JPH1016508A - Tube-containing tire - Google Patents
Tube-containing tireInfo
- Publication number
- JPH1016508A JPH1016508A JP8168005A JP16800596A JPH1016508A JP H1016508 A JPH1016508 A JP H1016508A JP 8168005 A JP8168005 A JP 8168005A JP 16800596 A JP16800596 A JP 16800596A JP H1016508 A JPH1016508 A JP H1016508A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tire
- sealant
- air
- chamber
- 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
- B29D2030/0698—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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リムの外周に装着
されるタイヤと、リム及びタイヤにより画成される空間
内に収納されるチューブとからなるチューブ入りタイヤ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubed tire comprising a tire mounted on an outer periphery of a rim, and a tube housed in a space defined by the rim and the tire.
【０００２】[0002]
【従来の技術】チューブ入りタイヤはチューブの気密性
が良好であることから、自動二輪車や自転車に広く用い
られるワイヤスポーク付車輪に装着される。2. Description of the Related Art A tubed tire is mounted on a wheel with wire spokes widely used for motorcycles and bicycles because of its good airtightness.
【０００３】ところで、チューブ入りタイヤを装着した
車輪に半径方向の荷重が作用すると、その荷重によって
タイヤ及びチューブが変形するが、特にオフロードの走
行時にタイヤが岩石等の固い障害物に乗り上げたような
場合や車両がジャンプして接地したような場合には、大
きく変形したタイヤと金属製のリムとの間にチューブが
強く挟圧され、チューブの内壁面どうしが相互に当接す
るリム打ち現象が発生することがある。かかるリム打ち
現象によりチューブの内壁面が相互に当接すると、その
部分に孔が開いて所謂ショックパンクが発生する場合が
ある。特に、相互に当接するチューブの壁面のうち、リ
ムに近い側の壁面（以下、リム打ち部という）は金属製
のリムから局所的な荷重が作用して損傷を受け易い。[0003] When a radial load is applied to a wheel on which a tire with a tube is mounted, the tire and the tube are deformed by the load. In particular, the tire may ride on a hard obstacle such as a rock during off-road driving. When the vehicle jumps and touches the ground, the tube is strongly pinched between the greatly deformed tire and the metal rim, and the rim striking phenomenon in which the inner wall surfaces of the tubes come into contact with each other. May occur. When the inner wall surfaces of the tubes come into contact with each other due to the rimping phenomenon, a hole may be opened at that portion, so-called shock puncture may occur. In particular, among the wall surfaces of the tubes that come into contact with each other, the wall surface on the side closer to the rim (hereinafter, referred to as a rim striking portion) is easily damaged by a local load applied from the metal rim.
【０００４】これを回避するために、タイヤのトレッド
部の内表面とチューブの外表面との間に断面三日月状の
緩衝体を介在させ、この緩衝体によって前記リム打ち現
象によるチューブの損傷を防止するものが提案されてい
る（特開平５−２０１２１３号公報参照）。In order to avoid this, a crescent-shaped buffer is provided between the inner surface of the tread portion of the tire and the outer surface of the tube to prevent damage to the tube due to the rim hitting phenomenon. (See JP-A-5-201213).
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来のものは緩衝体を貫通した釘等によりチューブが刺傷
を受けた場合にパンクの発生を防止することができず、
しかも緩衝体を設けたことによって部品点数が増加し、
これがタイヤの重量増加や製造コスト上昇の要因となっ
ていた。However, the above-mentioned conventional apparatus cannot prevent the occurrence of puncture when the tube is punctured by a nail or the like penetrating the shock absorber.
In addition, the number of parts increases due to the provision of the buffer,
This has led to an increase in tire weight and manufacturing costs.
【０００６】本発明は前述の事情に鑑みてなされたもの
で、釘等の刺傷によるパンクや、障害物への乗り上げに
よるショックパンクの発生を簡単且つ有効に防止し得る
チューブ入りタイヤを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a tube-mounted tire that can easily and effectively prevent puncture caused by a nail or the like and shock puncture caused by riding on an obstacle. With the goal.
