JP2001018609A - Self sealing tire and manufacture thereof - Google Patents
Self sealing tire and manufacture thereofInfo
- Publication number
- JP2001018609A JP2001018609A JP11190251A JP19025199A JP2001018609A JP 2001018609 A JP2001018609 A JP 2001018609A JP 11190251 A JP11190251 A JP 11190251A JP 19025199 A JP19025199 A JP 19025199A JP 2001018609 A JP2001018609 A JP 2001018609A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- sealing
- sealing material
- self
- adhesive
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
- B29D2030/0686—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
- B29D2030/0694—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in the form of one or more narrow strips, e.g. applied by winding into the interior of the tyre
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Testing Of Balance (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セルフシールタイ
ヤ及びその製造方法に関し、さらに詳しくは、パンク防
止用の密封層を設けると同時に、該密封層を利用してタ
イヤ重量の動的バランスを改善したセルフシールタイヤ
及び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 self-sealing tire and a method of manufacturing the same, and more particularly, to providing a sealing layer for preventing puncture and improving the dynamic balance of tire weight by using the sealing layer. And a method of manufacturing the same.
【０００２】[0002]
【従来の技術】空気入りタイヤのトレッド部に対応する
内周面に、粘着性のゴム組成物からなる密封層を内貼り
することにより、クギ踏み等をしたときに空気の漏洩を
防止するようにしたセルフシールタイヤが知られてい
る。2. Description of the Related Art A sealing layer made of an adhesive rubber composition is internally applied to an inner peripheral surface corresponding to a tread portion of a pneumatic tire to prevent air leakage when a nail is stepped on. Known self-sealing tires are known.
【０００３】このようなタイヤの製造方法としては、粘
着性のゴム組成物をタイヤ内側にスプレーする方法と、
テープ状の粘着性密封材をタイヤ周方向に螺旋状に貼り
付ける方法とがある。しかし、前者はノズルの目詰まり
を起こしやすいため、操業安定性の点からは後者の方が
有利とされている。しかしながら、後者の製造方法はテ
ープ状の密封材の始端と終端をオーバーラップさせるよ
うにするため、そのオーバーラップ箇所がタイヤ周方向
及び幅方向に重量のバラツキを生じやすく、動的バラン
スを悪化させるという問題があった。[0003] As a method for producing such a tire, there are a method of spraying an adhesive rubber composition on the inside of the tire,
There is a method in which a tape-shaped adhesive sealing material is spirally attached in the tire circumferential direction. However, the former is liable to cause clogging of the nozzle, and therefore the latter is more advantageous from the viewpoint of operational stability. However, in the latter manufacturing method, the start and the end of the tape-shaped sealing material are overlapped, so that the overlapping portion is likely to cause weight variation in the tire circumferential direction and the width direction, thereby deteriorating the dynamic balance. There was a problem.
【０００４】特開昭５８−９３６１２号公報は、上記問
題の対策として、始端と終端のオーバーラップをタイヤ
周方向において相対的に軽い箇所で行なうようにした方
法を提案している。しかし、この方法は重量調整できる
位置が１箇所に限られており、広い範囲にわたって木目
の細かい調整をすることができないという問題があっ
た。Japanese Patent Application Laid-Open No. 58-93612 proposes a method for solving the above-mentioned problem in which the start and end overlaps are made at relatively light places in the tire circumferential direction. However, this method has a problem that the position at which the weight can be adjusted is limited to one location, and fine adjustment of the grain cannot be performed over a wide range.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、テー
プ状の粘着性密封材を貼り付けて密封層を形成すると同
時に、重量バランスを広範囲に木目細かく調整可能にし
たセルフシールタイヤ及びその製造方法を提供すること
にある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a self-sealing tire in which a tape-shaped adhesive sealing material is adhered to form a sealing layer and the weight balance can be finely adjusted over a wide range and at the same time. It is to provide a method.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決する本発
明のセルフシールタイヤは、少なくともトレッド部に対
応するタイヤ内周面に、テープ状の粘着性密封材を連続
的に螺旋状に貼り付けて密封層を形成したセルフシール
タイヤであって、前記粘着性密封材の厚さ及び／または
幅を、タイヤ周方向及び幅方向の重量変化に応じて変化
させ、タイヤ重量の動的アンバランス量が修正されて均
一化されたことを特徴とするものである。According to the self-sealing tire of the present invention which solves the above-mentioned problems, a tape-shaped adhesive sealing material is continuously spirally attached to at least the inner peripheral surface of the tire corresponding to the tread portion. A self-sealing tire having a sealing layer formed thereon, wherein a thickness and / or a width of the adhesive sealing material is changed according to a weight change in a tire circumferential direction and a width direction, and a dynamic unbalance amount of the tire weight is obtained. Has been corrected and made uniform.
