EP1414623B1 - Flat chisel - Google Patents
Flat chisel Download PDFInfo
- Publication number
- EP1414623B1 EP1414623B1 EP02764619A EP02764619A EP1414623B1 EP 1414623 B1 EP1414623 B1 EP 1414623B1 EP 02764619 A EP02764619 A EP 02764619A EP 02764619 A EP02764619 A EP 02764619A EP 1414623 B1 EP1414623 B1 EP 1414623B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chisel
- cutting
- cutting edge
- lip
- flat
- 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
- B25D17/02—Percussive tool bits
Definitions
- the invention relates to a flat chisel and that a Einsteckm adoptedel for power driven drill and chipping hammers for processing of rock according to the preamble of claim 1.
- Such flat chisels are used in the processing of rocks, in particular wall rocks used to produce, for example, openings, channels and slots.
- Flat chisels are known from the prior art whose main cutting edge is arranged transversely to a longitudinal axis of the chisel.
- a disadvantage of such chisels is that they tend to jam in the material, especially in a processing in which the bit with the chisel head penetrates deeper into the rock. The jamming in the material takes place in particular on the approximately perpendicular to the cutting edge of the chisel oriented side surfaces of the chisel head.
- a chisel which has a shaft with a device for releasable connection with a tool holder of a striking hand tool.
- This has a clamping shank and a chisel head, wherein the chisel head has a main cutting edge transverse to a longitudinal axis of the bit, a front and a rear striking surface and at least one side surface connecting the striking surfaces, wherein the side surface is formed as a side cutting edge and wherein the side cutting edges have cutting surfaces.
- the invention has the object zugunde to develop a flat chisel, which has a low tendency to jamming in the rock to be processed.
- the flat chisel according to the invention has at least one lateral surface designed as a side cutting edge.
- a side cutting side surface of the chisel is able to edit the material located in the area of the side surface.
- a jamming of the bit head in the rock in the region of the side surface is prevented because the side surface formed as a side cutting edge brings the material to be machined in the form.
- material that brakes the chisel head in the area of the side surface crushed as the chisel penetrates and cleared out of the way.
- a flat chisel is to be understood as meaning a chisel with an elongate cutting edge which is substantially perpendicular to a longitudinal axis of the bit or transverse to a direction of impact.
- the subject invention is at least one side cutting in the main cutting over. As a result, a cut-free area is avoided, which can lead to jamming of the bit with the material to be processed. In addition, the blades stabilize each other.
- An advantageous embodiment of the subject invention provides to arrange the cutting edges of the main cutting edge and the side cutting in a common plane. As a result, a transverse load on the cutting edges or cutting edges when advancing or pulling out the flat chisel from the material is largely avoided.
- a chisel 1 is shown, which is designed as a flat chisel 2 and essentially composed of a chisel head 3, a chisel shank 4 and a clamping shank 5 or insertion end.
- the clamping shaft 5 it is a so-called SDS-Plus-clamping shaft 6, which is used for coupling to power driven drill and chisel hammers.
- Such chisels are also referred to as Einsteckm facedel.
- a main cutting edge 7 is arranged perpendicular to a longitudinal cutting axis x, which passes over a front cutting surface 8 and a rear cutting surface 9 into a front striking surface 10 and a rear striking surface 11.
- Side surfaces 12, 13 of the chisel head 3 are formed as side cutting edges 14, 15, which pass over cutting surfaces 16 into the striking surfaces 10, 11. Cutting edges 17,18 of the side cutting edges 14, 15 extend approximately parallel to the central longitudinal axis x of the flat chisel 2. In a transition region 19, the chisel head 3 merges into the chisel shaft 4.
- FIG. 2 shows a partial view of a second chisel 1 and second flat chisel 2, of which only a chisel head 3 and a part of the chisel shank 4 is shown.
- a main cutting edge 7 with cutting surfaces 8, 9 and a cutting edge 20 are associated with two side cutting edges 14, 15, which have cutting surfaces 16. These widen in the direction of a clamping shaft, not shown.
- Cutting edges 17, 18 of the side cutting edges 14, 15 extend approximately at a right angle to the cutting edge 20 of the main cutting edge 7.
