Patent ID: 6354026
Filing Date: 2002-03-12
Classification: E02D,E02F

Abstract:
A trench rig (1) (51) comprising an excavating tool (6) presenting a working axis (A), and means of transport (2) associated with the excavating tool (6) for transporting the excavating tool (6) in a given direction (D); the rig (1) (51 ) further comprising control means (8) which are directly interposed between the excavating tool (6) and the means of transport (2) for controlling the excavating tool (6) around an axis of orientation (B) which is transversely orientated to the working axis (A) and along the working axis (A); the control means (8) comprising clamping means (15, 16) which are selectively engageable directly onto said excavating tool (6) in order to move the excavating tool (6) along the working axis (A), wherein the clamping means (15, 16) comprise a fixed portion (15) and a mobile portion (16) parallel to said working axis (A); the fixed portion (15) is selectively slidingly coupled to the excavating tool (6) and is interposed between the means of transport (2) and the excavation tool (6), and the mobile portion (16) is mobile in relation to the fixed portion (15) and the excavation tool (6).