3K Mechanical Paradox transmissions: The shaping of the meshing zone for better efficiency

In the paper, a new method (Hori and Hayashi) for the design of tooth addendum in a Mechanical Paradox 3K transmission gear was presented. A meshing scheme obtained in agreement with this method and actual meshing schemes after inclusion of generation and engagement limitations were presented. The results of calculations using a different approach proposed by the author to the problem of access/recess contact ratio equalisation were also included.