JP2008264247A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pinball game machine guiding the flow direction of a game ball flowing in a game ball guide route extension device and rolling it in a specific circulation direction despite of the speed and introduction direction of the game ball. <P>SOLUTION: A game ball flowing route extension device is provided with an introduction hole 18, a circular bottom 16 being circular in plan view and receiving a game ball introduced from the introduction hole 18 and making it roll, a falling hole 17 formed at the circular bottom 16, and a first guide part 19 and a second guide part 23 for guiding the game ball 2 flowing in the introduction hole 18 to the circular bottom 16 and guiding it to roll in the specific circulation direction in the plan view, wherein the first guide part 19 guides the game ball 2 introduced from the introduction hole 18 to the second guide part 23, and the second guide part 23 guides the game ball 2 to the circular bottom 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ball game machine, and more particularly to a ball game machine with an improved structure of a game ball guiding path extending device for extending a flow path of a game ball rolling in a game area.

  Conventionally, in the second type of pachinko machine that is a ball game machine, the game area of the game board can be switched between one or a plurality of start winning holes through which a game ball can win and an open state and a closed state. And a variable winning device having a pair of opening and closing blades, provided that the opening and closing blades are given a predetermined number of times (for example, once or Operation).

  By the way, in this second type of pachinko machine, since the game balls launched into the game area directly win the start winning opening, especially when the game balls having momentum in the ball speed win the starting winning opening, The player cannot recognize the winning timing. Therefore, in order to enable the player to recognize the winning timing of the game ball at the starting winning opening, an accessory having a croon that extends the flow time of the gaming ball to the starting winning opening is arranged above the starting winning opening. It is possible. This croon is a member having a dish-shaped recess in plan view, and having a drop opening in which a game ball falls on the bottom surface of the recess. When the game ball flows into the croon from the entrance of the accessory, the game ball turns on the upper surface along the outer periphery of the concave portion formed in the shape of a mortar for about 2 to 3 seconds. Fall.

In the bullet ball game machine of Patent Document 1, a flow time irregularity device provided with a flow time control unit as a croon is disposed above a rotary sorter. A normal winning opening is formed at the upper part of the irregular flow time device, and a hitting ball intrusion hole is formed on both the left and right sides.
In the gaming machine of Patent Document 2, a game ball assembly device provided with a game ball dropping unit as a croon is arranged above the variable winning device.
Japanese Patent Laid-Open No. 1-300973 JP 7-124304 A

  In the ball game machine of Patent Document 1, since the ball speed and the intrusion direction of the hit ball when reaching the flow time irregularity device are different for each hit ball, a plurality of hit balls interfere with each other in the flow time control unit, All of them cannot roll in a specific circumferential direction, and the flow control unit does not perform the function of extending the flow path of the hit ball by extending the flow path of the hit ball. In particular, when a striking ball with momentum in the ball speed enters from a position directly above the normal winning opening, the hitting ball may fall to the dropping hole without rolling by the flow time control unit. Therefore, the player cannot recognize the inflow timing of the game ball to the sorting device.

In Patent Document 2, the same problem as in Patent Document 1 occurs. When a game ball with momentum in the ball speed flows from directly above the game ball assembly device, the game ball falls to the variable winning device without rolling at the game ball dropping part, so that the player The timing of winning a game ball to the device cannot be recognized.
An object of the present invention is to provide a ball game machine that directs the inflow direction of a game ball that has flowed into the game ball guide path extending device regardless of the ball speed and the direction of introduction of the game ball and rolls it in a specific circulation direction. Is to provide.

  The bullet ball gaming machine according to claim 1 is a bullet ball gaming machine provided with a game ball flow path extending device for extending a flow path of a game ball, wherein the game ball flow path extending device is an introduction port for introducing a game ball. A circular bottom portion in a plan view that receives and rolls a game ball introduced from the introduction port, one or a plurality of drop ports formed in the circular bottom portion from which the game ball falls, and flows into the introduction port A first guide portion and a second guide portion that guide the game ball toward the circular bottom portion and guide the game ball so as to roll in a specific circumferential direction in a plan view, the first guide portion being introduced from the introduction port. The game ball is guided toward the second guide portion, and the second guide portion guides the game ball to the circular bottom portion.

