| 摘要 |
PROBLEM TO BE SOLVED: To achieve a higher efficiency of the assembling work by assembling the ball tray without being screwed down on a board. SOLUTION: The pachinko machine 1 is constituted of boards 8 and 8' for decoration mounted on the front lower part and the ball trays 6 and 6' mounted on the front of the boards 8 and 8' while a plurality of engaging hole 9a, 9b and 9c is provided at proper points of the boards 8 and 8' and a plurality of protrusions 15, 15' and 15'a projecting upward is provided on the rear surface of the ball trays 6 and 6'. A plurality of retaining pieces 16 protruding backward from the rear surfaces of the trays is provided on the undersurface thereof so that the protrusions 15, 15' and 15'a and the retaining pieces 16 are engaged with the engaging holes 9a, 9b and 9c. COPYRIGHT: (C)2005,JPO&NCIPI
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