JPH07328191A - Pinball playing machine - Google Patents

Abstract

PURPOSE:To provide a pinball playing machine in which a high cost is not needed, an error in terms of production and assembly is decreased, difference between respective machines is not generated and playing balls shot from a shooter are stably guided to a playing disk for a long time. CONSTITUTION:A pinball playing machine is provided with a frame member 50 fixed onto the surface of a playing disk and discriminating a playing disk part 70, arc-shaped curved parts 110 and 120 formed on the inner peripheral surface of the frame member facing the playing disk part and a guide rail 80 fixed along the curved parts. The frame member comprises a pair of half frame members capable of being divided into two in the front and rear directions of the playing disk. In the curved parts of both the half frame members, are provided half grooves forming a guide groove into which the guide rail 80 is fitted in a condition where both the half frame members are combined together and holding pieces formed along at least one edge of both the half grooves and holding the guide rail 80 in the guide groove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball game machine provided with a guide rail for guiding a game ball launched from a hitting ball launching device into the game board on the board surface of the ball game machine. .

[0002]

2. Description of the Related Art Conventionally, as this type of ball game machine, as shown in FIGS. 11 and 12, a game board 1, an arc-shaped guide rail 2 located on the surface of the game board 1, and this guide. A plurality of mounting holes 3 formed in the rail 2 at substantially equal intervals,
Fixing pin 4 attached to each mounting hole 3 and this fixing pin
Corresponding to 4, it is composed of a plurality of fixing holes 5 provided in the game board 1, the fixing pin 4 of the guide rail 2
It is known that the guide rail 2 is fixed to the game board 1 by driving it into the fixing hole 5.

In the above ball game machine, the plurality of fixing holes 5 provided in the game board 1 are formed by a jig or tool such as a multi-axis drilling machine, and the fixing pin 4 of the guide rail 2 is driven into the game board. Requires a rail crimping tool.

[0004]

However, in the above-mentioned conventional ball game machine, in order to form the fixing hole in the game board 1, a multi-axis drilling machine is required, or the fixing pin 4 of the guide rail 2 is fixed. There was a problem in that expensive jigs and tools had to be used, such as the need for rail crimping jigs to drive into the game board.

Further, in this ball game machine, as shown in FIGS.
As shown in, the guide rails are fixed on the surface of the game board only through the fixing pins, so the spacing between the fixing holes and the mounting spacing of the fixing pins on the gaming board may vary due to manufacturing errors. In that case, an individual difference may occur, and the way the game ball flies may be significantly different for each ball game machine. For example, even in the case of an arc-shaped guide rail, the radius of the arc may be different depending on the interval between the fixing pins, and one guide rail may be slightly wavy. When the guide rail undulates in this way, the flight of the game balls launched from the launcher will fluctuate significantly, causing uneven distribution of prizes, and the game balls colliding with the front glass that covers the front of the game board. There was a problem that it produced an unpleasant sound.

It is considered that the occurrence of such a manufacturing error can be avoided by improving the accuracy of each so as not to cause an error in the manufacturing stage or the assembly stage.
This will lead to a significant cost increase. Even if the manufacturing and assembling accuracy is improved and the guide rails are correctly fixed to the game board, when they are actually installed in the hall, the guide rails will emit about 70,000 shots a day from the launcher. From guiding the launched game balls to the inside of the game board,
The guide rail may be deformed by receiving stress due to the impact of the game ball that is launched, and the radius thereof may be different depending on the interval between the fixing pins. In such a case, it is sufficient to adjust the position of the guide rail for each ball game machine installed in a large number in the hall where the ball game machine is installed, but it takes a lot of time for maintenance, There was a problem that the cost required for maintenance was high.

Therefore, the ball-ball game machine according to claims 1 and 2 has been made in view of the problems of the above-mentioned conventional technique, and the purpose thereof is that it is easy to assemble and is assembled. It is intended to provide a ball game machine that costs less, has less error in manufacturing and assembly, and that the game ball launched from the launcher is stably guided to the game board over a long period of time. is there.

In addition to this, the ball-and-ball game machine according to the second aspect is intended to provide a ball-and-ball game machine in which the positioning of the guide rail in the guide groove is easy.

