EP1225300A2 - Foret à roche - Google Patents

Foret à roche Download PDF

Info

Publication number: EP1225300A2
Authority: EP; European Patent Office
Prior art keywords: cutting edge; rock drill; secondary cutting; drill according; arcuate
Prior art date: 2001-01-17
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

EP02405004A

Other languages

German (de)

English (en)

Other versions

EP1225300B1 (fr

EP1225300A3 (fr

Inventor

Martin Schautt

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.)

2001-01-17

Filing date

2002-01-08

Publication date

2002-07-24

2002-01-08 Application filed by Hilti AG filed Critical Hilti AG

2002-07-24 Publication of EP1225300A2 publication Critical patent/EP1225300A2/fr

2003-11-19 Publication of EP1225300A3 publication Critical patent/EP1225300A3/fr

2006-05-10 Application granted granted Critical

2006-05-10 Publication of EP1225300B1 publication Critical patent/EP1225300B1/fr

2022-01-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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

Definitions

the invention designates an at least partially rotating and striking one Hand tool driven rock drill for the abrasive removal of rock and rock-like material like concrete.
Rock drills for hand tools have one end of the shaft Inserting end and at the other end a tool head with cutting edges made of hard material.
the tool head has cutting plates or cutting bits made of hard material or is in the form of compact solid hard head.
a disadvantage is that with reinforcing iron hits in Concrete increases the stress on the cutting edge, especially in training with a acute wedge angle suitable for high drilling performance.
a tool head provided with rinsing holes has one Rock drill two to one main insert, with respect to the minor cutting edge parallel, radially offset secondary cutting inserts.
EP607958A1 there are two in a rock drill for hand tools with respect to the minor cutting edge, minor cutting plates oriented differently spaced radially from the main insert.
a rock drill for hand tools with compact Solid hard head a diametrically running main cutting edge and exclusively in the radial outer area arranged, trailing at an acute angle with respect to the direction of rotation, Minor cutting edges whose minor cutting edge extends radially.
the object of the invention is to reduce the risk of breakage Solid hard head for rebar hits. Another aspect is one Increase lifespan.
the solid hard head of a rock drill for hand tool devices essentially has one main cutting edge and at least one radially exclusively in the outer area arranged secondary cutting edge with an arcuate secondary cutting edge.
the arcuate minor cutting edge of the minor sheath is advantageous circumferentially axially rounded, so that when a reinforcing iron hits the Rock drill on this secondary cutting edge and the cutting surfaces on both sides axially is lifted off.
the solid hard head advantageously has two secondary cutting edges, which are further advantageous are arranged symmetrically to the main cutting edge, which reduces the vibration noise become.
the main cutting edge advantageously has two diametrically offset cutting edges, which as Tip converge in a roof edge, which results in a stable drilling behavior results.
the secondary cutting edges are advantageous axially behind the envelope of the main cutting edges reset, which increases the drilling performance due to a higher force on the main cutting edge elevated.
the secondary cutting edges advantageously form an acute wedge angle in the radial plane between 50 ° and 80 °, which makes the cutting edges aggressive in hard surfaces can penetrate and increase the drilling capacity.
the secondary cutting edges are advantageous in terms of the length of their arcuate ones Secondary cutting edge (4a, 4b) formed such that they have the same dimensions as the Main cutting edges are worn axially, resulting in a long service life Drilling performance is achieved.
the solid hard head 1 shown in supervision does not have one further shown rock drill for hand tools a main cutting edge 2 and two diametrically offset, symmetrical to the main cutting edge 2, radially only in the outer Area, arranged secondary cutting edges 3a, 3b, each with an arcuate, axially rounded peripheral cutting edge 4a, 4b.
the main cutting edge 2 has two cutting edges 5a, 5b, which act as the tip of the rock drill in a roof edge 6 converge.
the secondary cutting edges 3a, 3b each have an arcuate arc length of approx. ⁇ / 4 rad.
the part of the solid head 1 shown in side view does not have one further illustrated rock drill for hand tools an axially to the axis of rotation A by the minor cutting edge residue x behind the envelope 7 of the main cutting edge 2 recessed secondary cutting edge 3a, which is transverse to the radial plane Secondary cutting edge 4a an acute wedge angle ⁇ of 65 ° to the two sides, partially Form concave shaped cutting surfaces 8a, 8b.

