JPH10263149A - Center case for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a pachinko machine to direct more number of balls in the either left or right direction, even if the machine is placed in the center of a play ground. SOLUTION: This pachinko machine is provided with a mounting base 15 to be mounted on the surface of a playing board and an armor part 16 protruding ahead from the surface of the mounting base like a canopy and its upper surface's tilting downward in each of the left and right direction, the above- mentioned armor part 16 is left and right asymmetrical by arranging the top part (a protrusion 36) of the upper tilted surface one-sidedly to either left or right location, and a guiding member 17 for guiding a ball is arranged under the tilting lower edge of the armor part located on the opposite side of the one-sided top part so as to be swingable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center case mounted on a ball-and-ball game machine such as a pachinko machine.

[0002]

2. Description of the Related Art In a pachinko machine, which is a typical ball-and-ball game machine, a center case is attached to the center of a game area in which a ball flows down, and an armor provided in an eave-like shape on the center case allows the ball to flow down from above. The ball that has flowed is distributed to either the left or right, thereby preventing the ball from blocking the front surface of the variable display device etc. provided below the armor part,
Alternatively, a sphere is introduced into the concave chamber of the center case from a sphere introduction portion provided in a part of the center case. For this reason, in the conventional center case, the shape of the armor part is a bilaterally symmetric mountain shape, and the top of the gentle inclined upper surface is located almost in the center of the game area, so that the ball flowing down from above is placed on the armor part. It is configured to flow almost evenly on the left and right once it is placed. Since the variable display device and the like are important parts that affect the game, they are required to be arranged at the center of the game area. As a result, the center case is arranged at the center of the game area.

[0003]

However, when the center case is arranged in the center of the game area, when the ball is fired, the ball is generally aimed at the left side of the game area in order to stabilize the flow of the shot ball. Although unfamiliar players, such as beginners, fire often aiming at the center of the game area, they may lack a sense of fairness.

In the case where a guiding member for guiding the ball into the recessed room is provided at the center of the game area, the guiding member is provided on the left and right sides of the center case just because the ball is distributed right and left by the armor portion and flows down. In addition, it is necessary to implant a group of obstacle nails that can change the flowing direction of the ball toward each guide member on both the left and right sides, and to adjust them individually, which makes the adjustment complicated. If there are many places to adjust obstacle nails, the time and labor required for the adjustment work and the burden on the game store will increase in recent years, in which it is becoming difficult to secure skilled workers.

When the balls are guided from both the left and right guide members and flow into the concave chamber, there is a high possibility that these balls collide in the concave chamber. It is not preferable that the guide member is provided only in one of the center cases. Only one half of the ball distributed to the left and right sides of the game area is given a chance to be guided into the recessed room, which diminishes the player's expectation of winning.

Further, if the armor is always symmetrical,
Due to design limitations, it is difficult to adopt a novel design.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a center case of a ball and ball game machine which can be arranged in one of the right and left directions even if it is arranged at the center of a game area.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and has a mounting base attached to the surface of a game board, and a mounting base attached to the front of the mounting base. In the center case of a ball-and-ball game machine that has an armor portion that protrudes like an eaves and whose upper surface is inclined downward in the left and right direction, and distributes the flowing ball to the left and right by the upper surface of the armor portion, This is a center case of a ball and ball game machine in which the top is disposed at a position deviated to one of the right and left and is asymmetrical in the left and right.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a guide member for guiding a ball is disposed below the inclined lower end of the armor located on the side opposite to the bias of the top. This is a center case of a ball and ball game machine.

According to a third aspect of the present invention, a concave chamber having a front opening communicating with an opening formed in the mounting base is formed on the back side of the mounting base, and a ball is guided to the upper surface of the guide member toward the concave chamber. 3. The center case of a ball-and-ball game machine according to claim 2, wherein a guiding path is formed, and the ball is guided into the concave chamber by the guiding path.

According to a fourth aspect of the present invention, the guide member pivotally supports a middle portion in the left-right direction, and is provided with a swing range regulating member so as to be swingable within a predetermined range. The center of the ball game machine, wherein the ball-side gaming machine stops with the chamber-side end raised, and falls on the concave-chamber-side end when the ball rolls on the taxiway and passes through the support shaft. Case.