【０００７】[0007]
【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に記載された発明は、リムの外周に装着さ
れるタイヤと、リム及びタイヤにより画成される空間内
に収納されるチューブとからなるチューブ入りタイヤに
おいて、前記チューブは、円形断面の周壁の内部を隔壁
で仕切ることにより、周壁の半周を構成する空気室周壁
と隔壁との間に空気が充填される空気室を画成するとと
もに、周壁の残りの半周を構成するシール剤室周壁と隔
壁との間にシール剤が充填されるシール剤室を画成して
なり、該チューブの外表面とタイヤの内表面との間に緩
衝体を介装したことを特徴とする。In order to achieve the above object, the invention described in claim 1 provides a tire mounted on an outer periphery of a rim and a tire housed in a space defined by the rim and the tire. In a tube-filled tire comprising a tube, the tube partitions the inside of a peripheral wall having a circular cross section with a partition, thereby forming an air chamber filled with air between the partition and the air chamber peripheral wall that forms a half circumference of the peripheral wall. And defining a sealant chamber filled with a sealant between the sealant chamber peripheral wall and the partition wall that constitute the remaining half circumference of the peripheral wall, and the outer surface of the tube and the inner surface of the tire. It is characterized in that a buffer is interposed between them.
【０００８】[0008]
【発明の実施例の形態】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。Embodiments of the present invention will be described below.
A description will be given based on an embodiment of the present invention shown in the accompanying drawings.
【０００９】図１〜図３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はチューブの製造工程を示す図、図３は作用の
説明図である。1 to 3 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a wheel equipped with a tubed tire, FIG. 2 is a view showing a tube manufacturing process, and FIG. FIG.
【００１０】図１に示すように、自動二輪車用車輪のリ
ムＲには、タイヤ１と、その内部に収納されるチューブ
２とからなるチューブ入りタイヤＴが装着される。チュ
ーブ２は、半径方向内側に位置する空気室周壁４ｉと、
半径方向外側に位置するシール剤室周壁４ｏとを備えて
断面環状に形成された周壁４を備える。周壁４の空気室
周壁４ｉとシール剤室周壁４ｏとを接続する一対の接続
部間は、それと一体に形成された隔壁５によって相互に
接続される。空気室周壁４ｉと隔壁５との間に画成され
た断面略円形の空気室３には空気が充填され、シール剤
室周壁４ｏと隔壁５との間に画成された断面略円弧状の
シール剤室７には公知の液状シール剤８が充填される。As shown in FIG. 1, a tubed tire T comprising a tire 1 and a tube 2 housed therein is mounted on a rim R of a motorcycle wheel. The tube 2 includes an air chamber peripheral wall 4i located radially inside,
And a peripheral wall 4 formed in an annular cross section with a peripheral wall 4o of the sealant chamber located radially outward. A pair of connecting portions connecting the air chamber peripheral wall 4i and the sealant chamber peripheral wall 4o of the peripheral wall 4 are mutually connected by a partition wall 5 formed integrally therewith. The air chamber 3 having a substantially circular cross section defined between the air chamber peripheral wall 4i and the partition wall 5 is filled with air, and has a substantially arc-shaped cross section defined between the sealing agent chamber peripheral wall 4o and the partition wall 5. A known liquid sealant 8 is filled in the sealant chamber 7.
【００１１】リムＲはチューブ入りタイヤ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の軸
方向両端から半径方向外側に延びてタイヤ１の内周を保
持する一対のフランジ部１２，１２とを備える。チュー
ブ２の内部に形成された空気室３に空気を充填する空気
弁６は、リム本体部１１の円周方向１ヵ所に形成した空
気弁取付部１３を貫通してナット１４，１５で固定され
る。The rim R has an annular rim body 11 extending in the circumferential direction of the tubed tire T, and a pair of flanges extending radially outward from both axial ends of the rim body 11 to hold the inner periphery of the tire 1. Parts 12, 12 are provided. An air valve 6 that fills the air chamber 3 formed inside the tube 2 with air is fixed through nuts 14 and 15 through an air valve mounting portion 13 formed at one location in the circumferential direction of the rim main body 11. You.
