| 摘要 |
PROBLEM TO BE SOLVED: To eliminate attachment defects due to the deflection of a game board when fixing an accessory or the like with a screw to the game board by an automatic screw tightening machine. SOLUTION: On the upper surface of the pallet truck 3, a plurality of reference columns 31-39 for horizontally supporting the back surface near four corners of the game board 1 are installed. Three of the plurality of reference columns are provided with fitting projection parts 31a-33a to be fitted to positioning reference holes formed on the back surface of the game board 1. In the range on the inner side of the reference columns 31-39, many holes 41a-41j for erecting columns are provided. Then, using some of the holes 41a-41j for erecting the columns, inner columns 50 and 50 whose support height is the same as the reference columns 31-39 are attached while adjusting a turning position by a bolt 55 via an oblong hole 56. COPYRIGHT: (C)2009,JPO&INPIT
|
