JP4363744B2 - Sealant filling method for tire tube with sealant - Google Patents

Sealant filling method for tire tube with sealant Download PDF

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Publication number
JP4363744B2
JP4363744B2 JP2000126326A JP2000126326A JP4363744B2 JP 4363744 B2 JP4363744 B2 JP 4363744B2 JP 2000126326 A JP2000126326 A JP 2000126326A JP 2000126326 A JP2000126326 A JP 2000126326A JP 4363744 B2 JP4363744 B2 JP 4363744B2
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Japan
Prior art keywords
sealant
air
chamber
filling hole
tire tube
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JP2000126326A
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Japanese (ja)
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JP2001301051A (en
Inventor
豊明 林
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2000126326A priority Critical patent/JP4363744B2/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to DE60012227T priority patent/DE60012227T2/en
Priority to CNB008162204A priority patent/CN1307041C/en
Priority to CNB2003101024518A priority patent/CN100448652C/en
Priority to BRPI0015830-5A priority patent/BR0015830B1/en
Priority to CNB2003101024503A priority patent/CN100448651C/en
Priority to EP03024978A priority patent/EP1391290B1/en
Priority to EP00976360A priority patent/EP1238787B1/en
Priority to DE60022796T priority patent/DE60022796T2/en
Priority to PCT/JP2000/008165 priority patent/WO2001038075A1/en
Priority to US10/130,258 priority patent/US6911104B1/en
Publication of JP2001301051A publication Critical patent/JP2001301051A/en
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Publication of JP4363744B2 publication Critical patent/JP4363744B2/en
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    • 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
    • B29D2030/0698—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being applied by injection, e.g. introducing the sealant through a hole

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、タイヤチューブの内部に空気が充填される空気室とシール剤が充填されるシール剤室とを備えたシール剤入りタイヤチューブに関し、特にそのシール剤室へのシール剤の充填方法に関する。
【０００２】
【従来の技術】
タイヤチューブの内部にシール剤を充填しておき、釘等によるタイヤチューブの刺傷を前記シール剤で自封して空気の漏出を遅らせるようにしたシール剤入りタイヤチューブが、特開昭５８−７４３４２号公報、特開平９−３００４８１号公報により公知である。
【０００３】
