Firma Zahnraderfabrik Renk Aktiengesellschaft

Fa. Zahnraederfabrik Renk Ag

Erich Pollak-Banda

Louis Kummel

Rudolf Morhart

Erich John

A drive system securable to a base for connecting a pair of generally parallel drive shafts to a single output shaft has a rigid nondeformable housing supported on the base by primary supports lying in a plane perpendicular to the rotation axes of pinion and drive gears rotatably carried in this housing. Each of the pinion gears is connected through a flexible coupling to one of the drive shafts and the drive gear is connected to the output shaft. The supports are deformable so that stresses which normally misalign the pinion and drive gears are compensated for outside of the housing by these supports and the drive gears remain in perfect alignment. The output shaft may extend completely through the housing and be journaled in front of the housing in a fixed bearing, and the primary supports lying in the symmetry plane of the housing may be gudgeons received in journals and permitting tipping of the housing.

Drive system for connecting two drive shafts to a single output shaft,

A driving and a driven spur gear, lying in a common plane, are operatively coupled with each other through the intermediary of an idler gear in mesh therewith, the idler gear being radially shiftable against a resilient force in the common plane of rotation. The tangent to any tooth flank of both the driving and the driven gear at its point of contact with a tooth of the idler gear includes a pressure angle .alpha. with the common diameter of the meshing gears; the angle .delta. between the two common diameters should be so chosen that the two tangents are substantially perpendicular to each other, with .delta. - 2.alpha. = 90.degree. for rotation in one direction and .delta. +2.alpha. =90.degree. for rotation in the opposite direction.

Growing community of inventors

Augsburg, Germany

Erich Pollak-Banda