JPH06304326A - Prize winning probability controller of pinball game machine - Google Patents
Prize winning probability controller of pinball game machineInfo
- Publication number
- JPH06304326A JPH06304326A JP5123486A JP12348693A JPH06304326A JP H06304326 A JPH06304326 A JP H06304326A JP 5123486 A JP5123486 A JP 5123486A JP 12348693 A JP12348693 A JP 12348693A JP H06304326 A JPH06304326 A JP H06304326A
- Authority
- JP
- Japan
- Prior art keywords
- probability
- symbol display
- winning device
- symbol
- prize winning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Pinball Game Machines (AREA)
- Display Devices Of Pinball Game Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、図柄変動装置を備えた
パチンコ機等の弾球遊技機の当たり発生確率制御装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hit probability control device for a ball game machine such as a pachinko machine equipped with a symbol changing device.
【０００２】[0002]
【従来の技術】従来、弾球遊技機、例えばパチンコ機に
おいて、遊技盤の中央部に、複数個の図柄表示部を有す
る図柄表示装置を備え、遊技球が所定の始動ゲ−トに入
った時に、図柄表示装置の各図柄表示部の図柄を所定時
間だけ変動させ、その変動後の停止図柄が所定の当たり
図柄となった時に、特定入賞装置を開状態に作動させる
ようにしたものがある。2. Description of the Related Art Conventionally, a ball game machine, for example, a pachinko machine, is provided with a symbol display device having a plurality of symbol display portions at the center of a game board, and a game ball enters a predetermined starting gate. Sometimes, the symbols on each symbol display unit of the symbol display device are changed for a predetermined time, and when the stopped symbol after the change becomes a predetermined hit symbol, the specific winning device is operated in an open state. .
【０００３】変動後の停止図柄が当たり図柄となる当た
り発生確率は、マイクロコンピューター等の制御装置内
において、予め乱数値等で設定されており、次のように
して高確率と低確率とに自動的に切り換えるようになっ
ている。即ち、ゲームの開始に際しての電源投入時に
は、低確率状態にある。そして、ゲームの開始後、遊技
球が所定の始動ゲートに入り、図柄表示装置の各図柄表
示部の図柄が変動した後、その各停止図柄が所定の当た
り図柄となった時に特定入賞装置を作動させ、特定入賞
装置を開状態にする。The probability of occurrence of a stop symbol after a change being a winning symbol is preset by a random number or the like in a control device such as a microcomputer, and is automatically set to a high probability and a low probability as follows. It is designed to be switched automatically. That is, when the power is turned on at the start of the game, there is a low probability state. Then, after the start of the game, the game ball enters a predetermined start gate, the symbols of each symbol display unit of the symbol display device fluctuate, and then the specific winning device is activated when each stop symbol becomes a predetermined hit symbol. Then, the specific winning device is opened.
【０００４】一方、これと同時に、当たり発生確率を低
確率から高確率に切り換える。そして、特定入賞装置に
入った遊技球の何れかが特別作動領域を通過すれば、広
幅の大入賞口等の特別入賞装置が一定時間だけ作動する
と共に、この特別入賞装置の作動中は、当たり発生確率
を強制的に高確率から低確率に戻す。なお、この特別入
賞装置に遊技球が入れば、その他の箇所に入った場合と
は異なり、遊技球１個に付き２倍程度の遊技球を賞球と
して払出し、遊技者に特別の利益を還元する。On the other hand, at the same time, the probability of hit occurrence is switched from a low probability to a high probability. Then, if any of the game balls that have entered the special winning device passes through the special operation area, the special winning device such as a wide big winning opening operates for a certain period of time, and while the special winning device is operating, The probability of occurrence is forcibly returned from high to low. In addition, if a game ball enters this special prize device, unlike the case where it enters into other places, about 2 times as many game balls will be paid out as a prize ball, and special profit will be returned to the player. To do.
【０００５】特別入賞装置の作動が停止すると、当たり
発生確率を作動前の高確率へと戻し、その高確率状態で
遊技を続行する。そして、特別入賞装置が作動する都
度、その作動中だけ当たり発生確率を低確率に戻し、こ
の特別入賞装置が複数回、例えば３回程度作動すれば、
その３回目の作動開始と同時に当たり発生確率を完全に
低確率に戻して低確率状態を維持し、特別入賞装置の作
動が停止しても、当たり状態にならない限り、再度高確
率状態には切り換わらないようになっている。When the operation of the special winning device is stopped, the winning probability is returned to the high probability before the operation, and the game is continued in the high probability state. Then, each time the special winning device is operated, the probability of hitting is returned to a low probability only during the operation, and if the special winning device is operated a plurality of times, for example, about three times,
Simultaneously with the start of the third operation, the probability of hit occurrence is completely returned to a low probability to maintain a low probability state, and even if the special winning device stops operating, it is switched to the high probability state again unless it becomes a hit state. It will not be replaced.
