JPS6210826B2 - - Google Patents
Info
- Publication number
- JPS6210826B2 JPS6210826B2 JP54087426A JP8742679A JPS6210826B2 JP S6210826 B2 JPS6210826 B2 JP S6210826B2 JP 54087426 A JP54087426 A JP 54087426A JP 8742679 A JP8742679 A JP 8742679A JP S6210826 B2 JPS6210826 B2 JP S6210826B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow body
- tire
- liquid rubber
- air
- annular hollow
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Tires In General (AREA)
Description
【発明の詳細な説明】
本発明は新規なタイヤおよびその製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel tire and method for manufacturing the same.
従来から安全タイヤとしていわゆるソリツドタ
イヤが知られており、主としてフオークリフトな
どの低速で重荷重の車輌のタイヤとして用いられ
ている。しかしながら、ソリツドタイヤは緩衝性
に劣るため路面の衝撃が直接的に運転者に伝わる
という欠点がある。 2. Description of the Related Art So-called solid tires have been known as safety tires, and are mainly used as tires for low-speed, heavy-load vehicles such as forklifts. However, solid tires have a disadvantage in that they have poor cushioning properties and the impact of the road surface is directly transmitted to the driver.
一方、空気入りタイヤは緩衝性が良好であり、
自動車などの各種の車輌に広く使用されている
が、パンクした場合に車輌の操縦に支障を来た
し、事故を誘発するおそれがある等の欠点を有し
ている。 On the other hand, pneumatic tires have good cushioning properties,
Although they are widely used in various vehicles such as automobiles, they have drawbacks such as impeding the operation of the vehicle in the event of a flat tire and potentially causing an accident.
本発明は上記の欠点を解消した空気入りタイヤ
およびその製造方法を提供することを目的として
いる。すなわち本発明は、外周面に糸状または細
帯状補強材料を巻設した環状中空体および当該環
状中空体の外周面に液状ゴム硬化物から形成され
たタイヤ本体を一体的に被着してなるタイヤを提
供するものである。さらに、本発明は当該タイヤ
の製造方法として環状中空体の外周面に、液状ゴ
ムを浸潤させた糸状または細帯状補強材料を巻設
し、当該中空体をタイヤ成形用割型内に収納して
当該中空体内に空気を圧入して定形を保持せし
め、次いで前記割型内の空間部に液状ゴムを注入
した後、前記中空体内の空気を一部抜出し、さら
に液状ゴムを注入したのち前記中空体内に再び空
気を圧入すると共に液状ゴムを硬化せしめること
を特徴とするタイヤの製造方法を提供するもので
ある。 An object of the present invention is to provide a pneumatic tire that eliminates the above-mentioned drawbacks and a method for manufacturing the same. That is, the present invention provides a tire comprising an annular hollow body around which a reinforcing material in the form of threads or strips is wound, and a tire body made of a cured liquid rubber material integrally attached to the outer circumferential surface of the annular hollow body. It provides: Furthermore, the present invention provides a method for manufacturing the tire by winding a reinforcing material in the form of a thread or strip infiltrated with liquid rubber around the outer peripheral surface of an annular hollow body, and storing the hollow body in a split mold for forming a tire. Air is pressurized into the hollow body to maintain its regular shape, and then liquid rubber is injected into the space in the split mold, a part of the air inside the hollow body is extracted, and liquid rubber is further injected. The present invention provides a method for manufacturing a tire, which comprises reinjecting air into the tire and curing the liquid rubber.
本発明を図面により説明すると、第１図に示し
たように、本発明のタイヤは基本的には環状中空
体２と当該中空体の外周面に一体的に被着せしめ
たタイヤ本体１とから成る。図中、３はトレツ
ド、４はリムである。 To explain the present invention with reference to the drawings, as shown in Fig. 1, the tire of the present invention basically consists of an annular hollow body 2 and a tire body 1 integrally attached to the outer peripheral surface of the hollow body. Become. In the figure, 3 is a tread, and 4 is a rim.