  In this ball game machine, when the game ball flows through the game area and flows into the introduction port of the game ball flow path extending device, the game ball is guided toward the second guide unit by the first guide unit, Since the guide is directed toward the circular bottom by the two guide portions, the game ball can be rolled in the specific circulation direction at the circular bottom.

  According to a second aspect of the ball game machine of the present invention, in the invention of the first aspect, two drop openings are formed in the front and rear of the circular bottom portion, and the upper surface of the circular bottom portion is inclined gently downward from the outer peripheral side to the central side. It is characterized by being formed on a gently inclined surface.

  According to a third aspect of the present invention, the game ball flow path extending device includes a discharge port for discharging the game ball dropped from the drop port to the front side of the game board. The path extension device is arranged above a predetermined winning opening, the introduction port is arranged at a position protruding forward from the board surface of the game board, and the discharge port is located at a position protruding forward from the board surface of the game board. In addition, it is characterized in that it is formed at a position vertically above the winning opening.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the first guide portion is constituted by a projection piece having a triangular shape in plan view provided at the corner of the upstream portion of the introduction port, The second guide part is characterized in that it is composed of a projection piece having a triangular shape in front view provided in the downstream part of the introduction port.

  According to the first aspect of the present invention, the game ball flow path extending device is specified in plan view by guiding the introduction port, the circular bottom portion, the drop port, and the game ball flowing into the introduction port toward the circular bottom portion. A first guide part and a second guide part for guiding the rolling ball so as to roll in a circumferential direction, the first guide part guides the game ball introduced from the introduction port toward the second guide part, and the second guide part. Since the part guides the game ball to the circular bottom part, the game ball introduced from the introduction port will flow into the circular bottom part regardless of the speed and direction of the game ball when it reaches the game ball flow path extending device. The inflow direction can be directed, and the game ball can be reliably rolled in the specific circulation direction at the circular bottom. Therefore, when a plurality of game balls flow into the circular bottom, it is possible to prevent interference between the plurality of game balls. In addition, the game ball flow path extending device can reliably extend the flow time of the game ball.

  Further, by providing the first and second guide portions, the game ball is guided to roll in a specific circulation direction at the circular bottom portion regardless of the ball speed and the introduction direction of the game ball. It is possible to increase the degree of freedom of the position where the introduction port is disposed.

  According to the second aspect of the present invention, the two drop openings are arranged in the front and rear of the circular bottom portion, and the upper surface of the circular bottom portion is formed as a gently inclined surface that is gently inclined downward from the outer peripheral side to the central side. Therefore, when a plurality of game balls are guided to the circular bottom, it is possible to prevent the game balls from being clogged at the drop opening.

  According to the invention of claim 3, the game ball flow path extending device is disposed above a predetermined winning opening, the introduction port is disposed at a position protruding forward from the board surface of the game board, and the discharge port is a game. The player can recognize the winning timing of the game ball at the winning opening because it is formed at a position protruding from the front side of the board and vertically above the winning opening.

  According to the invention of claim 4, the first guide part is constituted by a projection piece having a triangular shape in plan view provided at the corner of the upstream part of the introduction port, and the second guide part is provided at the downstream part of the introduction port. Since the projection piece is triangular in front view, the game ball introduced into the introduction port can be guided to flow into the circular bottom from a specific direction.

  The bullet ball game machine of the present embodiment includes a game ball path extending device for extending the flow path of the game ball. The game ball path extending device has an inlet and a circular bottom portion that receives and rolls the game ball. And a first guide portion and a second guide portion that guide the game ball flowing into the introduction port toward the circular bottom portion and guide the game ball to roll in a specific circumferential direction in a plan view, The game ball is rolled in a specific circulation direction at the circular bottom.

  Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example in which a so-called second type pachinko machine arranged in an island structure of a pachinko hall is applied to the present invention. A plurality of pachinko machines are arranged in the length direction on the island structure provided in the pachinko hall.