- a front face 10, in which the cutting surfaces 8 and 16 merge, extends in a transition region 19 to the drill collar 4.
- the main cutting edge 7 goes at separating edges 21 in the side cutting edges 14, 15 via.
- FIG. 3 shows a plan view of the in FIG. 2 shown flat chisel 2.
- the cutting surfaces 8, 9 can be seen, which converge in the main cutting edge 20.
- the main cutting edge 20 and the side cutting edges 14, 15 extend in a common plane E, which is perpendicular to the plane of the drawing.
- FIG. 4 shows a side view from the right to the in FIG. 2
- the main cutting edge 7 forms, viewed from the side or in cross section, a gable 22 whose gable surfaces 23 are formed by the cutting surfaces 8, 9.
- FIG. 5 shows a plan view of the in FIG. 4 Also the side cutting 14, 15 form in cross-section or seen from the side with their cutting surfaces 16 gable 22, wherein the cutting surfaces 16 also gable surfaces 23 form.
- FIG. 6 shows a main cutting edge 7 of a flat chisel not shown 2.
- the main cutting edge 7 is seen in cross-section or viewed from the side as a ramp 24 and has a cutting axis parallel to a longitudinal axis x cutting surface 9 and an obliquely extending to this side surface 8.
- the invention is not limited to illustrated or described embodiments. Rather, it includes developments of the invention within the scope of the patent claims. In particular, it is also envisaged to arrange the cutting edges of the side cutting edges at an angle deviating from 90 ° to the cutting edge of the main cutting edge.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Die Erfindung betrifft einen Flachmeißel und zwar einen Einsteckmeißel für kraftangetriebene Bohr- und Meißelhämmer zur Bearbeitung von Gestein nach dem Oberbegriff des Anspruchs 1.The invention relates to a flat chisel and that a Einsteckmeißel for power driven drill and chipping hammers for processing of rock according to the preamble of
Derartige Flachmeißel kommen bei der Bearbeitung von Gestein, insbesondere Mauergestein zu Einsatz, um beispielsweise Durchbrüche, Kanäle und Schlitze herzustellen. Aus dem Stand der Technik sind Flachmeißel bekannt, deren Hauptschneide quer zu einer Meißellängsachse angeordnet ist. Nachteilig an derartigen Meißeln ist, dass diese insbesondere bei einer Bearbeitung, bei welcher der Meißel mit dem Meißelkopf tiefer in das Gestein eindringt, zum Verklemmen im Material neigen. Das Verklemmen im Material erfolgt insbesondere an den etwa senkrecht zur Schneide des Meißels orientierten Seitenflächen des Meißelkopfes.Such flat chisels are used in the processing of rocks, in particular wall rocks used to produce, for example, openings, channels and slots. Flat chisels are known from the prior art whose main cutting edge is arranged transversely to a longitudinal axis of the chisel. A disadvantage of such chisels is that they tend to jam in the material, especially in a processing in which the bit with the chisel head penetrates deeper into the rock. The jamming in the material takes place in particular on the approximately perpendicular to the cutting edge of the chisel oriented side surfaces of the chisel head.
Aus der
Der Erfindung liegt die Aufgabe zugunde, einen Flachmeißel zu entwickeln, der eine geringe Neigung zum Verklemmen im zu bearbeitenden Gestein aufweist.The invention has the object zugunde to develop a flat chisel, which has a low tendency to jamming in the rock to be processed.
Die Aufgabe wird in Verbindung mit dem Oberbegriff des Anspruchs 1 erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen angegeben. Der erfindungsgemäße Flachmeißel weist wenigstens eine als Seitenschneide ausgebildete Seitenfläche aus. Durch die als Seitenschneide ausgestaltete Seitenfläche ist der Meißel in der Lage, das im Bereich der Seitenfläche befindliche Material zu bearbeiten. Durch diese Bearbeitung wird einem Verklemmen des Meißelkopfes im Gestein im Bereich der Seitenfläche vorgebeugt, da die als Seitenschneide ausgebildete Seitenfläche das zu bearbeitende Material in Form bringt. Somit wird Material, das den Meißelkopf im Bereich der Seitenfläche bremst, schon beim Eindringen des Meißels zerkleinert und aus dem Weg geräumt.The object is achieved in conjunction with the preamble of
Unter einem Flachmeißel ist ein Meißel mit einer länglichen Schneidkante zu verstehen, die im Vüesentlichen senkrecht zu einer Meißellängsachse bzw. quer zu einer Schlagrichtung verläuft.A flat chisel is to be understood as meaning a chisel with an elongate cutting edge which is substantially perpendicular to a longitudinal axis of the bit or transverse to a direction of impact.
