作者: Richard D. Light
DOI:
关键词: Horizontal position representation 、 Normalization property 、 Acute angle 、 Structural engineering 、 Engineering
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.