An automatic speed reducing wheel (1) includes a wheel unit (10) and a speed reducing unit (20). The wheel unit (10) includes a wheel seat (11), a wheel axle (12) passing through the wheel seat (11), and a roller (13) rotating about the wheel axle (12). A ...

The invention concerns a handle brake device (10) installed on a handlebar (11) of a wheelchair or a wheeled walker to control a transmission cable connected at one end to the hand brake device (10) and at the other end to a brake mechanism mounted on a wh...