Door hinge with movable and fixed cams
    1.
    发明授权
    Door hinge with movable and fixed cams 失效
    门铰链带可动和固定凸轮

    公开(公告)号:US5109571A

    公开(公告)日:1992-05-05

    申请号:US595371

    申请日:1990-10-10

    摘要: According to the invention, there is provided a door hinge comprising a spring that plays the role of both a torsion spring and a compression spring, wherein its resilient force is used for axially pressing a movable cam against a matching fixed cam it comprises and thereby facilitating the opening and closing motion of the door with which it is used by giving said cams such specific configurations that the spring accelerates the opening motion of the door from a given angular position of the door and locks the door at a particular open position and at a closed position. Since a door using such a hinge that comprises a spring whose resilient force constantly biases the door to open can be either opened to any desired angle or closed and sustained there under a locked condition when the rotary shaft of the hinge is firmly connected to the door, it can be used for a flap door or another vertically rotatable door such as a toilet lid to sustain the door to an open position under a locked condition even if the resilient force of the spring is nullified at that position and the door is liable to be pushed back by an obstacle such as a wire located behind the toilet assembly comprising the lid. Therefore, the door is protected against any turning effort and other forces which are unintentionally applied to the door.

    摘要翻译: 根据本发明,提供了一种门铰链,其包括起到扭簧和压缩弹簧作用的弹簧,其弹性力用于将可动凸轮轴向按压在其包括的匹配固定凸轮上,从而有助于 通过向所述凸轮提供使用这种凸轮的门的打开和关闭运动,使得弹簧加速门的给定角度位置的门的打开运动并将门锁定在特定的打开位置处 关闭位置。 由于使用这种铰链的门,其中弹簧的弹力一直偏向门以打开,弹簧可以在锁定状态下打开到任何所需的角度或闭合并保持在其中,当铰链的旋转轴牢固地连接到门 ,它可以用于襟翼门或另一个可垂直旋转的门,例如马桶盖,以在锁定状态下将门维持在打开位置,即使弹簧的弹性在该位置被消除,并且门易于 被诸如位于包括盖的马桶组件后面的线的障碍物推回。 因此,门被保护免受任何无意的施加到门上的转动和其他力。

    Damper device for an automatic folding chair
    4.
    发明授权
    Damper device for an automatic folding chair 失效
    自动折叠椅减震器

    公开(公告)号:US5257852A

    公开(公告)日:1993-11-02

    申请号:US909399

    申请日:1992-07-08

    IPC分类号: A47C1/121 A47C7/56 A47C7/60

    CPC分类号: A47C1/121 A47C7/56 A47C7/60

    摘要: A damper device for an automatic folding chair enables the seat of the chair to be turned downward to a ready-for use position without being subjected to any braking force when it is lightly pushed down. When the use leaves the seat in the ready-for-use position, it automatically and slowly returns to an upright position under a braking effort exerted thereto. Said damper device comprises a power unit 2 and a damper unit 1 for raising the seat E slowly from the ready-for-use position to the upright position, said damper unit 1 comprising a casing 3 that rotates around a fixed shaft 4 of the chair in association with the rising movement of the seat E, a movable sleeve 7 rotatably disposed within said casing 3, viscous fluid C filled in the space between the movable sleeve 7 and the casing 3 and a one-way clutch 10 constituted by a coil spring that functionally couples the movable sleeve 7 and the fixed shaft 4 when the seat E is turned upward by the resilient force of the power unit 2 and releases the functional coupling of the movable sleeve 7 and the fixed shaft 4 when the seat E is turned downward.

    摘要翻译: 用于自动折叠椅的阻尼器装置使得椅子的座椅能够在轻轻按下时不会受到任何制动力的转动而向下转动到即时使用位置。 当使用者将座椅放置在即用型位置时,它会在施加到其上的制动力下自动缓慢地返回到直立位置。 所述阻尼器装置包括动力单元2和用于将座椅E从即用型位置缓慢升高到直立位置的阻尼器单元1,所述阻尼单元1包括围绕椅子的固定轴4旋转的壳体3 与座椅E的上升运动相关联,可旋转地设置在所述壳体3内的可移动套筒7,填充在可动套筒7和壳体3之间的空间中的粘性流体C和由螺旋弹簧构成的单向离合器10 当座椅E通过动力单元2的弹力向上转动时,功能性地联接可动套筒7和固定轴4,并且当座椅E向下转动时释放可动套筒7和固定轴4的功能联接 。