According to a fifth aspect of the present invention, the concave chamber is inclined in the left-right direction, and at least the inclined lower end portion is inclined down to the opening side of the mounting base, and along the mounting base side of the bottom surface. An obstacle member that stands up and prevents the ball on the bottom from flowing forward from the opening, and an obstacle member located at the position corresponding to the lower end of the bottom of the bottom and the ball is released from the bottom to the game board surface side And a ball discharge port that allows the ball to be played by rolling the ball guided by the guide member on the bottom surface of the concave chamber and discharging the ball from the ball discharge port to the surface of the game board. It is a center case of a ball game machine.

According to a sixth aspect of the present invention, there is provided a sphere which has a guide projection projecting from the obstacle member near the ball discharge port toward the back of the concave chamber on the bottom surface, and which rolls on the bottom surface in the left-right direction. The center case of a ball game machine according to any one of claims 2 to 5, wherein the center case is adapted to be guided to the inner side of the concave chamber by contacting the guide projection.

According to a seventh aspect of the present invention, the projection is formed upward at the top of the armor portion.
It is a center case of the ball game machine described in any one of the above.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a game board 1 mounted on a pachinko machine, which is a typical ball-and-game machine, and FIG. 2 is a front view of a center case.

On the surface of the game board 1 shown in FIG. 1, there is formed a game area 3 which is divided into a substantially circular shape by a partition member such as a guide rail 2 or the like. A display device 5 is provided, a starting port 6 is provided below the center case 4, a big winning opening 7 is provided below the center case 4, and a prize-winning tool 9 and a windmill 10 are provided in the other game areas 3. At the same time, many obstacle nails are planted. In the pachinko machine equipped with the game board 1, when the ball wins the starting port 6, the variable display device 5 starts a variable display game in which a three-digit design or the like is converted and displayed at a high speed, and when the conversion display is stopped. When the symbol stops in a predetermined manner such as "7, 7, 7", a "big hit" occurs and a special game right is generated. When the special game is started, the special winning opening 7 is opened and a ball is easily won. You can play the game.

The center case 4 includes an attachment base 15 attached to the surface of the game board 1, an armor portion 16 projecting forward from the surface of the attachment base 15 in an eave-like shape, and an upper surface inclined downward in the left-right direction. The guide member 17 disposed below one inclined lower end and the concave chamber 20 formed on the back side of the mounting base 15 below the armor section 16 are the main constituent members in the present embodiment. Front wall 21 in front
The display section of the variable display device 5 is exposed in the window section 22 that is opened. Therefore, when the center case 4 is mounted on the surface of the game board 1, the opening 23 formed in the center of the variable display device 5 in the left-right direction, that is, the mounting base 15.
The window 22 is attached so that the common center in the left-right direction is aligned with the center of the game area 3 on the left and right. For this reason, when the player sits toward the pachinko machine, the display unit of the variable display device 5 is located in front of the pachinko machine.

The mounting base 15 has a horizontally long elliptical opening 2.
The upper part of the opening 23 has an upper and lower length that increases as it goes to one side (right side), and is formed into a shape imitating an angel fish as a whole, and fastening holes 24 are formed on the periphery. Has been established in several places. The lower opening edge of the opening 23 is, as shown in FIG.
In the present embodiment, it is a portion that functions as an obstruction member 25 described later, and is provided at a substantially center of the left and right sides of the opening edge, in other words, at the lowest portion of the opening edge, a notched ball discharge port 26 with the edge further lowered one step. As shown in FIGS. 4 and 3B, a substantially triangular convex piece protrudes rearward from the upper end of the back surface of the opening edge on the right side of the ball discharge port 26 as the guide convex portion 27. Further, as shown in FIG. 3, the wall portion 30 is formed in a short cylindrical shape from the opening edge of the opening portion 23 toward the rear and reinforced.
Then, a substantially frame-shaped concave chamber case 31 is fitted into the opening 23 surrounded by the short cylindrical wall section 30 to form the concave chamber 2.
0 is formed.

