FORKLIFT
    1.
    发明公开
    FORKLIFT 有权
    GABELSTAPLER

    公开(公告)号:EP2752385A1

    公开(公告)日:2014-07-09

    申请号:EP12835206.9

    申请日:2012-02-07

    IPC分类号: B66F9/22

    摘要: A forklift is provided with: a forklift body (11) having front wheels (12) and rear wheels (13); a fork (15) supported at the front of the forklift body (11) through a mast (14) so as to be capable of moving vertically; a lift cylinder (17) capable of vertically moving the fork (15); a hydraulic pressure supply line (31) capable of supplying hydraulic pressure to the head-side chamber (R1) of the lift cylinder (17); a hydraulic pressure discharge line (34) capable of discharging hydraulic pressure from the rod-side chamber (R2) of the lift cylinder (17); and a switching valve (35) provided in the hydraulic pressure discharge line (34). When a cargo load on the fork (15) exceeds a load weight limit, a control device (26) causes the switching valve (35) to change the balance between the hydraulic pressure in the head-side chamber (R1) of the lift cylinder (17) and the hydraulic pressure in the rod-side chamber (R2) thereof. This limits the operation of the lift cylinder (17) to reduce pressure loss in the hydraulic pressure supply line, thereby preventing the deterioration of fuel consumption.

    摘要翻译: 叉车设有:具有前轮(12)和后轮(13)的叉车主体(11)。 叉子(15),其通过桅杆(14)支撑在叉车主体(11)的前部,以便能够垂直移动; 能够垂直移动叉子(15)的提升缸(17); 能够向提升缸(17)的前侧室(R1)供给液压的液压供给管路(31)。 能够从提升缸(17)的杆侧室(R2)排出液压的液压排出管路(34)。 以及设置在所述液压排出管路(34)中的切换阀(35)。 当叉子(15)上的货物负载超过负载重量限制时,控制装置(26)使切换阀(35)改变提升缸的头侧室(R1)中的液压之间的平衡 (17)和杆侧室(R2)中的液压。 这限制了提升缸(17)的操作,以减小液压供给管路中的压力损失,从而防止燃料消耗的劣化。