[0009]

The present invention is to achieve the above-mentioned object, and the contents thereof will be described below with reference to the embodiments shown in the drawings. The ball game machine according to claim 1 is a game board (40), a frame body (50) fixed to the surface of the game board (40) and distinguishing the game board surface portion (70), and a game board surface portion.
An arc-shaped curved portion (110, 120) formed on the inner peripheral surface of the frame body (50, 60) facing the (70), and a guide rail (80) fixed along the curved portion (110, 120). , The frame body (50) is a pair of single frame portions (9) that can be separated into two in the front and back direction of the game board (40).
The curved part (110,1) of both frame parts (90,100)
In (20), in the state where both single-sided frame portions (90, 100) are combined, one side groove (111, 121) forming a guide groove (130) into which the guide rail (80) fits, and at least one of both side side grooves (111, 121). And a holding piece (113) for holding the guide rail (80) in the guide groove (130).

According to another aspect of the ball game machine of the present invention, the engaging portion (81) is formed in the middle of the length of the guide rail (80) and the guide groove (130) of the frame (50) is provided. The engaging portion (81)
A positioning portion (112) for attaching and positioning the guide rail (80) is formed by being attached to.

[0011]

[Operation] Therefore, according to the ball game machine according to claim 1, first, with the guide rail (80) fitted in the one side groove (111, 121) of the bending portion (110), the game board (40). The one-sided frame portion (90) of the frame body (50) is positioned on the surface of, and the other one-sided frame portion (100) is combined. In this state, the guide rail (80) is held by the holding piece (113) formed in the guide groove (130) formed by the both-side grooves (111, 121).

Further, when a game ball is actually shot in the game board surface portion (70), even if the game balls are stressed for a long period of time by a large number of the shot game balls, the guide rail (80) still has a frame (50). )
It is fixed along the curved part (110) of the one side groove (111, 12
Since it is held in the guide groove (130) by the holding piece (113) formed on either one of (1), the guide rail (8
The mounting radius of 0) does not change. Therefore, the game ball is guided in the game board surface portion (70) in a stable state for a long time. Therefore, it is not necessary to perform maintenance work such as correcting the mounting radius of the guide rail (80) after installing the ball game machine in the hole.

According to the ball game machine of claim 2, the engaging portion (81) formed in the guide rail (80) and the guide groove (13).
By fitting the guide rail (80) into the guide groove (130) so as to correspond to the positioning portion (112) formed in (0), the guide rail (80) in the guide groove (130) The mounting position can be easily determined.

[0014]

1 to 10 show one embodiment of the present invention, FIG. 1 is a schematic front view of a ball game machine, FIG. 2 is an exploded perspective view of a game board and a frame, and FIG. An exploded sectional view of the first frame,
4 is a schematic cross-sectional view of the first frame body fixed to the game board, FIG.
Is a plan view of the guide groove, FIG. 6 is a plan view of the guide rail, FIG. 7 is an exploded sectional view of the second frame body, FIG. 8 is a schematic sectional view of the second frame body fixed to the game board, and FIG. FIG. 10 is a partial cross-sectional view of the frame and the game board, and FIG. 10 is an explanatory view showing the relationship between the guide rail and the launching device.

In FIG. 1, 10 indicates, for example, a pachinko machine as a ball game machine. The pachinko machine 10 is roughly divided into a game section 20 located at the upper part and an operation section 30 located at the lower part. To be done. As shown in FIG. 1, the game section 20 has a game board 40 in the center of the front surface thereof, and on the surface of the game board 40, a substantially semi-arcuate plastic first frame body 50 and It also has a second frame body 60 made of plastic which is located on the right side of the one frame body 50, and a position surrounded by the first and second frame bodies 50, 60 so as to distinguish the game board 40. A game board surface portion 70 is formed on.

A guide rail 80 is located between the first frame 50 and the game board surface portion 70. First, the first frame 50 will be described. As shown in FIG. 2, the first frame 50 is composed of a pair of one-side frame portions that are separable in the front and back directions. Specifically, as shown in FIG. 3, the first frame body 50 has a back single-sided frame portion 90 that is in surface contact with the game board 40 and has a substantially U-shaped cross section, and a backside single-sided frame portion 90. 90 and a front frame part 100 having a substantially U-shaped cross section, which is formed by opposing and combining the respective opening parts.