The concave chamber 20 has an opening 23 in the mounting base 15.
The bottom surface 32, the left and right side surfaces 33, 33, and the ceiling surface 34 are made continuous according to the shape of the bottom surface 32 to form a horizontally long elliptical depth with a series of smooth surfaces.
3. A front wall 21 is formed continuously with each rear end of the ceiling surface 34, and a substantially rectangular window 22 is formed on the front wall 21. The bottom surface 32 is a downwardly inclined surface that is gently curved from left and right to the center according to the lower shape of the above-mentioned oblong ellipse, and is gradually downwardly inclined toward the front opening side. The front opening side edge of the bottom surface 32 is set to be lower than the lower opening edge of the opening 23 of the mounting base 15. It is set to be at the same height as the edge or at a position slightly higher than the edge. Therefore, the mounting base 1
As shown in FIG. 3, the lower edge portion of the opening 5 rises along the mounting base 15 side of the bottom surface 32, and a wall-like shape that prevents the sphere on the bottom surface 32 from flowing forward from the opening portion 23. The ball discharge opening 26 faces the position corresponding to the inclined lower end portion of the bottom surface 32, and the guide projection 27 formed integrally with the mounting base 15.
Are located slightly above the bottom surface 32.

Next, the armor part 1 to be attached to the attachment base 15
6 will be described. The armor portion 16 is formed by a curved surface whose upper surface is gently inclined downward from the top to the left and right, and the top is biased to one of the left and right (right side in the drawing) from the left and right center of the opening 23 of the mounting base 15. Placed in
It is a left-right asymmetric hollow member whose thickness gradually increases as it goes to one side (right side) in accordance with the upper part of the mounting base 15, and a ridge 36 as an upward projection is provided on the top of the curved upper surface in the front-rear direction. It is integrally molded. Therefore,
The upper surface of the armor portion 16 is clearly divided left and right with the ridge 36 as a boundary, and the length on the left side of the ridge 36 is longer than the length on the right side by the deviation of the ridge 36. In addition, since the armor section 16 of the present embodiment also functions as a decorative lamp,
It is made of a translucent plastic and has a large number of fine concave and convex grooves having a lens function on its inner surface. In order to attach the armor portion 16 to the mounting base 15, the armor portion 16 is fixed from the back side of the mounting base 15 by fixing means such as screwing. When attached in this manner, the top of the armor portion 16 is located on the right side of the left and right center of the opening 23.

Next, the guiding member 17 will be described.
As shown in FIGS. 2 and 5, the guide member 17 includes a horizontally long front end plate 40 extending in a vertical direction, a left and right ball mounting plate 41 integrally formed on the back surface of the front end plate 40, and a ball mounting plate 41. Board 4
1, a support shaft 42 supporting the middle part in the left-right direction, and a surface on the ball mounting plate 41 is inclined downward toward one end (the right side in the figure and toward the concave chamber 20) to become a guide path 43, The front end plate 40 prevents the ball from spilling from the taxiway 43.
Rises higher than the taxiway 43 and the taxiway 4
At the lower end of the slant, a falling direction regulating portion 44 for changing the flowing direction of the ball toward the interior of the concave chamber 20 is provided upright at the lower end of the inclination so that the ball rolled on the upper part falls toward the interior of the concave chamber 20. The guide path 43 is slightly inclined downward toward the interior of the concave chamber 20. Further, the guide member 17 swings as the ball rolls on the guide path 43, and a swing range regulating pin 45 protrudes rearward as a swing range regulating member for regulating the swing range. I have.

In order to attach the guide member 17 to the attachment base 15, the armor portion 16 located on the side opposite to the deviation of the top portion is used.
The support shaft 42 is loosely fitted in a bearing formed at a position spaced apart from the lower end (the lower left end in the drawing) of the mounting base 15 at an interval through which the ball can pass, and is inserted into an arc-shaped long hole 46 opened in the mounting base 15. The swing range regulating pin 45 is loosely fitted, and E is attached to the rear end of the support shaft 42.
Attach it with a ring or the like.

