Patent ID: 7004129

Claim:
A camshaft adjusting device for a motor vehicle, comprising: a stator and a rotor adjustable relative to the stator in a circumferential direction by a pressure medium; a spring chamber; a restoring spring arranged in the spring chamber, wherein the restoring spring is configured to rotate the stator and the rotor relative to one another into an initial position when an engine of the motor vehicle is tumed off; wherein the restoring spring has a rotor end positive-lockingly connected to the rotor and a stator end positive-lockingly connected to the stator; wherein a first one of the rotor end and the stator end is provided with a convexly curved embossment that cooperates with a convexly curved outer side of a positive-locking counter element provided on the rotor or stator, respectively; wherein the positive-locking counter element is provided on the stator.