To provide a power transmission shaft structure which can suppress an increase of weight while fixing a dynamic damper into a fiber-reinforced plastic power transmission shaft.SOLUTION: A power transmission shaft structure 1A comprises a hollow power transmission shaft 10 which is formed of fiber-reinforced plastic, and a dynamic damper 20 held to an internal peripheral face 10A of the power transmission shaft 10. The dynamic damper 20 has an annular tubular part 30 which is changeable in an outside diameter, an inner weight 40 arranged at an axial core of the tubular part 30, and an elastic body 50 interposed between the tubular part 30 and the inner weight 40, and integrally connecting the tubular part 30 and the inner weight 40. The tubular part 30 has a protrusion 31 protruding to the outside of the tubular part 30 in a radial direction at a part of an external peripheral face of the tubular part 30. The power transmission shaft 10 has a recess 11 into which the protrusion 31 is fit at a part of an internal peripheral face 10a of the power transmission shaft 10.SELECTED DRAWING: Figure 1

    【課題】繊維強化プラスチック製の動力伝達軸内にダイナミックダンパを固定しつつ、重量の増加を抑制可能な動力伝達軸構造体を提供すること。【解決手段】動力伝達軸構造体1Aは、繊維強化プラスチックによって形成された中空状の動力伝達軸10と、動力伝達軸10の内周面10aに保持されたダイナミックダンパ20と、を備えている。ダイナミックダンパ20は、外径を変更可能な環状の管状部30と、管状部30の軸心に配置されたインナウエイト40と、管状部30とインナウエイト40との間に介装され、管状部30とインナウエイト40とを一体に連結した弾性体50と、を有している。管状部30は、管状部30の外周面の一部に、管状部30の径方向外側に突出した凸部31を有している。動力伝達軸10は、動力伝達軸10の内周面10aの一部に、凸部31が嵌る凹部11を有している。【選択図】図1


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    Titel :

    POWER TRANSMISSION SHAFT STRUCTURE


    Weitere Titelangaben:

    動力伝達軸構造体


    Beteiligte:
    NAKAYAMA TAKAHIRO (Autor:in) / SHEN DA ZHEN (Autor:in)

    Erscheinungsdatum :

    2022-10-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16F SPRINGS , Federn / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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