To provide a lifter device for locking seat height adjustment by engagement with respect to an internal tooth of a support member of a pole, which is shifted towards a perfect engagement state in a lock state even if an engagement state with respect to the internal tooth of the pole becomes imperfect.SOLUTION: In a state where an engaging end part 33c is in engagement with an internal tooth 34, a rotary plate 31 receives rotation force of a rotary plate 31 locked by the engagement in a rotation direction, and includes a wall 31g1 which presses a pole 33 toward a direction abutting a tooth surface of the engaging end part 33c being in an engagement state to a tooth surface of the internal tooth 34. The wall 31g1 is brought in contact with an outer peripheral surface 33d of the pole 33, is formed in an inclined plane for generating force to move the pole 33 in a direction for deepening engagement depth with respect to the internal tooth 34 of the engaging end part 33c by the pressing, and an inclination angle of the inclined plane is made to be larger than a friction angle of the engaging end part 33c with respect to the tooth surface of the internal tooth 34.SELECTED DRAWING: Figure 39

    【課題】ポールの支持部材の内歯に対する噛合によりシートの高さ調整をロックするリフタ装置において、ロック状態では、ポールの内歯に対する噛合状態が不完全となっても、完全な噛合状態へ向けて移行させる。【解決手段】係合端部33cが内歯34に噛合した状態で、その噛合によりロックされている回転方向への回転プレート31の回転力を受けて、回転プレート31が、噛合状態にある係合端部33cの歯面を内歯34の歯面に当接する方向へ向けてポール33を押圧する壁31g1を備え、壁31g1は、ポール33の外周面33dに当接して、その押圧により係合端部33cの内歯34に対する噛合深さを深める方向へポール33を移動する力を発生させる傾斜面とされており、且つその傾斜角度が内歯34の歯面に対する係合端部33cの摩擦角より大きくされている。【選択図】図39


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    Title :

    LIFTER DEVICE


    Additional title:

    リフタ装置


    Contributors:

    Publication date :

    2020-05-07


    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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