JPH05293214A - Game board of pachinko game machine - Google Patents

Abstract

PURPOSE:To prevent wiring cords or the like interconnecting a control circuit and prize winning means from projecting outside to rearward of a game board by previously mounting a game device on the game board body side and an electrically functioning means on the receiving means side respectively. CONSTITUTION:While a wiring receiving box body 70 is provided with a control circuit connector 54 of a second removable connecting means for connecting a control circuit of an electric control means through a wiring connector, a wiring assembly 52 of an electric control means disposed toward respective prize winning means from the connector 54 to supply power sources for operative drive and emission to a chucker or the like or give and receive electric signals for control, and generator connectors 53A-53D of first removable connecting means for interconnecting the wiring assembly 52, prize winning means, etc., the box body 70 includes base boards 56, 57 and 58 on which lamp unit are mounted. The respective connectors or the like are surely built in the wiring receiving box and not to project rearward outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game board of a pachinko game machine, and more particularly, to a game board of a pachinko game machine having an improved structure such as wiring for connecting a control circuit and a prize.

[0002]

2. Description of the Related Art Conventionally, a pachinko machine is constructed by hingedly attaching a front frame to one side of a machine frame by a hinge or the like, and providing a game board storage frame on the back surface of the front frame. A game board is stored above the game board storage frame. For the game board, cut veneer plywood to a predetermined size and attach various cell plates with decorative patterns to the surface of the game board plate material that has various openings at predetermined positions. In the game area, which is fixed in a substantially circular shape, a large number of obstacle nails and various winning tools are provided.

[0003]

However, in the above-mentioned conventional game board, the wiring cords for connecting each winning device and the electric circuit for controlling the prize are projected to the outside rear from the rear surface of the game board. Occasionally, an accident occurred, such as when the pachinko machine was transported or when the front frame was opened and closed, the wiring cord was caught by something and the wire was broken. In addition, if these wirings and the like project to the rear of the game board, noise may jump into the wirings from other electrical equipment, causing the control circuit to malfunction, and in the worst case, destroying the control circuit. There was a problem that a situation like that would occur. The present invention has been made in order to solve these problems, and a pachinko game machine in which a wiring cord or the like for connecting a control circuit and a prize device does not project to the outside rear from the back surface of the game board. The purpose is to provide a game board.

[0004]

In order to solve the above-mentioned problems, the present invention provides a game board main body in which a plurality of obstacle nails for changing the flow direction of a hit ball are implanted, and the game board. Includes winning means attached to the main body for receiving the hit ball, game display means attached to the game board main body for displaying a game status regarding the hit ball, or decoration means attached to the game board main body for increasing the interest of the game. A game device, an electric function means attached to a predetermined position of the game device to perform an electric function, an electric control means for controlling the game device or the electric function means, and the game device or the electric function means. It is configured to include an electrical connection unit that connects the electrical control unit, and a storage unit that internally houses the electrical connection unit.

[0005]

According to the invention described in claim 1, which has the above-mentioned structure, a wiring assembly for connecting the game device such as a prize or the like or the electric functional means such as the lamp unit and the sensor to the electric control means such as the control circuit. , The electrical connection means such as the connector is built in the storage means such as the wiring storage box, and does not project rearward from the rear surface of the game board body, which is a problem with conventional game boards. In the worst case, the control circuit malfunctions due to accidents such as the wiring cord getting caught by something when transporting or opening and closing the front frame and breaking the wire, and noise jumps into the wiring from other electrical equipment. It is possible to prevent the situation of being destroyed. Also, the storage means such as the wiring storage box,
Since the wiring assembly and the electrical connection means such as the connector are built in, the wiring cord between the electrical control means such as the control circuit and the game machine such as the prize device or the lamp unit, the electric function means such as the sensor, etc. The error in the length can be absorbed by routing the wiring inside the storage means such as the wiring storage box. Further, according to the invention described in claim 2, the electrical connection means such as the wiring assembly and the connector is detachably connectable to the gaming device such as the accessory or the electrical function means such as the lamp unit and the sensor. Since the first attachment / detachment connection means such as accessory connector is provided, the connection between the electronic device such as the game machine or the lamp unit and the sensor such as the accessory and the electrical connection means such as the wiring assembly and the connector. Can be done easily. According to the invention described in claim 3, the electrical connection means such as the wiring assembly and the connector is the second attachment / detachment connection means such as a control circuit connection connector detachably connectable to the electrical control means such as the control circuit. Therefore, the electrical control means such as the control circuit and the electrical connecting means such as the wiring assembly and the connector can be easily connected. Also,
According to the invention described in claim 4, since the first attachment / detachment connection means such as the accessory connection connector is locked to the storage means, the gaming machine such as a prize device or the electric function of the lamp unit, the sensor or the like. By simply inserting the means from the front side of the game board, it is possible to simultaneously and easily attach and electrically connect the game device such as an accessory or the electric functional means such as the lamp unit and the sensor to the game board body. According to the invention described in claim 5, since the second attaching / detaching connecting means such as the control circuit connecting connector is locked to the housing means, the electric control means such as the control circuit is inserted from the back side of the game board. Just by doing, it is possible to simultaneously and easily attach and electrically connect the electric control means such as the control circuit to the game board main body.
Further, the second detachable connecting means such as the control circuit connecting connector is
Since the wiring from the game machine such as the accessory or the electric function means such as the lamp unit and the sensor is collected and connected to the electric control means such as the control circuit through the second attaching / detaching connection means, the wrong insertion / error is caused. No connection occurs. According to the invention described in claim 6, in the storage means such as the wiring storage box, electric function means such as a lamp unit and a sensor are locked at a position corresponding to a predetermined position of the game device such as a winning device. Since it is configured, if a game device such as a prize is attached to the main body of the game board in advance, and an electric function means such as a lamp unit and a sensor is attached to the storage means side such as a wiring storage box, the game board By unitizing each part, the manufacturing efficiency of the game board and pachinko game machine is further improved. Further, according to the invention described in claim 7, since the storage means such as the wiring storage box is configured to be superposed on the back side of the game board main body, the strength of the entire game board is further increased.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show an example of the configuration of a pachinko gaming machine using a gaming board that is an embodiment of the present invention. Figure 1
FIG. 1 is a front view showing an overall configuration of a pachinko machine 1 which is an example of a pachinko gaming machine provided with a game board according to an embodiment of the present invention in a state where a glass storage frame is opened. FIG. 2 is a perspective view showing the relationship between the front frame, the decorative frame, and the game board in the pachinko machine shown in FIG.

As shown in FIG. 1, the pachinko machine 1 is
A frame-shaped front frame 3 having the window 2 is hinged to one side of the machine frame 4 so as to be openable and closable by hinges 5 and 5, and a metal decorative frame 6 is screwed to the edge of the window 2 of the front frame 3. Fixed with a decorative frame, etc.
A glass storage frame is attached to the upper part of the inside, and an opening / closing panel 9 having an upper plate 8 is attached to the lower part of the decorative frame 6 so as to be openable and closable. A game board storage frame (not shown) is provided on the back surface of the front frame 3 so as to surround the window 2, and a hitting ball launching portion 14 is attached to the lower part of the back surface of the front frame 3. A frame board 13 for mounting the game board 12 is attached to the lower part of the game board storage frame, and the upper part of the frame board 13 is used as the game board storage space.

Next, the structure of the game board 12 in FIG. 1 will be described. FIG. 3 is a front view showing a more detailed configuration of the surface of the game board 12 in FIG. As shown in FIG. 3, the game board 12 is formed by molding a plastic material or the like into a predetermined size, and various decorative openings or the like are appropriately drawn on the surface of the game board main body 20 provided with various openings and the like at predetermined positions. A sheet-shaped cell plate is attached, and a band-shaped guide rail 21 is fixed to the surface of the cell plate in a substantially circular shape to form a game area 22, and a large number of obstacle nails 23 are provided inside the game area 22. A windmill 27, a sky chucker 24 and a chucker 25 that change the direction and speed of a game ball (pachinko ball) while planting
(So-called "features"), variable prize device 26 (so-called electric prizes), prize devices such as passage gates 28, variable display device 29, etc. are arranged, and guide rails 21 are out at the center of the lowermost side. A mouth 32 is provided, a side lamp 30 and a side case 31 are provided inside and outside the game area 22, and a prize ball collecting gutter or the like for collecting prize balls discharged from each prize is provided on the back surface thereof. .. Here, the sky chucker 24, the chucker 25, the variable winning device 26 and the like correspond to winning means, the variable display device 29 and the like correspond to game displaying means, and the windmill 27, side lamps 30, side cases 31 and the like are decoration means. Corresponds to, and constitutes a gaming device by these whole.
Each of the winning means and each of the decoration means is provided with a sensor, a lamp unit, etc., which are not shown, and these sensors, a lamp unit, etc., constitute an electric function means.

With the above-mentioned configuration of the game board, when the player hits a pachinko ball, the pachinko ball has a certain probability of winning in the winning opening of the winning means on the game board, thereby receiving a certain number of prize balls. be able to. In addition, the variable winning device 26
Is a ball that has won a predetermined one of the winning means,
Alternatively, it is a winning tool that opens only for a certain period of time based on a ball that has passed through the passage gate 28. The variable display device 29 is provided with a plurality of light emitting diodes and the like, and displays by the number of light emission display or numerical display.

Next, referring to FIG. 4, the game board main body 2 in FIG.
The relationship between 0 and the variable winning device 26, the variable display device 29, etc. is shown as a perspective view seen from the front side of the game board board. As shown in FIG. 4, in the game board body 20, a variable winning device mounting opening 36 and a fitting hole 3 for mounting the variable winning device 26.
4C, 34D, 34E, and a variable display device mounting opening 39 and a fitting hole 34 for mounting the variable display device 29.
In addition to A and 34B, openings 37A, 37B, 37C and 3A are openings for winning holes and attachments for accessories such as the above sky chucker 24, chucker 25, passage gate 28 and the like.
8A, 38B, and the outlet 32 are provided.

Next, FIG. 5 is a perspective view showing a more detailed structure of the variable winning apparatus 26 shown in FIG. As shown in FIG. 5, the variable winning device 26 includes fitting protrusions 42C, 42D, 42E configured to be fitted into the fitting holes 34C, 34D, 34E of the game board body 20, respectively, and the variable winning device. A pair of locking members 43 configured to be accurately locked to the left and right end side surfaces of the mounting opening 36, and a wiring connection connector 41 connectable to a accessory connection connector described later are provided.

Next, FIG. 6 is a perspective view showing a more detailed structure of the variable display device 29 shown in FIG. As shown in FIG. 6, the variable display device 29 has fitting protrusions 46A and 46B configured to be fitted into the fitting holes 34A and 34B of the game board body 20, respectively, and the variable display device mounting opening 39.
A pair of locking members 49A and 49B and fitting frame members 47 and 48 configured to be accurately locked to the inner surface of the wire, and a wiring connector 4 connectable to a accessory connector described later.
5 is provided.

Next, FIG. 7 shows the relationship between the wiring storage box, which is storage means connected to the back side of the game board main body, which is a characteristic part of the present embodiment, and the ball gathering portion, on the back side of the game board main body. Is shown as a perspective view from FIG. As shown in FIG. 7, on the back side of the game board body 20, a wiring storage box 17 and a ball gathering portion 18 are superposed.

The wiring storage box 17 is, as shown,
The wiring box has a thin box shape and is provided with openings 74A, 74B, 74C and 74D through which the winning balls pass through the sky chucker 24, the chucker 25 and the variable winning device 26, and the outlet 32 is provided. 1
A control circuit connecting connector 54 and a connector housing portion 72 for housing the control circuit connecting connector 54 are provided on the back surface side of 7. The wiring storage box 17 and the ball gathering unit 1 described later are provided at substantially four corners of the wiring storage box 17.
An assembling through hole 75 for passing an assembling jig 85 for joining 8 and the game board main body 20 is provided.

Next, the ball gathering portion connected to the back side of the wiring storage box will be described with reference to FIG. As shown in FIG. 7, the ball shifting portion 18 is similar to the wiring storage box 17 at the position of the ball shifting portion mounting plate 18P corresponding to the winning ball passage openings 74A, 74B, 74C and 74D and the outlet 32. Provide an opening (not shown),
A ball guide gutter 80 that guides the pachinko balls that pass through these openings to a predetermined position is provided, and a connector opening 76 is provided at a position corresponding to the connector housing 72.
Is provided, and at the four corners of the ball gathering portion 18, the ball gathering portion 18 and the wiring storage box 17 are provided in the game board body 20.
Through hole 7 for passing through an assembling jig 85 to be joined to
5 are provided. As shown in FIG. 7, the control circuit connecting connector 54 is configured to be attachable / detachable through the connector opening 76 and the control circuit 15 which is an electrical control means and the wiring connecting connector 55, and thus the second detachable connection. It corresponds to the means.

Next, FIG. 8 shows the wiring storage box 1 described above.
7 shows a more detailed configuration of 7 as a perspective view. The wiring storage box 17 includes a wiring storage box main body 70 shown in FIG. 8A and a wiring storage box cover plate 7 shown in FIG. 8B.
1 and. As shown in FIG. 8 (A), the wiring storage box main body 70 includes a plate member 70P and a ceiling chucker 24.
In addition to the openings 74A, 74B, 74C and 74D through which the winning balls pass, the chucker 25 and the variable winning device 26 are provided with the outlet 32.

Further, in the wiring storage box main body 70, the control circuit 15 which is an electrical control means and the wiring connection connector 5 are provided.
5, a control circuit connecting connector 54 which is a detachable second connecting / disconnecting means for connecting / disconnecting, and an operation drive to the above-mentioned chucker 25 and the like arranged from the control circuit connecting connector 54 toward each winning prize or the like. Wiring assembly 52, which is an electrical connecting means for supplying power for emitting light, emitting light, or transmitting and receiving electrical signals for control, and the wiring assembly 52.
And accessory boards connectors 53A to 53D that are detachably connectable first detachable connection means for connecting the prize winning tools and the like, and lamp substrates 56 and 57 to which the lamp unit 33 is attached, Lamp board 58A,
58B etc. are installed. Then, at approximately four corners of the wiring storage box main body 70, an assembly jig 85 for joining the wiring storage box 17 and the ball shifting portion 18 to the game board main body 20.
A through hole 75 for assembling for passing through is provided. Here, the wiring assembly 52 and the accessory connector 53
A to 53D and the control circuit connecting connector 54 constitute an electrical connecting means.

On the other hand, the wiring storage box cover plate 71 has openings 74A, 7 through which the balls won in the sky chucker 24, the chucker 25 and the variable winning device 26 pass through the plate material 71P.
4B, 74C and 74D are provided, and an outlet 32 is provided. Further, the wiring storage box cover plate 71 is provided with a connector storage portion 72 for storing the control circuit connection connector 54, and the wiring storage box cover plate 71 is provided.
At approximately four corners of the above, there are provided through holes 75 for assembly through which an assembly jig 85 for joining the wiring storage box cover plate 71 and the ball shifting portion 18 to the game board main body 20 is inserted.

The wiring storage box main body 70 and the wiring storage box lid plate 71 can be formed by adhering each frame member, dowel projection 73, etc. to the plate members 70P and 71P, but of course, a plastic material or the like. The wiring storage box main body 70 and the wiring storage box cover plate 71 including the recess may be formed by injection molding of a plastic material or the like.

With this structure, the wiring assembly, the connectors, etc. are securely housed in the wiring storage box 17, and do not project outward from the rear surface of the game board body 20 to the rear of the pachinko machine. In the worst case, the control circuit may be destroyed due to accidents such as the wiring cord getting caught by something when the front frame is opened or closed, and noise may jump into the wiring from other electrical equipment. It is possible to prevent such a situation.

With this structure, the accessory connection connectors 53A to 53D are fixed to the wiring storage box body 70 side in advance, so that each accessory is attached to the accessory board from the front side of the game board body 20. Openings (eg 36 or 39)
By simply inserting and inserting into, the accessory can be attached and electrically connected at the same time and easily. Since the control circuit connecting connector 54 collects the wirings from each accessory and connects them to the control circuit 15 via the wiring connecting connector 55, erroneous insertion / misconnection of the connector does not occur. Further, the wiring storage box body 70 and the wiring storage box lid plate 71
When is formed of a metal material, an electromagnetic shielding effect is added, which is more effective in reducing noise.

