To provide a front fork capable of restraining an attenuating force from being excessive even when it is stroked at high speed.SOLUTION: A front fork F comprises an expansion body 1 having a vehicle body side tube 2 and a wheel side tube 3, and a damper D housed in the expansion body 1. The damper D comprises: a cylinder 10; a shaft member 13 inserted in the cylinder 10; a leaf valve 14 fixed to the shaft member 13 and allowing axial flexion; and a valve seat member 15 mounted to the shaft member 13, blocking the cylinder 10 into two operation chambers (R2, L), and having a port 15e communicating the operation chambers (R2, L) with each other, and a seat part 15b opposed to an outer periphery of the leaf valve 14. The valve seat member 15 has an elastic seal ring 15c mounted to the outer periphery and tightly contacting an inner periphery of the cylinder 10.SELECTED DRAWING: Figure 2

    【課題】高速でストロークしても減衰力が過大になるのを抑制できるフロントフォークを提供する。【解決手段】フロントフォークFは、車体側チューブ2と車輪側チューブ3とを有する伸縮体1と、伸縮体1内に収容されるダンパDとを備え、ダンパDは、シリンダ10と、シリンダ10内に挿入される軸部材13と、軸部材13に固定されて軸方向への撓みが許容されるリーフバルブ14と、軸部材13に取り付けられてシリンダ10内を2つの作動室(R2,L)とに区画するとともに、作動室(R2,L)同士を連通するポート15eと、リーフバルブ14の外周に対向する対向座部15bとを有する弁座部材15とを備え、弁座部材15は、外周に装着されてシリンダ10の内周に密着する弾性のシールリング15cを有する。【選択図】 図2


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    Title :

    DAMPER AND FRONT FORK


    Additional title:

    ダンパおよびフロントフォーク


    Contributors:

    Publication date :

    2024-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B62K Fahrräder , CYCLES



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