Abstract
In many welfare vehicles, loading of wheelchairs and stretchers are assisted by winch embedded in the vehicle. However, most of the winches are not capable of braking in unloading operations. In many situations, the lack of braking implies potential dangers. In this research, a new kind of winch is proposed. It is characterized by the braking system designed for unloading operations. The system makes it possible to unload a wheelchair with a safe velocity and stop an unloading immediately as the operator likes. In addition, with the winch, the fasten belt can be withdrawn following the operator's intention. Moreover, the portable design of the winch it applicable in many fields.
