Roulette playing device

A roulette playing device comprising a rotary roulette wheel having a plurality of ball pockets with betting marks;

• a substantially circular runway inclined and surrounding the roulette wheel;
• a substantially circular wall provided around the outer edge of the substantially circular runway continuously thereto;
• at least one release opening being formed in said substantially circular wall at a higher position than a ball running on the outermost circumference of said substantially circular runway;
• at least one ball sensor for detecting the passing of a ball running on said substantially circular runway, said at least one sensor being provided on said substantially circular wall at a certain interval;
• detecting means for detecting based on outputs of said at least one ball sensor a time or an average speed between the detection of the ball by said at least one ball sensor and redetection by said at least one ball sensor;
• and
• control means for outputting a NO BETTING instruction when a detected value by said detecting means reaches a preset value.

A roulette playing device comprising:

• a rotary roulette wheel having a plurality of ball pockets with betting marks, said wheel being rotatable about a rotational center;
• an inclined, substantially circular runway surrounding the roulette wheel;
• a substantially circular wall provided around the outer edge of the substantially circular runway continuously thereto;
• a projecting edge surrounding an upper side of said substantially circular wall and extending toward said rotational center;
• and
• at least one release opening being formed in said substantially circular wall at a position higher than a position of the wall on which a ball runs on the outermost circumference of said substantially circular runway and being formed beneath said projecting edge, the ball being released from the opening to said runway, said runway and said wall meeting at a junction which has a radius of curvature smaller than a radius of the ball used in said device.