| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for controlling the slant running of a bridge crane capable of being driven synchronously without using any rack. SOLUTION: The bridge crane has a rigid leg 12 and a rocking leg 13 fitted with wheels 18 and 19 to be driven by running motors 28 and 29, respectively, and a signal transmitter 22 and a receiver 23 are installed opposingly between the rigid leg 12 and the rocking leg 13, and the signal from he transmitter 22 is received by the receiver 23 for sensing the shift amount (a), and on the basis thereof, the running motors 28 and 29 are controlled. COPYRIGHT: (C)2004,JPO
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