| 摘要 |
PROBLEM TO BE SOLVED: To enable the replacement of the guide rail frame alone with the game board mounted as intact on the body frame. SOLUTION: A game board unit 16 has the game board 4, a support body 18 and the guide rail frame 19. A guide rail frame locking member 22 is provided at each of the four corners of the support body 18. The respective guide rail frame locking members 22 have shaft parts 23 and locking knobs 24 turnably disposed at the respective tip parts of the shaft parts 23. The guide rail frame 19 has an outer rail 26 and a first and second inner rails 27 and 28 mounted on the frame body 25. Knob locking holes 25c are formed respectively at the four corners of the frame body 25. The guide rail frame locking members 22 are inserted respectively into the insertion holes 4c of the game board 4 and the knob retaining holes 25c of the guide rail frame 19 sequentially and when the locking knobs 24 are turned to the locking positions from the locking release positions with respect to the knob locking holes 25c, the support body 18 is locked on the guide rail frame 19 grasping the game board 4. COPYRIGHT: (C)2006,JPO&NCIPI
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