EP0433876B1 - Tool for percussive drilling and tool retainer for percussive drilling tools - Google Patents
Tool for percussive drilling and tool retainer for percussive drilling tools Download PDFInfo
- Publication number
- EP0433876B1 EP0433876B1 EP19900124024 EP90124024A EP0433876B1 EP 0433876 B1 EP0433876 B1 EP 0433876B1 EP 19900124024 EP19900124024 EP 19900124024 EP 90124024 A EP90124024 A EP 90124024A EP 0433876 B1 EP0433876 B1 EP 0433876B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- rotary
- grooves
- locking
- rotary pickup
- 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
- 238000005553 drilling Methods 0.000 title claims description 5
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000009527 percussion Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
Definitions
- the invention relates to a tool with a clamping shaft, which is provided for insertion into a tool holder of a handheld power tool intended for percussion drilling with at least two diametrically opposed rotary driving grooves, which open into the end face of the clamping shaft for the axial insertion of rotary drivers of the tool holder, and the at least has a locking recess, which is closed for receiving a locking body of the tool holder at least at its end adjacent to the end face of the clamping shank to limit axial mobility of the locked tool.
- Tools of this type are known for example from DE-PS 25 51 125.
- the invention has for its object to design tools of this type so that they can only be inserted into a tool holder in a very specific angular position.
- a tool is known from WO 88/09245 which, for example, has three rotary driving grooves, in no case two rotating driving grooves being diametrically opposite one another. It is therefore a non-generic tool that can only be inserted into the holder in a certain angular position, but due to the non-diametrically opposed rotary driving grooves, one-sided loads that lead to major wear and tear and considerable cross-sectional weakening occur.
- the invention also relates to a known tool holder for percussion drilling tools with at least two diametrically opposed rotary drivers for axial insertion into rotary driving grooves of tools and with at least one locking body for radial insertion into a locking groove of the tool.
- the invention is also based on the object of designing the tool holder in such a way that the tools according to the invention can only be used in a precisely defined position.
- the clamping shank 11 of a hammer drill shown in FIGS. 1 and 2 has two diametrically opposite locking recesses 12 and, to this end, offset by 90 ° two rotary driving grooves 13 and 14.
- Both rotary driving grooves 13 and 14 have an essentially identical cross-sectional area, however, they differ in that in the rotary driving groove 13 the radially outward opening area is greater than the corresponding opening area of the rotating driving groove 14.
- the rotating driving groove 14 has a radially measured greater depth than the rotating driving groove 13.
- the cross sections of the two grooves 13 and 14 are different.
- the rotary driving grooves 13 and 14 open into the free end face 20 of the clamping shaft, so that the tool shaft can be inserted axially into a tool holder which has strip-shaped rotary drivers adapted to the grooves 13 and 14.
- the second exemplary embodiment shown in FIG. 3 differs from the first exemplary embodiment in that the bottom 26 of the groove 23 corresponding to the groove 13 is convex and in the exemplary embodiment shown is curved coaxially to the axis of the tool.
- the third exemplary embodiment shown in FIG. 4 differs from the first exemplary embodiment according to FIGS. 1 and 2 in that only one locking recess 12 is provided here.
- the fourth exemplary embodiment shown in FIG. 5 differs from the first and third exemplary embodiment according to FIGS. 1, 2 and 4 in that the third locking driving groove 15 is arranged diametrically opposite the single locking recess 12 and has the same cross section as the rotating driving groove 14.
- a tool holder has suitable, strip-shaped rotary drivers for the engagement in the rotary driving grooves 13, 14, 23 and locking bodies for the engagement in the locking recesses 12.
- the locking recesses 12 are arranged at least 90 ° offset from one of the diametrically opposite rotary driving grooves 13, 14.
- each locking recess is offset by more than 90 ° with respect to the rotary driving groove lagging it in the direction of rotation of the tool. This ensures that the flank of the rotary driving groove, which is loaded by the torque to be transmitted, is located at a greater distance from the locking recess adjacent to it than the other flank of the rotating driving groove from the locking recess adjacent to it, so that when the tool is driven surfaces of the rotary driving grooves in the tool shank that are subject to pressure are better supported.
- the advantage is achieved that the driver of the tool holder can be made very wide without the cross section of the tool having to be reduced thereby.
- the design according to the invention has the advantage that clamping shanks This type can be produced with the same devices as the usual known tools, in which the rotary driving grooves are arranged diametrically opposite one another.
- the rotary driving grooves are trapezoidal in cross-section, as is often the case with the known clamping shanks.
