JPH0970903A - Precure tread for regenerated tire and manufacture thereof - Google Patents
Precure tread for regenerated tire and manufacture thereofInfo
- Publication number
- JPH0970903A JPH0970903A JP8135299A JP13529996A JPH0970903A JP H0970903 A JPH0970903 A JP H0970903A JP 8135299 A JP8135299 A JP 8135299A JP 13529996 A JP13529996 A JP 13529996A JP H0970903 A JPH0970903 A JP H0970903A
- Authority
- JP
- Japan
- Prior art keywords
- tread
- molding
- belt
- cure
- protective sheet
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 53
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 7
- 238000004073 vulcanization Methods 0.000 description 14
- 239000004568 cement Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Landscapes
- Tyre Moulding (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、再生タイヤ用プレ
キュアトレッドとその製造方法に関し、さらに詳しくは
再生タイヤの生産性を向上するプレキュアトレッドとそ
の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precure tread for recycled tires and a method for manufacturing the same, and more particularly to a precure tread for improving productivity of recycled tires and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】空気入りタイヤはトレッドの主溝の残溝
深さが１．６ｍｍ以下になると、排水性等が低下して走
行性能の維持が難しくなるので、残溝深さが１．６ｍｍ
になった時点を以て摩耗寿命とされている。しかしなが
ら、本体自体が頑丈に作られているバス、トラック等の
重荷重用タイヤでは、トレッドが摩耗寿命に達しても本
体自体は十分な耐久性を有するため、これを台タイヤと
してトレッドのみを貼り替えて再生タイヤ（又は更生タ
イヤ）として使用するようにしている。2. Description of the Related Art In a pneumatic tire, when the residual groove depth of the main groove of the tread becomes 1.6 mm or less, drainage performance is deteriorated and it becomes difficult to maintain running performance. Therefore, the residual groove depth is 1.6 mm.
The wear life is defined as the point at which the wear reaches. However, for heavy-duty tires such as buses and trucks whose body itself is made sturdy, even if the tread reaches the end of its wear life, the body itself has sufficient durability. And used as a recycled tire (or retreaded tire).
【０００３】再生タイヤの製造方法としては、貼り替え
用のトレッドとして未加硫ゴムを使用する方法と、加硫
済みトレッドすなわちプレキュアトレッド(Precured Tr
ead)を用いる方法とがある。後者のプレキュアトレッド
を使用する方法は、その製造段階において、トレッドが
予め高い圧力をかけた状態で加硫成型される関係上、硬
度が高く良質のトレッド材を得られる上に、台タイヤに
加硫接着する際には、比較的低温で加硫できるので、台
タイヤを傷める度合いが少ないという利点がある。As a method for manufacturing a recycled tire, an unvulcanized rubber is used as a tread for replacement, and a vulcanized tread, that is, a precured tread.
ead). The method of using the latter pre-cure tread, in the manufacturing stage, because the tread is vulcanized and molded under a high pressure in advance, it is possible to obtain a high-quality tread material with high hardness and When vulcanizing and adhering, since vulcanization can be performed at a relatively low temperature, there is an advantage that the degree of damage to the base tire is small.
【０００４】しかし、上記利点を有するプレキュアトレ
ッドを使用する方法にも、以下に説明するような問題点
があり、さらなる改善が要望されている。従来のプレキ
ュアトレッドの製造は、帯状のプレキュアトレッド本体
を加硫成型した後、台タイヤとの接着面にサンダーバフ
処理を施すと共に、バフ粉を完全に取り除き、さらにそ
のバフ面を新鮮に保つために保護用セメントを塗布し、
ポリエチレンシート等のライナーシートを貼った状態に
して、再生タイヤ加工メーカーへ出荷される。However, the method using the precure tread having the above advantages also has the following problems, and further improvement is desired. In the production of conventional pre-cure tread, after vulcanizing and molding the belt-shaped pre-cure tread body, the adhesion surface with the base tire is subjected to Thunder buff treatment, buff powder is completely removed, and the buff surface is kept fresh. In order to apply protective cement,
It is shipped to a manufacturer of recycled tires with a liner sheet such as a polyethylene sheet attached.
【０００５】しかし、上記サンダーバフ処理や、その後
に行なう保護用セメントの塗布とライナーシートの貼り
付け作業は手間と時間がかかり、またサンダーバフ処理
によって発生したバフ粉は作業環境を悪化させるという
問題があった。また、プレキュアトレッド本体のショル
ダー部表面は、サンダーバフ等のバフ処理をすることが
難しいことから、そのままの状態で再生タイヤの製造に
使用されている。However, there is a problem that the above-mentioned thunder buff treatment and the subsequent application of protective cement and sticking of the liner sheet are troublesome and time-consuming, and the buff powder generated by the thunder buff treatment deteriorates the working environment. It was Further, since it is difficult to perform buffing such as a thunder buff on the surface of the shoulder portion of the pre-cure tread body, it is used as it is for manufacturing a recycled tire.
【０００６】しかし、再生タイヤを製造するとき、台タ
イヤとプレキュアトレッドとの間に塗布した接着用未加
硫ゴムが一部浸出して、プレキュアトレッドのショルダ
ー部表面を被覆するが、上記のようにショルダー部に対
する被覆ゴムの接着力が低いため、走行中に剥離し、場
合によっては剥離が台タイヤのショルダー部更生面にま
で成長することがあった。However, when a recycled tire is manufactured, the unvulcanized rubber for adhesion applied between the base tire and the precure tread partially leaches to cover the shoulder surface of the precure tread. As described above, since the adhesive force of the covering rubber to the shoulder portion is low, peeling may occur during traveling, and in some cases, peeling may grow up to the retreaded surface of the shoulder portion of the base tire.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、帯状
トレッド本体の台タイヤに対する接着表面へのサンダー
バフ処理作業及びバフ粉の除去作業を不要にし、かつバ
フ粉による環境悪化を起こさないようにするプレキュア
トレッド及びその製造方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the need for a sandbuffing operation and a buffing powder removing operation on an adhesive surface of a belt-shaped tread body to a base tire, and to prevent environmental deterioration due to the buffing powder. To provide a precure tread and a method for producing the same.
【０００８】本発明の他の目的は、サンダーバフ処理作
業を不要にするばかりでなく、バフ面保護用セメントの
塗布とライナーシートの貼着作業を不要にするプレキュ
アトレッド及びその製造方法を提供することにある。本
発明のさらなる目的は、プレキュアトレッドのショルダ
ー部表面に浸出した被覆ゴムの剥離を防止するようにし
たプレキュアトレッドおよびその製造方法を提供するこ
とにある。Another object of the present invention is to provide a pre-cure tread and a method for producing the same, which not only eliminates the need for a sander buff treatment operation, but also eliminates the need for applying a cement for buff surface protection and attaching a liner sheet. Especially. A further object of the present invention is to provide a precure tread which prevents peeling of the coated rubber leached on the surface of the shoulder portion of the precure tread, and a method for producing the same.
