(19)

(11)

EP 2 764 181 A1

(12)

(43) Date of publication: 13.08.2014 Bulletin 2014/33 (21) Application number: 12766449.8 (22) Date of filing: 27.09.2012

(51) International Patent Classification (IPC):  E04G 21/04(2006.01) (86) International application number: PCT/EP2012/069116 (87) International publication number: WO 2013/045568 (04.04.2013 Gazette 2013/14)

(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: 28.09.2011 CN 201110307093 (71) Applicants: Zoomlion Heavy Industry Science and Technology Co., Ltd. Changsha, Hunan 410013 (CN) Cifa S.P.A. 20030 Senago, Milano (IT)	(72) Inventors: WU, Binxing Changsha Hunan 410013 (CN) KUANG, Hao Changsha Hunan 410013 (CN) HUANG, Ke Changsha Hunan 410013 (CN) CIPOLLA, Davide I-22063 Cantù (IT) PIRRI, Nicola I-20146 Milano (IT) MACERA, Alessandro I-22070 Senna Comasco (IT) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Viale Europa Unita, 171 33100 Udine Viale Europa Unita, 171 33100 Udine (IT)