JP3488744B2 - Foil for wire spoke type tubeless tire and method of manufacturing the same - Google Patents
Foil for wire spoke type tubeless tire and method of manufacturing the sameInfo
- Publication number
- JP3488744B2 JP3488744B2 JP16673694A JP16673694A JP3488744B2 JP 3488744 B2 JP3488744 B2 JP 3488744B2 JP 16673694 A JP16673694 A JP 16673694A JP 16673694 A JP16673694 A JP 16673694A JP 3488744 B2 JP3488744 B2 JP 3488744B2
- Authority
- JP
- Japan
- Prior art keywords
- rim
- spoke
- thin plate
- wire
- foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Tires In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ワイヤスポーク式チュ
ーブレスタイヤ用ホイル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 wire-spoke tubeless tire foil and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】ワイヤスポーク式ホイルでは、複数のワ
イヤスポークの一端をそれぞれ螺合させるスポークニッ
プルが、リムの溝部にその周方向に間隔をあけて設けら
れた挿通孔にそれぞれ挿通、係止されるものであり、各
スポークニップルと挿通孔内周面との間には間隙が生じ
ている。このため、チューブレスタイヤをワイヤスポー
ク式ホイルに装着するにあたっては、前記間隙からの空
気洩れを防止する必要があり、そのための構造が、たと
えば実開昭６０−４６４０３号公報および実開昭６２−
４３００１号公報等により開示されている。2. Description of the Related Art In a wire spoke type wheel, spoke nipples into which one ends of a plurality of wire spokes are respectively screwed are inserted and locked in insertion holes provided at intervals in the circumferential direction of a groove portion of a rim. There is a gap between each spoke nipple and the inner peripheral surface of the insertion hole. Therefore, when the tubeless tire is attached to the wire spoke type wheel, it is necessary to prevent air leakage from the gap, and the structure for that purpose is, for example, Japanese Utility Model Laid-Open No. 60-46403 and Japanese Utility Model Laid-Open No. 62-62.
No. 43001 and the like.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記実開昭
６０−４６４０３号公報および実開昭６２−４３００１
号公報では、リムの溝部を帯板あるいはシール部材が覆
うようにしており、リムの溝部が実質的に帯板あるいは
シール部材で埋められる構造となっている。このため、
チューブレスタイヤをリムに装着する際に、該チューブ
レスタイヤのビードをリムの溝部に落とし込むことが困
難で、チューブレスタイヤの組付け性が損なわれる。However, the above-mentioned Japanese Utility Model Laid-Open No. 60-46403 and Japanese Utility Model Laid-Open No. 62-43001 are disclosed.
In the publication, the groove portion of the rim is covered with the strip plate or the seal member, and the groove portion of the rim is substantially filled with the strip plate or the seal member. For this reason,
When mounting the tubeless tire on the rim, it is difficult to drop the beads of the tubeless tire into the groove portion of the rim, and the assembling property of the tubeless tire is impaired.
【０００４】本発明は、かかる事情に鑑みてなされたも
のであり、従来のワイヤスポーク式ホイルと同一外観を
有し、チューブレスタイヤの組付け性を向上させたワイ
ヤスポーク式チューブレスタイヤ用ホイルの製造にあた
って、スポークニップルおよびリム間の間隙を容易にシ
ールし得るようにした製造方法を提供することを目的と
する。[0004] The present invention has been made in view of such circumstances, have a conventional wire spoked wheel the same appearance, the wire spoked wheel Le tubeless tires with improved assembly of the tubeless tire in manufacturing, it is an object to provide a manufacturing method as the gap between spoke nipples and the rim can be readily sealed.
【０００５】[0005]
【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記載の発明は、周方向に間隔をあけた複数
個所に挿通孔が設けられた溝部を幅方向中央部に有する
リムの外周面の全幅、全周にわたって、各挿通孔にスポ
ークニップルがそれぞれ挿通、係止された状態で薄いシ
ール板が密着、結合され、各スポークニップルに一端が
それぞれ螺合される複数のワイヤスポークの他端がハブ
にそれぞれ連結されてなるワイヤスポーク式チューブレ
スタイヤ用ホイルの製造方法であって、前記リムに薄板
シール部を密着、結合させるにあたって、少なくとも溝
部の各挿通孔にスポークニップルをそれぞれ挿通、係止
させた状態で、リムおよび該リムを同軸に覆う薄板円筒
体を両側から挟む一対の密封治具にリムの両側面および
薄板円筒体の両端を密接させることにより、挿通孔およ
びスポークニップル間の間隙を介してリムの内方側に通
じる環状室をリムおよび薄板円筒体間に形成しておき、
リムの内方側の圧力を薄板円筒体の外方側の圧力よりも
低下させることにより薄板円筒体の内外に生じる圧力差
で該薄板円筒体を塑性変形させてリムの外周面に密着、
結合したシール板を形成することを特徴とする。To achieve the above Purpose SUMMARY OF THE INVENTION The invention of claim 1, wherein has a groove insertion hole is provided at a plurality of locations spaced circumferentially widthwise central portion A plurality of wires whose spoke nipples are inserted into and locked in the insertion holes over the entire width and circumference of the outer peripheral surface of the rim, and in which the thin sealing plates are closely adhered and joined, and one end is screwed into each spoke nipple. Wire-spoke tubeless with the other ends of the spokes connected to the hub, respectively.