【０００７】また、本発明のセルフシールタイヤの製造
方法は、少なくともトレッド部に対応するタイヤ内周面
に、テープ状の粘着性密封材を連続的に螺旋状に貼り付
けて密封層を形成するに際し、タイヤ重量の動的アンバ
ランス量を測定し、該測定結果に基づき、前記動的アン
バランス量を修正する部分に対応する位置に、前記粘着
性密封材の厚さ及び／または幅を調整して貼り付け、前
記動的アンバランス量を均一化することを特徴とするも
のである。Further, according to the method for producing a self-sealing tire of the present invention, a tape-shaped adhesive sealing material is continuously and spirally attached to at least the inner peripheral surface of the tire corresponding to the tread portion to form a sealing layer. At this time, the dynamic unbalance amount of the tire weight is measured, and based on the measurement result, the thickness and / or width of the adhesive sealing material is adjusted to a position corresponding to the portion where the dynamic imbalance amount is corrected. Then, the dynamic unbalance amount is made uniform.
【０００８】本発明によれば、上述のようにテープ状の
粘着性密封材をタイヤ内周面に螺旋状に貼り付けて密封
層を形成する際、タイヤ重量の動的アンバランス量を修
正する部分に対応する位置に、タイヤ周方向及び幅方向
の重量変化に応じて粘着性密封材の厚さ及び／または幅
を調整して貼り付けるため、タイヤ内周面におけるどの
部分であっても重量を調整することができ、タイヤの重
量バランスを広い範囲で木目細かく調整することが可能
である。According to the present invention, when the tape-shaped adhesive sealing material is spirally stuck on the inner peripheral surface of the tire to form a sealing layer, the dynamic imbalance of the tire weight is corrected. Adjusting the thickness and / or width of the adhesive sealing material according to weight changes in the circumferential direction and width direction of the tire at the position corresponding to the portion, and attaching the adhesive sealing material to any portion on the inner circumferential surface of the tire. Can be adjusted, and the weight balance of the tire can be finely adjusted in a wide range.
【０００９】[0009]
【発明の実施の形態】以下、本発明を、図に示す実施形
態に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.
【００１０】図１及び図２は、本発明のセルフシールタ
イヤの密封層を形成する装置の一例を示し、空気入りタ
イヤ１の内周面２に粘着性密封材３を貼り付ける内貼り
装置４と、空気入りタイヤ１を固定して回転させるとと
もに軸方向に移動させる駆動装置５とを備えている。FIG. 1 and FIG. 2 show an example of an apparatus for forming a sealing layer of a self-sealing tire according to the present invention, and an inner applying apparatus 4 for applying an adhesive sealing material 3 to an inner peripheral surface 2 of a pneumatic tire 1. And a driving device 5 that fixes and rotates the pneumatic tire 1 and moves the tire in the axial direction.
【００１１】前記内貼り装置４は、押出機４ａと、タイ
ヤ内周面２に粘着性密封材３をテープ状に供給するノズ
ル４ｂと、供給された粘着性密封材３を押圧してタイヤ
内周面２に貼りつける押圧ローラ４ｃから構成され、押
圧ローラ４ｃとタイヤ内周面２との間隔が調整可能にな
っている。The inner applicator 4 includes an extruder 4a, a nozzle 4b for supplying the adhesive sealing material 3 to the inner peripheral surface 2 of the tire in a tape shape, and a pressing device for supplying the adhesive sealing material 3 to the tire. The pressure roller 4c is attached to the peripheral surface 2, and the distance between the pressure roller 4c and the tire inner peripheral surface 2 can be adjusted.
