FR2234079B3 - - Google Patents

Info

Publication number
FR2234079B3
FR2234079B3 FR7421300A FR7421300A FR2234079B3 FR 2234079 B3 FR2234079 B3 FR 2234079B3 FR 7421300 A FR7421300 A FR 7421300A FR 7421300 A FR7421300 A FR 7421300A FR 2234079 B3 FR2234079 B3 FR 2234079B3
Authority
FR
France
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
Application number
FR7421300A
Other languages
French (fr)
Other versions
FR2234079A1 (xx
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.)
STUMPP ET KURZ
Original Assignee
STUMPP ET KURZ
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
Priority claimed from DE19732331467 external-priority patent/DE2331467B2/de
Priority claimed from DE19732348211 external-priority patent/DE2348211C2/de
Priority claimed from DE19732354229 external-priority patent/DE2354229C2/de
Application filed by STUMPP ET KURZ filed Critical STUMPP ET KURZ
Publication of FR2234079A1 publication Critical patent/FR2234079A1/fr
Application granted granted Critical
Publication of FR2234079B3 publication Critical patent/FR2234079B3/fr
Expired 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
    • B23B51/0018—Drills for enlarging a hole
    • B23B51/0045—Drills for enlarging a hole by expanding or tilting the toolhead

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
FR7421300A 1973-06-20 1974-06-19 Expired FR2234079B3 (xx)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19732331467 DE2331467B2 (de) 1973-06-20 1973-06-20 Vorrichtung zum Ausbohren einer Bohrung mit einem zylindrischen und einem konischen Bereich
DE19732348211 DE2348211C2 (de) 1973-09-25 1973-09-25 Bohrwerkzeug
DE19732354229 DE2354229C2 (de) 1973-10-30 1973-10-30 Bohrwerkzeug zur Herstellung eines sich entlang eines Abschnittes in Bohrrichtung erweiternden Bohrloches

Publications (2)

Publication Number Publication Date
FR2234079A1 FR2234079A1 (xx) 1975-01-17
FR2234079B3 true FR2234079B3 (xx) 1977-04-15

Family

ID=27185347

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421300A Expired FR2234079B3 (xx) 1973-06-20 1974-06-19

Country Status (5)

Country Link
JP (1) JPS5729242B2 (xx)
AT (1) AT332099B (xx)
CH (1) CH579207A5 (xx)
FR (1) FR2234079B3 (xx)
GB (1) GB1434173A (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562761U (xx) * 1979-06-20 1981-01-12
AU6420980A (en) * 1979-11-19 1981-05-28 Lategan, L.H. Anchoring of roof bolts
EP0034658A1 (de) * 1980-02-23 1981-09-02 Fischerwerke Arthur Fischer GmbH & Co. KG Bohreinheit zur Herstellung von hinterschnittenen Bohrlöchern
JPS5757614A (en) * 1980-09-24 1982-04-06 Hirado Kinzoku Kogyo Kk Fixing mechanism of automatic stone breaking device
DE8213668U1 (de) * 1982-05-12 1982-08-19 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohrwerkzeug
JPS60191706A (ja) * 1984-03-08 1985-09-30 Miyanaga:Kk 拡径孔部削成装置
GB8425400D0 (en) * 1984-10-08 1984-11-14 Dom Holdings Plc Tool
DE3818079A1 (de) * 1988-05-27 1989-12-07 Plica Werkzeugfabrik Ag Fraeswerkzeug und verfahren zum ausfraesen zylindrischer bohrloecher
GB2248200B (en) * 1990-09-28 1994-02-16 David Patrick Payne Further improvements in drills
GB2291369B (en) * 1994-07-15 1998-06-10 Unicorn Abrasives Ltd Forming holes
DE10311079A1 (de) 2003-03-13 2004-09-30 Powers Fasteners Europe Bv Bohrvorrichtung
DE102008004516B4 (de) * 2008-01-16 2015-02-12 Sergey Ventsel Schneidwerkzeug für Erzeugung hohlen Raums in festen Materialien
CN101793157B (zh) * 2010-03-23 2011-11-30 北京科技大学 一种充填体支护的方法
CN114352206B (zh) * 2021-11-25 2024-01-12 湖北兴龙工具有限公司 扩径用钻头

Also Published As

Publication number Publication date
GB1434173A (en) 1976-05-05
ATA464074A (de) 1975-12-15
AT332099B (de) 1976-09-10
FR2234079A1 (xx) 1975-01-17
CH579207A5 (xx) 1976-08-31
JPS5076680A (xx) 1975-06-23
JPS5729242B2 (xx) 1982-06-22

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