Chair having adjustable lumbar support
    10.
    发明授权
    Chair having adjustable lumbar support 有权
    椅子有可调节的腰部支撑

    公开(公告)号:US6079785A

    公开(公告)日:2000-06-27

    申请号:US228726

    申请日:1999-01-12

    IPC分类号: A47C7/46 A47C3/025

    CPC分类号: A47C7/462

    摘要: A back construction for a chair includes a back shell having a plurality of horizontal bands defining a flexible lumbar section, with the back shell including non-parallel guides defined along its edges. A vertically adjustable lumbar support includes a panel body located at the flexible lumbar section, a bent wire member that engages the panel body and that is stretchable laterally, and opposing handles attached to ends of the bent wire member that engage the non-parallel guides. The opposing handles slidingly follow the guides and are movable between a first position where the bent wire member is flexed to a first width dimension, and a second position where the bent wire member is flexed to a second width dimension different than the first width dimension. Slots in the panel body retain the bent wire member to the panel body, but permit the bent wire member to be stretched horizontally during vertical adjustment of the lumbar support. The panel body includes generously radiused upper and lower edges shaped to slide over top and bottom edges of the plurality of horizontal bands without catching on and unacceptably twisting individual ones of the bands when the vertically adjustable lumbar support is vertically adjusted.

    摘要翻译: 用于椅子的后部结构包括具有限定柔性腰部的多个水平带的后壳,后壳包括沿着其边缘限定的不平行的引导件。 垂直可调节的腰部支撑件包括位于柔性腰部处的面板体,弯曲的线构件,其与面板本体接合并且可横向延伸,以及相对的手柄,其连接到弯曲的线构件的与非平行导轨接合的端部。 相对的手柄滑动地跟随引导件,并且可以在弯曲的线构件弯曲到第一宽度尺寸的第一位置和弯曲的线构件弯曲到不同于第一宽度尺寸的第二宽度尺寸的第二位置之间移动。 面板主体中的插槽将弯曲的线构件保持在面板主体上,但允许弯曲的线构件在腰部支撑件的垂直调节期间水平拉伸。 面板体包括成形为在垂直可调节的腰部支撑件被垂直调节时在多个水平带的顶部和底部边缘上滑动的慷慨圆角的上边缘和下边缘,而不会卡住并且不可接受地扭转各个带。