| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electric operation device that can automatically adjust balance by a simplified constitution with a small number of part items, and is high in reliability, and to provide a working machine using the device. <P>SOLUTION: A first electric actuator 1 includes an electric motor M1 having a rotor position sensor S, and a second electric actuator 2 includes an electric motor M2 having no rotor position sensor. Outputs of the first electric actuator 1 and the second electric actuator 2 are synthesized by an uneven-length link 3. The electric motor M1 is in a positional relationship between a rotor which generates a maximum torque under its own operation condition and a magnetic field, and the electric motor M2 is brought into such a state that it generates a torque decreased from the maximum torque while being out of the positional relationship between the rotor which generates the maximum torque under its own operation condition and the magnetic field. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
