| 摘要 |
PROBLEM TO BE SOLVED: To make a conveyor truck system to be easily recoverable by means of three manual operative modes conformed to a state of system trouble. SOLUTION: Four control parts for on-line automatic operation 20, on-line manual operation 22, maintenance manual operation 26 and forced operation 28 are installed in a control section 14 of a conveyor truck, thereby making up them switchable by a remote control unit 12. In the on-line manual control part 22, it travels according to an indication of the remote control unit 12, and then it is transferred onto a specified station from a control part 10 in the case where on-line traveling is impossible due to accidental load shifting or the like. The maintenance manual control part 26 is transferrable in a gap with an optional station, and further it is used when a recovery fails to be done by the on-line manual operation. Likewise, in the case where the recovery can not be done by the maintenance manual control part 26, it is traveled to the optional position in disregard of an interlock of the system by the forced operation control part 28, whereby its transfer in an interval with the optional station is achievable in this way. |
