EP1375078A1 - Einsteckende und Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug - Google Patents

Einsteckende und Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug Download PDF

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Publication number
EP1375078A1
EP1375078A1 EP03405418A EP03405418A EP1375078A1 EP 1375078 A1 EP1375078 A1 EP 1375078A1 EP 03405418 A EP03405418 A EP 03405418A EP 03405418 A EP03405418 A EP 03405418A EP 1375078 A1 EP1375078 A1 EP 1375078A1
Authority
EP
European Patent Office
Prior art keywords
guide
axial
end according
insert end
tool
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.)
Withdrawn
Application number
EP03405418A
Other languages
German (de)
English (en)
French (fr)
Inventor
Josef Obermeier
Werner Kleine
Hans-Werner Bongers-Ambrosius
Werner Britten
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP1375078A1 publication Critical patent/EP1375078A1/de
Withdrawn legal-status Critical Current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
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • 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
    • 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
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws

Definitions

  • the invention relates to an insertion end and a tool holder for at least one partially rotating and / or striking tool such as a drill bit, chisel or Cutting drill bit up to 150 mm in diameter for processing stone, concrete or Masonry.
  • a rotating and striking tool has a plug-in end with round Guide areas, axially closed locking grooves and axially open device side Rotary driving grooves, the locking body being radially displaceable Tool holder engage in the locking grooves and the axial mobility of the Limit tool.
  • By machining such grooves into the previously round one The cross-sectional area available for the field transmission is also inserted reduced.
  • US2047125 has an insertion end for a rotating and striking tool several axially offset, radially projecting rotary driving surfaces with rectangular or trapezoidal cross-section.
  • the insertion end for rotating and striking tool for radially engaging locking bodies a tool holder suitable locking groove, two diametrically opposite, radially projecting and diamond-shaped Driving surfaces are available.
  • Such insertion ends have in the transition of round guide areas to the rotary driving surfaces Cross-sectional area, which leads to reflections of a striking load resulting resulting voltage pulse leads and thus the degradation reduced.
  • the machining of such plug-in ends is also time and material-intensive.
  • the cross-sectional area-preserving production is more radially projecting Rotary drive bars, which limit their axial mobility with their axial Contact the end faces with locking bodies in the tool holder by Forming an insertion end with round guide areas previously known.
  • a Locking on the radially outer end faces of the rotary drive bars requires a tool holder that is radially thick relative to the diameter of the insertion end.
  • the pressed-in, acute-angled grooves with a small axial stop surface are suitable not for engaging locking bodies.
  • the object of the invention is to implement an insertion end for a rotating and / or striking tool, which is of a radially thin Tool holder can transmit high torques with low wear as well as a good one Exhibits impulse behavior.
  • Another aspect is the time and material efficient Manufacture of insert ends.
  • an at least partially rotating and / or striking tool an insertion end with at least two axially spaced guide areas, at least a radially projecting rotary drive bar and at least one between the Guide areas arranged, axially closed locking groove in which at least one radially displaceable locking body of a tool holder axially can intervene with limited mobility, with at least one guide area Guide dimension F and an axial area of the locking groove in cross section over the Rotary driving bar has a certain width B and a thickness D perpendicular thereto and it applies: D ⁇ F ⁇ B.
  • the cross-section of radially reinforced width of the rotary driving bar is the same Changes in area at least partially mutually, whereby between the Guide area and the axial area within the locking groove a smaller Cross-sectional change occurs, which is due to a change in the acoustic impedance of the Inserting leads to undesired reflections of the shock pulse wave. Otherwise it is the length and position of the rotary drive bar can be freely selected with regard to the locking groove.
  • the locking groove and the rotary driving bar are advantageously of the same length, the axial region advantageously extending over its entire length, whereby the cross-sectional change along the insertion end is further reduced.
  • the axial area and the guide area advantageously have the same within +/- 10% Cross-sectional area, whereby the axial region of the locking groove essentially preserving cross-sectional area and thus through length-invariant forming processes such as Cold presses can be mass-produced technologically and economically.
  • the locking grooves advantageously have at least one axial end advantageous at both axial ends, at least in part a spherical cap or circular cylindrical axial stop surface for spherical or cylindrical Locking body on, whereby a low-wear flat stop contact is achieved becomes.
  • the maximum determined in the cross section of the axial region is advantageously Opening angle of the bottom surface of the locking groove at least 120 °, which the Axial stop surface for the locking body is sufficiently large.
  • the direction of the tool axis is curved, which means that over the side surfaces of the Forces introduced on the rotary drive bars are subjected to low stress on the tool are transferable.
  • two diagonally opposite functional surfaces are formed uniformly, whereby a symmetrical, essentially rhombic cross-section is formed, on its side surfaces, for example, transverse cylindrical locking bodies can roll on in a line.
