EP0516581A2 - Drilling and chiselling tool with basic body and cutting element - Google Patents
Drilling and chiselling tool with basic body and cutting element Download PDFInfo
- Publication number
- EP0516581A2 EP0516581A2 EP92810283A EP92810283A EP0516581A2 EP 0516581 A2 EP0516581 A2 EP 0516581A2 EP 92810283 A EP92810283 A EP 92810283A EP 92810283 A EP92810283 A EP 92810283A EP 0516581 A2 EP0516581 A2 EP 0516581A2
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- EP
- European Patent Office
- Prior art keywords
- recess
- base body
- main axis
- tool according
- tool
- 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.)
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- 238000005520 cutting process Methods 0.000 title claims abstract description 26
- 238000005553 drilling Methods 0.000 title claims abstract description 12
- 229910000679 solder Inorganic materials 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims description 19
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 230000035882 stress Effects 0.000 description 13
- 230000006378 damage Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/58—Chisel-type inserts
-
- 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
- Y10T408/909—Having peripherally spaced cutting edges
Definitions
- the invention relates to a drilling and chiseling tool with a base body made of steel and a cutting body made of hard metal in a recess of the base body, the recess being open towards the machining end of the tool and extending parallel to the main axis of the tool and passing through the cross section formed normal to the main axis Has side walls.
- Drilling and chisel tools of the type mentioned have been widespread for many years and have accordingly proven themselves in use.
- problems arise due to the extremely different material properties between the steel used as the base body and the hard metal used as the cutting body. These problems can arise on the one hand during production and on the other hand only when using the tools.
- the problems that arise during production include, for example, the thermal stresses which are caused by the different thermal expansion coefficients of the materials used.
- the invention has for its object to provide a drilling and chiseling tool, in which overstressing of the individual parts occurring in use is avoided, so that the service life of the tool is increased overall.
- the object is achieved in that a solder seam is provided for connecting the cutting body to the base body in the region of the side walls, which has a substantially uniform distribution of the shear stress over the length extending parallel to the main axis.
- the measure according to the invention on a drilling and chiseling tool reduces shear stress peaks in the region of the longitudinal ends of the recess. This results in a uniform distribution of the shear stresses in the solder seam creating the connection between the base body and the cutting body over the length extending parallel to the main axis. Overloads, which lead to the destruction of the solder seam and the adjacent areas of the base body and the cutting body, are avoided in this way.
- the solder seam is preferably of different thickness over the length extending parallel to the main axis.
- the variation of the thickness is expediently designed such that it increases towards both longitudinal ends.
- the solder seam is therefore thicker in those areas where the highest shear stresses occur. As a result, in there is more material available for solder in those areas, so that these areas are able to better balance the shear stresses and thus reduce peaks.
- solder seam with different thicknesses can be achieved in various ways. On the one hand, this can be done by a corresponding shape of the cutting body, so that its longitudinal extension is slightly convex. On the other hand, in an analogous manner, the recess can have a corresponding shape, which leads to a slightly convex design of the side walls in the longitudinal direction. A combination of these two measures is of course also possible.
- the relief notches can be designed, for example, as bores which penetrate the base body in the region of the longitudinal end of the recess facing away from the machining end of the tool. Such bores impart a certain flexibility to the base body in the bottom region of the recess. Shear stress peaks can thus be reduced and, above all, any solder seam that may be present in the bottom region of the recess is relieved in such a way that breaks no longer occur here.
- the relief notches As open grooves. These grooves preferably run parallel to the cutting body over the entire front cross-section of the tool. Applying the knowledge that the more shear stress peaks are reduced, the greater the ratio between the thickness of the cutting body and the thickness of the area surrounding the cutting body of the base body, the wall thickness of the base body remaining between the recess and the grooves is preferably 0.1 to 0 , 8 times the width of the recess. In this area of the recess, too, a resilience of the base body which serves to reduce the shear stress peaks is achieved.
