EP0586337B1 - Outil à ciseau - Google Patents

Outil à ciseau Download PDF

Info

Publication number
EP0586337B1
EP0586337B1 EP93810581A EP93810581A EP0586337B1 EP 0586337 B1 EP0586337 B1 EP 0586337B1 EP 93810581 A EP93810581 A EP 93810581A EP 93810581 A EP93810581 A EP 93810581A EP 0586337 B1 EP0586337 B1 EP 0586337B1
Authority
EP
European Patent Office
Prior art keywords
receiving part
cutting part
cutting
diameter
chisel tool
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
EP93810581A
Other languages
German (de)
English (en)
Other versions
EP0586337A2 (fr
EP0586337A3 (fr
Inventor
Rainer Batliner
Kurt Kindle
Karl-Heinz Oehri
Axel Neukirchen
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 EP0586337A2 publication Critical patent/EP0586337A2/fr
Publication of EP0586337A3 publication Critical patent/EP0586337A3/fr
Application granted granted Critical
Publication of EP0586337B1 publication Critical patent/EP0586337B1/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 chisel tool according to the generic preamble of claim 1.
  • a chisel tool used for processing rock, concrete and the like is subject to considerable stress, which leads to wear, in particular of the cutting part. For this reason, chisel tools are made from a high-quality and therefore expensive material.
  • a drilling tool is known from DE-PS 7 47 944, in which the cutting edge consists of a higher quality material.
  • the cutting edge is welded to the rest of the tool. This production method enables the drilling tool to be manufactured more economically.
  • EP-A-0 470 045 which forms the generic generic term, a trained chisel tool with a receiving part and a cutting part is known.
  • the receiving part and the cutting part each have a constant diameter over their longitudinal extent. The diameter of the receiving part exceeds the diameter of the cutting part in some areas.
  • This known chisel tool is formed in one piece, that is, the receiving part and the chisel part consist of the same material.
  • the invention is based on the object of exclusively or predominantly exposed to tools, i.e. in particular to create chisel tools which are economical to manufacture and which, in addition to a long service life, ensure high degradation performance.
  • a chisel tool which has the features stated in the characterizing section of patent claim 1.
  • the chisel tool according to the invention has a cutting part which, compared to the receiving part, consists of a higher quality material and is connected to the receiving part via a friction-welded connection.
  • the chisel tool By producing the chisel tool from parts of different materials, it is possible to use a material of higher quality than the receiving part for the cutting part that is subject to wear. The less expensive material for the receiving part leads to a more economical chisel tool overall.
  • stepped chisel tools offer advantages in this regard.
  • the transition point from the cutting part to the receiving part in the form of a friction weld connection it makes sense to use this connection point for the jump in diameter.
  • To connect the two parts with each other via a friction welding connection offers also the advantage that an extremely economical connection process is used, which does not require any additional material.
  • a friction weld connection offers advantages in terms of concentricity and centering.
  • a chisel tool produced in the manner according to the invention also has logistical advantages in that special solutions can be produced without any problems, which can be, for example, special lengths or special materials for specific substrates.
  • a cutting part tailored to the special case can be connected to a standard receiving part.
  • the connection of the two parts by means of a friction welding connection enables refitting with a new cutting part if the receiving part is still operational.
  • the diameter of the receiving part corresponds to 1.1 to 1.3 times the cutting part. It should be noted here that both the receiving part and the cutting part each have a constant diameter along their respective entire lengths.
  • the diameter of the receiving part is preferably 1.125 times the cutting part.
  • the special steel 42CrMo4 has proven itself as the material for the receiving part. On the one hand, this steel can withstand the stresses acting on the receiving part and, on the other hand, it is so inexpensive that it promotes the economic efficiency of the entire chisel tool.
  • the special steel X50CrMoV51 is suitable for the cutting part, which is characterized by a sufficiently high wear resistance in connection with the material degradation taking place.
  • the length ratios of the cutting part and the receiving part can be varied.
  • certain length ratios are advantageous, and these are expediently achieved when the length of the cutting part corresponds to 0.4 to 1 times the receiving part.
  • the chisel tool consists of a receiving part 1 and a cutting part 2.
  • the receiving part 1 has a larger diameter than the cutting part 2.
  • Receiving part 1 and cutting part 2 are connected to one another via a friction welding connection 3.
  • the receiving part 1 has means for connection to a receptacle of a drive device, these means in the present case being designed in a known manner as a locking groove 4.
  • the cutting part 2 is provided with a cutting edge 5 at the free end.
  • the cutting edge 5 can be pointed, spade, profile or the like.
  • both the receiving part 1 and the cutting part 2 each have a constant diameter over their length.
  • receiving part 1 and cutting part 2 are each made of different materials, the cutting part 2 consisting of a higher quality material than the receiving part 1 in the manner according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Inorganic Insulating Materials (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Shearing Machines (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Saccharide Compounds (AREA)