- the cross sections of the rotary driving grooves can, however, have any shape suitable for a positive rotary connection with the rotating drivers.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
Die Erfindung betrifft ein Werkzeug mit einem Einspannschaft, der zum Einsetzen in eine Werkzeugaufnahme einer für das Schlagbohren vorgesehenen Handwerkzeugmaschine mit mindestens einander diametral gegenüberliegenden zwei Drehmitnahmenuten versehen ist, die für das axiale Einführen von Drehmitnehmern der Werkzeugaufnahme in die Endstirnfläche des Einspannschaftes münden, und der mindestens eine Verriegelungsaussparung aufweist, die für die Aufnahme eines Verriegelungskörpers der Werkzeugaufnahme mindestens an ihrem der Endstirnfläche des Einspannschaftes benachbarten Ende zur Begrenzung einer Axialbeweglichkeit des verriegelten Werkzeuges geschlossen ist.The invention relates to a tool with a clamping shaft, which is provided for insertion into a tool holder of a handheld power tool intended for percussion drilling with at least two diametrically opposed rotary driving grooves, which open into the end face of the clamping shaft for the axial insertion of rotary drivers of the tool holder, and the at least has a locking recess, which is closed for receiving a locking body of the tool holder at least at its end adjacent to the end face of the clamping shank to limit axial mobility of the locked tool.
Werkzeuge dieser Art sind beispielsweise durch die DE-PS 25 51 125 bekannt.Tools of this type are known for example from DE-PS 25 51 125.
Der Erfindung liegt die Aufgabe zugrunde, Werkzeuge dieser Art so auszubilden, daß sie nur in einer ganz bestimmten Winkelstellung in eine Werkzeugaufnahme einführbar sind.The invention has for its object to design tools of this type so that they can only be inserted into a tool holder in a very specific angular position.
Das kann zur Sicherung zum Beispiel dann von großer Bedeutung sein, wenn die Aufnahme nur einen Verriegelungskörper und der Einspannschaft des Werkzeuges nur eine Verriegelungsaussparung aufweist. Wird in einem solchen Fall das Werkzeug falsch eingesetzt, dann stößt der Verriegelungskörper auf die glatte Oberfläche des Einspannschaftes, wenn er radial in die Verriegelungsstellung bewegt wird. Wird das nicht bemerkt, dann kann das Werkzeug aus der Werkzeugaufnahme herausgeschleudert werden und dadurch Verletzungen verursachen.This can be of great importance for securing, for example, if the receptacle has only one locking body and the clamping shaft of the tool has only one locking recess. If the tool is inserted incorrectly in such a case, then the locking body strikes the smooth surface of the clamping shaft when it is moved radially into the locking position. If this is not noticed, the tool can be thrown out of the tool holder and cause injuries.
Aus der WO 88/09245 ist ein Werkzeug bekannt, welches beispielsweise drei Drehmitnahmenuten aufweist, wobei in keinem Falle zwei Drehmitnahmenuten einander diametral gegenüberliegen. Es handelt sich damit um ein gattungsfremdes Werkzeug, welches nur in einer bestimmten Winkelstellung in die Aufnahme eingesetzt werden kann, wobei aber durch die einander nicht diametral gegenüberliegenden Drehmitnahmenuten einseitige, zu grossen Abnutzungen führende Belastungen sowie erhebliche Querschnittschwächungen auftreten.A tool is known from WO 88/09245 which, for example, has three rotary driving grooves, in no case two rotating driving grooves being diametrically opposite one another. It is therefore a non-generic tool that can only be inserted into the holder in a certain angular position, but due to the non-diametrically opposed rotary driving grooves, one-sided loads that lead to major wear and tear and considerable cross-sectional weakening occur.
Die genannte Aufgabe ist gemäß der Erfindung bei einem eingangs genannten Werkzeug dadurch gelöst, daß die Drehmitnahmenuten unterschiedliche Querschnitte haben, wobei die radial nachaussen gerichteten Öffnungsflächen der Drehmitnahmenuten verschieden sind.The stated object is achieved according to the invention in a tool mentioned at the outset in that the rotary driving grooves have different cross sections, the radially outward opening surfaces of the rotating driving grooves being different.
