EP0654580B1 - Foret héliocoidal - Google Patents

Foret héliocoidal Download PDF

Info

Publication number
EP0654580B1
EP0654580B1 EP94810562A EP94810562A EP0654580B1 EP 0654580 B1 EP0654580 B1 EP 0654580B1 EP 94810562 A EP94810562 A EP 94810562A EP 94810562 A EP94810562 A EP 94810562A EP 0654580 B1 EP0654580 B1 EP 0654580B1
Authority
EP
European Patent Office
Prior art keywords
drillhead
rock drill
drill
drill according
drillshaft
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
EP94810562A
Other languages
German (de)
English (en)
Other versions
EP0654580A2 (fr
EP0654580A3 (fr
Inventor
Axel Neukirchen
Rainer Batliner
Maximilian Stöck
Ralf Baumann
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0654580A2 publication Critical patent/EP0654580A2/fr
Publication of EP0654580A3 publication Critical patent/EP0654580A3/fr
Application granted granted Critical
Publication of EP0654580B1 publication Critical patent/EP0654580B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • 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
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry

Definitions

  • the invention relates to a rock drill with a drill head consisting entirely of hard metal, which is connected to a flute having a drill shank.
  • rock drills wear extremely quickly in the area of the drill tip when drilling in hard rock and at high rotational speeds. For this reason, rock drills are equipped with hard metal, whereby hard metal in the present case means sintered or melted carbides, silicides, borides or their alloys.
  • Such a rock drill is known from DE-AS 20 08 825.
  • This rock drill has an elliptical drill head made entirely of hard metal and soldered to the drill shank, which additionally interacts with a mortise with the drill shank.
  • the tenoning is formed by a peg-shaped extension of the drill head, which is soldered into a bore in the drill shank that is appropriately dimensioned in diameter and depth.
  • This known rock drill has the property that the continuous removal of the drill material takes place over the space formed between the smallest diameter of the elliptical drill head and the inner wall of the borehole. Each of these two gaps becomes smaller as it approaches the largest diameter of the drill head. Drilled material, which is transported through these gaps during the machining process, can jam in two diagonally opposite, narrowing gaps, so that premature wear or damage to the drill head occurs in the circumferential area of the largest diameter. In addition to the premature mechanical wear of the drill head causes between the peripheral area Drill head and the borehole wall jammed an enlargement of the borehole to be produced and a rough borehole wall.
  • the invention has for its object to provide a rock drill with a hard metal drill head, which is characterized by high drilling performance, long service life and good drilling material removal.
  • this is achieved in that the cross section of the drill head lying between the end face connected to the drill shaft and the free end face from the remaining cross section between two substantially circular section-like, diametrically opposed and extending along the drill axis in the longitudinal direction of the drill head, which serve to pass the drill material is formed, wherein the projections of the recesses viewed in the axial direction coincide with that region of the flutes that adjoin the end face connected to the drill shank and wherein a main cutting edge runs essentially roof-shaped and along one of the diagonals of the cross section.
  • the cross section of the drill head which is perpendicular to the drill axis, is essentially rectangular.
  • the main cutting edge extends along a diagonal of the rectangular cross section. This main cutting edge runs on the end face of the drill head in such a way that, viewed in the circumferential direction of the drill head, the cutting edge of the main cutting edge is closer to one of the recesses than the corresponding free surface of the main cutting edge to a further recess.
  • the area of the drill head that faces away from the cutting edge and faces the free surface serves to support the main cutting edge during a machining process.
  • the production or comminution of drillings can additionally be improved in that drillings removed by the main cutting edge are comminuted with the aid of further additional cutting edges.
  • the drill head preferably has at least two additional cutting edges, which are arranged to run essentially parallel to the further diagonal.
  • the drill material removed from the main cutting edge is thrown into the peripheral area of the drill head.
  • the additional cutting edges are advantageously arranged rotationally symmetrically in the outer end area of the drill head. Due to the rotationally symmetrical arrangement of the additional cutting edges, the necessary, smooth running of the rock drill is also achieved.
  • the main cutting edge In addition to the main removal of the drilling material, the main cutting edge also serves to center the rock drill during the machining process.
  • the main cutting edge is roof-shaped, with the apex forming that area of the drill head which, viewed in the longitudinal direction of the rock drill, has the greatest distance from the drill shank.
