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EP1414623A1 - Burin plat - Google Patents

Burin plat

Info

Publication number
EP1414623A1
EP1414623A1 EP02764619A EP02764619A EP1414623A1 EP 1414623 A1 EP1414623 A1 EP 1414623A1 EP 02764619 A EP02764619 A EP 02764619A EP 02764619 A EP02764619 A EP 02764619A EP 1414623 A1 EP1414623 A1 EP 1414623A1
Authority
EP
European Patent Office
Prior art keywords
chisel
cutting edge
flat
cutting
flat chisel
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.)
Granted
Application number
EP02764619A
Other languages
German (de)
English (en)
Other versions
EP1414623B1 (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
Hawera Probst 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, Hawera Probst 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

Links

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 according to the preamble of claim 1.
  • Flat chisels of this type are used in the processing of rock, in particular masonry rock, in order, for example, to produce openings, channels and slots.
  • Flat chisels are known from the prior art, the main cutting edge of which is arranged transversely to a longitudinal axis of the chisel.
  • a disadvantage of such chisels is that they tend to jam in the material, in particular during processing in which the chisel with the chisel head penetrates deeper into the rock. The jamming in the material takes place in particular on the side surfaces of the bit head oriented approximately perpendicular to the cutting edge of the bit.
  • the invention has for its object to develop a flat chisel that has a low tendency to jam in the rock to be processed.
  • the flat chisel according to the invention has at least one side surface designed as a side cutting edge.
  • the side surface designed as a side cutting edge enables the chisel to process the material located in the region of the side surface. This processing prevents jamming of the chisel head in the rock in the area of the side surface, since the side surface designed as a side cutting edge brings the material to be processed into shape. Material that brakes the chisel head in the area of the side surface is shredded as soon as the chisel penetrates and cleared out of the way.
  • a flat chisel is to be understood as a chisel with an elongated cutting edge that runs essentially perpendicular to a longitudinal axis of the chisel or transversely to a direction of impact.
  • the subject of the invention passes at least one side cutting edge into the main cutting edge. This avoids a cutting-free area where the chisel can become jammed with the material to be processed.
  • the cutting edges also stabilize each other.
  • An advantageous embodiment of the subject matter of the invention provides for the cutting edges of the main cutting edge and the side cutting edge to be arranged in a common plane. As a result, a transverse load on the cutting edges or cutting edges when the flat chisel penetrates or is pulled out of the material is largely avoided.
  • the flat chisel is suitable for a wide variety of applications and angles.
  • a ramp-shaped configuration of the main cutting edge and / or side cutting edge it is possible to to realize particularly pointed cutting edges, which promote vertical penetration into the material to be processed.
  • cutting edges designed in this way allow the chisel to be placed particularly flat against the material to be processed.
  • FIG. 1 shows a side view of a chisel
  • FIG. 2 shows a partial view of a second chisel
  • FIG. 3 shows a top view of the chisel shown in FIG. 2,
  • FIG. 4 shows a side view from the right of the chisel shown in FIG. 2,
  • Figure 5 is a plan view of the chisel and shown in Figure 4
  • Figure 6 is a side view of a ramp-shaped cutting edge.
  • a chisel 1 which is designed as a flat chisel 2 and essentially consists 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 shank 6, which is used for coupling to power-driven rotary and chisel hammers.
  • Such chisels are also referred to as insert chisels.
  • a main cutting edge 7 is arranged on the chisel head 3 perpendicular to a longitudinal axis x of the chisel and merges into a front striking surface 10 and a rear striking surface 11 via a front cutting surface 8 and a rear cutting surface 9.
  • Side surfaces 12, 13 of the chisel head 3 are designed as side cutting edges 14, 15, which merge into the striking surfaces 10, 11 via cutting surfaces 16. Cutting edges 17, 18 of the side cutting edges 14, 15 run 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 shank 4.
  • FIG. 2 shows a partial view of a second chisel 1 or second flat chisel 2, of which only one chisel head 3 and part of the chisel shaft 4 are shown.
  • a main cutting edge 7 with cutting surfaces 8, 9 and a cutting edge 20 are assigned two side cutting edges 14, 15 which have cutting surfaces 16. These widen in the direction of a clamping shank, not shown.
  • Cutting edges 17, 18 of the side cutting edges 14, 15 run approximately at a right angle to the cutting edge 20 of the main cutting edge 7.
  • a front striking surface 10, into which the cutting surfaces 8 and 16 merge, extends in a transition region 19 to the chisel shank 4.
  • the main cutting edge 7 goes at separating edges 21 in the side cutting edges 14, 15.
  • FIG. 3 shows a plan view of the flat chisel 2 shown in FIG. 2.
  • the cutting surfaces 8, 9 can be seen here, which converge in the main cutting edge 20.
  • the main cutting edge 20 and the side cutting edges 14, 15 run in a common plane E, which is perpendicular to the plane of the drawing.
  • FIG. 4 shows a side view from the right of the flat chisel 2 shown in FIG. 2.
  • the main cutting edge 7 forms a gable 22 seen from the side or in cross section, the gable surfaces 23 of which are formed by the cutting surfaces 8, 9.
  • FIG. 5 shows a top view of the flat chisel 2 shown in FIG. 4.
  • the side cutters 14, 15 also form gables 22 with their cutting surfaces 16 in cross section or viewed from the side, the cutting surfaces 16 likewise forming gable surfaces 23.
  • FIG. 6 shows a main cutting edge 7 of a flat chisel 2, which is not shown in detail.
  • the main cutting edge 7 is designed in cross section or seen from the side as a ramp 24 and has a cutting surface 9 running parallel to a longitudinal axis x of the chisel and a side surface 8 running obliquely to this.
  • the invention is not restricted to the exemplary embodiments shown or described. Rather, it encompasses further developments of the invention within the scope of the property right claims.
  • the cutting edges of the side cutting edges are arranged at an angle to the cutting edge of the main cutting edge that deviates from 90 °.

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).
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 true EP1414623A1 (fr) 2004-05-06
EP1414623B1 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03008155A1 *

Also Published As

Publication number Publication date
US7363922B2 (en) 2008-04-29
WO2003008155A1 (fr) 2003-01-30
EP1414623B1 (fr) 2011-10-05
US20040010921A1 (en) 2004-01-22
DE10133946A1 (de) 2003-02-06
DE10133946B4 (de) 2011-01-20

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