EP 3107687 B1 20180411 - IMPROVED MANDREL FOR SIZING, SMOOTHING OR POLISHING STONE MATERIALS WITH ROTATING ABRASIVE HEADS
Title (en)
IMPROVED MANDREL FOR SIZING, SMOOTHING OR POLISHING STONE MATERIALS WITH ROTATING ABRASIVE HEADS
Title (de)
VERBESSERTER DORN ZUM KALIBRIEREN, GLÄTTEN ODER POLIEREN VON STEINMATERIALIEN MIT ROTIERENDEN SCHLEIFKÖPFEN
Title (fr)
MANDRIN AMÉLIORÉ POUR LE CALIBRAGE, LE LISSAGE OU LE POLISSAGE DE MATÉRIAUX PIERREUX AU MOYEN DE TÊTES ABRASIVES TOURNANTES
Publication
Application
Priority
- IT MO20140034 A 20140218
- IB 2015000185 W 20150218
Abstract (en)
[origin: WO2015124990A1] An improved mandrel for sizing, smoothing or polishing stone materials with rotating abrasive heads, comprising: a sleeve within which a body (12) of the mandrel is sliding, which in its turn is provided with a shaft (22) at whose end a rotating head with abrasive tools is applied; a pair of actuating cylinders (13) for the positioning of said mandrel (1), that is to say, of the head connected to it, on the supporting metal structure (2); a pair of electric motors for the activation in rotation of the mandrel and a drive from said motors to the shaft (22) of the mandrel; wherein said motors are coupled in rotation with the shaft of the mandrel with a belt drive; wherein, finally, the coupling between a supporting plate (15) of the belt drive (16) connected to the body (12) of the mandrel sliding within said adjustable sleeve (3) is realized by a disjointable coupling (37) in which screws (38) clamp radial lobes (39) of the body of the mandrel to lugs (40), which are made in the centre of the supporting plate (15); the radial lobes (39) are alternated with ports (41) to allow the passage with clearance of the lugs (40) during the disjointing of the coupling with the rotation of the supporting plate (15).
IPC 8 full level
B24B 41/04 (2006.01)
CPC (source: CN EP)
B24B 41/04 (2013.01 - CN EP)
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
DOCDB simple family (publication)
WO 2015124990 A1 20150827; BR 112016018894 B1 20210223; CN 106170369 A 20161130; CN 106170369 B 20181113; EP 3107687 A1 20161228; EP 3107687 B1 20180411; ES 2676081 T3 20180716
DOCDB simple family (application)
IB 2015000185 W 20150218; BR 112016018894 A 20150218; CN 201580009040 A 20150218; EP 15714276 A 20150218; ES 15714276 T 20150218