  • the additional cutting edges can also serve to remove drilling material in addition to crushing the drilling material removed from the main cutting edge. It is therefore expedient if the main cutting edge and the additional cutting edges lie essentially on the same envelope curve. If only the cutting of the drill material is required of the additional cutting edges, the additional cutting edges can be set back in relation to the envelope curve formed by the main cutting edge.
  • the good removal of drilling material is essentially dependent on the diameter of the drill head, ie the larger the diameter of the drill head, the smaller the recesses can be.
  • the cross-sectional area of the recesses is preferably 0.6 to 0.9 times the cross-section of the drilling head.
  • the drill head is connected to the drill shank by welding or soldering with the interposition of a solder.
  • the end face of the drill head opposite the main cutting edge is expediently designed to be flat. This makes the soldering process easier, in particular, since the liquid solder can be distributed evenly on the horizontally aligned flat end.
  • solder seam that is subjected to tensile and compressive stress perpendicular to the direction of the solder seam fails brittle.
  • stress caused by shear leads to elastic and plastic behavior of the solder seam.
  • an elastic and plastic behavior of the solder seam is sought.
  • the solder seam plane is essentially oblique to the longitudinal axis of the rock drill. So that solder seam planes running essentially at an angle to the longitudinal axis of the rock drill can be produced, the end face of the drill head connected to the drill shank has a recess which interacts with a correspondingly configured end face of the drill shank and has at least two surface lines. The surface lines start from the mouth area of the depression and taper to a common center lying on the longitudinal axis of the drill head.
  • the depression of the drill head is preferably conical, roof-shaped or dome-shaped.
  • a roof-shaped depression has two surface lines, which taper from the mouth area to a common center lying on the longitudinal axis of the drill head.
  • Conical or dome-shaped depressions have a large number of surface lines on their circumference, which taper from the mouth area to a common center lying on the longitudinal axis of the drill head.
  • the end face of the drill head used for connection to the drill shank can advantageously have rotary driving surfaces.
  • Such rotary driving surfaces can be formed, for example, by grooves that extend at least partially over the diameter of the drill head or centrally arranged, longitudinally extending depressions with a polygonal cross section.
  • the main cutting edge 4 is roof-shaped and the apex S1 of the main cutting edge 4 is the area which is axially the most distant from the drill shank 1.
  • the main cutting edge 4 has a cutting edge 4a and a free surface 4b, the cutting edge 4a of the main cutting edge 4 being closer to one of the recesses 3a when viewed in the peripheral region of the drilling head 2 than the corresponding free surface 4b of the main cutting edge 4 of a further recess 3b.
  • the rectangular cross section of the drill head 2 has a further diagonal D2, along which at least some additional cutting edges 5, 6 are arranged, which are also roof-shaped and extend from the outer circumference of the drill head 2 towards the center of the drill head 2.
  • FIG 3 shows the distance A between the main cutting edge 4 and the additional cutting edges 5, 6, which are set back with respect to the envelope curve formed by the main cutting edge 4 are arranged.
  • the outside diameter of the main cutting edge 4 is larger than the outside diameter of the additional cutting edges 5, 6.
  • FIG. 4 shows the drill head 2, which has a main cutting edge 4 and two additional cutting edges 5, an additional cutting edge not being visible.
  • the main cutting edge 4 is roof-shaped and has an apex S1.
  • the end face 10 of the drill head 2 is provided with a recess 8 which extends at right angles to the longitudinal axis of the drill head 2.
  • the depression 8 has a rectangular cross-sectional area and rotary driving surfaces 7.
  • the drilling head 12 shown in FIG. 5 has a main cutting edge 14 and two additional cutting edges 15, an additional cutting edge not being visible.
  • the main cutting edge 14 is roof-shaped and has an apex S2.
  • the end face 16 of the drill head 12 which can be connected to a drill shank (not shown) has a roof-shaped depression 17.
  • FIG. 6 shows a drilling head 22 which has a main cutting edge 24 and two additional cutting edges 25, an additional cutting edge not being visible.
  • the main cutting edge 24 is roof-shaped and has an apex S3.
  • the end face 28 of the illustrated drill head 22 has a recess 27 which is dome-shaped.
  • the drill head 32 shown in FIG. 7 has a main cutting edge 34 and two additional cutting edges 35, an additional cutting edge not being visible.
  • the main cutting edge 34 is roof-shaped and has an apex S4.
  • the end face of the drill head 32 shown in FIG. 7 is designed in the form of a flat surface 37.
  • the connection of the drill head 32 to the drill shank can take place by welding or soldering.
  • the drill head 32 which mainly consists of cobalt powder and tungsten carbide, for example, can be provided in the region of the end face 37 with a layer 38 containing only cobalt powder, which leads to an improvement in the welded or soldered connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)

