PROBLEM TO BE SOLVED: To provide a seat lifter structure which suppresses the relative rotation of an output shaft with respect to an input shaft caused by the weight of a seat and a seated occupant at a descending operation of a seat cushion, and can reduce an operation force at an ascending operation of the seat cushion.SOLUTION: A seat lift structure 20 comprises: an input shaft 66 which is rotatably arranged at a seat cushion 24 of a seat 22 arranged on a vehicle body floor 40, and rotates around an axial line when inputted with an operation force; an output shaft 58 which is connected to the input shaft 66, and rotates to the same direction when the input shaft 66 rotates; a link mechanism 46 which is connected to the output shaft 58, moves a seat cushion 24 downwardly in a vehicle body vertical direction when the output shaft 58 rotates in a first direction, and moves the seat cushion 24 upwardly in the vehicle vertical direction when the output shaft rotates to a second direction; and an abutment part 72A which is arranged at the output shaft 58, and abuts on a friction face 70A formed at the seat cushion 24 when the input shaft 66 rotates to the first direction.SELECTED DRAWING: Figure 8

    【課題】シートクッションの下降操作時にシート及び着座者の重さによって出力軸が入力軸に対して相対回転するのを抑制し、かつ、シートクッションの上昇操作時の操作力を低減できるシートリフタ構造を提供する。【解決手段】シートリフタ構造20は、車体フロア40上に設置されるシート22のシートクッション24に回転可能に設けられ、操作力が入力されると軸線回りに回転する入力軸66と、入力軸66に連結され入力軸66が回転すると同じ方向に回転する出力軸58と、出力軸58に連結され、出力軸58が第1の方向に回転するとシートクッション24を車体上下方向の下方に移動させ、第2の方向に回転するとシートクッション24を車体上下方向の上方に移動させるリンク機構46と、出力軸58に設けられ入力軸66が第1の方向に回転するとシートクッション24に設けられた摩擦面70Aに当接する当接部72Aと、を備える。【選択図】図8


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    Title :

    SEAT LIFTER STRUCTURE


    Additional title:

    シートリフタ構造


    Contributors:

    Publication date :

    2016-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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