【００１２】タイヤ１の内表面とチューブ２の外表面と
の間に、発泡ゴム等のスポンジ状部材よりなるムース１
６が介装される。タイヤ１の内部に装着されたムース１
６はリム本体部１１に対向する部分が開口しており、そ
の開口部からムース１６内にチューブ２が装着される。
ムース１６の厚さは、タイヤ１のトレッド面に対応する
部分が肉薄に形成され、その他の部分、即ちリム打ちに
より大きな荷重が作用する部分は肉厚に形成される。A mousse 1 made of a sponge-like member such as foamed rubber is provided between an inner surface of the tire 1 and an outer surface of the tube 2.
6 are interposed. Moose 1 mounted inside tire 1
Reference numeral 6 denotes an opening at a portion facing the rim body 11, and the tube 2 is mounted in the mousse 16 from the opening.
The thickness of the mousse 16 is such that a portion corresponding to the tread surface of the tire 1 is formed to be thin, and other portions, that is, portions to which a large load is applied by rim striking are formed to be thick.
【００１３】而して、チューブ２のシール剤室７は空気
室３の空気圧によりタイヤ１の内面に沿った形状に保持
されるため、シール剤室７に充填されたシール剤８に車
輪の回転による遠心力が作用しても、そのシール剤８が
チューブ２の外周側に片寄るのを防ぐことができる。ま
た釘等がタイヤ１に刺さっても、ムース１６の厚みの分
だけ釘等の先端がチューブ２に達し難く、チューブ２が
損傷する確率が低くなる。仮に、釘等により半径方向あ
るいは側方からチューブ２が刺傷を受けても、シール剤
８がその刺傷を直ちに埋めて補修し、空気室３からの空
気の漏出を遅らせる。更に、万一チューブ２がパンクし
て空気室３内の空気が漏れても、ムース１６の剛性によ
ってタイヤ１の形状がある程度保たれるため、例えば修
理工場まで車両の走行を継続することができる。またシ
ール剤８はシール剤室７に保持されていて、空気室３側
へ流出することがないから、空気弁６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。Since the sealant chamber 7 of the tube 2 is held in a shape along the inner surface of the tire 1 by the air pressure of the air chamber 3, the sealant 8 filled in the sealant chamber 7 rotates the wheel. Even if the centrifugal force acts on the tube 2, the sealing agent 8 can be prevented from biasing toward the outer peripheral side of the tube 2. Further, even if the nail or the like is pierced into the tire 1, the tip of the nail or the like hardly reaches the tube 2 by the thickness of the mousse 16, and the probability of damaging the tube 2 is reduced. Even if the tube 2 is punctured by a nail or the like from the radial direction or from the side, the sealing agent 8 immediately fills and repairs the puncture, and delays the leakage of air from the air chamber 3. Furthermore, even if the tube 2 is punctured and the air in the air chamber 3 leaks, the rigidity of the mousse 16 keeps the shape of the tire 1 to some extent, so that the vehicle can continue traveling to a repair shop, for example. . Further, since the sealant 8 is held in the sealant chamber 7 and does not flow out to the air chamber 3 side, the air valve 6 and the pressure gauge applied thereto are not clogged.
【００１４】次に、前記チューブ２の製造方法について
説明する。Next, a method of manufacturing the tube 2 will be described.
【００１５】図２に示すように、チューブ２の製造工程
は、材料混練工程、チューブ素材押し出し成形工程、切
断工程、空気弁取付工程、孔開け工程、接合工程、第１
加硫工程、シール剤充填工程、生ゴムシート貼付工程、
第２加硫工程及び検査工程からなる。As shown in FIG. 2, the manufacturing process of the tube 2 includes a material kneading process, a tube material extruding process, a cutting process, an air valve attaching process, a hole forming process, a joining process, and a first process.
