Patent ID: 6616464
Filing Date: 2003-09-09
Classification: A63H

Abstract:
A robot apparatus comprising:one or more driving units; a main body to which the driving units are mounted and including means for controlling the driving units; and connection means for connecting the driving unit to the main and including respective connectors each having connecting elements corresponding to ground, power and data lines configured in such a manner that the ground line is disconnected later than the power and data lines when the respective driving unit is dismounted from the main body and said ground line is connected earlier than the power and data lines when the driving unit is mounted on the main body, wherein said connection means configuration allows a power source, located in the main body and for powering said driving unit via said connectors, to remain turned on during the time that the driving unit is being either mounted on or dismounted from said main body; while minimizing the chance of a short-circuit or lost data, and the need to reinitialize the robot.