Dynamic orthopaedic seat shell for wheelchair user has chest restraints pivoted relative to backrest via pivot levers with tension bands limiting their movement

摘要

The dynamic orthopaedic seat shell is attached to a wheelchair via a base plate (1), with its backrest (5) divided transverse to its longitudinal axis in the lumbar region, a flexible coupling provided between the backrest parts, the lower part of the backrest formed the back surface of the seat surface. The chest restraints are pivoted relative to the backrest via pivot levers (9.1,9.2) supported by a common pivot mounting (10) in the lumbar region of the pivoted part of the backrest, with their movement limited via tension bands (15.1,15.2).