the coupling member being a flexible strip

Full Title

Chairs adapted for special purposes (chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs, A61G5/00; operating chairs or dental chairs A61G15/00) > Reclining or easy chairs > having coupled adjustable supporting parts > the parts being movably-coupled seat and back-rest (A47C1/035 takes precedence) > the coupling member being a flexible strip