DE3745046C2 - Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug - Google Patents

Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug

Info

Publication number
DE3745046C2
DE3745046C2 DE3745046A DE3745046A DE3745046C2 DE 3745046 C2 DE3745046 C2 DE 3745046C2 DE 3745046 A DE3745046 A DE 3745046A DE 3745046 A DE3745046 A DE 3745046A DE 3745046 C2 DE3745046 C2 DE 3745046C2
Authority
DE
Germany
Prior art keywords
tool
rotary
grooves
drivers
rotary driving
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 - Lifetime
Application number
DE3745046A
Other languages
German (de)
English (en)
Inventor
Karl Dr Ing Wanner
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6327962&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3745046(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE3745046A priority Critical patent/DE3745046C2/de
Application granted granted Critical
Publication of DE3745046C2 publication Critical patent/DE3745046C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/008—Chucks; Expansion mandrels; Adaptations thereof for remote control with arrangements for transmitting torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1071—Retention by balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/026—Grooves
    • B23B2231/0264—Axial grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/104—Markings, i.e. symbols or other indicating marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0003—Details of shafts of percussive tool bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B25D2217/0042—Ball-shaped locking members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/155—Marks, e.g. identification marks, indication scales, visualising means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17068—Rotary socket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17743—Reciprocating cam sleeve
    • Y10T279/17752—Ball or roller jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/21—Cutting by use of rotating axially moving tool with signal, indicator, illuminator or optical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Gripping On Spindles (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)
DE3745046A 1987-05-20 1987-05-20 Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug Expired - Lifetime DE3745046C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3745046A DE3745046C2 (de) 1987-05-20 1987-05-20 Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3745046A DE3745046C2 (de) 1987-05-20 1987-05-20 Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug
DE19873716915 DE3716915A1 (de) 1987-05-20 1987-05-20 Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung

Publications (1)

Publication Number Publication Date
DE3745046C2 true DE3745046C2 (de) 1996-07-25

Family

ID=6327962

Family Applications (3)

Application Number Title Priority Date Filing Date
DE3745046A Expired - Lifetime DE3745046C2 (de) 1987-05-20 1987-05-20 Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug
DE19873716915 Granted DE3716915A1 (de) 1987-05-20 1987-05-20 Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
DE88903759T Expired - Lifetime DE3864023D1 (en) 1987-05-20 1988-05-03 Torque coupling e.g. for hand held electric impact drill

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE19873716915 Granted DE3716915A1 (de) 1987-05-20 1987-05-20 Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
DE88903759T Expired - Lifetime DE3864023D1 (en) 1987-05-20 1988-05-03 Torque coupling e.g. for hand held electric impact drill

Country Status (5)

Country Link
US (1) US5028057A (enExample)
EP (1) EP0357648B1 (enExample)
JP (1) JP2663981B2 (enExample)
DE (3) DE3745046C2 (enExample)
WO (1) WO1988009245A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002167A1 (de) 2010-02-22 2011-08-25 Hilti Aktiengesellschaft Herstellungsverfahren für ein Einsteckende
DE102010031313A1 (de) * 2010-07-14 2012-01-19 Hilti Aktiengesellschaft Meisselwerkzeug, Verfahren zur Herstellung eines Meisselwerkzeugsystems und Handwerkzeugmaschine