前記特開昭５８−７４３４２号公報に記載されたものは、シール剤入りのカプセルを加硫成形前のタイヤチューブの内部に挿入しておき、加硫成形後に前記カプセルを外力で破壊してタイヤチューブ内にシール剤を分散させるようになっている。また前記特開平９−３００４８１号公報に記載されたものは、タイヤチューブの空気室に空気を充填してシール剤室から空気を押し出した状態で、タイヤチューブに形成したシール剤充填孔からシール剤室にシール剤を充填するようになっている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記前者のシール剤充填方法は、カプセルを破壊すべく外力を加えた際にタイヤチューブが損傷する可能性があるだけでなく、シール剤がタイヤチューブに設けた空気弁を詰まらせる可能性があった。また上記後者のシール剤充填方法は、空気室に空気を充填したままの状態でシール剤室にシール剤を充填するので、シール剤を充分に加圧しないと空気室の圧力に抗してシール剤を充填できないという問題があった。
【０００５】
本発明は前述の事情に鑑みてなされたもので、タイヤチューブのシール剤室にシール剤を充填する作業を空気の混入を回避しながら短時間で簡単に完了させるとともに、充填後のシール剤がシール剤充填孔から漏れるのを確実に防止することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するために請求項１に記載された発明によれば、タイヤチューブの内部に空気が充填される空気室とシール剤が充填されるシール剤室とを備えたシール剤入りタイヤチューブにおいて、タイヤチューブの外周壁にシール剤室に連通するシール剤充填孔を形成する第１工程と、シール剤充填孔からシール剤室にシール剤注入ホースを挿入し、タイヤチューブに設けた空気弁から空気室内に空気を供給する第２工程と、空気室内の空気を空気弁から排出しながらシール剤注入ホースを介してシール剤室にシール剤を充填する第３工程と、シール剤充填孔の周辺をクランプした状態で該周辺をバフ磨きする第４工程と、シール剤充填孔の周辺をクランプした状態で該シール剤充填孔を熱可塑性樹脂あるいはホットメルト樹脂により閉塞する第５工程とを備えたことを特徴とするシール剤入りタイヤチューブにおけるシール剤充填方法が提案される。
【０００７】
上記構成によれば、空気弁から空気室に空気を供給してシール剤室から空気を押し出した後にシール剤室にシール剤を充填するので、シール剤に空気を混入させることなく短時間でシール剤を充填することができる。特に、シール剤室にシール剤を充填するときに空気室の空気を排出するので、強い圧力を加えることなくシール剤を容易に供給することができる。また周辺をクランプした状態でシール剤充填孔を熱可塑性樹脂あるいはホットメルト樹脂により閉塞するので、シール剤充填孔からシール剤室に再度空気が侵入するのを防止しながら、極めて短時間でシール剤充填孔を閉塞することができる。しかもシール剤充填孔の周辺をクランプした状態でバフ磨きするので、バフ磨きの荷重によりタイヤチューブが損傷するのを防止することができるだけでなく、油や汚れを除去して熱可塑性樹脂あるいはホットメルト樹脂による閉塞強度を高めることができる。
【０００８】
また請求項２に記載された発明によれば、請求項１の構成に加えて、前記第５工程は、熱可塑性樹脂をシール剤充填孔の周辺に付着させた後に、該熱可塑性樹脂を加熱・加圧してシール剤充填孔を閉塞することを特徴とするシール剤入りタイヤチューブにおけるシール剤充填方法が提案される。
【０００９】
上記構成によれば、熱可塑性樹脂をシール剤充填孔の周辺に付着させた後に加熱・加圧してシール剤充填孔を閉塞するので、熱可塑性樹脂がタイヤチューブと滑らかに一体化されて外観が向上する。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態を、添付図面に示した本発明の実施例に基づいて説明する。
【００１１】
図１〜図４は本発明の一実施例を示すもので、図１はチューブ入りタイヤを装着した車輪の横断面図、図２は図１の２−２線断面図、図３はシール剤の充填工程を説明する第１分図、図４はシール剤の充填工程を説明する第２分図である。
【００１２】
図１および図２に示すように、自動二輪車の車輪のリムＲには、タイヤ本体１と、その内部に収納されたタイヤチューブ２とからなるチューブ入りタイヤＴが装着される。タイヤチューブ２は、タイヤＴの半径方向内側に位置する空気室周壁３ｉと、半径方向外側に位置するシール剤室周壁３ｏとを備えて横断面が環状に形成された周壁３を備える。周壁３の空気室周壁３ｉとシール剤室周壁３ｏとの接続部間は、それと一体に形成された隔壁４によって相互に接続される。空気室周壁３ｉと隔壁４との間に画成された断面略円形の空気室５には空気が充填され、シール剤室周壁３ｏと隔壁４との間に画成された断面略円弧状のシール剤室６にはゲル状のシール剤７が充填される。
【００１３】
リムＲはタイヤＴの円周方向に延びる環状のリム本体部１１と、リム本体部１１の幅方向両端から半径方向外側に延びてタイヤ本体１の内周を保持する一対のフランジ部１２，１２とを備える。タイヤチューブ２の内部に形成された空気室５に空気を充填する空気弁１３は、リム本体部１１の円周方向１個所に形成した空気弁取付部１４を貫通して支持される。