A method for manufacturing a wheel for a tire, comprising a thin plate on the rim.
Make sure that at least the groove is
Insert and lock the spoke nipples into the insertion holes of the
Rim and thin-plate cylinder that coaxially covers the rim
A pair of sealing jigs that sandwich the body from both sides
By inserting both ends of the thin plate cylinder into close contact, the insertion hole and
And the spoke nipple through the gap to the inner side of the rim.
An annular chamber for twisting is formed between the rim and the thin plate cylinder,
The pressure on the inner side of the rim is lower than the pressure on the outer side of the thin plate cylinder.
Pressure difference generated inside and outside the thin plate cylinder by lowering
Then, the thin plate cylinder is plastically deformed to adhere to the outer peripheral surface of the rim,
It is characterized by forming a bonded seal plate .
【０００６】また請求項２記載の発明は、前記請求項１
に記載のワイヤスポーク式チューブレスタイヤ用ホイル
の製造方法により製造されたことを特徴とする。 The invention according to claim 2 is the same as claim 1
Wire-spoke tubeless tire foil as described in
It characterized by being manufactured by the method of manufacture.
【０００７】[0007]
【実施例】以下、図面により本発明の実施例について説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図１ないし図４は第１実施例を示すもので
あり、図１はワイヤスポーク式チューブレスタイヤ用ホ
イルの横断面図、図２は図１の要部拡大図、図３はリム
バルブ装着部付近の図２に対応する断面図、図４は製造
過程を示す断面図である。1 to 4 show a first embodiment, FIG. 1 is a cross sectional view of a wheel for a wire spoke type tubeless tire, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is a rim valve mounted. FIG. 4 is a cross-sectional view of the vicinity of the portion corresponding to FIG. 2, and FIG. 4 is a cross-sectional view showing the manufacturing process.
【０００９】先ず図１において、リム１は、その幅方向
両側から中央部にかけて順に、一対のビード係止部１
ａ，１ａと、両ビード係止部１ａ，１ａから内方側に延
設される一対のビードシート部１ｂ，１ｂと、両ビード
シート部１ｂ，１ｂの内端でそれぞれ外方に隆起した一
対のハンプ部１ｃ，１ｃと、両ハンプ部１ｃ，１ｃ間で
内方側に窪んだ溝部１ｄとを有した横断面形状を有して
リング状に形成されるものであり、溝部１ｄには、その
周方向に間隔をあけた複数個所に挿通孔３…が設けられ
る。First, in FIG. 1, the rim 1 has a pair of bead locking portions 1 in order from both sides in the width direction to the central portion.
a, 1a, a pair of bead seat portions 1b, 1b extending inward from both bead locking portions 1a, 1a, and a pair of outer bead seat portions 1b, 1b bulged outward at the inner ends thereof, respectively. The hump portions 1c, 1c and the groove portion 1d recessed inward between the hump portions 1c, 1c are formed in a ring shape, and the groove portion 1d includes: Insertion holes 3 ... Are provided at a plurality of positions spaced apart in the circumferential direction.
【００１０】一方、リム１と同心のハブ４には、その両
端部で半径方向外方に張出した一対の連結鍔部４ａ，４
ａが一体に設けられており、それらの連結鍔部４ａ，４
ａには、周方向に間隔をあけた複数個所に挿通孔５…が
それぞれ設けられる。On the other hand, the hub 4 which is concentric with the rim 1 has a pair of connecting flanges 4a, 4 which are radially outwardly extended at both ends thereof.
a is integrally provided, and their connecting collar portions 4a, 4a
Insertion holes 5 ... Are provided at a plurality of positions a in the circumferential direction.
【００１１】リム１の各挿通孔３…には、スポークニッ
プル６…がそれぞれ挿通係止され、複数のワイヤスポー
ク７1 …の一端が各スポークニップル６…にそれぞれ螺
合される。而してワイヤスポーク７1 …の他端には、ハ
ブ４の各挿通孔５…に挿通、係止される係止部７ａがそ
れぞれ設けられ、それらの係止部７ａ…の端面には、ド
ライバ等を係合してワイヤスポーク７1 を回転操作する
ための係止溝７ｂがそれぞれ設けられる。Spoke nipples 6 are inserted and locked into the insertion holes 3 of the rim 1, and one ends of a plurality of wire spokes 7 1 are screwed into the spoke nipples 6 respectively. At the other ends of the wire spokes 7 1 are provided locking parts 7a which are inserted into and locked by the respective insertion holes 5 of the hub 4, and the end faces of the locking parts 7a. Locking grooves 7b for engaging a driver or the like to rotate the wire spokes 7 1 are provided respectively.
【００１２】図２において、溝部１ｄの各挿通孔３…に
スポークニップル６…をそれぞれ挿通、係止させた状態
に在るリム１の外周面の全周、全幅には、たとえば金属
から成る薄いシール板８が密着、結合せしめられる。但
し、スポークニップル６…の係止位置には、溝部１ｄの
内方に各スポークニップル６…の頭部６ａが配置されて
いるので、シール板８は頭部６ａに密着せしめられる。
またリム１のビード係止部１ａおよびビードシート部１
ｂを除く部分の外面に１あるいは複数の突部１ｅあるい
は凹部を設けておき、リム１の外周面にシール板８が密
着された状態で該シール板８のリム１との相対回動を阻
止するようにしてもよい。In FIG. 2, the outer peripheral surface of the rim 1 in a state where the spoke nipples 6 are inserted into and locked in the respective insertion holes 3 of the groove portion 1d are made of, for example, a thin metal outer surface. The seal plate 8 is brought into close contact with and bonded to it. However, since the heads 6a of the spoke nipples 6 are arranged inside the groove 1d at the locking positions of the spoke nipples 6 ..., The seal plate 8 is brought into close contact with the head 6a.
Further, the bead locking portion 1a of the rim 1 and the bead seat portion 1
One or more protrusions 1e or recesses are provided on the outer surface of the portion excluding b, and relative rotation of the seal plate 8 with the rim 1 is prevented in a state where the seal plate 8 is in close contact with the outer peripheral surface of the rim 1. You may do it.
【００１３】チューブレスタイヤ２は、そのビード２
ａ，２ａを両ビード係止部１ａ，１ａに対応する部分で
シール板８にそれぞれ係止させるとともに、両ビードシ
ート部１ｂ，１ｂに対応する部分でシール板８にそれぞ
れ密接させるようにして、リム１に装着される。The tubeless tire 2 has its beads 2
a and 2a are locked to the seal plate 8 at the portions corresponding to the bead locking portions 1a and 1a, respectively, and are brought into close contact with the seal plate 8 at the portions corresponding to the bead seat portions 1b and 1b, respectively. It is attached to the rim 1.
【００１４】図３において、リム１の溝部１ｄには、該
リム１の外周面にシール板８が密着、結合されている状
態でリムバルブ９が装着される。このリムバルブ９の装
着個所で溝部１ｄには、装着孔１０が設けられており、
リム１の外周面にシール板８が密着、結合せしめられた
後に、該シール板８の装着孔１０に対応する部分には、
プレス加工等により装着孔１０に嵌合する円筒状のシー
ルガイド部８ａが形成される。而してリムバルブ９は、
シールガイド部８ａの外端に当接する鍔部９ａと、該鍔
部９ａから突出してシールガイド部８ａの内端周縁に弾
発的に密接、係合するラバー９ｂとを有するものであ
り、ラバー９ｂをシールガイド部８ａに強制的に嵌入す
ることにより、シールガイド部８ａの全周にわたるシー
ル状態を保つようにしてリムバルブ９がリム１に装着さ
れる。In FIG. 3, a rim valve 9 is mounted in the groove portion 1d of the rim 1 in a state in which a seal plate 8 is closely attached and joined to the outer peripheral surface of the rim 1. A mounting hole 10 is provided in the groove portion 1d at the mounting position of the rim valve 9,
After the seal plate 8 is closely attached to and joined to the outer peripheral surface of the rim 1, the portion corresponding to the mounting hole 10 of the seal plate 8 is
A cylindrical seal guide portion 8a that fits into the mounting hole 10 is formed by pressing or the like. The rim valve 9
The seal guide portion 8a has a flange portion 9a that comes into contact with the outer end of the seal guide portion 8a, and a rubber 9b that protrudes from the flange portion 9a and elastically comes into close contact with the inner peripheral edge of the seal guide portion 8a. By forcibly inserting 9b into the seal guide portion 8a, the rim valve 9 is attached to the rim 1 so as to maintain a sealed state over the entire circumference of the seal guide portion 8a.