【０００９】[0009]
【課題を解決するための手段】上記第１の目的を達成す
るための本発明の再生タイヤ用プレキュアトレッドは、
帯状トレッド本体の台タイヤに対する接着表面に、微細
な凹凸の成形粗面を形成し、該成形粗面に保護シートが
剥離可能に一体に接着されてなることを特徴とするもの
である。The precure tread for recycled tires of the present invention for achieving the above first object comprises:
It is characterized in that a molding rough surface having fine irregularities is formed on a bonding surface of a belt-shaped tread body to a base tire, and a protective sheet is releasably integrally bonded to the molding rough surface.
【００１０】上記第１及び第２の目的を達成する本発明
の再生タイヤ用プレキュアトレッドは、上記構成のプレ
キュアトレッドにおいて、前記保護シートの前記帯状ト
レッド本体に対する接着側表面に微細な凹凸の成形粗面
を形成し、該保護シートの成形粗面により前記帯状トレ
ッド本体側の成形粗面が付型されてなることを特徴とす
るものである。The precure tread for recycled tires of the present invention which achieves the above first and second objects is the precure tread of the above-mentioned constitution, in which fine irregularities are formed on the surface of the protective sheet on the side of the belt-shaped tread which is adhered to the main body. A molding rough surface is formed, and the molding rough surface of the belt-shaped tread body is shaped by the molding rough surface of the protective sheet.
【００１１】また、このプレキュアトレッドの製造方法
は、金型成形面の台タイヤに対する接着表面部に、微細
な凹凸からなる成形粗面を有する保護シートを挿入し、
該金型に未加硫ゴムを充填して前記保護シートと一体に
プレキュアトレッドを成形することを特徴とするもので
ある。上記第３の目的を達成する本発明の再生タイヤ用
プレキュアトレッドは、帯状トレッド本体の台タイヤに
対する接着面に、微細な凹凸粗面を設けると共に、両シ
ョルダー部表面に、微細な凹凸の成型粗面を形成したこ
とを特徴とするものである。Further, in this method for producing a pre-cure tread, a protective sheet having a molding rough surface made up of fine irregularities is inserted into a bonding surface portion of a mold molding surface to a base tire,
The mold is filled with unvulcanized rubber to form a precure tread integrally with the protective sheet. The pre-cure tread for recycled tires of the present invention that achieves the third object is provided with a finely roughened rough surface on the adhesive surface of the belt-shaped tread body to the base tire, and at the same time, molded with fine unevenness on both shoulder surface. It is characterized in that a rough surface is formed.
【００１２】また、このプレキュアトレッドの製造方法
は、金型成形面の少なくともショルダー部に、微細な凹
凸面を有するプレートを交換自在に取り付け、該金型に
未加硫ゴムを充填してプレキュアトレッドを成形するこ
とを特徴とするものである。上記のように本発明のプレ
キュアトレッドは、帯状トレッド本体の台タイヤに対す
る接着面に設ける微細な凹凸をバフ面に替えて、本体の
加硫成形時に同時に出来る成形粗面にしたので、サンダ
ーバフ作業やバフ粉の除去作業を行う必要がなくなる。
またその成形粗面を保護シートに設けた成形粗面から転
写するようにトレッド本体の加硫成形と同時に一体に成
形した場合には、バフ面保護用セメントの塗布やライナ
ーシートの貼着作業を不要にすることができる。Further, in this method for producing a pre-cure tread, a plate having a fine uneven surface is replaceably attached to at least a shoulder portion of a molding surface of the mold, and the mold is filled with unvulcanized rubber. It is characterized by molding a cure tread. As described above, the precure tread of the present invention is a rough surface that can be formed at the same time during vulcanization molding of the main body by changing the fine unevenness provided on the adhesive surface of the belt-shaped tread body to the base tire to the buff surface, so that the sand buffing work It is no longer necessary to remove buff powder.
If the molded rough surface is integrally molded at the same time as the vulcanization molding of the tread body so as to be transferred from the rough molded surface provided on the protective sheet, it is necessary to apply the cement for buff surface protection and stick the liner sheet. It can be unnecessary.
【００１３】また、帯状トレッド本体のショルダー部表
面に微細な凹凸の成形粗面を形成したプレキュアトレッ
ドでは、台タイヤとプレキュアトレッドとの間から浸出
したゴムのショルダー面に対する接着力を強固にするこ
とができる。また、プレキュアトレッドの製造方法で
は、金型成形面に、微細な凹凸を有するプレートを交換
自在に取り付けることにより、プレキュアトレッド側に
成形粗面を形成するようにしているので、凹凸部の摩耗
に対して局部的にプレートを交換するのみで凹凸を更新
することができ、生産性の向上ならびに金型コストの低
減に寄与することができる。Further, in the precure tread in which the surface of the shoulder portion of the belt-shaped tread body is formed with fine irregularities, the adhesion force of the rubber leached between the base tire and the precure tread to the shoulder surface is strengthened. can do. Further, in the method of manufacturing the precure tread, the mold molding surface is replaceably attached with a plate having fine unevenness so as to form a molding rough surface on the precure tread side. The unevenness can be renewed only by locally exchanging the plate against abrasion, which can contribute to improvement of productivity and reduction of die cost.
【００１４】[0014]
【発明の実施の形態】以下、図に示す実施形態にもとづ
いて本発明を具体的に説明する。図１（ａ）、（ｂ）は
本発明のプレキュアトレッドの一例を示すものである。
プレキュアトレッド１０は、帯状トレッド本体１と保護
シート２とから構成されている。帯状トレッド本体１
は、その断面がほぼ台形状をしており、保護シート２の
反対側の上面にはトレッドパターンを形成する溝３が設
けられている。保護シート２は、帯状トレッド本体１の
台タイヤに対する接着側である下面全面に一体に貼り合
わされている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on an embodiment shown in the drawings. 1 (a) and 1 (b) show an example of the precure tread of the present invention.
The precure tread 10 includes a belt-shaped tread body 1 and a protective sheet 2. Belt-shaped tread body 1
Has a substantially trapezoidal cross section, and a groove 3 forming a tread pattern is provided on the upper surface opposite to the protective sheet 2. The protective sheet 2 is integrally bonded to the entire lower surface of the belt-shaped tread body 1 which is the bonding side of the base tire.