【００１２】前記駆動装置５の駆動軸５ａには、空気入
りタイヤ１の左右のビード部６、６をそれぞれ係止し、
駆動軸５ａの回転により空気入りタイヤ１を回転駆動す
る係止具７ａ、７ｂが取付けられている。係止具７ａ、
７ｂは、空気入りタイヤ１の内側に、内貼り装置４のノ
ズル４ｂと押圧ローラ４ｃとを挿入可能に左右のビード
部６、６を開口させるように構成されている。さらに、
これらに対応するタイヤ外側に、内周面１ｓの粘着性密
封材３の貼り付け位置を平らにするようにトレッド部８
を支える支持ローラ９が配置されている。係止具７ａ、
７ｂ及び支持ローラ９は、タイヤ軸方向に平行に移動可
能になっている。The left and right bead portions 6 of the pneumatic tire 1 are locked to a drive shaft 5a of the drive device 5, respectively.
Locking members 7a and 7b that rotate the pneumatic tire 1 by rotation of the drive shaft 5a are attached. Locking device 7a,
7b is configured to open the left and right bead portions 6 and 6 inside the pneumatic tire 1 so that the nozzle 4b and the pressing roller 4c of the inner coating device 4 can be inserted. further,
The tread portion 8 is arranged on the outer side of the tire corresponding to these so that the adhesive sealing material 3 on the inner peripheral surface 1s is attached at a flat position.
A support roller 9 for supporting the roller is disposed. Locking device 7a,
7b and the support roller 9 are movable in parallel to the tire axial direction.
【００１３】内貼り装置４を制御する制御装置１１は、
マイクロコンピュータから構成され、図示しないバラン
サーにより測定された動的アンバランス量の測定データ
を入力でき、かつ、測定データに基づいて内貼り装置４
の押出機４ａと押圧ローラ４ｃとを、ノズル４ｂから吐
出する粘着性密封材３の吐出量及びタイヤ内周面２に貼
り付ける厚さを変化させるように制御するようになって
いる。The control device 11 for controlling the inner pasting device 4 comprises:
It is composed of a microcomputer, and can input measurement data of a dynamic imbalance amount measured by a balancer (not shown).
The extruder 4a and the pressing roller 4c are controlled so as to change the amount of the adhesive sealing material 3 discharged from the nozzle 4b and the thickness of the extruder 4a and the pressure applied to the tire inner peripheral surface 2.
【００１４】上述した装置を用いて、本発明のセルフシ
ールタイヤを製造するには、まず、加硫工程で成形され
た空気入りタイヤ１のタイヤ重量の動的アンバランス量
を、タイヤ内周面２を洗浄後、図示しないバランサーで
測定する。測定では、空気入りタイヤ１のタイヤ周方向
の回転角度及びタイヤ幅方向の位置に対応する重量変化
のデータが得られる。この測定データは、直接、あるい
は一旦記憶媒体等に保存して、内貼り装置４の制御装置
１１に転送される。In order to manufacture the self-sealing tire of the present invention using the above-described apparatus, first, the dynamic imbalance amount of the tire weight of the pneumatic tire 1 formed in the vulcanization step is determined by measuring the tire inner peripheral surface. After washing No. 2, measurement is made with a balancer (not shown). In the measurement, weight change data corresponding to the rotation angle of the pneumatic tire 1 in the tire circumferential direction and the position in the tire width direction are obtained. This measurement data is transferred directly or temporarily stored in a storage medium or the like to the control device 11 of the inner pasting device 4.
【００１５】次に、動的アンバランス量を測定した空気
入りタイヤ１を、内貼り装置４に移送して、固定具７
ａ、７ｂによりビード部６、６を係止して、図１のよう
にセットする。Next, the pneumatic tire 1 for which the dynamic unbalance amount has been measured is transferred to the inner lining device 4 and the fixing device 7 is mounted thereon.
The beads 6, 6 are locked by a, 7b and set as shown in FIG.
【００１６】そして、駆動部５を駆動し、空気入りタイ
ヤ１を回転させながら、粘着性密封材３を押出機４ａか
ら押出してノズル４ｂから供給し、押圧ローラ４ｃによ
り押圧して、連続的にタイヤ内周面２に螺旋状に貼り付
ける。Then, while the driving unit 5 is driven to rotate the pneumatic tire 1, the adhesive sealing material 3 is extruded from the extruder 4a and supplied from the nozzle 4b, and is continuously pressed by the pressing roller 4c. It is spirally attached to the inner peripheral surface 2 of the tire.