【００１５】図４において、リム１の外周面にシール板
８を密着、結合せしめるにあたっては、リム１を同軸に
覆う薄板円筒体８′を準備するとともに、リム１および
薄板円筒体８′を両側から挟む一対の密封治具１２1 ，
１３1 を準備する。これらの密封治具１２1 ，１３
1 は、薄板円筒体８′よりも大径である円板状に形成さ
れるものであり、一方の密封治具１２1 の中心部には減
圧孔１６1 が設けられている。In FIG. 4, when the seal plate 8 is closely attached to the outer peripheral surface of the rim 1, a thin plate cylindrical body 8'which coaxially covers the rim 1 is prepared, and the rim 1 and the thin plate cylindrical body 8'are provided on both sides. A pair of sealing jigs 12 1 sandwiched between
Prepare 13 1 . These sealing jigs 12 1 and 13
1 is formed in a disk shape having a diameter larger than that of the thin plate cylindrical body 8 ', and a depressurizing hole 16 1 is provided at the center of one sealing jig 12 1 .
【００１６】而して、リム１の溝部１ｄにおける各挿通
孔３…にスポークニップル６…をそれぞれ挿通、係止さ
せるとともにその係止状態を図示しない保持手段により
保持した状態で、リム１の両側面ならびに該リム１を同
軸に覆う薄板円筒体８′の両端を、両密封治具１２1 ，
１３1 にそれぞれ密接させる。これによりリム１および
薄板円筒体８′間に環状室１４を、またリム１の内方に
減圧室１５1 をそれぞれ形成する。その後、減圧孔１６
1 に接続した真空ポンプ等の減圧手段（図示せず）によ
り減圧室１５1 を減圧すると、各挿通孔３…および各ス
ポークニップル６…間の間隙を介して減圧室１５1 に連
通した状態にある環状室１４が減圧されることになり、
薄板円筒体８′の内外の圧力差により該薄板円筒体８′
は内方側に塑性変形し、リム１の外周面にその全周、全
幅にわたって密着、結合したシール板８が形成されるこ
とになる。Then, the spoke nipples 6 are inserted into and locked in the respective insertion holes 3 in the groove portion 1d of the rim 1 and both sides of the rim 1 are held by the holding means (not shown). Both ends of the thin plate cylindrical body 8 ′ that coaxially covers the surface and the rim 1 are fixed to both sealing jigs 12 1 ,
Close to 13 1 . As a result, an annular chamber 14 is formed between the rim 1 and the thin plate cylindrical body 8 ', and a decompression chamber 15 1 is formed inside the rim 1. After that, the pressure reducing hole 16
When the decompression chamber 15 1 is decompressed by a decompression means (not shown) such as a vacuum pump connected to 1 , the decompression chamber 15 1 is in a state of communicating with the decompression chamber 15 1 through the gap between each insertion hole 3 ... And each spoke nipple 6. A certain annular chamber 14 will be decompressed,
Due to the pressure difference between the inside and outside of the thin plate cylinder 8 ', the thin plate cylinder 8'
Is plastically deformed inward, and a seal plate 8 is formed on the outer peripheral surface of the rim 1 in close contact with and bonded to the entire circumference and width of the rim 1.
【００１７】次にこの実施例の作用について説明する
と、薄いシール板８がリム１の外周面の全周、全幅にわ
たって密着、結合されることにより、各挿通孔３…およ
びスポークニップル６…間の間隙がリム１の外方側に連
通することはなく、したがって従来のワイヤスポーク式
ホイルと同一外観を有したままでチューブレスタイヤ２
をリム１に装着することが可能となる。The operation of this embodiment will now be described. A thin seal plate 8 is tightly adhered and joined to the outer peripheral surface of the rim 1 over the entire circumference and width of the rim 1, so that the space between the insertion holes 3 ... And the spoke nipples 6 ... The gap does not communicate with the outer side of the rim 1, and therefore the tubeless tire 2 having the same appearance as that of the conventional wire spoke type wheel is obtained.
Can be attached to the rim 1.