Gemäß einer vorteilhaften Ausbildung des Erfindungsgegenstandes geht wenigstens eine Seitenschneide in die Hauptschneide über. Hierdurch ist ein schneidenfreier Bereich vermieden, an dem es zu Verklemmungen des Meißels mit dem zu bearbeitenden Material kommen kann. Außerdem stabilisieren sich die Schneiden gegenseitig.According to an advantageous embodiment of the subject invention is at least one side cutting in the main cutting over. As a result, a cut-free area is avoided, which can lead to jamming of the bit with the material to be processed. In addition, the blades stabilize each other.
Eine vorteilhafte Ausbildung des Erfindungsgegenstandes sieht vor, die Schneidkanten der Hauptschneide und der Seitenschneide in einer gemeinsamen Ebene anzuordnen. Hierdurch ist eine Querbelastung der Schneiden bzw. Schneidkanten beim Vordringen bzw. Herausziehen des Flachmeißels aus dem Material weitgehend vermieden.An advantageous embodiment of the subject invention provides to arrange the cutting edges of the main cutting edge and the side cutting in a common plane. As a result, a transverse load on the cutting edges or cutting edges when advancing or pulling out the flat chisel from the material is largely avoided.
Durch eine im Querschnitt giebelförmige Ausführung der Hauptschneide und/oder Seitenschneide ist der Flachmeißel für die verschiedensten Anwendungsfälle und Ansetzwinkel geeignet. Mittels einer rampenförmigen Ausbildung der Hauptschneide und/oder Seitenschneide ist es möglich, besonders spitze Schneiden zu realisieren, die ein senkrechtes Eindringen in das zu bearbeitende Material begünstigen. Weiterhin erlauben derartig ausgebildete Schneiden ein besonders flaches Ansetzen des Meißels an das zu bearbeitende Material.By a gable-shaped in cross-section execution of the main cutting edge and / or side cutting the flat chisel for a variety of applications and attachment angle is suitable. By means of a ramp-shaped design of the main cutting edge and / or side cutting edge, it is possible To realize particularly sharp cutting edges, which promote a vertical penetration into the material to be machined. Furthermore, such trained cutting allow a particularly flat attachment of the bit to the material to be processed.
Weitere Einzelheiten der Erfindung werden in der Zeichnung anhand von schematisch dargestellten Ausführungsbeispielen beschrieben. Bei den Figuren handelt es sich teilweise um CAD-Darstellungen, in welchen die Meißel durch Gitternetzlinien dargestellt sind. Hierbei werden auch verdeckte Kanten als durchgezogene Linien dargestellt.Further details of the invention are described in the drawing with reference to schematically illustrated embodiments. The figures are partly CAD representations in which the chisels are represented by grid lines. Here also hidden edges are shown as solid lines.
Hierbei zeigt:
Figur 1- eine Seitenansicht eines Meißels,
Figur 2- eine Teilansicht eines zweiten Meißels,
Figur 3- eine Draufsicht auf den in
dargestellten Meißel,Figur 2 - Figur 4
- eine Seitenansicht von rechts des in
dargestellten Meißel,Figur 2 Figur 5- eine Draufsicht auf den in
Figur 4 dargestellten Meißel und Figur 6- eine Seitenansicht einer rampenförmigen Schneide.
- FIG. 1
- a side view of a chisel,
- FIG. 2
- a partial view of a second bit,
- FIG. 3
- a top view of the in
FIG. 2 illustrated chisels, - FIG. 4
- a side view from the right of in
FIG. 2 illustrated chisels, - FIG. 5
- a top view of the in
FIG. 4 illustrated chisel and - FIG. 6
- a side view of a ramp-shaped cutting edge.
