| 摘要 |
PURPOSE:To prevent the reduction of the working efficiency by installing a hydraulic mechanism for electric power regeneration which can carries out the lowering operation and tilt operation of a fork, onto the hydraulic device for a battery fork. CONSTITUTION:The titled hydraulic device is equipped with a lift cylinder 8, tilt cylinder 15, pressurized oil feeding passage 13 for lift, control valve 7, control valve 12, and a branched stream connecting point 21. Further, an electric motor 3 is installed, and is driven by a battery 1 and drives a hydraulic pump 4 in the normal direction, and when a fork is lowered by a load over a prescribed value, the electric motor 3 is driven by the hydraulic pump 4 which is reversely driven by the pressurized oil which returns through a pressurized oil return passage 14 by the lift cylinder 8, and the electric power regeneration of the battery 1 is carried out. Further, when a lift lever 10 and a tilt lever 11 are simultaneously operated, a portion of the pressurized oil which is returned into a pump 4 through a pressurized oil feedback passage 14 from the cylinder 8 is sent under pressure into the cylinder 15 through the branched stream connection point 23. |