【００１８】しかも、ワイヤスポーク７1 …の他端に
は、ハブ４に設けられた挿通孔５…に挿通、係止可能で
あるとともに、ドライバ等を係合してワイヤスポーク７
1 を回転操作するための係止溝７ｂを端面に有する係止
部７ａがそれぞれ設けられているので、リム１の外周面
にシール板８が密着、係合されることに伴ってスポーク
ニップル６…をリム１から脱着することが不可能となっ
ても、ワイヤスポーク７1 …自体の回転操作によるワイ
ヤスポーク７1 …の着脱が可能となる。Moreover, the other end of the wire spokes 7 1 can be inserted and locked in the insertion holes 5 provided in the hub 4, and the wire spokes 7 can be engaged with a driver or the like.
Since the locking portions 7a each having a locking groove 7b for rotating the 1 are provided on the end surface, the spoke nipple 6 is attached to the outer peripheral surface of the rim 1 when the seal plate 8 is closely contacted and engaged. Even if it becomes impossible to remove the wire spokes from the rim 1, the wire spokes 7 1 can be attached and detached by rotating the wire spokes 7 1 .
【００１９】またシール板８は、リム１の溝部１ｄにも
密着、結合されるものであり、溝部１ｄを埋めてしまう
ことはないので、チューブレスタイヤ２をリム１に装着
する際にチューブレスタイヤ２のビード２ａを溝部１ｄ
に落とし込むことが可能であり、チューブレスタイヤ２
のリム１への組付け性が損なわれることはない。The seal plate 8 is also closely attached to the groove portion 1d of the rim 1 and does not fill the groove portion 1d. Therefore, when the tubeless tire 2 is mounted on the rim 1, the tubeless tire 2 The bead 2a of the groove 1d
Tubeless tire 2 which can be dropped into
There is no loss in the assembling ability of the rim 1 to the rim 1.
【００２０】さらにシール板８をリム１の外周面に密
着、結合するにあたっては、リム１を同軸に覆う薄板円
筒体８′の内外に圧力差を生じさせることにより該薄板
円筒体８′を塑性変形させてリム１の外周面に密着せし
めるようにしたので、シール板８の成形と、密着結合作
業とを同時に行なうことができ、溶接等の作業を不要と
して製造を容易とすることができる。Further, when the seal plate 8 is tightly attached to the outer peripheral surface of the rim 1, a pressure difference is produced between the inside and the outside of the thin plate cylindrical body 8'which coaxially covers the rim 1 to thereby plasticize the thin plate cylindrical body 8 '. Since it is deformed so as to be brought into close contact with the outer peripheral surface of the rim 1, the molding of the seal plate 8 and the work of close contact can be performed at the same time, and the work such as welding is unnecessary and the manufacturing can be facilitated.
【００２１】図５は本発明の第２実施例を示すものであ
り、リム１の外周面にシール板８（図１ないし図３参
照）を密着、結合せしめるにあたって、ハブ４の各挿通
孔５…に係止部７ａをそれぞれ挿通、係止させたワイヤ
スポーク７1 …が、リム１の各挿通孔３…に挿通、係止
されたスポークニップル６…にそれぞれ螺合された状態
で、リム１を同軸に覆う薄板円筒体８′を塑性変形させ
るようにしてもよい。この際、リム１およびハブ４と、
薄板円筒体８′とを両側から挟む一対の密封治具１
２2 ，１３2 は、薄板円筒体８′よりも大径である円板
状に形成されるものであり、一方の密封治具１２2 のリ
ム１およびハブ４間に対応する部分には減圧孔１６2 が
設けられている。FIG. 5 shows a second embodiment of the present invention. When the seal plate 8 (see FIGS. 1 to 3) is closely attached to and joined to the outer peripheral surface of the rim 1, each insertion hole 5 of the hub 4 is inserted. The wire spokes 7 1 having the locking portions 7a inserted and locked thereinto are screwed into the spoke nipples 6 that are inserted and locked into the respective through holes 3 of the rim 1, It is also possible to plastically deform the thin plate cylindrical body 8'which covers 1 coaxially. At this time, the rim 1 and the hub 4,
A pair of sealing jigs 1 for sandwiching the thin plate cylindrical body 8'from both sides.
2 2 and 13 2 are formed in a disk shape having a diameter larger than that of the thin plate cylindrical body 8 ′, and the pressure reduction is applied to a portion of one sealing jig 12 2 between the rim 1 and the hub 4. A hole 16 2 is provided.