Claims (10)

  1. Fleuret à rocher, comprenant un porte-lames (2, 12, 22, 32) globalement réalisé en métal dur et rattaché à une tige de fleuret (1) munie de goujures (11), caractérisé en ce que la section transversale du porte-lames (2, 12, 22, 32) située entre la surface frontale (10, 16, 28, 37) raccordée à la tige de fleuret (1) et la surface frontale libre est formée par la section transversale restante entre deux évidements (3a, 3b) sensiblement en forme de segments de cercle diamétralement opposés et s'étendant le long de l'axe du fleuret dans la direction longitudinale du porte-lames (2, 12, 22, 32), les projections des évidements (3a, 3b) vues dans le sens axial coïncidant avec les parties des goujures (11) qui avoisinent la surface frontale (10, 16, 28, 37) rattachée à la tige de fleuret (1), et un taillant principal (4, 14, 24, 34) s'étendant sensiblement en forme de toit et le long de l'une des diagonales (D1) de la section transversale.
  2. Fleuret à rocher selon la revendication 1, caractérisé en ce que pour l'autre diagonale (D2) sont prévus au moins deux taillants supplémentaires (5, 6, 15, 25, 35) orientés sensiblement parallèlement à celle-ci.
  3. Fleuret à rocher selon la revendication 2, caractérisé en ce que les taillants supplémentaires (5, 6, 15, 25, 35) sont disposés à symétrie de révolution dans la région extérieure frontale du porte-lames (2, 12, 22, 32).
  4. Fleuret à rocher selon l'une des revendications 1 à 3, caractérisé en ce que dans la direction de rotation du porte-lames (2, 12, 22, 32), les taillants principaux (4, 14, 24, 34) arrivent avant les taillants supplémentaires (5, 6, 15, 25, 35) en contact avec une roche à travailler.
  5. Fleuret à rocher selon l'une des revendications 1 à 4, caractérisé en ce que le taillant principal (4, 14, 24, 34) et les taillants supplémentaires (5, 6, 15, 25, 35) se situent sensiblement sur la même enveloppante.
  6. Fleuret à rocher selon l'une des revendications 1 à 5, caractérisé en ce que l'aire de la section transversale des évidements (3a, 3b) est égale à 0,6 à 0,9 fois la section transversale du porte-lames (2, 12, 22, 32).
  7. Fleuret à rocher selon l'une des revendications 1 à 6, caractérisé en ce que la surface frontale (37) du porte-lames (32) rattachée à la tige de fleuret est plane.
  8. Fleuret à rocher selon l'une des revendications 1 à 6, caractérisé en ce que la surface frontale (10, 16, 28) du porte-lames (2, 12, 22) rattachée à la tige de fleuret (1) présente un creux (8, 17, 27) qui coopère avec une surface frontale correspondante de la tige de fleuret (1) et présente au moins deux génératrices qui, en partant de la région de l'embouchure, se rétrécissent en direction d'un centre commun situé sur l'axe longitudinal du porte-lames (2, 12, 22).
  9. Fleuret à rocher selon la revendication 8, caractérisé en ce que le creux (17, 27) présente une forme conique, de toit ou de calotte.
  10. Fleuret à rocher selon l'une des revendications, caractérisé en ce que la surface frontale (10) du porte-lames (2) rattachée à la tige de fleuret (1) comporte des surfaces d'entraînement en rotation (7).
EP94810562A 1993-11-18 1994-09-27 Foret héliocoidal Expired - Lifetime EP0654580B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339245A DE4339245A1 (de) 1993-11-18 1993-11-18 Spiralbohrer
DE4339245 1993-11-18