The one-side frame portion 90 on the back side is made of plastic, and as shown in FIGS. 1 and 2, a planar back surface portion 91 provided at a position in contact with the game board 40, The rear portion 91 is provided with a standing portion 92 which is formed to rise at a right angle from the outer peripheral edge, and two cylindrical protruding portions 93, 93 which protrude from the middle of the rear portion 91 toward the game board 40. There is. As shown in FIGS. 3 and 4, an inner convex portion 94 is provided at the upper end of the standing portion 92 inside the position where it is combined with the front half frame portion 100.

As shown in FIG. 2, the upright portion 92 has a curved portion 110 which is curved in an arc shape while coming into contact with the game board surface portion 70 and reaching from the lowermost portion to the uppermost portion of the game board surface portion 70. Have As shown in FIGS. 3 and 4, the inner peripheral surface of the curved portion 110 is formed with a one-sided groove 111 into which one side in the length direction of the guide rail 80 is fitted. Note that this one-sided groove 111
As will be described later, the one side groove provided on the one side frame portion 100 constitutes a guide groove. Further, as shown in FIG. 5, a positioning portion 112 protruding in an inverted U-shape is formed in the direction of the fitted guide rail 80 in the middle of the length of the one-sided groove 111.

Further, as shown in FIGS. 3 and 4, a holding piece 113 is provided at the edge of the one-sided groove 111 so as to project in the direction of the one-sided frame portion 100 of the table. The guide rail 80 is held in the one-sided groove 111 by sandwiching the guide rail 80 in the holding piece 113. The guide rail 80 is made of a bendable metal such as stainless steel, and is cut into a U-shape in the middle of its length from one side to be fitted in the one-sided groove 111, as shown in FIG. A missing engaging portion 81 is provided. The shape of this engaging portion 81 is such that the one side groove 11
When the guide rail 80 is fitted into the one-side groove 111 by engaging with the positioning portion 112 formed on the one side, the engaging portion 81 is formed into the one-side groove.
The position of the guide rail 80 with respect to the one-sided groove 111 can be easily determined by making it correspond to the positioning portion 112 of the 111.

An elastic member 114 for absorbing shock is inserted between the guide rail 80 and the curved portion 110, as shown in FIGS. The elastic member 114 protects the guide rail 80 and the first frame body 50 from the impact generated when the launched game ball collides with the guide rail 80, and also has a role of softening the impact sound generated during the collision. Have

The one-sided frame portion 100 on the front side is the one-sided frame portion 90 on the back side.
Similarly to the above, the one-sided frame portion 100 in the above table is formed of plastic, and as shown in FIGS. 2 to 4, a planar surface portion 101 provided at a position facing the player side. From the outer peripheral edge of the surface portion 101, the standing portion 92 of the one-side frame portion 90 on the back side is formed.
And an upright portion 102, which is provided so as to face with.

Further, as shown in FIGS. 3 and 4, at the upper end of the upright portion 102 of the front single-sided frame portion 100, a position where it is combined with the inner convex portion 94 provided on the back side single-sided frame portion 90. An outer convex portion 103 is provided on the outer side of. Then, this outer convex portion 103
However, as shown in FIG. 4, by inserting the inner convex portion 94 so as to sandwich it, the one-side frame portion 90 on the back side and the one-side frame portion on the front side
100 can be combined.

The standing portion 102 of the one-sided frame portion 100 in the above table is
As shown in FIG. 2, a position corresponding to the curved portion 110 of the back single-sided frame portion 90 is reached from the lowermost portion to the uppermost portion of the game board surface portion 70, similarly to the curved portion 110 of the backside single-framed portion 90. However, it has a curved portion 120 that is curved in an arc shape. As shown in FIGS. 3 and 4, a one-sided groove 121 into which one side in the length direction of the guide rail 80 is fitted is formed on the inner peripheral surface of the curved portion 120. The one-sided groove 121 constitutes the guide groove 130 in combination with the one-sided groove of the one-side frame portion on the back side.

Further, as shown in FIGS. 3 and 4, a holding piece 122 is provided at the edge of the one-sided groove 121 so as to project toward the one-side frame portion 90 on the back side. The guide rail 80 is held in the one-side groove 121 by sandwiching the guide rail 80 in the holding piece 122. For this reason, the holding piece on the backside frame 90
113 and the holding piece 122 of the one-sided frame 100 in the front side, in the guide groove 130 formed by the one-sided groove 111 of the one-sided frame 90 in the back side and the one-sided groove 121 of the one-sided frame 100 in the front side. On the guide rail
80 is retained.