In this manner, the guide member 17 is attached to the mounting base 1.
5, the guide member 17 has an outer end (the inlet-side end 43b) projecting outward from the end of the armor 16, that is, toward the game area 3, and the ball rests thereon. In the normal state, the urging force by its own weight raises the concave portion 20 side end (outlet side end 43a) and lowers the outer end to stop. When the ball rests on the inlet-side end 43b of the guideway 43, the ball rolls toward the outlet-side end 43a due to the downward inclination of the guideway 43, and passes through the support shaft 42. Due to its own weight, the guide member 17 swings clockwise about the support shaft 42.

In the present embodiment, a step 47 is formed in a portion passing through the support shaft 42, and when the ball passes through the support shaft 42 and falls on the step 47, the guide member 17 is imposed by the impact force of the drop. Is configured to swing reliably. Also,
Since the guide path 43 on the downstream side of the step 47 faces the inside of the concave chamber 20, this portion is inclined downward toward the concave chamber 20, that is, toward the rear.

When the ball further rolls and reaches the outlet end 43a, the ball is guided by the flow-down direction regulating portion 44, changes the flow direction approximately 90 °, and flows down toward the concave chamber 20 side. , Falls on the bottom surface 32 in the concave chamber 20. Guiding member 17
When the ball falls from above, the guide member 17 returns counterclockwise around the support shaft 42 by its own weight, swings, and returns to the initial state in which the introduction port side end 43b is lowered.

The range in which the guide member 17 swings is a range in which the swing range regulating pin 45 can move inside the arc-shaped long hole 46. The guide member 17 in the present embodiment includes the front end plate 4.
Since 0 is formed in a shape imitating the mouth of a fish, when the ball is swung each time a ball is introduced, the shape of the mouth of the fish opens and closes in combination with the shape of the mounting base 15. That is, each time a ball is introduced into the recessed chamber 20 by the guide member 17, it is possible to show the player that the mouth of the fish moves and swallows the bait (ball). For this reason, the movement of the guide member 17 exerts a decorative effect, and it is possible to provide the player with a smooth playing pleasure. Also,
As will be described later, the ball introduced into the concave chamber 20 by the guide member 17 is a flow of a ball that leads to a “big hit” for the player, and therefore, the expectation of the player is enhanced in combination with the decorative effect. Can be.

Next, the flow of a ball in a pachinko machine equipped with the center case 4 having the above-described configuration will be briefly described. In a pachinko game, the basic procedure of launching a ball is to aim at a slightly left side of the center of the game area 3, but a beginner or the like often launches aiming at the center. In such a case, conventionally, the armor of the center case is symmetrical, so that the ball fired aiming at the center has almost the same probability of being distributed left and right by the center case, as a result Is
It has been difficult to increase the probability of winning to the starting port and the like below the center case, which is easier to win when flowing down the flow path from the left side. However, in the pachinko machine according to the present embodiment, even when fired aiming at the center, since the top of the armor portion 16 is biased, more balls are distributed to the side opposite to the bias direction. , It can eliminate the inexperienced beginner.

The balls distributed to the right side by the armor portion 16 flow down without being guided into the concave chamber 20, but the more balls distributed to the left side are provided with the guiding member 17 at the lower inclined lower end of the armor portion 16. Since it is provided, there is given a chance to be placed on the guide member 17 and introduced into the concave chamber 20. In the embodiment of FIG. 2, the obstacle nails 50 are planted between the inclined lower end of the armor portion 16 and the end of the guide member 17. After passing, it is placed on the guide member 17.

The balls that can pass between the obstacle nails 50 and 50 are not limited to the balls distributed to the left side by the armor portion 16, and are fired aiming at the left side of the game area 3. Balls that have flowed down without being sorted to 16 are also given many opportunities to be placed on the guide member 17. In the embodiment shown in FIG. 2, even if the ball cannot pass between the obstacle nails 50 and 50 on the entrance side of the guide member 17 and cannot be placed on the guide member 17, the ball cannot be used. The flow path configuration by the windmill 10 and the obstacle nail row 51 below provides a chance to win the starting port 6 arranged below the center case 4.