- Fig. 1 shows the machining end of a drilling and Chisel tool with base body 1 and cutting body 2.
- the base body 1 For receiving the cutting body 2, the base body 1 has a recess 3.
- the solder seam 4 is located between the recess 3 and the cutting body 2.
- the solder seam 4 has a different thickness along the length running parallel to the main axis in such a way that the thickness is greatest at the two longitudinal ends.
- the different thickness of the solder seam 4 comes about in the example shown in that the side walls of the recess 3 are slightly convex.
- FIG. 2 shows a machining end of a drilling and chiseling tool which has a base body 5 with a recess 7, a cutting body 6 being arranged in the recess 7. There is a solder seam 8 between the cutting body 6 and the recess 7.
- the base body 5 is penetrated by bores 9, which have the function of relief notches.
- FIG. 3 again shows a machining end of another drilling and chiseling tool with a base body 10 and a cutting body 11 within a recess 12.
- a solder seam 13 is arranged between the cutting body 11 and the recess 12.
- a cutout 14, which penetrates the base body 10 is provided next to the recess 12 opposite the machining end. Because of this recess 14, the solder seam 13 is interrupted at the base of the recess 12.
- the machining end of a drilling and chiseling tool that can be seen in FIG. 4 has a base body 15 with a recess 17 and a cutting body 16 arranged therein. There is an emergency seam 18 between the cutting body 16 and the recess 17.
- the base body 15 has grooves 19 in the region of the machining end, which pass through the basic body 15 and are open towards the machining end are.
- the wall thickness w remaining between the recess 17 and the grooves 19 is less than the width b of the recess 17, ie the wall thickness w is 0.1 to 0.8 times the width b of the recess 17.
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
Ein Bohr- und Meisselwerkzeug mit einem Grundkörper (1) aus Stahl enthält innerhalb einer Ausnehmung (3) einen Schneidkörper (2) aus Hartmetall. Zur Befestigung des Schneidkörpers (2) innerhalb der Ausnehmung (3) ist eine Lotnaht (4) vorgesehen. Die Verbindung des Schneidkörpers (2) mit dem Grundkörper (1) ist derart ausgebildet, dass Schubspannungsspitzen in den Endbereichen der Ausnehmung (3) unterbleiben. Diesem Zwecke dient nebst der Anordnung von Entlastungskerben eine zu den Enden hin eine zunehmende Dicke aufweisende Lotnaht (4). <IMAGE>A drilling and chiseling tool with a base body (1) made of steel contains a cutting body (2) made of hard metal within a recess (3). A solder seam (4) is provided for fastening the cutting body (2) within the recess (3). The connection of the cutting body (2) to the base body (1) is designed in such a way that shear stress peaks do not occur in the end regions of the recess (3). In addition to the arrangement of relief notches, a solder seam (4) that increases in thickness towards the ends serves this purpose. <IMAGE>
Description
Die Erfindung betrifft ein Bohr- und Meisselwerkzeug mit einem Grundkörper aus Stahl und einem Schneidkörper aus Hartmetall in einer Ausnehmung des Grundkörpers, wobei die Ausnehmung zum bearbeitungsseitigen Ende des Werkzeuges hin offen ist und parallel zur Hauptachse des Werkzeuges verlaufende, den normal zur Hauptachse gebildeten querschnitt durchsetzende Seitenwände aufweist.The invention relates to a drilling and chiseling tool with a base body made of steel and a cutting body made of hard metal in a recess of the base body, the recess being open towards the machining end of the tool and extending parallel to the main axis of the tool and passing through the cross section formed normal to the main axis Has side walls.