タイヤ本体１は液状ゴムを硬化させて形成され
るものである。本発明で使用する液状ゴムとは室
温で流動性をもち、適当な化学的処理、例えば硬
化処理によつて三次元網目構造を形成し、通常の
加硫ゴムと全く同じ物理特性を示す重合体であ
る。このような液状ゴムの例としては、分子末端
にカルボキシル基、水酸基、メルカプト基、ハロ
ゲン原子、アミノ基、アジリジノ基、エポキシ基
などのカ橋を形成しうる官能基をもつた平均分子
量500〜8000のポリブタジエン、ポリイソプレ
ン、ポリスチレン、ポリクロロプレン、ポリエチ
レン、ブタジエン／イソプレン共重合体、アクリ
ロニトリル／ブタジエン共重合体、スチレン／ブ
タジエン共重合体のような、いわゆるテレキーリ
ツク液状ゴムや、液状ウレタンゴム、液状チオコ
ール、熱分解ゴム、オゾン分解ゴム、液状ケイ素
ゴムなどがある。 The tire body 1 is formed by curing liquid rubber. The liquid rubber used in the present invention is a polymer that is fluid at room temperature, forms a three-dimensional network structure through appropriate chemical treatment, such as curing treatment, and exhibits the same physical properties as ordinary vulcanized rubber. It is. Examples of such liquid rubbers include rubbers with an average molecular weight of 500 to 8,000 that have a functional group capable of forming a bridge such as a carboxyl group, hydroxyl group, mercapto group, halogen atom, amino group, aziridino group, or epoxy group at the molecular end. So-called telechelic liquid rubbers such as polybutadiene, polyisoprene, polystyrene, polychloroprene, polyethylene, butadiene/isoprene copolymers, acrylonitrile/butadiene copolymers, styrene/butadiene copolymers, liquid urethane rubbers, liquid thiols, These include pyrolyzed rubber, ozone decomposed rubber, and liquid silicon rubber.
液状ゴムの硬化剤としては各種のものを使用で
きるが、とりわけジイソシアネート化合物が好ま
しく、その例としてはトリレンジイソシアネー
ト、４，4′−ジフエニルメタンジイソシアネート
などがある。硬化剤は液状ゴム100重量部当り５
〜15重量部の割合で使用することが適当である。
さらに、必要に応じてカーボンブラツク、ホワイ
トカーボン、ベンガラなどの顔料を１〜５重量
部、金属酸化物、金属炭酸塩、金属硫酸塩などの
充填材を20〜200重量部、老化防止剤として紫外
線吸収剤、酸化防止剤、オゾン劣化防止剤など、
例えばヒンダードアミン系、ヒンダードフエノー
ル系、トリアゾール化合物などを0.5〜２重量
部、強化剤としてポリオール、ポリアミン、ポリ
カルボン酸など、例えばグリセリン、２−エチル
フキサンジオール、３，3′−ジクロロベンジジ
ン、４，4′−メチレン−ビス−２−クロロアニリ
ン、Ｎ，Ｎ−ビス−（２−ヒドロキシプロピル）
アニリンなどを０〜500重量部、硬化触媒として
例えば塩化第一スズ、ジメチル二塩化スズ、トリ
メチルスズヒドロキシド、ジ−ｎ−ブチルスズジ
ラウレート、ジブチルスズアセテート、ナフテン
酸コバルトなどの金属化合物やトリエチルアミ
ン、Ｎ，Ｎ，N′，N′−テトラメチルブタンジア
ミンなどのアミン類を０〜１重量部、発泡剤とし
て例えばトリクロロモノフルオロメタン、ジメチ
レンクロライドなどの有機発泡剤や無機発泡剤を
５〜10重量部、作業性改善剤として例えばアロマ
系伸展油、ナフテン系伸展剤、フタル酸エステ
ル、リン酸エステルなどを０〜300重量部を単独
であるいは適当に組合せて添加することができ
る。 Various types of curing agents can be used for liquid rubber, but diisocyanate compounds are particularly preferred, examples of which include tolylene diisocyanate and 4,4'-diphenylmethane diisocyanate. Curing agent: 5 per 100 parts by weight of liquid rubber
It is suitable to use it in a proportion of ~15 parts by weight.
Furthermore, if necessary, 1 to 5 parts by weight of pigments such as carbon black, white carbon, and red iron oxide, 20 to 200 parts by weight of fillers such as metal oxides, metal carbonates, and metal sulfates, and ultraviolet rays as anti-aging agents. Absorbents, antioxidants, ozone deterioration inhibitors, etc.
