(19)
(11) EP 0 548 900 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.09.1993 Bulletin 1993/36

(43) Date of publication A2:
30.06.1993 Bulletin 1993/26

(21) Application number: 92121752.7

(22) Date of filing: 21.12.1992
(51) International Patent Classification (IPC)5: E21B 15/00, E21B 7/02, E21B 19/14
(84) Designated Contracting States:
DE ES FR IT SE

(30) Priority: 24.12.1991 IT TO910323 U
23.09.1992 IT TO920228 U

(71) Applicant: SOILMEC S.p.A.
I-47023 Cesena (Province of Forli) (IT)

(72) Inventor:
  • Trevisani, Davide
    I-47023 Cesena (Forli) (IT)

(74) Representative: Lotti, Giorgio 
c/o Ing. Barzanò & Zanardo Milano S.p.A. Corso Vittorio Emanuele II, 61
I-10128 Torino
I-10128 Torino (IT)


(56) References cited: : 
   
       


    (54) Hydraulic drilling machine of telescopic tower type with a rod stowing and handling system


    (57) A drilling machine of the type comprising a drilling tower (10) fixed in a reclinable manner on a transporting vehicle (11) and provided with motive power units (15) and a driving head (30) for driving the drill rods. The drilling tower is of telescopic type slidable along a fixed guide structure or lattice (24) by the action of a hydraulic piston (23), the telescopic tower (22) being provided at its ends with a series of pulleys (27, 35) to allow the movement of flexible transmission means (28, 34) having one end connected to said driving head (30) and the other end connected to a point on the fixed structure (24), so as to form a closed ring about the the tower (22).
    The drilling machine is also provided with a system for stowing and handling the drilling rods.






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