Bohr- und Meisselwerkzeuge der genannten Art sind seit vielen Jahren verbreitet und haben sich dementsprechend im Einsatz auch bewährt. Allerdings entstehen aufgrund der äusserst unterschiedlichen Materialeigenschaften zwischen dem als Grundkörper verwendeten Stahl und dem als Schneidkörper verwendeten Hartmetall Probleme. Diese Probleme können einerseits bei der Fertigung und andererseits erst beim Einsatz der Werkzeuge entstehen.Drilling and chisel tools of the type mentioned have been widespread for many years and have accordingly proven themselves in use. However, problems arise due to the extremely different material properties between the steel used as the base body and the hard metal used as the cutting body. These problems can arise on the one hand during production and on the other hand only when using the tools.
Zu den bei der Fertigung entstehenden Probleme zählen beispielsweise die Wärmespannungen, welche durch die unterschiedlichen Wärmeausdehnungskoeffizienten der verwendeten Materialien hervorgerufen werden. Um diesem Problem entgegenzutreten, wird beispielsweise entsprechend DE-OS 34 26 977 vorgeschlagen, der Ausnehmung im Grundkörper eine im Vergleich zum Schneidkörper grössere Längserstreckung zu verleihen.The problems that arise during production include, for example, the thermal stresses which are caused by the different thermal expansion coefficients of the materials used. In order to counter this problem, it is proposed, for example in accordance with DE-OS 34 26 977, to give the recess in the base body a greater longitudinal extent than the cutting body.
Mit dieser bekannten Lösung können die im Einsatz der Werkzeuge entstehenden wesentlich einschneidenderen Probleme keineswegs gelöst werden. Diese Probleme im Einsatz der Werkzeuge bestehen vor allem darin, dass durch die sehr unterschiedlichen Elastizitätsmodule der verwendeten Materialien Ueberbeanspruchungen auftreten, welche zu Beschädigungen führen, die die Lebensdauer der Werkzeuge beeinträchtigen. Die Ursache dieser Ueberbeanspruchungen liegt vor allem in den entlang der Hauptachse der Werkzeuge sehr unterschiedlichen Schubspannungen, welche ihre Spitzenwerte an den beiden Längsenden der Ausnehmung aufweisen. Dadurch entstehen im Bereich dieser Längsenden sowohl Beschädigungen der Lotnaht als auch Beschädigungen des Grundkörpers sowie des Schneidkörpers.With this known solution, the significantly more incisive problems arising in the use of the tools cannot be solved in any way. These problems in the use of the tools consist mainly in the very different elasticity modules of the materials used Excessive stresses occur which lead to damage that impair the service life of the tools. The cause of these overstressing lies above all in the very different shear stresses along the main axis of the tools, which have their peak values at the two longitudinal ends of the recess. This causes damage to the solder seam as well as damage to the base body and the cutting body in the region of these longitudinal ends.
Der Erfindung liegt die Aufgabe zugrunde, ein Bohr- und Meisselwerkzeug zu schaffen, bei dem im Einsatz entstehende Ueberbeanspruchungen der einzelnen Teile vermieden werden, so dass dadurch die Lebensdauer des Werkzeuges insgesamt erhöht wird.The invention has for its object to provide a drilling and chiseling tool, in which overstressing of the individual parts occurring in use is avoided, so that the service life of the tool is increased overall.
Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass zur Verbindung des Schneidkörpers mit dem Grundkörper im Bereich der Seitenwände eine Lotnaht vorgesehen ist, die im wesentlichen eine gleichmässige Verteilung der Schubspannung über die sich parallel zur Hauptachse erstreckende Länge aufweist.According to the invention, the object is achieved in that a solder seam is provided for connecting the cutting body to the base body in the region of the side walls, which has a substantially uniform distribution of the shear stress over the length extending parallel to the main axis.
