| 摘要 |
<p>The invention concerns an assembly for producing a threaded connection, comprising a first and a second tubular component with an axis of revolution (4), each being provided at one of its ends (1; 3) with a male threaded zone (10; 30) produced on the external circumferential surface, said ends (1; 3) each finishing in a terminal surface (15; 35) comprising means (14; 34) together forming a direct drive dog clutch device in order to fix the first and second tubular components in rotation, and comprising a third tubular component which also has an axis of revolution (4) and is provided at each of its ends (2, 2') on its internal circumferential surface with two female threaded zones (20, 20'), one of the two male threaded zones (10; 30) being capable of co-operating on makeup with one of the two female threaded zones (20, 20') while the other male threaded zone can co-operate on makeup with the other female threaded zone, characterized in that the male end (1) of the first tubular component as well as the corresponding female end (2) of the third tubular component comprises means for free rotation (11, 21) such that at the end of makeup of said male threaded zone (10) into said female threaded zone (20), the tubular components carrying said male and female threaded zones are freely rotational with res ect to each other.</p> |