【００１７】制御装置１１は、前記動的アンバランス量
の測定データに基づき、内周面１ｓにおける動的アンバ
ランス量の修正位置及び修正に必要な重量を求め、タイ
ヤ回転角度及び幅方向の位置に対応する押出機４ａの吐
出量及び押圧ローラ４ｃの変位量を演算し、それぞれ押
出機４ａと押圧ローラ４ｃとに制御信号を出力する。The control device 11 calculates the corrected position of the dynamic imbalance amount and the weight required for the correction on the inner peripheral surface 1s based on the measurement data of the dynamic imbalance amount, and calculates the tire rotation angle and the width direction position. The displacement of the extruder 4a and the displacement of the pressing roller 4c corresponding to the above are calculated, and control signals are output to the extruder 4a and the pressing roller 4c, respectively.
【００１８】この制御信号に応じ、タイヤ重量の動的ア
ンバランス量の修正位置では、動的バランスを均一化す
るように、粘着性密封材３の厚さを、軽量の箇所には厚
くし、重量の大きい箇所には薄くするように変化させて
貼り付け、タイヤ内周面２に密封層１２を形成する。In response to the control signal, at the position where the dynamic unbalance amount of the tire weight is corrected, the thickness of the adhesive sealing material 3 is increased at a lightweight portion so as to make the dynamic balance uniform. The sealing layer 12 is formed on the inner peripheral surface 2 of the tire by changing the thickness so as to be thinner at a portion where the weight is large.
【００１９】上記のようにしてセルフシールタイヤを製
造すると、単に一箇所で重量調整するのではなく、タイ
ヤ内周面におけるどの部分であっても、タイヤ周方向及
び幅方向の重量変化に応じて粘着性密封材３の厚さを変
化させて調整することができるため、木目細かく調整す
ることができる。そのため、このようにして得られた本
発明のセルフシールタイヤは、優れた動的バランスを備
えることができる。When the self-sealing tire is manufactured as described above, the weight is not simply adjusted at one place, but is adjusted according to the weight change in the tire circumferential direction and the width direction at any part on the inner circumferential surface of the tire. Since the thickness can be adjusted by changing the thickness of the adhesive sealing material 3, the grain can be finely adjusted. Therefore, the self-sealing tire of the present invention thus obtained can have excellent dynamic balance.
【００２０】上記の製造方法において、密封層１２の形
成時には、トレッド部８に対応するタイヤ内周面２全面
に一度に連続して粘着性密封材３を貼り付けてもよい
が、好ましくは、タイヤ内周面２の両側部２ｓに、動的
アンバランス量の測定結果に基づいて粘着性密封材３の
厚さを調整して貼り付け、その後、動的アンバランス量
を再測定し、その再測定結果に基づいて粘着性密封材３
の厚さを調整し、その粘着性密封材３をタイヤ内周面２
の両側部２ｓ、２ｓの内側の中間域２ｃに貼り付けて、
密封層１２を形成するのが好適である。In the above-described manufacturing method, when the sealing layer 12 is formed, the adhesive sealing material 3 may be continuously and simultaneously attached to the entire surface of the tire inner peripheral surface 2 corresponding to the tread portion 8, but preferably, The thickness of the adhesive sealing material 3 is adjusted and attached to both sides 2s of the tire inner peripheral surface 2 based on the measurement result of the dynamic unbalance amount, and then the dynamic unbalance amount is measured again. Adhesive sealing material 3 based on re-measurement results
The thickness of the tire is adjusted, and the adhesive sealing material 3 is applied to the tire inner peripheral surface 2.
Affixed to the middle area 2c inside both sides 2s, 2s of
Preferably, a sealing layer 12 is formed.
【００２１】このようにして密封層１２を形成すると、
両側部２ｓ、２ｓで動的アンバランス量をほぼ修正でき
るため、中間域２ｃで微調整を行なって動的バランスを
一層均一化した空気入りタイヤが得られる。なお、両側
部２ｓ、２ｓの粘着性密封材３により動的アンバランス
量が実質的に均一化できた場合には、中間域２ｃでは一
定厚さの粘着性密封材３を貼り付ければよい。When the sealing layer 12 is formed in this manner,
Since the dynamic unbalance amount can be substantially corrected in the two side portions 2s and 2s, a fine adjustment is performed in the intermediate region 2c to obtain a pneumatic tire with more uniform dynamic balance. When the amount of dynamic imbalance can be substantially uniformized by the adhesive sealing materials 3 on both sides 2s and 2s, the adhesive sealing material 3 having a constant thickness may be attached to the intermediate region 2c.
