fitting groove is formed is fitted, and an annular fixing belt is further fitted in the fixing belt fitting groove. The embodiments shown in the drawings will be described below.
第１図は本考案にかかる注型タイヤの１例をあ
らわす断面図であり、この注型タイヤ１はタイヤ
本体（ケース）２、トレツドバンド３および固定
用ベルト４をそなえ、リム５に装着されている。 FIG. 1 is a cross-sectional view showing an example of a cast tire according to the present invention. This cast tire 1 comprises a tire body (case) 2, a tread band 3 and a fixing belt 4, and is mounted on a rim 5.
タイヤ本体２は、ポリウレタン、熱可塑性エラ
ストマー例えば天然ゴム、ブタジエンゴム、スチ
レン−ブタジエンゴム、合成イソプレンゴム、ブ
チルゴム等の高弾性率材料を金型内に加圧注入し
て成形される注型製品である。タイヤ本体２の製
造に際しては、成形後の離型を容易にするため、
タイヤの赤道面Ｃを中心に分割した形状の１対の
環状半体を個々に成形し、成形後に両者を相互に
接合一体化してタイヤ本体とする方法を採用する
のが好ましい。 The tire body 2 is a cast product that is molded by pressurizing and injecting a high elastic modulus material such as polyurethane, thermoplastic elastomer, natural rubber, butadiene rubber, styrene-butadiene rubber, synthetic isoprene rubber, butyl rubber into a mold. be. When manufacturing the tire body 2, in order to facilitate release from the mold after molding,
It is preferable to adopt a method in which a pair of annular halves each having a shape divided around the equatorial plane C of the tire are individually molded, and after molding, both are joined and integrated to form a tire body.
タイヤ本体２のクラウン部には、周方向の溝状
凹部６が形成されている。この溝状凹部は、この
部分に嵌着されるトレツドバンド３を確実に保持
することができ、かつトレツドバンド３の嵌脱が
ある程度容易であるような深さに形成される。 A circumferential groove-like recess 6 is formed in the crown portion of the tire body 2. This groove-like recess is formed to such a depth that it can reliably hold the tread band 3 fitted into this portion and allows the tread band 3 to be fitted and removed with some degree of ease.
上記溝状凹部に嵌着されるトレツドバンド３
は、汎用ゴムのカーボン補強組成物を用いて製作
するのが好ましく、ゴム材としては、タイヤの接
地特性すなわちグリツプ特性や耐摩耗性等を向上
させるため、天然ゴム等のジエン系ゴムを用いる
のが好ましい。上記トレツドバンド３は、外周部
にトレツド部３ａをそなえ、タイヤ本体２に近い
部分には、スチールコード、ナイロンコード、ポ
リエステルコード等のコード７をそなえたベルト
層８が埋設されている。コード７は、タイヤの周
方向に一定角度例えば５〜45度、より好ましくは
10〜30度の範囲の角度で配置しておくのが望まし
い。トレツドバンド３の外周部には固定用ベルト
嵌合溝９が２本設けられている。固定用ベルト嵌
合溝９はトレツドバンド３の全周にわたつて形成
され、固定用ベルト４をこの溝に嵌着したとき、
該固定用ベルト４がトレツド部３ａよりも内側に
かくれるような深さに形成されるが、あまり深く
すると固定用ベルト４の嵌着操作が困難となると
ともに、トレツドバンド３自体の強度を低下させ
るおそれもあるので、嵌着された固定用ベルト４
の外面がトレツドバンド３の外周面よりも数mm内
側に位置するようにしておくのが好ましい。固定
用ベルト嵌合溝９および固定用ベルト４の数は、
１本または２本以上とすることができるが、図示
例のようにトレツドバンド３の両側端部付近に２
本設けておくのが好ましい。 Tread band 3 fitted into the groove-like recess
It is preferable to manufacture the tire using a general-purpose rubber carbon-reinforced composition, and as the rubber material, it is preferable to use diene rubber such as natural rubber in order to improve the tire's grounding characteristics, that is, grip characteristics, abrasion resistance, etc. is preferred. The tread band 3 has a tread portion 3a on its outer periphery, and a belt layer 8 having cords 7 such as steel cords, nylon cords, polyester cords, etc. is embedded in a portion close to the tire body 2. The cord 7 is formed at a certain angle in the circumferential direction of the tire, for example, 5 to 45 degrees, more preferably
Ideally, the angle should be between 10 and 30 degrees. Two fixing belt fitting grooves 9 are provided on the outer periphery of the tread band 3. The fixing belt fitting groove 9 is formed around the entire circumference of the tread band 3, and when the fixing belt 4 is fitted into this groove,
The fixing belt 4 is formed at a depth such that it is hidden inside the tread portion 3a, but if it is too deep, it becomes difficult to fit the fixing belt 4 and the strength of the tread band 3 itself is reduced. There is a risk that the fixing belt 4 fitted
It is preferable that the outer surface of the tread band 3 be located several mm inside the outer peripheral surface of the tread band 3. The number of fixing belt fitting grooves 9 and fixing belts 4 is as follows:
The number of the tread band 3 can be one or more, but as shown in the example, there are two near both ends of the tread band 3.