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35174E (en) * 1987-05-20 1996-03-12 Robert Bosch Gmbh Tool shaft for a tool of the percussive and rotative type
DE3824894A1 (de) * 1988-07-22 1990-01-25 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
FR2643293B1 (fr) * 1989-02-22 1991-05-31 Borrelly Albert Procede d'identification et de tri des rondelles elastiques a dents
US4953640A (en) * 1989-08-21 1990-09-04 Kurt Ewald H Quick detach bit
DE3941646A1 (de) * 1989-12-16 1991-06-20 Heller Werkzeug Gmbh Geb Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE59107870D1 (de) * 1990-10-16 1996-07-04 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen
DE4105414A1 (de) * 1991-02-21 1992-08-27 Hilti Ag Werkzeug und werkzeughalter fuer handwerkzeuggeraete
DE4137120A1 (de) * 1991-11-12 1993-05-13 Hilti Ag Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE4141846A1 (de) * 1991-12-18 1993-06-24 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DE4200643A1 (de) * 1992-01-13 1993-07-15 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4227949A1 (de) * 1992-08-22 1994-02-24 Bosch Gmbh Robert Werkzeug für Handwerkzeugmaschinen
JPH0646808U (ja) * 1992-12-02 1994-06-28 株式会社オカダ工具 石材用ドリルのアダプター構造
DE4313580A1 (de) * 1993-04-26 1994-10-27 Hilti Ag Werkzeugeinspannschaft
DE4338818A1 (de) * 1993-11-13 1995-05-18 Hawera Probst Kg Hartmetall Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung
DE4341971A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
FI962843A7 (fi) * 1994-01-14 1996-07-12 Bosch Gmbh Robert Käsityökalukoneiden laite työkalujen ottamiseksi mukaan pyörimiseen
DE4400969A1 (de) * 1994-01-14 1995-07-20 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
DE4402802C2 (de) * 1994-01-31 2003-01-30 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE19501026C2 (de) 1995-01-14 2001-08-09 Drebo Werkzeugfab Gmbh Einrichtung zur automatischen Erkennung werkzeugspezifischer Daten sowie ein Werkzeug mit einer Kodierung für werkzeugspezifische Daten
JP2000501031A (ja) * 1995-10-12 2000-02-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 穿孔運転および／または打撃運転を行う電気的な機械に用いられる挿入工具および工具ホルダ
DE19729070C1 (de) * 1997-07-08 1998-06-18 Hofmann Astrid Schlagbohrendes Werkzeug
DE19734140A1 (de) * 1997-08-07 1999-02-11 Hawera Probst Gmbh Bohrwerkzeug
DE29813159U1 (de) * 1998-07-23 1998-12-03 Berner GmbH, 74653 Künzelsau Werkzeughalter und darin einsetzbares Werkzeug
US6347292B1 (en) 1999-02-17 2002-02-12 Den-Con Electronics, Inc. Oilfield equipment identification method and apparatus
DE10005366A1 (de) * 2000-02-07 2001-08-09 Hilti Ag Werkzeughalter
JP2001225282A (ja) * 2000-02-10 2001-08-21 Hitachi Koki Co Ltd 衝撃工具の工具保持装置
US6688610B2 (en) * 2000-05-12 2004-02-10 Power Tool Holders Incorporated Chuck with quick change
US6533291B2 (en) 2001-02-14 2003-03-18 Power Tool Holders Incorporated Chuck having quick change mechanism
JP2003011004A (ja) * 2001-06-28 2003-01-15 Kyocera Corp 損耗センサ付工具およびその製造方法
AU2002326946A1 (en) * 2001-09-17 2003-04-01 Milwaukee Electric Tool Corporation Rotary hammer
US6834864B2 (en) * 2001-10-24 2004-12-28 Power Tool Holders Incorporated Chuck having quick change mechanism
DE10243403A1 (de) * 2002-09-18 2004-04-01 Hawera Probst Gmbh Verfahren zur Herstellung eines Werkzeugs, insbesondere eines Bohrers oder Fräsers
DE10244230B4 (de) * 2002-09-23 2014-10-30 Drebo Werkzeugfabrik Gmbh Kraftübertragungsvorrichtung
GB2393931A (en) * 2002-10-10 2004-04-14 Black & Decker Inc Tool for a rotary hammer
AU2002952999A0 (en) * 2002-11-29 2002-12-12 David Rees Mugeli Metal machining and drilling bits
USD497800S1 (en) 2003-07-15 2004-11-02 Irwin Industrial Tool Company Display package for a tool bit
USD495596S1 (en) 2003-07-15 2004-09-07 Irwin Industrial Tool Company Display package for a tool bit
USD497105S1 (en) 2003-07-15 2004-10-12 Irwin Industrial Tool Company Display package for a tool bit
EP1533058A1 (de) * 2003-11-14 2005-05-25 A & M Electric Tools GmbH Spannfutter
DE10357380A1 (de) 2003-12-05 2005-06-30 Hilti Ag Einsteckende für ein drehendes und/oder schlagendes Werkzeug
DE10360008B4 (de) * 2003-12-19 2006-04-06 Wacker Construction Equipment Ag Vorrichtung für einen Bohr- oder Schlaghammer mit Werkzeugaufnahme
DE102004026850A1 (de) 2004-06-02 2005-12-29 Hilti Ag Einsteckende für ein drehendes und/oder schlagendes Werkzeug
DE112005003148T5 (de) * 2004-12-17 2007-10-31 Milwaukee Electric Tool Corp., Brookfield Intelligentes Zubehör für Elektrowerkzeuge
DE102006036955A1 (de) * 2006-08-08 2008-02-14 Robert Bosch Gmbh Werkzeugaufnahme
DE102007000363A1 (de) 2007-07-02 2009-01-08 Hilti Aktiengesellschaft Rührwerkzeug mit Einsteckende
CN102689039A (zh) * 2012-06-29 2012-09-26 上海海事大学 一种用于厚板型硬质合金材料钻孔工艺的杆身组件
US10507568B2 (en) * 2016-12-15 2019-12-17 Caterpillar Inc. Hammer work tool having multi-position retention collar
DE102020111892A1 (de) 2020-04-30 2021-11-04 Aesculap Ag Verfahren und System zur Erkennung werkzeugspezifischer Daten eines Werkzeugs für ein chirurgisches Instrument, sowie Handstück und Werkzeug für dieses System
WO2022155479A1 (en) * 2021-01-14 2022-07-21 Milwaukee Electric Tool Corporation Tool bit
US20240390989A1 (en) * 2021-10-20 2024-11-28 Milwaukee Electric Tool Corporation Tool bit and bit holder
WO2024120661A1 (en) * 2022-12-05 2024-06-13 Seco Tools Ab A cutting insert and a cutting tool comprising such a cutting insert
AT18124U1 (de) * 2023-01-11 2024-02-15 Ceratizit Austria Gmbh Werkzeuggrundkörper

