EP0226537A3 - Rock drill bit - Google Patents

Rock drill bit

Info

Publication number
EP0226537A3
EP0226537A3 EP86810551A EP86810551A EP0226537A3 EP 0226537 A3 EP0226537 A3 EP 0226537A3 EP 86810551 A EP86810551 A EP 86810551A EP 86810551 A EP86810551 A EP 86810551A EP 0226537 A3 EP0226537 A3 EP 0226537A3
Authority
EP
European Patent Office
Prior art keywords
drill
cutting
pins
face
rock drill
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
EP86810551A
Other languages
German (de)
Other versions
EP0226537B1 (en
EP0226537A2 (en
Inventor
Dieter Scholz
Friedrich Flesch
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6288555&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0226537(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP0226537A2 publication Critical patent/EP0226537A2/en
Publication of EP0226537A3 publication Critical patent/EP0226537A3/en
Application granted granted Critical
Publication of EP0226537B1 publication Critical patent/EP0226537B1/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-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
    • E21B10/44—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

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)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Steroid Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Electrotherapy Devices (AREA)
  • Drilling Tools (AREA)

Abstract

An axially elongated rock drill includes an axially extending shank and a drill head on one end of the shank. The drill head has a drill face extending transversely of the axial direction of the rock drill. A hard metal cutting plate and hard metal cutting pins are set in the drill face. The cutting pins reduce the wear on the cutting plate and afford better support of the drill. The cutting pins are arranged, in part, parallel to the axis of the drill, and, in part, inclined to the drill axis. The cutting plate has a cutting edge which generates a cutting plane as the drill is rotated with the ends of the cutting pins projecting from the drill face being located in the generated cutting plane.
EP86810551A 1985-12-16 1986-12-01 Rock drill bit Expired - Lifetime EP0226537B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3544433A DE3544433C2 (en) 1985-12-16 1985-12-16 Rock drill
DE3544433 1985-12-16

Publications (3)

Publication Number Publication Date
EP0226537A2 EP0226537A2 (en) 1987-06-24
EP0226537A3 true EP0226537A3 (en) 1988-11-23
EP0226537B1 EP0226537B1 (en) 1994-06-08

Family

ID=6288555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810551A Expired - Lifetime EP0226537B1 (en) 1985-12-16 1986-12-01 Rock drill bit

Country Status (10)