【００２２】また、上記では、粘着性密封材３の厚さを
変化させてタイヤ重量の動的アンバランス量を修正して
いるが、粘着性密封材３の幅を変化させてもよく、厚さ
と幅の両方を変化させてもよく、上記と同様に動的アン
バランス量を修正することができる。In the above description, the dynamic unbalance amount of the tire weight is corrected by changing the thickness of the adhesive sealing material 3. However, the width of the adhesive sealing material 3 may be changed. Both the width and the width may be changed, and the dynamic imbalance amount can be corrected in the same manner as described above.
【００２３】本発明のセルフシールタイヤは、さらに下
記のような構成を備えることにより一層性能の向上を図
ることができる。The performance of the self-sealing tire of the present invention can be further improved by providing the following structure.
【００２４】すなわち、セルフシールタイヤ１３に貼り
付けた密封層１２のうち、両側部１２ｓに貼り付ける粘
着性密封材３ｂを、両側部１２ｓの内側の中間域１２ｃ
に貼り付ける粘着性密封材３ａよりも高粘度にするとよ
い。このように両側部１２ｓの粘着性密封材３の粘度を
高くすることにより、走行時の遠心力による中間域側へ
の流動を防止する。That is, of the sealing layer 12 adhered to the self-sealing tire 13, the adhesive sealing material 3b adhered to both sides 12s is applied to the intermediate region 12c inside the both sides 12s.
It is preferable that the viscosity be higher than that of the adhesive sealing material 3a to be adhered to the substrate. In this way, by increasing the viscosity of the adhesive sealing material 3 on both sides 12s, the flow to the intermediate region side due to the centrifugal force during traveling is prevented.
【００２５】これにより、走行時に密封層１２の両側部
１２ｓが薄くなりすぎて、セルフシール性能を低下させ
たり、さらに、流動による重量分布の変化によるタイヤ
の重量バランスを悪化させることがない。Accordingly, the side portions 12s of the sealing layer 12 do not become too thin during running, so that the self-sealing performance is not deteriorated and the weight balance of the tire is not deteriorated due to a change in the weight distribution due to the flow.
【００２６】上記効果のため、両側部１２ｓに貼り付け
る粘着性密封材３ｂのムーニー粘度は２５〜４０とし、
両側部１２ｓの内側の中間域１２ｃに貼り付ける粘着性
密封材３ａのムーニー粘度は１０〜２５にするとよい。Due to the above effects, the Mooney viscosity of the adhesive sealing material 3b applied to both sides 12s is set to 25-40.
The Mooney viscosity of the adhesive sealing material 3a attached to the intermediate region 12c inside the both sides 12s is preferably set to 10 to 25.
【００２７】また、上述の高粘度の粘着性密封材３ｂを
貼り付ける両側部は、タイヤ子午線方向断面におけるタ
イヤ内周面２に対する接線がタイヤ回転軸方向に対して
１０°以上である領域にすることが好ましい。The both sides where the above-mentioned high-viscosity adhesive sealing material 3b is attached are regions where the tangent to the tire inner peripheral surface 2 in the tire meridian section is 10 ° or more with respect to the tire rotation axis direction. Is preferred.
【００２８】本発明において、上述した密封層１２を設
ける領域は、トレッド部８のベルト層１４のエッジ１４
ｅに対応する位置からタイヤ内周面２に沿って５ｍｍ以
上外側まで延長させることが好ましい。In the present invention, the area where the sealing layer 12 is provided is the edge 14 of the belt layer 14 of the tread portion 8.
It is preferable to extend from the position corresponding to e to 5 mm or more outside along the tire inner peripheral surface 2.
【００２９】本発明で使用する粘着性密封材としては、
特に制限されるものではなく、従来から使用されている
公知のものがいずれも採用可能である。例えば、未加硫
あるいは半加硫状態のブチルゴムに、ポリイソブチレ
ン、ポリブテン等からなる可塑剤、熱可塑性オレフィン
／ジオレフィン共重合体等からなる粘着性付与剤及びカ
ーボンブラック等からなる補強材を配合した組成物など
を使用することができる。The adhesive sealing material used in the present invention includes:
There is no particular limitation, and any known ones conventionally used can be adopted. For example, an unvulcanized or semi-vulcanized butyl rubber is mixed with a plasticizer made of polyisobutylene, polybutene, a tackifier made of a thermoplastic olefin / diolefin copolymer or the like, and a reinforcing material made of carbon black or the like. A composition or the like can be used.
