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    WORKING MACHINE AND METHOD OF CONTROLLING WORKING MACHINE
    5.
    发明公开
    WORKING MACHINE AND METHOD OF CONTROLLING WORKING MACHINE 审中-实审

    公开(公告)号：EP4427562A1

    公开(公告)日：2024-09-11

    申请号：EP24162200.0

    申请日：2024-03-07

    申请人： KUBOTA CORPORATION

    发明人： OHARA, Shinji ,  HORAI, Kohei ,  KUROSHITA, Yoshihiko

    IPC分类号： A01B63/10 ,  A01B59/06

    CPC分类号： A01B63/10 ,  A01B63/1006 ,  A01B59/067

    摘要： A working machine (1) includes a drive device (8) including a hydraulic actuator (26) to be actuated by hydraulic fluid, and a controller (11) configured or programmed to change a drive speed of the drive device (8) in a drive start period. The controller (11) is configured or programmed to, if a limit value (V) based on which operation of the drive device (8) is limited is equal to or more than a threshold, perform a first control in which the controller (11) changes the drive speed of the drive device (8) in the drive start period based on the limit value (V), and if the limit value (V) is less than the threshold, perform a second control in addition to the first control, the second control being a control in which the controller (11) changes a maximum flow rate (MF) of hydraulic fluid to actuate the hydraulic actuator (26) based on the limit value (V).

    A PLOUGH FOR DEEP TILLAGE
    7.
    发明公开
    A PLOUGH FOR DEEP TILLAGE 审中-公开

    公开(公告)号：EP4381921A1

    公开(公告)日：2024-06-12

    申请号：EP23212161.6

    申请日：2023-11-26

    申请人： Rafko Znidaric s.p.

    发明人： ZNIDARIC, Rafko

    IPC分类号： A01B13/14 ,  A01B3/38 ,  A01B63/10 ,  A01B63/32

    CPC分类号： A01B3/38 ,  A01B13/14 ,  A01B63/10 ,  A01B63/32

    摘要： The present invention belongs to the field of agricultural machine, more precisely to the field of ploughs for cultvation of agricultural land, in particular vineyards and orchard. The invention relates to a plough for deep tillage configured to allow deep plowing. The essence of the invention is in that the plough is configured to allow the ploughing depth into two depths, wherein it comprises a first board (24) for making a furrow is shorter (allowing usual depth) and a second board (25) for deeper plowing, which is arranged to deepen the already made furrow. The first board (24) thus plows to approximately on half of the final depth, while the second board (25) deepens the already made furrow. Both boards (24, 25) are designed as plates, wherein the lower part of the second board (25), i.e., a share, is elongated. Both boards (24, 25) are installed each on its holder (22, 23), wherein said holders are mounted on a frame (21), which is then through a connecting part installed on the tractor.

    ANORDNUNG ZUR STEUERUNG EINES HYDRAULISCHEN DREIPUNKT-KRAFTHEBERS
    9.
    发明公开
    ANORDNUNG ZUR STEUERUNG EINES HYDRAULISCHEN DREIPUNKT-KRAFTHEBERS 审中-公开

    公开(公告)号：EP4344523A1

    公开(公告)日：2024-04-03

    申请号：EP23196759.7

    申请日：2023-09-12

    申请人： Deere & Company

    发明人： Billich, Manuel

    IPC分类号： A01B59/06 ,  A01B63/10 ,  F15B13/00

    摘要： Anordnung (10) zur Steuerung eines hydraulischen DreipunktKrafthebers (12), umfassend einen Hydraulikzylinder (16) mit einer Arbeitskammer (18), die zur Veränderung der Hubstellung eines von dem hydraulischen Dreipunkt-Kraftheber (12) umfassten Unterlenkers mit unter Druck stehender Hydraulikflüssigkeit beaufschlagbar ist, sowie mit der Arbeitskammer (18) kommunizierende erste und zweite Sitzventile (24, 26), wobei das erste Sitzventil (24) zur Herstellung einer Zulaufverbindung (30) mit einer Hochdruckquelle (22) und das zweite Sitzventil (26) zur Herstellung einer Rücklaufverbindung (32) mit einem Hydraulikreservoir (28) ausgebildet ist. Hierbei ist jedem der beiden Sitzventile (24, 26) bezüglich seiner jeweiligen Durchflussrichtung (44, 46) ein Druckkompensationsventil (48, 50) vorgeschaltet.