EP1225300A3 - Rock drill bit - Google Patents

Rock drill bit Download PDF

Info

Publication number
EP1225300A3
EP1225300A3 EP02405004A EP02405004A EP1225300A3 EP 1225300 A3 EP1225300 A3 EP 1225300A3 EP 02405004 A EP02405004 A EP 02405004A EP 02405004 A EP02405004 A EP 02405004A EP 1225300 A3 EP1225300 A3 EP 1225300A3
Authority
EP
European Patent Office
Prior art keywords
rock drill
drill bit
cutting edge
secondary cutting
arranged radially
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
EP02405004A
Other languages
German (de)
French (fr)
Other versions
EP1225300B1 (en
EP1225300A2 (en
Inventor
Martin Schautt
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 EP1225300A2 publication Critical patent/EP1225300A2/en
Publication of EP1225300A3 publication Critical patent/EP1225300A3/en
Application granted granted Critical
Publication of EP1225300B1 publication Critical patent/EP1225300B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Ein Gesteinsbohrer für Handwerkzeuggeräte mit einem Vollhartstoffkopf (1) mit einer Hauptschneide (2) und zumindest einer radial ausschliesslich im äusseren Bereich angeordneten Nebenschneide (3a, 3b), welche eine bogenförmig verlaufende Nebenschneidkante (4a, 4b) aufweist.

Figure 00000001
A rock drill for hand tools with a solid hard head (1) with a main cutting edge (2) and at least one secondary cutting edge (3a, 3b) arranged radially exclusively in the outer area, which has an arcuate secondary cutting edge (4a, 4b).
Figure 00000001
EP02405004A 2001-01-17 2002-01-08 Rock drill bit Expired - Lifetime EP1225300B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117262 2001-01-17
DE10117262A DE10117262A1 (en) 2001-01-17 2001-01-17 Rock drill has head with main and subsidiary blades, curved and diametrically opposite cutting edges, and point

Publications (3)

Publication Number Publication Date
EP1225300A2 EP1225300A2 (en) 2002-07-24
EP1225300A3 true EP1225300A3 (en) 2003-11-19
EP1225300B1 EP1225300B1 (en) 2006-05-10

Family

ID=7680683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405004A Expired - Lifetime EP1225300B1 (en) 2001-01-17 2002-01-08 Rock drill bit

Country Status (4)

Country Link
US (1) US6843334B2 (en)
EP (1) EP1225300B1 (en)
JP (1) JP3921089B2 (en)
DE (2) DE10117262A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL199976B1 (en) * 2002-06-06 2008-11-28 Kabushiki Kaisha Miyanaga Drill bit
US6883624B2 (en) * 2003-01-31 2005-04-26 Smith International, Inc. Multi-lobed cutter element for drill bit
JP4664911B2 (en) * 2003-11-17 2011-04-06 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Drilling tool and / or lifting tool
GB2427633B (en) * 2005-05-17 2007-08-15 Smith International Drill bit and method of designing a drill bit
US7624825B2 (en) * 2005-10-18 2009-12-01 Smith International, Inc. Drill bit and cutter element having aggressive leading side
DE102006000083A1 (en) * 2006-02-20 2007-08-23 Hilti Ag anchor drill head
DE102006020538A1 (en) * 2006-05-03 2007-11-15 Irwin Industrial Tools Gmbh Drilling head for drilling tool and drilling tool
DE102006000221A1 (en) * 2006-05-10 2007-11-15 Hilti Ag Hard material drilling head
US7743855B2 (en) * 2006-09-05 2010-06-29 Smith International, Inc. Drill bit with cutter element having multifaceted, slanted top cutting surface
PT1906082E (en) 2006-09-26 2009-03-09 Baero Gmbh & Co Kg Illumination installation
DE102007000534A1 (en) * 2007-10-19 2009-04-23 Hilti Aktiengesellschaft percussion
DE202008014317U1 (en) 2008-10-28 2009-01-29 BÄRO GmbH & Co. KG lamp
US7861807B2 (en) * 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
US20140182947A1 (en) 2012-12-28 2014-07-03 Smith International, Inc. Cutting insert for percussion drill bit
US11828108B2 (en) 2016-01-13 2023-11-28 Schlumberger Technology Corporation Angled chisel insert
EP4375476A1 (en) * 2022-11-22 2024-05-29 Hilti Aktiengesellschaft Rock drill with five cutters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012772A1 (en) * 1990-04-21 1991-10-24 Westa Werkzeugbau Hammer drill bit - has cruciform cutters with notches in two opposite ones
EP0965405A2 (en) * 1998-06-20 1999-12-22 HILTI Aktiengesellschaft Drilling tool
EP1045112A1 (en) * 1999-04-15 2000-10-18 HILTI Aktiengesellschaft Masonry drill

