| 摘要 |
<p>invention concerns a device for fixing with screws a fixing element (1) comprising a tubular shaft mounted with a collar (3), wherein a screw is engaged (5). It comprises two plates (24, 25) mobile in translation countering the action of springs (37, 38), one of the plates (24) being mounted on the nose (12) of a screwing/unscrewing appliance (11) while the other plate is equipped with means for gripping (43, 44) the collars (3). The screwing/unscrewing appliance drives a screwing rod (16) passing through two coaxial perforations provided in the plates (24, 25) so as to be engaged in the shaft (2) for screwing the screw (5).</p> |
