EP0768151A1 - Porte-outil - Google Patents

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Publication number
EP0768151A1
EP0768151A1 EP96810422A EP96810422A EP0768151A1 EP 0768151 A1 EP0768151 A1 EP 0768151A1 EP 96810422 A EP96810422 A EP 96810422A EP 96810422 A EP96810422 A EP 96810422A EP 0768151 A1 EP0768151 A1 EP 0768151A1
Authority
EP
European Patent Office
Prior art keywords
tool holder
tool
locking elements
locking
locking element
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.)
Granted
Application number
EP96810422A
Other languages
German (de)
English (en)
Other versions
EP0768151B1 (fr
Inventor
Hans-Werner Bongers-Ambrosius
Jörg Eichhorn
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 EP0768151A1 publication Critical patent/EP0768151A1/fr
Application granted granted Critical
Publication of EP0768151B1 publication Critical patent/EP0768151B1/fr
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
    • 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
    • Y10T279/17042—Lost motion
    • Y10T279/17076—Spreading elements
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17811—Reciprocating sleeve
    • 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
    • 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 holder for inserting tools that have at least one axially closed groove, wherein at least one locking element designed as a cylinder for the groove is radially displaceably mounted in a receiving sleeve.
  • a tool holder for hand-held power tools is known, it being possible to use tools in the tool holder which, for example, have two axially closed grooves.
  • the hand-held machine tools that are primarily considered here are predominantly rotary hammers, combination hammers and chisel hammers.
  • these hand-held power tools usually transmit both a turning and a striking movement to the tool used in the tool holder, such as a drill or chisel.
  • the tool holder must therefore be designed such that on the one hand torques can be transmitted to the tool and on the other hand it is ensured that the tool is axially displaceably mounted in the tool holder but cannot fall out of it.
  • the known tool holder has two locking elements, which are designed as cylinders and have an orientation according to which the axis of rotation of the locking elements runs parallel to the main axis of a receiving sleeve.
  • the locking elements can be displaced radially within this receiving sleeve in such a way that they protrude into the grooves provided on the tool in the engaged position.
  • the grooves on the tool also have surfaces which are in contact with the locking elements, so that the torque is transmitted to the tools.
  • the object is achieved in that the locking element, which is designed as a cylinder, is arranged with an axis of rotation which runs essentially transversely to the main axis of the receiving sleeve.
  • the locking element cooperating with the groove in the tool in its engaged position serves both to transmit the torque and also to hold the tool axially, this axial holder permitting limited axial displacement. Since, according to the invention, the axis of rotation of the locking element extends transversely to the direction of displacement of the tool, the locking element rolls off in the manner of a rolling element. Relative displacements between tool and locking element which lead to friction are thereby avoided, which leads to a substantial increase in the service life of both the tool and the tool holder.
  • the length of the locking element is approximately 2 to 3 times its diameter.
  • the ends of the locking elements are preferably dome-like, so that large transmission areas are formed in cooperation with the tool.
  • the dome-like stimuli further reduce wear due to friction.
  • At least two locking elements are preferably provided, wherein if two locking elements are arranged, these can lie essentially diametrically opposite one another.
  • two locking elements there is also the possibility, for example, of providing three locking elements, in which case it makes sense to distribute these three locking elements evenly over the circumference of the receiving sleeve.
  • a tool 1 is inserted into the tool holder, which has two diametrically opposite grooves 2, which are axially closed.
  • the tool holder also has a receiving sleeve 3 which is provided with openings 3a.
  • Locking elements 4 designed as cylinders are mounted radially displaceably within the openings 3a. As the drawing shows, the ends of the locking elements 4 are dome-shaped.
  • the locking elements 4 are in engagement with the grooves 2 of the tool 1. Torque can thus be transmitted from the tool holder to the tool 1, the tool 1 being axially secured due to the axially closed grooves 2 and due to appropriate dimensioning the grooves 2 is also axially displaceable to a limited extent.
  • the length of the respective groove 2 exceeds the diameter of the locking element 4 by a certain amount, which corresponds to the necessary axial movement.
  • the receiving sleeve 3 is surrounded by an actuating sleeve 5, which in turn is surrounded by a cage 6.
  • the actuating sleeve 5 has niches, not shown, which can be brought into projection with the locking elements 4, for example by moving the actuating sleeve 5, so that they are able to evade to the extent that the tool 1 can be removed from the tool holder.
  • a plurality of locking elements 4, which cooperate with one and the same groove 2 can also be provided.
  • the locking elements 4 are arranged one behind the other in a direction running parallel to the main axis of the receiving sleeve 3 and thus allow a transmission of higher torques.
  • the length of the groove 2 is to be dimensioned in accordance with the number of locking elements 4 provided, in such a way that the tool 1 can still perform a sufficient axial movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP96810422A 1995-10-09 1996-06-24 Porte-outil Expired - Lifetime EP0768151B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537561 1995-10-09
DE19537561A DE19537561A1 (de) 1995-10-09 1995-10-09 Werkzeughalter

Publications (2)

Publication Number Publication Date
EP0768151A1 true EP0768151A1 (fr) 1997-04-16
EP0768151B1 EP0768151B1 (fr) 1999-03-10

Family

ID=7774390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810422A Expired - Lifetime EP0768151B1 (fr) 1995-10-09 1996-06-24 Porte-outil