【００１４】
而して、タイヤチューブ２のシール剤室６は空気室５の空気圧によりトレッド１５の内側に沿った形状に保持されるため、タイヤチューブ２が釘等により半径方向あるいは側方から刺傷を受けても、シール剤７がその刺傷を直ちに埋めて補修し、空気室５からの空気の漏出を遅らせる。また、シール剤７はシール剤室６に保持されていて、空気室５側へ流出することがないから、空気弁１３やそれに当てがわれる圧力ゲージ等を詰まらせることもない。
【００１５】
次に、タイヤチューブ２のシール剤室６にシール剤７を充填する工程を、図３および図４に基づいて説明する。
【００１６】
先ず、シール剤７を充填する前のタイヤチューブ２の内周面（空気室周壁３ｉ）を水平に配置した支持板２１の上面に支持し、電気ヒータにより約４００℃に加熱されたホットネイル２２を上方から支持板２１に向けて下降させ、タイヤチューブ２の外周面（シール剤室周壁３ｏ）にシール剤充填孔２ａを形成する。このように加熱されたホットネイル２２を用いることにより、ゴム製のタイヤチューブ２にシール剤充填孔２ａを簡単かつ確実に形成することができる（図３（Ａ）参照）。
【００１７】
ホットネイル２２を上方に退避させた後にシール剤充填孔２ａからシール剤室６の底部に向けてシール剤注入ホース２３を挿入し、これと同時に空気弁１３にコンプレッサ等の圧力源に連なる空気ノズル２４を接続してタイヤチューブ２の空気室５に空気を供給する（図３（Ｂ）参照）。すると空気室５が膨張し、空気室５に隔壁４を介して隣接するシール剤室６内の空気がシール剤充填孔２ａから外部に排出される（図３（Ｃ）参照）。
【００１８】
続いて、空気弁１３および空気ノズル２４を介して空気室５内の空気を排出しながら、シール剤注入ホース２３を介してシール剤室６の底部にシール剤７を充填する。このように、空気室５内の空気を排出しながらシール剤７を充填することにより、シール剤充填孔２ａからシール剤室６に再度空気が流入するのを防止しながら、特別に強い圧力を加えることなくシール剤７を容易に充填することができる。
【００１９】
続いて、空気ノズル２４を空気弁１３から退避させた後にクランプ部材２５を下降させ、支持板２１との協働によりシール剤充填孔２ａの周辺をクランプしてシール剤室６に空気が侵入しないようにする。そして回転するバフ２６で研磨することにより、シール剤充填孔２ａの周辺に付着した油や汚れを除去する（図３（Ｅ）参照）。このとき、回転するバフ２６によってシール剤充填孔２ａの周辺に荷重が加わるが、その部分がクランプ部材２５で移動不能にクランプされているため、バフ２６から受ける摩擦力でタイヤチューブ２が変形して損傷するのを確実に防止することができる。
【００２０】
続いて、バフ２６による研磨を終えたシール剤充填孔２ａの周辺に、シーラ供給ノズル２７からシーラとしてのアクリル系、あるいはウレタン系の熱可塑性樹脂２８を供給する（図４（Ｆ）参照）。そしてシーラ供給ノズル２７を上方に退避させた後に、略１８０℃に加熱した成形型２９で前記熱可塑性樹脂２８を１５秒〜３０秒間加熱して所定の形状に成形する（図４（Ｇ）参照）。而して、熱可塑性樹脂２８が冷却して硬化するとシール剤充填孔２ａが閉塞され、タイヤチューブ２が完成する（図４（Ｈ）参照）。このシール剤充填孔２ａの閉塞工程の間、クランプ部材２５はシール剤充填孔２ａの周辺を囲むようにクランプしている。
【００２１】
以上のように、上記第２実施例によれば、シール剤充填孔２ａの周辺をクランプ部材２５でクランプした状態で該シール剤充填孔２ａを熱可塑性樹脂２８で閉塞するので、一度空気を排出したシール剤室６にシール剤充填孔２ａから再度空気が侵入するのを防止することができ、しかも生ゴムシートの接着に比べて短時間でシール剤充填孔２ａを閉塞することができる。またシール剤充填孔２ａの周辺を予めバフ磨きすることにより、熱可塑性樹脂２８による閉塞強度を高めることができる。更に、成形型２９で熱可塑性樹脂２８を加熱・加圧するので、熱可塑性樹脂２８がタイヤチューブ２と滑らかに一体化されて外観が向上する。
【００２２】
以上、本発明の実施例を詳述したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。
【００２３】
例えば、シール剤充填孔２ａのを熱可塑性樹脂２８で閉塞する代わりに、シール剤充填孔２ａの周辺に成形型を当接させ、その内部を通して溶融したホットメルト樹脂を射出することにより閉塞を行うことも可能である。またタイヤチューブ２に設けた空気弁１３から空気室５内に空気を供給する工程と、シール剤充填孔２ａからシール剤室６にシール剤注入ホース２３を挿入する工程とは、同時に並行して行っても良いし、シール剤注入ホース２３を挿入した後に空気室５内に空気を供給しても良い。
【００２４】
【発明の効果】