【００１５】保護シート２の帯状トレッド本体１への貼
り合わせ面には、微細な凹凸からなる成形粗面４が形成
されている。したがって、図１（ｂ）に示すように保護
シート２をプレキュアトレッド１０から剥離すると、帯
状トレッド本体１の下面には保護シート２の成形粗面４
から転写された微細な凹凸の成形粗面５が現れるように
なっている。On the surface of the protective sheet 2 bonded to the belt-shaped tread body 1, a molding rough surface 4 having fine irregularities is formed. Therefore, when the protective sheet 2 is peeled off from the precure tread 10 as shown in FIG. 1B, the rough surface 4 of the protective sheet 2 is formed on the lower surface of the belt-shaped tread body 1.
The molded rough surface 5 having fine unevenness transferred from the above appears.
【００１６】図２は図１（ｂ）に示した帯状トレッド本
体１の貼り合わせ面に形成された成形粗面５を拡大して
示すものである。帯状トレッド本体１の下面に現れる成
形粗面５としては、例えば、平面に多数の凹部６が設け
られた形状とすれば良く、この凹部６は、その深さＸが
１．０±０．４ｍｍ、ピッチＹが１．０±０．５ｍｍ、
幅Ｚが０．４±０．２ｍｍのように形成すれば良い。FIG. 2 is an enlarged view of the rough molding surface 5 formed on the bonding surface of the belt-shaped tread body 1 shown in FIG. 1 (b). The molding rough surface 5 that appears on the lower surface of the belt-shaped tread body 1 may have, for example, a shape in which a large number of concave portions 6 are provided on a flat surface, and the concave portion 6 has a depth X of 1.0 ± 0.4 mm. , Pitch Y is 1.0 ± 0.5 mm,
It may be formed so that the width Z is 0.4 ± 0.2 mm.
【００１７】図３は、図１（ａ）、（ｂ）で説明したプ
レキュアトレッド１０を製造する際に用いるプレキュア
トレッド加硫成型用金型３０の構成と、この金型３０内
に挿入される保護シート２の構成を示す斜視説明図であ
る。プレキュアトレッド加硫成型用金型３０は、下型３
１と上型３２に別れており、下型３１の底部には、タイ
ヤのトレッドパターンを成型するトレッドパターン成型
用溝３３が形成されている。FIG. 3 shows the structure of the precure tread vulcanization molding die 30 used when manufacturing the precure tread 10 described in FIGS. 1 (a) and 1 (b), and is inserted into the die 30. It is a perspective explanatory view showing a configuration of the protective sheet 2 to be. The precure tread vulcanization molding die 30 is a lower die 3
1 and an upper mold 32, and a tread pattern molding groove 33 for molding a tread pattern of a tire is formed in the bottom of the lower mold 31.
【００１８】保護シート２は、軟化点が加硫温度下に軟
化変形することのない温度を有する耐熱性材料からな
り、好ましくは２００℃以上の耐熱性を有するシートが
使用される。具体的には樹脂シートが使用され、特にポ
リエチレンテレフタレートフィルムが好ましい。この保
護シート２の表面には、前述のように凹凸の成形粗面４
が設けられている。このような保護シート２としては、
例えば、図４（ａ）に示すように、その厚さＷが１．５
±０．５ｍｍとすることが好ましく、また、成形粗面４
は、高さＸが１．０±０．４ｍｍ、太さＺが０．４±
０．２ｍｍ、ピッチＹが１．０±０．５ｍｍの突起部７
によって形成することが好ましい。The protective sheet 2 is made of a heat-resistant material having a softening point at which it does not soften and deform at the vulcanization temperature, and a sheet having a heat resistance of 200 ° C. or higher is preferably used. Specifically, a resin sheet is used, and a polyethylene terephthalate film is particularly preferable. As described above, the surface of the protective sheet 2 has the roughened surface 4 having the irregularities.
Is provided. As such a protective sheet 2,
For example, as shown in FIG. 4A, the thickness W is 1.5
± 0.5 mm is preferable, and molding rough surface 4
Has a height X of 1.0 ± 0.4 mm and a thickness Z of 0.4 ±
Projection 7 with 0.2 mm and pitch Y of 1.0 ± 0.5 mm
Is preferably formed by.
【００１９】図４（ｂ）は、図３に示すような構造のプ
レキュアトレッド加硫成型用金型３０を使用して、プレ
キュアトレッド１０を製造する様子を示す説明図であ
る。プレキュアトレッド１０の製造に際しては、まず、
プレキュアトレッド加硫成型用金型３０の下型３１内に
未加硫ゴムを入れ、その上に全表面に亘って微細な成形
粗面４を設けた保護シート２を、その成形粗面４が未加
硫ゴムに接するように配置し、ついで上型３２を被せて
金型３０を固定し、しかる後、この保護シート２が配置
された未加硫ゴムを保護シート２と共に加熱して加硫す
ることにより、プレキュアトレッド１０を得ることがで
きる。FIG. 4 (b) is an explanatory view showing how the precure tread 10 is manufactured using the precure tread vulcanization molding die 30 having the structure shown in FIG. When manufacturing the precure tread 10, first,
An unvulcanized rubber is put in the lower mold 31 of the precure tread vulcanization molding die 30, and a protective sheet 2 having a fine molding rough surface 4 provided on the entire surface thereof is used. Is placed in contact with the unvulcanized rubber, and then the upper mold 32 is covered to fix the mold 30. Thereafter, the unvulcanized rubber on which the protective sheet 2 is arranged is heated together with the protective sheet 2 to be added. The precure tread 10 can be obtained by sulfurization.
【００２０】このようにして製造されたプレキュアトレ
ッド１０は、図１（ｂ）に示したように、保護シート２
が下面に貼り合わされたままの状態である。従って、台
タイヤに貼り付けるまで、この保護シート２が貼り合わ
されたままの状態で保管しておけば、この保護シート２
によって台タイヤへの接着面を新鮮な状態に保持するこ
とができる。The precure tread 10 produced in this manner is used as a protective sheet 2 as shown in FIG. 1 (b).
Is still attached to the lower surface. Therefore, if the protective sheet 2 is stored in a state of being stuck to it until it is stuck to the base tire,
This makes it possible to keep the adhesive surface to the base tire fresh.