【００２２】而して、複数のワイヤスポーク７1 …を介
して連結状態にあるリム１およびハブ４の両側面、なら
びにリム１を同軸に覆う薄板円筒体８′の両端を、両密
封治具１２2 ，１３2 にそれぞれ密接させて、リム１お
よび薄板円筒体８′間に環状室１４を形成するととも
に、リム１の内方に減圧室１５2 を形成する。その後、
減圧孔１６2 からの吸引により減圧室１５2 を減圧する
と、各挿通孔３…および各スポークニップル６…間の間
隙を介して減圧室１５2 に連通した状態にある環状室１
４が減圧されることになり、薄板円筒体８′の内外の圧
力差により該薄板円筒体８′が内方側に塑性変形せしめ
られる。Then, both side surfaces of the rim 1 and the hub 4 connected to each other through the plurality of wire spokes 7 1 and both ends of the thin plate cylindrical body 8 ′ coaxially covering the rim 1 are fixed to both sealing jigs. An annular chamber 14 is formed between the rim 1 and the thin plate cylindrical body 8 ′ while closely contacting with 12 2 and 13 2 , respectively, and a decompression chamber 15 2 is formed inside the rim 1. afterwards,
When the decompression chamber 15 2 is decompressed by suction from the decompression hole 16 2 , the annular chamber 1 in a state of communicating with the decompression chamber 15 2 through the gap between each insertion hole 3 ... And each spoke nipple 6.
The pressure of the thin plate cylinder 8'is reduced, and the thin plate cylinder 8'is plastically deformed inward by the pressure difference between the inside and the outside of the thin plate cylinder 8 '.
【００２３】この第２実施例によっても上記第１実施例
と同様の効果を奏することができる。The second embodiment can also achieve the same effects as the first embodiment.
【００２４】図６は第３実施例を示すものであり、ハブ
４に一体に設けられた連結鍔部４ａ，４ａに設けられた
挿通孔５…には、スポークニップル１７…がそれぞれ挿
通、係止される。而してリム１の各挿通孔３…にそれぞ
れ挿通、係止されたスポークニップル６…に一端をそれ
ぞれ螺合させるワイヤスポーク７2 …の他端は、ハブ４
側のスポークニップル１７…にそれぞれ螺合される。し
かも各ワイヤスポーク７2 …の中間部には、該ワイヤス
ポーク７2 …の一端をリム１側のスポークニップル６…
に螺合するとき、ならびにワイヤスポーク７2 …の他端
をハブ４側のスポークニップル１７…に螺合するとき
に、スパナ等の工具を係合するための横断面非円形たと
えば六角形や四角形の係止部７ｃがそれぞれ設けられ
る。FIG. 6 shows a third embodiment, in which the spoke nipples 17 are inserted into and engaged with the insertion holes 5 provided in the connecting collars 4a, 4a formed integrally with the hub 4, respectively. Be stopped. Thus, the other end of the wire spokes 7 2, which are screwed at one end into the spoke nipples 6 that are respectively inserted and locked in the respective through holes 3 of the rim 1, have the hub 4
Are respectively screwed into the spoke nipples 17 on the side. Moreover Each wire spoke 7 2 ... intermediate portion of the wire spokes 7 2 ... end rim 1 side of the spoke nipple 6 ...
, And the other end of the wire spokes 7 2 are screwed into the spoke nipples 17 on the hub 4 side. The non-circular cross section for engaging a tool such as a spanner is hexagonal or square. Locking portions 7c are provided respectively.
【００２５】この実施例によれば、リム１の外周面にシ
ール板８が密着、係合されることに伴ってスポークニッ
プル６…をリム１から脱着することが不可能となって
も、ワイヤスポーク７2 …のスポークニップル６…，１
７…との螺合連結および螺合連結解除が可能であるの
で、ワイヤスポーク７2 の着脱が可能であり、しかも長
尺であるワイヤスポーク７2 のハブ４との連結及び連結
解除操作が容易となる。According to this embodiment, even if it becomes impossible to remove the spoke nipples 6 from the rim 1 due to the sealing plate 8 being in close contact with and engaged with the outer peripheral surface of the rim 1, the wire Spoke 7 2 Spoke nipple 6 ..., 1
7 can be screwed and unscrewed, so that the wire spokes 7 2 can be attached / detached, and the long wire spokes 7 2 can be easily connected / disconnected with the hub 4. Becomes
【００２６】以上、本発明の実施例を詳述したが、本発
明は上記実施例に限定されるものではなく、特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行なうことが可能である。Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible to do.
【００２７】たとえば薄板円筒体８′を塑性変形させて
リム１の外周面に密着させる際に、薄板円筒体８′の外
面に液圧を作用せしめることもできる。For example, when the thin plate cylindrical body 8'is plastically deformed and brought into close contact with the outer peripheral surface of the rim 1, hydraulic pressure can be applied to the outer surface of the thin plate cylindrical body 8 '.
