DESIGN AND FABRICATION OF SEAT BELT ACTIVATED HAND BREAK

Seat belt is implemented in car to ensure drivers safety. The increase in number of loss of life in accidents is due to driver’s negligence to wear seat belt though it is strictly enforced by law. The aim of our paper is to make seat belt wearing compulsory for vehicle propulsion. We can achieve it by using pneumatic setup along with handbrake. The modification to be done ensures that the driver wears seat belt during driving. Here the seat belt of the car activates the hand brake (parking brake) through a pneumatic cylinder. When the seat belt activates the push button type DC valve an outward stroke is been obtained in the pneumatic cylinder through an air compressor which is used to release the hand brake. Similarly, during the retracing stroke of the piston the hand brake is been engaged