| 摘要 |
PROBLEM TO BE SOLVED: To expand a play area in a pinball game machine by improving a structure (a locking device) for locking/unlocking an open/close frame in the closed state relative to an outer frame and for locking/unlocking a glass door in the closed state relative to the open/close frame. SOLUTION: A first locking mechanism 20 is movably attached to the outer frame 2 to lock/unlock the open/close frame 3 in the closed state relative to the outer frame 2. A second locking mechanism 40 is movably attached to the open/close frame 3 to lock/unlock the glass door 4 in the closed state relative to the open/close frame 3. An unlocking mechanism 60 is attached to the outer frame 2 to be selectively operated at a first operation position to shift the first locking mechanism 20 from the locking position to the unlocking position or at a second operation position to shift the second locking mechanism 40 from the locking position to the unlocking position. A key cylinder 80 is attached to the outer frame 2, and the unlocking mechanism 60 is operated selectively either at the first operation position or at the second operation position according to the key operation. COPYRIGHT: (C)2009,JPO&INPIT
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