Country Status (6)

Country Link
US (1) US5807040A (fr)
EP (1) EP0768151B1 (fr)
JP (1) JP4025382B2 (fr)
CN (1) CN1068540C (fr)
DE (2) DE19537561A1 (fr)
DK (1) DK0768151T3 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0121947D0 (en) * 2001-09-12 2001-10-31 Black & Decker Inc Tool holder for hammer
US6843484B2 (en) 2002-07-08 2005-01-18 Monte L. Schroeder Quick change chuck
ATE460255T1 (de) * 2003-11-26 2010-03-15 Hilti Ag Werkzeugaufnahme für ein drehendes und schlagendes werkzeug
DE102004054685A1 (de) * 2004-11-12 2006-05-18 Hilti Ag Werkzeugaufnahme
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
US10080579B2 (en) * 2015-03-25 2018-09-25 Medtronic Ps Medical, Inc. Pin drive rotary surgical cutting tools and powered handpieces
US10314610B2 (en) 2015-03-25 2019-06-11 Medtronic Ps Medical, Inc. Slanted drive axis rotary surgical cutting tools and powered handpieces
CN107570774A (zh) * 2017-08-28 2018-01-12 朱炳和 一种柄杆内孔易磨损的镗床铣刀柄
US10849634B2 (en) 2018-06-20 2020-12-01 Medtronic Xomed, Inc. Coupling portion for rotary surgical cutting systems
CN109047803A (zh) * 2018-09-26 2018-12-21 东莞市凯融光学科技有限公司 一种旋转式快速定位刀架盘
US12102369B2 (en) * 2021-05-13 2024-10-01 DePuy Synthes Products, Inc. Surgical impacting tool interfaces
US12582415B2 (en) 2022-11-16 2026-03-24 Medtronic Ps Medical, Inc. Oscillating surgical bone removal tool with fluted cutting head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141659A (en) * 1983-06-20 1985-01-03 Vnii Pk I Mechanizirovannogo Tool retainer for a percussive tool
DE8910822U1 (de) * 1989-09-11 1990-01-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mit der Arbeitsspindel einer handgeführten Elektrowerkzeugmaschine vereinigbarer Adapter
DE9305463U1 (de) * 1993-04-10 1993-06-24 Crones & Co GmbH, 8800 Ansbach Werkzeughalterung an Handschlaggeräten, insbesondere Meißelhämmern
EP0618031A2 (fr) * 1990-05-08 1994-10-05 Robert Bosch Gmbh Perceuse tenue à la main et son porte-outil
DE4341969A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807473A (en) * 1956-02-20 1957-09-24 Alfred J Kiehne Tool mountings and release
US4377292A (en) * 1979-01-09 1983-03-22 The Bendix Corporation Chuck assembly and collet
DE3824894A1 (de) * 1988-07-22 1990-01-25 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
US5013194A (en) * 1988-09-08 1991-05-07 Wienhold James L Chuck assembly for tool bits
US4900202A (en) * 1988-09-08 1990-02-13 Wienhold James L Chuck assembly for tool bits
DE4105414A1 (de) * 1991-02-21 1992-08-27 Hilti Ag Werkzeug und werkzeughalter fuer handwerkzeuggeraete
CN1062315A (zh) * 1991-09-02 1992-07-01 深圳泰克新技术开发公司 钻攻工夹具
DE4200643A1 (de) * 1992-01-13 1993-07-15 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
CN2121299U (zh) * 1992-03-10 1992-11-11 厉永明 快换式钻头夹具
DE4210451A1 (de) * 1992-03-30 1993-10-07 Plica Werkzeugfabrik Ag Mollis Einrichtung zur Drehmomentübertragung
CN2147918Y (zh) * 1992-12-10 1993-12-01 柳州市开关厂职工大学 快换钻攻工夹具
DE4313578A1 (de) * 1993-03-06 1994-09-08 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4340727C2 (de) * 1993-11-30 1996-02-15 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
DE4340728C1 (de) * 1993-11-30 1995-01-26 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
US5398946A (en) * 1993-12-29 1995-03-21 Poly-Tech Industries Chuck having one-step lock and release

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141659A (en) * 1983-06-20 1985-01-03 Vnii Pk I Mechanizirovannogo Tool retainer for a percussive tool
DE8910822U1 (de) * 1989-09-11 1990-01-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mit der Arbeitsspindel einer handgeführten Elektrowerkzeugmaschine vereinigbarer Adapter
EP0618031A2 (fr) * 1990-05-08 1994-10-05 Robert Bosch Gmbh Perceuse tenue à la main et son porte-outil
DE9305463U1 (de) * 1993-04-10 1993-06-24 Crones & Co GmbH, 8800 Ansbach Werkzeughalterung an Handschlaggeräten, insbesondere Meißelhämmern
DE4341969A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Also Published As

Publication number Publication date
EP0768151B1 (fr) 1999-03-10
CN1150073A (zh) 1997-05-21
DE59601412D1 (de) 1999-04-15
JPH09117809A (ja) 1997-05-06
DK0768151T3 (da) 2000-06-05
US5807040A (en) 1998-09-15
CN1068540C (zh) 2001-07-18
JP4025382B2 (ja) 2007-12-19
DE19537561A1 (de) 1997-04-10

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