EP 1257723 A1 20021120 - DEVICE FOR DRILLING, ESPECIALLY PERCUSSION OR ROTARY PERCUSSION DRILLING, HOLES
Title (en)
DEVICE FOR DRILLING, ESPECIALLY PERCUSSION OR ROTARY PERCUSSION DRILLING, HOLES
Title (de)
VORRICHTUNG ZUM BÖHREN, INSBESONDERE SCHLAG- ODER DREHSCHLAGBOHREN, VON BOHRLÖCHERN
Title (fr)
DISPOSITIF DE FORAGE, NOTAMMENT DE FORAGE PERCUTANT OU ROTOPERCUTANT, DE TROUS
Publication
Application
Priority
- AT 0100044 W 20010221
- AT 2892000 U 20000224
Abstract (en)
[origin: WO0163085A1] The invention relates to a device for drilling, especially percussion drilling or rotary percussion drilling, holes (2), comprising a drill bit (3) with a drilling or breaking surface (14), a drill rod (4) for introducing a rotary or percussive force and for introducing a rinsing or cooling fluid into the drill bit (3) and a sheath pipe (5) which defines a hollow space (6) between the drill rod (4) and the inside of the sheath pipe (5) and which is supported on the drill rod (4) or which can be connected to the drill bit (3). According to the invention, in a drilling position, the sheath pipe (5) is situated at a distance from the rear side (16) of the drill bit (3) facing away from the breaking surface (14) and the drill bit (3) can be introduced into a rinsing position for the hollow space (6) between the sheath pipe (5) and the drill rod (4) with its rear side (16) resting on the front end (8) of the sheath pipe (5) facing towards the drill bit (3) or can be connected to the front end (8) of the sheath pipe (5). This enables even lumps of material or drillings (7) to be removed simply and reliably through the hollow space between the drill rod (4) and the sheath pipe (5) and if necessary, enables a defined rinsing position to be adopted for rinsing this hollow space (6).
IPC 1-7
IPC 8 full level
E21B 10/38 (2006.01); E21B 7/20 (2006.01)
CPC (source: EP KR US)
E21B 7/208 (2013.01 - EP KR US); E21B 10/38 (2013.01 - KR)
Citation (search report)
See references of WO 0163085A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0163085 A1 20010830; AT 5717 U1 20021025; AT E282763 T1 20041215; AU 3348101 A 20010903; CZ 20022584 A3 20030212; CZ 300268 B6 20090408; DE 50104538 D1 20041223; EP 1257723 A1 20021120; EP 1257723 B1 20041117; ES 2230272 T3 20050501; HR P20020690 A2 20031231; HR PK20020690 B3 20050630; JP 2003525365 A 20030826; KR 100609936 B1 20060804; KR 20020086575 A 20021118; PL 196595 B1 20080131; PL 356816 A1 20040712; SI 1257723 T1 20050228; SK 11112002 A3 20030109; SK 286787 B6 20090507; TW 528832 B 20030421; US 2003079915 A1 20030501; US 6722454 B2 20040420
DOCDB simple family (application)
AT 0100044 W 20010221; AT 01905482 T 20010221; AT 80942001 U 20011210; AU 3348101 A 20010221; CZ 20022584 A 20010221; DE 50104538 T 20010221; EP 01905482 A 20010221; ES 01905482 T 20010221; HR P20020690 A 20020822; JP 2001561881 A 20010221; KR 20027011093 A 20020823; PL 35681601 A 20010221; SI 200130232 T 20010221; SK 11112002 A 20010221; TW 90104243 A 20010524; US 22613902 A 20020823