Hydraulic Lifting Device

Abstract: Provided is a hydraulic lifting device that can increase a degree of freedom in a layout of constituent components. A hydraulic lifting device 100 comprises a lift arm 2, a position control lever 6, and a position control transmission mechanism 20. The position control transmission mechanism 20 comprises a position control cam 210, a first position control shaft 220, and a second position control shaft 230. The first shaft 220 rotates around an axis A1 (and an axis A2) according to a displacement of the lever 6. The second shaft 230 rotates around an axis A3 according to a displacement of a feedback rod 9 when the lift arm 2 rotates in a relative manner. The cam 210 displaces a spool position according to respective rotation of the first and second shafts 220, 230. The axis A3 of the second shaft 230 is positioned on an upper side of the axis A1 of the first shaft 220.

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