PROBLEM TO BE SOLVED: To provide a headrest tilting device capable of improving safety even while improving headrest productivity and reducing weight.SOLUTION: The headrest tilting device 30 includes a ratchet plate 31 including a pair of left and right vertical wall parts 31a in which a ratchet hole 31ahaving a plurality of engaging teeth 31ais formed in its inner peripheral part, a front plate 32, front plate pressing means 37, a lock plate 33 having engaging pieces 33aprovided to project outward from both left and right side edges, rotatably supported with respect to the front plate 32, having a length from its rotational center to a tip set larger by ten times than the tilting angle pitch of the engaging tooth 31a, and rotated at a rotational angle of 15° or less with respect to the front plate 32, lock pressing means 34, lock releasing means 35 for temporarily releasing engagement between the engaging tooth 31aand the engaging piece 33a, and a resin cover 36.SELECTED DRAWING: Figure 1

    【課題】ヘッドレストの生産性の向上及び軽量化を可能としながらもその安全性を高めることのできるヘッドレスト用傾倒装置を提供する。【解決手段】ヘッドレスト用傾倒装置30を、その内周部に複数の係合歯31a1を有するラチェット孔31a2が形成された左右一対の縦壁部31aを備えたラチェットプレート31と、フロントプレート32と、フロントプレート付勢手段37と、係合片33a1がその左右両側縁から外方に突出して設けられてフロントプレート32に対して回動可能な状態で支持され、その回動中心から先端までの長さが係合歯31a1の傾倒角度ピッチの10倍以上とされて15°以下の回動角度でフロントプレート32に対して回動するロックプレート33と、ロック付勢手段34と、係合歯31a1と係合片33a1との係合を一時的に解除するロック解除手段35と、樹脂カバー36とで構成した。【選択図】図1


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    Title :

    HEADREST TILTING DEVICE AND HEADREST


    Additional title:

    ヘッドレスト用傾倒装置及びヘッドレスト


    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 / A47C Stühle , CHAIRS



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