【００２１】保護シート２は、図４（ｃ）に示すよう
に、プレキュアトレッド１０を台タイヤに貼り付ける直
前に剥がせば良く、保護シート２を剥がした後の帯状ト
レッド本体１の下面には前述したような成形粗面５が現
れるので、帯状トレッド本体１の台タイヤへの接着面に
対して、従来のようにサンダーバフ加工をする必要がな
く、帯状トレッド本体１の台タイヤへの接着面にそのま
ま接着用セメントを塗布すればよい。As shown in FIG. 4 (c), the protective sheet 2 may be peeled off immediately before the precure tread 10 is attached to the base tire, and the protective sheet 2 may be attached to the lower surface of the belt-shaped tread body 1 after the protective sheet 2 is peeled off. Since the molding rough surface 5 as described above appears, it is not necessary to perform the thunder buffing on the bonding surface of the belt-shaped tread body 1 to the base tire unlike the conventional case, and the bonding of the belt-shaped tread body 1 to the base tire is performed. The cement may be applied directly to the surface.
【００２２】また、保護シート２は、加硫温度下に軟化
変形しない耐熱性シートであって反復使用に耐える耐久
性をも有するので、プレキュアトレッド１０から剥がし
た後も再度利用が可能であるため、プレキュアトレッド
の製造コストを大幅に下げることができる。上述したプ
レキュアトレッドの構成において、さらに帯状トレッド
本体のショルダー部表面に同様の微細な凹凸の成形粗面
を形成することが望ましい。The protective sheet 2 is a heat-resistant sheet that does not soften and deform under the vulcanization temperature and has durability to withstand repeated use, so that it can be reused even after being peeled off from the precure tread 10. Therefore, the manufacturing cost of the precure tread can be significantly reduced. In the configuration of the precure tread described above, it is desirable to further form a similar molding rough surface having fine irregularities on the surface of the shoulder portion of the belt-shaped tread body.
【００２３】図５（ａ）、（ｂ）は、本発明のプレキュ
アトレッドの他の実施形態を示すものである。図５
（ａ）、（ｂ）において、プレキュアトレッド１０ａの
帯状トレッド本体１ａは、その断面がほぼ台形状をして
おり、その上面にはトレッドパターンを形成する溝３ａ
が設けられている。また、前述した実施形態と同様に帯
状トレッド本体１ａの台タイヤに対する接着面（下面）
に微細な凹凸の成形粗面５ｂが形成されている上に、さ
らにショルダー部３４の表面にも微細な凹凸の成形粗面
５ａが形成されている。成形粗面５ａ、５ｂの形状は、
例えば、前述した図２に示すような多数の凹部６が設け
られた形状とすれば良い。FIGS. 5A and 5B show another embodiment of the precure tread of the present invention. FIG.
In (a) and (b), the belt-shaped tread body 1a of the precure tread 10a has a substantially trapezoidal cross section, and a groove 3a forming a tread pattern on the upper surface thereof.
Is provided. Further, similar to the above-described embodiment, the adhesive surface (bottom surface) of the belt-shaped tread body 1a to the base tire.
In addition to the finely formed rough surface 5b having irregularities, the rough surface 5a having fine irregularities is also formed on the surface of the shoulder portion 34. The shapes of the rough molding surfaces 5a and 5b are
For example, it may have a shape provided with a large number of recesses 6 as shown in FIG.
【００２４】このように帯状トレッド本体１ａのショル
ダー部３４の表面に微細な凹凸の成形粗面５ａを形成し
たので、台タイヤとプレキュアトレッドとの間から浸出
したゴムのショルダー面に対する接着力を強固にするこ
とができる。上記プレキュアトレッド１０ａは、図６に
示すような成形用金型によって、加硫成形することがで
きる。Since the molded rough surface 5a having fine irregularities is formed on the surface of the shoulder portion 34 of the belt-shaped tread body 1a in this manner, the adhesive force of the rubber leached from between the base tire and the precure tread to the shoulder surface is increased. Can be strong. The precure tread 10a can be vulcanized and molded by using a molding die as shown in FIG.
【００２５】図６において、成形用金型３０ａは、上型
３２ａと下型３１ａとからなっており、下型３１ａの金
型成形面のショルダー部には、表面に微細な凹凸面を有
するプレート３８がビス３７によって交換自在に取り付
けられている。また、上型３２ａの金型成形面の台タイ
ヤに対する接着部には、表面に凹凸を有するプレート３
６が、ビス３７によって交換自在に取り付けられてい
る。In FIG. 6, a molding die 30a is composed of an upper die 32a and a lower die 31a, and a plate having a fine uneven surface on the shoulder portion of the die molding surface of the lower die 31a. 38 are attached by screws 37 so as to be exchangeable. In addition, a plate 3 having an uneven surface is formed at the bonding portion of the upper die 32a on the die molding surface with respect to the base tire.
6 is attached by screws 37 so as to be exchangeable.
【００２６】プレート３６、３８は、ステンレス等の金
属や樹脂からできており、その表面に設ける微細な凹凸
面は、例えば前述した図４（ａ）に示すような突起部７
を有する形状を有している。また、凹凸面を形成する突
起部７は、円錐状、角錐状のいずれであってもよく、そ
の配列は長手方向、幅方向、斜めの方向いずれの方向で
あってもよい。また、網目、波状、エンボス等の模様で
あってもよい。The plates 36 and 38 are made of metal such as stainless steel or resin, and the fine uneven surface provided on the surface thereof has, for example, the protrusion 7 as shown in FIG.
Has a shape with. Further, the protrusions 7 forming the uneven surface may have a conical shape or a pyramidal shape, and the arrangement thereof may be any of the longitudinal direction, the width direction, and the oblique direction. Further, it may have a mesh, wavy, embossed, or other pattern.
【００２７】このような成形用金型に未加硫ゴムを充填
して加硫成形することにより、図５（ａ）、（ｂ）に示
すようなプレキュアトレッドを加硫成形することができ
る。上述した成形用金型に設けたプレート３６、３８
は、ビス３７によって交換自在に取り付けられているの
で、摩耗や汚れが生じたときには、簡単に新しいプレー
トと交換することができ、段取り替えの時間を大幅に節
約することができる。By filling an unvulcanized rubber in such a molding die and vulcanizing and molding, a precure tread as shown in FIGS. 5 (a) and 5 (b) can be vulcanized and molded. . Plates 36 and 38 provided on the above-mentioned molding die
Since they are attached by screws 37 so that they can be exchanged, they can be easily replaced with new plates when they become worn or dirty, and the time required for setup change can be greatly saved.
【００２８】図７は、上述した本発明のプレキュアトレ
ッド１０、１０ａを使用した再生タイヤの製造方法の一
例を示す。まず、図７（ｂ）に示すように、摩耗寿命に
なった使用済みのタイヤ２０のトレッド部をバフし、一
点鎖線Ｂより外側の部分にある残存トレッドゴムを取り
除き、図７（ｃ）に示すような台タイヤ２２を作る。FIG. 7 shows an example of a method for manufacturing a recycled tire using the above-mentioned precure treads 10 and 10a of the present invention. First, as shown in FIG. 7B, the tread portion of the used tire 20 that has reached the end of its wear life is buffed to remove the residual tread rubber outside the one-dot chain line B. A base tire 22 as shown is made.
