PROBLEM TO BE SOLVED: To provide a dynamic damper having a structure capable of restricting an eccentric state of a vibration ring without applying any exclusive stopper member and easily discharging slurry immersed into damper to an outside of the damper.SOLUTION: This invention relates to a dynamic damper in which a vibration ring is connected to an outer circumference side of a hub through a resilient body made of rubber-like resilient body. The hub has integrally a hub main body fixed to a shaft and an outward facing flange part. The vibration ring has integrally a vibration ring main body and a cylindrical part. The cylindrical part is arranged at the outer circumference side of the outward facing flange part and the inner circumferential surface of the cylindrical part is provided with a plurality of inward protrusion stoppers for use in setting a fine radial clearance between it and the outer circumferential end of the outward facing flange part. A circumferential upper location other than the location where the stoppers at the inner circumferential surface of the cylindrical part are placed is provided with a tapered slurry discharging surface where the inner diameter size is gradually expanded toward the extremity end of the cylindrical part.

    【課題】専用のストッパ部材を備えることなく振動リングの偏芯を規制することができ、しかもダンパ内部へ侵入した泥水をダンパ外部へ排出しやすい構造のダイナミックダンパを提供する。【解決手段】ハブの外周側にゴム状弾性体製の弾性体を介して振動リングを連結してなるダイナミックダンパである。ハブは、シャフトに固定されるハブ本体および外向きフランジ部を一体に有する。振動リングは、振動リング本体および筒状部を一体に有する。筒状部は、外向きフランジ部の外周側に配置され、筒状部の内周面に、外向きフランジ部の外周端部との間に微少な径方向間隙を設定する内向き突起状のストッパが円周上複数設けられている。筒状部の内周面におけるストッパを設けた部位以外の円周上部位には、筒状部の先端部へ向けて内径寸法が徐々に拡大する向きに傾斜するテーパ面状の泥水排出面が設けられている。【選択図】図1


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    Title :

    DYNAMIC DAMPER


    Additional title:

    ダイナミックダンパ


    Contributors:

    Publication date :

    2015-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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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