Country Link
US (1) US4765419A (en)
EP (1) EP0226537B1 (en)
JP (2) JPS62141293A (en)
AT (1) ATE106985T1 (en)
AU (1) AU587514B2 (en)
CA (1) CA1266651A (en)
DE (2) DE3544433C2 (en)
DK (1) DK173050B1 (en)
ES (1) ES2056047T3 (en)
FI (1) FI81295C (en)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1324013C (en) * 1987-02-09 1993-11-09 Vermont American Corporation Masonary drill tip with strong and chamfered cutting edges
DE3707798A1 (en) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall ROCK DRILL
US4883135A (en) * 1987-09-18 1989-11-28 Hawera Probst Gmbh & Co. Apparatus for rock drill
DE3875710D1 (en) * 1987-12-01 1992-12-10 Hawera Probst Kg Hartmetall ROCK DRILL.
DE3742661A1 (en) * 1987-12-16 1989-07-13 Hawera Probst Kg Hartmetall ROCK DRILL
US5004056A (en) * 1988-05-23 1991-04-02 Goikhman Yakov A Percussion-rotary drilling tool
JPH04500101A (en) * 1988-05-23 1992-01-09 ヴセソユズニイ　ナウチノ―イススレドヴァテルスキイ　インスティトゥト　トランスポルトノゴ　ストロイテルストヴァ　（ツニイス） Impact - Rotary drilling tool
DE3820695C2 (en) * 1988-06-18 1996-07-25 Hawera Probst Kg Hartmetall Rock drill
DE3825107C2 (en) * 1988-07-23 1996-07-11 Hilti Ag Rock drill with cutting insert
JP2784830B2 (en) * 1989-09-04 1998-08-06 ソニー株式会社 Headphones
JPH0746469Y2 (en) * 1989-10-25 1995-10-25 新日本製鐵株式会社 Drill bit
JPH0810517Y2 (en) * 1989-10-25 1996-03-29 新日本製鐵株式会社 Drill bit
DE4032066C2 (en) * 1990-10-05 1999-04-15 Siegfried Treitz Arrangement and fastening of pin-shaped cutting inserts in rock drill bits
DE4101458A1 (en) * 1991-01-19 1992-07-23 Wolf Thomas FOR A CUTTING DRILL DRIVER DESIGNED WITH AXIAL PRESSURE AND BLOCKING
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
TW299385B (en) 1994-12-12 1997-03-01 Black & Decker Inc Cutting tools for drilling concrete, aggregate, masonry or the like materials
US5575342A (en) * 1995-05-26 1996-11-19 Sandvik Ab Percussion drill bit, an insert for use therein and a method of drilling a bore
US5641028A (en) * 1995-08-10 1997-06-24 Black & Decker Inc. Drill bit with debris conveying flute
DE19537900B4 (en) * 1995-10-11 2005-11-03 Irwin Industrial Tool Company (N.D.Ges.D. Staates Delaware), Freeport rotary drill
DE19545646A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
DE19545647A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
US5732784A (en) * 1996-07-25 1998-03-31 Nelson; Jack R. Cutting means for drag drill bits
US6044919A (en) * 1997-07-31 2000-04-04 Briese Industrial Technologies, Inc. Rotary spade drill arrangement
US6039127A (en) * 1998-03-13 2000-03-21 Loudon Enterprises, Inc. Rock drill
EP0943780A3 (en) * 1998-03-18 2000-07-19 Plica Werkzeugfabrik Ag Drilling tool
US20020164218A1 (en) * 2001-02-28 2002-11-07 Ruben Aguirre Fluted drill tool with frustum cutters
DE10351183A1 (en) * 2003-11-03 2005-06-02 Illinois Tool Works Inc., Glenview rock drill
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
EP1860274B1 (en) * 2006-04-26 2008-07-02 BAUER Maschinen GmbH Drill bit
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US8590644B2 (en) 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US9051795B2 (en) * 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US8616305B2 (en) * 2006-08-11 2013-12-31 Schlumberger Technology Corporation Fixed bladed bit that shifts weight between an indenter and cutting elements
US8292372B2 (en) 2007-12-21 2012-10-23 Hall David R Retention for holder shank
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US7637574B2 (en) * 2006-08-11 2009-12-29 Hall David R Pick assembly
US9145742B2 (en) * 2006-08-11 2015-09-29 Schlumberger Technology Corporation Pointed working ends on a drill bit
US8960337B2 (en) 2006-10-26 2015-02-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
JP4890515B2 (en) * 2008-08-08 2012-03-07 ウエタックス株式会社 Speaker
JP4662508B1 (en) * 2010-03-01 2011-03-30 株式会社オーディオテクニカ earphone
JP6136016B2 (en) 2012-01-30 2017-05-31 パナソニックＩｐマネジメント株式会社 earphone
US8971561B2 (en) 2012-06-20 2015-03-03 Apple Inc. Earphone having a controlled acoustic leak port
US9712905B2 (en) 2012-06-20 2017-07-18 Apple Inc. Headsets with non-occluding earbuds
US8976994B2 (en) 2012-06-20 2015-03-10 Apple Inc. Earphone having an acoustic tuning mechanism
US9258663B2 (en) 2012-09-07 2016-02-09 Apple Inc. Systems and methods for assembling non-occluding earbuds
EP3073758B1 (en) 2013-11-19 2021-05-19 Sony Corporation Headphone and acoustic characteristic adjustment method
CA3048753C (en) 2016-01-29 2021-10-26 Nobel Biocare Services Ag Dentistry tool
GB201706687D0 (en) * 2017-04-27 2017-06-14 Rolls Royce Plc A cutting tool
CN115263194A (en) * 2022-08-16 2022-11-01 武汉工程大学 One-step forming drill bit and method for drilling based on mine blasting blasthole

