Screwdriving power tool with an axially operated percussion mechanism

A screwdriving power tool (2), comprising:

• a housing (4);
• a hollow spindle (8) rotatably supported in the housing (4);
• a motor (26) for driving the hollow spindle (8);
• a clutch (3) rotationally connecting, in an engagement position thereof, the hollow spindle (8) with the motor, and rotationally disconnecting the hollow spindle (8) from the motor (26) in a disengagement position thereof, the clutch (30) including clutch spring means (40, 44) for preloading the clutch in a disengagement position thereof;
• a screwing-in spindle (6) connected, for joint rotation therewith, with a chuck (10) for receiving a working tool (12), and connected with the hollow spindle (8) for a joint rotation therewith and for an axial displacement relative thereto, the clutch (30) being brought in to the engagement position thereof by displacement of the screwing-in spindle (6) against a biasing force of the clutch springs (40, 44);
• a percussion mechanism (14) for applying a pulsed axial force to the screwing-in spindle (6);
• and
• means for locking the clutch (30) in the engagement position thereof.