Die erfindungsgemässe Massnahme an einem Bohr- und Meisselwerkzeug baut Schubspannungsspitzen im Bereich der Längsenden der Ausnehmung ab. Dadurch entsteht über die sich parallel zur Hauptachse erstreckende Länge eine gleichmässige Verteilung der Schubspannungen in der die Verbindung zwischen Grundkörper und Schneidkörper schaffenden Lotnaht. Ueberbeanspruchungen, die zur Zerstörung der Lotnaht sowie der benachbarten Bereiche von Grundkörper und Schneidkörper führen, werden dadurch vermieden.The measure according to the invention on a drilling and chiseling tool reduces shear stress peaks in the region of the longitudinal ends of the recess. This results in a uniform distribution of the shear stresses in the solder seam creating the connection between the base body and the cutting body over the length extending parallel to the main axis. Overloads, which lead to the destruction of the solder seam and the adjacent areas of the base body and the cutting body, are avoided in this way.
In bevorzugter Weise ist zur gleichmässigen Verteilung der Schubspannung die Lotnaht über die sich parallel zur Hauptachse erstreckende Länge unterschiedlich dick. Die Variation der Dicke ist dabei zweckmässigerweise derart ausgebildet, dass sie zu beiden Längsenden hin zunimmt. Die Lotnaht ist damit in jenen Bereichen, wo die höchsten Schubspannungen auftreten, dicker ausgebildet. Dies hat zur Folge, dass in jenen Bereichen mehr Material an Lot zur Verfügung steht, so dass diese Bereiche in der Lage sind, die Schubspannungen besser auszugleichen und somit Spitzen abzubauen.In order to distribute the shear stress evenly, the solder seam is preferably of different thickness over the length extending parallel to the main axis. The variation of the thickness is expediently designed such that it increases towards both longitudinal ends. The solder seam is therefore thicker in those areas where the highest shear stresses occur. As a result, in there is more material available for solder in those areas, so that these areas are able to better balance the shear stresses and thus reduce peaks.
Die Erzielung einer solchen Lotnaht mit unterschiedlicher Dicke kann in verschiedenartiger Weise erfolgen. Zum einen kann dies durch eine entsprechende Form des Schneidkörpers geschehen, so dass dieser in seiner Längserstreckung leicht konvex ausgebildet ist. Zum anderen kann in analoger Weise die Ausnehmung eine entsprechende Formgebung aufweisen, was zu einer leicht konvexen Ausbildung der Seitenwände in Längserstreckung führt. Darüber hinaus ist selbstverständlich auch eine Rombination dieser beiden Massnahmen möglich.Such a solder seam with different thicknesses can be achieved in various ways. On the one hand, this can be done by a corresponding shape of the cutting body, so that its longitudinal extension is slightly convex. On the other hand, in an analogous manner, the recess can have a corresponding shape, which leads to a slightly convex design of the side walls in the longitudinal direction. A combination of these two measures is of course also possible.
Separat oder in Ergänzung zu den vorgenannten Massnahmen können entsprechende Vorkehrungen im Grundkörper getroffen werden. Diese Vorkehrungen im Grundkörper bestehen vorzugsweise in der Anordnung von Entlastungskerben, wobei solche Entlastungskerben im Bereich der Ausnehmung vorzusehen sind und sich zweckmässigerweise normal zur Hauptachse und parallel zu den Seitenwänden der Ausnehmung erstrecken. Die Wirkung solcher Entlastungskerben besteht im wesentlichen darin, dass eine gewisse Nachgiebigkeit des Grundkörpers in den kritischen Bereichen, dh im Bereich der Längsenden der Ausnehmung erzielt wird.Appropriate precautions can be taken in the base body separately or in addition to the aforementioned measures. These precautions in the base body preferably consist in the arrangement of relief notches, such relief notches being provided in the region of the recess and expediently extending normal to the main axis and parallel to the side walls of the recess. The effect of such relief notches essentially consists in that a certain flexibility of the base body is achieved in the critical areas, ie in the area of the longitudinal ends of the recess.
