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    Chair with adjustable foot support
    6.
    发明授权
    Chair with adjustable foot support 有权
    椅子可调脚支撑

    公开(公告)号：US07530639B2

    公开(公告)日：2009-05-12

    申请号：US11455013

    申请日：2006-06-16

    Applicant: John C. Groelsma ,  John F. Aldrich ,  Christopher C. Hill ,  Craig A. Ulman

    Inventor： John C. Groelsma ,  John F. Aldrich ,  Christopher C. Hill ,  Craig A. Ulman

    IPC: A47C7/50

    CPC classification number: A47C7/506 ,  A47C1/03255 ,  A47C7/004

    Abstract: A chair includes a base and a seating structure rotatably coupled to the base and vertically moveable between at least a first position and a second position. A foot support is disposed a vertical distance from the seating structure. The foot support is rotatably coupled to the seating structure and non-rotatably coupled to the base. A control mechanism is operably coupled to the foot support for adjusting the vertical distance between the foot support and the seat. The control mechanism includes a control handle operably coupled to the seating structure. The control handle rotates with the seating structure when the seating structure is rotated and moves vertically with the seating structure when the seating structure is vertically moved between the first position and the second position.

    Abstract translation: 椅子包括底座和可旋转地联接到基座并且可在至少第一位置和第二位置之间垂直移动的座椅结构。 脚座与座椅结构垂直距离设置。 脚支撑件可旋转地联接到座椅结构并且不可旋转地联接到基座。 控制机构可操作地联接到脚部支撑件，用于调节脚部支撑件和座椅之间的垂直距离。 控制机构包括可操作地联接到座椅结构的控制手柄。 当座椅结构在第一位置和第二位置之间垂直移动时，当座椅结构旋转并且随着座椅结构垂直移动，控制手柄随着座椅结构旋转。

    Tilt chair and methods for the use thereof
    7.
    发明授权
    Tilt chair and methods for the use thereof 有权
    倾斜椅及其使用方法

    公开(公告)号：US07425037B2

    公开(公告)日：2008-09-16

    申请号：US10738641

    申请日：2003-12-17

    Applicant: Johann Burkhard Schmitz ,  Claudia Plikat ,  Nicolai Neubert ,  Carola E. M. Zwick ,  Roland R. O. Zwick ,  John F. Aldrich ,  Christopher C. Hill ,  James D. Slagh ,  Douglas M. VanDeRiet

    Inventor： Johann Burkhard Schmitz ,  Claudia Plikat ,  Nicolai Neubert ,  Carola E. M. Zwick ,  Roland R. O. Zwick ,  John F. Aldrich ,  Christopher C. Hill ,  James D. Slagh ,  Douglas M. VanDeRiet

    IPC: A47C1/024

    CPC classification number: A47C7/46 ,  A47C1/03 ,  A47C1/03255 ,  A47C1/03266 ,  A47C1/03277 ,  A47C7/282

    Abstract: A tiltable chair including a base, a fulcrum member having a curved support surface, a back support pivotally connected to the base at a pivot axis and pivotable between at least an upright position and a rearward tilt position, and at least one leaf spring having first and second ends, with the first end being restrained by the base. The at least one leaf spring engages the curved support surface of the fulcrum member at a first contact point when the back support is in the upright position and at a second contact point when the back support is in the rearward tilt position, wherein the second contact point is positioned rearwardly on the at least one leaf spring relative to the first contact point. A link member is pivotally connected to the back support at a first pivot location and is pivotally connected to the at least one leaf spring at a second pivot location. The link member defines a vector between the first and second pivot locations and the first pivot location and the pivot axis define a plane. The vector and the plane define a first angle when the back support is in the upright position and a second angle when the back support is in the rearward tilt position, wherein the second angle is closer to ninety degrees than the first angle. A method of using a chair is also provided.

