Patent ID: 7367086

Claim:
A string type air damper comprising: a cylinder formed in a tubular shape, defining a guide hole at one end portion thereof; a monolithic piston having a string member portion, which moves in the cylinder; a helical spring for biasing the piston toward the other end portion of the cylinder; and the string member portion guided from inside of the cylinder to outside thereof through the guide hole, wherein the string member portion has a flat belt shape, wherein the guide hole of the cylinder has a flat opening and a smooth arcuate face continuing to a wide width edge of the opening so that the belt-shaped string member is bendable and guidable along the arcuate face, wherein the string member portion having the belt shape is bent and guided along the arcuate face of the guide hole, and wherein the cylinder comprises a non-removable closed end and the guide hole is formed in the non-removable closed end of the cylinder.