【０００６】[0006]
【発明が解決しようとする課題】従来のパチンコ機で
は、低確率時に図柄表示装置の各図柄表示部の図柄が変
動した後、その停止図柄が当たり図柄を表示した時に、
当たり発生確率を低確率から高確率に切り換え、また高
確率状態で特別入賞装置が複数回作動した時に、その高
確率を解除して低確率に戻すようにしている。In the conventional pachinko machine, when the symbol of each symbol display section of the symbol display device changes at a low probability, when the stopped symbol hits and displays the symbol,
The probability of hitting is switched from a low probability to a high probability, and when the special winning device is operated a plurality of times in a high probability state, the high probability is canceled to return to a low probability.
【０００７】このため、特別入賞装置が複数回作動した
後は、図柄表示装置の停止図柄が当たり図柄となる当た
り状態が発生しない限り、低確率状態のままでゲームを
行わなければならない。従って、遊技者にとっては、極
めて興趣に欠けるゲームとならざるを得ない欠点があ
る。Therefore, after the special winning device has operated a plurality of times, the game must be played in the low-probability state unless a hit state occurs in which the stop symbol of the symbol display device is the symbol. Therefore, there is a drawback that the game has to be a game that is extremely uninteresting for the player.
【０００８】本発明は、このような従来の課題に鑑み、
所謂当たり状態の発生によって当たり発生確率を高確率
に切り換え、またその当たり後に図柄表示装置が設定回
数だけ変動した時に当たり発生確率を低確率に戻すよう
にして、常に変化に富み興趣にあふれたゲームを行なえ
る弾球遊技機の当たり発生確率制御装置を提供すること
を目的とするものである。The present invention has been made in view of such conventional problems.
The hit probability is switched to a high probability due to the occurrence of a so-called hit state, and when the symbol display device fluctuates a set number of times after that, the hit probability is returned to a low probability, and the game is always rich in change and full of interest. It is an object of the present invention to provide a hit probability control device for a ball game machine capable of performing.
【０００９】[0009]
【課題を解決するための手段】請求項１に記載の本発明
に係る弾球遊技機の当たり発生確率制御装置は、複数個
の図柄表示部19,20,21を有し、かつ遊技球が始動ゲ−ト
14に入った時に、各図柄表示部19,20,21の図柄が所要時
間だけ変動する図柄表示装置13と、各図柄表示部19,20,
21の変動後の停止図柄が所定の当たり発生確率に基づい
て発生する当たり図柄となった時に作動する入賞装置15
と、入賞装置15の作動時又は作動終了後に当たり発生確
率を低確率から高確率に切り換えると共に、図柄変動装
置13が設定回数Ｎだけ変動した時に当たり発生確率を高
確率から低確率に切り換える確率切換手段39とを備えた
ものである。The hit probability control device for a ball game machine according to the present invention as set forth in claim 1 has a plurality of symbol display portions 19, 20, 21, and the game ball is Starting gate
When entering 14, the symbol display device 13 in which the symbols of each symbol display unit 19, 20, 21 fluctuate for the required time, and each symbol display unit 19, 20,
The winning device which operates when the stop symbol after the change of 21 becomes a hit symbol generated based on a predetermined hit occurrence probability 15
And, when the winning device 15 is activated or after the operation is finished, the probability of winning is switched from a low probability to a high probability, and the probability of switching a probability of winning from a high probability to a low probability when the symbol variation device 13 is changed by the set number N. And means 39.
【００１０】請求項２に記載の本発明に係る弾球遊技機
の当たり発生確率制御装置は、複数個の図柄表示部19,2
0,21を有し、かつ遊技球が始動ゲ−ト14に入った時に、
各図柄表示部19,20,21の図柄が所要時間だけ変動する図
柄表示装置13と、各図柄表示部19,20,21の変動後の停止
図柄が所定の当たり発生確率に基づいて発生する当たり
図柄となった時に作動する特定入賞装置15と、特定入賞
装置15の作動中に遊技球が特別作動領域22を通過した時
に、この特定入賞装置15よりも有利な状態に作動する特
別入賞装置17と、特別入賞装置17の作動終了後に当たり
発生確率を低確率から高確率に切り換えると共に、特別
入賞装置17の作動終了後に図柄表示装置13が設定回数Ｎ
だけ変動した時に当たり発生確率を高確率から低確率に
切り換える確率切換手段39とを備えたものである。The hit probability control device for a ball game machine according to the second aspect of the present invention comprises a plurality of symbol display portions 19,2.
