Patent 6983988 was granted and assigned to Fortune Institute of Technology on January, 2006 by the United States Patent and Trademark Office.
A backrest-adjusting device for a bicycle is specially designed for persons who are handicapped or try to rectify the body, including a backrest adjusting set and a breast-support adjusting set for securing a rider on a bicycle stably by adjusting the position of the backrest and the waist pad and the torso supports according to the rider's body size. Then the rider can be protected from falling down to get wounded or injured, safely using the bicycle.