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    Chair back construction
    2.
    发明授权
    Chair back construction 失效

    公开(公告)号：US6062649A

    公开(公告)日：2000-05-16

    申请号：US34188

    申请日：1998-03-03

    申请人： Duane F. Nagel ,  Daniel P. Beemer ,  Dale M. Groendal ,  Jeffrey A. Hall ,  Edward L. Tyler

    发明人： Duane F. Nagel ,  Daniel P. Beemer ,  Dale M. Groendal ,  Jeffrey A. Hall ,  Edward L. Tyler

    IPC分类号： A47C1/023 ,  A47C7/40 ,  A47C7/46 ,  A47C7/02

    CPC分类号： A47C7/462 ,  A47C1/023 ,  A47C7/40

    摘要： A chair includes a base, a seat operably supported on the base for depth adjustment, and a back operably supported by an upright that extends from the base for recline. The back includes a structural back support, a rear cover covering a rear side of the back support, and a front/lower concave cover covering the upright between a rear of the seat and below the back support to provide a one-piece back and seat appearance. The concave cover defines a concavity shaped to receive a rear of the seat to facilitate depth adjustment, but so that the one-piece back and seat appearance is maintained. The concave cover further includes upwardly extending tabs that engage a lower marginal edge of the back support to facilitate assembly. A flexible sheet covers a front side of the back, and includes a lower portion that wraps around the lower marginal edge and onto a rear surface of the back support, and the concave cover includes an upwardly facing flange that overlaps the lower marginal edge of the back support to trap the lower portion against the lower marginal edge. A vertically adjustable lumbar support is operably mounted on the back support for vertical movement, and handles are provided that move along vertical side edges of the back along a path that is non-parallel the vertical path of the lumbar support.

    Chair back construction
    3.
    发明授权
    Chair back construction 有权
    椅背施工

    公开(公告)号：US6099076A

    公开(公告)日：2000-08-08

    申请号：US443522

    申请日：1999-11-19

    申请人： Duane F. Nagel ,  Daniel P. Beemer ,  Dale M. Groendal ,  Jeffrey A. Hall ,  Edward L. Tyler

    发明人： Duane F. Nagel ,  Daniel P. Beemer ,  Dale M. Groendal ,  Jeffrey A. Hall ,  Edward L. Tyler

    IPC分类号： A47C1/023 ,  A47C7/40 ,  A47C7/46

    CPC分类号： A47C7/462 ,  A47C1/023 ,  A47C7/40

    摘要： A chair includes a base, a seat operably supported on the base for depth adjustment, and a back operably supported by an upright that extends from the base for recline. The back includes a structural back support, a rear cover covering a rear side of the back support, and a front/lower concave cover covering the upright between a rear of the seat and below the back support to provide a one-piece back and seat appearance. The concave cover defines a concavity shaped to receive a rear of the seat to facilitate depth adjustment, but so that the one-piece back and seat appearance is maintained. The concave cover further includes upwardly extending tabs that engage a lower marginal edge of the back support to facilitate assembly. A flexible sheet covers a front side of the back, and includes a lower portion that wraps around the lower marginal edge and onto a rear surface of the back support, and the concave cover includes an upwardly facing flange that overlaps the lower marginal edge of the back support to trap the lower portion against the lower marginal edge. A vertically adjustable lumbar support is operably mounted on the back support for vertical movement, and handles are provided that move along vertical side edges of the back along a path that is non-parallel the vertical path of the lumbar support.

    摘要翻译： 椅子包括底座，可操作地支撑在基座上用于深度调节的座椅，以及由从底座延伸以倾斜的直立部可操作地支撑的后部。 背部包括结构背部支撑件，覆盖背部支撑件后侧的后盖以及在座椅的后部和后部支撑件之间覆盖直立件的前/下凹形盖，以提供一体式背部和座椅 出现。 凹形的盖子形成一个凹形形状以容纳座椅的后部以便于深度调节，但是使得保持一体式的背部和座椅的外观。 凹形盖还包括向上延伸的突片，其接合后支撑件的下边缘以便于组装。 柔性片材覆盖背部的前侧，并且包括围绕下边缘并且覆盖在后支撑件的后表面上的下部，并且凹形盖包括向上的凸缘，其与第二边缘的下边缘重叠 背部支撑以将下部部分压向下边缘。 可垂直调节的腰部支撑件可操作地安装在后支撑件上用于垂直运动，并且提供手柄，其沿着不平行于腰部支撑件的垂直路径的路径沿着背部的垂直侧边缘移动。

    Chair with adjustable seat
    4.
    发明授权
    Chair with adjustable seat 失效
    椅子可调节座椅

    公开(公告)号：US5755488A

    公开(公告)日：1998-05-26

    申请号：US813806

    申请日：1997-03-06

    申请人： Gregory S. Beda ,  Daniel P. Beemer ,  Diane L. Ellis ,  Michelle R. Johnson ,  Charles P. Roossien ,  James P. Steffens

    发明人： Gregory S. Beda ,  Daniel P. Beemer ,  Diane L. Ellis ,  Michelle R. Johnson ,  Charles P. Roossien ,  James P. Steffens

    IPC分类号： A47C1/023 ,  A47C1/02

    CPC分类号： A47C1/023 ,  Y10S297/02

    摘要： A chair including a seat support, a seat movably supported on the seat support for movement between a raised position permitting sliding depth adjustment of the seat and a lowered position preventing adjustment, and a detent device for securely holding the seat in the raised position while the seat is being slidable adjusted. A rack is formed integrally on or attached to the bottom of the seat shell. The detent device includes a seat support bracket attached to a top of a chair control, and a pair of moldings attached to opposite sides of the bracket. The moldings each include upwardly facing teeth for selectively engaging the racks to hold the seat in a selected, depth adjusted position. A resilient finger on each molding is adapted to engage a ridge on the seat shell for selectively holding the seat in either a raised position or in a lowered position. The seat shell engages mating structure on the seat support bracket to permit guided sliding of the seat when in the raised position for depth adjustment, and to prevent cocking and twisting of the seat shell during the depth adjustment.

    摘要翻译： 一种椅子，包括座椅支撑件，可移动地支撑在座椅支撑件上的座椅，用于在允许座椅的滑动深度调节和防止调节的下降位置的升高位置之间移动;以及止动装置，用于将座椅牢固地保持在升高位置，同时 座椅正在滑动调整。 齿条一体地形成在座椅壳体的底部上或附着于座椅壳体的底部。 止动装置包括附接到椅子控制器的顶部的座椅支撑支架和附接到支架相对侧的一对模制件。 模制件各自包括面向上的齿，用于选择性地接合机架以将座椅保持在选定的深度调整位置。 每个模制件上的弹性手指适于接合座壳上的凸脊，用于选择性地将座椅保持在升高位置或降低位置。 座椅壳体与座椅支撑托架上的配合结构接合，以允许当处于升高位置时座椅的引导滑动用于深度调节，并且防止座椅壳体在深度调节期间的起伏和扭转。