The invention is based on a wiper blade adaptor device, in particular for a wiper blade, with a wiper blade adaptor and a coupling element for coupling the wiper blade adaptor to a wiper blade. Engine operating parameters are fed to an engine control unit controlling a supercharger that boosts engine torque. A bearing with one or more tapered ends engages with the hinge members to allow easy opening and closing of a door attached to the hinge device.