WHEELCHAIR WITH AUTOMATIC BRAKE

摘要

PROBLEM TO BE SOLVED: To automatically brake backward force of a wheelchair in climbing a slope to utilize human power for the wheelchair. SOLUTION: Bosses of a plurality of fixed guiding disks fit with bearings and arm rods for load rotatably inserted into bearings inside the fixed guiding disks are attached on right and left outside plates from the inside of the fixed guiding disks. Then right and left rotation retaining plates are rotatably inserted. Keys are fit into key grooves around the end parts of main shafts. Inputting arm rods are fit and fixed on the keys. The tip end parts of right and left main shafts are rotatably inserted into shaft holes of the central bearing box from right and left sides. Inserting holes are bored on input sides of the rotation retaining plates. The inputting arm rods are fixed neighboring the rotation retaining plates onto the main shafts by keys. Inputting pushing rods are fixed on the tip ends of the inputting arm rods and inserted into inserting holes of the rotation retaining plates.