Patent ID: 7634954

Claim:
A device for creating an especially large transmission ratio for actuating drives or actuators, said device comprising: a first shaft ( 32 ), which is supported rotatably about a first rotation axis; exactly one eccentric ( 10 ), which is supported by the first shaft ( 32 ); a transmission part ( 12 ), which is provided with a gear rim ( 20 ) comprising a first gear tooth system ( 38 ), a gear wheel ( 22 ), which is supported rotatably about a second rotation axis ( 44 ) and which is provided with a second gear tooth system ( 42 ); wherein the eccentric ( 10 ) is in driving connection with this transmission part ( 12 ) and wherein the transmission part ( 12 ) is articulated on the eccentric ( 10 ); wherein the first gear tooth system ( 38 ) of the gear rim ( 20 ) engages in the second gear tooth system ( 42 ) of the gear wheel ( 22 ), and wherein either the first gear tooth system comprises a first external gear tooth system and the second gear tooth system comprises a first internal gear tooth system, or wherein the first gear tooth system comprises a second internal gear tooth system and the second gear tooth system comprises a second external gear tooth system; and, wherein additionally the second rotation axis ( 44 ) is at a distance from the first rotation axis ( 34 ).