  • At least one guide area is advantageous, furthermore both guide areas are advantageous as Circular cylinder jacket formed, which ensures a uniform, axially symmetrical guidance of the tool in the tool holder and thus a good concentricity is achieved. moreover the guide areas are suitable as sealing surfaces.
  • Two, further advantageously diametrical, are advantageous in the axial area of the locking groove Opposite, rotary driving bars arranged, whereby the to be transferred Torque can be introduced from the tool holder without axial bending moments.
  • Two, further advantageously diametrical, are advantageous in the axial area of the locking groove opposing, locking grooves arranged, whereby the locking position in the tool holder always within a half-rotation possible by hand of the tool is assignable.
  • a guide region advantageously has an axial length greater than 5 mm, further advantageously less than 20 mm, optimally 10 mm, which means that with sufficient guidance a short Insertable is realizable.
  • the insertion end advantageously has two circular cylindrical guide regions with 10 mm diameter, with the axial region of the locking groove arranged between them a width of 12 mm determined via the rotary driving bar and a vertical one Has a thickness of 6.5 mm, which in particular hammer drill in the diameter range from 3 mm to 28 mm can be driven with little wear.
  • the insertion end has two circular cylindrical shells Guide areas with a diameter of 10 mm, with the one in between Axial range of the locking groove a width determined by the rotary driving bar 14 mm and a perpendicular thickness of 6.0 mm, which in particular Hammer drills in the diameter range from 12 mm to 40 mm can be driven with little wear are.
  • the insertion end advantageously has two circular cylindrical guide regions with 10 mm diameter, with a first part of the tools of a tool set the axial area of the locking groove has a width determined via the rotary driving bar of 12 mm and a thickness of 6.5 mm perpendicular to it and a second part Has a width of 14 mm and a thickness of 6.0 mm, which means that it is more compact Cross-section with greater thickness / width ratio a one-sided compatibility on the part of the tools of the first part for the tool holder assigned to the second part exists and these tools thus driving different machines Performance classes can be assigned to limit the machine overload can be reduced.
  • a plurality of axial regions which are parallel to one another are advantageously axially offset, are arranged opposite to one another or rotated by an acute angle, thereby creating a more uniform, axial bending stiffness is achieved during rotation.
  • a third guide area between a plurality of axial areas is also advantageous another segment-shaped guide area between the locking grooves is advantageous and the rotary drive bars are arranged, whereby bending vibrations are suppressed and thus the smooth running of the tool is improved.
  • the tool holder assigned to the tool points axially in one of two spaced inner guide surfaces for a guide dimension F, at least one for Center distance smaller F / 2 radially displaceable locking body and at least one too this circumferentially offset rotary transmission means with a center distance greater than F / 2.
  • 1a, 1b and 1c has an insertion end of an at least partially rotating and / or striking tool with at least two axially spaced, substantially Guide regions 1a, 1b, two, which are formed concentrically to the longitudinal axis L of the tool diametrically opposed, radially projecting rotary drive bars 2 and two are the same long, perpendicular to this between the guide areas 1a, 1b arranged, diametrically opposite, axially closed locking grooves 3.
  • both Guide areas 1a, 1b have a radially determined guide dimension F and a Axial area A of the locking grooves 3 in cross section one over the rotary driving bars 2 has a certain width B and a thickness D perpendicular thereto and the following applies: D ⁇ F ⁇ B. 1c, the cut axial region A and the circular cylindrical guide areas 1a, 1b the same with two-fold symmetry Cross-sectional area.
  • the locking grooves 3 have one at both axial ends spherical cap or circular cylindrical axial stop surface 6 for spherical Locking body 4. The maximum determined in the cross section of the axial area A. Opening angle ⁇ of the bottom surface of the locking grooves 3 is 180 °.
  • the functional surfaces 7a, 7b are uniform, diagonal opposite, smoothly passing mathematically in the direction of the tool axis curved. According to FIG. 2b, the functional surfaces 7a, 7b are non-uniform, angular piece by piece smooth, flat partial areas or round grooves put together.
  • two axial areas A, A ' are axially offset from one another acute angle ⁇ rotated by approx. 60 °.
  • the cross section of the axial areas A, A ' is essentially rhomboidal, which means that a transverse, cylindrical, radially displaceable locking body 4 can roll linearly.
  • the thickness / width ratio is one-sided compatibility on the part of the tools of the Variant I for the tool holder assigned to variant II.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
EP03405418A 2002-06-21 2003-06-11 Einsteckende und Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug Withdrawn EP1375078A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10227897A DE10227897A1 (de) 2002-06-21 2002-06-21 Einsteckende und Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug
DE10227897 2002-06-21

Publications (1)

Publication Number Publication Date
EP1375078A1 true EP1375078A1 (de) 2004-01-02

Family

ID=29716597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405418A Withdrawn EP1375078A1 (de) 2002-06-21 2003-06-11 Einsteckende und Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug

Country Status (6)

Country Link
US (1) US7309195B2 (ja)
EP (1) EP1375078A1 (ja)
JP (1) JP4392197B2 (ja)
AU (1) AU2003204636B2 (ja)
CA (1) CA2430516C (ja)
DE (1) DE10227897A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2011607A1 (de) * 2007-07-02 2009-01-07 HILTI Aktiengesellschaft Rührwerkzeug mit Einsteckende
EP1888302A4 (en) * 2005-05-16 2015-05-06 Terminator Ip S A IMPROVED BREAKING MACHINE