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812229A1 (en) * 1968-12-02 1971-01-14 Hilti Ag Drill or drill holder for hammer drills
US3647310A (en) * 1970-04-03 1972-03-07 Mansfield K Morse Universal hole saw arbor
DE2129913A1 (en) * 1971-06-16 1972-12-21 Hilti Ag Rock drill
DE2414354A1 (en) * 1974-03-26 1975-10-16 Heller Geb ROCK DRILLS
DE2807156C2 (en) * 1978-02-20 1986-11-20 Gebrüder Heller Verwaltungsgesellschaft mbH, 2807 Achim Rock drilling tool
DE3426977A1 (en) * 1984-07-21 1986-01-30 Hawera Probst Gmbh + Co, 7980 Ravensburg ROCK DRILL
JP2534676Y2 (en) 1989-04-24 1997-05-07 仁 下城 Coverless passenger car
US5273380A (en) 1992-07-31 1993-12-28 Musacchia James E Drill bit point
DE4339245A1 (en) * 1993-11-18 1995-05-24 Hilti Ag Twist drill
US5466099A (en) * 1993-12-13 1995-11-14 Tdw Delaware, Inc. Cutter shell for forming holes of improved cylindricality
DE4436917A1 (en) * 1994-10-15 1996-04-18 Hilti Ag Drilling unit with hollow core bit and centering mandrel
DE19545647A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
DE19650487A1 (en) * 1996-12-05 1998-06-10 Hilti Ag Drilling tool
DE19711261A1 (en) * 1997-03-18 1998-09-24 Hilti Ag Combi drilling tool
DE19724373A1 (en) * 1997-06-10 1998-12-17 Hilti Ag Rock drill
DE19740277B4 (en) * 1997-09-13 2012-05-24 Robert Bosch Gmbh drilling
DE19748987B4 (en) * 1997-11-06 2007-11-22 Robert Bosch Gmbh Drilling tool, in particular for rotary impact drilling of preferably rock
DE10006932A1 (en) * 2000-02-16 2001-08-23 Hilti Ag Rock drilling tool
DE10006936A1 (en) * 2000-02-16 2001-08-23 Hilti Ag Rock drilling tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012772A1 (en) * 1990-04-21 1991-10-24 Westa Werkzeugbau Hammer drill bit - has cruciform cutters with notches in two opposite ones
EP0965405A2 (en) * 1998-06-20 1999-12-22 HILTI Aktiengesellschaft Drilling tool
EP1045112A1 (en) * 1999-04-15 2000-10-18 HILTI Aktiengesellschaft Masonry drill

Also Published As

Publication number Publication date
JP3921089B2 (en) 2007-05-30
JP2002273723A (en) 2002-09-25
DE10117262A1 (en) 2002-07-18
EP1225300B1 (en) 2006-05-10
US6843334B2 (en) 2005-01-18
DE50206710D1 (en) 2006-06-14
EP1225300A2 (en) 2002-07-24
US20020108789A1 (en) 2002-08-15

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