公开(公告)号：EP2302222A1

公开(公告)日：2011-03-30

申请号：EP09766588.9

申请日：2009-06-12

申请人： Nabtesco Corporation

发明人： MIKI, Takashi ,  HATANAKA, Yasunori

IPC分类号： F15B11/22 ,  E02F9/22

CPC分类号： E02F9/2267 ,  E02F3/433 ,  E02F9/2225 ,  F15B13/0835 ,  F15B13/0839 ,  F15B2211/3116 ,  F15B2211/4053 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/782 ,  Y10T137/87249

摘要： A stack valve 1 includes an ascending dividing valve 14 which is provide on an ascending junction path 23 and controls the flow rate of a pressure fluid supplied to a head-side chamber 4a of a bucket cylinder 4, an ascending branched path 24 which is branched from the ascending junction path 23 and connected to an unloading path 21, and an ascending cancellation switching valve 19 which is provided on the ascending branched path 24 to close or open the ascending branched path 24. The ascending dividing valve 14 and the ascending cancellation switching valve 19 are provided in the same dividing section 83.

公开(公告)号：EP2302222B1

公开(公告)日：2018-08-08

申请号：EP09766588.9

申请日：2009-06-12

申请人： Nabtesco Corporation

发明人： MIKI, Takashi ,  HATANAKA, Yasunori

IPC分类号： F15B11/22 ,  E02F9/22 ,  E02F3/43 ,  F15B13/08

CPC分类号： E02F9/2267 ,  E02F3/433 ,  E02F9/2225 ,  F15B13/0835 ,  F15B13/0839 ,  F15B2211/3116 ,  F15B2211/4053 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/782 ,  Y10T137/87249

摘要： A stack valve 1 includes an ascending dividing valve 14 which is provide on an ascending junction path 23 and controls the flow rate of a pressure fluid supplied to a head-side chamber 4a of a bucket cylinder 4, an ascending branched path 24 which is branched from the ascending junction path 23 and connected to an unloading path 21, and an ascending cancellation switching valve 19 which is provided on the ascending branched path 24 to close or open the ascending branched path 24. The ascending dividing valve 14 and the ascending cancellation switching valve 19 are provided in the same dividing section 83.