Door Closer With Free-Swing Function

A door closer having a free-swing function, comprising:

• a door closer housing;
• an output shaft configured to be connected to a door;
• a piston assembly connected to the output shaft and guided in the door closer housing;
• a closer spring;
• a piston rod that connects the piston assembly to the closer spring arranged parallel to a longitudinal door closer axis;
• a free-swing assembly embodied as a sliding-coupling that exclusively transmits compressive forces between the closer spring and the piston assembly that enables a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked;
• a hydraulic lock compartment that locks the closer spring;
• and
• a pocket arranged in the piston assembly, the piston rod movably guided on the pocket.