In
Die Erfindung ist nicht auf dargestellte oder beschriebene Ausführungsbeispiele beschränkt. Sie umfasst vielmehr Weiterbildungen der Erfindung im Rahmen der Schutzrechtsansprüche. Insbesondere ist es auch vorgesehen, die Schneidkanten der Seitenschneiden in einem von 90° abweichenden Winkel zur Schneidkante der Hauptschneide anzuordnen.The invention is not limited to illustrated or described embodiments. Rather, it includes developments of the invention within the scope of the patent claims. In particular, it is also envisaged to arrange the cutting edges of the side cutting edges at an angle deviating from 90 ° to the cutting edge of the main cutting edge.
- 11
- Meißelchisel
- 22
- Flachmeißelchisel
- 33
- Meißelkopfchisel head
- 44
- Meißelschaftdrill collar
- 55
- Einspannschaftclamping
- 66
- SDS-Plus-EinspannschaftSDS-plus shank
- 77
- Hauptschneidemain cutting edge
- 88th
- vordere Schneidflächefront cutting surface
- 99
- hintere Schneidflächerear cutting surface
- 1010
- vordere Schlagflächefront clubface
- 1111
- hintere Schlagflächerear clubface
- 1212
- rechte Seitenflächeright side surface
- 1313
- linke Seitenflächeleft side surface
- 1414
- rechte Seitenschneideright side cutting edge
- 1515
- linke Seitenschneideleft side cutting edge
- 1616
- Schneidfläche von 14, 15Cutting surface of 14, 15
- 1717
- Schneidkantecutting edge
- 1818
- Schneidkantecutting edge
- 1919
- ÜbergangsbereichTransition area
- 2020
- Schneidkantecutting edge
- 2121
- Trennkanteseparating edge
- 2222
- Giebelgable
- 2323
- Giebelflächegable area
- 2424
- Ramperamp
Claims (3)
- Insertable chisel (2) for power-operated rotary hammers and rotary demolition hammers for working masonry, comprising a clamping shank (5) and a chisel head (3) which has a main lip (7) disposed transversely to a chisel longitudinal axis (x), a front and a rear impact face (10, 11) and at least one side face (12, 13) connecting the impact faces (10, 11), wherein the side face (12, 13) is designed as a side lip (14, 15), wherein the side lips (14, 15) have cutting faces (16), characterized in that the cutting faces (16) widen in the direction of the clamping shank (5) and in that the side lips (14, 15), as viewed in cross section or from the side, form a gable (22) with their cutting faces (16).
- Insertable chisel according to Claim 1, characterized in that at least one side lip (14, 15) merges into the main lip (7).
- Insertable chisel according to either of the preceding claims, characterized in that the main lip (7) and the side lip (14, 15) have cutting edges (20, 17, 18) which lie in a common plane (E).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10133946 | 2001-07-17 | ||
DE10133946A DE10133946B4 (en) | 2001-07-17 | 2001-07-17 | flat chisel |
PCT/EP2002/007336 WO2003008155A1 (en) | 2001-07-17 | 2002-07-03 | Flat chisel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1414623A1 EP1414623A1 (en) | 2004-05-06 |
EP1414623B1 true EP1414623B1 (en) | 2011-10-05 |
Family
ID=7691568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02764619A Expired - Lifetime EP1414623B1 (en) | 2001-07-17 | 2002-07-03 | Flat chisel |
Country Status (4)
Country | Link |
---|---|
US (1) | US7363922B2 (en) |
EP (1) | EP1414623B1 (en) |
DE (1) | DE10133946B4 (en) |
WO (1) | WO2003008155A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0520911D0 (en) * | 2005-10-14 | 2005-11-23 | C4 Carbides Plc | Power tool attachments |