Vulcanization process, sealant filling process, raw rubber sheet sticking process,
It comprises a second vulcanization step and an inspection step.
【００１６】先ず、材料混練工程で混練した材料をチュ
ーブ素材押し出し成形工程で押し出し成形することによ
り、生ゴムよりなるチューブ素材２′を成形する。押し
出し成形機のノズルから連続的に押し出し成形されるチ
ューブ素材２′は、横断面円形の周壁４と、この周壁４
の直径上に位置する２点を接続する隔壁５とを備えてお
り、周壁４は隔壁５との接続部を境にして空気室周壁４
ｉとシール剤室周壁４ｏとに分かれている。First, the material kneaded in the material kneading step is extruded in a tube material extruding step to form a tube material 2 'made of raw rubber. The tube material 2 ′ continuously extruded from the nozzle of the extruder has a peripheral wall 4 having a circular cross section and the peripheral wall 4.
And a partition wall 5 connecting two points located on the diameter of the air chamber.
i and a sealing agent chamber peripheral wall 4o.
【００１７】続く切断工程でチューブ素材２′を所定長
さに切断した後、空気弁取付工程で空気室周壁４ｉの適
所に空気弁６を取り付け、更に孔開け工程でチューブ素
材２′のシール剤室周壁４ｏにシール剤充填孔４1 を開
設する。After the tube material 2 'is cut to a predetermined length in a subsequent cutting step, an air valve 6 is attached to an appropriate position of the air chamber peripheral wall 4i in an air valve attaching step, and a sealing agent for the tube material 2' is made in a hole making step. opening a sealant filling holes 4 1 to the chamber wall 4o.
【００１８】続く接合工程でチューブ素材２′の両端部
を接合した後、第１加硫工程において、前記チューブ素
材２′を加熱型内に挿入し、空気弁６から空気室３に加
熱した空気或いは高温の水蒸気を供給することにより、
空気室周壁４ｉ及びシール剤室周壁４ｏを加熱型に密着
させるとともに隔壁５をシール剤室周壁４ｏに密着さ
せ、この状態で加熱型を加熱して加硫を行う。After joining both ends of the tube material 2 ′ in a subsequent joining step, in a first vulcanizing step, the tube material 2 ′ is inserted into a heating mold, and the heated air from the air valve 6 to the air chamber 3 is heated. Or by supplying high temperature steam,
The peripheral wall 4i of the air chamber and the peripheral wall 4o of the sealing agent chamber are brought into close contact with the heating die, and the partition wall 5 is brought into close contact with the peripheral wall 4o of the sealing agent chamber. In this state, the heating die is heated to perform vulcanization.
【００１９】続くシール剤充填工程でシール剤充填孔４
1 からシール剤室７にシール剤８を充填する。このと
き、シール剤８の充填に先立って空気弁６から空気を供
給して空気室３を膨張させることにより、隔壁５をシー
ル剤室周壁４ｏに密着させてシール剤室７内の空気を完
全に排出しておき、この状態からシール剤８の充填を開
始する。このように、シール剤室７の空気を完全に排出
した状態からシール剤８の充填を開始することにより、
シール剤８に対する空気の混入を有効に防止し、シール
剤８のみを充填することができる。また空気弁６を利用
して空気室３に空気を供給しているので、空気室周壁４
ｉに空気充填用の孔を開ける必要がない。In the subsequent sealant filling step, the sealant filling holes 4
The sealing agent 8 is filled from 1 into the sealing agent chamber 7. At this time, the air is supplied from the air valve 6 and the air chamber 3 is expanded prior to the filling of the sealant 8, whereby the partition wall 5 is brought into close contact with the peripheral wall 4o of the sealant chamber and the air in the sealant chamber 7 is completely removed. And the filling of the sealant 8 is started from this state. As described above, by starting to fill the sealant 8 from the state where the air in the sealant chamber 7 is completely discharged,
It is possible to effectively prevent air from being mixed into the sealant 8 and fill only the sealant 8. Further, since air is supplied to the air chamber 3 using the air valve 6, the air chamber peripheral wall 4 is provided.
