Working machine

A working machine comprising;

• a vehicle body, a counterweight disposed at the rear of the vehicle body, a support bracket fixed to the vehicle body, a main arm with a base end part pivotally supported by the support bracket and a tip part pivotally connected to the counterweight via a connecting member, and a hydraulic cylinder with a base end part pivotally supported by the support bracket and a tip part pivotally connected to the tip side of the main arm;
• furthermore, the working machine can attach the counterweight to the vehicle body by rotating the main arm upward through the extension of the hydraulic cylinder, and remove the counterweight from the vehicle body by rotating the main arm downward through the compression of the hydraulic cylinder;
• wherein
• an auxiliary arm is attached on the support bracket, which pulls in the counterweight towards the support bracket side by interlocking with the upward rotation of the main arm due to the extension of the hydraulic cylinder.