Non-Linear Stiffness Roller Assembly
    7.
    发明申请
    Non-Linear Stiffness Roller Assembly 有权
    非线性刚度辊组件

    公开(公告)号:US20140069746A1

    公开(公告)日:2014-03-13

    申请号:US14112423

    申请日:2011-05-27

    IPC分类号: B66B7/04

    CPC分类号: B66B7/046 B66B7/022 F16C13/00

    摘要: A roller apparatus is provided. The roller apparatus may include a bearing wheel configured to rotatably couple the roller apparatus to a roller shaft, and a resilient member radially disposed about the bearing wheel and configured to contact a guiderail at different magnitudes of loads. The resilient member may include a first section of a first diameter and a second section of a second diameter. The first section may be caused to deflect in response to loads within a first load range, while the second section may be caused to deflect in response to loads within a second load range. The resilient member may exhibit a stepwise increase in stiffness with a gradual increase in load.

    摘要翻译: 提供滚筒装置。 辊装置可以包括构造成将辊装置可旋转地联接到辊轴的轴承轮和围绕轴承轮径向设置的弹性构件,并且构造成在不同大小的负载下接触导轨。 弹性构件可以包括第一直径的第一部分和第二直径的第二部分。 可以使第一部分响应于第一负载范围内的负载而偏转,同时可以使第二部分响应于第二负载范围内的负载而偏转。 弹性构件可以随着负载的逐渐增加而呈现逐渐增加的刚度。

    Sound absorbing light fixture
    8.
    发明授权
    Sound absorbing light fixture 失效
    吸音灯具

    公开(公告)号:US06367581B1

    公开(公告)日:2002-04-09

    申请号:US09578377

    申请日:2000-05-25

    IPC分类号: E04B182

    摘要: A sound absorbing light fixture (42) installed in a surface system, such as an elevator ceiling system (40), of an enclosed interior, such as the interior (32) of an elevator cab (32) is presented. The light fixture (42) comprises a frame (46) disposed in fixed relationship to the surface system, the frame (46) having an interior rear surface and interior side surfaces extending outwardly from the rear surface to define a cavity (50). A light source (48) is supported by the frame (46) within the cavity (50). Additionally, a light diffuser (44) is disposed in fixed relationship to a front portion of the frame (46) between the light source (48) and the enclosed interior. The installed light fixture (42) enhances a sound absorption coefficient, e.g., above 0.6, of the surface system for a predetermined frequency range of sound energy, e.g., 300-600 Hz.

    摘要翻译: 提供了安装在诸如电梯吊顶系统(40)的表面系统中的诸如电梯轿厢(32)的内部(32)的封闭内部的吸音灯具(42)。 灯具(42)包括与表面系统固定关系的框架(46),框架(46)具有内部后表面和从后表面向外延伸的内侧表面以限定空腔(50)。 光源(48)由腔(50)内的框架(46)支撑。 另外,光源(44)与光源(48)和封闭内部之间的框架(46)的前部固定地固定。 安装的灯具(42)在声能的预定频率范围(例如300-600Hz)下增强表面系统的吸声系数,例如高于0.6。