Abstract: In a printing device for printers or typewriters a hammer (11) is axially movable between a print position and a rest position. At one end the hammer has an impact surface (12) which acts upon a selected one of a number of type characters disposed along the periphery of a type disc. Preferably at its front end the hammer (11) is connected to a long guide pin (26) which extends mainly perpendicular to the length direction of the hammer and cooperates with a guide slot (27) that extends in the length direction of the hammer. The guide slot is situated at a distance from the hammer which is considerably greater than the diameter of the hammer in its connection point with the guide pin (26). Preferably, the distance is at least four times the diameter.

Abstract: A print hammer for printers and typewriters comprises a hammer rod (11) which is axially movable in a housing (17, 18). The hammer rod is biassed towards a rest position by a spring and can be moved to a print position by a drive means, for example a solenoid coil (19). The hammer rod delimits a room (31) in the housing the size of which increases during the movement of the hammer rod towards the print position. The room (31) is connected to the surrounding atmosphere via a narrow channel (33) and also via a valve means (25, 28) which is open during the movement to the print position but closed during the return movement to the rest position. The valve means (25, 28) also forms a stop member for the hammer rod (11) in the rest position.