以上のように請求項１に記載された発明によれば、空気弁から空気室に空気を供給してシール剤室から空気を押し出した後にシール剤室にシール剤を充填するので、シール剤に空気を混入させることなく短時間でシール剤を充填することができる。特に、シール剤室にシール剤を充填するときに空気室の空気を排出するので、強い圧力を加えることなくシール剤を容易に供給することができる。また周辺をクランプした状態でシール剤充填孔を熱可塑性樹脂あるいはホットメルト樹脂により閉塞するので、シール剤充填孔からシール剤室に再度空気が侵入するのを防止しながら、極めて短時間でシール剤充填孔を閉塞することができる。しかもシール剤充填孔の周辺をクランプした状態でバフ磨きするので、バフ磨きの荷重によりタイヤチューブが損傷するのを防止することができるだけでなく、油や汚れを除去して熱可塑性樹脂あるいはホットメルト樹脂による閉塞強度を高めることができる。
【００２５】
また請求項２に記載された発明によれば、熱可塑性樹脂をシール剤充填孔の周辺に付着させた後に加熱・加圧してシール剤充填孔を閉塞するので、熱可塑性樹脂がタイヤチューブと滑らかに一体化されて外観が向上する。
【図面の簡単な説明】
【図１】 チューブ入りタイヤを装着した車輪の横断面図
【図２】 図１の２−２線断面図
【図３】 シール剤の充填工程を説明する第１分図
【図４】 シール剤の充填工程を説明する第２分図
【符号の説明】
２ タイヤチューブ
２ａ シール剤充填孔
５ 空気室
６ シール剤室
７ シール剤
１３ 空気弁
２２ ホットネイル
２３ シール剤供給ホース
２８ 熱可塑性樹脂[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tire tube with a sealant provided with an air chamber filled with air inside a tire tube and a sealant chamber filled with a sealant, and more particularly to a method of filling the sealant chamber with the sealant. .
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 58-74342 discloses a tire tube containing a sealing agent in which a sealing agent is filled in the tire tube and a tire tube is stabbed by a nail or the like to self-seal with the sealing agent to delay air leakage. This is known from Japanese Patent Laid-Open No. 9-300481.
[0003]
In JP-A-58-74342, a capsule containing a sealant is inserted into a tire tube before vulcanization molding, and the capsule is destroyed by external force after vulcanization molding. A sealant is dispersed in the tube. In addition, what is described in Japanese Patent Laid-Open No. 9-300481 is that a sealant is filled from a sealant filling hole formed in a tire tube in a state where air is filled in an air chamber of the tire tube and air is pushed out from the sealant chamber. The chamber is filled with a sealant.
[0004]
[Problems to be solved by the invention]
However, the former sealing agent filling method may not only damage the tire tube when an external force is applied to break the capsule, but also the sealing agent may clog the air valve provided on the tire tube. was there. In the latter sealing agent filling method, the sealing agent chamber is filled with air while the air chamber is still filled with air. Therefore, if the sealing agent is not sufficiently pressurized, the sealing is performed against the pressure of the air chamber. There was a problem that the agent could not be filled.