  As shown in FIG. 1, the pachinko machine 1 includes a rectangular frame-shaped outer frame 3 and a front frame 4 pivotally attached to the outer frame 3 so that the outer frame 3 can be opened and closed. The outer frame 3 is an island structure (not shown). ) Is detachably mounted. A game board 5 is detachably attached to the front frame 4 from the back side, and a glass door 6 having a window portion 6a and an upper plate 8 for storing a game ball 2 for launching are associated with the front side of the game board 5. A front plate 7 is pivotally attached to each other so as to be freely opened and closed. A lower plate 9 for storing the game ball 2 overflowing or extracted from the upper plate 8 is fixedly provided at the lower part of the front plate 7, and a firing handle 10 is attached to the right side of the lower plate 9.

  As shown in FIG. 2, the game board 5 that forms a vertical board surface is provided with a guide rail 15 including an outer rail 15 a and an inner rail 15 b in a substantially annular shape, and a game area 5 a is formed inside the guide rail 15. Has been. The game ball 2 launched by operating the launch handle 10 is guided along the inner surface of the outer rail 15a and the outer surface of the inner rail 15b, and is thrown into the upper portion of the game area 5a.

  In the game area 5a, there are a number of obstacle nails 20, a plurality of windmills 21, a plurality of ordinary winning ports 22, a variable winning device 25, a starting winning port (corresponding to a predetermined winning port) 11, and a game ball flow path extending device 12. Etc. are provided. The game ball 2 launched into the game area 5a hits a plurality of game nails 20 and a plurality of windmills 21 and falls while changing direction, and any one of the plurality of normal winning ports 22, the variable winning device 25, and the starting winning port 11 The crab is won or it falls to the lowest end and is discharged from the ball outlet 26. When the game ball 2 enters any of the plurality of normal winning ports 22, the variable winning device 25, or the start winning port 11, a predetermined number of game balls 2 are paid out to the lower plate 9.

  The variable winning device 25 is disposed in the center portion of the game area 5a, and the winning device main body 30 whose front portion is substantially U-shaped, and a pair of opening / closing blades provided on the upper end portion or the side portion of the winning device main body 30. 31, a ball play space 32 formed inside the prize winning device main body 30, a normal area 33 and a specific area 34 provided in the ball play space 32 inside the variable prize winning device 25.

  As shown in FIG. 2, the pair of opening and closing blades 31 of the variable winning device 25 is in a closed state indicated by a solid line where the game ball 2 does not win the variable winning device 25, and the game ball 2 can easily win the variable winning device 25. It is configured to be variable over an open state indicated by a two-dot chain line, and normally, the opening / closing blade 31 is held in a closed state. Although not shown, the variable prize winning device 25 includes a solenoid actuator that drives the pair of opening / closing blades 31 so as to be switched between a closed state and an open state, or an electric actuator such as an electric motor. .

  When the game ball 2 wins the start winning opening 11, the opening / closing blade 31 of the variable winning device 25 is opened and closed once so as to switch from the closed state to the open state. When the opening / closing blade 31 of the variable winning device 25 opens and closes, the game ball 2 that has won the variable winning device 25 moves in the ball moving space 32 and passes through either the normal region 33 or the specific region 34 to play the game ball. Two payouts are obtained as a prize. Here, when the game ball 2 passes through the specific area 34, the special game state is advantageous to the player in the normal state, and the special game state can be continued during the special game.

  In the special gaming state, the opening / closing blades 31 of the variable winning device 25 are opened and closed substantially continuously, and the opening / closing operation is performed a predetermined number of times (for example, 18 times), or a predetermined number (for example, 10 Rounds that end when one of the game balls 2 wins the game can be executed at a maximum (for example, 15 rounds). When the game ball 2 passes through the specific area 34 of the variable winning device 25 during execution of each round except the final round, the round ends and the next round is entered.

  Next, the game ball flow path extending device 12 for extending the flow path of the game ball 2 will be described. The game ball flow path extending device 12 is disposed above the start winning opening 11 so that the player can recognize the winning timing of the game ball 2 to the starting winning opening 11. In other words, the game ball flow path device 12 extends the flow path of the game ball 2 by extending the flow path of the game ball 2 up to the start winning opening 11.

  As shown in FIGS. 2 to 5, the game ball flow path extending device 12 includes a game ball flow path extending main body member 13 (hereinafter, a main body member) and a game ball introducing member 14. The main body member 13 is provided with a circular bottom 16. The game ball introduction member 14 is formed with an introduction port 18 for introducing the game ball 2, and a first guide portion 19 and a second guide portion for guiding the game ball 2 toward the circular bottom portion 16 in the introduction port 18. 23. The game ball flow path extending device 12 is simply attached to the surface of the game board 5 so that the main body member 13 is pushed from the front into the mounting hole 5b formed above the start winning opening 11.