It is preferable to have a book.
固定用ベルト４は、弾性を有する所定長さのベ
ルトの両端部を接合して環状にするもので、スチ
ールコードや芳香族ポリアミド繊維等の高弾性率
コードで補強された天然ゴム、プラスチツクス等
のベルトを用いるのが好ましい。固定用ベルトの
ジヨイント方式は、該ベルトの両端部を強固に接
合することができるものならどのようなものでも
よく、通常採用される種々のベルト接合法を採用
することができる。。固定用ベルト４の内面部に
第２図に示すような突起１０を多数形成するとと
もに、トレツドバンド３の固定用ベルト嵌合溝９
底面には該突起１０が係合する凹部を形成してお
けば、固定用ベルト４とトレツドバンド３との結
合がより強固なものとなるので有利である。な
お、タイヤ本体２のビード部には補強用のビード
コア１１が埋設されている。 The fixing belt 4 is an elastic belt of a predetermined length joined at both ends to form a ring, and is made of natural rubber, plastic, etc. reinforced with high elastic modulus cords such as steel cords and aromatic polyamide fibers. It is preferable to use a belt of The joint method of the fixing belt may be any method as long as both ends of the belt can be firmly joined, and various commonly used belt joining methods can be employed. . A large number of projections 10 as shown in FIG. 2 are formed on the inner surface of the fixing belt 4, and a fixing belt fitting groove 9 of the tread band 3 is formed.
It is advantageous to form a recess in the bottom surface into which the protrusion 10 engages, since this will strengthen the connection between the fixing belt 4 and the tread band 3. Note that a reinforcing bead core 11 is embedded in the bead portion of the tire body 2.
本考案にかかる注型タイヤは、トレツド部をそ
なえたトレツドバンドをタイヤ本体と別体に製作
し、タイヤ本体に嵌着するものであるから、トレ
ツド部を適宜交換することが可能となり、経済性
および汎用性にすぐれたものとなつた。トレツド
バンドは固定用ベルトで締着されるので、タイヤ
本体に対する取付け強度が高く、トレツドバンド
の取換え作業も簡単である。この注型タイヤは、
軽自動車、自動二輪車、シテイカー等に好適に使
用することができる。 In the cast tire according to the present invention, the tread band with the tread portion is manufactured separately from the tire body and is fitted onto the tire body, so the tread portion can be replaced as needed, making it economical and efficient. It has become highly versatile. Since the tread band is fastened with a fixing belt, the attachment strength to the tire body is high, and the tread band can be easily replaced. This cast tire is
It can be suitably used for light vehicles, motorcycles, city cars, etc.
第１図は本考案にかかる注型タイヤの１例をあ
らわす断面図、第２図は固定用ベルトの斜視図で
ある。
１……注型タイヤ、２……タイヤ本体、３……
トレツドバンド、４……固定用ベルト、６……溝
状凹部。
FIG. 1 is a sectional view showing an example of a cast tire according to the present invention, and FIG. 2 is a perspective view of a fixing belt. 1... Casting tire, 2... Tire body, 3...
Tread band, 4...Fixing belt, 6...Groove-shaped recess.
Claims (1)
つて溝状凹部が形成されたタイヤ本体の該溝状凹
部に、外周部にトレツド部および固定用ベルト嵌
合溝が形成されたトレツドバンドを嵌着し、該ト
レツドバンドの固定用ベルト嵌合溝に、環状の固
定用ベルトを嵌着したことを特徴とする注型タイ
ヤ。 A tread band formed by a casting method, in which a tread portion and a fixing belt fitting groove are formed on the outer periphery of a tire main body, in which a groove-like recess is formed all around the outer periphery of the tire body. 1. A cast tire characterized in that a ring-shaped fixing belt is fitted into a fixing belt fitting groove of the tread band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13758782U JPS5940104U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13758782U JPS5940104U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5940104U JPS5940104U (en) | 1984-03-14 |
| JPS6340002Y2 true JPS6340002Y2 (en) | 1988-10-20 |
Family
ID=30308990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13758782U Granted JPS5940104U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940104U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026017A (en) * | 1988-06-24 | 1990-01-10 | Kawazoe Kikai Seisakusho:Kk | Roll bearing fixing device for round bar straightening machine |
-
1982
- 1982-09-09 JP JP13758782U patent/JPS5940104U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5940104U (en) | 1984-03-14 |
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