Patent ID: 8150551

Claim:
A charging apparatus for charging a battery mounted on a mobile robot, comprising: a charging power source; a control board which controls the charging power source; a wiring member having an end connected to the charging power source and another end connected to the mobile robot and following movement of the mobile robot, electric power being supplied from the charging power source via the wiring member to the battery mounted on the mobile robot; and a tension detector which detects a first predetermined tension applied to the wiring member and a second predetermined tension applied to the wiring member, wherein when the tension detector detects the first predetermined tension applied to the wiring member, the control board transmits a motion restriction signal to the mobile robot to instruct that the movement of the mobile robot should be restricted, and when the tension detector detects the second predetermined tension applied to the wiring member, the control board stops supply of the electric power from the charging power source.