  As shown in FIGS. 3 to 5, the main body member 13 includes a horizontally long decorative plate 27 and a box body 28 located on the rear side of the decorative plate 27, and these are integrally formed. The decorative plate 27 has an opening (not shown) communicating with the circular bottom portion 16. The game ball 2 introduced into the game ball introduction member 14 flows into the circular bottom portion 16 through the opening.

  The box 28 has a size such that the front surface is open and can be inserted into the mounting hole 5b. A lamp support member 29 that supports the lamp 37 and an engagement member 35 that is located below the lamp support member 29 are provided on the rear surface of the box body 28. The lamp 37 is inserted so as to face the inside of the box body 28 from a window portion formed at the upper end of the rear surface of the box body 28. The rear end portion of the lamp support member 29 is screwed to a pair of left and right first support portions 36 protruding rearward from the rear surface of the box body 28.

  The engaging member 35 made of synthetic resin is screwed to a pair of left and right second support portions 38 protruding rearward from the rear surface of the box body 28. Here, as shown in FIG. 5, the game ball flow path extending device 12 pushes the main body member 28 into the mounting hole 5b above the start winning opening 11 from the front, and attaches the decorative board 27 to the front surface of the game board 5. The pair of left and right engagement claws 35a of the engagement member 35 are assembled in a parallel posture with respect to the game board 5 by abutting and engaging with the outer peripheral edge of the mounting hole 5b from the rear.

  The circular bottom portion 16 is called a so-called croon, and the flow time of the game ball 2 is adjusted by turning the game ball 2 flowing into the circular bottom portion 16 clockwise or counterclockwise for about 2 to 3 seconds. It is an extension. As shown in FIGS. 3 and 5, the circular bottom portion 16 is provided inside the box 28 and is formed in a circular shape in plan view so as to receive and roll the game ball 2 introduced from the game ball introduction member 14. ing. The upper surface of the circular bottom portion 16 is formed in a mortar shape having a gently inclined surface 16a that is gently inclined from the outer peripheral side toward the center side.

  Two drop openings 17 are formed in the circular bottom portion 16 so as to be arranged in the front-rear direction at the center portion. The two drop openings 17 are formed in a circular shape with a size that allows only one game ball 2 to pass therethrough. That is, since the circular bottom portion 16 has a gently inclined surface 16a and two drop openings 17 on the upper surface, when the game ball 2 introduced into the game ball introduction member 14 is received by the circular bottom portion 16, the circular bottom portion 16 loosens along the outer periphery. It turns on the inclined surface 16a. When the turning force on the gently inclined surface 16a of the game ball 2 is lost, the game ball 2 falls downward from the drop port 17.

  A guide port 40 for guiding the game ball 2 to the front side of the game board 5 is provided below the drop port 17. The guide port 40 communicates with a discharge port 47 formed in the decorative plate 27 and is formed in a downwardly inclined shape toward the front.

  As shown in FIGS. 3, 5, and 6, the game ball introduction member 14 is attached to the front surface of the decorative board 27 of the main body member 13, and is disposed at a position that protrudes to the near side from the board surface of the game board 5. Yes. The game ball introducing member 14 is provided with a pair of left and right engaging claws 41 that protrude rearward from the rear surface thereof and are for positioning and rotation prevention. The pair of left and right engaging claws 41 are engaged with a pair of left and right engaging grooves 45 formed in the box body 28.

  A decorative plate 42 is fixed to the front surface of the game ball introducing member 14, and the decorative plate 42 is made of a transparent synthetic resin so that the upper half of the decorative plate 42 can be visually recognized inside the box 28. A discharge port 43 through which the game ball 2 discharged from the guide port 40 is discharged toward the start winning port 11 is provided on the rear side of the lower half of the back surface of the decorative plate 42. The discharge port 43 is provided at a position protruding from the game board 5 and vertically above the start winning port 11.