Publications (3)

Publication Number Publication Date
EP0654580A2 EP0654580A2 (fr) 1995-05-24
EP0654580A3 EP0654580A3 (fr) 1995-11-02
EP0654580B1 true EP0654580B1 (fr) 1997-08-20

Family

ID=6502805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810562A Expired - Lifetime EP0654580B1 (fr) 1993-11-18 1994-09-27 Foret héliocoidal

Country Status (7)

Country Link
US (1) US5492187A (fr)
EP (1) EP0654580B1 (fr)
JP (1) JP3441819B2 (fr)
KR (1) KR100313617B1 (fr)
CN (1) CN1044023C (fr)
DE (2) DE4339245A1 (fr)
DK (1) DK0654580T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10334610A1 (de) * 2003-07-29 2005-03-03 Hilti Ag Bohrkopf
EP2692983A1 (fr) 2012-08-03 2014-02-05 Irwin Industrial Tool Company Tête de forage pour forage et forage
DE102012015371A1 (de) 2012-08-03 2014-02-06 Irwin Industrial Tool Co. Bohrkopf für einen Bohrer und Bohrer
DE102012015372A1 (de) 2012-08-03 2014-02-06 Irwin Industrial Tool Co. Bohrkopf für einen Bohrer und Bohrer

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318072A (en) * 1996-09-21 1998-04-15 Plansee Tizit Gmbh Masonry bit
DE19650487A1 (de) * 1996-12-05 1998-06-10 Hilti Ag Bohrwerkzeug
DE19703994B4 (de) * 1997-02-03 2006-04-20 Drebo Werkzeugfabrik Gmbh Bohrer
DE19709771B4 (de) * 1997-03-10 2008-03-20 Drebo Werkzeugfabrik Gmbh Gesteinsbohrer
DE19724373A1 (de) * 1997-06-10 1998-12-17 Hilti Ag Gesteinsbohrer
DE19810192A1 (de) * 1998-03-10 1999-09-16 Hilti Ag Bohrwerkzeug
US6039127A (en) * 1998-03-13 2000-03-21 Loudon Enterprises, Inc. Rock drill
DE29901285U1 (de) * 1999-01-26 1999-06-17 Plica Werkzeugfabrik Ag, Mollis Bohrwerkzeug
US6374931B1 (en) * 1999-11-03 2002-04-23 Relton Corporation Multiple cutter rotary hammer bit
DE10009732A1 (de) 2000-03-02 2001-09-06 Hawera Probst Gmbh Gesteinsbohrer
SE519575C2 (sv) * 2000-04-11 2003-03-18 Sandvik Ab Borrdkär för metallborrning
DE10024433A1 (de) * 2000-05-19 2001-11-29 Hawera Probst Gmbh Gesteinsbohrer
DE10053344A1 (de) * 2000-10-27 2002-05-08 Hilti Ag Gesteinsbohrer
DE10117262A1 (de) * 2001-01-17 2002-07-18 Hilti Ag Gesteinsbohrer
DE20102914U1 (de) * 2001-02-19 2001-05-03 Berner Gmbh Bohrer mit Bohrkopf aus Hartmetall
US7540341B2 (en) * 2002-06-06 2009-06-02 Kabushiki Kaisha Miyanaga Drill bit
GB2393681A (en) 2002-10-03 2004-04-07 Black & Decker Inc Masonry drilling tool
DE102004047469A1 (de) * 2004-09-30 2006-04-06 Robert Bosch Gmbh Bohrwerkzeug mit einem als Platte oder Kopf ausgebildeten Schneidelement
WO2006114306A1 (fr) * 2005-04-28 2006-11-02 Irwin Industrial Tool Company A/S Outil de perçage
DE102006020538A1 (de) * 2006-05-03 2007-11-15 Irwin Industrial Tools Gmbh Bohrkopf für Bohrwerkzeug und Bohrwerkzeug
DE102006000251A1 (de) * 2006-05-30 2007-12-06 Hilti Ag Hartstoffkopf und Drehschlagbohrer
JP2008062620A (ja) * 2006-09-11 2008-03-21 Miyanaga:Kk ドリルビット
AU2006351038B2 (en) 2006-11-20 2011-08-18 Kabushiki Kaisha Miyanaga Superhard tip and process for producing the same
US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
CN101400198B (zh) 2007-09-28 2010-09-29 北京富纳特创新科技有限公司 面热光源,其制备方法及应用其加热物体的方法
CN101409962B (zh) 2007-10-10 2010-11-10 清华大学 面热光源及其制备方法
DE102007000848A1 (de) * 2007-10-11 2009-04-23 Hilti Aktiengesellschaft Selbstbohrschraube
DE102007000534A1 (de) * 2007-10-19 2009-04-23 Hilti Aktiengesellschaft Schlagbohrwerkzeug
