PROPELLER SHAFT MECHANISM FOR ALL TYPES OF PEDAL AND ENGINE DRIVEN VEHICLES

摘要

The invention relates to a propeller shaft mechanism for all types of pedal and engine driven vehicles, which comprises: a) a first shaft (1), connected to the chain wheel or wheels (P), driven by an engine and provided with an axial through-hole (10); b) a second shaft (2), connected to the connecting rods of the pedals and coaxially housed in said axial through-hole (10) of the first shaft (1); and c) a freewheel mechanism (3), attached to the first shaft (1) via a first anchor means (m1) and attached to the second shaft (2) via a second anchor means (m2); such that the first shaft (1) can rotate in the running direction without the second shaft (2) having to rotate.