【００２９】他方、図７（ａ）に示すように、プレキュ
アトレッド１０から保護シート２を剥離し、図７（ｄ）
のように、貼り付け面に成形粗面５が形成された帯状ト
レッド本体１を得る。次いで、保護シート２を剥がした
帯状トレッド本体１の成形粗面５を、接着用セメント
（未加硫ゴム）２４を介して、台タイヤ２２のトレッド
該当部２３に貼り付ける。On the other hand, as shown in FIG. 7 (a), the protective sheet 2 is peeled off from the precure tread 10, and as shown in FIG. 7 (d).
As described above, the strip-shaped tread body 1 having the molding rough surface 5 formed on the attachment surface is obtained. Next, the molded rough surface 5 of the strip-shaped tread body 1 from which the protective sheet 2 has been peeled off is attached to the tread corresponding portion 23 of the base tire 22 via the adhesive cement (unvulcanized rubber) 24.
【００３０】最後に図７（ｅ）のように、上記のように
帯状トレッド本体１を貼り付けた台タイヤ２２をエンベ
ロープ１１で覆い、台タイヤ２２の内部にチューブ１２
を挿入した後に開口部をリム１３で蓋をする。そして、
エンベロープ１１とリム１３で覆われたプレキュアトレ
ッド本体１を貼り付けた台タイヤ２２を加硫缶１４の中
に入れ、チューブ１２内に空気を送り込んでタイヤを正
常な形に膨らませた後に、スチームと高圧空気によって
温度と圧力を加え、帯状トレッド本体１を貼り付けた台
タイヤ２２を比較的低い温度で加硫接着する。Finally, as shown in FIG. 7E, the base tire 22 to which the strip-shaped tread body 1 is attached as described above is covered with the envelope 11, and the tube 12 is placed inside the base tire 22.
After inserting, the opening is covered with the rim 13. And
The base tire 22 to which the precure tread body 1 covered with the envelope 11 and the rim 13 is attached is put in the vulcanization can 14, and air is sent into the tube 12 to inflate the tire into a normal shape, and then steam. The temperature and pressure are applied by high pressure air to vulcanize and bond the base tire 22 to which the belt-shaped tread body 1 is attached at a relatively low temperature.
【００３１】図８は、前述した方法によって製造された
再生タイヤの半断面図を示すもので、プレキュアトレッ
ド１０（１０ａ）と台タイヤ２２との貼り合わせ面の接
着セメント（未加硫ゴム）２４の一部が、加硫中に外側
に浸出し、プレキュアトレッド１０（１０ａ）と台タイ
ヤとのショルダー部表面を被覆した状態になる。上述し
た再生タイヤの製造方法において、本発明のプレキュア
トレッド１０（１０ａ）は、台タイヤ２２に対する貼り
付け面の幅を台タイヤ２２のトレッド該当部の幅より狭
く設定すると良い。このように、プレキュアトレッド１
０（１０ａ）の幅を狭くすることにより、外側に浸出し
た接着用のゴムが、プレキュアトレッド側のショルダー
部の表面側に大きな厚さになって被覆されるので、さら
に接着力を強固にすることができる。FIG. 8 is a half cross-sectional view of a recycled tire manufactured by the above-mentioned method, showing an adhesive cement (unvulcanized rubber) on the bonding surface between the precure tread 10 (10a) and the base tire 22. A part of 24 leaches to the outside during vulcanization and covers the shoulder surface of the precure tread 10 (10a) and the base tire. In the above-described method for manufacturing a recycled tire, in the precure tread 10 (10a) of the present invention, the width of the attachment surface of the base tire 22 may be set narrower than the width of the tread corresponding portion of the base tire 22. In this way, Precure Tread 1
By narrowing the width of 0 (10a), the adhesive rubber leached to the outside is covered with a large thickness on the surface side of the shoulder portion on the precure tread side, so that the adhesive force is further strengthened. can do.
【００３２】[0032]
実施例１ 図１（ａ）、（ｂ）の形態のプレキュアトレッド１０
と、従来のプレキュアトレッドとから、それぞれ再生タ
イヤを製造した時の接着力、生産性等を評価し、その結
果を表１に示した。評価結果は、従来のプレキュアトレ
ッドを１００とする指数で示した。Example 1 Precure tread 10 in the form of FIGS. 1 (a) and 1 (b)
And the conventional pre-cure tread were used to evaluate the adhesive strength, productivity, etc. when manufacturing recycled tires, and the results are shown in Table 1. The evaluation results are shown by an index with the conventional precure tread as 100.
【００３３】 [0033]
【００３４】表１の結果から、本発明のプレキュアトレ
ッドを使用した再生タイヤは、加硫時間が少し長く、保
護シートの単価が少し高いが、この保護シートを再利用
するためコストが大幅に低下し、総合的には従来品に比
べて約２０％の工数の削減効果がある。From the results shown in Table 1, the recycled tire using the precure tread of the present invention has a slightly longer vulcanization time and a slightly higher unit price of the protective sheet, but the cost is remarkably increased because the protective sheet is reused. There is an overall effect of reducing man-hours by about 20% compared to conventional products.
【００３５】実施例２ 図５（ａ）、（ｂ）の形態のプレキュアトレッド１０ａ
と従来のプレキュアトレッドとから、それぞれ再生タイ
ヤを製造した時の接着力、生産性等を評価し、その結果
を表２に示した。評価結果は従来のプレキュアトレッド
を１００とする指数で示した。Example 2 Precure tread 10a in the form of FIGS. 5 (a) and 5 (b)
Adhesive strength, productivity, etc., at the time of manufacturing recycled tires were evaluated from the above and conventional precure tread, and the results are shown in Table 2. The evaluation results are shown by an index with the conventional precure tread as 100.
【００３６】 表２の結果から、本発明のプレキュアトレッドを使用し
た再生タイヤは、ショルダー部に浸出した接着用ゴムと
ショルダー面との接着力が向上していることが分かる。[0036] From the results in Table 2, it can be seen that the recycled tire using the precure tread of the present invention has an improved adhesive force between the adhesive rubber leached in the shoulder portion and the shoulder surface.