Next, referring to FIG. 9, the game board 12 of FIG.
A more detailed configuration in the vicinity of the sky chucker and the passage gate will be described. FIG. 9A shows the game board 12 of FIG.
9B is a cross-sectional view as seen from the direction I in FIG.
It is sectional drawing seen from the II direction of (A). FIG. 9 (A),
As shown in FIG. 9B, on the back surface of the game board body 20,
The wiring storage box 17 and the ball gathering portion 18 are superposed on each other. The wiring storage box 17 is internally provided with 052 and 053A, and the ball draw portion 18 is integrated with a ball guide gutter 80.

With this construction, the wiring storage box 17 is constructed by locking the lamp unit, the sensor and the like at the positions corresponding to the predetermined positions of the respective accessories and so on. If each accessory is attached in advance and the lamp unit, the sensor, etc. are attached in advance in the wiring storage box 17, the production efficiency of the game board and the pachinko gaming machine is further improved by unitizing each component of the game board,
Furthermore, since the wiring storage box 17 and the ball gathering portion 18 are superposed on the rear surface side of the game board body 20, the strength of the entire game board is further increased.

The present invention is not limited to the above embodiment. The above-mentioned embodiments are mere examples, have substantially the same configuration as the technical idea described in the scope of claims of the present invention, and have the same operational effect It is included in the technical scope of the invention.

[0025]

As described above, according to the present invention,
A game machine or lamp unit such as an accessory, a wiring assembly that connects electrical functional means such as a sensor and an electric control means such as a control circuit, and an electrical connection means such as a connector to a storage means such as a wiring storage box. Since it is built-in and does not project to the outside rear from the back surface of the game board body, the wiring cord etc. gets caught by something when transporting the pachinko machine or opening and closing the front frame, which is a problem with conventional game boards It is possible to prevent an accident such as, or a situation in which noise jumps into the wiring from another electric device, the control circuit malfunctions, and in the worst case, the control circuit is destroyed. Further, the electrical connection means such as the wiring assembly and the connector is a first attachment / detachment connection means such as a accessory connection connector that is detachably connectable to a game device such as an accessory or an electric functional means such as a lamp unit and a sensor. Therefore, it is possible to easily connect the gaming device such as a role object or the electric functional means such as the lamp unit and the sensor to the electric connecting means such as the wiring assembly and the connector. The electrical connection means such as the wiring assembly and the connector has the second attachment / detachment connection means such as the control circuit connection connector which is detachably connectable to the electrical control means such as the control circuit. It is possible to easily connect electrical control means such as the above with electrical connection means such as a wiring assembly and a connector. Further, since the first attachment / detachment connection means such as the accessory connection connector is locked to the storage means, the gaming device such as the accessory or the electric function means such as the lamp unit and the sensor is inserted from the front side of the game board. Just by doing, it is possible to simultaneously and easily attach and electrically connect the game device such as the accessory or the electric functional means such as the lamp unit and the sensor to the game board body. Further, the second attaching / detaching connecting means such as the control circuit connecting connector is locked to the accommodating means, so that the electric control means such as the control circuit can be simultaneously and easily controlled only by inserting from the back side of the game board. The electric control means such as a circuit can be attached to and electrically connected to the game board body. In addition, the second attachment / detachment connection means such as a control circuit connection connector collects wirings from the game device such as an accessory or electric functional means such as a lamp unit and a sensor, and the control circuit is connected through the second attachment / detachment connection means. Since it is connected to electrical control means such as, there will be no erroneous insertion or connection. Further, since the storage means such as the wiring storage box is configured by incorporating a wiring assembly, an electrical connection means such as a connector, and the like, an electrical control means such as a control circuit and a gaming device or a lamp unit such as an accessory, The error in the length of the wiring cord with respect to the electrical function means such as the sensor can be absorbed by arranging the wiring inside the storage means such as the wiring storage box. In addition, in the storage means such as the wiring storage box, the electric functional means such as the lamp unit and the sensor are locked at a position corresponding to a predetermined position of the game device such as a character object, so that the game board main body side If a game device such as an accessory is attached in advance, and an electric function means such as a lamp unit or a sensor is attached in advance on the side of the storage means such as the wiring storage box, the game board and the game board can be formed by unitizing each part of the game board. It has an advantage that the manufacturing efficiency of the pachinko gaming machine is further improved. Further, since the storage means such as the wiring storage box is constructed by being attached to the back side of the game board body, the strength of the entire game board is further increased.