US7740088B1 (en) * 2007-10-30 2010-06-22 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ultrasonic rotary-hammer drill
US8070397B2 (en) * 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
US7861807B2 (en) 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
DE102009003288A1 (de) * 2009-05-20 2010-11-25 Hilti Aktiengesellschaft Bohrer
US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
DE102009028020B4 (de) * 2009-07-27 2011-07-28 Hilti Aktiengesellschaft Bohrer und Herstellungsverfahren
US8979445B2 (en) 2010-10-15 2015-03-17 Hanita Metal Factory Ltd Cutting tip and rotary cutting tool employing same
CN103600334B (zh) * 2013-12-04 2016-06-22 湖南科技大学 等波阻钻头
CN104070200A (zh) * 2014-06-27 2014-10-01 唐英 一种钻床
DE102015116587A1 (de) * 2015-09-30 2017-03-30 Drebo Werkzeugfabrik Gmbh Bohrer
US10507534B2 (en) 2016-03-17 2019-12-17 O-Tags, Inc. Systems, methods, and apparatus for reliably installing survey tags
US10532412B2 (en) 2016-09-23 2020-01-14 Milwaukee Electric Tool Corporation Hole saw arbor assembly
EP3725441A1 (fr) 2017-01-06 2020-10-21 Milwaukee Electric Tool Corporation Scie-cloche
USD973733S1 (en) 2017-08-15 2022-12-27 Milwaukee Electric Tool Corporation Hole saw

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE379062A (fr) *
DE367010C (de) * 1923-01-15 Georg Samuel Dipl Ing Spiralbohrer mit schwalbenschwanzfoermig eingesetztem Kopf aus Schnellstahl
DE384720C (de) * 1921-11-11 1923-11-08 Georg Samuel Dipl Ing Befestigung von Schnellstahlkoepfen in Bohrern
US2259611A (en) * 1941-03-19 1941-10-21 George M Burger Drill
GB636768A (en) * 1947-08-28 1950-05-03 Victor Products Ltd Improvements relating to drilling appliances
DE941182C (de) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Schlagbohrkrone fuer Gesteinsbohrer
US3187825A (en) * 1963-08-06 1965-06-08 Gen Electric Cutter bit for roof drill
DE2008825B2 (de) * 1970-02-25 1977-10-27 Hilti Ag, Schaan (Liechtenstein) Gesteinsbohrer mit hartmetallbohrkopf
DE2348874A1 (de) * 1973-09-28 1975-04-10 Heinrich B Schaefers Gesteinsbohrer mit hartmetallbestueckung und auswechselbarem bohrkopf, sowie auswechselbarer spirale
DE3707798A1 (de) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall Gesteinsbohrer
US4817743A (en) * 1987-03-12 1989-04-04 Kennametal Inc. Butterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewith
DE3820695C2 (de) * 1988-06-18 1996-07-25 Hawera Probst Kg Hartmetall Gesteinsbohrer
SE461024B (sv) * 1988-06-23 1989-12-18 Sandvik Ab Borr
US4893875A (en) * 1988-12-16 1990-01-16 Caterpillar Inc. Ground engaging bit having a hardened tip
US5399051A (en) * 1993-08-02 1995-03-21 Aken; Douglas G. Interchangeable head boring or driving apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10334610A1 (de) * 2003-07-29 2005-03-03 Hilti Ag Bohrkopf
DE10334610B4 (de) * 2003-07-29 2006-04-20 Hilti Ag Bohrkopf
EP2692983A1 (fr) 2012-08-03 2014-02-05 Irwin Industrial Tool Company Tête de forage pour forage et forage
DE102012015371A1 (de) 2012-08-03 2014-02-06 Irwin Industrial Tool Co. Bohrkopf für einen Bohrer und Bohrer
DE102012015372A1 (de) 2012-08-03 2014-02-06 Irwin Industrial Tool Co. Bohrkopf für einen Bohrer und Bohrer
US9695640B2 (en) 2012-08-03 2017-07-04 Irwin Industrial Tool Company Drill head for a drill and drill

