Patent ID: 11926029
Assignee: HILTI AKTIENGESELLSCHAFT
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A driving device for driving a fastening element into a base material, the driving device comprising a power unit; a driving element, which is driven by the power unit from a starting position into a setting position, in order to drive a fastening element into the base material; a clutch device configured to hold the driving element in the starting position when the driving element is engaged in the clutch device; a control element that returns the driving element from the setting position into the starting position and that stops in a stopping position during a recurring sequence of movements; a motor that drives the control element a control device configured to control stopping the control element in the stopping position by at least one control parameter; and a coupling sensor that transmits a signal to the control device upon at least one of the driving element's engaging in the clutch device and closing the clutch device; wherein the control device is configured to count revolutions or commutations of the motor after receipt of the signal transmitted by the coupling sensor and before stopping the motor, to form a difference between an actual stopping position and a desired stopping position of the control element and to adapt the at least one control parameter for a subsequent sequence of movements of the control element if the difference exceeds a predetermined desired value.