It is not necessary to make a hole for air filling in i.
【００２０】続く生ゴムシート貼付工程において、シー
ル剤充填孔４1 を覆うように生ゴムシート１９を貼付し
た後、第２加硫工程で生ゴムシート１９の近傍を局部的
に加硫してシール剤充填孔４1 を閉塞することによりチ
ューブ２を完成する。チューブ素材２′と同一材料であ
る生ゴムシート１９を使用してシール剤充填孔４1 を閉
塞するので、閉塞部の強度を向上させてシール剤８の漏
れを有効に防止することができる。而して、完成したチ
ューブ２を検査工程において検査して製造工程を終了す
る。[0020] In the subsequent raw rubber sheet sticking step, after sticking a raw rubber sheet 19 so as to cover the sealant filling holes 4 1, locally vulcanized to sealant filled in the vicinity of the raw rubber sheet 19 at about the second vulcanization step to complete the tube 2 by closing the pores 4 1. Since closing the sealant filling holes 4 1 using the raw rubber sheet 19 which is the same material as the tube material 2 'can be effectively prevented to improve the strength of the closed portion of the leakage of the sealant 8. Then, the completed tube 2 is inspected in the inspection process, and the manufacturing process is completed.
【００２１】次に、本発明の実施例の作用について説明
する。Next, the operation of the embodiment of the present invention will be described.
【００２２】図３に示すように、チューブ入りタイヤＴ
が路面の障害物２０に乗り上げて衝撃的な荷重が作用す
ると、その荷重によってタイヤ１及びチューブ２の一部
が半径方向に圧縮される。このとき、半径方向外向に突
出するリムＲのフランジ部１２，１２と前記障害物２０
との間にタイヤ１及びチューブ２が挟圧されるが、タイ
ヤ１及びチューブ２間に弾性を有するムース１６が介装
されているため、チューブ２に作用する荷重が分散・軽
減され、リム打ちによるチューブ２の損傷を効果的に防
止することができる。As shown in FIG. 3, the tubed tire T
When the vehicle rides on the obstacle 20 on the road surface and a shocking load is applied, the load compresses a part of the tire 1 and the tube 2 in the radial direction. At this time, the flanges 12 and 12 of the rim R projecting outward in the radial direction and the obstacle 20
The tire 1 and the tube 2 are sandwiched between the tire 1 and the tube 2. However, since the elastic mousse 16 is interposed between the tire 1 and the tube 2, the load acting on the tube 2 is dispersed and reduced, and the rim driving is performed. Can effectively prevent the tube 2 from being damaged.
【００２３】図４は、本実施例のチューブ入りタイヤＴ
がムース１６を持たないと仮定した場合の作用を示すも
のである。図４（ａ）は、チューブ２をタイヤ１の内部
に装着して空気室３に空気を充填する前の状態、即ちチ
ューブ２が膨張していない自由状態を示しており、この
ときチューブ２の外表面とタイヤ１の内表面との間に隙
間αが存在している。図４（ｂ）は、前記チューブ２の
空気室３に空気弁６を介して空気を充填した膨張状態を
示しており、空気室３の膨張によりチューブ２の外表面
とタイヤ１の内表面とが密着して前記隙間αが消滅して
いる。FIG. 4 shows a tubed tire T of this embodiment.
Shows the operation when it is assumed that the muzzle 16 does not have the mousse 16. FIG. 4A shows a state before the tube 2 is mounted inside the tire 1 and the air chamber 3 is filled with air, that is, a free state in which the tube 2 is not inflated. A gap α exists between the outer surface and the inner surface of the tire 1. FIG. 4B shows an inflated state in which the air chamber 3 of the tube 2 is filled with air via the air valve 6, and the outer surface of the tube 2 and the inner surface of the tire 1 due to the expansion of the air chamber 3. And the gap α has disappeared.
