To enable reduction of a block height in a vehicle seat in which a movable part of a seat cushion is moved vertically.SOLUTION: A seat cushion 2 of a vehicle seat 1 includes: cushion side frames 11, 12 serving as base parts; a cushion pan 13 which can move relative to the cushion side frames 11, 12 in a seat vertical direction; and a driving part 4 which vertically moves the cushion pan 13. The driving part 4 includes: a pinion 36 into which driving force is input; a first arm 30 rotatably supported by the cushion side frame 11 and having a sector gear 38, which has an arc shape formed with a rotary shaft 32 set to a pitch circle center, and an engagement part 34, which engages with the cushion pan 13; and one or more intermediate gears 37 which reduce a speed of the driving force input to the pinion 36 and transmit the driving force to the sector gear 38. A distance r1 between the rotary shaft 32 of the first arm 30 and the engagement part 34 is larger than a pitch circle radius r2 of the sector gear 38.SELECTED DRAWING: Figure 3

    【課題】シートクッションの可動部が上下動される乗物用シートにおいて、ブロックハイトの低減を可能とする。【解決手段】乗物用シート1のシートクッション2が、ベース部としてのクッションサイドフレーム11,12と、クッションサイドフレーム11,12に対してシート上下方向に可動なクッションパン13と、クッションパン13を上下動させる駆動部4と、を備え、駆動部4は、駆動力が入力されるピニオン36と、クッションサイドフレーム11に回動可能に支持されており、回動軸32をピッチ円中心とする円弧状のセクターギア38と、クッションパン13に係合する係合部34とを有する第1アーム30と、ピニオン36に入力された駆動力を減速してセクターギア38に伝達する一つ以上の中間歯車37と、を含み、第1アーム30の回動軸32と係合部34との間の距離r1は、セクターギア38のピッチ円半径r2よりも大きい。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    VEHICLE SEAT


    Additional title:

    乗物用シート


    Contributors:

    Publication date :

    2019-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



    Vehicle seat, and seat frame for vehicle seat

    FUJITA SATOSHI / ITOI HIROYUKI | European Patent Office | 2015

    Free access

    Seat cushion for vehicle seat and vehicle seat

    FUJITA ETSUNORI / KAWASAKI SEIJI / HIRAMOTO YUTA et al. | European Patent Office | 2021

    Free access

    VEHICLE SEAT, AND SEAT FRAME FOR VEHICLE SEAT

    ITOI HIROYUKI / NIIMURA TAKAHIRO | European Patent Office | 2015

    Free access

    SEAT CUSHION FOR VEHICLE SEAT AND VEHICLE SEAT

    FUJITA ETSUNORI / KAWASAKI SEIJI / HIRAMOTO YUTA et al. | European Patent Office | 2020

    Free access

    Seat component for a vehicle seat and vehicle seat

    BARANOWSKI THOMAS / RAUSCH JESSICA REBECCA / SCHEER VOLKER et al. | European Patent Office | 2023

    Free access