EP 3712101 A4 20210818 - CHAIN WINDING DEVICE
Title (en)
CHAIN WINDING DEVICE
Title (de)
KETTENAUFWICKELVORRICHTUNG
Title (fr)
DISPOSITIF D'ENROULEMENT DE CHAÎNE
Publication
Application
Priority
- JP 2017220530 A 20171116
- JP 2018028628 W 20180731
Abstract (en)
[origin: EP3712101A1] In a normal operation of moving a position of a lower suspension tool in an upward and downward direction, first drive means and second drive means are rotated in different directions, and in a chain replacement operation of replacing a chain, the first drive means and the second drive means are rotated in the same direction.
IPC 8 full level
B66D 3/20 (2006.01); B66D 1/46 (2006.01); B66D 1/48 (2006.01); B66D 3/16 (2006.01)
CPC (source: EP)
B66D 1/46 (2013.01); B66D 1/485 (2013.01); B66D 3/16 (2013.01); B66D 3/20 (2013.01)
Citation (search report)
- [X] JP S58172195 A 19831008 - HITACHI LTD
- [X] JP S56122795 A 19810926 - KITO KK
- [X] JP H05238672 A 19930917 - SHIKOKU TEKKO KK
- [X] JP S56148084 U 19811107
- [X] KR 20150032406 A 20150326 - DAEWOO SHIPBUILDING & MARINE [KR]
- [X] JP H02221099 A 19900904 - ELEPHANT CHAIN BLOCK CO
- See references of WO 2019097770A1
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)
EP 3712101 A1 20200923; EP 3712101 A4 20210818; CN 111278762 A 20200612; CN 111278762 B 20210727; JP 2019089641 A 20190613; JP 6845120 B2 20210317; WO 2019097770 A1 20190523
DOCDB simple family (application)
EP 18877740 A 20180731; CN 201880066628 A 20180731; JP 2017220530 A 20171116; JP 2018028628 W 20180731