For example, 0.5 to 2 parts by weight of hindered amines, hindered phenols, triazole compounds, etc., polyols, polyamines, polycarboxylic acids, etc. as reinforcing agents, such as glycerin, 2-ethyl fuxanediol, 3,3'-dichlorobenzidine, 4 , 4'-methylene-bis-2-chloroaniline, N,N-bis-(2-hydroxypropyl)
0 to 500 parts by weight of aniline, etc., metal compounds such as stannous chloride, dimethyltin dichloride, trimethyltin hydroxide, di-n-butyltin dilaurate, dibutyltin acetate, cobalt naphthenate, triethylamine, N, 0 to 1 part by weight of an amine such as N,N',N'-tetramethylbutanediamine, and 5 to 10 parts by weight of an organic or inorganic blowing agent such as trichloromonofluoromethane or dimethylene chloride as a blowing agent. 0 to 300 parts by weight of aromatic extender oils, naphthenic extenders, phthalate esters, phosphate esters, etc. can be added as workability improving agents, either singly or in appropriate combinations.
環状中空体はチユーブに相当するものであり、
天然ゴムもしくは合成ゴムを素材として常法の成
形手段によつて製造される。本発明では、前述の
ように環状中空体をそのまゝ使用するのではな
く、当該中空体の外周面に糸状または巾３cm以下
の細帯状の補強材料を巻設したものを用いる。
こゝで補強材料としては合成繊維、合成樹脂、炭
素繊維、ガラス繊維などを挙げることができ、環
状中空体の全周面を隙間なく巻きつけてもよく、
あるいはラセン状、網目状、格子状など僅かの隙
間を巻きつけてもよく、特に好ましくは環状中空
体の円周に沿つて平行に巻設するとよい。また、
補強材料の巻設に際しては当該材料の種類、厚さ
等を考慮して一重乃至多重に巻きつければよい。
なお、補強材料を前記中空体に巻設する前もしく
は巻設した後に、当該補強材料に液状ゴムを浸潤
させることが必要であり、この点が本発明の主た
る特色である。 The annular hollow body corresponds to a tube,
Manufactured from natural rubber or synthetic rubber by conventional molding methods. In the present invention, the annular hollow body is not used as is as described above, but a reinforcing material in the form of a thread or a thin strip having a width of 3 cm or less is wound around the outer peripheral surface of the hollow body.
Here, the reinforcing material can include synthetic fibers, synthetic resins, carbon fibers, glass fibers, etc., and may be wrapped around the entire circumference of the annular hollow body without any gaps.
Alternatively, it may be wound in a spiral shape, a mesh shape, a lattice shape, etc. with a slight gap, and it is particularly preferable to wind it in parallel along the circumference of the annular hollow body. Also,
When winding the reinforcing material, the type, thickness, etc. of the material may be considered and the reinforcing material may be wound in a single or multiple layers.
Note that it is necessary to infiltrate the reinforcing material with liquid rubber before or after winding the reinforcing material around the hollow body, and this point is a main feature of the present invention.
このようにして得られた環状中空体２をタイヤ
成形用割型６内に収納し、当該中空体に空気導入
口８より空気を圧入して定形を保持せしめる。次
いで液状ゴムを注入口７より前記割型６内の空間
９に注入する。液状ゴムで空間を充たしたのち一
旦前記中空体内の空気を少量抜出す。しかる後、
注入口７より再び液状ゴムを注入する。次いで前
記中空体内に所定圧力にて空気を再度導入すると
共に、液状ゴムを硬化せしめる。この場合、前記
中空体の外周面には液状ゴムを浸潤させた補強材
料を巻設してあるので、液状ゴムと馴じみ易く、
液状ゴムの硬化の際に両者は一体的に接合され
る。したがつて、第１図に示したように、本発明
に係るタイヤは断面が環状中空体２の外周面にタ
イヤ本体１が一体的に被着した構造を呈する。 The annular hollow body 2 thus obtained is housed in a split mold 6 for tire molding, and air is pressurized into the hollow body through the air inlet 8 to maintain its regular shape. Next, liquid rubber is injected into the space 9 in the split mold 6 through the injection port 7. After filling the space with liquid rubber, a small amount of air inside the hollow body is once removed. After that,
Liquid rubber is again injected from the injection port 7. Next, air is reintroduced into the hollow body at a predetermined pressure, and the liquid rubber is cured. In this case, since the reinforcing material infiltrated with liquid rubber is wound around the outer peripheral surface of the hollow body, it is easily compatible with the liquid rubber.
