A seat reclining apparatus (10) includes a lower arm (11), an upper arm (12), plural pawls (31A, 31B, 31C, 31D) being movable in a radial direction along guide walls of the lower arm (11) therewithin and including external teeth (44, 47) being engageable with and disengageable from internal teeth (23) of the upper arm, a cam (32) contacting and pressing the pawls in a direction of meshing the external teeth with the internal teeth when the cam is rotated in a locking direction, a biasing member (34), whose first and second end portions are engaged with an accommodating portion and the cam, respectively, biasing the cam in the locking direction, a restricting protrusion portion (80) formed on a surface (32d) of the cam facing the lower arm and slidably contacting an inner surface of the accommodating portion in order to avoid an eccentricity of the cam, and an engagement protruding portion (32b) provided on the surface at a position radially inwardly of the restricting protrusion portion.


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    Title :

    Seat reclining apparatus


    Additional title:

    Sitzneigungsverstellungsvorrichtung
    Appareil d'inclinaison de siège


    Contributors:

    Publication date :

    2018-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



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