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    Swivel seat latch mechanism
    1.
    发明授权
    Swivel seat latch mechanism 失效
    SWIVEL座椅锁定机构

    公开(公告)号：US3860283A

    公开(公告)日：1975-01-14

    申请号：US39785073

    申请日：1973-09-17

    Applicant: GEN MOTORS CORP

    Inventor： COLAUTTI ALBERT J

    IPC: B60N2/14 ,  B61D33/00 ,  B60N1/04

    CPC classification number: B61D33/00 ,  B60N2/146

    Abstract: A disc-shaped member is attached to a vehicle seat and is in turn rotatably mounted on a base member secured to the vehicle floor by a conventional fore and aft seat adjuster. A locking bar has its forward end fixedly attached to the base member and is cantilevered generally longitudinally of the vehicle. The other end of the cantilevered locking bar has an upstanding projection which is engaged in a notch in the peripheral edge of the discshaped member to prevent rotation of the disc-shaped member relative the base member. An L-shaped operating lever extends laterally of the vehicle seat and has a depending leg. A first pivot pivotally mounts the depending leg on the base member, and a second pivot pivotally connects the operating lever with an integral laterally extending arm of the cantilevered locking bar. When the operating lever is pivoted about its first pivot, the second pivot is translated through an arc and the cantilevered locking bar is flexed laterally to carry the upstanding projection out of engagement of the notch and permit rotary movement of the vehicle seat. In order to minimize the vertical component of flexure of the cantilevered locking bar as the second pivot is moved through its arcuate path, the first pivot is located in a line which perpendicularly bisects the chord of the arc through which the second pivot is translated during movement of the cantilevered locking bar from its unflexed to its fully flexed position in which the seat is unlatched for rotary movement.

    Abstract translation: 盘形构件附接到车辆座椅，并且通过常规的前后座椅调节器又可旋转地安装在固定到车辆地板的基座构件上。 锁定杆的前端固定地连接到基座构件上，并且大体纵向地悬挂在车辆上。 悬臂式锁定杆的另一端具有直立的突出部，该突出部与盘形部件的周边边缘处的凹口接合，以防止盘形部件相对于基底部件旋转。 L形操作杆横​​向延伸到车辆座椅上并具有悬垂腿。 第一枢轴将悬挂臂枢转地安装在基座构件上，并且第二枢轴将操作杆与悬臂锁定杆的整体横向延伸的臂枢转地连接。 当操作杆围绕其第一枢轴枢转时，第二枢轴通过弧线平移，并且悬臂锁定杆横向弯曲以将直立的突出部伸出脱离凹口的接合并允许车辆座椅的旋转运动。 为了在第二枢轴移动通过其弓形路径时最小化悬臂锁定杆的弯曲的垂直分量，第一枢轴位于垂直方向平分弧线的弦线，第二枢轴在运动期间被平移通过该线 的悬臂锁定杆从其未弯曲到其完全弯曲的位置，在该位置座椅被拆开以用于旋转运动。

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