Next, the second frame 60 will be described.
Similar to the first frame body 50, the second frame body 60 is composed of a pair of single frame portions 140 and 150 that are separable in the front and back directions, as shown in FIGS. Specifically, the second frame body 60 contacts the game board and has a back side one frame portion 140 having a substantially U-shaped cross section, and this back side one frame portion 140, and the opening portions thereof face each other. One-sided frame part with a U-shaped cross section
It consists of 150 and.

The one-sided frame portion 140 on the back side is made of plastic, and as shown in FIGS. 7 and 8, a planar back surface portion 141 provided at a position in contact with the game board 40,
The rear surface 141 is provided with a standing portion 142 which is formed so as to rise at a right angle from the outer peripheral edge thereof, and two cylindrical protruding portions 143 and 143 which protrude from the middle of the rear surface 141 toward the game board 40. .

As shown in FIGS. 7 and 8, an inner convex portion 144 is provided at the upper end of the upright portion 142 inside the position where it is combined with the front side frame portion. Further, as shown in FIG. 2, the standing portion 142 has an arc shape while reaching the position contacting the game board surface portion 70 while reaching from the lowermost portion to the uppermost portion of the game board surface portion 70 while contacting the game board surface portion 70. Bending part that bends
Has 145.

The one-side frame portion 150 on the front side is the one-side frame portion 140 on the back side.
Similarly to the above, as shown in FIGS. 7 and 8, a planar surface portion 151 provided at a position facing the player side and an outer peripheral edge of the surface portion 151 It is provided with an upright part 152 provided so as to face the upright part 142 of the one-side frame part 140 on the back side. In addition, the standing portion 152
As shown in FIGS. 7 and 8, the upper end of the one side frame 140
The outer convex portion 153 is provided outside the position where it is combined with the inner convex portion 144 provided on the. The outer convex portion 153 is fitted into the inner convex portion 144 so as to sandwich the inner convex portion 144, so that the one-side frame portion 140 on the back side and the one-side frame portion 150 on the front side.
Can be combined.

In the game board surface portion 70, a plurality of nails (not shown) are driven and a plurality of windmills are provided. The game balls flowing down in the game board surface portion 70 are nails and windmills. When it hits, a change is given to its flow direction. Game board surface
In 70, as shown in FIG. 1, in the center, a variable prize winning device 160 that performs variable display of a plurality of symbols is provided, and immediately below the variable prize winning device 160, the start of the variable prize winning device 160 is started. A tulip-shaped starting opening 161 is provided, and directly below the starting opening 161, an opening is made when a specific condition is satisfied, such as a case where a combination of symbol displays constitutes a specific prize mode on the variable winning device 160. An attacker 162 is provided.

Further, in the center of the lowermost part of the game board surface portion 70,
As shown in FIGS. 1 and 2, a collecting port 163 is provided for collecting game balls that have not been won, out of the game balls that have been launched into the game board surface portion 70. The game board 40 is formed of, for example, plywood, and as shown in FIGS. 2 and 9, has a recess 41 for fixing the first frame body 50 and the second frame body 60 at the upper and lower positions thereof, By fitting the protrusions 93, 143 of the first frame body 50 and the second frame body 50 into the recess 41, the game board
The positions of both frame bodies 50 and 60 with respect to 40 can be easily determined.

As shown in FIG. 1, the operation section 30 has an upper storage tray 31 for temporarily storing game balls to be launched.
And the lower storage tray 32 located below the upper storage tray 31.
And a handle-shaped launching device 33 located on the right side of the lower storage tray 72 for launching a game ball into the game section. The upper storage dish 31 has a function of temporarily storing the game balls obtained by winning in order to launch the game balls from the launching device 33, and is generally called a hundred-shot dish.

The lower storage tray 32 is for storing game balls that cannot be stored in the upper storage tray 31 when the upper storage tray 31 is filled with game balls obtained by winning. In addition, when the return lever (not shown) of the upper storage tray 31 is operated, it becomes a structure that communicates with the upper storage tray 31 and can collect the game balls stored in the upper storage tray 31. ing.

