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EP1414623B1 - Burin plat - Google Patents

Burin plat Download PDF

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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
Application number
EP02764619A
Other languages
German (de)
English (en)
Other versions
EP1414623A1 (fr
Inventor
Marco Lang
Stefano Monzani
Franc Koljaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Aresi SpA
Original Assignee
Robert Bosch GmbH
Aresi SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH, Aresi SpA filed Critical Robert Bosch GmbH
Publication of EP1414623A1 publication Critical patent/EP1414623A1/fr
Application granted granted Critical
Publication of EP1414623B1 publication Critical patent/EP1414623B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02—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

L'invention concerne un burin plat (2), notamment un burin à queue destiné à des marteaux perforateurs ou burineurs à moteur pour le travail de la roche. Le burin plat selon l'invention comporte une tête de burin (3) composée d'un tranchant principal (7) s'étendant perpendiculairement à un axe longitudinal de burin (x), de surfaces de frappe avant et arrière (10, 11), et d'au moins une surface latérale (12, 13) reliant les surfaces de frappe (10, 11). Selon l'invention, une des surfaces latérales (12, 13) est conçue en tant que tranchant latéral (14, 15).

Claims (3)

  1. Burin insérable (2) pour marteaux perforateurs et marteaux-piqueurs à entraînement par force, pour le traitement de roche, comprenant une tige de serrage (5), une tête de burin (3), qui présente une arête de coupe principale (7) transversale à un axe longitudinal (x) du burin, une surface de frappe avant et une surface de frappe arrière (10, 11) et au moins une surface latérale (12, 13) reliant les surfaces de frappe (10, 11), la surface latérale (12, 13) étant réalisée sous forme d'arête de coupe latérale (14, 15), les arêtes de coupe latérales (14, 15) présentant des surfaces de coupe (16), caractérisé en ce que les surfaces de coupe (16) s'élargissent dans la direction de la tige de serrage (5) et en ce que les arêtes de coupe latérales (14, 15) forment avec leurs surfaces de coupe (16) un pignon (22), vu en section transversale ou depuis le côté.
  2. Burin insérable selon la revendication 1, caractérisé en ce qu'au moins une arête de coupe latérale (14, 15) se prolonge par l'arête de coupe principale (7).
  3. Burin insérable selon l'une quelconque des revendications précédentes, caractérisé en ce que l'arête de coupe principale (7) et les arêtes de coupe latérales (14, 15) présentent des bords de coupe (20, 17, 18) qui se situent dans un plan commun (E).
EP02764619A 2001-07-17 2002-07-03 Burin plat Expired - Lifetime EP1414623B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133946 2001-07-17
DE10133946A DE10133946B4 (de) 2001-07-17 2001-07-17 Flachmeißel
PCT/EP2002/007336 WO2003008155A1 (fr) 2001-07-17 2002-07-03 Burin plat

Publications (2)

Publication Number Publication Date
EP1414623A1 EP1414623A1 (fr) 2004-05-06
EP1414623B1 true EP1414623B1 (fr) 2011-10-05

Family

ID=7691568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02764619A Expired - Lifetime EP1414623B1 (fr) 2001-07-17 2002-07-03 Burin plat

Country Status (4)

Country Link
US (1) US7363922B2 (fr)
EP (1) EP1414623B1 (fr)
DE (1) DE10133946B4 (fr)
WO (1) WO2003008155A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD525840S1 (en) * 2004-12-23 2006-08-01 Bruce Howard J Offset chisel
GB0520911D0 (en) * 2005-10-14 2005-11-23 C4 Carbides Plc Power tool attachments
USD617179S1 (en) 2009-03-18 2010-06-08 Vanelverdinghe Jeffry L Canopy top fitting
USD617633S1 (en) 2009-03-18 2010-06-15 Vanelverdinghe Jeffry L Canopy slide fitting
EP2502709B1 (fr) 2011-03-22 2017-02-01 Black & Decker Inc. Ciseaux
US8769827B2 (en) 2011-04-11 2014-07-08 Stanley Black & Decker, Inc. Chisel blade with sides configured for cutting
USD689755S1 (en) 2011-09-23 2013-09-17 Black & Decker Inc. Chisel having a contrast of color
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
USD734792S1 (en) 2013-03-15 2015-07-21 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
USD922841S1 (en) * 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922840S1 (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
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
JP6715422B1 (ja) * 2019-07-30 2020-07-01 株式会社光岡組 斫りノミ付きハンマー
USD1016590S1 (en) * 2022-08-29 2024-03-05 Yan Feng Micro air chipping tool scraper
USD1045551S1 (en) * 2023-01-06 2024-10-08 Milwaukee Electric Tool Corporation Chisel
USD1046579S1 (en) * 2023-01-06 2024-10-15 Milwaukee Electric Tool Corporation Chisel

Family Cites Families (15)

* Cited by examiner, † Cited by third party
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 (fr) * 1978-07-17 1980-02-15 Brunon Louis Burin pour materiaux tendres, notamment le bois
DE8117222U1 (de) * 1981-06-11 1982-12-30 Schmitz, Paul, 5630 Remscheid "universalbohrer"
DE8225658U1 (de) * 1982-09-11 1984-02-23 Robert Bosch Gmbh, 7000 Stuttgart Meissel
DE8320045U1 (de) * 1983-07-12 1983-11-17 Wengeler & Kalthoff Hammerwerke GmbH & Co KG, 4320 Hattingen Stahlspaten fuer schlaghaemmer
DE9100999U1 (de) * 1991-01-29 1991-04-18 Albert Berner GmbH & Co KG, 7118 Künzelsau Stechbeitel
JPH05318987A (ja) * 1992-05-25 1993-12-03 Union Seiki:Kk 彫刻刃
DE19757271A1 (de) * 1997-12-22 1999-06-24 Hilti Ag Werkzeug

Also Published As

Publication number Publication date
US7363922B2 (en) 2008-04-29
WO2003008155A1 (fr) 2003-01-30
US20040010921A1 (en) 2004-01-22
DE10133946A1 (de) 2003-02-06
DE10133946B4 (de) 2011-01-20
EP1414623A1 (fr) 2004-05-06

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