公开(公告)号：US5556250A

公开(公告)日：1996-09-17

申请号：US449777

申请日：1995-05-24

申请人： Percy Fretwell ,  Stanton D. Saucier ,  Bernard G. Doucet

发明人： Percy Fretwell ,  Stanton D. Saucier ,  Bernard G. Doucet

IPC分类号： A61G3/06 ,  B60P1/44

CPC分类号： B60P1/445 ,  A61G3/062 ,  A61G3/067 ,  Y10S414/13 ,  Y10S414/134

摘要： A vehicle lift, as for wheelchairs, incorporates a horizontally disposed load platform pivotally affixed to a laterally spaced-apart parallelogram elevating frame which is in turn pivotally affixed to a carriage, allowing a composite travelling assembly (platform, elevating frame and carriage) to be stowed in a mounting enclosure. A hydraulic ram actuates the parallelogram elevating frame mechanisms to position the platform at different terminal positions. At the stowing level, a pair of laterally spaced-apart rack-and-pinion mechanisms actuate the aligned platform, elevating frame and carriage inboard, on laterally opposed guide rails to be stowed in a mounting enclosure. A roll stop mechanism is affixed to the outboard end of the platform and is automatically actuated to move from a ramp position at ground level to a vertical safety stop position when the platform is elevated. A bridge plate mechanism is affixed to the inboard end of the platform to bridge the gap between the platform and the vehicle at vehicle floor level yet function as a vertical safety barrier at all other platform positions. A hinged handrail is fitted to each side of the platform for passenger safety.

摘要翻译： 作为轮椅的车辆升降机包括水平布置的负载平台，其枢转地固定到横向间隔开的平行四边形升降框架，该框架又可枢转地固定到托架，允许复合行进组件（平台，升降框架和托架）为 收纳在安装的外壳中。 液压柱塞致动平行四边形升降框架机构，将平台定位在不同的终端位置。 在收起位置，一对侧向间隔开的齿条和小齿轮机构在横向相对的导轨上致动对准的平台，升降框架和托架，以被收纳在安装壳体中。 在平台的外侧端部固定有一个滚动停止机构，并且当平台升高时，自动地将其从地面上的斜坡位置移动到垂直安全停止位置。 桥板机构固定到平台的内侧端部，以便在车辆地板水平面处桥接平台和车辆之间的间隙，但在所有其他平台位置处起到垂直安全屏障的作用。 铰链扶手安装在平台的每一侧，用于乘客安全。