Elastomer damper for an actuator cylinder

An elastomer damper for receiving a piston sliding in a cylinder of an actuator cylinder at the stroke end thereof comprising:

• a base portion fixed to an end cap attached to an end of the cylinder, the end cap including an inserting portion extending into the bore of the cylinder when the end cap is attached thereto and defining at an end thereof, a recess for receiving an outer end of the base portion of the elastomer damper when the damper is attached to the end cap;
• and
• a plurality of protruding portions projecting from the outer end of the base portion in the direction toward the piston in the cylinder, the protruding portions having tapered shapes such that cross sectional areas perpendicular to the longitudinal axes thereof gradually decrease in the direction from the outer end of the base portion toward the piston;
• wherein the base portion comprises a flange portion formed generally perpendicular to the longitudinal axes of the protruding portions and being connected to the outer end by a connecting portion formed on the outer end between the protruding portions, the flange portion being disposed in such a manner that a receiving groove is formed between the flange portion and the inserting portion of the end cap for receiving a cylinder gasket for preventing the fluid in the bore of the cylinder from leaking to the outside of the cylinders and wherein the protruding portions extend in the direction toward the piston through apertures formed on the flange portion.