[0005]
The present invention has been made in view of the above-described circumstances, and the work of filling the sealant into the sealant chamber of the tire tube can be easily completed in a short time while avoiding the mixing of air. It aims at preventing reliably that it leaks from a sealing agent filling hole.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a tire tube with a sealant provided with an air chamber filled with air and a sealant chamber filled with a sealant inside the tire tube. A first step of forming a sealing agent filling hole communicating with the sealing agent chamber on the outer peripheral wall of the tire tube, and an air valve provided in the tire tube by inserting a sealing agent injection hose from the sealing agent filling hole into the sealing agent chamber A second step of supplying air into the air chamber, a third step of filling the sealant chamber through the sealant injection hose while discharging air in the air chamber from the air valve, and a sealant filling hole fourth step and, closing the sealant filling hole in a state of clamping the periphery of the sealant filling hole of a thermoplastic resin or a hot-melt resin that buffing the periphery said whilst clamped peripheral Step 5 and sealant filling method in the seal agent mixed tire tube comprising the that is proposed.
[0007]
According to the above configuration, the air is supplied from the air valve to the air chamber and the air is extruded from the sealant chamber, and then the sealant chamber is filled with the sealant. The agent can be filled. In particular, since the air in the air chamber is discharged when the sealant chamber is filled with the sealant, the sealant can be easily supplied without applying a strong pressure. In addition, the sealing agent filling hole is closed with a thermoplastic resin or hot melt resin with the periphery clamped, so that the sealing agent can be removed in a very short time while preventing air from entering the sealing agent chamber again from the sealing agent filling hole. The filling hole can be closed. Moreover, buffing is performed with the periphery of the sealant filling hole clamped, so that not only can the tire tube be prevented from being damaged by the load of buffing, but also the oil or dirt can be removed to remove the thermoplastic resin or hot melt. The occlusion strength by the resin can be increased.
[0008]
According to the invention described in claim 2, in addition to the first aspect, wherein the fifth step, after depositing the thermoplastic resin on the periphery of the sealant filling hole, heating the thermoplastic resin A method for filling a sealant in a tire tube containing a sealant, which is characterized by pressurizing and closing the sealant filling hole, is proposed.
[0009]
According to the above configuration, since the thermoplastic resin is attached to the periphery of the sealant filling hole and then heated and pressurized to close the sealant filling hole, the thermoplastic resin is smoothly integrated with the tire tube and the appearance is improved. improves.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0011]
1 to 4 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a wheel equipped with a tube-filled tire, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. FIG. 4 is a second partial diagram for explaining the sealing agent filling step.
[0012]
As shown in FIGS. 1 and 2, a rim R of a motorcycle wheel is fitted with a tube-filled tire T including a tire body 1 and a tire tube 2 housed therein. The tire tube 2 includes an air chamber peripheral wall 3i positioned on the inner side in the radial direction of the tire T and a sealant chamber peripheral wall 3o positioned on the outer side in the radial direction, and the peripheral wall 3 having an annular cross section. The connecting portion between the air chamber peripheral wall 3i and the sealant chamber peripheral wall 3o of the peripheral wall 3 is connected to each other by a partition wall 4 formed integrally therewith. The air chamber 5 having a substantially circular cross section defined between the air chamber peripheral wall 3i and the partition wall 4 is filled with air, and has a substantially arc-shaped cross section defined between the sealant chamber peripheral wall 3o and the partition wall 4. The sealant chamber 6 is filled with a gel sealant 7.
[0013]
The rim R has an annular rim main body portion 11 extending in the circumferential direction of the tire T, and a pair of flange portions 12 and 12 that extend radially outward from both ends in the width direction of the rim main body portion 11 and hold the inner periphery of the tire main body 1. With. An air valve 13 that fills the air chamber 5 formed in the tire tube 2 with air is supported by penetrating an air valve mounting portion 14 formed at one place in the circumferential direction of the rim main body portion 11.