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393931A (en) * 2002-10-10 2004-04-14 Black & Decker Inc Tool for a rotary hammer
DE102004054685A1 (de) * 2004-11-12 2006-05-18 Hilti Ag Werkzeugaufnahme
DE102005062777A1 (de) * 2005-12-28 2007-07-05 Robert Bosch Gmbh Schlagbolzen für ein Schlagwerk
DE102006016805A1 (de) * 2006-04-10 2007-10-11 Robert Bosch Gmbh Auswechselbares Rotationswerkzeug für eine Handwerkzeugmaschine
US20130127123A1 (en) * 2010-02-15 2013-05-23 Kabushiki Kaisha Miyanaga Rotation tool installation and removal device and said rotation tool
CN106653163B (zh) * 2016-11-22 2018-08-24 吉林省中赢高科技有限公司 一种异形电缆及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982846A (en) * 1973-12-05 1976-09-28 Steinbach Ralph L Tool device
EP0064735A2 (de) * 1981-05-12 1982-11-17 Gebrüder Heller Gmbh Werkzeugfabrik Mehrbackenfutter und Werkzeug sowie Bohrersatz für das Mehrbackenfutter und Verfahren zum spanlosen Formen mindestens eines Teiles des Werkzeuges
EP0351486A1 (en) * 1988-07-21 1990-01-24 Howard Martin Improved root canal instrument handle
DE19604280A1 (de) * 1996-02-07 1997-08-14 Bosch Gmbh Robert Einsatzsystem für Maschinen mit Bohr- und/oder Schlagbetrieb

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444899C2 (de) * 1974-09-19 1984-08-16 Hilti Ag, Schaan Bohrwerkzeug mit Bohrer und Aufnahmeteil
DE2750219C2 (de) * 1977-11-10 1985-11-21 Friedrich Duss Maschinenfabrik GmbH & Co, 7265 Neubulach Werkzeughalterung für einen Schlag- oder Drehschlaghammer
DE3029560A1 (de) * 1980-08-05 1982-03-11 Friedrich Duss Maschinenfabrik GmbH & Co, 7265 Neubulach Werkzeughalterung an einem schlag- oder drehschlaghammer
DE3042319A1 (de) * 1980-11-10 1982-06-09 Friedrich Duss Maschinenfabrik GmbH & Co, 7265 Neubulach Werkzeughalterung an einem drehschlaghammer
DE3727799A1 (de) * 1987-08-20 1989-03-02 Heller Werkzeug Gmbh Geb Bohrer fuer handbohrmaschinen, schraubbithalter und verfahren zum herstellen dieser werkzeuge
DE3905286C1 (en) * 1989-02-21 1990-05-03 Schmidt, Kranz & Co Gmbh Zweigniederlassung Zorge, 3421 Zorge, De Boring rod for a flush-boring stem
CN1060713C (zh) * 1995-10-12 2001-01-17 罗伯特-博希股份公司 用于具有钻和/或冲击驱动装置的电动机器的插装式工具和工具夹
DE19740277B4 (de) * 1997-09-13 2012-05-24 Robert Bosch Gmbh Bohrwerkzeug
DE10057124A1 (de) * 1999-11-17 2001-05-23 Hawera Probst Gmbh Meißel
MY129180A (en) * 2001-04-27 2007-03-30 Shell Int Research Drilling system with expandable sleeve
DE10257483A1 (de) * 2002-12-10 2004-07-01 Hilti Ag Werkzeugaufnahme für flüssigkeitsgespülte Schlagwerkzeuge
DE10338640A1 (de) * 2003-08-22 2005-03-17 Hilti Ag Einsteckende für ein drehendes und schlagendes Werkzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982846A (en) * 1973-12-05 1976-09-28 Steinbach Ralph L Tool device
EP0064735A2 (de) * 1981-05-12 1982-11-17 Gebrüder Heller Gmbh Werkzeugfabrik Mehrbackenfutter und Werkzeug sowie Bohrersatz für das Mehrbackenfutter und Verfahren zum spanlosen Formen mindestens eines Teiles des Werkzeuges
EP0351486A1 (en) * 1988-07-21 1990-01-24 Howard Martin Improved root canal instrument handle
DE19604280A1 (de) * 1996-02-07 1997-08-14 Bosch Gmbh Robert Einsatzsystem für Maschinen mit Bohr- und/oder Schlagbetrieb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1888302A4 (en) * 2005-05-16 2015-05-06 Terminator Ip S A IMPROVED BREAKING MACHINE
EP2011607A1 (de) * 2007-07-02 2009-01-07 HILTI Aktiengesellschaft Rührwerkzeug mit Einsteckende

Also Published As

Publication number Publication date
CA2430516A1 (en) 2003-12-21
JP4392197B2 (ja) 2009-12-24
AU2003204636A1 (en) 2004-01-22
CA2430516C (en) 2008-04-22
JP2004025439A (ja) 2004-01-29
US20040052596A1 (en) 2004-03-18
DE10227897A1 (de) 2004-01-08
US7309195B2 (en) 2007-12-18
AU2003204636B2 (en) 2008-12-18

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