(19)

(11)

EP 2 758 141 A1

(12)

(43) Date of publication: 30.07.2014 Bulletin 2014/31 (21) Application number: 12773406.9 (22) Date of filing: 12.09.2012

(51) International Patent Classification (IPC):  A63C 11/22(2006.01) A63B 29/02(2006.01) (86) International application number: PCT/IT2012/000280 (87) International publication number: WO 2013/042154 (28.03.2013 Gazette 2013/13)

(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 (30) Priority: 22.09.2011 IT TO20110844 (71) Applicant: Politecnico di Torino 10129 Torino (IT)	(72) Inventors: SOMA' Aurelio 10129 Torino (IT) DE PASQUALE, Giorgio 10129 Torino (IT) FRACCAROLLO, Federico 10129 Torino (IT) (74) Representative: Garavelli, Paolo  A.BRE.MAR. S.R.L. Via Servais 27 10146 Torino 10146 Torino (IT)