【００３７】[0037]
【発明の効果】以上説明したように、本発明のプレキュ
アトレッドによれば、帯状トレッド本体の台タイヤに対
する接着面に設ける微細な凹凸をバフ面に替えて、本体
の加硫成形時に同時に出来る成形粗面にしたので、サン
ダーバフ作業やバフ粉の除去作業を行う必要がなくな
る。また、その成形粗面を保護シートに設けた成形粗面
から転写するようにトレッド本体の加硫成形と同時に一
体に成形した場合には、バフ面保護用セメントの塗布や
ライナーシートの貼着作業を不要にすることができる。As described above, according to the precure tread of the present invention, the fine unevenness provided on the adhesive surface of the belt-shaped tread body to the base tire can be changed to the buff surface at the same time when the body is vulcanized and molded. Since the molding has a rough surface, it is not necessary to perform a sander buff operation or a buff powder removal operation. If the molded rough surface is integrally molded at the same time as the vulcanization molding of the tread body so that it is transferred from the rough molded surface provided on the protective sheet, application of cement for buff surface protection and sticking of liner sheet Can be eliminated.
【００３８】また、帯状トレッド本体のショルダー部表
面に微細な凹凸の成形粗面を形成したので、台タイヤと
プレキュアトレッドとの間から浸出したゴムのショルダ
ー面に対する接着力を強固にすることができる。また、
プレキュアトレッドの製造方法では、金型成形面に、微
細な凹凸を有するプレートを交換自在に取り付けること
により、プレキュアトレッド側に成形粗面を形成するよ
うにしているので、凹凸部の摩耗に対して局部的にプレ
ートを交換するのみで凹凸を更新することができ、生産
性の向上ならびに金型コストの低減に寄与することがで
きる。Further, since the molded rough surface having fine irregularities is formed on the surface of the shoulder portion of the belt-shaped tread body, the adhesive force of the rubber leached between the base tire and the precure tread to the shoulder surface can be strengthened. it can. Also,
In the method of manufacturing the precure tread, the mold forming surface is formed by forming a rough surface on the precure tread side by exchanging a plate having fine unevenness so that the uneven surface is not worn. On the other hand, the unevenness can be renewed only by locally exchanging the plate, which can contribute to improvement of productivity and reduction of die cost.
【図１】（ａ）は本発明のプレキュアトレッドの一例を
示す斜視図、（ｂ）は（ａ）のプレキュアトレッドの縱
断面分解図である。FIG. 1A is a perspective view showing an example of the precure tread of the present invention, and FIG. 1B is an exploded cross-sectional view of the precure tread of FIG.
【図２】図１（ｂ）のＡ部の拡大図である。FIG. 2 is an enlarged view of a portion A of FIG.
【図３】本発明のプレキュアトレッドを製造する金型の
構成を説明する斜視説明図である。FIG. 3 is a perspective explanatory view illustrating a configuration of a mold for producing the precure tread of the present invention.
【図４】（ａ）は本発明のプレキュアトレッドに使用さ
れる保護シートの一部分の断面拡大説明図であり、
（ｂ）は図３に示した金型を使用してプレキュアトレッ
ドを製造する様子を示す断面説明図、（ｃ）はプレキュ
アトレッドから保護シートを剥がす状態を示す説明図で
ある。FIG. 4A is an enlarged cross-sectional explanatory view of a part of a protective sheet used in the precure tread of the present invention,
(B) is sectional explanatory drawing which shows a mode that a precure tread is manufactured using the metal mold | die shown in FIG. 3, (c) is explanatory drawing which shows the state which removes a protective sheet from a precure tread.
【図５】（ａ）は本発明の他の実施形態からなるプレキ
ュアトレッドの一例を示す斜視図、（ｂ）は（ａ）のプ
レキュアトレッドの縦断面図である。5A is a perspective view showing an example of a precure tread according to another embodiment of the present invention, and FIG. 5B is a vertical sectional view of the precure tread of FIG.
【図６】図５のプレキュアトレッドの成形用金型の縦断
面図である。FIG. 6 is a vertical cross-sectional view of a molding die of the precure tread of FIG.
【図７】（ａ）〜（ｅ）は本発明のプレキュアトレッド
を使用する再生タイヤの製造方法を説明する工程図であ
る。7 (a) to 7 (e) are process charts for explaining a method for manufacturing a recycled tire using the precure tread of the present invention.
【図８】図７の工程で作られた再生タイヤの半断面図で
ある。FIG. 8 is a half sectional view of a recycled tire manufactured by the process of FIG.
１ 帯状トレッド本体 ２ 保護シート ３
溝 ４ 成形粗面 ５、５ａ、５ｂ 成形粗面 ６ 凹部 ７
突起部 １０、１０ａ プレキュアトレッド ３０、３０ａ プレキュアトレッド加硫成型用金型 ３４ ショルダー部 ３６、３８ プレート ３
７ ビス1 Belt-shaped tread body 2 Protective sheet 3
Groove 4 Rough forming surface 5, 5a, 5b Rough forming surface 6 Recessed portion 7
Projection part 10, 10a Precure tread 30, 30a Precure tread vulcanization molding mold 34 Shoulder part 36, 38 Plate 3
7 screws
Claims (10)
着表面に、微細な凹凸の成形粗面を形成し、該成形粗面
に保護シートが剥離可能に一体に接着されてなる再生タ
イヤ用プレキュアトレッド。1. A pre-cure tread for recycled tires, wherein a molded rough surface having fine irregularities is formed on an adhesive surface of a belt-shaped tread body to a base tire, and a protective sheet is removably integrally bonded to the molded rough surface. .
に対する接着側表面に微細な凹凸の成形粗面を形成し、
該保護シートの成形粗面により前記帯状トレッド本体側
の成形粗面が付型されてなる請求項１に記載の再生タイ
ヤ用プレキュアトレッド。2. A molding rough surface having fine irregularities is formed on a surface of the protective sheet which is adhered to the belt-shaped tread body.
The pre-cure tread for a recycled tire according to claim 1, wherein the molding rough surface of the protective sheet is shaped on the molding rough surface on the side of the belt-shaped tread body.
面に、微細な凹凸の成形粗面を形成した請求項１または
２に記載の再生タイヤ用プレキュアトレッド。3. The pre-cure tread for a recycled tire according to claim 1, wherein a molded rough surface having fine irregularities is formed on a surface of a shoulder portion of the belt-shaped tread body.
項１〜３のいずれか１項に記載の再生タイヤ用プレキュ
アトレッド。4. The pre-cure tread for a recycled tire according to claim 1, wherein the protective sheet is a resin sheet.
着面に微細な凹凸粗面を設ける共に、両ショルダー部表
面に、微細な凹凸の成形粗面を形成した再生タイヤ用プ
レキュアトレッド。5. A pre-cure tread for recycled tires, wherein a finely roughened rough surface is provided on an adhesive surface of a belt-shaped tread body to a base tire, and finely roughened rough surfaces are formed on both shoulder surfaces.
る接着面の凹凸粗面が成形粗面である請求項５に記載の
再生タイヤ用プレキュアトレッド。6. The pre-cure tread for a recycled tire according to claim 5, wherein the uneven rough surface of the adhesive surface of the belt-shaped tread body to the base tire is a molding rough surface.
部に、微細な凹凸の成形粗面を有する保護シートを挿入
し、該金型に未加硫ゴムを充填して前記保護シートと一
体にプレキュアトレッドを成形する再生タイヤ用プレキ
ュアトレッドの製造方法。7. A protective sheet having a finely rough molding rough surface is inserted into the surface of the molding surface of the mold that is bonded to the base tire, and the mold is filled with unvulcanized rubber to be integrated with the protection sheet. A method for producing a pre-cure tread for a recycled tire, which comprises forming a pre-cure tread on a sheet.
凹凸面を有するプレートを交換自在に取り付けた金型を
使用する請求項７に記載の再生タイヤ用プレキュアトレ
ッドの製造方法。8. The method for producing a pre-cure tread for a recycled tire according to claim 7, wherein a mold having a plate having a fine uneven surface is exchangeably attached to a shoulder portion of the mold molding surface.
に、微細な凹凸面を有するプレートを交換自在に取り付
け、該金型に未加硫ゴムを充填してプレキュアトレッド
を成形する再生タイヤ用プレキュアトレッドの製造方
法。9. A pre-recycled tire preform for molding a pre-cure tread by mounting a plate having a fine uneven surface on at least a shoulder portion of a molding surface of the mold so that the plate can be filled with unvulcanized rubber. Cure tread manufacturing method.
着表面部に、微細な凹凸面を有するプレートを交換自在
に取り付けた請求項９に記載の再生タイヤ用プレキュア
トレッドの製造方法。10. The method for producing a pre-cure tread for a recycled tire according to claim 9, wherein a plate having a fine uneven surface is replaceably attached to an adhesion surface portion of the die molding surface to the base tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8135299A JPH0970903A (en) | 1995-06-26 | 1996-05-29 | Precure tread for regenerated tire and manufacture thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15957095 | 1995-06-26 | ||
| JP7-159570 | 1995-06-26 | ||
| JP8135299A JPH0970903A (en) | 1995-06-26 | 1996-05-29 | Precure tread for regenerated tire and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0970903A true JPH0970903A (en) | 1997-03-18 |
Family
ID=26469175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8135299A Pending JPH0970903A (en) | 1995-06-26 | 1996-05-29 | Precure tread for regenerated tire and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0970903A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002192912A (en) * | 2000-12-26 | 2002-07-10 | Bridgestone Corp | Precure tread and regenerated tire with precure tread |
| WO2008066527A1 (en) * | 2006-11-29 | 2008-06-05 | Societe De Technologie Michelin | Mold having elements for sole side of tread, method of using mold and tread |
| EP2199110A2 (en) | 2008-12-18 | 2010-06-23 | The Goodyear Tire & Rubber Company | Retreaded tire and methods of preparation |
| EP2199109A2 (en) | 2008-12-18 | 2010-06-23 | The Goodyear Tire & Rubber Company | Tire tread strip and methods of preparation |
| JP2010173614A (en) * | 2009-02-02 | 2010-08-12 | Yokohama Rubber Co Ltd:The | Precure tread and retreaded tire using the same |
| JP2011207165A (en) * | 2010-03-30 | 2011-10-20 | Bridgestone Corp | Method of manufacturing tire, and tire |
| US20120090767A1 (en) * | 2009-03-17 | 2012-04-19 | Bridgestone Corporation | Tyre production method and system |
| JP2012171299A (en) * | 2011-02-23 | 2012-09-10 | Bridgestone Corp | Method for manufacturing base tire |
| JP2012176539A (en) * | 2011-02-25 | 2012-09-13 | Bridgestone Corp | Method of manufacturing precure tread |
| WO2012134428A3 (en) * | 2010-01-29 | 2013-01-17 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
| WO2013011888A1 (en) | 2011-07-15 | 2013-01-24 | 株式会社ブリヂストン | Vulcanized tread, and tire |
| JP2013014214A (en) * | 2011-07-04 | 2013-01-24 | Yokohama Rubber Co Ltd:The | Precure tread, retreaded tire and method of manufacturing the same |
| JP2013018143A (en) * | 2011-07-08 | 2013-01-31 | Bridgestone Corp | Method for producing pre-cured tread, mold for vulcanizing/molding pre-cured tread, and tire |
| CN103391855A (en) * | 2011-02-25 | 2013-11-13 | 株式会社普利司通 | Tire, tread for retread tire, method for manufacturing same, retread tire comprising tread, and method for manufacturing same |
| WO2013179792A1 (en) | 2012-05-31 | 2013-12-05 | 住友ゴム工業株式会社 | Device for mounting tread ring on base tire, and method for producing retread tire |
| US20150083306A1 (en) * | 2012-03-30 | 2015-03-26 | Michelin Recherche Et Technique S.A. | Tire treads with reduced undertread thickness |
| JP2016052790A (en) * | 2011-10-26 | 2016-04-14 | ブリヂストン バンダッグ リミティッド ライアビリティ カンパニーＢｒｉｄｇｅｓｔｏｎｅ Ｂａｎｄａｇ， ＬＬＣ． | Molded article die-cutter and method |
| US10363715B2 (en) * | 2012-10-31 | 2019-07-30 | Compagnie Generale Des Etablissements Michelin | Methods and apparatus for making retreaded tires |
| KR102336315B1 (en) | 2020-08-10 | 2021-12-14 | 주식회사 삼우이엔아이 | Regenerating tire producing device |
-
1996
- 1996-05-29 JP JP8135299A patent/JPH0970903A/en active Pending
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002192912A (en) * | 2000-12-26 | 2002-07-10 | Bridgestone Corp | Precure tread and regenerated tire with precure tread |
| WO2008066527A1 (en) * | 2006-11-29 | 2008-06-05 | Societe De Technologie Michelin | Mold having elements for sole side of tread, method of using mold and tread |
| US8277589B2 (en) | 2006-11-29 | 2012-10-02 | Michelin Recherche Et Technique S.A. | Method of retreading a tire |
| US20100154946A1 (en) * | 2008-12-18 | 2010-06-24 | Ramendra Nath Majumdar | Tire tread strip and method of preparation |
| US20130146189A1 (en) * | 2008-12-18 | 2013-06-13 | Ramendra Nath Majumdar | Retreaded tire and method of preparation |
| EP2199109A3 (en) * | 2008-12-18 | 2010-09-08 | The Goodyear Tire & Rubber Company | Tire tread strip and methods of preparation |
| EP2199110A3 (en) * | 2008-12-18 | 2010-09-08 | The Goodyear Tire & Rubber Company | Retreaded tire and methods of preparation |
| EP2199109A2 (en) | 2008-12-18 | 2010-06-23 | The Goodyear Tire & Rubber Company | Tire tread strip and methods of preparation |
| US20120186725A1 (en) * | 2008-12-18 | 2012-07-26 | Ramendra Nath Majumdar | Tire tread strip and method of preparation |
| EP2199110A2 (en) | 2008-12-18 | 2010-06-23 | The Goodyear Tire & Rubber Company | Retreaded tire and methods of preparation |
| JP2010173614A (en) * | 2009-02-02 | 2010-08-12 | Yokohama Rubber Co Ltd:The | Precure tread and retreaded tire using the same |
| US20120090767A1 (en) * | 2009-03-17 | 2012-04-19 | Bridgestone Corporation | Tyre production method and system |
| US8820375B2 (en) | 2010-01-29 | 2014-09-02 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
| AU2011356587B2 (en) * | 2010-01-29 | 2014-08-14 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
| WO2012134428A3 (en) * | 2010-01-29 | 2013-01-17 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
| US8357254B2 (en) | 2010-01-29 | 2013-01-22 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
| JP2011207165A (en) * | 2010-03-30 | 2011-10-20 | Bridgestone Corp | Method of manufacturing tire, and tire |
| JP2012171299A (en) * | 2011-02-23 | 2012-09-10 | Bridgestone Corp | Method for manufacturing base tire |
| EP2679408B1 (en) * | 2011-02-25 | 2020-04-01 | Bridgestone Corporation | Method for manufacturing a retread tire and method for manufacturing a tread for a retread tire |
| CN103391855A (en) * | 2011-02-25 | 2013-11-13 | 株式会社普利司通 | Tire, tread for retread tire, method for manufacturing same, retread tire comprising tread, and method for manufacturing same |
| US20130323486A1 (en) * | 2011-02-25 | 2013-12-05 | Bridgestone Corporation | Tire, tread for retread tire, method for manufacturing the tread for retread tire, retread tire having the tread for retread tire, and method for manufacturing the retread tire |
| US10059070B2 (en) | 2011-02-25 | 2018-08-28 | Bridgestone Corporation | Tire, tread for retread tire, method for manufacturing the tread for retread tire, retread tire having the tread for retread tire, and method for manufacturing the retread tire |
| JP2012176539A (en) * | 2011-02-25 | 2012-09-13 | Bridgestone Corp | Method of manufacturing precure tread |
| JP2013014214A (en) * | 2011-07-04 | 2013-01-24 | Yokohama Rubber Co Ltd:The | Precure tread, retreaded tire and method of manufacturing the same |
| JP2013018143A (en) * | 2011-07-08 | 2013-01-31 | Bridgestone Corp | Method for producing pre-cured tread, mold for vulcanizing/molding pre-cured tread, and tire |
| US9994076B2 (en) | 2011-07-15 | 2018-06-12 | Bridgestone Corporation | Cured tread and tire |
| US10076934B2 (en) | 2011-07-15 | 2018-09-18 | Bridgestone Corporation | Cured tread and tire |
| WO2013011888A1 (en) | 2011-07-15 | 2013-01-24 | 株式会社ブリヂストン | Vulcanized tread, and tire |
| JP2016052790A (en) * | 2011-10-26 | 2016-04-14 | ブリヂストン バンダッグ リミティッド ライアビリティ カンパニーＢｒｉｄｇｅｓｔｏｎｅ Ｂａｎｄａｇ， ＬＬＣ． | Molded article die-cutter and method |
| US20150083306A1 (en) * | 2012-03-30 | 2015-03-26 | Michelin Recherche Et Technique S.A. | Tire treads with reduced undertread thickness |
| US9987813B2 (en) | 2012-05-31 | 2018-06-05 | Sumitomo Rubber Industries, Ltd. | Apparatus for mounting tread ring on tire base and method for manufacturing retreaded tire |
| KR20150027074A (en) | 2012-05-31 | 2015-03-11 | 스미토모 고무 고교 가부시키가이샤 | Device for mounting tread ring on base tire, and method for producing retread tire |
| WO2013179792A1 (en) | 2012-05-31 | 2013-12-05 | 住友ゴム工業株式会社 | Device for mounting tread ring on base tire, and method for producing retread tire |
| US10363715B2 (en) * | 2012-10-31 | 2019-07-30 | Compagnie Generale Des Etablissements Michelin | Methods and apparatus for making retreaded tires |
| KR102336315B1 (en) | 2020-08-10 | 2021-12-14 | 주식회사 삼우이엔아이 | Regenerating tire producing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0970903A (en) | Precure tread for regenerated tire and manufacture thereof | |
| US8277589B2 (en) | Method of retreading a tire | |
| EP2086736B1 (en) | Tread for a retreaded tire, mould for a tread and retreaded tire | |
| JP2012531348A (en) | Retread tire with tread band aligned with base tread | |
| JP2901404B2 (en) | Replacement tread | |
| EP2448751B1 (en) | Retreaded tire method for its manufacture | |
| US20070006954A1 (en) | Pneumatic tire and mold for the tire | |
| JP2012531349A (en) | Lightweight precure tread band for retread tires | |
| EP0333889B1 (en) | Method and apparatus for replacing sidewall and tread rubber of tire | |
| JP5308906B2 (en) | Method of sticking members to the tire inner surface | |
| EP2448772A1 (en) | Tread band for retreaded tire | |
| JPH10129216A (en) | Precure tread and recapped tire | |
| JP3138404B2 (en) | Method for manufacturing retreaded tires for trucks and buses | |
| JPH05116235A (en) | Buff processing method for precured tread and its device | |
| JPH07246665A (en) | Production of reclaimed tire | |
| JP2002192912A (en) | Precure tread and regenerated tire with precure tread | |
| JPH11207831A (en) | Belt material for reclaimed tire and its production | |
| JP2014177071A (en) | Tire manufacturing method | |
| JPH0317670B2 (en) | ||
| JPS61239938A (en) | Preparation of retreaded tire | |
| JP3084207B2 (en) | Solid tire manufacturing method | |
| JP3091678B2 (en) | Solid tire manufacturing method | |
| USRE27006E (en) | Method of building a lugged tread on a heavy duty tirm | |
| WO2021248214A1 (en) | Method for retreading heavy-duty vehicle tires | |
| JP2001294019A (en) | Precure tread for retreaded tire and its manufacturing method |