Dadurch wird erreicht, daß auch unter Berücksichtigung von Bautoleranzen und Abnutzungen der Drehmitnahmenuten im Einspannschaft dieser nur in einer bestimmten Drehstellung in die Werkzeugaufnahme eingesteckt werden kann, wenn die Drehmitnehmer der Werkzeugaufnahme mit entsprechend unterschiedlichen Querschnitten ausgebildet sind.This ensures that, taking into account construction tolerances and wear of the rotary driving grooves in the clamping shank, these can only be inserted into the tool holder in a certain rotational position if the rotary drivers of the tool holder are designed with correspondingly different cross sections.
Die Erfindung bezieht sich auch auf eine bekannte Werkzeugaufnahme für schlagbohrende Werkzeuge mit mindestens zwei einander diametral gegenüberliegenden Drehmitnehmern für das axiale Einführen in Drehmitnahmenuten von Werkzeugen und mit mindestens einem Verriegelungskörper zum radialen Einführen in eine Verriegelungsnut des Werkzeuges.The invention also relates to a known tool holder for percussion drilling tools with at least two diametrically opposed rotary drivers for axial insertion into rotary driving grooves of tools and with at least one locking body for radial insertion into a locking groove of the tool.
Der Erfindung liegt auch hier die Aufgabe zugrunde, die Werkzeugaufnahme so auszubilden, daß in ihr die erfindungsgemäßen Werkzeuge nur in einer genau definierten Stellung einsetzbar sind.The invention is also based on the object of designing the tool holder in such a way that the tools according to the invention can only be used in a precisely defined position.
Diese Aufgabe ist gemäß der Erfindung durch eine Werkzeugaufnahme gelöst, bei der neben den genannten Merkmalen der bekannten Werkzeugaufnahme die Drehmitnehmer durch verschiedene Breiten unterschiedliche Querschnitte aufweisen.This object is achieved according to the invention by a tool holder in which, in addition to the mentioned features of the known tool holder, the rotary drivers have different cross sections due to different widths.
Weitere Merkmale der Erfindung sind in der folgenden Beschreibung von in der Zeichnung dargestellten Ausführungsbeispielen im einzelnen erläutert.Further features of the invention are explained in detail in the following description of exemplary embodiments shown in the drawing.
Es zeigen:
- Fig. 1
- eine Seitenansicht eines Ausführungsbeispiels des abgebrochen dargestellten Einspannschaftes eines Werkzeuges und
- Fig 2 bis 5
- Querschnitte von vier verschiedenen Ausführungsbeispielen.
- Fig. 1
- a side view of an embodiment of the broken shank of a tool and
- Fig. 2 to 5
- Cross sections of four different embodiments.
Der in den Fig. 1 und 2 dargestellte Einspannschaft 11 eines Hammerbohrers weist zwei diametral einander gegenüberliegende Verriegelungsaussparungen 12 und dazu um 90° versetzt zwei Drehmitnahmenuten 13 und 14 auf. Beide Drehmitnahmenuten 13 und 14 haben eine im wesentlichen gleiche Querschnittsfläche, jedoch unterscheiden sie sich dadurch, daß bei der Drehmitnahmenut 13 die radial nach außen gerichtete Öffnungsfläche größer ist als die entsprechende Öffnungsfläche der Drehmitnahmenut 14. Außerdem hat die Drehmitnahmenut 14 eine radial gemessen größere Tiefe als die Drehmitnahmenut 13. Die Querschnitte der beiden Nuten 13 und 14 sind also verschieden.The clamping shank 11 of a hammer drill shown in FIGS. 1 and 2 has two diametrically
Wie das aus Fig. 1 ersichtlich ist, münden die Drehmitnahmenuten 13 und 14 in die freie Endstirnfläche 20 des Einspannschaftes, so daß der Werkzeugschaft axial in eine Werkzeugaufnahme einführbar ist, die den Nuten 13 und 14 angepaßte leistenförmige Drehmitnehmer aufweist.As can be seen from FIG. 1, the
Es ist offensichtlich, daß auch bei größten Bautoleranzen und bei starken Abnutzungen der Drehmitnahmenuten im Einspannschaft und der Drehmitnehmer in der Werkzeugaufnahme durch die unterschiedlichen Querschnitte der Nuten 13, 15 bei einer entsprechenden Ausbildung der Querschnitte der Drehmitnehmer der Einspannschaft nur in einer Stellung in die Werkzeugaufnahme einführbar ist, in der der für die Drehmitnahmenut 13 ausgebildete Drehmitnehmer in diese und der andere Drehmitnehmer in die Drehmitnahmenut 14 eingreift.It is obvious that even with the greatest construction tolerances and with strong wear of the rotary driving grooves in the clamping shank and the rotating drivers in the tool holder by the different cross sections of the