When the ball is placed on the guide member 17, as described above, the ball rolls toward the concave chamber 20 due to the downward inclination of the guide path 43, and when passing through the support shaft 42, the ball is guided by the weight of the ball. The member 17 swings clockwise. When the ball further rolls and changes direction at the inclined lower end, the ball enters the concave chamber 20 and falls on the bottom surface 32. After the ball falls, the guiding member 17
Swings back by its own weight and returns to the initial state.

The ball falling on the bottom surface 32 in the concave chamber 20 is
Since the falling point is an inclined upper portion which is one side of the curved bottom surface 32, it flows down toward the other side (from the left side to the right side in the drawing) due to the downward inclination of the bottom surface 32. In this case, the ball that has fallen from the guide member 17 flows down toward the interior of the recessed chamber 20, and thus immediately begins to flow down on the bottom surface 32, and the obstacle member 25 immediately starts flowing down.
And flows down from the center of the front-rear width of the bottom surface 32 to the deep portion. Therefore, the ball discharge port 2 only falls from the guide member 17 and flows down the left half of the bottom surface 32.
6 is hardly released to the surface side of the game board 1.

The sphere accelerated by flowing down on the left half bottom surface 32 passes through the lower end of the bottom surface 32 (the central portion in the left-right direction),
The ball runs up and runs on the right half bottom surface 32, and the ball decelerated by this climbing inclination reverses on the way, and then flows down from the right side to the left side. At this time, the ball approaches the obstacle 25 due to the downward inclination of the bottom surface 32 or the obstacle 2
5, and comes into contact with the guide projection 27 near the lower end of the slope.

When the ball comes into contact with the guide convex portion 27, the guide convex portion 27 protrudes toward the depth of the concave chamber 20, so that the flowing ball is guided in the downward flow direction toward the depth of the concave chamber 20. I do. Therefore, the sphere is far from the obstacle member 25 and flows down the depth of the bottom surface 32 toward the left, and the sphere flowing down the right half bottom surface 32 and the sphere discharged from the sphere discharge port 26 as it is is reduced. it can. The sphere that has passed through the lower end of the slope, ran up the bottom half 32 of the left half, and has been inverted and flowed down again, abuts the guide projection 27 and is guided again to the back, rushes up the bottom half 32 of the right half again, Alternatively, even if it hits the guide projection 27, it cannot pass through the guide projection 27, and is discharged from the ball discharge port 26 to the surface side of the game board 1.

As described above, in the present embodiment, the sphere which has flowed down by the guide projection 27 provided near the inclined lower end of the bottom surface 32 is guided to the depth side of the concave chamber 20, and the bottom surface 32 is moved right and left. The length of stay on the bottom surface 32 is extended, thereby making it easier for the player to visually recognize. In addition, since the guiding member 17 for guiding the ball into the concave chamber 20 swings due to the placement of the ball and causes the ball to drop into the concave chamber 20, randomness can be imparted to the momentum of the introduced ball. it can. Furthermore, since the ball is guided by the guiding member 17 and enters the recessed chamber 20, the ball reciprocates right and left on the bottom surface 32 and is discharged from the ball discharge port 26, all of the ball can be visually recognized. Compared to the conventional warp-type ball introduction structure in which the ball cannot be seen while flowing down the middle of the flow path and is suddenly introduced into the recessed chamber 20, the whereabouts of the ball can be safely determined. I can see it.

Since the ball discharged from the ball discharge port 26 flows down almost vertically in comparison with the ball bounced off the nail, it is easy to win the starting port 6 disposed below the ball discharge port 26. . Therefore, the ball guided into the concave chamber 20 of the center case 4 by the guide member 17 has a higher probability of winning in the starting port 6 than the ball flowing down another flow path, and for the player. This is a ball that increases the chances of a variable display game, which is a premise of “big hit”.

Note that the variable display device 5
If the ball continues to win the starting port 6 while the variable display game is being played, the right of the variable display game is stored (reserved) up to a predetermined number (for example, four). It is visually displayed on the stored number display 52 provided in the center case 4.

In the above-described embodiment, the variable display game is played by the variable display device 5 provided in the front window portion 22 of the recessed room 20 when the ball wins the starting port 6, but the present invention is not limited to this. Instead, the variable display device 5 is provided with a 7-segment variable display 5 ′ on another portion, for example, on the right side of the armor portion 16, and decorative display is performed on the display of the front window portion 22 of the concave room 20. You may comprise.

