作者: Howard L. Iversen
DOI:
关键词: Left and right 、 Torsion spring 、 Structural engineering 、 Frame (networking) 、 Engineering
摘要: An apparatus that is placed on a soft seat, such as an easy chair or sofa to help its user in being seated and arising includes rigid U-shaped lower frame spanned by sheet of pliable material contact with the further upper formed tubing panel. The resiliently pivotably mounted means left right torson springs, which apply upward force panel, partially offsetting user's weight when provided hand holds permit steady himself he sits down arises. stable use easily portable owing lightweight construction.