Patent ID: 7395872

Claim:
A switching device with a rotatably mounted operating element ( 10 ) and an eccentric element ( 12 ) for translating a rotational displacement ( 14 ) of the operating element ( 10 ) into a translatory displacement ( 16 ) of a switching element ( 18 ), wherein the switching element is in the form of a selector shaft of a hand-held power tool, wherein a shape of the eccentric element ( 12 ) differs significantly from that of a rod as well as a circular shape, wherein the eccentric element ( 12 ) has a guide surface ( 24 , 26 ) provided to convert the rotational displacement ( 14 ) using a contact point ( 28 , 30 ) that travels on the guide surface ( 24 , 26 ) during the rotational displacement ( 14 ), wherein the guide surface ( 24 ) is substantially parabolic in shape, and wherein a vertex of the parabolic-shaped guide surface ( 24 ) points outwardly in a radial direction.