Note that the ball game machine in the present invention is not limited to a pachinko machine, but may be a sparrow ball game machine, an arrangement ball game machine, or the like. Further, a winning opening may be provided in the concave chamber 20 so that the ball guided by the guide member 17 wins in the concave chamber 20.

[0039]

According to the present invention as described above, the following effects can be obtained. That is, according to the first aspect of the present invention, the armor projecting in the shape of an eave from the surface of the mounting base and having the upper surface downwardly inclined in the left-right direction is disposed at a position where the top of the inclined upper surface is biased to one of the right and left. As a result, even if the mounting position of the center case is set at the center of the game area, more balls can be distributed to the side opposite to the deviated direction. Therefore, even if you fire at the center of the game area when shooting a ball, it will be the same as firing in the direction of Joseki Street, even if you are an unfamiliar player such as a beginner, The launch of the ball matches the characteristics of the gaming machine. In addition, since it is not necessary to make the shape symmetrical, the degree of freedom in design can be increased.

According to the second aspect of the present invention, since the guiding member for guiding the ball is disposed below the inclined lower end of the armor located on the side opposite to the deviation of the top, more balls are provided by this guiding member. , Which can enhance the interest in the game, such as increasing the expectation of winning. Further, since the guide member is disposed only on one of the left and right sides of the center case, adjustment of the obstacle nail related to the flow path of the ball to the guide member may be performed only on one of the right and left sides. Therefore, the nail adjustment operation can be simplified.

According to the third aspect of the present invention, a concave chamber whose front opening communicates with the opening formed in the mounting base is formed on the back side of the mounting base, and a ball is guided on the upper surface of the guide member toward the concave chamber. Since the guide path is formed and the ball is guided into the concave chamber by the guide path, the movement of the ball guided into the concave chamber by the guide member can be continuously shown to the player. Therefore, the player does not lose track of the ball,
You can play games with confidence.

According to the fourth aspect of the present invention, the guide member pivotally supports a middle portion in the left-right direction and is provided with a swing range regulating member so as to be swingable within a predetermined range. When the ball is guided into the concave chamber, it stops with the side end raised, and when the ball rolls on the guide path and passes through the support shaft, it descends the concave chamber side end. Guiding member 1
7 surely swings. Therefore, the player is guided by the guiding member 1
It is easy to visually confirm that the ball has been guided into the recessed chamber by the swing of 7. In addition, the swinging of the guide member 17 can enhance the visual decoration effect and change the game.

According to the fifth aspect of the present invention, the concave chamber is inclined in the left-right direction, and at least the inclined lower end portion is inclined downward toward the opening of the mounting base, and stands along the mounting base side of the bottom surface. An obstacle member that prevents the ball on the bottom from flowing forward from the opening and an obstacle member at a position corresponding to the inclined lower end portion of the bottom are opened to the ball from the bottom to the game board surface side. And a ball discharge port that allows the ball to be guided by the guiding member to roll on the bottom surface of the concave chamber and discharge the ball to the game board surface from the ball discharge port, so that the ball is guided into the concave chamber. It is possible to show the player that the ball has reciprocated rolling right and left on the bottom surface, and also can be seen to be released from the ball discharge port after reciprocating rolling on the bottom surface. Therefore, it is possible to prevent the player from overlooking the fact that the ball has been guided into the concave room, and it is possible to surely increase the player's expectation of winning.

Further, since the introduced ball is released from the ball discharge port, if a winning port is arranged below the ball discharge port, the probability of winning the winning port can be increased, which also makes the game more interesting. Can be further increased. Then, the ball released from the ball discharge port easily flows without falling off, so that it is easy to win a prize port below the ball discharge port, thereby providing a ball and ball game machine which is preferred by players.

According to the sixth aspect of the present invention, the guide projection protruding from the obstacle member near the ball discharge port toward the back of the concave chamber is disposed on the bottom surface, and the ball rolling on the bottom surface in the left-right direction. Hits the guide convex part and is guided to the back side of the concave chamber,
The time for rolling on the bottom surface in the left-right direction can be lengthened. Therefore, it becomes more easily visible to the player,
It is possible to reliably prevent the introduced ball from being overlooked.

