| 摘要 |
<p>An adjustable socket drive device for wrench, drill and the like comprises a body means (2) having a plurality of parallel cylindrical seats (3) each assigned to house a respective free rotating cylindrical stem means (4) each having a respective eccentric elongated jaw means (5) protruding outside the cylindrical seats (3). Said device (1) further comprising rotating means (6) engaged to the stem means (4) for the rotation of said stem means (4) and of the jaw means (5) adapting the distance between the lasts to accommodate nuts, bolts ad stems of different size. The rotating means (6) comprises a set of slots (10) carried out through the body means (2) and each debouching into a respective cylindrical seats (3) and it comprises a set of concave scores (11) each carried out onto a respective stem means (4), said slots (10) and scores (11) are respectively parallel to the geometric axis of the cylindrical seats (3) and helicoidally shaped or vice versa and each slot (10) and the respective score (11) are slidingly engaged by a corresponding coupling means (12) each moved along the respective slot (10) by an operating means (14) to control the rotation of the jaw means (5) and the mutual distance thereof.</p> |