    Abstract translation: 一种可倾斜的椅子，包括一个底座，一个具有弯曲的支撑表面的支点构件，一个在枢转轴线处可枢转地连接到该基座并在至少一个直立位置和一个向后倾斜位置之间可枢转的后支撑件，以及至少一个板簧， 和第二端，第一端被基座约束。 当背部支撑件处于直立位置时，至少一个叶片弹簧在第一接触点处接合支点构件的弯曲支撑表面，并且当后支撑件处于向后倾斜位置时，该第二接触点处于第二接触点处，其中第二接触点 点相对于第一接触点向后定位在至少一个板簧上。 连杆构件在第一枢转位置枢转地连接到后支撑件，并且在第二枢转位置枢转地连接到所述至少一个板簧。 连杆构件限定第一枢转位置和第二枢转位置之间的向量，并且第一枢转位置和枢转轴线限定平面。 当背部支撑件处于直立位置时，矢量和平面限定第一角度，并且当后部支撑件处于向后倾斜位置时第二角度，其中第二角度比第一角度更接近九十度。 还提供了使用椅子的方法。

    Back support structure
    8.
    发明授权
    Back support structure 有权
    后支撑结构

    公开(公告)号：US07249802B2

    公开(公告)日：2007-07-31

    申请号：US10365682

    申请日：2003-02-12

    Applicant: Johann Burkhard Schmitz ,  Claudia Plikat ,  Nicolai Neubert ,  Carola E. M. Zwick ,  Roland R. O. Zwick ,  Chad D. Aerts ,  John F. Aldrich ,  Christopher C. Hill ,  Shane M. Ramsdell ,  James D. Slagh ,  Douglas M. VanDeRiet

    Inventor： Johann Burkhard Schmitz ,  Claudia Plikat ,  Nicolai Neubert ,  Carola E. M. Zwick ,  Roland R. O. Zwick ,  Chad D. Aerts ,  John F. Aldrich ,  Christopher C. Hill ,  Shane M. Ramsdell ,  James D. Slagh ,  Douglas M. VanDeRiet

    IPC: A47C7/40

    CPC classification number: A47C7/46 ,  A47C1/03 ,  A47C1/03255 ,  A47C1/03266 ,  A47C1/03277 ,  A47C7/282

    Abstract: A tiltable chair including a housing, a back support pivotally attached to the housing about a first horizontal axis and a seat support pivotally attached to the back support about a second horizontal axis and moveably supported by a curved track formed on the housing. A leaf spring includes a first end supported by the housing and a second end biasing the back support and seat support in an upward direction. Preferably, a fulcrum member, which includes a support surface having a curvilinear contour, is moveably supported in the housing and engages a bottom surface of the spring intermediate the first and second ends of the spring. Preferably, a linkage mechanism including a first and second link is adapted to adjust the position of the fulcrum. In another preferred embodiment, a gear housing is removably disposed in said housing and coupled to the fulcrum. In one preferred embodiment, rearward and forward tilt limiters are provided. In various preferred embodiments, the chair further includes a backrest having a plurality of openings, and armrests that are vertically, laterally and pivotally adjustable. In a preferred embodiment, a kit for assembling a seating structure includes a tilt housing having a plurality of connector arrangements comprising at least a first and second connector arrangement, a first seating arrangement having a first mounting arrangement configured to be connected to the first connector arrangement, and a second seating arrangement having a second mounting arrangement configured to be connected to the second connector arrangement.

    Abstract translation: 一种可倾斜的椅子，包括壳体，围绕第一水平轴线枢转地附接到壳体的后支撑件和靠近第二水平轴线枢转地附接到后支撑件的座椅支撑件，并且由形成在壳体上的弯曲轨道可移动地支撑。 板簧包括由壳体支撑的第一端和沿向上方向偏置后支撑件和座椅支撑件的第二端。 优选地，包括具有曲线轮廓的支撑表面的支点构件可移动地支撑在壳体中并且接合在弹簧的第一和第二端之间的弹簧的底表面。 优选地，包括第一和第二连杆的连杆机构适于调节支点的位置。 在另一优选实施例中，齿轮壳体可移除地设置在所述壳体中并联接到支点。 在一个优选实施例中，提供了向后和向前倾斜限制器。 在各种优选实施例中，椅子还包括具有多个开口的靠背和可垂直，横向和可枢转地调节的扶手。 在优选实施例中，用于组装座椅结构的套件包括具有包括至少第一和第二连接器装置的多个连接器装置的倾斜壳体，第一座椅装置，其具有构造成连接到第一连接器装置 以及具有被配置为连接到第二连接器装置的第二安装装置的第二座位装置。

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