EP0662370B1 - Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte - Google Patents

Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte Download PDF

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Publication number
EP0662370B1
EP0662370B1 EP94810646A EP94810646A EP0662370B1 EP 0662370 B1 EP0662370 B1 EP 0662370B1 EP 94810646 A EP94810646 A EP 94810646A EP 94810646 A EP94810646 A EP 94810646A EP 0662370 B1 EP0662370 B1 EP 0662370B1
Authority
EP
European Patent Office
Prior art keywords
grooves
clamping shaft
locking
tool
groove
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
EP94810646A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0662370A1 (de
Inventor
Josef Obermeier
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 EP0662370A1 publication Critical patent/EP0662370A1/de
Application granted granted Critical
Publication of EP0662370B1 publication Critical patent/EP0662370B1/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
    • B25D2217/003—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
    • Y10T279/17042—Lost motion
    • 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 a tool for insertion into a tool holder for the Chisels and / or impact drilling hand tools with a clamping shank, the at least one axially closed locking groove and at least two Has axially open rotational driving grooves to the free end of the clamping shaft.
  • the Clamping shank of these tools one or two axially closed locking grooves and one or two axially open to the free end of the clamping shaft Has rotary driving grooves.
  • the tool holder which is the holder of this Tools, has one or two radially displaceable locking elements, which can be in the form of balls or rollers.
  • the locking elements serve in cooperation with the axially closed Locking grooves of the axial holder of the tools in the tool holder.
  • this axial holder serves to secure the tools from falling out and on the other hand, the tools in the tool holder in the axial direction so that the tools are pulled out of a hole in the components can be.
  • Considerable stresses in the axial direction then occur at most on when a jammed drill is pulled out of a hole in a component must become. Since this problem occurs only occasionally, the aspect of sufficient So far little attention has been paid to axial locking when designing the tools donated.
  • the invention has for its object to provide a tool with which Interaction with a suitably trained tool holder both larger Torques and larger axial forces can be transmitted without doing so the cross section of the clamping shaft is significantly weakened.
  • two longitudinal grooves are provided, the respective axial projection of which Axial projection of two locking grooves each, forming the rear Overlap shoulder surfaces facing away from the face.
  • This will be the one for torque transmission decisive total attack surface is increased without the Cross-section of the clamping shank further weaken or the guidance of the tool revealing serving, decisive surface parts of the clamping shank.
  • each a rotary driving groove with formation of further, from the rear face of the Overlap the shoulder surfaces facing away from the shoulder surfaces in their axial projection.
  • the tool designed in the manner mentioned above has the advantage that it is in a conventional tool holder, for example according to DE-PS 25 51 125.
  • it can also be found in the other Use existing tool holders, such as those Tool holders, the opposite two locking elements or also diametrically opposite a locking element and one Have a carrier bar.
  • Advantages according to the invention are not yet fully expressed.
  • Locking elements There is preferably one or two locking elements, one or two more Locking elements as well as one or two longitudinal strips application.
  • the tool according to Fig. 1 has a clamping shank 1, the two with each other diametrically opposite, axially towards the free end of the clamping shaft 1 open rotary driving grooves 2 and two diametrically opposite, axially closed locking grooves 3 is provided.
  • the axially closed locking grooves 3 are penetrated by longitudinal grooves 4, with longitudinal grooves 4 and locking grooves 3 overlap in such a way that it extends from the rear end of the clamping shaft 1 form shoulder surfaces 3a facing away.
  • Another is axial closed locking groove 5 is provided such that one of the rotary driving grooves 2 and the further locking groove 5, forming another from the rear Overlap the face of the clamping shaft 1 facing away from the shoulder surface 5a. Due to the symmetrical arrangement of the rotary driving groove 2 and another locking groove 5, the further shoulder surface 5a is divided into two subareas of practically the same size.
  • the simplified tool holder shown in FIG. 3 consists of a Guide 11, an actuating sleeve 12 and a cage 13.
  • a Guide 11 In an exemplary manner are two locking elements radially displaceable in openings 11a of the guide 11 14 provided.
  • Another locking element is also by way of example 15 provided which is radial in an opening 11b of the guide 11 is slidably mounted.
  • the guide 11 also has two diametrically opposite one another Driving bars 11c and two diametrically opposite one another Longitudinal strips 11d.
  • the tool holder according to FIG. 4 in turn has a guide 16, a locking sleeve 17 and a cage 18.
  • a guide 16a of the guide 16 two locking elements 19 designed as balls radially slidably mounted.
  • two are also in openings 16b of the guide 16 formed as balls further locking elements 20 mounted radially.
  • the guide 16 also has two diametrically opposite one another Driving bars 16c and two diametrically opposite one another Longitudinal strips 16d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Clamps And Clips (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
EP94810646A 1993-12-09 1994-11-10 Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte Expired - Lifetime EP0662370B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341969A DE4341969A1 (de) 1993-12-09 1993-12-09 Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4341969 1993-12-09