Die Entlastungskerben können beispielsweise als Bohrungen ausgebildet sein, welche den Grundkörper im Bereich des vom bearbeitungsseitigen Ende des Werkzeuges abgewandten Längsende der Ausnehmung durchsetzen. Durch solche Bohrungen wird dem Grundkörper im Bodenbereich der Ausnehmung eine gewisse Nachgiebigkeit verliehen. Damit können Schubspannungsspitzen abgebaut werden und vor allem wird eine gegebenenfalls im Bodenbereich der Ausnehmung vorhandene Lotnaht derart entlastet, dass Brüche hier nicht mehr auftreten.The relief notches can be designed, for example, as bores which penetrate the base body in the region of the longitudinal end of the recess facing away from the machining end of the tool. Such bores impart a certain flexibility to the base body in the bottom region of the recess. Shear stress peaks can thus be reduced and, above all, any solder seam that may be present in the bottom region of the recess is relieved in such a way that breaks no longer occur here.
Den vorgenannten Gedanken noch konsequenter weiterverfolgend, wird gemäss einer weiteren Ausführungsform vorgeschlagen, die Entlastungskerben von einer Aussparung zu bilden, die sich an das vom bearbeitungsseitigen Ende des Werkzeuges abgewandten Längsende der Ausnehmung anschliesst. Dadurch wird eine gewisse Nachgiebigkeit des Grundkörpers erreicht, was zu einer Vermeidung von Spannungsspitzen führt.Pursuing the aforementioned idea even more consistently, it is proposed according to a further embodiment that to form the relief notches from a recess which adjoins the longitudinal end of the recess facing away from the machining end of the tool. This achieves a certain flexibility of the base body, which leads to the avoidance of stress peaks.
Zum Abbau der Schubspannungsspitzen im Bereich des bearbeitungsseitigen Endes wird vorgeschlagen, die Entlastungskerben als offene nuten auszubilden. Bevorzugt verlaufen diese nuten parallel zum Schneidkörper über den gesamten stirnseitigen querschnitt des Werkzeuges. Unter Anwendung der Erkenntnis, dass, je mehr Schubspannungsspitzen abgebaut werden, desto grösser das Verhältnis zwischen Dicke des Schneidkörpers und Dicke des die Schneidkörper umstehenden Bereiches vom Grundkörper ist, beträgt die zwischen Ausnehmung und nuten verbleibende Wandstärke des Grundkörpers vorzugsweise das 0,1- bis 0,8-fache der Breite der Ausnehmung. Es wird damit auch in diesem Bereich der Ausnehmung eine dem Abbau der Schubspannungsspitzen dienende Nachgiebigkeit des Grundkörpers erzielt.To reduce the shear stress peaks in the area of the machining end, it is proposed to design the relief notches as open grooves. These grooves preferably run parallel to the cutting body over the entire front cross-section of the tool. Applying the knowledge that the more shear stress peaks are reduced, the greater the ratio between the thickness of the cutting body and the thickness of the area surrounding the cutting body of the base body, the wall thickness of the base body remaining between the recess and the grooves is preferably 0.1 to 0 , 8 times the width of the recess. In this area of the recess, too, a resilience of the base body which serves to reduce the shear stress peaks is achieved.
Die Erfindung soll nunmehr anhand der sie beispielsweise wiedergebenden Zeichnungen näher erläutert werden. Es zeigen:
- Fig. 1 das bearbeitungsseitige Ende eines Werkzeuges mit unterschiedlich dicker Lotnaht;
- Fig. 2 das bearbeitungsseitige Ende eines Werkzeuges mit Bohrungen;
- Fig. 3 das bearbeitungsseitige Ende eines Werkzeuges mit Aussparung;
- Fig. 4 das bearbeitungsseitige Ende eines Werkzeuges mit Nuten.
- Figure 1 shows the machining end of a tool with solder seam of different thickness.
- Figure 2 shows the machining end of a tool with holes.
- 3 shows the machining end of a tool with a recess;
- Fig. 4 shows the machining end of a tool with grooves.
