DE4441275B4 - Zentrierbohreinsatz für ein Hohlbohrwerkzeug - Google Patents

Zentrierbohreinsatz für ein Hohlbohrwerkzeug Download PDF

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Publication number
DE4441275B4
DE4441275B4 DE4441275A DE4441275A DE4441275B4 DE 4441275 B4 DE4441275 B4 DE 4441275B4 DE 4441275 A DE4441275 A DE 4441275A DE 4441275 A DE4441275 A DE 4441275A DE 4441275 B4 DE4441275 B4 DE 4441275B4
Authority
DE
Germany
Prior art keywords
drilling tool
centering drill
drill bit
centering
hollow drilling
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
DE4441275A
Other languages
German (de)
English (en)
Other versions
DE4441275A1 (de
Inventor
Roland Lay
Guenter Wahl
Otto Glarner
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 GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE4441275A priority Critical patent/DE4441275B4/de
Priority to CH02557/95A priority patent/CH690568A5/de
Priority to FR9512513A priority patent/FR2727043B1/fr
Priority to GB9522584A priority patent/GB2295109B/en
Priority to IT95MI002335A priority patent/IT1276128B1/it
Publication of DE4441275A1 publication Critical patent/DE4441275A1/de
Application granted granted Critical
Publication of DE4441275B4 publication Critical patent/DE4441275B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B23B51/04—Drills for trepanning
    • B23B51/0426—Drills for trepanning with centering devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
DE4441275A 1994-11-19 1994-11-19 Zentrierbohreinsatz für ein Hohlbohrwerkzeug Expired - Fee Related DE4441275B4 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4441275A DE4441275B4 (de) 1994-11-19 1994-11-19 Zentrierbohreinsatz für ein Hohlbohrwerkzeug
CH02557/95A CH690568A5 (de) 1994-11-19 1995-09-08 Zentrierbohreinsatz für ein Hohlbohrwerkzeug und Hohlbohrwerkzeug.
FR9512513A FR2727043B1 (fr) 1994-11-19 1995-10-24 Element de centrage pour un trepan, notamment une cloche de percage comportant un foret de centrage a plusieurs bras de fixation radialement en saillie
GB9522584A GB2295109B (en) 1994-11-19 1995-11-03 Centre drill insert for a trepanning tool
IT95MI002335A IT1276128B1 (it) 1994-11-19 1995-11-14 Inserto per foratura con punta da centri per un utensile perforatore cavo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4441275A DE4441275B4 (de) 1994-11-19 1994-11-19 Zentrierbohreinsatz für ein Hohlbohrwerkzeug

Publications (2)

Publication Number Publication Date
DE4441275A1 DE4441275A1 (de) 1996-05-23
DE4441275B4 true DE4441275B4 (de) 2004-03-25

Family

ID=6533693

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4441275A Expired - Fee Related DE4441275B4 (de) 1994-11-19 1994-11-19 Zentrierbohreinsatz für ein Hohlbohrwerkzeug

Country Status (5)

Country Link
CH (1) CH690568A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE4441275B4 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2727043B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2295109B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1276128B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10213217A1 (de) * 2002-03-25 2003-10-16 Hilti Ag Führungseinsatz für eine Kernbohrkrone
US8790052B2 (en) * 2010-04-27 2014-07-29 Western Saw Bolt on drive assembly for a core drill with high strength spoked reinforcer
US20140334892A1 (en) 2010-04-27 2014-11-13 Western Saw Manufacturers, Inc. Support assembly for a core drill
US10786852B2 (en) * 2010-04-27 2020-09-29 Western Saw Manufacturers, Inc. Support assembly for a core drill
CA2834317A1 (en) * 2011-04-26 2012-11-01 Western Saw Manufacturers, Inc. Bolt on drive assembly for a core drill with high strength spoked reinforcer with adapter
DE202019101214U1 (de) * 2019-03-04 2019-09-05 C. & E. Fein Gmbh Werkzeugeinrichtung für eine Werkzeugmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8335453U1 (de) * 1984-05-03 Hawera Probst Gmbh + Co, 7980 Ravensburg Zentrierbohrer für eine Hohlbohrkrone
DE9302487U1 (de) * 1993-02-20 1994-06-23 Robert Bosch Gmbh, 70469 Stuttgart Bohrwerkzeug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090804A (en) * 1977-02-04 1978-05-23 Haley Ernest K Circular drill with centering device
JPS60263608A (ja) * 1984-06-11 1985-12-27 Masateru Tamura ドリル用コア落下防止具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8335453U1 (de) * 1984-05-03 Hawera Probst Gmbh + Co, 7980 Ravensburg Zentrierbohrer für eine Hohlbohrkrone
DE9302487U1 (de) * 1993-02-20 1994-06-23 Robert Bosch Gmbh, 70469 Stuttgart Bohrwerkzeug

Also Published As

Publication number Publication date
CH690568A5 (de) 2000-10-31
GB2295109B (en) 1997-01-22
FR2727043A1 (fr) 1996-05-24
GB2295109A (en) 1996-05-22
ITMI952335A1 (it) 1997-05-14
IT1276128B1 (it) 1997-10-27
DE4441275A1 (de) 1996-05-23
GB9522584D0 (en) 1996-01-03
FR2727043B1 (fr) 1997-01-03
ITMI952335A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1995-11-14

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee