Collapsible walker with a retractable seat

作者: Richard D. Light

DOI:

关键词: Horizontal position representationNormalization propertyAcute angleStructural engineeringEngineering

摘要: The invention is a walker for an invalid. In detail, the includes first U shaped member having center portion and two parallel arm portions extending downward at acute angle terminating in vertically front supports contacting ground. A sleeve movably mounted on each of said arms. detente system included to releasably lock sleeves intermediate position portions. pair generally vertical rear support members have ends ground, providing support, second pivotally connected proximity portion. links are by their thereof sleeves. griping handles, with member. handles seat movable from wherein user can sit horizontal storage. collapsed storage moving retracted releasing sliding them down along This will cause collapse toward until they all touch.

参考文章(10)
Morton I. Thomas, Invalid walker apparatus ,(1977)
Charles E Murcott, Collapsible invalid walkers ,(1958)
Dwight L. Mayo, Fritz A. Deutsch, Safety rolling invalid walker ,(1980)
Ronald S. Adrezin, Marc A. Cordaro, Fikre S. Wang, Avital Fast, Method and apparatus for gait measurement ,(1993)
Douglas A. Quast, John P. Samuelson, Walker for a small child ,(1986)
Leslie D. Norman, Thomas A. Morris, Collapsible walking frame having pivotal seat ,(1984)
Michael Doom, Jim R. Schultz, Reversible walker devices ,(1986)
Morton I Thomas, Donald W Edwards, Foldable swingable walker ,(1967)