A pumping device is disclosed for a vehicle seat, including a clutch means for receiving rotational force from the outside and transferring power to a link means of a seat cushion. The clutch means includes a clutch block rotated by the rotational force transferred from the outside, a clutch drum which is provided with the clutch block in an inside space and transfers the power to the link means of the seat cushion while rotating by the rotational force transferred from the clutch block, and a plurality of fitting pieces interposed between an outer peripheral surface of the clutch block and an inner peripheral surface of the clutch drum and transferring the rotational force of the clutch block to the clutch drum. The clutch block has a protrusion portion protruding radially from the outer peripheral surface and thus stress concentration is not generated on the plurality of fitting pieces.


    Access

    Download


    Export, share and cite



    Title :

    Pumping device for vehicle seat


    Contributors:
    KIM JAE-HO (author) / CHOI JIN-HO (author)

    Publication date :

    2017-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



    VEHICLE SEAT PUMPING DEVICE

    LEE YOUNG SUN / CHANG SEUNG HUN | European Patent Office | 2017

    Free access

    VEHICLE SEAT PUMPING DEVICE

    CHOI HYUNG IL / CHAE SU MIN | European Patent Office | 2016

    Free access

    PUMPING DEVICE OF VEHICLE SEAT

    LEE YOUNG SUN | European Patent Office | 2022

    Free access

    PUMPING DEVICE FOR VEHICLE SEAT

    JEONG SEUNG YOUL | European Patent Office | 2016

    Free access

    PUMPING DEVICE FOR VEHICLE SEAT

    JEONG SEUNG YOUL | European Patent Office | 2015

    Free access