DE4134425C2 - - Google Patents

Info

Publication number
DE4134425C2
DE4134425C2 DE19914134425 DE4134425A DE4134425C2 DE 4134425 C2 DE4134425 C2 DE 4134425C2 DE 19914134425 DE19914134425 DE 19914134425 DE 4134425 A DE4134425 A DE 4134425A DE 4134425 C2 DE4134425 C2 DE 4134425C2
Authority
DE
Germany
Prior art keywords
holding elements
elements
head according
cutting
rotary
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.)
Expired - Fee Related
Application number
DE19914134425
Other languages
German (de)
English (en)
Other versions
DE4134425A1 (de
Inventor
Ernst 6431 Hohenroda De Heiderich
Rainer 6419 Burghaun De Goerlich
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.)
Boart Hwf & Co KG Hartmetallwerkzeugfabrik 6419 Burghaun De GmbH
Original Assignee
Boart Hwf & Co KG Hartmetallwerkzeugfabrik 6419 Burghaun De GmbH
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 Boart Hwf & Co KG Hartmetallwerkzeugfabrik 6419 Burghaun De GmbH filed Critical Boart Hwf & Co KG Hartmetallwerkzeugfabrik 6419 Burghaun De GmbH
Priority to DE19914134425 priority Critical patent/DE4134425A1/de
Publication of DE4134425A1 publication Critical patent/DE4134425A1/de
Application granted granted Critical
Publication of DE4134425C2 publication Critical patent/DE4134425C2/de
Granted 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
DE19914134425 1991-10-18 1991-10-18 Drehbohrkopf mit an tragelementen durch loeten befestigten schneidplatten Granted DE4134425A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914134425 DE4134425A1 (de) 1991-10-18 1991-10-18 Drehbohrkopf mit an tragelementen durch loeten befestigten schneidplatten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914134425 DE4134425A1 (de) 1991-10-18 1991-10-18 Drehbohrkopf mit an tragelementen durch loeten befestigten schneidplatten

Publications (2)

Publication Number Publication Date
DE4134425A1 DE4134425A1 (de) 1993-04-22
DE4134425C2 true DE4134425C2 (enExample) 1993-07-29

Family

ID=6442912

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914134425 Granted DE4134425A1 (de) 1991-10-18 1991-10-18 Drehbohrkopf mit an tragelementen durch loeten befestigten schneidplatten

Country Status (1)

Country Link
DE (1) DE4134425A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020108361A1 (de) 2020-03-26 2021-09-30 FormTechnology GmbH Bearbeitungswerkzeug, insbesondere Bohr- oder Meißelwerkzeug zur Bearbeitung von harten Werkstoffen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000085B3 (de) * 2006-02-21 2007-10-11 Hilti Ag Bohrkopf

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059378B (de) * 1956-10-26 1959-06-18 Siemens Ag Drehbohrschneide mit Hartmetalleinsaetzen in den Schneidenfluegeln
CA1220059A (en) * 1983-10-03 1987-04-07 Edmund Isakov Two-prong rotary bit, especially for use with roof drills, and insert therefor
AU2084488A (en) * 1987-07-23 1989-03-01 Kennametal Inc. Masonry two-prong rotary drill bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020108361A1 (de) 2020-03-26 2021-09-30 FormTechnology GmbH Bearbeitungswerkzeug, insbesondere Bohr- oder Meißelwerkzeug zur Bearbeitung von harten Werkstoffen

Also Published As

Publication number Publication date
DE4134425A1 (de) 1993-04-22

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee