EP0662370B1 - Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte - Google Patents
Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte Download PDFInfo
- 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
Links
Images
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)
Description
- Fig. 1
- einen Schnitt durch den Einspannschaft eines erfindungsgemässen Werkzeuges;
- Fig. 2
- einen Schnitt durch den Einspannschaft eines weiteren erfindungsgemässen Werkzeuges;
- Fig. 3
- einen Schnitt durch eine vereinfacht dargestellte Werkzeugaufnahme mit dem Einspannschaft eines erfindungsgemässen Werkzeuges entsprechend Fig. 1;
- Fig. 4
- einen Schnitt durch eine vereinfacht dargestellte Werkzeugaufnahme mit dem Einspannschaft eines erfindungsgemässen Werkzeuges entsprechend Fig. 2.
Claims (8)
- Werkzeug zum Einsetzen in eine Werkzeugaufnahme für dem Meisseln und/oder Schlagbohren dienende Handwerkzeuggeräte mit einem Einspannschaft (1, 6), der mindestens eine axial geschlossene Verriegelungsnut (3, 8) und mindestens zwei axial zum freien Ende des Einspannschaftes (1, 6) hin offene Drehmitnahmenuten (2, 7) aufweist, dadurch gekennzeichnet, dass mindestens eine axial zum freien Ende des Einspannschaftes (1, 6) hin offene Längsnut (4, 9) vorgesehen ist, welche derart angeordnet ist, dass sich Längsnut (4, 9) und Verriegelungsnut (3, 8) in ihrer Axialprojektion unter Bildung einer von der rückwärtigen Stimseite des Einspannschaftes (1, 6) abgewandten Schulterfläche (3a, 8a) überlappen und mindestens eine weitere axial geschlossene Verriegelungsnut (5, 10) derart vorgesehen ist, dass sich eine der Drehmitnahmenuten (2, 7) und die weitere Verriegelungsnut (5, 10) unter Bildung einer weiteren, von der rückwärtigen Stimseite des Einspannschaftes (1, 6) abge wandten Schulterfläche (5a, 10a) in ihrer Axialprojektion überlappen.
- Werkzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Längsnut (4, 9) derart angeordnet ist, dass zu den benachbarten Drehmitnahmenuten (2, 7) in Umfangsrichtung ungleiche Abstände bestehen.
- Werkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zwei Längsnuten (4, 9) vorgesehen sind, deren jeweilige Axialprojektion die Axialprojektion von jeweils zwei Verriegelungsnuten (3, 8) unter Bildung von der rückwärtigen Stimseite des Einspannschaftes (1, 6) abgewandten Schulterflächen (3a, 8a) überlappen.
- Werkzeug nach Anspruch 3, dadurch gekennzeichnet, dass die zwei Längsnuten (4, 9), samt den deren Axialprojektion mit ihrer Axialprojektion überlappenden Verriegelungsnuten (3, 8), einander im wesentlichen diametral gegenüberliegend angeordnet sind.
- Werkzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die weitere Verriegelungsnut (5, 10) symmetrisch zur entsprechenden Drehmitnahmenut (2, 7) angeordnet ist.
- Werkzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass zwei weitere Verriegelungsnuten (5, 10) vorgesehen sind, die je eine Drehmitnahmenut (2, 7) unter Bildung von weiteren, von der rückwärtigen Stimseite des Einspannschaftes (1, 6) abgewandten Schulterflächen (5a, 10a) in ihrer Axialprojektion überlappen.
- Werkzeug nach Anspruch 6, dadurch gekennzeichnet, dass die zwei weiteren Verriegelungsnuten (5, 10) einander diametral gegenüberliegen.
- Werkzeugaufnahme mit Aufnahmeöffnung für ein Werkzeug, nach einem der Ansprüche 1 bis 7, gekennzeichnet durch mindestens ein mit den axial geschlossenen Verriegelungsnuten (3, 8) zusammenwirkendes, radial verschiebbares Verriegelungselement (14, 19), mindestens ein mit den weiteren axial geschlossenen Verriegelungsnuten (5, 10) zusammenwirkendes, radial verschiebbares weiteres Verriegelungselement (15, 20), mindestens zwei mit den axial zum freien Ende des Einspannschaftes (1, 6) hin offenen Drehmitnahmenuten (2, 7) zusammenwirkende Mitnahmeleisten (11c, 16c) sowie mindestens eine mit den axial zum freien Ende des Einspannschaftes (1, 6) hin offenen Längsnuten (4, 9) zusammenwirkende Längsleiste (11d, 16d).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4341969 | 1993-12-09 | ||
DE4341969A DE4341969A1 (de) | 1993-12-09 | 1993-12-09 | Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte |
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 (de) |
EP (1) | EP0662370B1 (de) |
JP (1) | JPH07185915A (de) |
CN (1) | CN1070755C (de) |
DE (2) | DE4341969A1 (de) |
DK (1) | DK0662370T3 (de) |
HU (1) | HU216122B (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ287520B6 (en) * | 1994-01-14 | 2000-12-13 | Bosch Gmbh Robert | Mechanism of hand-held cutting device for rotary driving of impact and/or drilling tools, a tool and a tool holder |
DE19537560A1 (de) * | 1995-10-09 | 1997-04-10 | Hilti Ag | Werkzeughalter |
DE19537561A1 (de) * | 1995-10-09 | 1997-04-10 | Hilti Ag | Werkzeughalter |
DE69938838D1 (de) * | 1998-11-12 | 2008-07-10 | Black & Decker Inc | Futter, bohrer, zusammenbau dafür und montagemethode |
EP1769868B1 (de) * | 1998-11-12 | 2012-08-01 | Black & Decker, Inc. | Futter und Zusammenbauverfahren dafür |
US6474656B1 (en) * | 1999-07-21 | 2002-11-05 | Black & Decker Inc. | Power drivable chuck |
ATE460255T1 (de) * | 2003-11-26 | 2010-03-15 | Hilti Ag | 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7536182U (de) * | 1975-11-14 | 1978-02-02 | Robert Bosch Gmbh, 7000 Stuttgart | 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 |
-
1993
- 1993-12-09 DE DE4341969A patent/DE4341969A1/de not_active Withdrawn
-
1994
- 1994-11-10 DK DK94810646T patent/DK0662370T3/da active
- 1994-11-10 DE DE59405955T patent/DE59405955D1/de not_active Expired - Lifetime
- 1994-11-10 EP EP94810646A patent/EP0662370B1/de not_active Expired - Lifetime
- 1994-12-07 HU HUP9403507A patent/HU216122B/hu not_active IP Right Cessation
- 1994-12-08 CN CN94112911A patent/CN1070755C/zh not_active Expired - Fee Related
- 1994-12-09 US US08/353,574 patent/US5518345A/en not_active Expired - Lifetime
- 1994-12-09 JP JP6306435A patent/JPH07185915A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN1112868A (zh) | 1995-12-06 |
DK0662370T3 (da) | 1999-02-15 |
US5518345A (en) | 1996-05-21 |
JPH07185915A (ja) | 1995-07-25 |
HUT69863A (en) | 1995-09-28 |
DE4341969A1 (de) | 1995-06-14 |
HU216122B (hu) | 1999-04-28 |
DE59405955D1 (de) | 1998-06-18 |
EP0662370A1 (de) | 1995-07-12 |
CN1070755C (zh) | 2001-09-12 |
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