Provided is a rotary damper on which the timing for generating a damping torque can be set freely. Groove-like bypass passages (805) that are longer in the circumferential direction than vanes (501) are formed in the upper surface (803) of a torque regulation plate (8) arranged on the bottom part (201) of a cylindrical circular chamber (200). When the rotor (5) rotates in a first rotational direction R1, if both end faces (508a, 508b) of the vanes (501) are positioned within a range of the respective bypass passages (805), each area (218) and the corresponding area (217) are communicated via the corresponding bypass passage (805), enabling movement of a viscous fluid (6) from the area (217) to the area (218). Subsequently, if the rotor (5) rotates further in the first rotational direction R1 and one or both of the end faces (508a, 508b) of each vane (501) is outside of the range of the corresponding bypass passage (805), each area (218) and the corresponding area (217) are not communicated via the corresponding bypass passage (805), and the viscous fluid (6) is unable to move from each area (217) to the corresponding area (218).


    Access

    Download


    Export, share and cite



    Title :

    Rotary damper


    Contributors:

    Publication date :

    2021-10-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16F SPRINGS , Federn / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



    ROTARY DAMPER

    WILLEMS MARCO | European Patent Office | 2015

    Free access

    ROTARY DAMPER

    BREWER PAUL / RAVAL REG / BEKIRCAN SUAT | European Patent Office | 2020

    Free access

    ROTARY DAMPER

    WILLEMS MARCO | European Patent Office | 2015

    Free access

    Rotary damper

    BATTLOGG STEFAN | European Patent Office | 2022

    Free access

    ROTARY DAMPER

    WILLEMS MARCO | European Patent Office | 2017

    Free access