抄録
This paper proposes a tilting system that prevents pressure ulcers of a wheelchair user. This system comprises a sensor unit for detecting the buttocks pressure and a tilt mechanism for distributing the pressure. The sensor unit has eight thin and flexible tactile sensors, FlexiForce. The sensor unit sounds a buzzer to call attention to the user judging from the pressure value and the period, and that urges him/her to tilt the wheelchair. The tilting system ensures the safety against falling down because the user reclines without the wheelchair tilting. The user can reduce the buttocks pressure by himself. This system can be installed on a conventional wheelchair. Experimental results confirm the effectiveness of this system.
