spring-seat chair

Spring-seat chair-iron
Power-Assisted Chair with Virtual Spring Seat
Rising from a chair by a spring-loaded flap seat: a biomechanical analysis.
CHAIR SEAT HAVING A RESILIENT SEATREST/BACKREST, METHOD OF MANUFACTURING SAME AND CARBON FIBRE MATERIAL USED AS A SPRING
Evaluation of Seat Comfort of Office Armchairs: an Impact of Articulated Seat Support and Gas Spring
CHAIR WITH SPRING-MOUNTED SEAT ELEMENT
WHEEL-CHAIR FOR TRANSPORTING OR ASSISTING THE DISPLACEMENT OF AT LEAST ONE USER, PARTICULARLY FOR A HANDICAPED PERSON
Electro-mechanical seat swivel system
Analysis of the influence of an articulated seat position for wheelchair on the pressure distribution in the gluteal region
Comfortable shape design of rigid supporting surface for short-time relaxation chair.