(19)

(11)

EP 3 071 505 A1

(12)

(43) Date of publication: 28.09.2016 Bulletin 2016/39 (21) Application number: 15856960.8 (22) Date of filing: 04.11.2015

(51) International Patent Classification (IPC):  B66B 17/34(2006.01) B66B 1/02(2006.01) B66B 17/14(2006.01) (86) International application number: PCT/CN2015/093753 (87) International publication number: WO 2016/070804 (12.05.2016 Gazette 2016/19)

(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 MD (30) Priority: 05.11.2014 CN 201410635971 (71) Applicant: ABB Schweiz AG 5400 Baden (CH)	(72) Inventors: QIU, Peilin Beijing 100102 (CN) SONG, Weihan Beijing 100016 (CN) (74) Representative: Zimmermann & Partner Patentanwälte mbB  Josephspitalstr. 15 80331 München 80331 München (DE)