Also Published As

Publication number Publication date
KR950013670A (ko) 1995-06-15
DK0654580T3 (da) 1998-04-06
EP0654580A2 (fr) 1995-05-24
KR100313617B1 (ko) 2002-11-22
JPH07180463A (ja) 1995-07-18
CN1044023C (zh) 1999-07-07
CN1107409A (zh) 1995-08-30
DE4339245A1 (de) 1995-05-24
US5492187A (en) 1996-02-20
DE59403784D1 (de) 1997-09-25
EP0654580A3 (fr) 1995-11-02
JP3441819B2 (ja) 2003-09-02

Similar Documents

Publication Publication Date Title
EP0654580B1 (fr) Foret héliocoidal
EP0884448B1 (fr) Trépan de roche avec rainures d'évacuation hélicoidales
EP0778391B1 (fr) Perceuse rotative hélicoidale à percussion
DE3339211C2 (fr)
EP1993762B1 (fr) Insert de coupe, foret, utilisation d'un insert de coupe dans un foret, et procede de forage
DE3037097C2 (de) Vollbohrwerkzeug, insbesondere Spiralbohrer
DE69214100T2 (de) Schneideinsätze für Bohrkronen
DE60132455T2 (de) Drehendes werkzeug mit einem ersetzbaren schneideinsatz an einem ende
EP0778100B1 (fr) Foret héliocoidal de percussion
EP0685629B1 (fr) Trépan de forage de roche
EP0281997B1 (fr) Fleuret à rocher
DE2414354A1 (de) Gesteinsbohrer
WO2005115668A1 (fr) Foret helicoical
EP1083294B1 (fr) Outil de forage
DE102004022747A1 (de) Spanwerkzeug mit geometrisch bestimmten Schneiden für Drehantrieb
EP2253402B1 (fr) Foret
CH662763A5 (de) Vorrichtung zum verbinden eines werkzeugteils mit einem anschlussschaft.
DE10009732A1 (de) Gesteinsbohrer
EP1125662B1 (fr) Foret à forer de la pierre
DE102015220777A1 (de) Werkzeugkupplung zwischen zwei Kupplungsteilen sowie Kupplungsteil für eine solche Werkzeugkupplung
DE102009003287A1 (de) Bohrer
EP3445519B1 (fr) Foret
EP1340604A2 (fr) Foret
EP1083295A1 (fr) Outil de forage
DE19709771B4 (de) Gesteinsbohrer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE DK FR GB IT LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE DK FR GB IT LI

17P Request for examination filed

Effective date: 19951115

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970131

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE DK FR GB IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59403784

Country of ref document: DE

Date of ref document: 19970925

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19971014

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20080912

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080926

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20081016

Year of fee payment: 15

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090927

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110922

Year of fee payment: 18

Ref country code: GB

Payment date: 20110921

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120829

Year of fee payment: 19

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120927

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59403784

Country of ref document: DE

Effective date: 20140401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140401