EP0739266B1 - Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen - Google Patents

Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen Download PDF

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Publication number
EP0739266B1
EP0739266B1 EP95903257A EP95903257A EP0739266B1 EP 0739266 B1 EP0739266 B1 EP 0739266B1 EP 95903257 A EP95903257 A EP 95903257A EP 95903257 A EP95903257 A EP 95903257A EP 0739266 B1 EP0739266 B1 EP 0739266B1
Authority
EP
European Patent Office
Prior art keywords
rotary
tool
longitudinal side
shank
periphery
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
EP95903257A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0739266A1 (de
Inventor
Horst Wierspecker
Heinz Neubert
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
Publication of EP0739266A1 publication Critical patent/EP0739266A1/de
Application granted granted Critical
Publication of EP0739266B1 publication Critical patent/EP0739266B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B25D2217/0038—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
    • B25D2217/0049—Roll-shaped locking members
    • 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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank

Definitions

  • the invention is based on a device Hand machine tools for the rotary driving of striking and / or drilling tools according to the preamble of claim 1 as well as a tool and tool holder used.
  • DE 42 11 533 A1 also describes a tendon-shaped recess known on the tool shank, which one essentially opposite trapezoidal groove for rotary driving.
  • the tendon-shaped recess serves to improve the Compatibility by having such a trained tool shank in Hand tool devices with different width rotary drive bars can be used on your tool holder.
  • the turning takes place here, however, very one-sided, almost exclusively on the in Drive driving flank of the opposite groove because the locking body of the Tool holder in the locking recesses assigned to them on Tool shaft only absorb a small torque.
  • the invention Device with the characterizing features of the claim 1, wherein apart from the at least two at least one another about opposite filming takes another filming with a tendon-shaped outlet on at least one long side the tool shank or the tool holder in that Is arranged circumferential area of the axial locking is at least approximately opposite.
  • This solution can be used in advantageously the wear reserve for the tool holder increase and the notch effect on the tool shank through the flat Reduce or avoid turning in this area.
  • Another advantage is that when clamping such Tools e.g. in the borehole, this also with maximum load in Reverse gear with an abruptly responding overload clutch operate.
  • FIG. 1 shows a tool holder Drill hammer with inserted tool in cross section in enlarged view
  • Figure 2 shows a longitudinal section through the front end of the tool holder according to II-II of Figure 1
  • Figure 3 shows the tool shank.
  • the device according to the invention on machine tools Rotary driving of striking and / or drilling tools, especially on impact drills and hammer drills or Impact devices essentially consist of one in the direction of the arrow drivable tool holder 10 and one inserted therein Tool shank 11 one used for drilling and / or hitting Tool 12.
  • a cross section through such a device shows Figure 1 as the first exemplary embodiment in connection with Figures 2 and 3.
  • the cylindrical one Locking body 15 is spherical at its axial ends rounded.
  • the locking trough 16 is designed as a groove and ends before the rear end of the tool shank 11 with a corresponding spherical curvature.
  • a third take-away is in the Axial locking opposite area.
  • This take-away is designed such that there the tool shank 11 is axially Tendon-shaped recess 21 which runs to the end of the shaft (Flat or section) and the tool holder 10 in corresponding circumferential area of the receiving bore 13 an axially extending tendon-shaped projection 22.
  • This take-away does not have a radial flank like the other two rotary drives for torque transmission but a much larger area through the chord-shaped outlet to the circumference of the tool shank 11 or to the receiving bore 13 of the tool holder 10. Thereby becomes the surface pressure in this area and as a result the wear is reduced, which in particular also affects the radial driving flanks of the other two turning drivers has a positive effect.
  • a tool holder 10 according to Figure 4 and a tool holder 10 of Figure 5 are from Figures 1 to 3 for the same parts same reference numbers are used.
  • the axial locking opposite third rotary drive consisting of the Recess 21 on the tool shank 11 and the projection 22 on Tool holder 10 in the drive direction according to the arrow with a radially extending flank 21a, 22a provided exclusively for torque transmission in the drive direction.
  • the the back flank of this rotary drive runs as in the first embodiment chord-shaped to the extent of Tool shank 11 or for receiving bore 13 of the Tool holder 10 to dangerous left-turning Angular impulses, especially when working with chisels fixed tool holder.
  • the invention is not shown on the Embodiments limited because in particular the number and the shape of individual, not the axial locking opposite rotary driving can be freely selected.
  • the tendon-shaped rotary drive in the Axial locking opposite area also for Improve compatibility between tool shank and Tool holder can be used with, for example, the Tool shank 11 in the exemplary embodiment according to FIG Tool holder with a dashed line in Figure 1 third rotary drive bar 22c instead of the projection 22 or in a tool holder 10 according to Figure 5 is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Toys (AREA)
  • Manipulator (AREA)
  • Gripping On Spindles (AREA)
EP95903257A 1994-01-14 1994-12-24 Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen Expired - Lifetime EP0739266B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4400969 1994-01-14
DE4400969A DE4400969A1 (de) 1994-01-14 1994-01-14 Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
PCT/DE1994/001534 WO1995019243A1 (de) 1994-01-14 1994-12-24 Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen

Publications (2)

Publication Number Publication Date
EP0739266A1 EP0739266A1 (de) 1996-10-30
EP0739266B1 true EP0739266B1 (de) 1999-10-06

Family

ID=6507946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903257A Expired - Lifetime EP0739266B1 (de) 1994-01-14 1994-12-24 Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen

Country Status (19)

Country Link
US (1) US5868209A (da)
EP (1) EP0739266B1 (da)
JP (1) JPH09507437A (da)
KR (1) KR100402191B1 (da)
CN (1) CN1069569C (da)
AT (1) ATE185307T1 (da)
AU (1) AU677490B2 (da)
BR (1) BR9408484A (da)
CA (1) CA2181181C (da)
CZ (1) CZ287627B6 (da)
DE (2) DE4400969A1 (da)
DK (1) DK0739266T3 (da)
ES (1) ES2138184T3 (da)
FI (1) FI107318B (da)
RU (1) RU2141395C1 (da)
SK (1) SK283414B6 (da)
TW (1) TW252067B (da)
WO (1) WO1995019243A1 (da)
ZA (1) ZA95274B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107225273A (zh) * 2016-03-23 2017-10-03 江苏天工工具有限公司 一种防断裂高速钢直柄麻花钻

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SK283037B6 (sk) * 1994-01-14 2003-02-04 Robert Bosch Gmbh Ručné obrábacie zariadenie s ústrojenstvom na otáčavé unášanie nárazových a/alebo vŕtacích nástrojov, nástroj a držiak nástroja
AUPP053097A0 (en) * 1997-11-26 1997-12-18 Ramset Fasteners (Aust.) Pty. Limited Drill bits and holders therefor
AU742424B2 (en) * 1997-11-26 2002-01-03 Illinois Tool Works Inc. Drill bits and holders therefor
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
US6834864B2 (en) * 2001-10-24 2004-12-28 Power Tool Holders Incorporated Chuck having quick change mechanism
DE20204416U1 (de) * 2002-03-19 2002-07-11 Gebrüder Heller Dinklage GmbH, 49413 Dinklage Werkzeug für eine Handwerkzeugmaschine
DE102004026850A1 (de) * 2004-06-02 2005-12-29 Hilti Ag Einsteckende für ein drehendes und/oder schlagendes Werkzeug
DE102004054685A1 (de) * 2004-11-12 2006-05-18 Hilti Ag Werkzeugaufnahme
WO2010101621A1 (en) 2009-03-02 2010-09-10 Seventh Sense Biosystems, Inc. Devices and methods for the analysis of an extractable medium
US8668411B2 (en) * 2009-09-16 2014-03-11 Iscar, Ltd. Cutting tool and holder
IL200980A0 (en) * 2009-09-16 2010-05-17 Iscar Ltd Cutting tool and holder
CN106112847B (zh) * 2016-06-24 2018-03-06 相城区黄桥荣翔金属制品厂 一种定位工装

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811677A1 (de) * 1978-03-17 1979-09-20 Westa Werkzeugbau Einrichtung zur aufnahme eines gesteinsbohrers im bohrfutter einer drehschlagbohrmaschine
GB8425400D0 (en) * 1984-10-08 1984-11-14 Dom Holdings Plc Tool
DE3716915A1 (de) * 1987-05-20 1988-12-08 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
DE3941646A1 (de) * 1989-12-16 1991-06-20 Heller Werkzeug Gmbh Geb Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
SU1747260A1 (ru) * 1989-12-20 1992-07-15 Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам Устройство креплени рабочего инструмента
SU1763169A1 (ru) * 1990-05-21 1992-09-23 В.А.Алексеев Машина ударного действи
JP3372251B2 (ja) * 1990-10-16 2003-01-27 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 手持ち式工作機械に付属の装置
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
DE4211533A1 (de) * 1992-04-06 1993-10-07 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4313578A1 (de) * 1993-03-06 1994-09-08 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4313580A1 (de) * 1993-04-26 1994-10-27 Hilti Ag Werkzeugeinspannschaft
DE4341970A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
SK283037B6 (sk) * 1994-01-14 2003-02-04 Robert Bosch Gmbh Ručné obrábacie zariadenie s ústrojenstvom na otáčavé unášanie nárazových a/alebo vŕtacích nástrojov, nástroj a držiak nástroja

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107225273A (zh) * 2016-03-23 2017-10-03 江苏天工工具有限公司 一种防断裂高速钢直柄麻花钻

Also Published As

Publication number Publication date
CA2181181C (en) 2000-10-03
FI962842A0 (fi) 1996-07-12
CZ200796A3 (en) 1997-02-12
CN1141607A (zh) 1997-01-29
US5868209A (en) 1999-02-09
FI962842L (fi) 1996-07-12
DE4400969A1 (de) 1995-07-20
SK89896A3 (en) 1997-09-10
BR9408484A (pt) 1997-08-26
ZA95274B (en) 1995-09-21
KR100402191B1 (ko) 2004-03-26
CZ287627B6 (en) 2001-01-17
EP0739266A1 (de) 1996-10-30
ATE185307T1 (de) 1999-10-15
ES2138184T3 (es) 2000-01-01
DE59408808D1 (de) 1999-11-11
AU677490B2 (en) 1997-04-24
WO1995019243A1 (de) 1995-07-20
RU2141395C1 (ru) 1999-11-20
DK0739266T3 (da) 2000-04-03
FI107318B (fi) 2001-07-13
CN1069569C (zh) 2001-08-15
CA2181181A1 (en) 1995-07-20
AU1218795A (en) 1995-08-01
JPH09507437A (ja) 1997-07-29
TW252067B (da) 1995-07-21
SK283414B6 (sk) 2003-07-01

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