JPS6340003Y2 - - Google Patents
Info
- Publication number
- JPS6340003Y2 JPS6340003Y2 JP13758882U JP13758882U JPS6340003Y2 JP S6340003 Y2 JPS6340003 Y2 JP S6340003Y2 JP 13758882 U JP13758882 U JP 13758882U JP 13758882 U JP13758882 U JP 13758882U JP S6340003 Y2 JPS6340003 Y2 JP S6340003Y2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- recess
- tread band
- side wall
- tire
- 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
- 238000005266 casting Methods 0.000 claims description 3
- 238000000034 method 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
- 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
- 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
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 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
ツド部が形成された環状のトレツドバンドをその
一方の側面部が溝状凹部の側壁に当接するように
嵌着するとともに、トレツドバンドの反対側の側
面部と溝状凹部の側壁との間には、トレツドバン
ドを前記当接側の側壁へ押し付けて溝状凹部内に
固定する固定用ベルトを嵌着してなる。 In the cast tire according to the present invention, a tire body having a groove-like recess formed all around the outer circumference is molded by a casting method, and a tread portion is formed on the outer circumference in this groove-like recess. An annular tread band is fitted so that one side surface is in contact with the side wall of the groove-shaped recess, and the tread band is placed between the opposite side surface of the tread band and the side wall of the groove-shaped recess on the abutting side. A fixing belt that is pressed against the side wall of the groove and fixed in the groove-shaped recess is fitted.
第１図は、本考案の１実施例をあらわすもの
で、以下本実施例について説明すれば、この注型
タイヤ１はタイヤ本体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 shows one embodiment of the present invention. This embodiment will be described below. This cast tire 1 includes a tire body 2, a tread band 3, and a fixing belt 4, and is mounted on a rim 5. ing.
タイヤ本体（ケース）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。この場
合、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 (case) 2 is formed 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. It is a type product. In this case, in order to facilitate release from the mold after molding, a pair of annular halves divided around the equatorial plane C of the tire are individually molded, and after molding, they are joined together and integrated into the tire body. It is preferable to adopt the method of
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。溝状凹部６の一方の側
壁（タイヤを自動車に装着するとき外側になる方
の側壁）は、底部が上縁部よりも外方に向つて切
り込まれた深さ方向に開く傾斜壁７として形成さ
れている。また、溝状凹部６の反対側の側壁８
（自動車に装着するとき内側になる側壁）付近で
は溝状凹部６が深く切り込まれて、溝状のベルト
嵌合部９となつている。側壁８の突出高さは溝状
凹部６の底面のレベルとほゞ等しく、環状のトレ
ツドバンド３をこの部分から溝状凹部６に嵌脱す
ることができるようになつている。この側壁８は
概略垂直に形成されているが、傾斜壁７と同様に
深さ方向に開く傾斜壁として形成しておいてもよ
い。 A circumferential groove-like recess 6 is formed in the crown portion of the tire body 2. One side wall of the groove-shaped recess 6 (the side wall that becomes the outer side when the tire is mounted on a car) is an inclined wall 7 whose bottom part is cut outward from the upper edge and opens in the depth direction. It is formed. Also, the side wall 8 on the opposite side of the groove-shaped recess 6
The groove-shaped recess 6 is deeply cut in the vicinity of the side wall (the side wall that becomes the inner side when installed in an automobile) to form a groove-shaped belt fitting part 9. The projecting height of the side wall 8 is approximately equal to the level of the bottom surface of the groove-like recess 6, so that the annular tread band 3 can be inserted into and removed from the groove-like recess 6 from this portion. Although this side wall 8 is formed approximately vertically, it may be formed as an inclined wall that opens in the depth direction like the inclined wall 7.
上記溝状凹部６には、外周部にトレツド部３ａ
をそなえた環状のトレツドバンド３および固定用
ベルト４が嵌着されている。トレツドバンド３
は、汎用ゴムのカーボン補強組成物によつて形成
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のタイヤ本体
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１０をそな
えたベルト層１１が埋設されている。コード１０
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。また、固定用ベルト４は、弾
性を有する無端ベルトであり、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。 The groove-like recess 6 has a tread portion 3a on the outer periphery.
An annular tread band 3 and a fixing belt 4 are fitted. Torred band 3
It is preferable to use a carbon-reinforced composition of general-purpose rubber.As the rubber material, it is preferable to use diene rubber such as natural rubber in order to improve the tire's ground contact characteristics, that is, grip characteristics, wear resistance, etc. preferable. A belt layer 11 having cords 10 such as steel cords, nylon cords, polyester cords, etc. is buried in a portion of the tread band 3 near the tire body 2. code 10
is a certain angle in the circumferential direction of the tire, for example 5 to 45 degrees,
More preferably, they are arranged at an angle in the range of 10 to 30 degrees. Furthermore, the fixing belt 4 is an endless belt having elasticity, and is preferably made of natural rubber, plastic, or the like reinforced with a high elastic modulus cord such as a steel cord or aromatic polyamide fiber.
