FLUID DAMPER

摘要

PURPOSE: A hydraulic damper is provided to stably seal the hollow of a cylinder without pressing the exterior of a rod with a sealing member and to absorb even minute vibration. CONSTITUTION: A hydraulic damper comprises a cylinder(100), a piston(200), and an elastic sealing member(300). The cylinder has a hollow(110) and an opening(120). The piston is moved inside the hollow of the cylinder, and the piston comprises a head(210) which divides the hollow into first and second spaces(110a,110b) and a rod(220) which is coupled to the head to stick out from the cylinder through the opening. The elastic sealing member is fixed to the rod, with the central part which the rod passes through, and installed in the opening to seal the hollow of the cylinder. The elastic sealing member extends or contracts according to the movement of the piston.