Straight sprocket for a worm gear and mold for making a straight sprocket of this kind

摘要

Invention Patent: "STRAIGHT TOOTH WHEEL FOR A WORM SCREW GEAR AND A TEMPLATE FOR THE MANUFACTURE OF A STRAIGHT TOOTH WHEEL OF THIS GENDER". A straight sprocket (11) for a worm gear has at least two wheel disks (12, 13, 14) with a cylindrical or truncated cone shaped front surface. On a boundary surface (15), the wheel disks are contiguous to each other, in which the teeth of the two contiguous wheel disks continuously mesh with each other. At least one of the front surfaces converges towards the boundary surface, so that the teeth of all wheel disks can engage with the same worm. In addition, a mold is described for the manufacture of the straight toothed wheel according to the invention.