Das in Fig. 3 dargestellte zweite Ausführungsbeispiel unterscheidet sich von dem ersten Ausführungsbeispiel dadurch, daß der Boden 26 der der Nut 13 entsprechenden Nut 23 konvex und beim dargestellten Ausführungsbeispiel koaxial zur Achse des Werkzeuges gewölbt ist.The second exemplary embodiment shown in FIG. 3 differs from the first exemplary embodiment in that the bottom 26 of the groove 23 corresponding to the
Das in Fig. 4 dargestellte dritte Ausführungsbeispiel unterscheidet sich von dem ersten Ausführungsbeispiel nach den Fig. 1 und 2 dadurch, daß hier nur eine Verriegelungsaussparung 12 vorgesehen ist.The third exemplary embodiment shown in FIG. 4 differs from the first exemplary embodiment according to FIGS. 1 and 2 in that only one
Das in Fig. 5 dargestellte vierte Ausführungsbeispiel unterscheidet sich von dem ersten und dritten Ausführungsbeispiel nach Fig. 1, 2 bzw. 4 dadurch, daß hier der einzigen Verriegelungsaussparung 12 eine dritte Drehmitnahmenut 15 diametral gegenüber angeordnet ist, die den gleichen Querschnitt hat wie die Drehmitnahmenut 14.The fourth exemplary embodiment shown in FIG. 5 differs from the first and third exemplary embodiment according to FIGS. 1, 2 and 4 in that the third locking driving groove 15 is arranged diametrically opposite the single locking recess 12 and has the same cross section as the rotating
Eine Werkzeugaufnahme weist für den Eingriff in die Drehmitnahmenuten 13, 14, 23 passend ausgebildete, leistenförmige Drehmitnehmer und Verriegelungskörper für den Eingriff in die Verriegelungsaussparungen 12 auf.A tool holder has suitable, strip-shaped rotary drivers for the engagement in the
Bei allen in der Zeichnung dargestellten vier Ausführungsformen sind die Verriegelungsaussparungen 12 mindestens gegenüber der einen der einander diametral gegenüberliegenden Drehmitnahmenuten 13, 14, um 90° versetzt angeordnet.In all four embodiments shown in the drawing, the
Bei einem weiteren nicht dargestellten Ausführungsbeispiel ist jede Verriegelungsaussparung gegenüber der ihr in der Drehrichtung des Werkzeuges nacheilenden Drehmitnahmenut um mehr als 90° versetzt. Dadurch wird erreicht, daß diejenige Flanke der Drehmitnahmenut die durch das zu übertragende Drehmoment auf Druck belastet ist, sich von der ihr benachbarten Verriegelungsaussparung in einem größeren Abstand befindet als die andere Flanke der Drehmitnahmenut von der dieser benachbarten Verriegelungsaussparung, so daß die beim Antrieb des Werkzeuges auf Druck belastenten Flächen der Drehmitnahmenuten im Werkzeugschaft besser abgestützt sind.In a further embodiment, not shown, each locking recess is offset by more than 90 ° with respect to the rotary driving groove lagging it in the direction of rotation of the tool. This ensures that the flank of the rotary driving groove, which is loaded by the torque to be transmitted, is located at a greater distance from the locking recess adjacent to it than the other flank of the rotating driving groove from the locking recess adjacent to it, so that when the tool is driven surfaces of the rotary driving grooves in the tool shank that are subject to pressure are better supported.
Durch die konvexe Ausbildung des Bodens 26 der Drehmitnahmenut 23 gemäß des Ausführungsbeispiels nach den Fig. 3 wird der Vorteil erreicht, daß der Mitnehmer der Werkzeugaufnahme sehr breit ausgebildet werden kann, ohne daß der Querschnitt des Werkzeuges dadurch verringert werden muß.Due to the convex design of the bottom 26 of the rotary driving groove 23 according to the exemplary embodiment according to FIG. 3, the advantage is achieved that the driver of the tool holder can be made very wide without the cross section of the tool having to be reduced thereby.
Gegenüber anderen Ausbildungen der Werkzeugschäfte gegen falsches Einsetzen, wie z.B. in der DE-C2-37 16 915 vorgeschlagen, hat die erfindungsgemäße Ausbildung den Vorteil, daß Einspannschäfte dieser Art mit den gleichen Vorrichtungen hergestellt werden können, wie die üblichen bekannten Werkzeuge, bei denen die Drehmitnahmenuten einander diametral gegenüber angeordnet sind.Compared to other designs of the tool shanks against incorrect insertion, as suggested, for example, in DE-C2-37 16 915, the design according to the invention has the advantage that clamping shanks This type can be produced with the same devices as the usual known tools, in which the rotary driving grooves are arranged diametrically opposite one another.