【００３０】テープ状の粘着性密封材の幅及び厚さは、
特に制限されるものではないが、８〜２０ｍｍの幅及び
３〜５ｍｍの厚さが好ましい。The width and thickness of the tape-shaped adhesive sealing material are as follows:
Although not particularly limited, a width of 8 to 20 mm and a thickness of 3 to 5 mm are preferable.
【００３１】[0031]
【発明の効果】以上詳述の通り、テープ状の粘着性密封
材をタイヤ内周面に螺旋状に貼り付けて密封層を形成す
る際、タイヤ重量の動的アンバランス量を修正する部分
に対応する位置に、タイヤ周方向及び幅方向の重量変化
に応じ、粘着性密封材の厚さ及び／または幅を調整して
貼り付けるため、タイヤ内周面におけるどの部分であっ
ても重量を調整することができ、タイヤの重量バランス
を広い範囲で木目細かく調整することが可能である。As described above in detail, when a tape-shaped adhesive sealing material is spirally stuck on the inner peripheral surface of a tire to form a sealing layer, the dynamic weight imbalance of the tire is corrected. Adjust the thickness and / or width of the adhesive sealant according to the weight change in the tire circumferential direction and width direction at the corresponding position, and adjust the weight of any part of the tire inner circumferential surface. It is possible to finely adjust the weight balance of the tire over a wide range.
【図１】本発明のセルフシールタイヤを製造する密封層
形成装置の一例を示す説明図である。FIG. 1 is an explanatory view showing an example of a sealing layer forming apparatus for producing a self-sealing tire of the present invention.
【図２】図１の密封層形成装置の貼り付け部の拡大図で
ある。FIG. 2 is an enlarged view of a sticking portion of the sealing layer forming device of FIG.
【図３】本発明の実施形態のセルフシールタイヤの子午
線方向半断面図である。FIG. 3 is a meridional half-sectional view of the self-sealing tire according to the embodiment of the present invention.
１ 空気入りタイヤ ２ タイヤ内周面 ２ｓ 側部 ２ｃ 中間域 ３ 粘着性密封材 ４ 内貼り装置 ４ａ 押出機 ４ｂ ノズル ４ｃ 押圧ローラ ８ トレッド部 １２ 密封層 １２ｓ 両側部 １２ｅ エッジ １３ セルフシールタイヤ １４ ベルト層 １４ｅ エッジ DESCRIPTION OF SYMBOLS 1 Pneumatic tire 2 Tire inner peripheral surface 2s Side 2c Intermediate area 3 Adhesive sealing material 4 Inner coating device 4a Extruder 4b Nozzle 4c Press roller 8 Tread portion 12 Seal layer 12s Both side portions 12e Edge 13 Self-sealing tire 14 Belt layer 14e edge
───────────────────────────────────────────────────── フロントページの続き (72)発明者 尾ノ井 秀一 神奈川県平塚市追分２番１号 横浜ゴム株 式会社平塚製造所内 Ｆターム(参考） 4F212 AH20 AP01 AR12 VA16 VC02 VC03 VL32 VQ04 VQ14 4F213 AH20 AP01 AR12 WA06 WA95 WB01 WF23 WM37 WM39 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shuichi Onoi 2-1 Oiwake, Hiratsuka-shi, Kanagawa F-term in Yokohama Rubber Co., Ltd. Hiratsuka Works 4F212 AH20 AP01 AR12 VA16 VC02 VC03 VL32 VQ04 VQ14 4F213 AH20 AP01 AR12 WA06 WA95 WB01 WF23 WM37 WM39
Claims (7)
内周面に、テープ状の粘着性密封材を連続的に螺旋状に
貼り付けて密封層を形成したセルフシールタイヤであっ
て、前記粘着性密封材の厚さ及び／または幅を、タイヤ
周方向及び幅方向の重量変化に応じて変化させ、タイヤ
重量の動的アンバランス量が修正されて均一化されたセ
ルフシールタイヤ。1. A self-sealing tire in which a sealing layer is formed by continuously adhering a tape-shaped adhesive sealing material in a spiral shape to at least an inner peripheral surface of a tire corresponding to a tread portion, wherein the adhesive sealing A self-sealing tire in which the thickness and / or width of a material is changed in accordance with weight changes in a tire circumferential direction and a width direction, and a dynamic unbalance amount of a tire weight is corrected to be uniform.