Both are integrally joined when the liquid rubber hardens. Therefore, as shown in FIG. 1, the tire according to the present invention has a structure in which a tire body 1 is integrally attached to the outer peripheral surface of a hollow body 2 having an annular cross section.
かくしてタイヤの成形を終了した後、環状中空
体内から空気を抜出し、割型を解放してタイヤを
取り出す。 After forming the tire in this way, the air is extracted from the annular hollow body, the split mold is released, and the tire is taken out.
本発明によれば、チユーブに相当する環状中空
体の外周面を補強材料で巻設しているため、当該
中空体が補強されると共に定形性を保持してお
り、タイヤの成形に好都合である。また、補強材
料は予め液状ゴムで浸潤してあるため、タイヤ成
形の際にタイヤ本体と環状中空体との親和性を向
上させることができる。さらに、タイヤ本体は液
状ゴム硬化物であるため、その成形操作を室温で
行なうことが可能であり、実用上すぐれている。
タイヤ製造上の他の特色としては、液状ゴムを注
入した後、一旦環状中空体内の空気を抜出し、さ
らに液状ゴムを注入し、次いで当該中空体内に再
度空気を圧入するため、ボイドをなくして液状ゴ
ムの均一な充填を行ない、均質な液状ゴム硬化物
を得ることができることがあげられる。 According to the present invention, since the outer peripheral surface of the annular hollow body corresponding to the tube is wrapped with a reinforcing material, the hollow body is reinforced and maintains its shape, which is convenient for forming tires. . Furthermore, since the reinforcing material is pre-wetted with liquid rubber, it is possible to improve the compatibility between the tire body and the annular hollow body during tire molding. Furthermore, since the tire body is a cured liquid rubber product, the molding operation can be carried out at room temperature, which is excellent in practice.
Another feature of tire manufacturing is that after injecting liquid rubber, the air inside the annular hollow body is removed, more liquid rubber is injected, and then air is again pressurized into the hollow body. It is possible to uniformly fill the rubber and obtain a homogeneous liquid rubber cured product.
本発明のタイヤは自動車、耕耘機、フオークリ
フト等の車輌用に適しており、使用に際しては環
状中空体内に空気を圧入し所定の空気圧に調整し
て用いる。 The tire of the present invention is suitable for use in vehicles such as automobiles, tillers, and forklifts, and when used, air is pressurized into the annular hollow body and adjusted to a predetermined air pressure.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
実施例
ポリブタジエン系液状ゴム（ポリブタジエンホ
モポリマー、数平均分子量3000、粘度50ポイズ／
30℃、アルコケミカル社製）、液状ゴムに対して
1.2モル％の４，4′−ジフエニルメタンジイソシ
アネートおよび液状ゴムに対し50重量％のカーボ
ンブラツク（ISAF−LS）からなる配合物を用い
て直径0.1mmのナイロン製撚糸を浸潤し、この糸
をブチルゴムで成形した環状中空体（厚さ２mm、
内径35cm、外径64cm）に隙間なく巻きつけた。Example Polybutadiene liquid rubber (polybutadiene homopolymer, number average molecular weight 3000, viscosity 50 poise/
30℃, manufactured by Alco Chemical Co., Ltd.), for liquid rubber
Nylon strands of 0.1 mm diameter were infiltrated with a formulation consisting of 1.2 mol% 4,4'-diphenylmethane diisocyanate and 50% by weight carbon black (ISAF-LS) to liquid rubber. Annular hollow body molded from butyl rubber (thickness 2mm,
(inner diameter 35cm, outer diameter 64cm) without any gaps.
