Power supply device for working vehicles

The subject innovation is in the power to a mobile device driven by a power source for the pursuit electrical purpose is in the grounds certain working groups which relates to a power supply of the mobile device as a power source for electricity to the tray, the power source and connecting the mobile device by the path of the electrical wire to flow (variable) by a sliding operation by the pulling force of its own weight and the mobile unit of weight, securing a wide range of movement radius (work radius) of the mobile device as well, the electrical distribution of free space by so as to be positioned on the, to provide a power supply of the mobile device as a power source to an electrical shock hazard to prevent interference with the operator in accordance with the movement of the mobile device. The devised for achieving this end is moving in the grounds certain working groups according to the power supply for supplying power to the mobile device to perform a predetermined operation, the power source and the weight of the electrical wiring member for connecting the mobile unit weight and to the left / right slide along the boom by the pulling power of the mobile unit and a power supply to drive the free space; To be installed on the mobile device pulling the electric wire drawn out into free space through the power supply characterized by a power supply portion adapted to pass to the power source of the mobile device. The present design is by the path of the electric connecting the power supply and the mobile device wiring to flow (variable) by a sliding operation by the pulling force of its own weight and the mobile unit of weight, a wide range of movement radius (work radius of the mobile unit ) was by having located on the other hand, the electric wiring is a free space to improve the workability, so as to avoid an electric shock of interference with the operator in accordance with the movement of the mobile device as well as to improve the safety of the operation is in progress so as to obtain, the electrical wire when the distance between the power supply and the mobile device is obtained far the effect to prevent the dripping interfere with the operation.