ROTARY CONNECTOR DEVICE AND WORKING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a rotary connector device which needs a small installation space and in which a height of a working machine needs not to be high and provide a working machine using the device. SOLUTION: In the working machine provided with a rotary unit with a rotary device mounted on a running body having an electric driving unit, the rotary connector device is arranged in the rotary unit. The rotary connection device 16 makes a conduction of a power and a controlling signal between a power source and a controlling unit mounted on the rotary unit and an electric driving unit and an electric unit mounted on the running body. Inside a power conducting connection unit 20 composed of a slip-ring 27 and a brush, there are provided a controlling signal conducting connection unit 21 composed of a slip-ring having a smaller diameter than the slip-ring 27 and a brush. The power conducting connection unit 20 and the controlling signal conducting connection unit 21 are arranged so that each of the slip-rings can be concentric. COPYRIGHT: (C)2008,JPO&INPIT