[Brief description of drawings]

FIG. 1 is a front view showing the overall configuration of a pachinko machine provided with a game board according to an embodiment of the present invention with a glass storage frame opened.

2 is a front frame and a decorative frame in the pachinko machine shown in FIG.
And is a perspective view showing the relationship with the game board.

FIG. 3 is a front view showing a more detailed structure of the surface of the game board in FIG.

FIG. 4 is a perspective view showing the relationship between the game board main body, the variable winning device, the variable display device, and the like in FIG. 3 from the front surface side of the game board plate material.

FIG. 5 is a perspective view showing a more detailed configuration of the variable winning apparatus in FIG.

6 is a perspective view showing a more detailed configuration of the variable display device in FIG.

FIG. 7 is a perspective view showing a relationship between a wiring storage box, a ball gathering portion, and the like connected to the back surface side of the game board body in FIG. 4 from the back surface side of the game board body.

8 is a perspective view showing a more detailed configuration of the wiring storage box in FIG. 7, FIG. 8 (A) showing a wiring storage box main body, and FIG. 8 (B) showing a wiring storage box cover plate.

9 is a cross-sectional view showing a more detailed configuration in the vicinity of the ceiling chucker and the passage gate in FIG.

[Explanation of symbols]

 1 Pachinko machine 2 Window part 3 Front frame 4 Machine frame 5 Hinge 6 Decorative frame 7 Glass storage frame 8 Upper plate 9 Opening panel 10 Lower plate 11 Launching operation part 12 Game board 13 Frame board 14 Hitting ball launching part 15 Control circuit 17 Wiring storage Box 18 Ball gathering part 18P Ball gathering part mounting plate 20 Game board body 21 Guide rail 22 Game area 23 Obstacle nail 24 Sky chucker 25 Chucker 26 Variable winning device 27 Windmill 28 Passing gate 29 Variable display device 30 Side lamp 31 Side case 32 Out Mouth 33 Lamp unit 34A to 34E Fitting hole 36 Variable prize winning device mounting opening 37A to 37C Prize winning device mounting opening 39 Variable display device mounting opening 40A, 40C Lamp mounting opening 41 Wiring connector 42C to 42E Fitting protrusion 43 Locking member 45 Wiring connector 46A, 4 6B Fitting protrusion 47 Fitting frame member 48 Fitting frame member 49A, 49B Locking member 52 Wiring assembly 53A to 53D accessory connection connector 54 control circuit connection connector 55 wiring connection connector 70 wiring storage box body 70P plate material 71 wiring storage box Cover plate 71P Plate material 72 Connector storage portion 73 Dowel protrusion 74A to 74D Winning ball passage opening 75 Assembly through hole 76 Connector opening 80 Ball guide trough 85 Assembly jig

Claims (7)

[Claims] 1. A game board main body in which a plurality of obstacle nails that change the flow direction of an ejected hit ball are implanted, a winning means attached to the game board main body for receiving the hit ball, or the game board main body. A game device including a game display unit attached to the game display unit for displaying a game situation regarding the hit ball, or a decoration unit attached to the game board main body to increase the interest of the game, and an electric function attached to a predetermined position of the game device. And an electric control unit for controlling the game device or the electric function unit, an electric connection unit for connecting the game device or the electric function unit and the electric control unit, A gaming board of a pachinko gaming machine, characterized by comprising: a storing means having an electrical connecting means provided therein. 2. The pachinko game machine according to claim 1, wherein the electrical connection means has a first attachment / detachment connection means that is detachably connectable to the gaming device or the electrical function means. Game board. 3. A gaming board of a pachinko gaming machine according to claim 1 or 2, wherein the electrical connecting means has a second detachable connecting means detachably connectable to the electrical control means. A gaming board of a pachinko gaming machine characterized by. 4. The game board of a pachinko gaming machine according to claim 2, wherein the first attachment / detachment connection means is locked to the storage means. 5. The game board of a pachinko game machine according to claim 3, wherein the second attachment / detachment connection means is locked to the storage means. 6. The game board of a pachinko game machine according to claim 1, wherein the storage means has the electric function means locked at a position corresponding to a predetermined position of the game device. 7. The game board of a pachinko game machine according to claim 1, wherein the housing means is attached to a back side of the game board body.