JP2013252217A - Game machine - Google Patents

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JP2013252217A
JP2013252217A JP2012128566A JP2012128566A JP2013252217A JP 2013252217 A JP2013252217 A JP 2013252217A JP 2012128566 A JP2012128566 A JP 2012128566A JP 2012128566 A JP2012128566 A JP 2012128566A JP 2013252217 A JP2013252217 A JP 2013252217A
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photocatalyst
game ball
game
photocatalyst member
gaming machine
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JP5938591B2 (en
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Takumi Maejima
拓己 前島
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Asama Factory Co
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Asama Factory Co
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Abstract

PROBLEM TO BE SOLVED: To provide a game machine capable of maintaining effects of a photocatalyst for a long period.SOLUTION: A game machine places a photocatalyst member 11 at a position where game balls 8 are in contact. The photocatalyst member 11 connects photocatalyst particles with organic binder, removes dirt of the game balls 8 that are in contact with the photocatalyst member 11 by irradiating the photocatalyst member 11 with light beam, and attaches the photocatalyst particles to the game balls 8 to scatter them inside a game board 1 by having the photocatalyst member 11 come in contact with the game balls 8.

Description

本発明は、光触媒反応により遊技球及び遊技盤内を継続的に浄化させる遊技機に関する。   The present invention relates to a gaming machine that continuously purifies a game ball and a game board by a photocatalytic reaction.

パチンコ機等の遊技機は通常遊技店やゲームセンター等の喫煙可能な場所に設置されるため、遊技盤の表面や遊技球には煙草のヤニ等の汚れが付着する。また不特定多数の者に使用されるので、雑菌も付着しやすい。そのため、従来から光触媒を利用して、遊技機や遊技球の清掃作業の負担を軽減する技術が採用されている。   A gaming machine such as a pachinko machine is usually installed in a smoking place such as a game store or a game center, so that dirt such as cigarette dust adheres to the surface of the game board and the game ball. Moreover, since it is used by an unspecified large number of people, various germs are likely to adhere. For this reason, conventionally, a technology has been adopted that uses a photocatalyst to reduce the burden of cleaning work on gaming machines and game balls.

例えば、特許文献１に示す遊技球研磨装置は、揚送用革ベルトと研磨用布ベルトとで遊技球を挟みながら揚送するものであり、一方のベルトの表面に光触媒を施してある。この光触媒に紫外線を照射すると、空気中の水蒸気からＯＨラジカルを生成し、このＯＨラジカルの酸化力で遊技球に付着した有機物を分解除去することができる。しかし、こうした装置は、島設備に取り付けられる複数台の遊技機の遊技球を一度に研磨処理するため、研磨用布ベルトを頻繁に交換しなければならず、ランニングコストが大きいという問題があった。また、ベルトの摩耗によって繊維埃が発生するため、メンテナンスに手間がかかるという問題もあった。   For example, a game ball polishing apparatus shown in Patent Document 1 is for lifting a game ball sandwiched between a lifting leather belt and a polishing cloth belt, and a photocatalyst is applied to the surface of one of the belts. When this photocatalyst is irradiated with ultraviolet rays, OH radicals are generated from water vapor in the air, and organic substances attached to the game ball can be decomposed and removed by the oxidizing power of the OH radicals. However, since such a device grinds the game balls of a plurality of gaming machines attached to the island facility at a time, there is a problem in that the polishing cloth belt has to be frequently replaced and the running cost is high. . Further, since fiber dust is generated due to wear of the belt, there is a problem in that maintenance is troublesome.

この問題を回避するために、特許文献２又は３に示すように、遊技球や遊技機の表面を予め光触媒でコーティングしたものが提案されている。これらによれば、煙草のヤニ等空気中に浮遊する有機物が遊技球や遊技機の表面で分解されるので、汚れが付着しにくい。しかし、遊技球が遊技盤内に衝突したり、球同士がこすれ合うことを繰り返すことにより（使用経過により）、遊技球や遊技盤に形成したコート層が剥がれてしまうため、光触媒の効果が持続しないという問題があった。   In order to avoid this problem, as shown in Patent Document 2 or 3, a game ball or a game machine whose surface is coated with a photocatalyst in advance has been proposed. According to these, organic matter floating in the air, such as cigarette dust, is decomposed on the surface of the game ball or game machine, so that dirt is less likely to adhere. However, the effect of the photocatalyst is maintained because the game balls and the coating layer formed on the game board are peeled off due to repeated collision of the game balls in the game board and the rubbing of the balls with each other (due to the course of use). There was a problem of not doing.

特開平１１−２０７０１５号公報JP-A-11-207015 特開平１０−０５７６１４号公報Japanese Patent Laid-Open No. 10-057614 特開平１１−０１９２８１号公報Japanese Patent Laid-Open No. 11-012921

本発明の目的は前記問題を解決し、長期間に亘り光触媒の効果を持続させることができる遊技機を提供することである。   An object of the present invention is to provide a gaming machine that can solve the above problems and can maintain the effect of the photocatalyst for a long period of time.

上記課題を解決するためになされた本発明は、光触媒部材を遊技球が接触する位置に配置した遊技機において、前記光触媒部材は、光触媒粒子を有機バインダーで結合したものであり、この光触媒部材に光線を照射することにより、光触媒部材に接触する遊技球の汚れを除去するとともに、光触媒部材を遊技球に接触させることにより、有機バインダーの分解によって生じた光触媒粒子を遊技球に付着させて遊技盤内に分散させることを特徴とするものである。   The present invention made in order to solve the above problems is a gaming machine in which a photocatalyst member is disposed at a position where a game ball contacts, wherein the photocatalyst member is formed by binding photocatalyst particles with an organic binder. By irradiating the light beam, the dirt of the game sphere contacting the photocatalyst member is removed, and by bringing the photocatalyst member into contact with the game sphere, the photocatalyst particles generated by the decomposition of the organic binder are attached to the game sphere. It is characterized by being dispersed within.

また、前記光触媒部材を球通路に配置して遊技球に接触させることが好ましい。さらに、前記光触媒部材を板状体とし、球通路に回転可能に軸支することが好ましい。また、前記光触媒部材を遊技球よりも大きな径の塊とし、無整列状態の遊技球群内に混在させて、遊技球に接触させることもできる。   Further, it is preferable that the photocatalyst member is disposed in a ball passage and brought into contact with a game ball. Furthermore, it is preferable that the photocatalyst member is a plate-like body and is rotatably supported in a spherical passage. Further, the photocatalyst member may be a lump having a diameter larger than that of the game balls, mixed in a non-aligned game ball group, and brought into contact with the game balls.

本発明では、光触媒部材を遊技球が接触する位置に配置し、この光触媒部材に光線を照射する構成としている。これにより、光触媒部材の表面で光触媒反応が生じ、光触媒部材に接触する遊技球の汚れを除去することができる。また、光触媒粒子を固定するバインダーとして有機物を用いている。これにより、有機バインダーを積極的に分解し、これによって生じた光触媒粒子を遊技球に付着させて遊技盤内に分散させることができる。すなわち、光触媒粒子は遊技球を介して継続的に遊技領域に供給されるので、光触媒による洗浄効果を持続させることができる。さらに光触媒部材は、遊技球との摩擦により徐々に削られ、その粉末が遊技球に付着して遊技盤内に分散する。この粉末に蛍光灯や太陽からの光線があたることによっても遊技盤内の汚れを除去できる。   In the present invention, the photocatalyst member is arranged at a position where the game ball comes into contact, and the photocatalyst member is irradiated with light. As a result, a photocatalytic reaction occurs on the surface of the photocatalytic member, and the dirt on the game ball that contacts the photocatalytic member can be removed. Moreover, an organic substance is used as a binder for fixing the photocatalyst particles. Thereby, the organic binder can be actively decomposed, and the photocatalyst particles generated thereby can be attached to the game ball and dispersed in the game board. That is, since the photocatalyst particles are continuously supplied to the game area via the game balls, the cleaning effect by the photocatalyst can be maintained. Further, the photocatalytic member is gradually scraped by friction with the game ball, and the powder adheres to the game ball and is dispersed in the game board. Dirt in the game board can also be removed by hitting the powder with fluorescent light or light from the sun.

また請求項２のように、光触媒部材を球通路に配置して遊技球に接触させれば、玉通路を通過する度に遊技球の汚れを確実に除去できるとともに、遊技球に光触媒粒子を付着させることができる。さらに請求項３のように、光触媒部材を球通路に回転可能に軸支すれば遊技球の移動に伴って接触位置が変移するので、広範囲で遊技球の汚れを除去できる。また、請求項４のように、光触媒部材を遊技球よりも大きな径の塊とし、無整列状態の遊技球群内に混在させることにより、遊技球に光触媒粒子を満遍なく付着させることができる。   In addition, if the photocatalyst member is arranged in the ball passage and brought into contact with the game ball as in claim 2, the game ball can be reliably removed every time it passes through the ball passage, and the photocatalyst particles are attached to the game ball. Can be made. Further, if the photocatalyst member is rotatably supported on the ball passage as in claim 3, the contact position changes with the movement of the game ball, so that the contamination of the game ball can be removed over a wide range. Further, as described in claim 4, the photocatalyst member can be uniformly attached to the game sphere by making the photocatalyst member a lump having a larger diameter than the game sphere and mixing it in the non-aligned game sphere group.

装飾物や障害物を取り付ける前の遊技機の正面図である。It is a front view of the gaming machine before attaching an ornament or an obstacle. 装飾物や障害物を取り付ける前の遊技機の背面図である。It is a rear view of the gaming machine before attaching a decoration or an obstacle. 本実施形態の要部拡大断面図である。It is a principal part expanded sectional view of this embodiment. 遊技球の搬送状態を示す説明図である。It is explanatory drawing which shows the conveyance state of a game ball. 本実施形態の要部分解斜視図である。It is a principal part disassembled perspective view of this embodiment. 本実施形態の要部拡大断面図である。It is a principal part expanded sectional view of this embodiment.

以下に本発明の好ましい実施形態を示す。ここでは、遊技機の代表例であるパチンコ機を例に説明する。図１は装飾物や障害物を取り付ける前の遊技機の正面図である。１は遊技盤、２は遊技球８を遊技領域に案内するレール、３は遊技球を発射位置に搬送するための搬送装置、４は搬送装置３によって搬送された遊技球８を遊技領域に発射するための発射装置である。   Preferred embodiments of the present invention are shown below. Here, a pachinko machine that is a typical example of a gaming machine will be described as an example. FIG. 1 is a front view of the gaming machine before attaching a decoration or an obstacle. 1 is a game board, 2 is a rail for guiding the game ball 8 to the game area, 3 is a transport device for transporting the game ball to the launch position, and 4 is a game ball 8 transported by the transport device 3 to the game area Is a launching device.

搬送装置３は、図３及び図４に示すように、筒体の外面に縦方向に伸びるスクリュー溝を形成した球搬送スクリュー５と、球搬送スクリュー５を駆動するモータ６と、球搬送スクリュー５を覆うカバー７とからなる。球搬送スクリュー５とカバー７との間には遊技球８を発射位置に案内する球通路９が形成されており、モータ６の駆動により球搬送スクリュー５が回転し、この球通路９に沿って遊技球８を発射位置まで搬送する。   As shown in FIGS. 3 and 4, the conveying device 3 includes a spherical conveying screw 5 in which a screw groove extending in the vertical direction is formed on the outer surface of the cylinder, a motor 6 that drives the spherical conveying screw 5, and a spherical conveying screw 5. And a cover 7 for covering. A ball path 9 for guiding the game ball 8 to the launch position is formed between the ball transport screw 5 and the cover 7, and the ball transport screw 5 is rotated by the drive of the motor 6. The game ball 8 is transported to the launch position.

図５に示すように、本実施形態では、カバー７の側面の一部を遊技球８の発射方向に沿って開口させ、この開口部１０に円盤状の光触媒部材１１を収納した光触媒支持ホルダー１２を嵌合してある。これにより、光触媒部材１１を遊技球８に接触させることができる。図６に示すように、光触媒支持ホルダー１２は有底の円筒容器であり、底面中央から光触媒部材１１を回転可能に軸支する支持棒（支軸）１３を立設してある。この支持棒１３を光触媒部材１１の中心に形成した貫通孔１４に挿入し、光触媒支持ホルダー１２を開口部１０に嵌合させる。また、光触媒部材１１と支持ホルダー１２の間には光触媒部材１１をスクリュー５に押圧する押圧バネ１５と圧力を分散して伝達する押圧板１６が設置されている。この押圧バネ１５の付勢力により、光触媒部材１１が摩耗しても遊技球８との接触状態を維持することができる。なお球通路９の下側には光触媒部材１１に光線を照射するためのＬＥＤランプ１７が設置されており、モータ６の稼動状況に合わせて点灯するように設定されている。   As shown in FIG. 5, in this embodiment, a part of the side surface of the cover 7 is opened along the launch direction of the game ball 8, and the photocatalyst support holder 12 in which the disc-like photocatalyst member 11 is accommodated in the opening 10. Is fitted. Thereby, the photocatalyst member 11 can be brought into contact with the game ball 8. As shown in FIG. 6, the photocatalyst support holder 12 is a bottomed cylindrical container, and a support bar (support shaft) 13 that rotatably supports the photocatalyst member 11 from the center of the bottom surface is provided upright. The support bar 13 is inserted into a through hole 14 formed at the center of the photocatalyst member 11, and the photocatalyst support holder 12 is fitted into the opening 10. Further, between the photocatalyst member 11 and the support holder 12, a pressing spring 15 that presses the photocatalyst member 11 against the screw 5 and a pressing plate 16 that disperses and transmits the pressure are installed. Due to the urging force of the pressing spring 15, the contact state with the game ball 8 can be maintained even if the photocatalytic member 11 is worn. Note that an LED lamp 17 for irradiating the photocatalyst member 11 with a light beam is installed below the bulb passage 9 and is set to light up in accordance with the operating state of the motor 6.

この光触媒部材１１は、光触媒粒子を有機バインダーに練り込んだものであり、この光触媒部材１１に光線を照射することにより、光触媒部材１１の表面で光触媒反応を生じさせる。すなわち、光触媒は光線の照射を受けることによりＯＨラジカルを発生させ、その強力な酸化作用により有機物を分解するため、光触媒部材１１の表面に遊技球８を接触させることにより、遊技球８に付着した有機物（汚れ）を除去することができる。本実施形態では、光触媒粒子として紫外線応答型の二酸化チタン（ＴｉＯ２）を用いた。この場合には、光線として紫外線を用いることが好ましい。また、光線を蛍光灯などの屋内光や太陽光とする場合には、可視光応答型の光触媒を用いることが好ましい。これにより、紫外線よりバンドギャップエネルギーが狭くても、有機物を効率的に酸化分解することができる。この場合の光触媒粒子としては、例えば酸化タングステン（ＷＯ３）に白金（Ｐｔ）やパラジウム（Ｐｕ）、銅（Ｃｕ）などの除触媒を添加させたものや、二酸化チタンを窒素ドープあるいは硫黄ドープしたものを用いることが好ましい。また、有機バインダーとしては、キシレン、２−ブタノール、酢酸エチル、あるいはこれらの混合物を用いることができる。 The photocatalyst member 11 is obtained by kneading photocatalyst particles in an organic binder. A photocatalytic reaction is caused on the surface of the photocatalyst member 11 by irradiating the photocatalyst member 11 with light. That is, the photocatalyst generates OH radicals by being irradiated with light, and decomposes organic substances by its strong oxidizing action, so that the game ball 8 is brought into contact with the surface of the photocatalyst member 11 and attached to the game ball 8. Organic matter (dirt) can be removed. In the present embodiment, ultraviolet responsive titanium dioxide (TiO 2 ) is used as the photocatalyst particles. In this case, it is preferable to use ultraviolet rays as light rays. In addition, when the light beam is indoor light such as a fluorescent lamp or sunlight, it is preferable to use a visible light responsive photocatalyst. Thereby, even if the band gap energy is narrower than that of ultraviolet rays, organic substances can be efficiently oxidized and decomposed. As photocatalyst particles in this case, for example, tungsten oxide (WO 3 ) added with a removal catalyst such as platinum (Pt), palladium (Pu), copper (Cu), or titanium dioxide is doped with nitrogen or sulfur. It is preferable to use one. As the organic binder, xylene, 2-butanol, ethyl acetate, or a mixture thereof can be used.

また、光触媒粒子を固定するバインダーとして有機物を用いている。そのため、光触媒反応により有機バインダー自体も徐々に分解されることになる。本発明では、光触媒部材１１に光線を照射して、有機バインダーを積極的に分解することにより、この分解によって生じた光触媒粒子を遊技球に付着させて遊技盤１内に分散させるものである。これにより、継続的に遊技盤内でも光触媒反応を生じさせ、遊技盤１内の汚れを除去できる。なお、光触媒粒子は、光線照射による有機バインダーの分解の他に、光触媒部材１１が遊技球８との摩擦により徐々に削り取られることにより、遊技盤内に分散する。すなわち、遊技球８との摩擦により生じた粉末には光触媒粒子が含まれる。そのため、この粉末が遊技球８に付着して遊技盤内に分散し、この粉末に蛍光灯や太陽からの光線があたることにより遊技盤内でも光触媒反応を生じさせることができる。なお、光触媒部材１１の摩耗により遊技球８と接触しなくなった場合には、光触媒部材１１のみを交換すればよいので、メンテナンスの手間がかからない。   Moreover, an organic substance is used as a binder for fixing the photocatalyst particles. Therefore, the organic binder itself is gradually decomposed by the photocatalytic reaction. In the present invention, the photocatalyst member 11 is irradiated with light to actively decompose the organic binder, so that the photocatalyst particles generated by the decomposition adhere to the game ball and are dispersed in the game board 1. Thereby, a photocatalytic reaction can be continuously generated in the game board, and the dirt in the game board 1 can be removed. The photocatalyst particles are dispersed in the game board as the photocatalyst member 11 is gradually scraped by friction with the game ball 8 in addition to the decomposition of the organic binder by light irradiation. That is, the powder generated by friction with the game ball 8 contains photocatalyst particles. Therefore, the powder adheres to the game ball 8 and is dispersed in the game board, and a photocatalytic reaction can be caused in the game board when the powder is exposed to light from a fluorescent lamp or the sun. When the photocatalyst member 11 does not come into contact with the game ball 8 due to wear, only the photocatalyst member 11 needs to be replaced, so that maintenance is not required.

上記の通り、本実施形態では、カバー７の一部を開口させてこの開口部１０に光触媒部材１１を配置しているので、球通路９を通過する度に確実に遊技球８に光触媒粒子を付着させることができる。さらに光触媒部材１１を球通路９に回転可能に軸支しているので、遊技球の移動に伴って接触位置を変移させることができ、広範囲で遊技球の汚れを除去できる。なお、本実施形態では、光触媒部材１１を板状体としたが、遊技球よりも大きな径の塊とし、無整列状態の遊技球群内に混在させて、遊技球８に光触媒粒子を満遍なく付着させることもできる。   As described above, in this embodiment, a part of the cover 7 is opened and the photocatalyst member 11 is disposed in the opening 10, so that the photocatalyst particles are surely placed on the game ball 8 every time it passes through the ball passage 9. Can be attached. Further, since the photocatalyst member 11 is rotatably supported on the ball passage 9, the contact position can be changed with the movement of the game ball, so that the dirt on the game ball can be removed over a wide range. In the present embodiment, the photocatalyst member 11 is a plate-like body, but the photocatalyst particles are uniformly attached to the game balls 8 by making them a lump having a larger diameter than the game balls and mixing them in an unaligned game ball group. It can also be made.

以上に説明したように、本発明に係る遊技機は、光触媒部材１１を遊技球８が接触する位置に配置し、しかも光触媒粒子を固定するバインダーとして有機物を用いた。この光触媒部材１１にＬＥＤランプにより光線を照射することにより、有機バインダーを積極的に分解し、これによって生じた光触媒粒子を遊技球に付着させて遊技盤内に分散させることができる。さらに光触媒部材１１は、遊技球８との摩擦により徐々に削られ、その粉末を遊技球８に付着させて遊技盤１内に分散させることもできる。よって、光触媒部材１１を適宜交換すれば、半永久的に光触媒の効果を持続させることができる。なお、光触媒支持ホルダー１１は開口部１０に取り外し可能に嵌合されているので、光触媒部材１１を簡単に交換することができる。   As described above, in the gaming machine according to the present invention, the photocatalyst member 11 is disposed at a position where the game ball 8 contacts, and an organic substance is used as a binder for fixing the photocatalyst particles. By irradiating the photocatalyst member 11 with light from an LED lamp, the organic binder is actively decomposed, and the photocatalyst particles generated thereby can be attached to the game ball and dispersed in the game board. Further, the photocatalytic member 11 is gradually scraped by friction with the game ball 8, and the powder can be adhered to the game ball 8 and dispersed in the game board 1. Therefore, if the photocatalyst member 11 is appropriately replaced, the effect of the photocatalyst can be maintained semipermanently. Since the photocatalyst support holder 11 is detachably fitted in the opening 10, the photocatalyst member 11 can be easily replaced.

１ 遊技盤
２ レール
３ 搬送装置
４ 発射装置
５ 球搬送スクリュー
６ モータ
７ カバー
８ 遊技球
９ 球通路
１０ 開口部
１１ 光触媒部材
１２ 光触媒支持ホルダー
１３ 支持棒（支軸）
１４ 貫通孔
１５ 押圧バネ
１６ 押圧板
１７ ＬＥＤランプ DESCRIPTION OF SYMBOLS 1 Game board 2 Rail 3 Conveying device 4 Launching device 5 Ball conveying screw 6 Motor 7 Cover 8 Game ball 9 Ball passage 10 Opening portion 11 Photocatalyst member 12 Photocatalyst support holder 13 Support rod (support shaft)
14 Through-hole 15 Pressing spring 16 Pressing plate 17 LED lamp

Claims (4)

光触媒部材を遊技球が接触する位置に配置した遊技機において、
前記光触媒部材は、光触媒粒子を有機バインダーで結合したものであり、
この光触媒部材に光線を照射することにより、
光触媒部材に接触する遊技球の汚れを除去するとともに、光触媒部材を遊技球に接触させることにより、有機バインダーの分解によって生じた光触媒粒子を遊技球に付着させて遊技盤内に分散させることを特徴とする遊技機。 In a gaming machine in which a photocatalyst member is arranged at a position where a game ball contacts,
The photocatalyst member is obtained by binding photocatalyst particles with an organic binder,
By irradiating the photocatalyst member with light,
It removes dirt from the game ball that contacts the photocatalyst member, and by contacting the photocatalyst member to the game ball, the photocatalyst particles generated by the decomposition of the organic binder adhere to the game ball and are dispersed in the game board. A gaming machine. 前記光触媒部材を球通路に配置して遊技球に接触させることを特徴とする請求項１に記載の遊技機。   The gaming machine according to claim 1, wherein the photocatalyst member is disposed in a ball passage and is brought into contact with a game ball. 前記光触媒部材を板状体とし、球通路に回転可能に軸支したことを特徴とする請求項２に記載の遊技機。   The gaming machine according to claim 2, wherein the photocatalyst member is a plate-like body and is rotatably supported in a ball passage. 前記光触媒部材を遊技球よりも大きな径の塊とし、無整列状態の遊技球群内に混在させて、遊技球に接触させることを特徴とする請求項１に記載の遊技機。   The gaming machine according to claim 1, wherein the photocatalyst member is formed as a lump having a diameter larger than that of the game balls, mixed in an unaligned game ball group, and brought into contact with the game balls.
JP2012128566A 2012-06-06 2012-06-06 Game machine Expired - Fee Related JP5938591B2 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08206345A (en) * 1995-02-01 1996-08-13 Daiichi Shokai Co Ltd Ball polishing unit for pachinko ball
JPH09723A (en) * 1995-06-16 1997-01-07 Sophia Co Ltd Card type pachinko machine
JPH11207015A (en) * 1998-01-29 1999-08-03 Takeya Co Ltd Game ball reducing device
JP2000037555A (en) * 1998-07-22 2000-02-08 I C Denshi Kogyo Kk Pachinko ball and pachinko stand
JP2009089838A (en) * 2007-10-05 2009-04-30 Sophia Co Ltd Game machine having enclosed balls
JP2009273576A (en) * 2008-05-13 2009-11-26 Heiwa Corp Enclosed ball circulation type game machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08206345A (en) * 1995-02-01 1996-08-13 Daiichi Shokai Co Ltd Ball polishing unit for pachinko ball
JPH09723A (en) * 1995-06-16 1997-01-07 Sophia Co Ltd Card type pachinko machine
JPH11207015A (en) * 1998-01-29 1999-08-03 Takeya Co Ltd Game ball reducing device
JP2000037555A (en) * 1998-07-22 2000-02-08 I C Denshi Kogyo Kk Pachinko ball and pachinko stand
JP2009089838A (en) * 2007-10-05 2009-04-30 Sophia Co Ltd Game machine having enclosed balls
JP2009273576A (en) * 2008-05-13 2009-11-26 Heiwa Corp Enclosed ball circulation type game machine

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