EP 3581352 A1 20191218 - REAMER AND METHOD FOR PRODUCING COUNTERSUNK BORES IN CONCRETE
Title (en)
REAMER AND METHOD FOR PRODUCING COUNTERSUNK BORES IN CONCRETE
Title (de)
REIBAHLE UND VERFAHREN ZUR HERSTELLUNG VON SENKBOHRUNGEN IN BETON
Title (fr)
ALÉSOIR ET PROCÉDÉ PERMETTANT DE PRODUIRE DES ALÉSAGES FRAISÉS DANS DU BÉTON
Publication
Application
Priority
EP 18176922 A 20180611
Abstract (en)
The invention relates to a reamer for expanding the mouth of a bore in a concrete substrate. The reamer is equipped with a shaft, which is provided, at the rear end region of the shaft, with a shank, a guide pin protruding at the front end of the reamer, cutting wings connected to the shaft, wherein each of the cutting wings has a lateral surface that tapers towards the front end of the reamer, and cutting teeth provided on each cutting wing, wherein the cutting teeth protrude from the respective cutting wing on the lateral surface of the respective cutting wing. The invention also relates to a method for producing a countersunk bore in concrete, in which a bore is first produced and the bore is subsequently, following removal of the drill from the bore, reamed.
IPC 8 full level
B28D 1/14 (2006.01); B28D 1/18 (2006.01); E21B 10/26 (2006.01)
CPC (source: EP US)
B28D 1/146 (2013.01 - EP); B28D 1/186 (2013.01 - EP); E21B 10/26 (2013.01 - EP US)
Citation (applicant)
- EP 3103756 A1 20161214 - VBI ONTWIKKELING BV [NL]
- DE 10008342 A1 20010830 - WAKAI SANGYO KK [JP]
- US 7384223 B2 20080610 - NADLER DONALD S [US]
- US 4769960 A 19880913 - ZIPF ECKART [DE], et al
Citation (search report)
- [XI] FR 1154010 A 19580401 - HELLEFORS BRUKS AKTIEBOLAG
- [XI] GB 2479146 A 20111005 - BENTLEY PAUL JAMES [GB]
- [XI] FR 2315602 A1 19770121 - KRUPP GMBH [DE]
- [XI] DE 4102794 A1 19920806 - HAWERA PROBST KG HARTMETALL [DE]
- [A] DE 102012221114 B3 20140410 - HILTI AG [LI]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3581352 A1 20191218; EP 3581352 B1 20211006; DK 3581352 T3 20211115; ES 2894670 T3 20220215
DOCDB simple family (application)
EP 18176922 A 20180611; DK 18176922 T 20180611; ES 18176922 T 20180611