Patent ID: 8136622

Claim:
A superimposition steering unit comprising: a steering angle set by a driver can be superimposed by an additional angle; one or more individually operable structural components, wherein the one or more individually operable structural components controls a superimposition function of the superimposition steering; a superimposition gear, which has at least one secondary gear module ( 16 ) and one primary gear module ( 17 ) as two individually operable structural components; wherein the secondary gear module ( 16 ) has a drive motor ( 5 ), a frontal or belt drive ( 23 ), and a primary gear drive unit ( 24 ); and wherein the primary gear drive unit ( 24 ) has a main drive wheel ( 25 ), a free-run spring ( 26 ), a clamping body spring ( 27 ), a clamping body ( 28 ), a clamping and support ring ( 29 ), a coupling of the primary gear ( 30 ), a secondary gear support ( 31 ), and clamping inclines ( 32 ).