The launching device 33, as shown in FIG.
A handle-shaped switch part 34 for adjusting the start and the strength of the launch of the game ball, a hammer 35 located inside the operation part 30 for launching the game ball, and provided on this hammer 35, the hammer 35 is provided for playing the game. It is provided with a spring 36 that pulls in the ball launching direction, and a rotation drive device 37 that pulls the hammer 35 in the direction opposite to the game ball launching direction.

Further, as shown in FIG. 10, a launch rail 37 for launching a game ball is provided in the launch direction of the game ball of the launching device 33. A guide rail 80 is provided. Also, between the launch rail 38 and the guide rail 80, the game board surface portion
A foul hole 39 is provided for collecting game balls that have not reached 70. Therefore, the game ball launched from the launching device 33, the guide rail via the launch rail 38.
Hit the 80 and reach, along the guide rail 80 game board
40 is raised to reach the game board surface portion 70, and flows down the game board surface portion 70 as described above.

In addition, when the shooting speed of the launched game ball is low and the game ball cannot return to the guide rail 80 without being fully raised, the foul hole 39 between the launch rail 38 and the guide rail 80 is provided. Be recovered. Game board with the above configuration
An assembly procedure of 30, the first frame 50 and the guide rail 80 will be described.

First, on the game board surface portion 70 at the center of the game board 40,
A nail (not shown), a variable winning device 160, a starting port 161, and the like are arranged, and a recovery port 163 is formed. Next, the procedure for assembling the first frame 50 will be described. First, the one-sided frame 90 on the back
With the guide rail 80 fitted between the one-sided groove 111 of FIG. As shown in, the first frame body 50 is configured by combining the one-side frame portion 90 on the back and the one-side frame portion 100 on the front side.

With the first frame body 50 in which the one-side frame portion 90 on the back side and the one-side frame portion 100 on the front side are combined, the first frame body 50 is formed.
50 is fixed to the game board 40. To fix the first frame body to the game board 40, first, the protrusion 93 provided on the one-side frame portion 90 on the back side.
The game board 40 by inserting it into the recess 41 provided in the game board 40.
Determine the position relative to.

Next, in a state where the position of the first frame 50 with respect to the game board 40 is fixed, a screw N is inserted into a screw hole H provided in the first frame 50 and fixed to the game board 40. . Next,
The second frame body 60 is fixed to the game board 40. First, the second frame
Combine the one-sided frame 140 on the back of 60 and the one-sided frame 150 on the front,
The second frame body 60 is configured by the same procedure as the procedure for configuring the first frame body 50.

Further, the second frame 60 is replaced with the first frame described above.
After positioning with respect to the game board 40 in the same manner as 50, the second frame body 60 is fixed to the game board 40. According to the pachinko machine 10 having the above-described configuration, the guide rail 80 is fitted to the curved portion 110 of the first frame body 50 via the elastic member 114. It is fixed to the game board 40 by drawing a circular arc. Therefore, the guide rail 80 fixed to the game board 40 does not wavy or the arc is distorted due to an error in manufacturing or assembling, so that stable ball flight can be realized.

Further, since the elastic member 114 is inserted between the guide rail 80 and the guide groove 130 of the first frame body 50, the first frame body 50 is damaged by the collision of the game balls for a long time. Can be prevented, and the game ball is a guide rail
It is also possible to prevent the generation of high impact noise that occurs when hitting 80. Next, with the above assembled,
A procedure for launching a game ball from the launching device 33 will be briefly described.

First, as shown in FIG. 10, the game ball is positioned at the lowermost end of the launch rail 38. In this state, when the player operates the handle-shaped switch portion 34, the rotation drive device
36 squeezes the hammer 35 to a certain angle in the direction opposite to the shooting direction of the game ball. When the hammer 35 is pulled out from the rotary drive device 36 after being drawn to a certain angle, the hammer 35
Is urged by the spring 36 in the shooting direction of the game ball, the hammer 35 returns in the shooting direction of the game ball. Hammer 35
When is returned in the direction of the game ball firing, the game ball is launched by the tip of the hammer 35.

The game ball hit out jumps out along the launch rail 38, then jumps over the foul hole 39 and reaches the guide rail 80. The game ball reaching the guide rail 80 further rises and is guided to the upper part of the game board 40, and flows down on the game board surface portion 70. The game ball that has flowed down the game board surface portion 70 has a starting opening 10
It is won in 1 or the like, or flows downward through the inner peripheral surface of the second frame body 60 and is collected from the collection port 103.

