To provide a game machine which can be constituted inexpensively and can extremely effectively prevent a fraudulent replacement and fraudulent alteration of a control element.
In a controller 1 of a Pachinko machine, screw-holding parts 9a, 9b, ..., are provided on the right and left of an upper cover 6 so as to be easily cut, and the upper cover 6 and a lower cover 5 are put together by threadingly engaging the upper left and lower right screw-holding parts 9a, 9a to screw engaging bodies 20, 20 by one-way clutch type sealing screws 13 provided with a rotation transmission mechanism. Meanwhile, in the screw-holding parts 9b, 9b, ..., non one-way clutch type sealing screws 14 are held. In the sealing screws 13, the rotary force is transmitted to a male threaded part 61 and the male threaded part is rotated only when a rotary operation member is rotated clockwise. Meanwhile, the sealing screws 14 are rotated only when pressing a flat-blade screwdriver to a vertical surface of a screw projection and rotating it in the right direction.
NAKAGAKI KENICHI
| JP2000097221A | 2000-04-04 | |||
| JP2002224383A | 2002-08-13 | |||
| JP2007032611A | 2007-02-08 | |||
| JP2008142121A | 2008-06-26 | |||
| JPH058062U | 1993-02-02 | |||
| JP2009136368A | 2009-06-25 | |||
| JP2000145745A | 2000-05-26 | |||
| JP2000097221A | 2000-04-04 | |||
| JP2002224383A | 2002-08-13 | |||
| JP2007032611A | 2007-02-08 | |||
| JP2008142121A | 2008-06-26 | |||
| JPH058062U | 1993-02-02 |
Kyoichi Ueda
Keiya Inoue
Kiyotaka Sonoda