CONTROL EQUIPMENT DEVICE FOR A FRAME STRUCTURE BASED ON A SCREW PAIR, EACH SCREW BEARING A DISPLACING NUT

摘要

The control equipment device comprises two hydraulic motors (14, 15) each mounted on the base of each screw (4, 5) integrated in each post (2, 3) of a post pair. The hydraulic motors (14, 15) are series fed from a single source of fluid under pressure and are each shunted by a bypass comprising a hydraulic bypass with automatic or controlled total, partial or gradual opening. The invention is particularly useful for car body manufacturers in particular for road vehicles.