초록 ▼

A connecting device having a fastening ring which has an elliptical cross-section and a slot. Projections 18 are on the inner surface of major axis portions of the fastening ring. An outer ring, which also has an elliptical cross-section, larger than the fastening ring and from which a lever project

A connecting device having a fastening ring which has an elliptical cross-section and a slot. Projections 18 are on the inner surface of major axis portions of the fastening ring. An outer ring, which also has an elliptical cross-section, larger than the fastening ring and from which a lever projects, is fitted around the outer surface of the fastening ring. When the fastening ring is initially placed on a post, the minor axis portions and the projections on the major axis portions contact the outer surface of the post. When the outer ring is rotated 90°clockwise by means of the lever, the minor axis portions of the outer ring bear against the outside of the major axis portions of the fastening ring, thereby pressing them inwardly. In this way, the fastening ring is tightened and the slot narrows as a consequence. As a result, the fastening ring is securely attached to the post.

대표청구항 ▼

A device for connection to a post comprising a fastening ring having a fastening internal diameter and adapted to surround said post, an outer ring adapted to surround said fastening ring and rotate between an initial position, wherein no inward pressure is exerted on said fastening ring, and a tigh

A device for connection to a post comprising a fastening ring having a fastening internal diameter and adapted to surround said post, an outer ring adapted to surround said fastening ring and rotate between an initial position, wherein no inward pressure is exerted on said fastening ring, and a tightened position, wherein inward pressure is exerted on said fastening ring, said inward pressure causing said fastening diameter to decrease and said fastening ring to grip said post, a lever extending radially outwardly, on said outer ring, said lever adapted to rotate said rotatable ring between said initial position and said tightening position, a locking mechanism adapted to retain said lever in said tightened position, said locking mechanism comprising an engaging hole in said lever, a hook mounted on said fastening ring and complementary to said hole when said outer ring is in said tightened position, so that said hook enters said hole in said tightened position.