JP4367934B2 - Bullet ball machine - Google Patents

Description

  The present invention relates to a ball game machine installed in a game hall such as a pachinko parlor.

  In the present specification, a pachinko machine is described as an example of a ball game machine, and therefore, a pachinko ball is used as a game medium. However, the game medium includes other media such as medals. In addition, it is assumed that a pachinko ball enters a winning opening provided on the game board.

  In a pachinko machine installed in a game hall such as a pachinko shop, for example, as shown in Patent Document 1, game nails, lamps, and the like that change the winning direction and the falling direction of the pachinko ball are attached to the front of the game board. Then, it is common to change the winning probability of the pachinko ball to the winning opening by adjusting the inclination of the game nail. The inclination of the game nail is one of the elements for the player to select a pachinko machine where the game is played, and in addition to the inclination of the game nail, the aspect of the effect to be performed is also an element for selecting the pachinko machine. Yes.

In recent years, for example, the liquid crystal panel for displaying symbols can be enlarged to perform various effects, or a game can be performed for a long time without getting bored by the player, such as providing an accessory for performing effects. There is a tendency to provide pachinko machines with various ingenuity. Recently, a transparent plastic game board is used in place of a wooden game board, and a large liquid crystal panel is arranged behind the transparent game board. And the appeal to the player is further enhanced by performing the effect in the area over substantially the entire game area on the liquid crystal panel. This pachinko machine can display an image that has been difficult to express with a conventional liquid crystal panel due to size problems, and can therefore give the player a unique interest that has never existed before.
JP-A-5-253339

  By the way, in a pachinko machine using a transparent game board as described above, game nails are driven into a plastic game board. However, since the plastic game board is harder than the conventional wooden game board, adjusting the inclination of the game nail will leave the area of the hole into which the game nail has been inserted expanded, There was a problem that the holding power of the nail was lowered.

  The present invention has been made to solve the above-mentioned problems, and it is possible to prevent the holding power of the game nail from being lowered even if the inclination of the game nail driven into the transparent game board is adjusted. The purpose is to provide a machine.

  In order to achieve the above object, the present invention provides a ball game machine having a game board having a game area on the front side, wherein the game board is formed of a transparent plastic, and the plastic is arranged in front and back. A game nail that changes the falling direction of the game ball is configured to have at least a three-layer structure of a resin layer and an elastomer layer disposed between the synthetic resin layer so that the tip of the game nail reaches the synthetic resin layer on the rear surface side. It is driven from the game area side. Note that the game area indicates an area where a prize opening, a game nail, and the like are arranged and a game ball is launched to play a game. The game ball is a spherical ball for playing a game by dropping or rolling, such as a pachinko ball. Plastic means an organic polymer substance that has plasticity, is softened by heating, and can be molded into an arbitrary shape. Synthetic resin refers to a polymer compound that is excellent in impact resistance or mechanical strength. Elastomer is an intermediate property between plastic and rubber. It is soft and easy to process like rubber. It deforms when external force is applied, but it recovers to its original shape when external force is stopped. It shows a material with remarkable elasticity.

  Moreover, it is preferable to make the said elastomer layer into a multilayer by dividing | segmenting the said elastomer layer with the said synthetic resin layer.

  Moreover, it is preferable that the mechanical strength of the synthetic resin layers is set so that the mechanical strength of the synthetic resin layer positioned relatively on the front side is relatively low. The mechanical strength refers to physical properties such as hardness, tensile strength, and elongation. Low mechanical strength refers to at least one of hardness being relatively weak and tensile strength or elongation being large. Indicates the state. Further, in order to change the strength, there is a method in which the thickness is varied or the material is varied.

  Moreover, it is preferable that the yield stress of the said elastomer layers is set so that the yield stress of the said elastomer layer located in the said front side may become high relatively. Yield stress refers to the return force to the original shape when an external force is applied and released. For this reason, it can be paraphrased that it is excellent in restoring force that yield stress is high.

  According to the present invention, the game board is formed of a transparent plastic, and the plastic has at least a three-layer structure of a synthetic resin layer disposed in the front and back and an elastomer layer disposed between the synthetic resin layers. Since the game nail that changes the falling direction of the ball is driven from the game area side so that the tip reaches the synthetic resin layer on the rear surface side, the game nail is supported by at least two points by the synthetic resin layer, The holding force of the game nail can be maintained by the viscosity of the elastomer layer, and the inclination of the game nail can be adjusted to prevent the game nail holding force from being lowered.

  In addition, since the elastomer layer is divided into two or more layers by dividing the elastomer layer with the synthetic resin layer, each layer can be made thin and each layer can be easily molded. Moreover, it becomes possible to increase the location which supports a game nail with a synthetic resin layer, and it can prevent more reliably that the retention strength of a game nail falls.

  Further, since the mechanical strength of the synthetic resin layers is set so that the mechanical strength of the synthetic resin layer positioned relatively on the front side is relatively low, the synthetic resin on the front side through which the game nail penetrates When a game nail is driven into the layer, it is possible to prevent the front side synthetic resin layer from being impacted (particularly, the initial impact) from cracking or cracking. Accordingly, it is possible to prevent the synthetic resin layer on the front side from becoming white.

  In addition, since the yield stress of the elastomer layers is set so that the yield stress of the elastomer layer positioned relatively on the front side is relatively high, the tip of the game nail is used as a fulcrum and the base of the game nail is Even when the inclination of the game nail is changed by applying an external force, the hole in the elastomer layer on the front side is closed by the restoring force due to its elasticity. Thereby, even if the inclination of the game nail is adjusted, it is possible to prevent the hole of the elastomer layer from being expanded, and it is possible to prevent the holding force of the game nail from being lowered while easily adjusting the inclination of the game nail. .

  As shown in FIG. 1, the game board 11 of the pachinko machine (ball game machine) 10 has a game area 11a on the front side thereof. The game board 11 is transparent so that the rear side can be visually recognized. On the rear surface side of the game board 11, a symbol display device 12 is incorporated over almost the entire game area 11a. From the symbol display device 12, symbol variation display and stop display are performed. The symbol of the symbol display device 12 can be visually recognized through the game board 11.

  On the front surface of the game board 11, a start winning port 13, a normal winning port 14, an attacker 15, an out port 16, and the like are provided. The pachinko ball launched into the game area 11 a wins either the start winning opening 13 or the normal winning opening 14 or enters the out opening 16. When a winning occurs at the start winning opening 13, the symbol display device 12 displays a variation of symbols. When the winning symbol is displayed on the symbol display device 12, the attacker 15 is released up to a predetermined number of times.

  As shown in FIG. 2, the game board 11 has a three-layer structure. The three layers are disposed between the transparent and thermoplastic synthetic resin layer 20 covering the front side, the transparent and thermoplastic synthetic resin layer 21 covering the rear side, and the synthetic resin layer 20 and the synthetic resin layer 21. And a transparent and thermoplastic elastomer layer 22.

  Polycarbonate resin is used for the synthetic resin layers 20 and 21, and the synthetic resin layer 20 has lower mechanical strength than the synthetic resin layer 21. An acrylic resin is used as the material of the elastomer layer 22, and the elastomer layer 22 has lower mechanical strength than the synthetic resin layers 20 and 21.

  By setting the strength of each layer in this way, when the game nail 24 is driven into the synthetic resin layer 20 through which the game nail 24 penetrates, it is possible to prevent the synthetic resin layer 20 from being cracked or cracked by the impact. Accordingly, it is possible to prevent the synthetic resin layer 20 from becoming white. Even if the inclination of the game nail 24 is changed by applying an external force to the base side of the game nail 24 with the tip of the game nail 24 as a fulcrum, the hole of the elastomer layer 22 is closed by the restoring force due to its elasticity. Thereby, even if the inclination of the game nail 24 is adjusted, it is possible to prevent the hole of the elastomer layer 24 from being expanded, and it is easy to adjust the inclination of the game nail, but the holding power of the game nail is reduced. Can be prevented. Further, by using a polycarbonate resin and an acrylic resin, the visible light transmittance can be increased, and sufficient visibility for identifying the symbol displayed on the symbol display device 12 for playing a game can be obtained.

  In addition, while the thickness of the elastomer layer 22 is set between 1 and 3 mm, for example, the synthetic resin layer 21 is set between 5 and 7 mm, for example. Thereby, the thickness of the game board 11 is set to 10 mm, for example.

  When the game board 11 is molded, the game board 11 can be efficiently molded by molding the plastic into a bowl shape and pouring the melted elastomer into the bowl-shaped plastic.

  A game nail 24 that changes the falling direction of the pachinko ball 23 is driven into the game board 11. The game nail 24 is driven from the game area 11 a side so that the tip thereof reaches the synthetic resin layer 21. Thereby, since the game nail 24 is hold | maintained by the synthetic resin layers 20 and 21 at two points, the retention strength of the game nail 24 can be raised.

  In addition, the inclination of the game nail 24 is adjusted in order to change the probability that the pachinko ball 23 wins the start winning opening 13 or the normal winning opening 14, but this inclination is adjusted or the pachinko ball 23 that has been launched is adjusted. The game nail 24 may be subjected to a strong impact due to causes such as falling continuously on the game nail 24, and the hole through which the game nail 24 of the synthetic resin layer 20 penetrates may spread. However, since the holding force of the game nail 24 is maintained by the elasticity of the acrylic resin, it is possible to prevent the holding force of the game nail 24 from being lowered.

  In addition, when the acrylic resin is used, the game board 11 can be manufactured by a method such as heat welding, so that the game board 11 can be manufactured efficiently.

  The game nail 24 is driven into the game board 11 after being heated. As a result, it is possible to drive the game board 11 while melting the game board 11 with the game nail 24, so that the game nail 24 can be driven into the game board 11 smoothly.

  In addition, it is preferable to perform surface treatment, such as a hard coat, on the surface of the synthetic resin layer 20 or the synthetic resin layer 21. Thereby, if the surface treatment is performed on the synthetic resin layer 20, it is possible to prevent the surface of the synthetic resin layer 20 from being damaged by the pachinko balls 23 falling in the game area 11a. Further, if the synthetic resin layer 21 is subjected to surface treatment, the pachinko ball 23 won in the start winning port 13 and the normal winning port 14 or the pachinko ball 23 entered in the out port 16 on the rear surface of the game board 11. When the ball passage of the pachinko ball 23 led to a tank or the like installed on the rear side is formed, the surface of the synthetic resin layer 21 can be prevented from being damaged by the pachinko ball 23 passing through the ball passage.

  In the above embodiment, the game board 11 has a three-layer structure. However, if the elastomer layer is disposed between the front and rear synthetic resin layers, the game board 11 may have three or more layers.

  In this case, for example, as in the game board 30 of FIG. 3, the elastomer layer between the front and rear synthetic resin layers 31 and 32 is divided by the synthetic resin layer 33, and each elastomer layer is separated from the front-side elastomer layer 34 and the rear-surface side. What is necessary is just to comprise with the elastomer layer 35. FIG. With such a configuration, the game nail 24 can be held at three points by the synthetic resin layers 31, 32, 33, and the game nail 24 is more than the game board 11 constituted by two synthetic resin layers. The holding force can be increased.

  In the example of FIG. 3, the mechanical strength between the synthetic resin layers is set so that the mechanical strength increases in the order of the synthetic resin layer 31 → the synthetic resin layer 33 → the synthetic resin layer 32. The elastomer layer 34 has a higher yield stress than the elastomer layer 35. The synthetic resin layers 31, 32, 33 have higher mechanical strength than the elastomer layers 34, 35. For this reason, when the game nail 24 is driven into the synthetic resin layers 31 and 32 through which the game nail penetrates, it is possible to prevent the synthetic resin layers 31 and 32 from being cracked and cracked due to impact. Accordingly, it is possible to prevent the synthetic resin layers 31 and 32 from becoming white. Moreover, even if the inclination of the game nail 24 is changed by applying an external force to the base side of the game nail 24 with the tip of the game nail 24 as a fulcrum, the hole of the elastomer layer 34 near the base side of the game nail 24 is elastic. Due to the restoring force of the above, the hole of the elastomer layer 35 is surely closed. As a result, even if an external force is applied to the base side of the game nail 24 and the inclination of the game nail 24 is adjusted, the holes of the elastomer layers 34 and 35 can be prevented from remaining wide, and the inclination of the game nail 24 can be adjusted. Although it is easy, it is possible to prevent the holding force of the game nail 24 from being lowered.

  In the above embodiment, polycarbonate is used as the material of the synthetic resin layer, and acrylic resin is used as the material of the elastomer layer. Examples of the material of the synthetic resin layer include modified polyphenylene ether (mPPE), polysulfone (PSF), and polyether sulfone. Amorphous resins such as (PES), polyarylate (PAR), polyamideimide (PEI), and thermoplastic polyimide (PI) may be used. Examples of the material for the elastomer layer include Kuraray Co., Ltd. Septon (registered trademark), Asaflex (registered trademark), Hylamin (registered trademark), and the like.

  In the above embodiment, a pachinko machine has been described as an example of a ball game machine, but the present invention can be applied to other ball game machines equipped with a game board.

It is a perspective view of a pachinko machine. It is a longitudinal cross-sectional view of a game board. It is the longitudinal cross-sectional view of the game board which made the synthetic resin layer multilayer.

Explanation of symbols

10 Pachinko machine (ball game machine)
DESCRIPTION OF SYMBOLS 11 Game board 11a Game area 20, 21, 31, 32, 33 Synthetic resin layer 22, 34, 35 Elastomer layer 23 Pachinko ball (game ball)
24 game nails

Claims (4)

In a ball game machine equipped with a game board having a game area on the front side,
The game board is formed of a transparent plastic, and the plastic has at least a three-layer structure of a synthetic resin layer disposed in front and back and an elastomer layer disposed between the synthetic resin layers,
A bullet ball game machine characterized in that a game nail that changes the falling direction of a game ball is driven from the game area side so that a tip of the game nail reaches the synthetic resin layer on the rear surface side.   2. The ball game machine according to claim 1, wherein the elastomer layer is divided into two or more layers by dividing the elastomer layer with the synthetic resin layer. The ball game machine according to claim 2, wherein the yield stress of the elastomer layers is set so that the yield stress of the elastomer layer relatively positioned on the front side is relatively high. The mechanical strength of the synthetic resin layers is set so that the mechanical strength of the synthetic resin layer positioned relatively on the front side is relatively low. The bullet ball game machine described.

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