Patent ID: 6634058
Filing Date: 2003-10-21
Classification: E05F,E05Y,Y10T

Abstract:
A door closer comprising:a cylinder having a closed first end and an open second end; a sleeve mounted in the open second end of the cylinder, the sleeve including an end plate on an end thereof, the end plate including a central hole, the end plate including a peg and a pressing rod, the peg including a screw hole; a piston rod mounted in the cylinder, the piston rod extending through the central hole of the end plate of the sleeve, the piston rod having an exposed section outside the cylinder; an end cap mounted to the open second end of the cylinder and around the exposed section of the piston rod, the end cap including a slot in a periphery thereof, the end cap further including a screw hole, a fastener being extended through the screw hole of the end cap and into the screw hole of the peg of the sleeve, thereby engaging the end cap with the sleeve; a retainer plate mounted around the exposed section of the piston rod, the retainer plate including a hole, the retainer plate further including a push member projecting therefrom and extending beyond the end cap slot of the end cap; and an elastic element mounted around the exposed section of the piston rod and including a first end attached to a side of the end plate of the sleeve and a second end attached to a side of the retainer plate; wherein 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 the 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.