Title (en)

ROCK-DRILLING UNIT, DRILL BIT CHANGER, AND METHOD FOR CHANGING DRILL BIT

Title (de)

GESTEINSBOHREINHEIT, GESTEINSBOHRERWECHSLER UND VERFAHREN ZUM WECHSELN EINES BOHRERS IN EINER GESTEINSBOHREINHEIT

Title (fr)

UNITÉ DE PERFORATION DE ROCHERS, CHANGEUR DE TRÉPAN ET PROCÉDÉ POUR CHANGER LE TRÉPAN

Publication

EP 2310616 B1 20171011 (EN)

Application

EP 09769417 A 20090612

Priority

• FI 2009050508 W 20090612
• FI 20085631 A 20080623

Abstract (en)

[origin: WO2009156574A1] The invention relates to a rock-drilling unit, drill bit changer, and method for changing a drill bit.The front part of a feed beam (5) has a retainer (14) and a drill bit changer (15) connected thereto.In changing drill bits (14), a normal retainer fastened to the feed beam is utilised, when the connection between the drill bit and drill rod (11) is opened.The changer also comprises a maga- zine (16) for storing drill bits and a transfer device (18) for transferring the drill bits between the retainer and magazine.

IPC 8 full level

E21B 19/14 (2006.01); E21B 19/18 (2006.01); E21B 19/20 (2006.01)

CPC (source: EP FI)

E21B 7/025 (2013.01 - EP); E21B 19/146 (2013.01 - FI); E21B 19/18 (2013.01 - EP FI); E21B 19/20 (2013.01 - FI)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2009156574 A1 20091230; AU 2009264153 A1 20091230; AU 2009264153 B2 20120405; CA 2722260 A1 20091230; CA 2722260 C 20130827; CN 102066690 A 20110518; CN 102066690 B 20140924; EP 2310616 A1 20110420; EP 2310616 A4 20151202; EP 2310616 B1 20171011; FI 121437 B 20101115; FI 20085631 A0 20080623; FI 20085631 A 20091224; JP 2011525575 A 20110922; JP 5329657 B2 20131030; ZA 201008193 B 20110727

DOCDB simple family (application)

FI 2009050508 W 20090612; AU 2009264153 A 20090612; CA 2722260 A 20090612; CN 200980122797 A 20090612; EP 09769417 A 20090612; FI 20085631 A 20080623; JP 2011514075 A 20090612; ZA 201008193 A 20101116