Patent ID: 7638960
Filing Date: 2009-12-29
Classification: H02K

Abstract:
1. Positioning device having a motor ( 18 ), having a positioning member ( 22 ), which can be driven by said motor ( 18 ) and through which a positioning element ( 10 ) can be positioned, and having a measuring device for determining an actual position of said positioning element ( 10 ) for controlling said motor ( 18 ), characterized in that said measuring device is independent of the positioning element ( 10 ) and joined to the positioning element ( 10 ) by a traction cable ( 32 ), wherein said measuring device comprises said traction cable ( 32 ), a drum ( 36 ) onto which one end of said traction cable ( 32 ) can be wound, and an encoder ( 42 ) coupled to said drum ( 36 ), and wherein the other end of said traction cable ( 32 ) is led out of said positioning device and is joinable with said positioning element ( 10 ).