| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic oil tank for a construction machine capable of preventing failure caused by excessive increase and decrease of air pressure in an inside accompanied by inflow and outflow of hydraulic oil while suppressing an installation space, and capable of preventing deterioration of hydraulic oil in the inside.SOLUTION: A hydraulic oil tank 11 includes a tank body 12, and a bag body 13 provided in an inside 12a of the tank body 12. Hydraulic oil A is stored in the inside 12a of the tank body 12. An inflow port 121a is provided in an upper part of the tank body 12, and an outflow port 122a is provided in a lower part of the tank body 12. An opening 12e is provided on an upper surface 12b of the tank body 12. The bag body 13 is attached to the tank body 12 so that an opening end 13a is communicated with an outside O of the tank body 12 through the opening 12e of the tank body 12, and the bag body 13 is extendable in a vertical direction B in this state. |
