DE3803910A1 - Bohrer - Google Patents

Bohrer

Info

Publication number
DE3803910A1
DE3803910A1 DE3803910A DE3803910A DE3803910A1 DE 3803910 A1 DE3803910 A1 DE 3803910A1 DE 3803910 A DE3803910 A DE 3803910A DE 3803910 A DE3803910 A DE 3803910A DE 3803910 A1 DE3803910 A1 DE 3803910A1
Authority
DE
Germany
Prior art keywords
flank
tip
drill
drill according
edges
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.)
Ceased
Application number
DE3803910A
Other languages
German (de)
English (en)
Inventor
Jun Donald C Pennington
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.)
Robert Bosch Tool Corp
Original Assignee
Vermont American Corp
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 Vermont American Corp filed Critical Vermont American Corp
Publication of DE3803910A1 publication Critical patent/DE3803910A1/de
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/75—Stone, rock or concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting inserts

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)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
DE3803910A 1987-02-09 1988-02-09 Bohrer Ceased DE3803910A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1242887A 1987-02-09 1987-02-09

Publications (1)

Publication Number Publication Date
DE3803910A1 true DE3803910A1 (de) 1988-08-18

Family

ID=21754932

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3803910A Ceased DE3803910A1 (de) 1987-02-09 1988-02-09 Bohrer

Country Status (9)

Country Link
JP (1) JPS63239007A (enrdf_load_stackoverflow)
CN (1) CN1016949B (enrdf_load_stackoverflow)
BR (1) BR8800464A (enrdf_load_stackoverflow)
CA (1) CA1324013C (enrdf_load_stackoverflow)
CH (1) CH674335A5 (enrdf_load_stackoverflow)
DE (1) DE3803910A1 (enrdf_load_stackoverflow)
DK (1) DK61888A (enrdf_load_stackoverflow)
FR (1) FR2610553B1 (enrdf_load_stackoverflow)
IT (1) IT1219838B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
US6174111B1 (en) 1994-12-12 2001-01-16 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
WO2003061927A1 (en) * 2002-01-19 2003-07-31 Armed Ltd Tile cutting attachment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720589A1 (de) * 1997-05-16 1998-11-19 Hilti Ag Bohrwerkzeug
JP7380813B1 (ja) * 2022-11-29 2023-11-15 株式会社タンガロイ 穴あけ工具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544433A1 (de) * 1985-12-16 1987-06-19 Hilti Ag Gesteinsbohrer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE698003C (de) * 1938-06-29 1940-10-30 Spiralbohrer Werkzeug Und Masc Spiralbohrer fuer zaehharte Werkstoffe
DE2807197A1 (de) * 1978-02-20 1979-08-30 Heller Verwaltungsges Bohrkopf eines drehschlagbohrers
DE8215364U1 (de) * 1982-05-24 1982-10-14 Weissenfeld, Günther, 5630 Remscheid Spitzbohrwerkzeug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544433A1 (de) * 1985-12-16 1987-06-19 Hilti Ag Gesteinsbohrer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
US6174111B1 (en) 1994-12-12 2001-01-16 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
WO2003061927A1 (en) * 2002-01-19 2003-07-31 Armed Ltd Tile cutting attachment

Also Published As

Publication number Publication date
BR8800464A (pt) 1988-09-20
FR2610553B1 (fr) 1993-05-07
CN1032131A (zh) 1989-04-05
FR2610553A1 (fr) 1988-08-12
DK61888D0 (da) 1988-02-08
IT1219838B (it) 1990-05-24
CA1324013C (en) 1993-11-09
DK61888A (da) 1988-08-10
IT8847603A0 (it) 1988-02-04
CH674335A5 (enrdf_load_stackoverflow) 1990-05-31
CN1016949B (zh) 1992-06-10
JPS63239007A (ja) 1988-10-05

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection