ATE400880T1 - MAGNETICALLY HOLD CHISELS OF A MILLING DEVICE - Google Patents

MAGNETICALLY HOLD CHISELS OF A MILLING DEVICE

Info

Publication number
ATE400880T1
ATE400880T1 AT05020983T AT05020983T ATE400880T1 AT E400880 T1 ATE400880 T1 AT E400880T1 AT 05020983 T AT05020983 T AT 05020983T AT 05020983 T AT05020983 T AT 05020983T AT E400880 T1 ATE400880 T1 AT E400880T1
Authority
AT
Austria
Prior art keywords
chisel
holder
chisels
milling device
held
Prior art date
Application number
AT05020983T
Other languages
German (de)
Inventor
Gerd Elfgen
Original Assignee
Gerd Elfgen
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 Gerd Elfgen filed Critical Gerd Elfgen
Application granted granted Critical
Publication of ATE400880T1 publication Critical patent/ATE400880T1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders

Abstract

The device (100) has a holder (130) with a recess and a chisel (160) with a shaft (168) held by the holder, whereby the chisel is rotatable about the longitudinal axis of the chisel shaft and is held in the chisel holder with the aid of magnetic force. The chisel is essentially held in the holder by a holding force acting along the chisel shaft and caused only by magnetic force. An independent claim is also included for a method of holding a bit for a cutter with a rotatable cutter roller.
AT05020983T 2004-09-27 2005-09-27 MAGNETICALLY HOLD CHISELS OF A MILLING DEVICE ATE400880T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004046719A DE102004046719A1 (en) 2004-09-27 2004-09-27 Chisel of a milling device

Publications (1)

Publication Number Publication Date
ATE400880T1 true ATE400880T1 (en) 2008-07-15

Family

ID=35453483

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05020983T ATE400880T1 (en) 2004-09-27 2005-09-27 MAGNETICALLY HOLD CHISELS OF A MILLING DEVICE

Country Status (3)

Country Link
EP (1) EP1641002B1 (en)
AT (1) ATE400880T1 (en)
DE (2) DE102004046719A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008010609A1 (en) 2008-02-22 2009-09-03 Gerd Elfgen Chisel holder for use with chisel holder arrangement, has borehole for retaining of cylindrical shaft of chisel that is rotated around longitudinal axis, where channel is provided to form connection
DE102009027732B4 (en) 2009-07-15 2012-02-23 Gerd Elfgen Chisel of a milling device
DE202010008050U1 (en) 2009-07-22 2010-10-14 Elfgen, Gerd Chisel of a milling device and chisel-chisel holder combination

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754101A (en) * 1949-01-21 1956-07-10 Saskatchewan Potash Machine and method for mining underground deposits
US2810567A (en) * 1956-02-01 1957-10-22 Gen Electric Cutter tool assembly providing a floating fit between tool and holder
US3256043A (en) * 1961-08-25 1966-06-14 Cincinnati Mine Machinery Co Releasable engagement means for cutter bits
US3497846A (en) * 1967-12-27 1970-02-24 Us Navy Magnetic anchor for curved and irregular surfaces
US5605382A (en) * 1995-08-02 1997-02-25 Kennametal Inc. Cutting tool retention system
US5833017A (en) * 1996-10-10 1998-11-10 Kennametal Inc. Cutting bit assembly for impinging an earth strata

Also Published As

Publication number Publication date
DE102004046719A1 (en) 2006-04-06
EP1641002A1 (en) 2006-03-29
EP1641002B1 (en) 2008-07-09
DE502005004610D1 (en) 2008-08-21

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee