EP0500489B1 - Werkzeug und Werkzeughalter für Handwerkzeuggeräte - Google Patents

Werkzeug und Werkzeughalter für Handwerkzeuggeräte Download PDF

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Publication number
EP0500489B1
EP0500489B1 EP92810040A EP92810040A EP0500489B1 EP 0500489 B1 EP0500489 B1 EP 0500489B1 EP 92810040 A EP92810040 A EP 92810040A EP 92810040 A EP92810040 A EP 92810040A EP 0500489 B1 EP0500489 B1 EP 0500489B1
Authority
EP
European Patent Office
Prior art keywords
tool
tool shank
shank
rotary driving
rotary
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
EP92810040A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0500489A2 (de
EP0500489A3 (en
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 EP0500489A2 publication Critical patent/EP0500489A2/de
Publication of EP0500489A3 publication Critical patent/EP0500489A3/de
Application granted granted Critical
Publication of EP0500489B1 publication Critical patent/EP0500489B1/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
    • 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
    • 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
    • Y10T279/17085—Key retainer
    • 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 handheld power tools, the tool shaft having two diametrically opposite rotary driving grooves which open out towards the end, and wherein the tool shaft has two diametrically opposed, mutually closed recesses and a tool holder for such a tool.
  • the novelty according to the invention is that the rotary driving groove with the larger radian measure has a symmetrically arranged depression which extends along the rotating driving groove.
  • the invention has for its object to provide a tool and a tool holder, between these two parts sufficiently high torques can be transmitted and on the other hand, no weakening of the tool shank is caused.
  • the object is achieved in that the diametrically opposed rotary driving grooves of the tool have a different arc dimension.
  • the tools with a dimensioning of rotary driving grooves according to the present invention are also suitable for being used in tool holders of devices of a conventional type.
  • a tool according to the invention When a tool according to the invention is inserted into such previously known and very widely used tool holders on the market, only the rotary driver which engages in the rotary driving groove with the smaller arc dimension transmits the torque. This is completely sufficient, since this is a conventional, significantly lower torque on the tool-generating device generation.
  • rotary driver grooves have an advantageous effect, in which the larger curve dimension corresponds to 1.5 to 2.5 times the smaller curve dimension.
  • the smaller radian measure essentially corresponds to the size of the tools known hitherto, that is to say it is approximately 0.2 to 0.3 times the diameter of the tool shank.
  • the minimization of the cross-sectional weakening has a further advantageous effect if the base of the rotary driving groove with the larger arc dimension is arcuate, this arc lying on a radius to the axis of rotation of the tool.
  • This adjustment of the groove depth enables the tool according to the invention to be used in conventional tool holders.
  • a recess is advantageously provided which corresponds to the depth of the rotary driving groove with a smaller curved dimension and is adapted in length to the two rotary driving grooves. Thanks to this measure, the use of the tool according to the invention in tool holders of conventional devices is also made possible.
  • the width at the base of the depression corresponding to the width at the base of the rotary drive is preferably designed with a smaller radian measure.
  • the bottom of the depression expediently runs tangentially.
  • the rotary drivers preferably have a different arc dimension on a tool holder with strip-shaped rotary drivers and at least one radially displaceable locking body. This also ensures that tools for conventional tool holders cannot be inserted into the tool holder according to the present invention. It is therefore impossible for such tools known up to now and not designed for the transmission of excessively high torques to be damaged by excessive stress.
  • a simplified tool holder can be seen in cross section from FIG. 1, with a guide 1, an actuating sleeve 2, a cage 3 and locking bodies 4 in the form of rollers.
  • the guide In order to transmit the torque from the tool holder to the tool, the guide has 1 rotary driver 6, 7. These rotary drivers 6, 7 with different radians engage in rotary driver grooves 9, 10 on the tool shank 8.
  • the actuating sleeve 2 is displaced, ie either rotated or axially displaced, which leads to the fact that, for reasons of simplification, alternative niches come to lie flush with the locking bodies 4, so that the locking bodies 4 so far can be disengaged from the recesses 11, 12 that the tool shank 8 of the tool is released.
  • FIG. 2 and 3 show the tool corresponding to FIG. 1, the tool shank 8 of which has rotary driving grooves 9, 10 and recesses 11, 12 which are closed on both sides.
  • the rotary driving groove 9 has a larger radian measure than the rotating driving groove 10.
  • FIG. 2 shows how the recesses 11, 12 each have a chamfer 11a, 12a in order to facilitate the entry of the locking bodies 4 into the recesses 11, 12.
  • FIGS. 4 and 5 Another tool is shown in FIGS. 4 and 5.
  • the tool shaft 13 of this further tool again has rotary driving grooves 14, 15 and recesses 16, 17 which are closed on both sides.
  • the rotary driving groove 14 with the larger radian also has a recess 18 symmetrically, the width of which corresponds to the bottom of the width of the rotary driving groove 15 with a smaller radian on the bottom.
  • the recesses 16, 17 have a chamfer 16a, 17a for the same purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Jigs For Machine Tools (AREA)
  • Drilling Tools (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Gear Transmission (AREA)
  • Manipulator (AREA)
  • Knives (AREA)
  • Milling Processes (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Sawing (AREA)
EP92810040A 1991-02-21 1992-01-22 Werkzeug und Werkzeughalter für Handwerkzeuggeräte Expired - Lifetime EP0500489B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105414A DE4105414A1 (de) 1991-02-21 1991-02-21 Werkzeug und werkzeughalter fuer handwerkzeuggeraete
DE4105414 1991-02-21

