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    • 3. 发明申请
    • RAMP COVER MECHANISM FOR A WHELLCHAIR RAMP
    • RAMP覆盖机制用于WHELLCHAIR RAMP
    • WO2005042302A2
    • 2005-05-12
    • PCT/US2004034670
    • 2004-10-21
    • BRAUN CORPBETTCHER ROBERT E IIIKISER AARONSMITH ADAM
    • BETTCHER ROBERT E IIIKISER AARONSMITH ADAM
    • A61G3/06B60P20060101B60P1/43B60P
    • B60P1/433A61G3/061A61G3/067B60P1/431
    • A ramp cover mechanism for a wheelchair ramp system is provided. The wheelchair ramp system may include a flip-over ramp, which may have one or more ramp sections, that is hingedly connected to a mounting enclosure located within the vehicle threshold. A link is attached to the ramp and operates to deploy and stow the ramp in response to a drive system such as a hydraulic linear or rotary actuator. The link rests below the vehicle floor when the ramp is stowed generally flat on top of the vehicle threshold, and when the ramp is deployed, a cover plate adjacent the link is moved to conceal a gap left by the link when extended to deploy the ramp. In one embodiment, the cover plate is normally biased toward a horizontal orientation and the ramp cover mechanism includes a rotating cam that cooperates with an articulated lever assembly to raise and lower the cover plate. The cam rotates relative to the orientation of the ramp and the articulated lever assembly and may include a first link with a cam follower and a second link coupled to the first link and generally perpendicular thereto for moving the cover plate. In another embodiment, the ramp cover is normally biased toward a vertical orientation and the ramp cover mechanism includes a flexible link that is tensioned as the ramp is deployed to overcome the normal bias of the ramp cover thereby moving the cover plate to a horizontal orientation.
    • 提供了一种用于轮椅坡道系统的坡道盖机构。 轮椅斜坡系统可以包括翻转斜坡,其可以具有一个或多个斜坡部分,其被铰接地连接到位于车辆阈值内的安装壳体。 链路连接到斜坡并且操作以响应于诸如液压线性或旋转致动器的驱动系统部署和收起斜坡。 当斜坡在车辆门槛顶部大体平坦地存放斜坡时,该连杆位于车辆底部的下方,并且当斜坡部署时,邻近连杆的盖板被移动以隐藏链路留下的间隙,当延伸部署斜坡 。 在一个实施例中,盖板通常朝向水平方向偏置,并且坡道盖机构包括与铰接杆组件配合以提升和降下盖板的旋转凸轮。 凸轮相对于斜面和铰接杆组件的定向旋转,并且可以包括具有凸轮从动件的第一连杆和联接到第一连杆并且大致垂直于其的用于移动盖板的第二连杆。 在另一个实施例中,坡道盖通常被朝向垂直取向偏置,并且坡道盖机构包括柔性连杆,该柔性连杆在斜面展开时被张紧以克服斜坡盖的正常偏压,从而将盖板移动到水平方向。