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    • 2. 发明授权
    • Load compensator for height adjustable table
    • 负载补偿器用于高度可调节表
    • US09591920B2
    • 2017-03-14
    • US14592583
    • 2015-01-08
    • STEELCASE INC.
    • David K. JonesKurt HeidmannTodd Andres
    • A47B97/08A47B9/12A47B9/00A47B9/02A47B9/20
    • A47B9/02A47B9/00A47B9/12A47B9/20A47B13/023A47B2013/024A47B2200/0051A47B2200/0052
    • A table assembly, the assembly comprising a first member having a length dimension parallel to a substantially vertical extension axis, a second member supported by the first member for sliding motion along the extension axis between at least an extended position and a retracted position, the second member forming an internal passageway, a table top mounted to one end of one of the first and second members, a spring that generates a variable spring force that depends at least in part on the degree of spring loading, the spring having first and second ends, aligned substantially parallel to the vertical extension axis, located at least partially within the internal passage formed by the second member and linked to each of the first and second members and a rotatable cam member engaged with the spring, the cam member and spring applying a force between the first and second members tending to drive the second member into the extended position, the cam member rotating around an axis as the second member moves between the extended and retracted positions, the rate of cam member rotation changing in a non-linear fashion as the second member moves toward the extended position.
    • 一种桌子组件,该组件包括具有平行于基本上垂直的延伸轴线的长度尺寸的第一构件,由第一构件支撑的第二构件,用于在至少延伸位置和缩回位置之间沿着延伸轴线滑动运动,第二构件 形成内部通道的构件,安装到第一和第二构件中的一个的一端的台面;弹簧,其产生至少部分地取决于弹簧加载程度的可变弹簧力,弹簧具有第一和第二端 基本上平行于所述垂直延伸轴排列,至少部分地位于由所述第二构件形成并且连接到所述第一和第二构件中的每一个的所述内部通道内,以及与所述弹簧接合的可旋转凸轮构件,所述凸轮构件和弹簧施加 倾向于将第二构件驱动到伸出位置的第一构件和第二构件之间的力,该凸轮构件绕轴线旋转 第二构件在延伸位置和缩回位置之间移动,随着第二构件朝向延伸位置移动,凸轮构件旋转的速度以非线性方式变化。
    • 4. 发明授权
    • Load compensator for height adjustable table
    • US10051955B1
    • 2018-08-21
    • US15075382
    • 2016-03-21
    • STEELCASE INC
    • David K JonesKurt HeidmannTodd Andres
    • A47B9/02A47B9/20A47B9/12A47B9/00
    • A table assembly comprising a leg assembly having upper and lower ends, the leg assembly including a fixed first member having upper and lower ends, a movable second member disposed in sliding engagement with the first member, the engagement including a retracted configuration and an expanded configuration, a cam member including a cam section, the cam member operably coupled to one of the first and second members, the cam member having a rotational range of travel from a first angular orientation corresponding to the expanded configuration of the first and second members to a second angular orientation corresponding to the contracted configuration of the first and second members, a spring supported by the leg assembly and operably coupled to the cam member, wherein the cam member and the spring cooperate to apply a force to the second member tending to drive the second member toward the expanded configuration, a velocity governor supported by at least one of the first and second members for, while the second member is moving, restricting the speed with which the second member moves with respect to the first member to a maximum speed without completely stopping second member.