| 摘要 |
PROBLEM TO BE SOLVED: To provide a feed system comprised of a crane and a travelling feed truck which facilitates lane changing of the crane by installing a lateral travelling feed truck to supply electric power for the lane changing. SOLUTION: A travelling linkage mechanism 4A linking the crane 2 and the travelling feed truck 3A includes: a receiving member 10 installed in the travelling feed truck 3A; and a push member 11 installed in the crane. The push member 11 efficiently transmits force in a travelling direction x to the travelling feed truck 3A, but does not transmit force in a transverse direction y and force in torsional direction, and has a highly durable structure. COPYRIGHT: (C)2010,JPO&INPIT
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