  The introduction port 18 is formed in the central portion of the upper half of the game ball introduction member 14. At the upper end of the upstream portion of the introduction port 18, an opening 44 for introducing the game ball 2 flowing in the game area 5 a into the introduction port 18 is formed. The opening 44 is formed by a U-shaped opening in plan view and an upper end portion of the front surface of the decorative plate 27. The lower end of the downstream portion of the introduction port 18 communicates with the circular bottom portion 16 through the opening portion of the decorative plate 27.

Next, the 1st guide part 19 and the 2nd guide part 23 are demonstrated.
As shown in FIGS. 3 to 6, the first guide portion 19 and the second guide portion 23 are provided to direct the inflow direction when the game ball 2 flows into the circular bottom portion 16, and are introduced from the opening 44. It is a member that guides the game ball 2 flowing into the mouth 18 toward the circular bottom 16 and rolls in a specific circumferential direction in plan view.

  As shown in FIGS. 3 to 5, the first guide portion 19 is provided at the corner of the upstream portion of the introduction port 18. The first guide portion 19 is integrally formed with the decorative plate 27 and is configured by a projection piece having a triangular shape in plan view that protrudes forward from the upper portion of the front surface of the decorative plate 27. The first guide portion 19 has a length that fits in the inner region of the pair of left and right side walls of the opening 44 of the introduction port 18 and is formed so that the width in the front-rear direction decreases from the left side wall to the right side wall. Has been. The upper surface of the first guide portion 19 is formed as a flat surface. The upper half of the front surface is formed on a gently inclined surface 19a that is gently inclined downward toward the front right side toward the second guide portion 23, and the lower half is formed on a vertical surface.

  As shown in FIGS. 4 to 6, the second guide portion 23 is provided from the approximate center of the downstream portion of the introduction port 18 to the right side. The second guide portion 23 is formed by a triangular projection piece formed integrally with the circular bottom portion 16. The right side surface of the second guide portion 23 is formed as a vertical surface erected in the vertical direction from the front portion of the outer peripheral surface of the circular bottom portion 16, and the left side surface is gently lowered toward the left front side toward the inlet of the circular bottom portion 16. It is formed on an inclined gentle inclined surface 24a.

Next, the operation of the game ball flow path extending device 12 will be described.
As shown in FIG. 7, when the game ball 2 having a momentum in the ball speed is introduced into the introduction port 18 from directly above the game ball introduction member 14, the game ball 2 comes into contact with the upper surface of the first guide portion 19. The ball speed of the sphere 2 is decelerated to some extent, falls from the front inclined surface 19a toward the front right side, and is guided toward the second guide portion 23. Next, when the game ball 2 is guided to the second guide portion 23, it contacts the left inclined surface 23 a of the second guide portion 23, rolls on the inclined surface 23 a, and is guided to the left front, and the circular bottom portion Guided to 16 inlets. The game ball 2 that has flowed into the circular bottom portion 16 from the left side turns about 2 to 3 seconds in the clockwise direction in the plan view (specific rotation direction) on the gentle slope 16a along the outer periphery. That is, as the game ball 2 turns in the circular bottom portion 16, the flow time of the game ball 2 is extended. When the turning force is lost, the game ball 2 falls from the drop port 17 to the guide port 40.

The effect of the pachinko machine 1 of the embodiment described above will be described.
A game ball 2 that has momentum in ball speed is launched into the game area 5 a, and the game ball 2 is introduced from directly above the introduction port 18 while changing the direction by the obstacle nail 20 and the windmill 21. The game ball 2 that has flowed into the introduction port 18 is guided toward the second guide portion 23 by the first guide portion 19, and is guided toward the circular bottom portion 16 by the second guide portion 23, and in a specific circulation direction in plan view. Since it is guided to roll, even when the game ball 2 having momentum in the ball speed is introduced from directly above the introduction port 18 when the game ball flow path extending device 12 is reached, the game ball 2 has a circular bottom portion. The inflow direction when flowing into 16 can be directed, and the game ball 2 can be reliably rolled in the specific circulation direction at the circular bottom portion 16. Therefore, when the plurality of game balls 2 flows into the circular bottom portion 16, it is possible to prevent the plurality of game balls 2 from interfering with each other. Further, the game ball flow path extending device 12 can reliably extend the flow time of the game ball 2.