【００２４】ところで、前記自由状態のチューブ２をタ
イヤ１の開口から挿入するとき、チューブ２が小型であ
れば挿入作業を容易に行うことができる。しかしなが
ら、チューブ２を小型化すると、タイヤ１の内部でチュ
ーブ２を膨張させるとき、そのチューブ２の外表面をタ
イヤ１の内表面に密着させるためには、該チューブ２の
断面伸長率Ｒを大きく設定する必要がある。前記断面伸
長率Ｒは、自由状態でのチューブ２の断面積（図４
（ａ）の斜線部の面積Ａ）に対する、膨張状態でのチュ
ーブ２の断面積（図４（ｂ）の斜線部の面積Ｂ）の比
（Ｒ＝Ｂ／Ａ）によって与えられる。When the tube 2 in the free state is inserted through the opening of the tire 1, the insertion operation can be easily performed if the tube 2 is small. However, when the tube 2 is miniaturized, when the tube 2 is inflated inside the tire 1, in order to make the outer surface of the tube 2 adhere to the inner surface of the tire 1, the section elongation R of the tube 2 is increased. Must be set. The cross-sectional elongation R is determined by the cross-sectional area of the tube 2 in the free state (FIG.
It is given by the ratio (R = B / A) of the cross-sectional area of the tube 2 in the expanded state (the area B of the hatched portion in FIG. 4B) to the area A of the hatched portion in (a).
【００２５】このように断面伸長率Ｒを大きく設定する
と、膨張時におけるチューブ２の隔壁５の張力が大きく
なり、該隔壁５には自己の弾性で自由状態に戻ろうとす
る荷重（図４（ｂ）の矢印ｆ参照）が作用することにな
る。図４（ｃ）に示すように、釘等がタイヤ１及びチュ
ーブ２を貫通してシール剤室７が２カ所の刺傷ａ，ｂを
受けた場合、車輪が回転していれば隔壁５が遠心力でシ
ール剤室７側に付勢されるために、空気室３の空気が刺
傷ｂからシール剤室７に流入することはない。しかしな
がら、車輪の回転が停止して前記遠心力が消滅すると、
大きな張力が作用している隔壁５が空気室３側に縮もう
とするため、空気室３の空気が刺傷ｂからシール剤室７
に流入してシール剤８と混合してしまう。このようにし
てシール剤８に空気が混入すると、シール剤８が空気に
阻害されて刺傷ａ，ｂに達し難くなったり、シール剤８
の流動性が悪くなってシール性能が低してしまう。When the cross-sectional elongation rate R is set to a large value as described above, the tension of the partition wall 5 of the tube 2 at the time of expansion increases, and the partition wall 5 is loaded by its own elasticity to return to a free state (FIG. 4B). ) Will work. As shown in FIG. 4C, when a nail or the like penetrates the tire 1 and the tube 2 and the sealant chamber 7 receives two punctures a and b, if the wheel is rotating, the partition wall 5 is centrifuged. Since the air is urged toward the sealant chamber 7 by force, the air in the air chamber 3 does not flow into the sealant chamber 7 from the puncture b. However, when the rotation of the wheels stops and the centrifugal force disappears,
Since the partition wall 5 on which a large tension is acting tends to contract toward the air chamber 3, the air in the air chamber 3 is removed from the puncture b by the sealing agent chamber 7.
And mixes with the sealant 8. When air is mixed into the sealant 8 in this manner, the sealant 8 is hindered by the air, making it difficult to reach the punctures a and b, or
The fluidity of the resin deteriorates, and the sealing performance decreases.
