| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to mitigate a load applied on a worker, save installation space in the case of using a machine, reduce cost and prevent a work from being deformed. SOLUTION: The seam welding equipment 2 comprises: two roller electrodes 25, 27; a power source 3 for performing energization to the two roller electrodes 25, 27; an energization control means 66 for performing the change in the timing of ON/OFF of the energization to the two roller electrodes 25, 27; a pressurization means 24 for pressurizing the roller electrode 25 toward the roller electrode 27; and a pressurization control means 43c where, synchronously with the ON of the energization to the two roller electrodes 25, 27 in the power source 3 by the energization control means 66, the pressurizing force of the roller electrode 25 by the pressurization means 24 is increased, and further, synchronously with the OFF of the energization to the two roller electrodes 25, 27 in the power source 3 by the energization control means 66, the increased pressurizing force of the roller electrode 25 by the pressurization means 24 is reduced. COPYRIGHT: (C)2007,JPO&INPIT
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