Fig. 1 zeigt das bearbeitungsseitige Ende eines Bohr- und Meisselwerkzeuges mit Grundkörper 1 und Schneidkörper 2. Zur Aufnahme des Schneidkörpers 2 weist der Grundkörper 1 eine Ausnehmung 3 auf. Zwischen der Ausnehmung 3 und dem Schneidkörper 2 befindet sich die Lotnaht 4.Fig. 1 shows the machining end of a drilling and Chisel tool with base body 1 and cutting
Wie aus der Fig. 1 zu entnehmen ist, weist die Lotnaht 4 entlang der parallel zur Hauptachse verlaufenden Länge eine unterschiedliche Dicke derart auf, dass die Dicke an den beiden Längsenden am grössten ist. Die unterschiedliche Dicke der Lotnaht 4 kommt im gezeigten Beispiel dadurch zustande, dass die Seitenwände der Ausnehmung 3 leicht konvex gewölbt ausgebildet sind.As can be seen from FIG. 1, the solder seam 4 has a different thickness along the length running parallel to the main axis in such a way that the thickness is greatest at the two longitudinal ends. The different thickness of the solder seam 4 comes about in the example shown in that the side walls of the
Aus Fig. 2 ist ein bearbeitungsseitiges Ende eines Bohr- und Meisselwerkzeuges ersichtlich, das einen Grundkörper 5 mit einer Ausnehmung 7 aufweist, wobei in der Ausnehmung 7 ein Schneidkörper 6 angeordnet ist. Zwischen Schneidkörper 6 und Ausnehmung 7 besteht eine Lotnaht 8. Der Grundkörper 5 wird von Bohrungen 9 durchsetzt, welchen die Funktion von Entlastungskerben zukommt.2 shows a machining end of a drilling and chiseling tool which has a
Ein bearbeitungsseitiges Ende eines weiteren Bohr- und Meisselwerkzeuges zeigt Fig. 3 wiederum mit einem Grundkörper 10 und einem Schneidkörper 11 innerhalb einer Ausnehmung 12. Eine Lotnaht 13 ist zwischen Schneidkörper 11 und Ausnehmung 12 angeordnet. Zur Erzielung der Wirkung von Entlastungskerben ist entgegen dem bearbeitungsseitigen Ende anschliessend an die Ausnehmung 12 eine Aussparung 14 vorgesehen, welche den Grundkörper 10 durchsetzt. Aufgrund dieser Aussparung 14 ist am Grund der Ausnehmung 12 die Lotnaht 13 unterbrochen.3 again shows a machining end of another drilling and chiseling tool with a
Das aus Fig. 4 entnehmbare bearbeitungsseitige Ende eines Bohr- und Meisselwerkzeuges weist einen Grundkörper 15 mit Ausnehmung 17 sowie darin angeordnetem Schneidkörper 16 auf. Zwischen dem Schneidkörper 16 und der Ausnehmung 17 besteht eine Notnaht 18. Der Grundkörper 15 weist im Bereich des bearbeitungsseitigen Endes Nuten 19 auf, welche den Grundkörper 15 durchsetzen und zum bearbeitungsseitigen Ende hin offen sind. Die zwischen der Ausnehmung 17 und den Nuten 19 verbleibende Wandstärke w ist geringer als die Breite b der Ausnehmung 17, dh die Wandstärke w beträgt das 0,1- bis 0,8-fache der Breite b der Ausnehmung 17.The machining end of a drilling and chiseling tool that can be seen in FIG. 4 has a
