| 摘要 |
<p>The buckle (10) has a large ring (11) comprising a rectangular opening (13) under another rectangular opening (14) in a small ring (12) so as to define a transverse slit (16) for strap passage. The slit is set between an outer edge of the small ring and an adjacent side of the large ring's opening, where the buckle is in locking or releasing position of the strap. A connection unit (ML) opposite to the slit has clearance of the rings to define a tubular housing extending parallel to the slit to authorize displacement freedom according to traction axis along with rotation movement of the rings. The connection unit is formed by a tube (17) made of metal or plastic material.</p> |