Landscapes

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)
Drilling And Exploitation, And Mining Machines And Methods (AREA)

EP02405004A 2001-01-17 2002-01-08 Foret à roche Expired - Lifetime EP1225300B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10117262A DE10117262A1 (de)	2001-01-17	2001-01-17	Gesteinsbohrer
DE10117262		2001-01-17

Publications (3)

Publication Number	Publication Date
EP1225300A2 true EP1225300A2 (fr)	2002-07-24
EP1225300A3 EP1225300A3 (fr)	2003-11-19
EP1225300B1 EP1225300B1 (fr)	2006-05-10

Family

ID=7680683

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02405004A Expired - Lifetime EP1225300B1 (fr)	2001-01-17	2002-01-08	Foret à roche

Country Status (4)

Country	Link
US (1)	US6843334B2 (fr)
EP (1)	EP1225300B1 (fr)
JP (1)	JP3921089B2 (fr)
DE (2)	DE10117262A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1854572A1 (fr) *	2006-05-10	2007-11-14	HILTI Aktiengesellschaft	Tête de forage de matière solide
DE102006020538A1 (de) *	2006-05-03	2007-11-15	Irwin Industrial Tools Gmbh	Bohrkopf für Bohrwerkzeug und Bohrwerkzeug
EP1906082A1 (fr)	2006-09-26	2008-04-02	Bäro GmbH & Co. KG	Installation d'illumination
DE202008014317U1 (de)	2008-10-28	2009-01-29	BÄRO GmbH & Co. KG	Leuchte
EP4375476A1 (fr) *	2022-11-22	2024-05-29	Hilti Aktiengesellschaft	Perforatrice de roches à cinq lames

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4189380B2 (ja) *	2002-06-06	2008-12-03	株式会社ミヤナガ	ドリルビット
US6883624B2 (en) *	2003-01-31	2005-04-26	Smith International, Inc.	Multi-lobed cutter element for drill bit
ATE367906T1 (de) *	2003-11-17	2007-08-15	Bosch Gmbh Robert	Bohr- und/oder meisselwerkzeug
GB2436025B (en) *	2005-05-17	2008-02-20	Smith International	Rolling cone drill bit
US7624825B2 (en) *	2005-10-18	2009-12-01	Smith International, Inc.	Drill bit and cutter element having aggressive leading side
DE102006000083A1 (de) *	2006-02-20	2007-08-23	Hilti Ag	Ankerbohrkopf
US7743855B2 (en) *	2006-09-05	2010-06-29	Smith International, Inc.	Drill bit with cutter element having multifaceted, slanted top cutting surface
DE102007000534A1 (de) *	2007-10-19	2009-04-23	Hilti Aktiengesellschaft	Schlagbohrwerkzeug
US7861807B2 (en) *	2008-12-03	2011-01-04	Black & Decker Inc.	Drill bit including one piece cutting head
US20140182947A1 (en)	2012-12-28	2014-07-03	Smith International, Inc.	Cutting insert for percussion drill bit
CA3011347A1 (fr)	2016-01-13	2017-07-20	Schlumberger Canada Limited	Plaquette a ciseau coude