As described above, during the game, the game ball shot from the launching device 80 hits the guide rail 80, but the guide rail 80 is the guide groove of the first frame 50.
Since it is fitted inside 130, the guide rail 80 will not be distorted or waved by the stress of the game ball. Further, since the elastic member 80 is inserted between the guide groove 130 and the guide rail 80, the game ball is guided by the guide rail 80.
The impact sound when the vehicle collides with is also softened.

[0044]

Since the present invention is constituted as described above, it has the following effects. Claim 1
According to the ball game machine described, the guide rail is fitted into the guide groove of the frame body, and the frame body is fixed to the game board. Therefore, an error in manufacturing or assembly occurs with respect to the arc of the guide rail. hard. Therefore, it is easy to assemble, does not require high cost, does not cause individual differences, and provides a ball game machine in which the game ball launched from the launch device is accurately and stably guided to the game board. can do.

Further, when actually installed in the hall and used, even if the guide rails are positioned along the curved portion of the frame even if stressed by a large number of game balls fired, the guide rails The mounting radius does not change,
The game ball is guided in the game board in a stable state for a long time. Therefore, it is possible to provide the ball game machine which does not require the maintenance for the correction of the mounting radius after the installation in the hole.

In addition to this, according to the ball game machine of the second aspect, an engaging portion is formed in the middle of the length of the guide rail, and the engaging portion is provided in the guide groove of the frame. Since the positioning portion for attaching and positioning the guide rail is formed in contact with the portion, the positioning of the guide rail in the guide groove in the longitudinal direction can be easily performed.

[Brief description of drawings]

FIG. 1 is a schematic front view of a ball game machine.

FIG. 2 is an exploded perspective view of a game board and a frame body.

FIG. 3 is an exploded sectional view of a first frame body.

FIG. 4 is a schematic sectional view of a first frame body fixed to a game board.

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

FIG. 6 is a plan view of a guide rail.

FIG. 7 is an exploded sectional view of a second frame body.

FIG. 8 is a schematic cross-sectional view of a second frame body fixed to a game board.

FIG. 9 is a partial cross-sectional view of a frame and a game board.

FIG. 10 is an explanatory diagram showing a relationship between a guide rail and a launching device.

FIG. 11 is a perspective view of a conventional example showing a means for fixing a guide rail to the surface of a game board.

12 is a partially enlarged view of the guide rail shown in FIG.

[Explanation of symbols]

 1 Game board 2 Guide rail 3 Mounting hole 4 Fixing pin 5 Fixing hole 10 Pachinko machine 20 Gaming section 30 Operating section 31 Upper storage tray 32 Lower storage tray 33 Launcher 34 Switch device 35 Hammer 36 Rotation drive 37 Spring 38 Launch rail 39 Foul hole 40 Game board 41 Recessed portion 50 First frame body 60 Second frame body 70 Game board surface portion 80 Guide rail 81 Engagement portion 90 Back side frame portion 91 Back surface portion 92 Standing portion 93 Projection portion 94 Inner convex shape Part 100 Front piece Frame 101 Surface part 102 Standing part 103 Outer convex part 110 Curved part 111 One side groove 112 Positioning part 113 Holding piece 114 Elastic member 120 Curving part 121 One side groove 122 Holding piece 130 Guide groove 140 Back piece Frame part 141 Back surface part 142 Standing part 143 Protruding part 144 Inner convex part 145 Bending part 150 One frame part of the table 151 Surface part 152 Standing part 153 Outer convex part 160 Variable winning device 161 Starting port 162 Attacker 163 Collection port

Claims (2)

[Claims] 1. A game board, a frame body fixed to the surface of the game board to distinguish the game board surface portion, and an arc-shaped curved portion formed on the inner peripheral surface of the frame body facing the game board surface portion. A guide rail fixed along this curved portion is provided, and the frame body is formed of a pair of one-sided frame portions that can be separated into two in the front-back direction of the game board. In a state where both frame portions are combined, one side groove that forms a guide groove into which the guide rail fits and a holding piece that is formed along at least one edge of the one side groove and that holds the guide rail in the guide groove. Ball game machine characterized by having. 2. A positioning part for forming an engaging part in the middle of the length of the guide rail, and for fitting and positioning the guide rail in the guide groove of the frame body by engaging with the engaging part. The ball game machine according to claim 1, wherein the ball game machine is formed.