Abstract: A door closer comprises a cylinder and a piston rod mounted in the cylinder and having an exposed section outside the cylinder. A retainer plate, an elastic element, and an end cap are mounted around the exposed section of the piston rod. The retainer plate has a hole through which the exposed section of the piston rod extends. The retainer plate further has a push member extending beyond the end cap through a slot in the end cap. The elastic element is attached between the sleeve and the retainer plate. The push member is pushable toward the sleeve to cause an inner periphery defining the hole of the retainer plate engage with the piston rod such that a side of the retainer plate presses against the pressing rod to stop movement of the piston rod during closing of a door to which the door closer is attached.

Abstract: A door closer comprises a cylinder and a piston rod mounted in the cylinder and has an exposed section outside the cylinder. A retainer plate, an elastic element, a switch rod, and an end cap are mounted around the exposed section. The retainer plate has an arrestor. The elastic element has a first end attached to the cylinder and a second end attached to a side of the retainer plate. The switch rod includes a first side in contact with the other side of the retainer plate. The end cap is attached to a second side of the switch rod for enclosing the switch rod and the retainer plate. The end cap includes two longitudinal slots through which the retainer rod and the arrestor of the retainer plate extend outward such that the retainer rod and the arrestor of the retainer plate are rectilinearly movable along the longitudinal slots.