| 摘要 |
The tensioner comprises a rod-shaped element 1 which can be inserted into an elongated slot 2 in the door or wing and a pair of shaped plates 3 which can be inserted into transverse holes 5, 6 of the door. The rod-shaped element 1 comprises a first and second part, 8, 7 aligned screwed one to the other. Both parts, 8, 7 include intermediate shaped portions, 12, 13 engageable with complementary shaped protrusions 18, 19 of the plates 3, which impede their translation. The first part 8 is provided with means of engagement 11 for a tool suitable for forcing its rotation. The second part has a portion 9 with a square section inserted in a corresponding portion 10 or the slot 2 suitable for impeding its rotation. By forcing the rotation of the first part 8 of the rod-shaped element 1, an axial translation of the second part 7 of the rod-shaped element 1 is forced and this, being translated, is translated into a variation of the tension exerted on the material of the door or wing. <IMAGE> |
