| 摘要 |
PROBLEM TO BE SOLVED: To facilitate an interval examination process by a maker and the nail interval adjustment in a game shop by driving a pair of nails on a specific position of a game board at an interval narrower than a diameter of one game ball, and then enlarging an interval of the pair of driven nails wider than the diameter. SOLUTION: In a nailing process of a step 101, a game board is positioned and loaded on an XY table of a nailing machine, the nailing machine extracts the nailing position and order by the nailing data corresponding to kinds of machines of the game board stored in advance in a control part for controlling the XY table, a specific position of the game board is located and stopped just under a nail holder mechanism and a hammer mechanism of the nailing machine, and the nails supplied and supported from a nail supply part to the nail holder mechanism is automatically driven into the game board one by one by the hammer mechanism. In this case, a pair of nails are driven into the game board with a minus gage as a nail interval narrower than a diameter of one game ball. Then the nail interval of the pair of nails driven into the game board is enlarged to be wider than the diameter of one game ball in a widening process of a step 102.
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