公开(公告)号：US06179546B2

公开(公告)日：2001-01-30

申请号：US08921732

申请日：1997-08-27

申请人： Richard J. Citrowske

发明人： Richard J. Citrowske

IPC分类号： B60P144

CPC分类号： A61G3/06 ,  A61G3/062 ,  A61G3/067 ,  Y10S414/13 ,  Y10S414/134

摘要： The present invention provides a robust, highly stable and vertically compact when folded-up wheelchair lift suitable for placement on a variety of vehicles such as vans and mini-vans. The lift has an elongate horizontal support member that is pivotally attached to a post fixed to the undercarriage of a vehicle. The horizontal support member supports the lifting mechanism and the wheelchair platform and is powered to swing the platform and lifting mechanism between a use position and a storage position. The lifting mechanism uses a pair of connecting links spaced lengthwise on the support member and connecting to the wheelchair platform in a four bar linkage arrangement generally in the form of a parallelogram. Both connecting links are rotated by bell cranks both of which are powered by the same hydraulic cylinder.

摘要翻译： 当折叠的轮椅升降机适合放置在诸如货车和小型货车的各种车辆上时，本发明提供了一种坚固的，高度稳定的和垂直紧凑的。 升降机具有细长的水平支撑构件，其被枢转地附接到固定到车辆的底盘上的柱。 水平支撑构件支撑提升机构和轮椅平台，并且通过动力使平台和提升机构在使用位置和存放位置之间摆动。 提升机构使用一对在支撑构件上纵向间隔开的连接链节，并且以一般为平行四边形的四杆联动装置连接到轮椅平台。 两个连接连杆都由两个由同一液压缸供电的钟形曲柄旋转。