粘着性密封材の粘度を、該両側部の内側の中間域に貼り
付けた粘着性密封材よりも高粘度にした請求項１に記載
のセルフシールタイヤ。2. The adhesive sealant applied to both sides of the inner peripheral surface of the tire has a higher viscosity than the adhesive sealant applied to an intermediate region inside the both sides. A self-sealing tire according to item 1.
ムーニー粘度が２５〜４０であり、前記両側部の内側の
中間域に貼り付けた粘着性密封材のムーニー粘度が１０
〜２５である請求項２に記載のセルフシールタイヤ。3. The Mooney viscosity of the adhesive sealing material applied to both sides is 25 to 40, and the Mooney viscosity of the adhesive sealing material applied to the intermediate region inside the both sides is 10 to 10.
The self-sealing tire according to claim 2, wherein
周面に対する接線がタイヤ回転軸方向に対して１０°以
上である領域に前記高粘度の粘着性密封材を配置した請
求項１、２または３に記載のセルフシールタイヤ。4. The high-viscosity sealing material according to claim 1, wherein the tangent to the tire inner peripheral surface in the tire meridional section is 10 ° or more with respect to the tire rotation axis direction. Self-sealing tire as described.
ッド部のベルト層のエッジに対応する位置からタイヤ内
周面に沿って５ｍｍ以上外側に配置した請求項１〜４の
いずれかに記載のセルフシールタイヤ。5. The tire according to claim 1, wherein the outermost edge of the sealing layer is arranged at least 5 mm outside the tire inner peripheral surface from a position corresponding to the edge of the belt layer in the tread portion. Self-sealing tires.
内周面に、テープ状の粘着性密封材を連続的に螺旋状に
貼り付けて密封層を形成するに際し、タイヤ重量の動的
アンバランス量を測定し、該測定結果に基づき、前記動
的アンバランス量を修正する部分に対応する位置に、前
記粘着性密封材の厚さ及び／または幅を調整して貼り付
け、前記動的アンバランス量を均一化するセルフシール
タイヤの製造方法。6. A tape-shaped adhesive sealing material is continuously spirally attached to at least an inner peripheral surface of a tire corresponding to a tread portion to form a sealing layer. Measuring and adjusting the thickness and / or width of the adhesive sealing material to a position corresponding to a portion for correcting the dynamic unbalance amount based on the measurement result; Of manufacturing a self-sealing tire to make the tire uniform.
づき、前記粘着性密封材の厚さ及び／または幅を調整し
て前記タイヤ内周面の両側部に貼り付け、該両側部に前
記粘着性密封材を貼り付けたタイヤの動的アンバランス
量を再測定し、該再測定結果に基づき、前記粘着性密封
材の厚さ及び／または幅を調整し、該粘着性密封材を前
記両側部の内側の中間域に貼り付ける請求項６に記載の
セルフシールタイヤの製造方法。7. A method of adjusting the thickness and / or width of the adhesive sealing material based on the measurement result of the dynamic unbalance amount and attaching the adhesive sealing material to both sides of the tire inner peripheral surface. The amount of dynamic imbalance of the tire to which the adhesive sealing material is attached is re-measured, and the thickness and / or width of the adhesive sealing material is adjusted based on the re-measurement result. The method for manufacturing a self-sealing tire according to claim 6, wherein the self-sealing tire is affixed to an intermediate region inside both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19025199A JP4371472B2 (en) | 1999-07-05 | 1999-07-05 | Self-sealing tire and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19025199A JP4371472B2 (en) | 1999-07-05 | 1999-07-05 | Self-sealing tire and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001018609A true JP2001018609A (en) | 2001-01-23 |
| JP4371472B2 JP4371472B2 (en) | 2009-11-25 |
Family
ID=16255035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19025199A Expired - Fee Related JP4371472B2 (en) | 1999-07-05 | 1999-07-05 | Self-sealing tire and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4371472B2 (en) |
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