【００２８】[0028]
【発明の効果】以上のように本発明方法に製造されたホ
イルによれば、周方向に間隔をあけた複数個所に挿通孔
が設けられた溝部を幅方向中央部に有するリムの外周面
の全幅、全周にわたって、各挿通孔にスポークニップル
がそれぞれ挿通、係止された状態で薄いシール板が密
着、結合され、各スポークニップルに一端がそれぞれ螺
合される複数のワイヤスポークの他端がハブにそれぞれ
連結されるので、従来のワイヤスポーク式ホイルと同一
外観として、チューブレスタイヤの装着を可能とすると
ともにチューブレスタイヤの組付け性を向上させること
ができる。The effects of the method manufactured by the method of the present invention as described above.
According to Ile , the entire width of the outer peripheral surface of the rim having the groove portion provided with the insertion holes at a plurality of positions spaced in the circumferential direction in the widthwise central portion, over the entire circumference, the spoke nipples are inserted into the respective insertion holes, In the locked state, a thin seal plate is closely attached and joined, and one end is screwed into each spoke nipple, and the other ends of the multiple wire spokes are connected to the hub respectively, so it is the same as the conventional wire spoke type wheel. As an external appearance, it is possible to mount the tubeless tire and improve the assembling property of the tubeless tire.
【００２９】また特に前記リムに薄板シール部を密着、
結合させるにあたって、少なくとも溝部の各挿通孔にス
ポークニップルをそれぞれ挿通、係止させた状態で、リ
ムおよび該リムを同軸に覆う薄板円筒体を両側から挟む
一対の密封治具にリムの両側面および薄板円筒体の両端
を密接させることにより、挿通孔およびスポークニップ
ル間の間隙を介してリムの内方側に通じる環状室をリム
および薄板円筒体間に形成しておき、リムの内方側の圧
力を薄板円筒体の外方側の圧力よりも低下させることに
より薄板円筒体の内外に生じる圧力差で該薄板円筒体を
塑性変形させてリムの外周面に密着、結合したシール板
を形成するので、シール板の成形と、密着結合作業とを
同時に行なうことができ、溶接等の作業を不要として製
造を容易とすることができる。[0029] Also in close contact with the thin plate sealing portion in particular before Symbol rim,
At the time of coupling, at least the spoke nipples are inserted and locked in at least the respective insertion holes of the groove portion, and with the pair of sealing jigs sandwiching the rim and the thin plate cylindrical body that coaxially covers the rim from both sides and the pair of sealing jigs. By closely contacting both ends of the thin plate cylindrical body, an annular chamber communicating with the inner side of the rim through the gap between the insertion hole and the spoke nipple is formed between the rim and the thin plate cylindrical body. By lowering the pressure below the pressure on the outer side of the thin plate cylinder, the thin plate cylinder is plastically deformed by the pressure difference generated inside and outside the thin plate cylinder to form a seal plate that is in close contact with and bonded to the outer peripheral surface of the rim. Therefore, the molding of the seal plate and the close bonding work can be performed at the same time, and the work such as welding is unnecessary and the manufacturing can be facilitated.
【図１】第１実施例のワイヤスポーク式チューブレスタ
イヤ用ホイルの横断面図FIG. 1 is a cross-sectional view of a wire-spoke tubeless tire wheel of a first embodiment.
【図２】図１の要部拡大図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】リムバルブ装着部付近の図２に対応する断面図FIG. 3 is a sectional view of the vicinity of a rim valve mounting portion, which corresponds to FIG.
【図４】製造過程を示す断面図FIG. 4 is a sectional view showing a manufacturing process.
【図５】第２実施例の図４に対応する断面図FIG. 5 is a sectional view corresponding to FIG. 4 of the second embodiment.
【図６】第３実施例の図１に対応する断面図FIG. 6 is a sectional view of a third embodiment corresponding to FIG.