Bei den dargestellten Ausführungsbeispielen sind die Drehmitnahmenuten im Querschnitt trapezförmig, wie das bei den bekannten Einspannschäften oft üblich ist. Die Querschnitte der Drehmitnahmenuten können jedoch jede beliebige, für eine formschlüssige Drehverbindung mit den Drehmitnehmern geeignete Form haben.In the illustrated embodiments, the rotary driving grooves are trapezoidal in cross-section, as is often the case with the known clamping shanks. The cross sections of the rotary driving grooves can, however, have any shape suitable for a positive rotary connection with the rotating drivers.
Die vorstehende Beschreibung und die Zeichnung beschränken sich nur auf die Angabe von Merkmalen, die für die beispielsweise Verkörperung der Erfindung wesentlich sind.The above description and the drawing are limited to the specification of features which are essential for the embodiment of the invention, for example.
Claims (6)
- Tool comprising a clamping shaft (11)
which is provided, for the purpose of insertion into a tool chuck of a hand operated percussion drill, with at least two diametrally opposite rotary pickup grooves (13, 14, 23), which terminate in the end surfaces (20) of the clamping shaft (11) for axial insertion of rotary pickups of the chuck, and
which has at least one locking cut-out (12) which, for accommodating a locking body of the chuck, is closed at least at its end adjacent the end surface (20) of the clamping shaft (11), in order to restrict axial mobility of the locked tool, characterised in that the rotary pickup grooves (13, 14, 23) have different cross-sections, in which respect the radially outwardly oriented opening surfaces of the rotary pickup grooves (13, 14) are different. - Tool according to claim 1, characterised in that the different rotary pickup grooves (13, 14) are of different depths.
- Tool according to claim 1 or 2, characterised in that at least one rotary pickup groove (23) has a convexedly curved ground surface (26).
- Tool according to one of claims 1 to 3, charac terised in that there is only of locking cut-out (12), and that on the opposite side thereof is arranged a third rotary pickup groove (15).
- Tool according to one of claims 1 to 4, charac terised in that the locking cut-out is offset by more than 90° relative to rotary pickup groove which follows it in the rotary direction of the tool.
- Tool chuck for percussion-drilling tools- with at least two diametrally oppositely arranged rotary pickups for axial insertion into the rotary pickup grooves (13, 14, 23) of tools, and- with at least one locking body for radial insertion into a locking cut-out (12) of the tool, characterised in that- the rotary pickups have cross-sections which differ in their widths.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19893941646 DE3941646A1 (en) | 1989-12-16 | 1989-12-16 | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
| DE3941646 | 1989-12-16 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92101238.1 Division-Into | 1992-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0433876A1 EP0433876A1 (en) | 1991-06-26 |
| EP0433876B1 true EP0433876B1 (en) | 1993-11-24 |
Family
ID=6395634
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19900124024 Expired - Lifetime EP0433876B1 (en) | 1989-12-16 | 1990-12-13 | Tool for percussive drilling and tool retainer for percussive drilling tools |
| EP19920101238 Withdrawn EP0483112A3 (en) | 1989-12-16 | 1990-12-13 | Tool for percussive drilling and chuck therefor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19920101238 Withdrawn EP0483112A3 (en) | 1989-12-16 | 1990-12-13 | Tool for percussive drilling and chuck therefor |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP0433876B1 (en) |
| DE (2) | DE3941646A1 (en) |
| DK (1) | DK0433876T3 (en) |
Families Citing this family (23)
| 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 |
| DE3941646A1 (en) | 1989-12-16 | 1991-06-20 | Heller Werkzeug Gmbh Geb | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
| DE4105414A1 (en) * | 1991-02-21 | 1992-08-27 | Hilti Ag | TOOL AND TOOL HOLDER FOR HAND TOOLS |
| DE4132023A1 (en) * | 1991-09-26 | 1993-04-01 | Bosch Gmbh Robert | FITTING ON HAND MACHINE TOOLS |
| DE4137120A1 (en) * | 1991-11-12 | 1993-05-13 | Hilti Ag | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
| DE4141846A1 (en) * | 1991-12-18 | 1993-06-24 | Hilti Ag | IMPACT DRILLING TOOLS AND CHISELING TOOLS FOR THESE TOOLS |
| DE4200643A1 (en) * | 1992-01-13 | 1993-07-15 | Hilti Ag | IMPACT DRILLING TOOLS AND CHISELING TOOLS FOR THESE TOOLS |
| DE4242452A1 (en) * | 1992-07-15 | 1994-01-20 | Hilti Ag | Tool and tool holder for hand tools |
| DE4227949A1 (en) * | 1992-08-22 | 1994-02-24 | Bosch Gmbh Robert | Tool for hand machine tools |
| DE4400969A1 (en) * | 1994-01-14 | 1995-07-20 | Bosch Gmbh Robert | Device on hand-held machine tools for turning tools |
| BR9408483A (en) * | 1994-01-14 | 1997-08-26 | Bosch Gmbh Robert | Machine tool device for rotary tool drag |
| DE4402802C2 (en) * | 1994-01-31 | 2003-01-30 | Hilti Ag | Tool and tool holder for hand tools |
| DE4403303A1 (en) * | 1994-02-03 | 1995-08-10 | Hilti Ag | Tool and tool holder for hand tools |
| JP3090013B2 (en) * | 1995-12-04 | 2000-09-18 | 日立電子エンジニアリング株式会社 | IC device transfer equipment |
| DE19819631A1 (en) | 1998-05-04 | 1999-11-11 | Hilti Ag | Tool for hand machine tools |
| DE10338640A1 (en) * | 2003-08-22 | 2005-03-17 | Hilti Ag | Plug-in ends for a rotating and beating tool |
| ATE460255T1 (en) | 2003-11-26 | 2010-03-15 | Hilti Ag | TOOL HOLDER FOR A ROTATING AND IMPACTING TOOL |
| DE10357380A1 (en) * | 2003-12-05 | 2005-06-30 | Hilti Ag | Plug-in ends for a rotating and / or beating tool |
| DE102004026850A1 (en) * | 2004-06-02 | 2005-12-29 | Hilti Ag | Plug-in ends for a rotating and / or beating tool |
| DE102005059314B4 (en) | 2005-12-09 | 2018-11-22 | Henkel Ag & Co. Kgaa | Acid, chromium-free aqueous solution, its concentrate, and a process for the corrosion protection treatment of metal surfaces |
| CN105904416B (en) * | 2016-06-24 | 2018-05-15 | 相城区黄桥荣翔金属制品厂 | A kind of stable plummer |
| CN105904419B (en) * | 2016-06-24 | 2018-05-15 | 相城区黄桥荣翔金属制品厂 | A kind of rotational positioning plummer |
| CN106112847B (en) * | 2016-06-24 | 2018-03-06 | 相城区黄桥荣翔金属制品厂 | A kind of positioning tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2551125C2 (en) * | 1975-11-14 | 1987-04-23 | Robert Bosch Gmbh, 7000 Stuttgart | Device on hand-held power tools for torque transmission |
| DE2650134A1 (en) * | 1976-10-30 | 1978-05-11 | Bosch Gmbh Robert | TOOL SHAFT |
| DE3205063C2 (en) * | 1981-04-03 | 1986-10-09 | Robert Bosch Gmbh, 7000 Stuttgart | Tool holder |
| DE3745046C2 (en) * | 1987-05-20 | 1996-07-25 | Bosch Gmbh Robert | Torque coupling e.g. for hand held electric impact drill |
| DE3824894A1 (en) * | 1988-07-22 | 1990-01-25 | Bosch Gmbh Robert | DEVICE ON HAND MACHINE TOOLS FOR TORQUE TRANSMISSION |
| DE3941646A1 (en) | 1989-12-16 | 1991-06-20 | Heller Werkzeug Gmbh Geb | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
-
1989
- 1989-12-16 DE DE19893941646 patent/DE3941646A1/en not_active Withdrawn
-
1990
- 1990-12-13 DE DE90124024T patent/DE59003616D1/en not_active Expired - Lifetime
- 1990-12-13 DK DK90124024T patent/DK0433876T3/en active
- 1990-12-13 EP EP19900124024 patent/EP0433876B1/en not_active Expired - Lifetime
- 1990-12-13 EP EP19920101238 patent/EP0483112A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0433876A1 (en) | 1991-06-26 |
| EP0483112A2 (en) | 1992-04-29 |
| EP0483112A3 (en) | 1992-05-27 |
| DE59003616D1 (en) | 1994-01-05 |
| DK0433876T3 (en) | 1994-04-18 |
| DE3941646A1 (en) | 1991-06-20 |
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