EP2502710B1 (en) | 2011-03-22 | 2020-04-22 | Black & Decker Inc. | Chisels |
US8769827B2 (en) | 2011-04-11 | 2014-07-08 | Stanley Black & Decker, Inc. | Chisel blade with sides configured for cutting |
US9333564B2 (en) | 2013-03-15 | 2016-05-10 | Black & Decker Inc. | Drill bit |
USD734792S1 (en) | 2013-03-15 | 2015-07-21 | Black & Decker Inc. | Drill bit |
USD737875S1 (en) | 2013-03-15 | 2015-09-01 | Black & Decker Inc. | Drill bit |
USD789994S1 (en) * | 2015-08-05 | 2017-06-20 | Nordco Inc. | Tamper tool |
USD856774S1 (en) * | 2017-07-31 | 2019-08-20 | Thomas N. Kuperus | Axe bar |
USD923447S1 (en) * | 2019-05-06 | 2021-06-29 | Milwaukee Electric Tool Corporation | Chisel |
USD922842S1 (en) * | 2019-05-06 | 2021-06-22 | Milwaukee Electric Tool Corporation | Chisel |
USD922841S1 (en) * | 2019-05-06 | 2021-06-22 | Milwaukee Electric Tool Corporation | Chisel |
USD921465S1 (en) * | 2019-05-06 | 2021-06-08 | Milwaukee Electric Tool Corporation | Mortar knife |
USD922840S1 (en) * | 2019-05-06 | 2021-06-22 | Milwaukee Electric Tool Corporation | Chisel |
JP6715422B1 (en) * | 2019-07-30 | 2020-07-01 | 株式会社光岡組 | Hammer with a chisel |
USD1016590S1 (en) * | 2022-08-29 | 2024-03-05 | Yan Feng | Micro air chipping tool scraper |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735179A (en) * | 1956-02-21 | stanton | ||
US1350241A (en) * | 1919-06-09 | 1920-08-17 | William T Routh | Cold-chisel |
US1452037A (en) * | 1920-09-15 | 1923-04-17 | Wiliam J Gleasner | Asphalt-cutting tool |
US1742726A (en) * | 1928-05-31 | 1930-01-07 | Pfister John Rudolf | Impregnator chisel for wood |
GB606543A (en) * | 1946-02-13 | 1948-08-16 | Frederick Leslie Ballard | Improvements in chisels for sculptors, stonemasons and others working in stone |
GB634743A (en) * | 1947-07-28 | 1950-03-29 | Murex Ltd | Improvements in and relating to drills |
GB934309A (en) | 1961-12-02 | 1963-08-14 | Ward & Payne Ltd | Improvements in or relating to joiners' chisels and gouges |
US4089562A (en) * | 1977-04-27 | 1978-05-16 | Baumeister Frederick F | Cutter for asphalt paving |
FR2431351A1 (en) | 1978-07-17 | 1980-02-15 | Brunon Louis | Broad blade woodworking chisel - has integral handle with flat end for hammering, and mono-bevelled cutting edge and sides |
DE8117222U1 (en) * | 1981-06-11 | 1982-12-30 | Schmitz, Paul, 5630 Remscheid | "UNIVERSAL DRILL" |
DE8225658U1 (en) * | 1982-09-11 | 1984-02-23 | Robert Bosch Gmbh, 7000 Stuttgart | CHISEL |
DE8320045U1 (en) * | 1983-07-12 | 1983-11-17 | Wengeler & Kalthoff Hammerwerke GmbH & Co KG, 4320 Hattingen | STEEL SPADE FOR BLOW HAMMER |
DE9100999U1 (en) * | 1991-01-29 | 1991-04-18 | Albert Berner GmbH & Co KG, 7118 Künzelsau | Chisel |
JPH05318987A (en) * | 1992-05-25 | 1993-12-03 | Union Seiki:Kk | Chisel |
DE19757271A1 (en) * | 1997-12-22 | 1999-06-24 | Hilti Ag | Tool |
-
2001
- 2001-07-17 DE DE10133946A patent/DE10133946B4/en not_active Expired - Lifetime
-
2002
- 2002-07-03 WO PCT/EP2002/007336 patent/WO2003008155A1/en active Application Filing
- 2002-07-03 EP EP02764619A patent/EP1414623B1/en not_active Expired - Lifetime
- 2002-07-03 US US10/381,340 patent/US7363922B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2003008155A1 (en) | 2003-01-30 |
DE10133946A1 (en) | 2003-02-06 |
EP1414623A1 (en) | 2004-05-06 |
DE10133946B4 (en) | 2011-01-20 |
US20040010921A1 (en) | 2004-01-22 |
US7363922B2 (en) | 2008-04-29 |
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