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    • 7. 发明申请
    • PERSON SUPPORT APPARATUS WITH PIVOTING BACKREST
    • 个人支持设备配备背包
    • US20160227929A1
    • 2016-08-11
    • US14984403
    • 2015-12-30
    • Stryker Corporation
    • Anish PaulMatthew A. CutlerTyler Joseph EthenChristopher S. Hough
    • A47C1/022A61G13/08A47C17/64A61G1/017A47C7/40A47C17/16
    • A61G5/10A61G5/1059A61G5/122A61G5/125A61G5/127A61G2203/10A61G2203/74
    • A chair includes a backrest that pivots with respect to the seat in a manner that improves the occupant's experience during the transition from an upright position to a reclined position. During pivoting of the backrest with respect to the seat, the backrest moves in a manner having an instantaneous center of rotation that does not remain stationary during the pivoting of the backrest. In some embodiments, the instantaneous center of rotation begins at a location lower than a height of the seat and moves backward as the backrest pivots from the upright position to the reclined position. The movement of the instantaneous center of rotation follows a smoothly curved path that has a continuous first derivative and, in some embodiments, continuous higher order derivatives as well. The movement may be effectuated via pins coupled to the backrest that ride in smoothly curved channels defined in a seat frame.
    • 椅子包括靠靠座椅枢转的靠背,以便在从直立位置向倾斜位置的过渡期间改善乘客体验的方式。 在靠背相对于座椅的枢转期间,靠背以具有瞬时转动中心的方式移动,其在靠背枢转期间不保持静止。 在一些实施例中,瞬时转动中心从低于座椅高度的位置开始,并且当靠背从直立位置枢转到倾斜位置时向后移动。 瞬时旋转中心的运动遵循具有连续一阶导数的平滑弯曲的路径,并且在一些实施例中也是连续的高阶导数。 该运动可以通过联接到靠背上的销来实现,所述销靠在座椅框架中限定的平滑弯曲的通道中。