| 摘要 |
<p>Tension matrix (1) and tightening device (2) are equipped with means of attachment (3, 4, 5) capable of making them integral with one another in a reversible manner. These means may be protruding laminar member (5) that can be slid, which is inserted in groove (3) located on one face of casing (6) of tension matrix (1) and one member with a hook (4) with flat part that engages against the flat surface (6a) of the opposing face of casing (6). The above-mentioned means may be comprised of: shaped groove (40) located on the outer surface of one part (41a) attached to casing (41) of tension matrix (101) and flexible fork (39) ending at each of its two ends with protruding part (39a, 39b) capable of being connected in an integral manner in a reversible way with above-mentioned shaped groove (40) of casing (41) of tension matrix (101) when fork (42) itself is inflected to a pre-determined extent. It is possible to apply the tension matrix and to tighten the relative matrix merely by using the hand that is holding the tightening device.</p> |