Die vorstehend beschriebenen Ausführungsformen zeigen alle Beispiele, welche der Lösung der Aufgabe zur vorliegenden Erfindung dienen. Die Beispiele können an einem Bohr- und Meisselwerkzeug einzeln oder in geeigneter Rombination untereinander Anwendung finden, wobei eine Rombination den Vorteil hat, dass sich die vorteilhaften Wirkungen gegebenenfalls addieren.The embodiments described above show all examples which serve to achieve the object of the present invention. The examples can be used individually or in a suitable combination with one another on a drilling and chiseling tool, a combination having the advantage that the advantageous effects may add up.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4114271A DE4114271A1 (en) | 1991-05-02 | 1991-05-02 | DRILLING AND CHISELING TOOL WITH BASIC BODY AND CUTTING BODY |
| DE4114271 | 1991-05-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0516581A2 true EP0516581A2 (en) | 1992-12-02 |
| EP0516581A3 EP0516581A3 (en) | 1993-07-07 |
| EP0516581B1 EP0516581B1 (en) | 1998-07-15 |
Family
ID=6430780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92810283A Expired - Lifetime EP0516581B1 (en) | 1991-05-02 | 1992-04-16 | Drilling and chiselling tool with basic body and cutting element |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5265989A (en) |
| EP (1) | EP0516581B1 (en) |
| JP (1) | JP3426614B2 (en) |
| DE (2) | DE4114271A1 (en) |
| DK (1) | DK0516581T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013108233A1 (en) * | 2013-07-31 | 2015-02-05 | Drebo Werkzeugfabrik Gmbh | drill |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4442266A1 (en) * | 1994-11-28 | 1996-05-30 | Hilti Ag | Tool with carrier body and cutting body |
| US5918105A (en) * | 1994-12-12 | 1999-06-29 | Black & Decker Inc. | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
| TW299385B (en) | 1994-12-12 | 1997-03-01 | Black & Decker Inc | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
| SE507542C2 (en) * | 1996-12-04 | 1998-06-22 | Seco Tools Ab | Milling tools and cutting part for the tool |
| US6250404B1 (en) | 1999-06-08 | 2001-06-26 | The Charles Machine Works, Inc. | Directional boring head |
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| US2101376A (en) * | 1934-10-09 | 1937-12-07 | Wallramit Handel Mij Nv | Percussive boring tool |
| DE671959C (en) * | 1937-08-25 | 1939-02-17 | Meutsch Voigtlaender & Co Vorm | Tool with hard metal cutting edges, in particular rock percussion drill |
| CH272188A (en) * | 1948-01-14 | 1950-12-15 | Sandvikens Jernverks Ab | Push drill bit with at least two carbide cutting inserts. |
| FR981182A (en) * | 1948-02-28 | 1951-05-23 | Sandvikens Jernverks Ab | Percussion drill bit crown |
| FR1006219A (en) * | 1947-12-05 | 1952-04-21 | Sharpener with extra hard insert | |
| US2628072A (en) * | 1949-09-01 | 1953-02-10 | Timken Roller Bearing Co | Drill bit having groove with hard metal cutter insert brazed therein |
| DE765003C (en) * | 1941-10-19 | 1953-10-26 | Hartmetallwerkzeugfabrik Meuts | Tool with hard metal inserts or pads |
| FR1051105A (en) * | 1951-03-01 | 1954-01-13 | Skf Svenska Kullagerfab Ab | Rock punch with hard metal tip |
| US2784943A (en) * | 1952-11-03 | 1957-03-12 | Sandvikens Jernverks Ab | Rock drill bit with cutting insert |
| CH357692A (en) * | 1959-10-13 | 1961-10-31 | Dionisotti Joseph | Rock drilling tool |
| FR1414023A (en) * | 1964-09-03 | 1965-10-15 | Forges & Ateliers Du Saut Du T | Tool consisting of a support and inserts held elastically in said support |
| DE2802119A1 (en) * | 1977-01-20 | 1978-08-03 | Boart Int Ltd | SOLDERING AND METHOD FOR ITS INSTALLATION |
