EP0778390A3 - Drehschlag-Wendelbohrer - Google Patents

Drehschlag-Wendelbohrer Download PDF

Info

Publication number
EP0778390A3
EP0778390A3 EP96810629A EP96810629A EP0778390A3 EP 0778390 A3 EP0778390 A3 EP 0778390A3 EP 96810629 A EP96810629 A EP 96810629A EP 96810629 A EP96810629 A EP 96810629A EP 0778390 A3 EP0778390 A3 EP 0778390A3
Authority
EP
European Patent Office
Prior art keywords
shaft
twist drill
jacket
pin
longitudinal axis
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
EP96810629A
Other languages
English (en)
French (fr)
Other versions
EP0778390A2 (de
EP0778390B1 (de
Inventor
Werner Kleine
Werner Bongers
Axel Neukirchen
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 EP0778390A2 publication Critical patent/EP0778390A2/de
Publication of EP0778390A3 publication Critical patent/EP0778390A3/de
Application granted granted Critical
Publication of EP0778390B1 publication Critical patent/EP0778390B1/de
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
    • E21B10/58—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)
  • Percussive Tools And Related Accessories (AREA)

Abstract

Ein Drehschlag-Wendelbohrer besitzt einen Schaft (1), der wenigstens eine, spiralförmig in seinem Mantel verlaufende Hauptabfuhmut (4) für Bohrklein aufweist. An seinem einen Schaftende (10) ist eine Schneidplatte (6) mit Hartmetallschneiden (7) vorgesehen, welche die Stimfläche (3) des Schaftendes (10) axial und den Mantel (2) des Schaftes (1) radial überragt. Im Bereich des Schaftendes (10) ist wenigstens ein stiftförmiges Führungselement (11) in den Schaft (11) eingebettet, wobei seine Längsachse im wesentlichen senkrecht zur Längsachse (A) des Schaftes (1) verläuft. Die freie Stimfläche (12) des stiftförmigen Führungselementes (11) weist gegenüber dem Mantel (2) des Schaftes (1) einen Überstand auf, der kleiner ist als der radiale Überstand der Schneidplatte (6).
EP96810629A 1995-12-07 1996-09-25 Drehschlag-Wendelbohrer Expired - Lifetime EP0778390B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19545646A DE19545646A1 (de) 1995-12-07 1995-12-07 Drehschlag-Wendelbohrer
DE19545646 1995-12-07

Publications (3)

Publication Number Publication Date
EP0778390A2 EP0778390A2 (de) 1997-06-11
EP0778390A3 true EP0778390A3 (de) 1998-07-01
EP0778390B1 EP0778390B1 (de) 2003-10-01

Family

ID=7779437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810629A Expired - Lifetime EP0778390B1 (de) 1995-12-07 1996-09-25 Drehschlag-Wendelbohrer

Country Status (6)

Country Link
US (1) US5836408A (de)
EP (1) EP0778390B1 (de)
JP (1) JP3907756B2 (de)
CN (1) CN1079045C (de)
DE (2) DE19545646A1 (de)
DK (1) DK0778390T3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016087A1 (de) * 2004-04-01 2005-10-20 Hilti Ag Bohrwerkzeug
SE533277C2 (sv) * 2008-12-19 2010-08-10 Sandvik Intellectual Property Borrkropp samt stödlist härför
JP5679042B2 (ja) * 2011-02-28 2015-03-04 株式会社タンガロイ ガイドパッド、切削工具本体および切削工具
JP5652540B2 (ja) * 2011-02-28 2015-01-14 株式会社タンガロイ ガイドパッド、切削工具本体および切削工具
CN102635309B (zh) * 2012-04-19 2017-10-17 平阳县鹏伟机械有限责任公司 一种冲击钻机的锤头
CN105750596B (zh) * 2015-12-08 2018-06-05 博世电动工具（中国）有限公司 钻头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226537A2 (de) * 1985-12-16 1987-06-24 HILTI Aktiengesellschaft Gesteinsbohrer
DE3740692A1 (de) * 1987-09-18 1989-04-06 Hawera Probst Kg Hartmetall Gesteinsbohrer
DE3825107A1 (de) * 1988-07-23 1990-01-25 Hilti Ag Gesteinsbohrer mit schneidplatte
EP0452255A2 (de) * 1990-04-09 1991-10-16 HILTI Aktiengesellschaft Gesteinsbohrer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776819A (en) * 1953-10-09 1957-01-08 Philip B Brown Rock drill bit
US3858671A (en) * 1973-04-23 1975-01-07 Kennametal Inc Excavating tool
DE3919095A1 (de) * 1988-07-16 1990-01-18 Hawera Probst Kg Hartmetall Bohrwerkzeug
US5265688A (en) * 1990-04-09 1993-11-30 Hilti Aktiengesellschaft Rock drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226537A2 (de) * 1985-12-16 1987-06-24 HILTI Aktiengesellschaft Gesteinsbohrer
DE3740692A1 (de) * 1987-09-18 1989-04-06 Hawera Probst Kg Hartmetall Gesteinsbohrer
DE3825107A1 (de) * 1988-07-23 1990-01-25 Hilti Ag Gesteinsbohrer mit schneidplatte
EP0452255A2 (de) * 1990-04-09 1991-10-16 HILTI Aktiengesellschaft Gesteinsbohrer

Also Published As

Publication number Publication date
JPH09177466A (ja) 1997-07-08
EP0778390A2 (de) 1997-06-11
DE59610747D1 (de) 2003-11-06
CN1079045C (zh) 2002-02-13
JP3907756B2 (ja) 2007-04-18
DK0778390T3 (da) 2004-02-09
EP0778390B1 (de) 2003-10-01
DE19545646A1 (de) 1997-06-12
US5836408A (en) 1998-11-17
CN1159382A (zh) 1997-09-17

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