Publications (3)

Publication Number Publication Date
EP0500489A2 EP0500489A2 (de) 1992-08-26
EP0500489A3 EP0500489A3 (en) 1993-04-14
EP0500489B1 true EP0500489B1 (de) 1995-08-23

Family

ID=6425565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810040A Expired - Lifetime EP0500489B1 (de) 1991-02-21 1992-01-22 Werkzeug und Werkzeughalter für Handwerkzeuggeräte

Country Status (21)

Country Link
US (1) US5174698A (hu)
EP (1) EP0500489B1 (hu)
JP (1) JP3442796B2 (hu)
KR (1) KR0174731B1 (hu)
CN (1) CN1027876C (hu)
AT (1) ATE126748T1 (hu)
AU (1) AU644266B2 (hu)
CA (1) CA2061591C (hu)
CZ (1) CZ279493B6 (hu)
DE (2) DE4105414A1 (hu)
DK (1) DK0500489T3 (hu)
ES (1) ES2075669T3 (hu)
FI (1) FI98607C (hu)
GR (1) GR3017341T3 (hu)
HU (1) HU209800B (hu)
MX (1) MX9200708A (hu)
NO (1) NO176701C (hu)
PL (1) PL167458B1 (hu)
SK (1) SK279415B6 (hu)
YU (1) YU13092A (hu)
ZA (1) ZA921136B (hu)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563727A1 (de) * 1992-03-30 1993-10-06 Plica Werkzeugfabrik Ag Einrichtung zur Drehmomentübertragung
EP0955131A1 (de) 1998-05-04 1999-11-10 HILTI Aktiengesellschaft Werkzeug für Handwerkzeugmaschinen

Families Citing this family (27)

* 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
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
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4223517A1 (de) * 1992-07-17 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
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
DE4402802C2 (de) * 1994-01-31 2003-01-30 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE19507567A1 (de) * 1995-03-03 1996-09-05 Drebo Werkzeugfab Gmbh Bohrer
JPH0911155A (ja) * 1995-06-23 1997-01-14 Hitachi Koki Co Ltd 衝撃工具の工具保持装置
DE19537561A1 (de) * 1995-10-09 1997-04-10 Hilti Ag Werkzeughalter
AUPP053097A0 (en) * 1997-11-26 1997-12-18 Ramset Fasteners (Aust.) Pty. Limited Drill bits and holders therefor
WO2000027574A1 (en) 1998-11-12 2000-05-18 Black & Decker Inc. Chuck, bit, assembly thereof and methods of mounting
DE10338640A1 (de) * 2003-08-22 2005-03-17 Hilti Ag Einsteckende für ein drehendes und schlagendes Werkzeug
JP2006007339A (ja) * 2004-06-23 2006-01-12 Senho Kogyo Kofun Yugenkoshi チャック
DE102004054685A1 (de) * 2004-11-12 2006-05-18 Hilti Ag Werkzeugaufnahme
DE102007048821A1 (de) * 2007-10-10 2009-04-16 Robert Bosch Gmbh Werkzeugsystem
SE533660C2 (sv) * 2009-03-27 2010-11-23 Seco Tools Ab Skärspets innefattande ett spårförsett skaft och skärverktyg innefattande en sådan skärspets
US9089955B2 (en) 2009-06-09 2015-07-28 Baseline Redefined, Llc Locking mechanism and tool device
US8430003B1 (en) 2009-06-09 2013-04-30 Robyn Marie Johnson High density tool and locking system
CH701136B1 (de) * 2009-06-26 2013-09-30 Rego Fix Ag Spannsystem.
CN105312635A (zh) * 2014-08-01 2016-02-10 王吉会 直柄防滑钻头和通用型防滑钻头及其防滑方法
SE540445C2 (sv) * 2016-04-29 2018-09-18 Kapman Ab Hållare för ett roterande verktyg, exempelvis en hålsåg
CN111643175B (zh) * 2020-04-29 2021-07-02 天衍医疗器材有限公司 一种适配不同动力工具的动力接头装置
US11878406B2 (en) 2020-07-22 2024-01-23 Royal Machine Solutions Inc. Holder for a bit of a tool
US20220219306A1 (en) * 2021-01-14 2022-07-14 Milwaukee Electric Tool Corporation Tool bit

