Patent ID: 7757439

Claim:
A tensioner for a fabric covered structure formed in an end of at least one elongate rafter, wherein the tensioner comprises: an opening formed in an end of the at least one elongate rafter, wherein the opening is formed along an axis of the at least one elongate rafter; a first fitting disposed between the opening and an end of the at least one elongate rafter, wherein the first fitting is securely connected to the at least one elongate rafter; a rod disposed in the at least one elongate rafter along an axis of the at least one elongate rafter through the first fitting, wherein the rod comprises threads that are exposed to at least a portion of the opening; means for engaging the rod through the first fitting; and a cylindrical sliding block disposed within the at least one elongate rafter and wherein the cylindrical sliding block has an outer diameter substantially similar to an inner diameter of the elongate rafter, and wherein the cylindrical sliding block has a longitudinal threaded aperture receiving a threaded rod and engaging with the threads of the rod, and wherein a hook is attached to the cylindrical sliding block and the hook extends through the opening directly for engaging and tensioning a fabric cover.