发明名称 Transport device for invalids
摘要 A tubular metal chair frame covered with canvas with a two-wheeled pivoted upwardly foldable front end and a pivoted rear support stand with two swivelled additional wheels, the support stand being lockable in a normal rearward position with the swivelled wheels engaging the floor and spaced rearwardly from the two front wheels. The support stand is foldable upwardly and can be locked in an elevated position, substantially coplanar with the upper portion of the frame. The lower portion of the frame is provided with a pair of parallel tread belts mounted on supports having rollers underlying the belts, the belts being located behind the front wheels and being usable to engage the edges of steps when the chair and its occupant are moved down stairs. Foldable handles are provided on the front end of the frame.
申请公布号 US4136888(A) 申请公布日期 1979.01.30
申请号 US19770840378 申请日期 1977.10.07
申请人 THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPARTMENT OF HEALTH, EDUCATION AND WELFARE 发明人 BOWIE, JR., WILLIAM R.;SAMPSON, GEORGE B.
分类号 A61G5/06;(IPC1-7):B62B5/02 主分类号 A61G5/06
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