Seal structure for rod-less cylinder has cylinder tube end cover with small short projection around pressure fluid openings without groove for seal

摘要

The cylinder has a cylinder tube with end cover (144) having pressure fluid intakes/outlets (46), and a seal element for tube and cover. The end cover has a small projection (48) around the outer edge of intake/outlet. The seal element (50) consists of a plate-shaped elastic body with a first sealing section (52) extending around an outer edge of the projection, and a second sealing section (54) extending along an inner surface of the cylinder tube.