| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve such a problem that a hydraulic drive device or a hydraulic piping/hydraulic generation device are required in providing a power generator for hydraulic drive and a system is made complicated, and an insufficient condition of power generates during operation of the system only in the case of a battery, which prevents normal operation of the system. SOLUTION: In supplying power to a sensor 16 at a tip of a robot arm, a power generator 14 is driven to perform generation of power through a ratchet mechanism 13 being one way rotational force transmission means that extracts only one way rotational force from rotational power of a first insulation shaft 4, and the power is transmitted to a battery 15, and thereby power charged with the battery 15 is supplied to the sensor 16.</p> |
