EP0452255A3 - Stone drill bit - Google Patents

Stone drill bit Download PDF

Info

Publication number
EP0452255A3
EP0452255A3 EP19910810185 EP91810185A EP0452255A3 EP 0452255 A3 EP0452255 A3 EP 0452255A3 EP 19910810185 EP19910810185 EP 19910810185 EP 91810185 A EP91810185 A EP 91810185A EP 0452255 A3 EP0452255 A3 EP 0452255A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
cutting
stone drill
diameter
drill head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910810185
Other languages
German (de)
Other versions
EP0452255A2 (en
EP0452255B1 (en
Inventor
Gerhard Rumpp
Josef Obermeier
Josef Fuenfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP0452255A2 publication Critical patent/EP0452255A2/en
Publication of EP0452255A3 publication Critical patent/EP0452255A3/en
Application granted granted Critical
Publication of EP0452255B1 publication Critical patent/EP0452255B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

The rock drill bit consisting of shank (1) and drill head (2) is provided with a cutting tip (4) as well as cutting pins (5) at the front end (3) of the drill head (2) pointing in the feed direction. The diameter on which the cutting tip (4) is arranged and the diameter on which the cutting pins (5) are arranged form an angle deviating from 90 DEG . An enlargement of the disposal flutes (6) is made possible by the deviation in the angle of both diameters. <IMAGE>
EP91810185A 1990-04-09 1991-03-21 Stone drill bit Expired - Lifetime EP0452255B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4011441 1990-04-09
DE4011441A DE4011441A1 (en) 1990-04-09 1990-04-09 ROCK DRILL

Publications (3)

Publication Number Publication Date
EP0452255A2 EP0452255A2 (en) 1991-10-16
EP0452255A3 true EP0452255A3 (en) 1992-10-28
EP0452255B1 EP0452255B1 (en) 1994-12-14

Family

ID=6404062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810185A Expired - Lifetime EP0452255B1 (en) 1990-04-09 1991-03-21 Stone drill bit

Country Status (8)

Country Link
EP (1) EP0452255B1 (en)
JP (1) JP2880584B2 (en)
AT (1) ATE115677T1 (en)
AU (1) AU631054B2 (en)
CA (1) CA2040052C (en)
DE (2) DE4011441A1 (en)
ES (1) ES2066407T3 (en)
PL (1) PL165702B1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419641A1 (en) * 1994-06-04 1995-12-07 Hilti Ag Rock drill
AT1513U1 (en) * 1995-11-23 1997-06-25 Techmo Entw & Vertriebs Gmbh DRILL BIT
DE19545646A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
DE19734093A1 (en) * 1996-11-11 1998-05-14 Hawera Probst Gmbh Drill bit for boring into masonry especially concrete
JP3819439B2 (en) 1996-11-11 2006-09-06 ハヴェラ プロープスト ゲーエムベーハー Rock drill
DE19703994B4 (en) * 1997-02-03 2006-04-20 Drebo Werkzeugfabrik Gmbh drill
EP0943780A3 (en) * 1998-03-18 2000-07-19 Plica Werkzeugfabrik Ag Drilling tool
DE19811887A1 (en) * 1998-03-18 1999-09-23 Plica Werkzeugfabrik Ag Mollis Hammer drilling tool
DE29901296U1 (en) 1999-01-26 1999-06-10 Plica Werkzeugfabrik Ag, Mollis Drilling tool
DE19964272C2 (en) * 1999-09-16 2003-05-28 Heller Dinklage Gmbh Geb Drills, in particular rock drills
DE19944406C2 (en) * 1999-09-16 2003-07-31 Heller Dinklage Gmbh Geb rock drill
DE10024433A1 (en) 2000-05-19 2001-11-29 Hawera Probst Gmbh Rock drill
EP1302290B1 (en) 2001-10-12 2008-07-02 Robert Bosch Gmbh Drilling tool
DE10208631A1 (en) * 2002-02-28 2003-09-11 Hawera Probst Gmbh drilling
DE10334610B4 (en) * 2003-07-29 2006-04-20 Hilti Ag wellhead
DE10351183A1 (en) * 2003-11-03 2005-06-02 Illinois Tool Works Inc., Glenview rock drill
KR101161896B1 (en) * 2004-08-25 2012-07-03 미츠비시 마테리알 가부시키가이샤 Excavating tool
US7861807B2 (en) 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
KR20110128694A (en) * 2010-05-24 2011-11-30 태양파워(주) Drill bit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825107A1 (en) * 1988-07-23 1990-01-25 Hilti Ag Rock drill with cutting tip

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0428953Y2 (en) * 1986-12-02 1992-07-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825107A1 (en) * 1988-07-23 1990-01-25 Hilti Ag Rock drill with cutting tip

Also Published As

Publication number Publication date
DE4011441A1 (en) 1991-10-10
ES2066407T3 (en) 1995-03-01
EP0452255A2 (en) 1991-10-16
JPH04228796A (en) 1992-08-18
PL289787A1 (en) 1991-10-21
PL165702B1 (en) 1995-01-31
AU631054B2 (en) 1992-11-12
DE59103840D1 (en) 1995-01-26
AU7415991A (en) 1991-10-10
EP0452255B1 (en) 1994-12-14
ATE115677T1 (en) 1994-12-15
CA2040052A1 (en) 1991-10-10
CA2040052C (en) 1998-09-29
JP2880584B2 (en) 1999-04-12

Similar Documents

Publication Publication Date Title
PL289787A1 (en) Stone drill
ATE247537T1 (en) HANDLE DRILL
ES8505276A1 (en) Percussion drilling apparatus
ES2156888T3 (en) ELEMENT FOR OSTEOSYNTHESIS.
SE8605407L (en) Drilling Tools
BR0015600A (en) Method of making a drill bit for percussion rock drilling and a rock drill with button elements
EP0379707A3 (en) Pneumatic pipe-expanding device
AU659731B2 (en) Drill string component
HK1052537A1 (en) Displacement drilling tool and equipment using said tool
AU568347B2 (en) Percussion drill bit with two gauge button and two frontal button inserts
AU548378B2 (en) Attachment to free drillstring siezed in hole
HU9700943D0 (en) Fixing system and process for making fixings
EP1159928A3 (en) Medical handpiece with a rod-like handle
GB2011286A (en) Rock drill bit
EP0351493A3 (en) Stone drill bit
DE58905867D1 (en) Rock core bit.
DK0607958T3 (en) Rock drills
EP0188343A3 (en) Stabilising tool
DE3661465D1 (en) Tool for undercutting bore holes
EP0335609A3 (en) Soil displacement hammer
DE3875710D1 (en) ROCK DRILL.
GB2004479A (en) Tool holder and tool holding arrangement for a rock drilling machine
JPH07301084A (en) Rod system of rock drill
AU6737198A (en) Apparatus and a method for drilling boreholes
ATE89208T1 (en) HOLE SAW.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19921112

17Q First examination report despatched

Effective date: 19930615

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 115677

Country of ref document: AT

Date of ref document: 19941215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59103840

Country of ref document: DE

Date of ref document: 19950126

EAL Se: european patent in force in sweden

Ref document number: 91810185.8

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2066407

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950223

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20050311

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050316

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050425

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20050509

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060321

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060331

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060321

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060322

BERE Be: lapsed

Owner name: *HILTI A.G.

Effective date: 20060331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080306

Year of fee payment: 18

Ref country code: NL

Payment date: 20080203

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080311

Year of fee payment: 18

Ref country code: DE

Payment date: 20080228

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20090331

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070321

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20091001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091123

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090322