With 0,21 and when the game ball enters the starting gate 14,
The symbol display device 13 in which the symbols of each symbol display unit 19, 20, 21 fluctuate only for the required time, and the stop symbol after the variation of each symbol display unit 19, 20, 21 is generated based on a predetermined hit occurrence probability. When the game ball passes through the special operation area 22 during the operation of the specific winning device 15 and the specific winning device 15 which becomes a symbol, the special winning device 17 which operates in a more advantageous state than the specific winning device 15 And, after the operation of the special winning device 17 is finished, the winning probability is switched from a low probability to a high probability, and after the operation of the special winning device 17 is finished, the symbol display device 13 is set number N.
The probability switching means 39 for switching the probability of occurrence of a hit from a high probability to a low probability when it fluctuates.
【００１１】[0011]
【作用】請求項１に記載の制御装置では、遊技球が始動
ゲ−ト14に入ると、図柄表示装置13の複数個の図柄表示
部19,20,21の図柄が所要時間だけ変動する。そして、各
図柄表示部19,20,21の変動後の停止図柄が所定の当たり
発生確率に基づいて発生する当たり図柄となれば、入賞
装置15が作動する。In the control device according to the first aspect, when the game ball enters the starting gate 14, the symbols of the plurality of symbol display portions 19, 20, 21 of the symbol display device 13 are changed by the required time. Then, when the stopped symbol after the change of each symbol display unit 19, 20, 21 becomes a hit symbol generated based on a predetermined hit occurrence probability, the winning device 15 is operated.
【００１２】一方、この入賞装置15が作動して当たり状
態となれば、確率切換手段39が当たり発生確率を低確率
から高確率に切り換える。そして、その後、遊技球が始
動ゲ−ト14に入る度に図柄変動装置13の図柄表示部19,2
0,21が変動して、それが設定回数Ｎに達すると、確率切
換手段39が当たり発生確率を高確率から低確率に切り換
える。On the other hand, when the winning device 15 is activated and is in the winning state, the probability switching means 39 switches the winning probability from the low probability to the high probability. Then, after that, every time the game ball enters the starting gate 14, the symbol display section 19, 2 of the symbol variation device 13
When 0, 21 fluctuates and reaches the set number N, the probability switching means 39 switches the probability of hitting from high probability to low probability.
【００１３】請求項２に記載の制御装置では、特定入賞
装置15が作動して大当たり状態となった後、その作動中
に遊技球が特別作動領域22を通過すると、特定入賞装置
15よりも有利な特別入賞装置17が作動し、この特別入賞
装置17の作動終了後に確率切換手段39が当たり発生確率
を低確率から高確率に切り換える。そして、この特別入
賞装置17の作動終了後に、遊技球が始動ゲ−ト14に入る
度に図柄変動装置13の図柄表示部19,20,21が変動して、
それが設定回数Ｎに達すると、確率切換手段39が当たり
発生確率を高確率から低確率に切り換える。In the control device according to the second aspect, after the specific winning device 15 is activated and becomes a big hit state, when the game ball passes through the special operation area 22 during the operation, the specific winning device 15
The special winning device 17 that is more advantageous than 15 operates, and after the operation of the special winning device 17 ends, the probability switching means 39 switches the probability of hitting from low probability to high probability. Then, after the operation of this special winning device 17, each time the game ball enters the starting gate 14, the symbol display unit 19, 20, 21 of the symbol changing device 13 changes,
When it reaches the set number of times N, the probability switching means 39 switches the probability of hit occurrence from high probability to low probability.
【００１４】[0014]
【実施例】以下、本発明の実施例を図面に基づいて詳述
する。図１乃至図５は本発明の第１実施例を例示する。
図２はカード式パチンコ機の正面図である。図２におい
て、1 は機枠、2 は機枠1 の前面に開閉自在に枢着され
た前面枠である。前面枠2 にはガラス扉枠3 及び前面板
4 が装着され、またその後側に遊技盤5 が着脱自在に装
着されている。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 5 illustrate a first embodiment of the present invention.
FIG. 2 is a front view of the card-type pachinko machine. In FIG. 2, reference numeral 1 is a machine frame, and 2 is a front frame that is pivotally attached to the front surface of the machine frame 1 so as to be openable and closable. Glass frame 3 and front plate on front frame 2
4 is mounted, and game board 5 is detachably mounted on the rear side.