トレツドバンド３は、内周部の巾が外周部の巾
よりも幾分広い、概略台形状の断面をもつバンド
として形成されている。また、固定用ベルト４は
一方の側面部に上記トレツドバンド３の側面部に
密着する傾斜面４ａをそなえ、反対側の側面部４
ｂは溝状凹部６の側壁８に密着する概略垂直面と
して形成されている。トレツドバンド３と固定用
ベルト４を溝状凹部６に嵌着した状態では、トレ
ツドバンド３の一方の傾斜側面３ｂが溝状凹部６
の傾斜壁７に係合し、トレツドバンド３がタイヤ
本体２に強固に固定される。また、固定用ベルト
４は弾性ベルトであつて、トレツドバンド３の反
対側の側面３ｃと溝状凹部６の側壁８との間に圧
入状態で嵌着され、トレツドバンド３を前記傾斜
壁７側に押圧するとともに、その傾斜面４ａと傾
斜した側面３ｃとの係合を介してトレツドバンド
３を溝状凹部６の底面に押えつける働きをなす。
さらに、固定用ベルト４の側面部４ｂは溝状凹部
６の側壁８によつて支持され、タイヤ本体２と固
定用ベルト４との結合を強固なものとしている。 The tread band 3 is formed as a band having a generally trapezoidal cross section, the width of the inner circumference being somewhat wider than the width of the outer circumference. Furthermore, the fixing belt 4 has an inclined surface 4a on one side surface that comes into close contact with the side surface of the tread band 3, and a side surface 4a on the opposite side.
b is formed as a substantially vertical surface that is in close contact with the side wall 8 of the groove-shaped recess 6. When the tread band 3 and the fixing belt 4 are fitted into the groove-shaped recess 6, one inclined side surface 3b of the tread band 3 is fitted into the groove-shaped recess 6.
The tread band 3 is firmly fixed to the tire body 2 by engaging with the inclined wall 7 of the tire body 2. The fixing belt 4 is an elastic belt that is press-fitted between the opposite side surface 3c of the tread band 3 and the side wall 8 of the groove-like recess 6, and presses the tread band 3 toward the inclined wall 7. At the same time, the tread band 3 is pressed against the bottom surface of the groove-like recess 6 through the engagement between the inclined surface 4a and the inclined side surface 3c.
Further, the side surface portion 4b of the fixing belt 4 is supported by the side wall 8 of the groove-like recess 6, thereby making the connection between the tire body 2 and the fixing belt 4 strong.
本実施例では、トレツドバンド３に対する固定
用ベルト４および溝状凹部６の側壁の接触部が傾
斜面として形成され、これら傾斜面同士の係合に
よつてタイヤ本体２に対するトレツドバンド３の
固定が強固なものとなつているが、上記接触部は
必ずしも傾斜面とする必要はなく、場合によつて
はその一部または全部を垂直面同士の接触部とし
ておいてもよい。また、トレツドバンド３の内面
部と溝状凹部６の底面部に、互いに係合する凸条
および凹条を片方ずつ形成しておけば、両者間の
スリツプが防止されるので、トレツドバンド３と
タイヤ本体２との結合がより強固なものとなる。
なお、弾性体である固定用ベルト４を取り外せ
ば、トレツドバンド３を自在に嵌脱することがで
きるので、トレツドバンド３を適宜交換すること
ができる。図示例の注型タイヤは、そのビード部
に１対の補強用のビードコア１２が設けられてい
る。 In this embodiment, the contact portion of the fixing belt 4 and the side wall of the groove-shaped recess 6 with respect to the tread band 3 is formed as an inclined surface, and the engagement of these inclined surfaces allows the tread band 3 to be firmly fixed to the tire body 2. However, the contact portion does not necessarily have to be an inclined surface, and in some cases, a part or all of it may be a contact portion between vertical surfaces. Furthermore, if a convex line and a concave line that engage with each other are formed on the inner surface of the tread band 3 and the bottom surface of the groove-like recess 6, one side will prevent slippage between the two, so that the tread band 3 and the tire body The bond with 2 becomes stronger.
Note that if the fixing belt 4, which is an elastic body, is removed, the tread band 3 can be freely inserted and removed, so the tread band 3 can be replaced as appropriate. The illustrated example of a cast tire is provided with a pair of reinforcing bead cores 12 at its bead portions.
本考案にかかる注型タイヤは、上記のように構
成されているので、トレツド部を適宜交換するこ
とが可能となり、経済的でかつ汎用性にすぐれた
実用性の高いものとなつた。このタイヤは、軽乗
用車、自動二輪、シテイカー等に好適に使用する
ことができる。 Since the cast tire according to the present invention is constructed as described above, it is possible to replace the tread portion as appropriate, making it economical, highly versatile, and highly practical. This tire can be suitably used for light passenger cars, 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. 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が形成された環状のト
レツドバンドを、その一方の側面部が前記溝状凹
部の側壁に当接するように嵌着し、トレツドバン
ドの反対側の側面部と溝状凹部の側壁との間に
は、トレツドバンドを前記当接側の側壁に押し付
けて溝状凹部内に固定する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 ring-shaped tread band with a tread portion formed on the outer periphery is placed in the groove-like recess of the tire body, which is formed by a casting method and has a groove-like recess formed all around the outer periphery. The tread band is fitted so that it comes into contact with the side wall of the groove-like recess, and the tread band is pressed against the side wall on the abutting side to form a groove between the side surface on the opposite side of the tread band and the side wall of the groove-like recess. A cast tire characterized by a fixing belt fitted into a recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13758882U JPS5940105U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13758882U JPS5940105U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5940105U JPS5940105U (en) | 1984-03-14 |
| JPS6340003Y2 true JPS6340003Y2 (en) | 1988-10-20 |
Family
ID=30308991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13758882U Granted JPS5940105U (en) | 1982-09-09 | 1982-09-09 | cast tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940105U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5225487B1 (en) * | 2012-05-25 | 2013-07-03 | 株式会社ブリヂストン | Tires and tires with table tires |
-
1982
- 1982-09-09 JP JP13758882U patent/JPS5940105U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5940105U (en) | 1984-03-14 |
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