[0014]
Thus, since the sealant chamber 6 of the tire tube 2 is held in a shape along the inside of the tread 15 by the air pressure of the air chamber 5, the tire tube 2 is pierced from the radial direction or the side by a nail or the like. However, the sealing agent 7 immediately fills and repairs the stab wound, and delays the leakage of air from the air chamber 5. Further, since the sealant 7 is held in the sealant chamber 6 and does not flow out to the air chamber 5 side, the air valve 13 and the pressure gauge applied thereto are not clogged.
[0015]
Next, a process of filling the sealant chamber 6 of the tire tube 2 with the sealant 7 will be described with reference to FIGS. 3 and 4.
[0016]
First, an inner peripheral surface (air chamber peripheral wall 3i) of the tire tube 2 before being filled with the sealant 7 is supported on the upper surface of a horizontally disposed support plate 21 and heated to about 400 ° C. by an electric heater. Is lowered from above toward the support plate 21 to form a sealant filling hole 2a on the outer peripheral surface (sealant chamber peripheral wall 3o) of the tire tube 2. By using the hot nail 22 thus heated, the sealant filling hole 2a can be easily and reliably formed in the rubber tire tube 2 (see FIG. 3A).
[0017]
After retracting the hot nail 22 upward, the sealing agent injection hose 23 is inserted from the sealing agent filling hole 2a toward the bottom of the sealing agent chamber 6, and at the same time, the air nozzle 13 is connected to a pressure source such as a compressor. 24 is connected to supply air to the air chamber 5 of the tire tube 2 (see FIG. 3B). Then, the air chamber 5 expands, and the air in the sealant chamber 6 adjacent to the air chamber 5 via the partition wall 4 is discharged to the outside from the sealant filling hole 2a (see FIG. 3C).
[0018]
Subsequently, while discharging the air in the air chamber 5 through the air valve 13 and the air nozzle 24, the sealant 7 is filled into the bottom of the sealant chamber 6 through the sealant injection hose 23. In this way, by filling the sealant 7 while discharging the air in the air chamber 5, a particularly strong pressure is applied while preventing the air from flowing again into the sealant chamber 6 from the sealant filling hole 2a. The sealing agent 7 can be easily filled without adding.
[0019]
Subsequently, after retracting the air nozzle 24 from the air valve 13, the clamp member 25 is lowered, and the periphery of the sealant filling hole 2 a is clamped in cooperation with the support plate 21 so that air does not enter the sealant chamber 6. Like that. Then, by polishing with a rotating buff 26, oil and dirt adhering to the periphery of the sealant filling hole 2a are removed (see FIG. 3E). At this time, a load is applied to the periphery of the sealant filling hole 2 a by the rotating buff 26, but the tire tube 2 is deformed by the frictional force received from the buff 26 because the portion is clamped immovably by the clamp member 25. Damage can be reliably prevented.
[0020]
Subsequently, an acrylic or urethane thermoplastic resin 28 as a sealer is supplied from the sealer supply nozzle 27 to the periphery of the sealant filling hole 2a that has been polished by the buff 26 (see FIG. 4F). Then, after retracting the sealer supply nozzle 27 upward, the thermoplastic resin 28 is heated for 15 seconds to 30 seconds with a molding die 29 heated to approximately 180 ° C. to be molded into a predetermined shape (see FIG. 4G). ). Thus, when the thermoplastic resin 28 is cooled and hardened, the sealing agent filling hole 2a is closed and the tire tube 2 is completed (see FIG. 4H). During the sealing agent filling hole 2a closing process, the clamp member 25 is clamped so as to surround the periphery of the sealing agent filling hole 2a.
[0021]
As described above, according to the second embodiment, since the sealant filling hole 2a is closed with the thermoplastic resin 28 in the state where the periphery of the sealant filling hole 2a is clamped by the clamp member 25, the air is once discharged. It is possible to prevent air from entering the sealing agent chamber 6 again from the sealing agent filling hole 2a, and to close the sealing agent filling hole 2a in a shorter time than the adhesion of the raw rubber sheet. Moreover, the blockage | strength intensity | strength by the thermoplastic resin 28 can be raised by buffing the periphery of the sealing agent filling hole 2a previously. Furthermore, since the heated and pressurized thermoplastic resin 28 in the mold 29, the thermoplastic resin 28 is smoothly integrated with the tire tube 2 appearance is improved.
[0022]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.
[0023]
For example, instead of closing the sealing agent filling hole 2a with the thermoplastic resin 28, the molding die is brought into contact with the periphery of the sealing agent filling hole 2a, and the molten hot melt resin is injected through the inside of the molding die. It is also possible. The step of supplying air from the air valve 13 provided in the tire tube 2 into the air chamber 5 and the step of inserting the sealant injection hose 23 into the sealant chamber 6 from the sealant filling hole 2a are simultaneously performed in parallel. Alternatively, air may be supplied into the air chamber 5 after the sealing agent injection hose 23 is inserted.
[0024]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the air is supplied from the air valve to the air chamber and the air is pushed out from the sealant chamber, the sealant chamber is filled with the sealant. The sealing agent can be filled in a short time without mixing air. In particular, since the air in the air chamber is discharged when the sealant chamber is filled with the sealant, the sealant can be easily supplied without applying a strong pressure. In addition, the sealing agent filling hole is closed with a thermoplastic resin or hot melt resin with the periphery clamped, so that the sealing agent can be removed in a very short time while preventing air from entering the sealing agent chamber again from the sealing agent filling hole. The filling hole can be closed. Moreover, buffing is performed with the periphery of the sealant filling hole clamped, so that not only can the tire tube be prevented from being damaged by the load of buffing, but also the oil or dirt can be removed to remove the thermoplastic resin or hot melt. The occlusion strength by the resin can be increased.
[0025]
According to the second aspect of the present invention, the thermoplastic resin is attached to the periphery of the sealant filling hole and then heated and pressurized to close the sealant filling hole, so that the thermoplastic resin is smooth with the tire tube. To improve the appearance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a wheel equipped with a tire containing a tube. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1. FIG. 3 is a first partial view illustrating a sealing agent filling process. The second part figure explaining the filling process of [sign explanation]
2 tire tube 2a sealant filling hole 5 air chamber 6 sealant chamber 7 sealant 13 air valve 22 hot nail 23 sealant supply hose 28 thermoplastic resin

Claims (2)

タイヤチューブ（２）の内部に空気が充填される空気室（５）とシール剤（７）が充填されるシール剤室（６）とを備えたシール剤入りタイヤチューブにおいて、
タイヤチューブ（２）の外周壁にシール剤室（６）に連通するシール剤充填孔（２ａ）を形成する第１工程と、
シール剤充填孔（２ａ）からシール剤室（６）にシール剤注入ホース（２３）を挿入し、タイヤチューブ（２）に設けた空気弁（１３）から空気室（５）内に空気を供給する第２工程と、
空気室（５）内の空気を空気弁（１３）から排出しながらシール剤注入ホース（２３）を介してシール剤室（６）にシール剤（７）を充填する第３工程と、
シール剤充填孔（２ａ）の周辺をクランプした状態で該周辺をバフ磨きする第４工程と、