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510265A1 (en) * 1975-03-08 1976-09-16 Richard Karnebogen Drilling bit for masonry drilling machine - has central conical convex cutting surface with hard metal inserts
DE2528003A1 (en) * 1975-06-24 1977-01-20 Krupp Gmbh ROCK DRILLS
DE2601302A1 (en) * 1976-01-15 1977-07-21 Richard Karnebogen Percussive rock drill bit - has four cutters along arms of angled cross offset from bit centre and fifth cutter pointed to cross intercept
DE2856205A1 (en) * 1978-12-27 1980-07-10 Hilti Ag Rock drill head assembly - has protruding steel insets in ring segments with axial grooves and central recess
EP0048908A1 (en) * 1980-09-26 1982-04-07 Hawera Probst GmbH + Co. Drill, particularly for rotary percussion drilling

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1056132A (en) * 1911-05-05 1913-03-18 Nikolaus Staub Rock-drill.
FR1006219A (en) * 1947-12-05 1952-04-21 Sharpener with extra hard insert
CH311119A (en) * 1953-09-02 1955-11-30 Dionisotti Joseph Foil for perforating rocks.
US3163246A (en) * 1963-04-18 1964-12-29 Westinghouse Air Brake Co Rock drill bit
US3283837A (en) * 1965-02-01 1966-11-08 Acme Fishing Tool Company Drill bit
US3589456A (en) * 1969-08-25 1971-06-29 Acme Fishing Tool Co Drill bit
SU636384A1 (en) * 1974-02-06 1978-12-05 Институт Горного Дела Со Ан Ссср Bit for percussion-rotary drilling
DE2542001A1 (en) * 1975-09-20 1977-03-24 Bosch Gmbh Robert Drill for hard materials, esp. concrete - has hard surface layer and is suitable for do-it-yourself applications
JPS6014B2 (en) * 1977-09-05 1985-01-05 日東化学工業株式会社 Method for removing water-soluble proteins, etc. from shredded meat
DE3004077C2 (en) * 1980-02-05 1986-12-18 Robert Bosch Gmbh, 7000 Stuttgart Drill bit
DE3044775A1 (en) * 1980-11-27 1982-07-08 Hilti AG, 9494 Schaan ROCK DRILL
AU1111183A (en) * 1982-02-03 1983-08-11 Witzand, H.H.G. Drill bit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510265A1 (en) * 1975-03-08 1976-09-16 Richard Karnebogen Drilling bit for masonry drilling machine - has central conical convex cutting surface with hard metal inserts
DE2528003A1 (en) * 1975-06-24 1977-01-20 Krupp Gmbh ROCK DRILLS
DE2601302A1 (en) * 1976-01-15 1977-07-21 Richard Karnebogen Percussive rock drill bit - has four cutters along arms of angled cross offset from bit centre and fifth cutter pointed to cross intercept
DE2856205A1 (en) * 1978-12-27 1980-07-10 Hilti Ag Rock drill head assembly - has protruding steel insets in ring segments with axial grooves and central recess
EP0048908A1 (en) * 1980-09-26 1982-04-07 Hawera Probst GmbH + Co. Drill, particularly for rotary percussion drilling

Also Published As

Publication number Publication date
EP0226537B1 (en) 1994-06-08
DE3544433C2 (en) 1995-12-14
DE3689900D1 (en) 1994-07-14
EP0226537A2 (en) 1987-06-24
JPH086865Y2 (en) 1996-02-28
ES2056047T3 (en) 1994-10-01
JPH0720386U (en) 1995-04-11
CA1266651A (en) 1990-03-13
AU6647586A (en) 1987-06-18
ATE106985T1 (en) 1994-06-15
FI81295C (en) 1990-10-10
DK603586A (en) 1987-06-17
FI865068A (en) 1987-06-17
FI865068A0 (en) 1986-12-12
DK603586D0 (en) 1986-12-15
US4765419A (en) 1988-08-23
JPS62141293A (en) 1987-06-24
DK173050B1 (en) 1999-12-06
AU587514B2 (en) 1989-08-17
DE3544433A1 (en) 1987-06-19
FI81295B (en) 1990-06-29

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