  Two drop openings 17 are formed in the front and rear of the circular bottom portion 16, and the upper surface of the circular bottom portion 16 is formed on a gently inclined surface 16a that is gently inclined downward from the outer peripheral side to the center side. When the game ball 2 is guided to the circular bottom portion 16, it is possible to prevent the game ball 2 from being blocked at the drop port 17.

  The game ball flow path extending device 12 is disposed above the start winning port 11, the introduction port 18 is disposed at a position protruding forward from the surface of the game board 5, and the discharge port 43 is disposed from the surface of the game board 5. Since it is formed at a position protruding to the near side and vertically above the start winning opening 11, the player can recognize the winning timing of the game ball 2 to the starting winning opening 11.

Next, a modified example in which the above embodiment is partially modified will be described.
1) In the embodiment, the first guide portion 19 is configured as a triangular projection piece in plan view, and the second guide portion 23 is formed as a triangular projection piece in front view. May be. For example, you may comprise a 1st guide part in the planar view fan-shaped projection piece. Moreover, you may comprise a 2nd guide part in the protrusion piece of side view circular arc shape.

2] In the embodiment, the game ball 2 is guided to roll in the clockwise direction in the plan view by the circular bottom portion 16 by the first guide portion 19 and the second guide portion 23 in the introduction port 18. The arrangement positions of the first guide portion 19 and the second guide portion 23 may be changed so that the game ball 2 rolls counterclockwise in the plan view at the circular bottom portion 16.

3] In the embodiment, the game ball flow path extending device 12 is disposed above the start winning opening 11, but may be disposed above any winning opening other than the starting winning opening 11. For example, it may be arranged above the variable winning device 25.

4] In the embodiment, the game ball flow path extending device 12 extends the flow time of the game ball 2. However, even if the game ball flow path extending device 12 also serves as a winning opening. Good. For example, the introduction port 18 or the drop port 17 may be a winning port.

5] In addition, those skilled in the art can implement the present invention by adding various modifications to the above-described embodiments, and the present invention includes such various modifications.

It is a perspective view of a pachinko machine. It is a front view of the game board of a pachinko machine. It is a perspective view of a game ball flow path extending device. It is a front view of a game ball flow path extending device. It is an IV-IV line section top view of a game ball flow course extension device. It is a longitudinal cross-sectional view of the game ball flow path extending device. It is a perspective view of a 1st, 2nd guide part and a circular bottom part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pachinko machine 5 Game board 11 Start winning opening 12 Game ball flow path extension apparatus 16 Circular bottom part 16a Slightly inclined surface 17 Falling port 19 1st guide part 23 2nd guide part 43 Outlet port

Claims (4)

In a ball game machine equipped with a game ball flow path extending device for extending the flow path of game balls,
The game ball flow path extending device includes an introduction port for introducing a game ball, a circular bottom portion in a plan view that receives and rolls a game ball introduced from the introduction port, and a game ball formed on the circular bottom portion. First and second guides for guiding one or more falling outlets and a game ball flowing into the introduction port toward a circular bottom and rolling in a specific circumferential direction in plan view With
The first guide part guides the game ball introduced from the introduction port toward the second guide part, and the second guide part guides the game ball to the circular bottom part,
The bullet ball game machine according to claim 1, wherein:   The two drop openings are formed side by side at a portion near the center of the circular bottom portion, and the upper surface of the circular bottom portion is formed as a gently inclined surface that is gently inclined downward from the outer peripheral side to the center side. Item 2. A ball game machine according to item 1. The game ball flow path extending device includes a discharge port for discharging the game ball dropped from the drop port to the front side of the game board,
The game ball flow path extending device is disposed above a predetermined winning opening, the introduction port is disposed at a position protruding toward the front side of the board surface of the game board, and the discharge port is disposed above the board surface of the game board. 3. The bullet ball game machine according to claim 1, wherein the ball game machine is formed at a position protruding forward and at a position vertically above the winning opening.   The first guide part is composed of a projection piece having a triangular shape in plan view provided at a corner of the upstream part of the introduction port, and the second guide part is a triangular shape in front view provided at a downstream part of the introduction port. The bullet ball game machine according to any one of claims 1 to 3, wherein the ball game machine is constituted by a protruding piece of the above.

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