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DE2618596A1 (de) * 1976-04-28 1977-11-10 Bosch Gmbh Robert Werkzeughalter
DE2405938B2 (de) * 1974-02-08 1979-10-31 Impex-Essen Vertrieb Von Werkzeugen Gmbh, 8800 Ansbach Werkzeughalterung für Handschlaggeräte, insbesondere Elektro-Bohrhämmer
DE2551125C2 (de) * 1975-11-14 1987-04-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung

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NL175040C (nl) * 1974-08-19 1984-09-17 Durofac Kartro As Booropneeminrichting voor een klopboormachine.
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JPS57184609A (en) * 1981-04-03 1982-11-13 Bosch Gmbh Robert Holder for tool
DE3205063C2 (de) * 1981-04-03 1986-10-09 Robert Bosch Gmbh, 7000 Stuttgart Werkzeughalter
DK333581A (da) * 1981-07-24 1983-01-25 Duforac Kartro A S Vaerktoejsskaft isaer til slag eller hammerbor
GB2120632B (en) * 1982-05-14 1985-07-31 Utsch Kg Erich Code bar for identifying mass produced articles
DE3443971A1 (de) * 1984-12-01 1986-06-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Hammerbohrer
FR2635039B1 (fr) * 1988-08-05 1990-11-02 Prospection & Inventions Foret comprenant une queue avec des rainures

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DE2405938B2 (de) * 1974-02-08 1979-10-31 Impex-Essen Vertrieb Von Werkzeugen Gmbh, 8800 Ansbach Werkzeughalterung für Handschlaggeräte, insbesondere Elektro-Bohrhämmer
DE2551125C2 (de) * 1975-11-14 1987-04-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung
DE2618596A1 (de) * 1976-04-28 1977-11-10 Bosch Gmbh Robert Werkzeughalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002167A1 (de) 2010-02-22 2011-08-25 Hilti Aktiengesellschaft Herstellungsverfahren für ein Einsteckende
EP2361702A1 (de) 2010-02-22 2011-08-31 HILTI Aktiengesellschaft Herstellungsverfahren für ein Einsteckende
US8468912B2 (en) 2010-02-22 2013-06-25 Hilti Aktiengesellschaft Production method for an insertion end, such as for a drilling, chiseling or boring tool
DE102010031313A1 (de) * 2010-07-14 2012-01-19 Hilti Aktiengesellschaft Meisselwerkzeug, Verfahren zur Herstellung eines Meisselwerkzeugsystems und Handwerkzeugmaschine

Also Published As

Publication number Publication date
EP0357648A1 (de) 1990-03-14
EP0357648B1 (de) 1991-07-31
DE3716915A1 (de) 1988-12-08
US5028057A (en) 1991-07-02
JPH02503533A (ja) 1990-10-25
WO1988009245A1 (fr) 1988-12-01
DE3864023D1 (en) 1991-09-05
JP2663981B2 (ja) 1997-10-15
DE3716915C2 (enExample) 1989-08-17

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