シール剤充填孔（２ａ）の周辺をクランプした状態で該シール剤充填孔（２ａ）を熱可塑性樹脂（２８）あるいはホットメルト樹脂により閉塞する第５工程と、
を備えたことを特徴とするシール剤入りタイヤチューブにおけるシール剤充填方法。In a tire tube with a sealant provided with an air chamber (5) filled with air inside a tire tube (2) and a sealant chamber (6) filled with a sealant (7),
A first step of forming a sealant filling hole (2a) communicating with the sealant chamber (6) in the outer peripheral wall of the tire tube (2);
The sealant injection hose (23) is inserted into the sealant chamber (6) from the sealant filling hole (2a), and air is supplied into the air chamber (5) from the air valve (13) provided in the tire tube (2). A second step of
A third step of filling the sealant chamber (6) with the sealant (7) via the sealant injection hose (23) while discharging the air in the air chamber (5) from the air valve (13);
A fourth step of buffing the periphery of the sealant filling hole (2a) with the periphery thereof clamped;
A fifth step of closing the sealant filling hole (2a) with a thermoplastic resin (28) or a hot melt resin in a state where the periphery of the sealant filling hole (2a) is clamped;
A method for filling a sealant in a tire tube with a sealant, comprising: 前記第５工程は、
熱可塑性樹脂（２８）をシール剤充填孔（２ａ）の周辺に付着させた後に、該熱可塑性樹脂（２８）を加熱・加圧してシール剤充填孔（２ａ）を閉塞することを特徴とする、請求項１に記載のシール剤入りタイヤチューブにおけるシール剤充填方法。The fifth step includes
After deposition thermoplastic resin (28) on the periphery of the sealant filling hole (2a), characterized in that it closes the heating and pressurizing sealant filling hole (2a) of said thermoplastic resin (28) The sealing agent filling method in the tire tube containing the sealing agent according to claim 1.
JP2000126326A 1999-11-24 2000-04-21 Sealant filling method for tire tube with sealant Expired - Fee Related JP4363744B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP2000126326A JP4363744B2 (en) 2000-04-21 2000-04-21 Sealant filling method for tire tube with sealant
DE60022796T DE60022796T2 (en) 1999-11-24 2000-11-20 A method of filling a sealant-containing tire with sealant
CNB2003101024518A CN100448652C (en) 1999-11-24 2000-11-20 Sealant charging process in sealant-incorporated tire tube
BRPI0015830-5A BR0015830B1 (en) 1999-11-24 2000-11-20 tire sealant loading process with embedded sealant and sealant loading process into an embedded sealant tire tube.
CNB2003101024503A CN100448651C (en) 1999-11-24 2000-11-20 Method for filling sealing agent in sealing agent-filled tire and sealant charging process in sealant-incorporated tire tube
EP03024978A EP1391290B1 (en) 1999-11-24 2000-11-20 Sealant charging process in sealant-incorporated tire tube
DE60012227T DE60012227T2 (en) 1999-11-24 2000-11-20 METHOD FOR FILLING A SEALANT-CONTAINING TIRES WITH SEALANT
CNB008162204A CN1307041C (en) 1999-11-24 2000-11-20 Sealant filling methods for sealant-containing tire and sealant-containing tire tube
PCT/JP2000/008165 WO2001038075A1 (en) 1999-11-24 2000-11-20 Sealant filling methods for sealant-containing tire and sealant-containing tire tube
US10/130,258 US6911104B1 (en) 1999-11-24 2000-11-20 Sealant filling methods for sealant-containing tire and sealant-containing tire tube
EP00976360A EP1238787B1 (en) 1999-11-24 2000-11-20 Sealant filling methods for sealant-containing tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000126326A JP4363744B2 (en) 2000-04-21 2000-04-21 Sealant filling method for tire tube with sealant

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JP2001301051A JP2001301051A (en) 2001-10-30
JP4363744B2 true JP4363744B2 (en) 2009-11-11

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JP4511754B2 (en) * 2001-03-09 2010-07-28 本田技研工業株式会社 Sealant sealing device for tire tube with sealant
JP4511753B2 (en) * 2001-03-09 2010-07-28 本田技研工業株式会社 Sealant sealing device for tire tube with sealant

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