この環状中空体をタイヤ成形用割型内に収納
し、当該中空体内に６Kg／cm2圧まで空気を導入
し、割型内空間に上記と同じ液状ゴム配合物を注
入した。 This annular hollow body was housed in a split mold for tire molding, air was introduced into the hollow body to a pressure of 6 kg/cm 2 , and the same liquid rubber compound as above was injected into the space inside the split mold.
次いで、前記中空体内の空気を一部抜出し、空
気圧を２Kg／cm2にし、さらに上記と同じ液状ゴム
配合物を注入した。しかる後、中空体内に再び空
気を導入して当該中空体内の空気圧を６Kg／cm2と
した。 Next, a portion of the air in the hollow body was extracted, the air pressure was set to 2 Kg/cm 2 , and the same liquid rubber compound as above was injected. Thereafter, air was introduced into the hollow body again to bring the air pressure inside the hollow body to 6 Kg/cm 2 .
その後、120℃で60分間放置し、液状ゴム配合
物を硬化せしめた後、中空体内の空気を脱圧して
所定のタイヤを得た。 Thereafter, the liquid rubber compound was allowed to stand at 120° C. for 60 minutes to cure, and then the air inside the hollow body was depressurized to obtain a specified tire.
第１図は本発明のタイヤの断面構造を示す説明
図、第２図は環状中空体の一部省略正面図、第３
図は本発明の方法によるタイヤの製造法の一態様
を示す概略図である。
１……タイヤ本体、２……環状中空体、３……
トレツド、４……リム、５……補強材料、６……
割型、７……液状ゴム注入口、８……空気導入
口、９……空間。
FIG. 1 is an explanatory diagram showing the cross-sectional structure of the tire of the present invention, FIG. 2 is a partially omitted front view of the annular hollow body, and FIG.
The figure is a schematic diagram showing one embodiment of a method for manufacturing a tire according to the method of the present invention. 1... Tire body, 2... Annular hollow body, 3...
Toread, 4... Rim, 5... Reinforcement material, 6...
Split mold, 7...Liquid rubber injection port, 8...Air introduction port, 9...Space.
Claims (1)
た環状中空体および当該環状中空体の外周面に液
状ゴム硬化物から形成されたタイヤ本体を一体的
に被着してなるタイヤ。 ２ 環状中空体の外周面に、液状ゴムを浸潤させ
た糸状または細帯状補強材料を巻設し、当該中空
体をタイヤ成形用割型内に収納して当該中空体内
に空気を圧入して定形を保持せしめ、次いで前記
割型内の空間に液状ゴムを注入した後、前記中空
体内の空気を一部抜出し、さらに液状ゴムを注入
したのち前記中空体内に再び空気を圧入すると共
に液状ゴムを硬化せしめることを特徴とするタイ
ヤの製造方法。[Scope of Claims] 1. An annular hollow body around which a reinforcing material in the form of threads or strips is wound, and a tire body formed from a cured liquid rubber product integrally attached to the outer circumference of the annular hollow body. A tire. 2 A thread-like or narrow strip-like reinforcing material infiltrated with liquid rubber is wound around the outer peripheral surface of the annular hollow body, the hollow body is housed in a split mold for tire molding, and air is pressurized into the hollow body to shape it. Then, after injecting liquid rubber into the space within the split mold, part of the air in the hollow body is extracted, and after further injecting liquid rubber, air is again pressurized into the hollow body and the liquid rubber is cured. A method for manufacturing a tire, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742679A JPS5613203A (en) | 1979-07-12 | 1979-07-12 | Tyre and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742679A JPS5613203A (en) | 1979-07-12 | 1979-07-12 | Tyre and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5613203A JPS5613203A (en) | 1981-02-09 |
| JPS6210826B2 true JPS6210826B2 (en) | 1987-03-09 |
Family
ID=13914539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8742679A Granted JPS5613203A (en) | 1979-07-12 | 1979-07-12 | Tyre and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5613203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243929U (en) * | 1988-09-17 | 1990-03-27 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS577702A (en) * | 1980-06-16 | 1982-01-14 | Idemitsu Kosan Co Ltd | Tire and manufacturing method thereof |
-
1979
- 1979-07-12 JP JP8742679A patent/JPS5613203A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243929U (en) * | 1988-09-17 | 1990-03-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5613203A (en) | 1981-02-09 |
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