Claims (6)

  1. Burin, comprenant une section de fixation (1) et une section de tranchant (2) dont chacune présente un diamètre constant, le diamètre de la section de fixation (1) dépassant le diamètre de la section de tranchant (2), caractérisé en ce que la section de tranchant (2) est constituée d'un matériau d'une qualité supérieure à celle de la section de fixation (1) et est rattachée à ladite section de fixation (1) par l'intermédiaire d'une soudure par friction (3).
  2. Burin selon la revendication 1, caractérisé en ce que le diamètre de la section de fixation (1) correspond à 1,1 à 1,3 fois celui de la section de tranchant (2).
  3. Burin selon la revendication 2, caractérisé en ce que le diamètre de la section de fixation (1) correspond à 1,125 fois celui de la section de tranchant (2).
  4. Burin selon l'une des revendications 1 à 3, caractérisé en ce que la section de fixation (1) est réalisée en acier 42CrMo4.
  5. Burin selon l'une des revendications 1 à 4, caractérisé en ce que la section de tranchant (2) est réalisée en acier X50CrMoV51.
  6. Burin selon l'une des revendications 1 à 5, caractérisé en ce que la longueur de la section de tranchant correspond à 0,4 à 1 fois celle de la section de fixation (1).
EP93810581A 1992-08-31 1993-08-17 Outil à ciseau Expired - Lifetime EP0586337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4228985A DE4228985A1 (de) 1992-08-31 1992-08-31 Meisselwerkzeug
DE4228985 1992-08-31

Publications (3)

Publication Number Publication Date
EP0586337A2 EP0586337A2 (fr) 1994-03-09
EP0586337A3 EP0586337A3 (fr) 1995-01-11
EP0586337B1 true EP0586337B1 (fr) 1996-07-17

Family

ID=6466863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810581A Expired - Lifetime EP0586337B1 (fr) 1992-08-31 1993-08-17 Outil à ciseau

Country Status (7)

Country Link
EP (1) EP0586337B1 (fr)
JP (1) JPH06170748A (fr)
AT (1) ATE140413T1 (fr)
DE (2) DE4228985A1 (fr)
DK (1) DK0586337T3 (fr)
ES (1) ES2089776T3 (fr)
HU (1) HU212090B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
US9085074B2 (en) 2011-03-22 2015-07-21 Black & Decker Inc. Chisels
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2310391A (en) * 1996-02-22 1997-08-27 Boart Longyear Ltd A shank adapter
DE19612277A1 (de) * 1996-03-25 1997-10-02 Fischer Artur Werke Gmbh Lochschlag- und Ankersetzwerkzeug sowie mit dem Werkzeug setzbarer Anker für poröses Mauerwerk
DE19757271A1 (de) * 1997-12-22 1999-06-24 Hilti Ag Werkzeug
DE10244509A1 (de) * 2002-09-25 2004-04-08 Hilti Ag Spitzmeissel
DE102010031313A1 (de) * 2010-07-14 2012-01-19 Hilti Aktiengesellschaft Meisselwerkzeug, Verfahren zur Herstellung eines Meisselwerkzeugsystems und Handwerkzeugmaschine
USD752937S1 (en) * 2013-06-18 2016-04-05 Hilti Aktiengesellschaft Chisel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747944C (de) 1938-12-29 1944-10-20 Heller Geb Spiral- oder Wendelbohrer mit Hartmetallbestueckung
GB934309A (en) * 1961-12-02 1963-08-14 Ward & Payne Ltd Improvements in or relating to joiners' chisels and gouges
AT377207B (de) * 1981-05-22 1985-02-25 Schobesberger Ernst Ing Verfahren zur herstellung von schaftmeisseln
JPS603939A (ja) * 1983-05-31 1985-01-10 Kinzaburo Usui のみ刃の製造法
DE4024650A1 (de) 1990-08-03 1992-02-06 Hilti Ag Meissel mit optimiertem schaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085074B2 (en) 2011-03-22 2015-07-21 Black & Decker Inc. Chisels
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

Also Published As

Publication number Publication date
EP0586337A2 (fr) 1994-03-09
HUT68759A (en) 1995-07-28
HU212090B (en) 1996-02-28
DK0586337T3 (da) 1996-12-02
HU9302450D0 (en) 1993-11-29
DE59303245D1 (de) 1996-08-22
JPH06170748A (ja) 1994-06-21
ATE140413T1 (de) 1996-08-15
EP0586337A3 (fr) 1995-01-11
ES2089776T3 (es) 1996-10-01
DE4228985A1 (de) 1994-03-03

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