Backrest for wheelchair for use by people with reduced mobility, has cables that are connected to adjacent support structures that are pivotable about common articulated points in support column

摘要

A support column (1) has spaced support structures (2-5) having sides facing towards and away from human body. The support column is set in a basic position having rectilinear longitudinal axis (L), and in a supporting position in which human body is adapted to a bent longitudinal axis. The support structures are pivotable about common articulated points (K23,K34,K45) in the support column. The cables are connected to adjacent support structures having varied effective length.