【００１５】遊技盤5 の前面には、打球を案内するガイ
ドレール6 が設けられると共に、上部入賞口7 、下部入
賞口8,9 、始動口10,11 、チューリップ式入賞口12、図
柄表示装置13、始動ゲート14、特定入賞装置15、センタ
ーケース16、特別入賞装置17、アウト口18、及び各種の
表示ランプが夫々設けられている。A guide rail 6 for guiding a hit ball is provided on the front surface of the game board 5, and an upper winning opening 7, a lower winning opening 8,9, a starting opening 10,11, a tulip type winning opening 12, a symbol display device. 13, a start gate 14, a specific winning device 15, a center case 16, a special winning device 17, an outlet 18, and various display lamps are provided respectively.
【００１６】図柄表示装置13は、図３に示すように３個
の図柄表示部19,20,21を有し、その各図柄表示部19,20,
21は10種類の異なる図柄、例えば０〜９までの数字図柄
をセグメント表示するようになっている。始動ゲート14
は図柄表示装置13の変動開始用であって、図柄表示装置
13の下方近傍に配置されている。特定入賞装置15は所謂
当たり用であって、図柄表示装置13の各図柄表示部19,2
0,21の変動後における停止図柄が、予め設定された当た
り図柄を表示する時に、所要時間だけ開状態に作動する
ようになっている。The symbol display device 13 has three symbol display parts 19, 20, 21 as shown in FIG. 3, and each of the symbol display parts 19, 20,
21 is designed to display 10 different types of symbols, for example, numbers 0 to 9 as segments. Starting gate 14
Is for the variation start of the symbol display device 13, the symbol display device
It is located near the bottom of 13. The specific winning device 15 is a so-called hit, each symbol display unit 19,2 of the symbol display device 13
The stop symbol after the change of 0, 21 is designed to operate in the open state for the required time when displaying the preset hit symbol.
【００１７】センターケース16は特定入賞装置15を通っ
た遊技球を受け入れるように特定入賞装置15の下方に配
置されている。センターケース16には、特別入賞装置17
の作動用の特別作動領域22が中央部に設けられ、その特
別作動領域22を遊技球が通過した時に、特別入賞装置17
が作動するようになっている。特別入賞装置17は所謂大
当たり用であって、広幅の大入賞口23を有し、遊技球が
特別作動領域22を通過した時に、その大入賞口23が所定
時間だけ開くようになっている。The center case 16 is arranged below the specific winning device 15 so as to receive the game balls that have passed through the specific winning device 15. The center case 16 has a special winning device 17
The special operation area 22 for the operation of is provided in the central portion, and when the game ball passes through the special operation area 22, the special winning device 17
Is working. The special winning device 17 is for so-called big hit, and has a wide big winning opening 23, and when the game ball passes through the special operation area 22, the big winning opening 23 is opened for a predetermined time.
【００１８】前面板4 には上皿24が装着され、この上皿
24の前縁部に、カード残金表示部25と球貸スイッチ26と
返却スイッチ27とが設けられている。前面枠2 の下部に
は下皿28と発射装置29用の操作ハンドル30とが設けら
れ、この操作ハンドル30を操作すれば、上皿24から遊技
球が１個づつ発射部に供給され、その遊技球を発射モー
タの作動によりガイドレール6 に沿って発射するように
なっている。The upper plate 24 is attached to the front plate 4 and
A card balance display unit 25, a ball lending switch 26, and a return switch 27 are provided at the front edge of 24. A lower plate 28 and an operating handle 30 for the launching device 29 are provided in the lower portion of the front frame 2, and if this operating handle 30 is operated, game balls are supplied from the upper plate 24 to the launching unit one by one, and The game ball is designed to be launched along the guide rail 6 by the operation of the launch motor.
【００１９】31は自動球貸機で、機枠1 の一側で固定枠
に縦長状に取り付けられている。自動球貸機31はカード
挿入口32と表示ランプ33とを有し、カード挿入口32にカ
ードを挿入すれば、表示ランプ33が点灯すると共に、上
皿24の前縁部のカード残金表示部25に残金が表示され、
またカードの挿入後に球貸スイッチ26を押せば、上皿24
に所定数の貸球が払い出され、更に遊技終了後に返却ス
イッチ27を押せば、残金を記録済みのカードがカード挿
入口32から返却されるようになっている。Reference numeral 31 is an automatic ball lending machine, which is attached to one side of the machine frame 1 in a vertically long shape on a fixed frame. The automatic ball lending machine 31 has a card insertion slot 32 and a display lamp 33. When a card is inserted into the card insertion slot 32, the display lamp 33 lights up and the card balance display portion on the front edge of the upper plate 24 is displayed. The balance is displayed on 25,
If you press the ball lending switch 26 after inserting the card,
A predetermined number of lent balls are paid out, and if the return switch 27 is pressed after the game is over, the card with the remaining balance recorded is returned from the card insertion slot 32.