According to the seventh aspect of the present invention, since the protrusion is formed upward at the top of the armor portion, it is possible to prevent the ball from stopping at the top, and, for example, the ball that has flowed down to the left inclined upper surface is momentum. I climbed the left sloped upper surface against the slope, finally climbed the top and reached the right sloped upper surface,
It is possible to reduce such a situation that the water flows down and is distributed to the right side. That is, the ball can be reliably distributed to the left and right according to the position of the ball flowing down to the upper surface of the armor portion.

[Brief description of the drawings]

FIG. 1 is a front view of a game board of a pachinko machine.

FIG. 2 is a front view of a center case.

3A is a cross-sectional view of a bottom portion of the concave chamber indicated by an arrow A in FIG. 2, and FIG. 3B is a cross-sectional view of a bottom portion of the concave chamber indicated by an arrow B in FIG.

FIG. 4 is a plan view of an inclined lower end portion of a bottom surface.

FIG. 5 is a plan view of a guide member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gaming board 2 Guide rail 3 Gaming area 4 Center case 5 Variable display device 6 Starting port 7 Big winning opening 9 Winning prize 10 Windmill 15 Mounting base 16 Armor part 17 Guiding member 20 Concave room 21 Front wall 22 Window 23 Opening 24 Fixing hole 25 Obstacle member 26 Ball discharge port 27 Guide convex part 30 Wall part 31 Recessed chamber case 32 Bottom surface 33 Side surface 34 Ceiling surface 36 Protrusion as projection 40 Front end plate 41 Ball mounting plate 42 Support shaft 43 Guideway 44 Downflow direction Regulator 45 Rotation range restriction pin 46 Circular arc-shaped hole 47 Step 50 Obstacle nail 51 Obstacle nail row 52 Memory number display

Claims (7)

[Claims] 1. A mounting base attached to a surface of a game board,
In the center case of a ball game machine, which comprises an armor portion projecting forward from the surface of the mounting base in an eaves shape and having an upper surface downwardly inclined in the left and right direction, and distributing a flowing ball left and right by the upper surface of the armor portion. A center case for a ball-and-ball game machine, wherein the armor section is asymmetrical with the top of the inclined upper surface being disposed at a position deviated to one of right and left. 2. The ball game machine according to claim 1, wherein a guide member for guiding a ball is disposed below the inclined lower end of the armor located on the side opposite to the bias of the top. Center case. 3. A concave chamber having a front opening communicating with an opening formed in the mounting base is formed on the back side of the mounting base, and a guide path for guiding a ball toward the concave chamber is formed on an upper surface of the guide member. 3. The center case of a ball-and-ball game machine according to claim 2, wherein the ball is guided into the recessed room by a guiding path. 4. The guide member pivotally supports a middle part in the left-right direction and is provided with a swing range restricting member so as to be swingable within a predetermined range. The ball game machine according to claim 2 or 3, wherein the ball is stopped in a state, and the ball is rolled on the taxiway, passes through the support shaft, and descends at the concave chamber side end. Center case. 5. The recessed chamber is inclined downward toward the center in the left-right direction, and at least the inclined lower end portion is inclined downward toward the opening side of the mounting base, and the bottom surface rises along the mounting base side of the bottom surface. Obstacle members that prevent the upper ball from flowing forward from the opening and obstacle members at positions corresponding to the inclined lower end portion of the bottom surface are opened on the bottom surface and the ball is released to the game board surface side. 5. A ball discharge port for allowing the ball, the ball guided by the guide member is rolled on the bottom surface of the recessed chamber and discharged from the ball discharge port to the surface of the game board. The center case of the ball game machine according to any one of the above. 6. A guide projection protruding from the obstacle member near the ball discharge port toward the back side of the concave chamber is disposed on the bottom surface, and a ball rolling left and right on the bottom surface hits the guide projection. The center case of a ball game machine according to any one of claims 2 to 5, wherein the center case is guided to the back side of the concave room. 7. The center case of a ball game machine according to claim 1, wherein a projection is formed upward on a top of the armor portion.