Patent ID: 6135212
Filing Date: 2000-10-24
Classification: B25B

Abstract:
Hammering screwdriver device (1) with a motor which transmits a rotary movement to a screw spindle (5) through a shaft (4) and drives a cam controller casing (2) enclosed by a hammering mechanism cage (6) to control the hammering motion, whereby a track (3) arranged around its entire periphery is situated on the head end (7) of the cam controller casing (2) facing away from the screw spindle (5) which has an elevation (8) in the axial direction, owing to which the cam controller casing (2) is arranged resulting in a channel (9) for the rotation of a ball in interplay with the opposite-lying hammering mechanism cage (6), and whereby the cam controller casing (2) engages into axially displaceable pins (12) which compress a spring (13) assuring the return to the initial state through a sliding motion executing the hammering action, characterized in that the cam controller casing (2) is constructed enabling a fixation of the ball (10) with travel in the one direction, and consequently blocking the hammering action in connection with rotation, and with travel in the other direction, enabling a revolution of the ball (10) on the track (3) or in the channel (9), and consequently producing the hammering action in connection with simultaneous rotation.