Publications (2)

Publication Number Publication Date
EP0662370A1 EP0662370A1 (de) 1995-07-12
EP0662370B1 true EP0662370B1 (de) 1998-05-13

Family

ID=6504556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810646A Expired - Lifetime EP0662370B1 (de) 1993-12-09 1994-11-10 Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Country Status (7)

Country Link
US (1) US5518345A (da)
EP (1) EP0662370B1 (da)
JP (1) JPH07185915A (da)
CN (1) CN1070755C (da)
DE (2) DE4341969A1 (da)
DK (1) DK0662370T3 (da)
HU (1) HU216122B (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE199672T1 (de) * 1994-01-14 2001-03-15 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmitnahme von werkzeugen
DE19537561A1 (de) * 1995-10-09 1997-04-10 Hilti Ag Werkzeughalter
DE19537560A1 (de) * 1995-10-09 1997-04-10 Hilti Ag Werkzeughalter
CN1149132C (zh) * 1998-11-12 2004-05-12 布莱克-德克尔公司 卡盘、钻头、其组件及安装方法
EP1775046A3 (en) * 1998-11-12 2008-06-04 Black & Decker, Inc. Chuck,bit,assembly thereof and methods of mounting
CN1331628C (zh) * 1999-07-21 2007-08-15 布莱克-德克尔公司 动力驱动夹头
EP1535704B1 (de) * 2003-11-26 2010-03-10 HILTI Aktiengesellschaft Werkzeugaufnahme für ein drehendes und schlagendes Werkzeug
US20130127123A1 (en) * 2010-02-15 2013-05-23 Kabushiki Kaisha Miyanaga Rotation tool installation and removal device and said rotation tool
EP2845687A1 (de) * 2013-09-04 2015-03-11 HILTI Aktiengesellschaft Handwerkzeugmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551125A1 (de) * 1975-11-14 1977-05-26 Bosch Gmbh Robert Einrichtung zur drehmomentuebertragung
DE3429419A1 (de) * 1984-08-09 1986-02-20 Hilti Ag, Schaan Bohrwerkzeug fuer handbohrmaschinen
DE3539654C2 (de) * 1985-03-20 1994-02-10 Roehm Gmbh Bohrfutter und Werkzeug zum drehenden und drehschlagenden Bohren
FR2635039B1 (fr) * 1988-08-05 1990-11-02 Prospection & Inventions Foret comprenant une queue avec des rainures
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Also Published As

Publication number Publication date
DE59405955D1 (de) 1998-06-18
CN1070755C (zh) 2001-09-12
HU216122B (hu) 1999-04-28
US5518345A (en) 1996-05-21
DE4341969A1 (de) 1995-06-14
EP0662370A1 (de) 1995-07-12
DK0662370T3 (da) 1999-02-15
HUT69863A (en) 1995-09-28
CN1112868A (zh) 1995-12-06
JPH07185915A (ja) 1995-07-25

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