Patent ID: 7267142
Filing Date: 2007-09-11
Classification: F01L,F03G

Abstract:
1. A method for increasing the torque of a pretensioned spring which is arranged around a rotary body having a longitudinal axis, and a first end and a second end positioned, in a pretensioning state, respectively at a first stop and at a second stop which are connected to the rotary body, the method comprising the steps of: executing at least X revolutions about a longitudinal axis without external action of force, such that the first end engages once during each revolution into a cam wheel which has at least X+1 teeth and at least one cam arranged parallel to the teeth, and said cam wheel rotates further by the amount of one tooth per revolution of the rotary body, subjecting the rotary body continuously to the rotational movement in the pretensioning state after at least X revolutions, until simultaneously the cam wheel bears with its cam against a third stop and the first end engages into the cam wheel, and continuing the rotational movement such that the first end remains in engagement with the cam wheel and its positioning at the first stop is canceled.