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551125C2 (de) * 1975-11-14 1987-04-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung
DE2618596C2 (de) * 1976-04-28 1984-05-17 Robert Bosch Gmbh, 7000 Stuttgart Werkzeughalter
DE2650134A1 (de) * 1976-10-30 1978-05-11 Bosch Gmbh Robert Werkzeugeinsteckschaft
DE2811328C2 (de) * 1978-03-16 1986-09-25 Robert Bosch Gmbh, 7000 Stuttgart Bohrfutter
DK333581A (da) * 1981-07-24 1983-01-25 Duforac Kartro A S Vaerktoejsskaft isaer til slag eller hammerbor
DE3413432A1 (de) * 1983-12-27 1985-07-04 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Bohrer fuer handbohrmaschinen
GB8425400D0 (en) * 1984-10-08 1984-11-14 Dom Holdings Plc Tool
DE3539912A1 (de) * 1985-11-11 1987-05-14 Hilti Ag Werkzeughalter fuer bohr- und meisselwerkzeuge
DE3716915A1 (de) * 1987-05-20 1988-12-08 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
DE3717614A1 (de) * 1987-05-25 1988-12-15 Hilti Ag Werkzeughalter fuer werkzeuge
DE3824894A1 (de) * 1988-07-22 1990-01-25 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung
FR2635039B1 (fr) * 1988-08-05 1990-11-02 Prospection & Inventions Foret comprenant une queue avec des rainures
DE3941646A1 (de) * 1989-12-16 1991-06-20 Heller Werkzeug Gmbh Geb Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE9013190U1 (de) * 1990-09-17 1992-01-23 Drebo Werkzeugfabrik GmbH, 7963 Altshausen Bohrer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563727A1 (de) * 1992-03-30 1993-10-06 Plica Werkzeugfabrik Ag Einrichtung zur Drehmomentübertragung
EP0955131A1 (de) 1998-05-04 1999-11-10 HILTI Aktiengesellschaft Werkzeug für Handwerkzeugmaschinen

Also Published As

Publication number Publication date
DK0500489T3 (da) 1996-01-02
SK279415B6 (sk) 1998-11-04
PL293533A1 (en) 1992-11-02
US5174698A (en) 1992-12-29
FI920729A (fi) 1992-08-22
DE59203327D1 (de) 1995-09-28
CS49592A3 (en) 1992-09-16
EP0500489A2 (de) 1992-08-26
NO176701C (no) 1995-05-16
ZA921136B (en) 1992-11-25
DE4105414A1 (de) 1992-08-27
CA2061591C (en) 2002-04-16
ATE126748T1 (de) 1995-09-15
JP3442796B2 (ja) 2003-09-02
CN1027876C (zh) 1995-03-15
HUT60182A (en) 1992-08-28
FI920729A0 (fi) 1992-02-20
CN1064232A (zh) 1992-09-09
KR920016195A (ko) 1992-09-24
NO920683D0 (no) 1992-02-20
ES2075669T3 (es) 1995-10-01
AU1102792A (en) 1992-08-27
JPH04322905A (ja) 1992-11-12
AU644266B2 (en) 1993-12-02
GR3017341T3 (en) 1995-12-31
KR0174731B1 (ko) 1999-02-18
PL167458B1 (pl) 1995-09-30
CZ279493B6 (cs) 1995-05-17
FI98607B (fi) 1997-04-15
NO920683L (no) 1992-08-24
EP0500489A3 (en) 1993-04-14
MX9200708A (es) 1992-09-01
HU209800B (en) 1994-11-28
CA2061591A1 (en) 1992-08-22
HU9200551D0 (en) 1992-05-28
YU13092A (sh) 1995-10-03
FI98607C (fi) 1997-07-25
NO176701B (no) 1995-02-06

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