A continuous implemented non-closed, and so a side, means connected to the inner concentric polygons

The present invention belongs to the field of mechanical transmission, relates to the field of mechanical transmission based on the Archimedes spiral line may be continuously implemented symbiotic non-closed, and so a side, means connected to the inner concentric polygon. The present invention is an Archimedean spiral with a particular mechanism combined to create a new mechanism that on the basis of the Archimedean spiral, with the evolution of a new law of motion, can be continuously to achieve non-closed, equilateral length, concentric inscribed polygon within the mechanism, which is an unprecedented new mechanism, given the Archimedes spiral has an application in the field of machinery, when the transmission speed and power for the mechanical transmission can be used as a continuously variable pitch diameter and pitch, etc., and other partially toothed gear module and the continuously variable pitch diameter, pitch, etc. incomplete pinwheel to practical use.