PROBLEM TO BE SOLVED: To improve durability by enhancing airtightness of a seal part, in a tubeless spoke wheel for sealing by providing an O ring between a nipple and a rim, by inserting the nipple by providing a through-hole in the rim.SOLUTION: The base end of a spoke 18 is locked on a hub, and the other end male screw 52 is fastened to a female screw 43 provided in a nipple boss part 41 of a nipple 40 for penetrating through a rim 21. An annular seal groove 45 is provided on a seat surface 44 of a nipple head part 42, and its seal groove bottom part 46 is formed as a plane orthogonal to the nipple axis L. The rim 21-side is formed with a seal surface 26 facing the seal groove bottom part and parallel thereto. An annular seal 48 is fitted to the annular seal groove 45, and the nipple boss part 41 is inserted into a nipple hole 27, and when fastening the spoke 18, since the annular seal 48 is uniformly crushed between the seal groove bottom part 46 of parallel two planes and the seal surface 26, durability is enhanced.SELECTED DRAWING: Figure 4

    【課題】リムに貫通孔を設けてニップルを通すとともに、ニップルとリムの間にO−リングを設けてシールするチューブレススポークホイールにおいて、シール部の気密性を高め耐久性を向上させる。【解決手段】スポーク18の基端をハブに係止し、他端の雄ネジ52をリム21を貫通するニップル40のニップルボス部41に設けた雌ネジ43に締結する。ニップル頭部42の座面44に環状シール溝45を設け、そのシール溝底部46をニップル軸線Lと直交する平面にする。リム21側には、シール溝底部に対面し、これに平行なシール面26を形成する。環状シール溝45に環状シール48を嵌合して、ニップルボス部41をニップル孔27へ通し、スポーク18と締結すると、環状シール48は平行する2平面のシール溝底部46とシール面26の間で均一につぶされるため、耐久性を高める。【選択図】図4


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    Title :

    STRUCTURE OF TUBELESS SPOKE WHEEL


    Additional title:

    チューブレススポークホイールの構造


    Contributors:

    Publication date :

    2017-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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