１・・・リム １ｄ・・・溝部 ２・・・チューブレスタイヤ ３・・・挿通孔 ４・・・ハブ ６，１７・・・スポークニップル ７1 ，７2 ・・・ワイヤスポーク ７ｃ・・・係止部 ８・・・シール板 ８′・・・薄板円筒体 １２1 ，１２2 ，１３1 ，１３2 ・・・密封治具 １４・・・環状室1 ... rim 1d ... groove part 2 ... tubeless tire 3 ... insertion hole 4 ... hub 6,17 ... spoke nipples 7 1 , 7 2 ... wire spokes 7c ... Stop 8 ... Seal plate 8 '... Thin cylindrical body 12 1 , 12 2 , 13 1 , 13 2 ... Sealing jig 14 ... Annular chamber
Claims (2)
（３）が設けられた溝部（１ｄ）を幅方向中央部に有す
るリム（１）の外周面の全幅、全周にわたって、各挿通
孔（３）にスポークニップル（６）がそれぞれ挿通、係
止された状態で薄いシール板（８）が密着、結合され、
各スポークニップル（６）に一端がそれぞれ螺合される
複数のワイヤスポーク（７1 ，７2 ）の他端がハブ
（４）にそれぞれ連結されてなるワイヤスポーク式チュ
ーブレスタイヤ用ホイルの製造方法であって、 前記リム（１）にシール板（８）を密着、結合させるに
あたって、少なくとも溝部（１ｄ）の各挿通孔（３）に
スポークニップル（６）をそれぞれ挿通、係止させた状
態で、リム（１）および該リム（１）を同軸に覆う薄板
円筒体（８′）を両側から挟む一対の密封治具（１
２ 1 ，１３ 1 ；１２ 2 ，１３ 2 ）にリム（１）の両側面
および薄板円筒体（８′）の両端を密接させることによ
り、挿通孔（３）およびスポークニップル（６）間の間
隙を介してリム（１）の内方側に通じる環状室（１４）
をリム（１）および薄板円筒体（８′）間に形成してお
き、 リム（１）の内方側の圧力を薄板円筒体（８′）の外方
側の圧力よりも低下させることにより薄板円筒体
（８′）の内外に生じる圧力差で該薄板円筒体（８′）
を塑性変形させて、リム（１）の外周面に密着、結合し
たシール板（８）を形成する ことを特徴とする、ワイヤ
スポーク式チューブレスタイヤ用ホイルの製造方法。1. A rim (1) having a groove portion (1d) having insertion holes (3) at a plurality of circumferentially spaced intervals in the widthwise central portion thereof. While the spoke nipples (6) are respectively inserted and locked in the insertion holes (3), a thin seal plate (8) is closely attached and joined,
Wire spoked Ju the other ends of the wires spokes one end each spoke nipple (6) is screwed respectively (7 1, 7 2) are respectively connected to the hub (4)
-A method for manufacturing a foil for a breathless tire, comprising: attaching and sealing a seal plate (8) to the rim (1).
Hit at least each through hole (3) of the groove (1d)
The spoke nipples (6) are inserted and locked respectively
(1) and a thin plate that coaxially covers the rim (1) in a stationary state
A pair of sealing jigs (1) sandwiching the cylindrical body (8 ') from both sides.
2 1 , 13 1 ; 12 2 , 13 2 ) on both sides of the rim (1)
And by closely contacting both ends of the thin plate cylinder (8 ').
Between the insertion hole (3) and the spoke nipple (6)
An annular chamber (14) communicating with the inner side of the rim (1) through a gap
Is formed between the rim (1) and the thin plate cylinder (8 ').
The pressure on the inner side of the rim (1) to the outer side of the thin plate cylinder (8 ').
Thin cylinder by lowering the pressure on the side
The thin plate cylinder (8 ') is formed by the pressure difference generated inside and outside (8').
By plastically deforming the rim (1),
A method for producing a foil for a wire-spoke tubeless tire, characterized in that a sealing plate (8) is formed .
チューブレスタイヤ用ホイルの製造方法により製造され
たことを特徴とする、ワイヤスポーク式チューブレスタ
イヤ用ホイル。 2. The wire spoke type according to claim 1.
Manufactured by the method of manufacturing foil for tubeless tires
Characterized in that the the wire spoked wheel Le tubeless tires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16673694A JP3488744B2 (en) | 1994-07-19 | 1994-07-19 | Foil for wire spoke type tubeless tire and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16673694A JP3488744B2 (en) | 1994-07-19 | 1994-07-19 | Foil for wire spoke type tubeless tire and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0825901A JPH0825901A (en) | 1996-01-30 |
| JP3488744B2 true JP3488744B2 (en) | 2004-01-19 |
Family
ID=15836805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16673694A Expired - Fee Related JP3488744B2 (en) | 1994-07-19 | 1994-07-19 | Foil for wire spoke type tubeless tire and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3488744B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002160501A (en) * | 2000-11-28 | 2002-06-04 | Shigeki Marui | Wheel for cycle |
| CN1867463A (en) * | 2003-10-17 | 2006-11-22 | Castalloy生产私人有限公司 | Tubeless wire spoked wheel |
| US8967731B2 (en) * | 2011-02-23 | 2015-03-03 | Shimano Inc. | Spoke attachment structure |
-
1994
- 1994-07-19 JP JP16673694A patent/JP3488744B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0825901A (en) | 1996-01-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
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