【００２６】しかしながら、本実施例のチューブ入りタ
イヤＴは、予めタイヤ１に装着したムース１６の内部に
自由状態のチューブ２を挿入して膨張させるため、チュ
ーブ２の断面伸長率Ｒを小さく抑えて前記不具合を解消
することができる。なぜならば、ムース１６はタイヤ１
に比べて容易に弾性変形可能であるため、自由状態のチ
ューブ２の寸法を大きめに設定しても、ムース１６の開
口を弾性変形させて前記自由状態のチューブ２を容易に
挿入することができる。而して、自由状態のチューブ２
の寸法を大きめに設定したことにより、そのチューブを
膨張させる際の膨張量、即ち前記断面伸長率Ｒを低く抑
えることができる。However, in the tubed tire T of the present embodiment, since the free tube 2 is inserted into the mousse 16 previously mounted on the tire 1 and expanded, the cross-sectional elongation rate R of the tube 2 is kept small. The above problem can be solved. Because mousse 16 is tire 1
Since the tube 2 in the free state can be easily elastically deformed, the opening of the mousse 16 can be elastically deformed to easily insert the tube 2 in the free state even if the size of the tube 2 in the free state is set to be large. . Thus, the free tube 2
By setting the dimension to be relatively large, the amount of expansion when the tube is expanded, that is, the cross-sectional elongation rate R can be kept low.
【００２７】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。Although the embodiments of the present invention have been described in detail, various design changes can be made in the present invention without departing from the gist thereof.
【００２８】[0028]
【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、円形断面の周壁の内部を隔壁で仕切ること
により、周壁の半周を構成する空気室周壁と隔壁との間
に空気が充填される空気室を画成するとともに、周壁の
残りの半周を構成するシール剤室周壁と隔壁との間にシ
ール剤が充填されるシール剤室を画成してなるチューブ
を備えたことにより、タイヤを通してチューブが刺傷を
受けても、その刺傷をシール剤で即座に補修して空気室
からの空気の漏れを防止することができる。しかも、タ
イヤとチューブ間に緩衝体を介装したことにより、タイ
ヤに刺さった釘等がチューブに達し難くなるだけでな
く、リム打ち現象によりタイヤとリムとの間にチューブ
が強く挟圧されても、緩衝体によってチューブに加わる
荷重を軽減してショックパンクの発生を防止することが
できる。また万一チューブが損傷して空気室から空気が
漏れても、緩衝体の剛性でタイヤの形状を保持して車両
の走行を継続することができる。更に、タイヤに予め装
着した緩衝体の内部にチューブを組み付けるとき、緩衝
体が弾性変形するためにチューブを大型化してもでも容
易に組み付けることができる。これにより、チューブの
断面伸長率を低く抑えてシール剤によるシール性能を高
めることができる。As described above, according to the first aspect of the present invention, the inside of the peripheral wall having a circular cross section is partitioned by the partition, so that a space between the air chamber peripheral wall and the partition that constitutes a half circumference of the peripheral wall is provided. A tube defining an air chamber filled with air and defining a sealant chamber filled with the sealant between a peripheral wall of the sealant chamber and a partition forming the remaining half of the peripheral wall was provided. Thus, even if the tube receives a puncture through the tire, the puncture can be immediately repaired with the sealant to prevent air leakage from the air chamber. In addition, since the cushioning member is interposed between the tire and the tube, not only does it make it difficult for nails and the like stuck in the tire to reach the tube, but the tube is strongly pinched between the tire and the rim due to the rim hitting phenomenon. In addition, the shock puncture can be prevented by reducing the load applied to the tube by the buffer. Also, even if the tube is damaged and air leaks from the air chamber, the vehicle can continue running while maintaining the shape of the tire due to the rigidity of the shock absorber. Further, when the tube is assembled inside the shock absorber previously mounted on the tire, the shock absorber is elastically deformed, so that the tube can be easily assembled even if the tube is enlarged. Thereby, the cross-sectional elongation rate of the tube can be kept low and the sealing performance by the sealant can be enhanced.
【図１】チューブ入りタイヤを装着した車輪の横断面図FIG. 1 is a cross-sectional view of a wheel equipped with a tubed tire.
【図２】チューブの製造工程を示す図FIG. 2 is a diagram showing a tube manufacturing process.
【図３】作用の説明図FIG. 3 is an explanatory diagram of an operation.
【図４】断面伸長率の説明図FIG. 4 is an explanatory view of a section elongation rate.
