PROBLEM TO BE SOLVED: To provide a lock mechanism that is less unlikely to cause unintended release when force in a rotating direction is applied from outside, in an arm rest or another seat back disposed so as to be rotatable with respect to a seat back of a vehicle seat or a vehicle body.SOLUTION: A seat back in a vehicle seat comprises: rock members 50R, 50L disposed on respective arm rests mounted so as to be rotatable around a rotation axis P1 extending in a longitudinal direction with respect to a seat back and movable in a longitudinal direction on a parallel axis P2 extending parallel to the rotation axis P1; and a slide member 80 movable in a direction perpendicular to the parallel axis P2 while engaging with one end of each lock member 50R, 50L. The other end of each lock member 50R, 50L projects from the arm rest by movement of the slide member 80, and selectively adopt a state in which the other end engages with a lock member engagement hole 35d and a patch hole 35e1 of a support bracket 35 mounted on the seat back, or a state in which the other end engages with neither of them.SELECTED DRAWING: Figure 4

    【課題】乗物用シートのシートバック又は乗物ボデーに対して回転可能に配設されたアームレスト又は他のシートバックにおいて、外部から回転方向の力が印加されたときに意図しない解除が発生しにくいロック機構を提供する。【解決手段】シートバックに対して左右方向に延びる回転軸P1を中心に回転可能に取付けられたアームレストに配設されており、回転軸P1と平行に延びる平行軸P2上を左右方向に移動可能なロック部材50R、50Lと、ロック部材50R、50Lの一端部に係合して平行軸P2に対して垂直方向に移動可能なスライド部材80と、を備える。スライド部材80の移動によってロック部材50R、50Lの他端部がアームレストから突出して、シートバックに取付けられた支持ブラケット35のロック部材係合孔35d及びパッチ孔35e1に係合する状態と係合しない状態を選択的に採択可能に構成されている。【選択図】図4


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    Title :

    SEAT BACK IN VEHICLE SEAT AND LOCK MECHANISM FOR ARM REST


    Additional title:

    乗物用シートにおけるシートバック又はアームレストのロック機構


    Contributors:

    Publication date :

    2017-07-20


    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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