To provide a ball path changing trough for an island board by forming a bypass section having a plurality of staircase-like step ball paths in the nearly funnel-shaped box of the overflowing ball returning device of the island board, suspending a horizontal inflow trough between an upper tank and the bypass section, forming a nearly suspending outflow trough at the ball path outlet of the bypass section, and arranging the outflow trough in an expansion gap section between a machine and an island board support.
Balls are linearly dropped in the shortest distance by the narrow outflow gutter 30 at a narrow limited place in the pachinko island board A, thus the number of part items is reduced, and this pachinko machine is sharply simplified in maintenance and control. Troubles on the back mechanism of the pachinko machine and on other apparatuses can be resolved. Standard parts can be provided for simple maintenance, and the economical effect is large.
WAKANA YOSHIO
TAYUI MAKOTO
TAKEUCHI HIDEKATSU
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