(19)

(11)

EP 3 119 936 A1

(12)

(43) Date of publication: 25.01.2017 Bulletin 2017/04 (21) Application number: 15717815.3 (22) Date of filing: 20.03.2015

(51) International Patent Classification (IPC):  D06F 39/14(2006.01) A47L 15/42(2006.01) D06F 37/28(2006.01) (86) International application number: PCT/EP2015/055959 (87) International publication number: WO 2015/140306 (24.09.2015 Gazette 2015/38)

(84) Designated Contracting States: 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 States: BA ME Designated Validation States: MA (30) Priority: 21.03.2014 IT MI20140478 (71) Applicant: Elettrotecnica Rold Srl 20014 Nerviano (MI) (IT)	(72) Inventor: ROCCHITELLI, Stefano I-20010 Pogliano Milanese (IT) (74) Representative: Gervasi, Gemma et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria 9 20122 Milano 20122 Milano (IT)