| US4181187A (en) * | 1977-03-03 | 1980-01-01 | Sandvik Aktiebolag | Rock drill bit with stress relief insert sockets |
| DE3426977A1 (en) * | 1984-07-21 | 1986-01-30 | Hawera Probst Gmbh + Co, 7980 Ravensburg | ROCK DRILL |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA631619A (en) * | 1961-11-28 | B. Baker John | Rock drill bit with inserts | |
| US2614813A (en) * | 1949-07-08 | 1952-10-21 | Ingersoll Rand Co | Rock drilling tool |
| GB707021A (en) * | 1951-03-01 | 1954-04-07 | Skf Svenska Kullagerfab Ab | Improvements relating to rock drills |
-
1991
- 1991-05-02 DE DE4114271A patent/DE4114271A1/en not_active Withdrawn
-
1992
- 1992-04-16 DK DK92810283T patent/DK0516581T3/en active
- 1992-04-16 DE DE59209416T patent/DE59209416D1/en not_active Expired - Fee Related
- 1992-04-16 EP EP92810283A patent/EP0516581B1/en not_active Expired - Lifetime
- 1992-04-28 US US07/875,065 patent/US5265989A/en not_active Expired - Fee Related
- 1992-05-01 JP JP11283492A patent/JP3426614B2/en not_active Expired - Fee Related
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2101376A (en) * | 1934-10-09 | 1937-12-07 | Wallramit Handel Mij Nv | Percussive boring tool |
| DE671959C (en) * | 1937-08-25 | 1939-02-17 | Meutsch Voigtlaender & Co Vorm | Tool with hard metal cutting edges, in particular rock percussion drill |
| DE765003C (en) * | 1941-10-19 | 1953-10-26 | Hartmetallwerkzeugfabrik Meuts | Tool with hard metal inserts or pads |
| FR1006219A (en) * | 1947-12-05 | 1952-04-21 | Sharpener with extra hard insert | |
| CH272188A (en) * | 1948-01-14 | 1950-12-15 | Sandvikens Jernverks Ab | Push drill bit with at least two carbide cutting inserts. |
| FR981182A (en) * | 1948-02-28 | 1951-05-23 | Sandvikens Jernverks Ab | Percussion drill bit crown |
| US2628072A (en) * | 1949-09-01 | 1953-02-10 | Timken Roller Bearing Co | Drill bit having groove with hard metal cutter insert brazed therein |
| FR1051105A (en) * | 1951-03-01 | 1954-01-13 | Skf Svenska Kullagerfab Ab | Rock punch with hard metal tip |
| US2784943A (en) * | 1952-11-03 | 1957-03-12 | Sandvikens Jernverks Ab | Rock drill bit with cutting insert |
| CH357692A (en) * | 1959-10-13 | 1961-10-31 | Dionisotti Joseph | Rock drilling tool |
| FR1414023A (en) * | 1964-09-03 | 1965-10-15 | Forges & Ateliers Du Saut Du T | Tool consisting of a support and inserts held elastically in said support |
| DE2802119A1 (en) * | 1977-01-20 | 1978-08-03 | Boart Int Ltd | SOLDERING AND METHOD FOR ITS INSTALLATION |
| US4181187A (en) * | 1977-03-03 | 1980-01-01 | Sandvik Aktiebolag | Rock drill bit with stress relief insert sockets |
| DE3426977A1 (en) * | 1984-07-21 | 1986-01-30 | Hawera Probst Gmbh + Co, 7980 Ravensburg | ROCK DRILL |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013108233A1 (en) * | 2013-07-31 | 2015-02-05 | Drebo Werkzeugfabrik Gmbh | drill |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0516581A3 (en) | 1993-07-07 |
| JPH05124027A (en) | 1993-05-21 |
| DE4114271A1 (en) | 1992-11-05 |
| DE59209416D1 (en) | 1998-08-20 |
| JP3426614B2 (en) | 2003-07-14 |
| US5265989A (en) | 1993-11-30 |
| DK0516581T3 (en) | 1999-04-19 |
| EP0516581B1 (en) | 1998-07-15 |
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