(19)
(11) EP 2 000 627 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.03.2014 Bulletin 2014/12

(43) Date of publication A2:
10.12.2008 Bulletin 2008/50

(21) Application number: 08157503.7

(22) Date of filing: 03.06.2008
(51) International Patent Classification (IPC): 
E21B 7/06(2006.01)
 E21D 9/10(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 04.06.2007 IT BO20070396

(71) Applicant: Campagna S.r.l.
Calderara di Reno (IT)

(72) Inventor:
  • Campagna, Giovanni
    40012 Calderara Di Reno (IT)

(74) Representative: Bergadano, Mirko et al
Studio Torta S.p.A. Via Viotti, 9
10121 Torino
10121 Torino (IT)

   


(54) Directional boring machine for drilling underground ducts


(57) A directional boring machine (1) for drilling underground ducts, comprising a cutting bit (3) designed to carry out removal of the material, a chuck (2) connected to the cutting bit (3) for ensuring rotation thereof about an axis (Z) of its own, a first actuator (6, 7, 8) designed to cause slewing of the chuck (2) about a first axis (Y) perpendicular to the axis (Z) of rotation of the cutting bit, and a second actuator (10, 11) designed to cause slewing of the chuck (2) about a second axis (X) perpendicular to the first axis (Y) and parallel to a drilling axis (S).







Search report









Search report