| 摘要 |
In a frictional spot joining where plural overlapping metal members (63,64) are jointed with a joining device comprising a rotating tool (16), a receiving tool (17) disposed on a rotational axis (X) of the rotating tool (16) and a drive device to rotate and move the rotating tool (16) in a pushing direction, a holding member (90) is provided on a side of the receiving tool (17), which has a restriction portion (92) to restrain a movement of the receiving tool (17) in a direction perpendicular to the rotational axis (X), and the joining device is moved by a moving device such that the receiving tool (17) is disposed at the restriction portion (92). Accordingly, the rotational runout of the rotating tool (16) can be restrained effectively with a simple structure of a properly small-sized rotating tool (16) and receiving tool (17).
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