Ｒ リム １ タイヤ ２ チューブ ４ 周壁 ４ｉ 空気室周壁 ４ｏ シール剤室周壁 ５ 隔壁 ７ シール剤室 ８ シール剤 １６ ムース（緩衝体） R rim 1 tire 2 tube 4 peripheral wall 4i air chamber peripheral wall 4o sealant chamber peripheral wall 5 partition 7 sealant chamber 8 sealant 16 mousse (buffer)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山崎 克俊 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 ──────────────────────────────────────────────────の Continued from the front page (72) Inventor Katsutoshi Yamazaki 1-4-1 Chuo, Wako-shi, Saitama
Claims (1)
（１）と、リム（Ｒ）及びタイヤ（１）により画成され
る空間内に収納されるチューブ（２）とからなるチュー
ブ入りタイヤにおいて、 前記チューブ（２）は、円形断面の周壁（４）の内部を
隔壁（５）で仕切ることにより、周壁（４）の半周を構
成する空気室周壁（４ｉ）と隔壁（５）との間に空気が
充填される空気室（３）を画成するとともに、周壁
（４）の残りの半周を構成するシール剤室周壁（４ｏ）
と隔壁（５）との間にシール剤（８）が充填されるシー
ル剤室（７）を画成してなり、該チューブ（２）の外表
面とタイヤ（１）の内表面との間に緩衝体（１６）を介
装したことを特徴とするチューブ入りタイヤ。1. A tube comprising a tire (1) mounted on the outer periphery of a rim (R) and a tube (2) housed in a space defined by the rim (R) and the tire (1). In the tire, the tube (2) partitions the inside of the peripheral wall (4) having a circular cross section with a partition (5), thereby forming an air chamber peripheral wall (4i) and a partition (5) forming a half circumference of the peripheral wall (4). An air chamber (3) filled with air therebetween and a sealing agent chamber peripheral wall (4o) constituting the remaining half of the peripheral wall (4)
Between the outer surface of the tube (2) and the inner surface of the tire (1). A tire with a tube, characterized in that a buffer (16) is interposed in the tire.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16800596A JP3554436B2 (en) | 1996-06-27 | 1996-06-27 | Tube tires |
| IT97TO000559A IT1293389B1 (en) | 1996-06-27 | 1997-06-26 | TIRE WITH AIR CHAMBER |
| KR1019970028342A KR100504621B1 (en) | 1996-06-27 | 1997-06-27 | Tube tire |
| CN97115553A CN1072136C (en) | 1996-06-27 | 1997-06-27 | Tube tire |
| BR9703750A BR9703750A (en) | 1996-06-27 | 1997-06-27 | Tire with tube |
| TW086109021A TW355698B (en) | 1996-06-27 | 1997-06-27 | Tube tire |
| IDP972239A ID17312A (en) | 1996-06-27 | 1997-06-27 | INNER TUBE |
| US08/884,648 US6158489A (en) | 1996-06-27 | 1997-06-27 | Tube tire |
| US09/680,224 US6557603B1 (en) | 1996-06-27 | 2000-10-06 | Tube for a tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16800596A JP3554436B2 (en) | 1996-06-27 | 1996-06-27 | Tube tires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1016508A true JPH1016508A (en) | 1998-01-20 |
| JP3554436B2 JP3554436B2 (en) | 2004-08-18 |
Family
ID=15860043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16800596A Expired - Fee Related JP3554436B2 (en) | 1996-06-27 | 1996-06-27 | Tube tires |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3554436B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302988A (en) * | 2022-08-26 | 2022-11-08 | 河北万达轮胎有限公司 | Puncture-resistant vacuum tire structure for road bicycle |
-
1996
- 1996-06-27 JP JP16800596A patent/JP3554436B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302988A (en) * | 2022-08-26 | 2022-11-08 | 河北万达轮胎有限公司 | Puncture-resistant vacuum tire structure for road bicycle |
| CN115302988B (en) * | 2022-08-26 | 2023-09-05 | 河北万达轮胎有限公司 | Puncture-resistant vacuum tire structure of road bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3554436B2 (en) | 2004-08-18 |
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