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1812229A1 (de) *	1968-12-02	1971-01-14	Hilti Ag	Bohrer bzw. Bohrerhalter fuer Bohrhaemmer
US3647310A (en) *	1970-04-03	1972-03-07	Mansfield K Morse	Universal hole saw arbor
DE2129913A1 (de) *	1971-06-16	1972-12-21	Hilti Ag	Gesteinsbohrer
DE2414354A1 (de) *	1974-03-26	1975-10-16	Heller Geb	Gesteinsbohrer
DE2807156C2 (de) *	1978-02-20	1986-11-20	Gebrüder Heller Verwaltungsgesellschaft mbH, 2807 Achim	Gesteinsbohrwerkzeug
DE3426977A1 (de) *	1984-07-21	1986-01-30	Hawera Probst Gmbh + Co, 7980 Ravensburg	Gesteinsbohrer
JP2534676Y2 (ja)	1989-04-24	1997-05-07	仁下城	無蓋型乗用車
DE4012772A1 (de) *	1990-04-21	1991-10-24	Westa Werkzeugbau	Bohrer fuer bohrhaemmer, insbesondere zum bohren im gestein, beton o. dgl.
US5273380A (en)	1992-07-31	1993-12-28	Musacchia James E	Drill bit point
DE4339245A1 (de) *	1993-11-18	1995-05-24	Hilti Ag	Spiralbohrer
US5466099A (en) *	1993-12-13	1995-11-14	Tdw Delaware, Inc.	Cutter shell for forming holes of improved cylindricality
DE4436917A1 (de) *	1994-10-15	1996-04-18	Hilti Ag	Bohreinheit mit Hohlbohrkrone und Zentrierdorn
DE19545647A1 (de) *	1995-12-07	1997-06-12	Hilti Ag	Drehschlag-Wendelbohrer
DE19650487A1 (de) *	1996-12-05	1998-06-10	Hilti Ag	Bohrwerkzeug
DE19711261A1 (de) *	1997-03-18	1998-09-24	Hilti Ag	Kombi-Bohrwerkzeug
DE19724373A1 (de) *	1997-06-10	1998-12-17	Hilti Ag	Gesteinsbohrer
DE19740277B4 (de) *	1997-09-13	2012-05-24	Robert Bosch Gmbh	Bohrwerkzeug
DE19748987B4 (de) *	1997-11-06	2007-11-22	Robert Bosch Gmbh	Bohrwerkzeug insbesondere für drehschlagendes Bohren von vorzugsweise Gestein
DE19827536A1 (de) *	1998-06-20	1999-12-23	Hilti Ag	Bohrwerkzeug
DE19916975A1 (de) *	1999-04-15	2000-10-19	Hilti Ag	Gesteinsbohrer
DE10006936A1 (de) *	2000-02-16	2001-08-23	Hilti Ag	Bohrwerkzeug für Gestein
DE10006932A1 (de) *	2000-02-16	2001-08-23	Hilti Ag	Bohrwerkzeug für Gestein

2001
- 2001-01-17 DE DE10117262A patent/DE10117262A1/de not_active Withdrawn
2002
- 2002-01-08 EP EP02405004A patent/EP1225300B1/fr not_active Expired - Lifetime
- 2002-01-08 DE DE50206710T patent/DE50206710D1/de not_active Expired - Lifetime
- 2002-01-16 JP JP2002006989A patent/JP3921089B2/ja not_active Expired - Lifetime
- 2002-01-16 US US10/050,223 patent/US6843334B2/en not_active Expired - Lifetime

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102006020538A1 (de) *	2006-05-03	2007-11-15	Irwin Industrial Tools Gmbh	Bohrkopf für Bohrwerkzeug und Bohrwerkzeug
EP1854572A1 (fr) *	2006-05-10	2007-11-14	HILTI Aktiengesellschaft	Tête de forage de matière solide
EP1906082A1 (fr)	2006-09-26	2008-04-02	Bäro GmbH & Co. KG	Installation d'illumination
DE202008014317U1 (de)	2008-10-28	2009-01-29	BÄRO GmbH & Co. KG	Leuchte
EP4375476A1 (fr) *	2022-11-22	2024-05-29	Hilti Aktiengesellschaft	Perforatrice de roches à cinq lames
WO2024110190A1 (fr) *	2022-11-22	2024-05-30	Hilti Aktiengesellschaft	Perforatrice de roches à cinq arêtes de coupe

Also Published As

Publication number	Publication date
EP1225300B1 (fr)	2006-05-10
JP2002273723A (ja)	2002-09-25
DE50206710D1 (de)	2006-06-14
DE10117262A1 (de)	2002-07-18
US20020108789A1 (en)	2002-08-15
EP1225300A3 (fr)	2003-11-19
US6843334B2 (en)	2005-01-18
JP3921089B2 (ja)	2007-05-30

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