【００２０】図１はパチンコ機の制御動作を司る制御系
のブロック図である。図１において、34は乱数発生手段
で、電源投入と同時に低確率当たり判定用乱数値と高確
率当たり判定用乱数値とを加算処理によって発生するよ
うになっている。FIG. 1 is a block diagram of a control system that controls the control operation of the pachinko machine. In FIG. 1, reference numeral 34 denotes a random number generating means, which is adapted to generate a low-probability-per-judgment random number value and a high-probability-per-judgment random number value at the same time when power is turned on.
【００２１】35は乱数判定手段で、遊技球が始動ゲート
14を通過した時に、乱数発生手段34が発生するその時点
の乱数値を抽出し、その乱数値を予め設定された当たり
図柄の数値と比較して当たりか否かを判定し、当たりな
らば当たり表示用データを、また外れならば外れ表示用
データを停止図柄表示用バッファーに格納するようにな
っている。35 is a random number determination means, a game ball is a starting gate
When passing 14, the random number value generated at that time by the random number generation means 34 is extracted, and the random number value is compared with a preset winning symbol value to determine whether or not it is hit. The display data is stored in the stop symbol display buffer if it is out.
【００２２】36は図柄変動処理手段で、図柄表示装置13
の各図柄表示部19,20,21の表示図柄を、目視により識別
できない程度の速度で所定時間だけ変動させ、その図柄
が記憶された停止図柄となるように各図柄表示部19,20,
21を駆動するようになっている。37は当たり判定手段
で、図柄表示装置13の各図柄表示部19,20,21の変動後の
停止図柄が予め設定された当たり図柄か否かを判定し、
当たり図柄の時に特定入賞装置15を所定時間だけ作動さ
せるようになっている。38は特定入賞装置15の作動処理
判定手段で、特定入賞装置15の作動処理中か否か、及び
作動処理終了か否かを判定するようになっている。Reference numeral 36 is a symbol variation processing means, which is a symbol display device 13
The display symbols of each symbol display unit 19, 20, 21 are varied for a predetermined time at a speed that cannot be visually identified, and each symbol display unit 19, 20, so that the symbol is a stored symbol.
It is designed to drive 21. 37 is a hit determination means, to determine whether or not the stop symbol after the fluctuation of each symbol display unit 19, 20, 21 of the symbol display device 13 is a preset hit symbol,
The specific winning device 15 is operated for a predetermined time when the winning symbol is obtained. Reference numeral 38 denotes an operation process determination means of the specific winning device 15, which determines whether the operation process of the specific winning device 15 is being performed and whether the operation process is completed.
【００２３】39は確率切換手段で、当たり発生確率が低
確率の場合には、特定入賞装置15の作動終了後に低確率
から高確率に切り換え、また当たり発生確率が高確率の
場合には、その作動終了後に図柄表示装置13が設定回数
Ｎだけ変動した時に高確率から低確率に切り換えるよう
になっている。この時の設定回数Ｎは、特定入賞装置15
の作動終了と同時に高確率状態判定用カウンターに設定
されるようになっている。なお、乱数発生手段34、乱数
判定手段35、図柄変動処理手段36、当たり判定手段37、
当たり図柄判定手段38、確率切換手段39等は、マイクロ
コンピュータ40により構成されている。Reference numeral 39 denotes a probability switching means, which switches from a low probability to a high probability after the operation of the specific winning device 15 is finished when the winning probability is low, and when the winning probability is high. After the operation, when the symbol display device 13 changes by the set number N, the probability is switched from the high probability to the low probability. At this time, the set number of times N is 15
When the operation of is completed, it is set to the high probability state determination counter. The random number generation means 34, the random number determination means 35, the symbol variation processing means 36, the hit determination means 37,
The winning symbol determination means 38, the probability switching means 39 and the like are configured by a microcomputer 40.
【００２４】41は球払出し装置で、遊技球が入賞口7,8,
9,12、始動口10,11 、特定入賞装置15に入った時に、１
個に付き７個の遊技球を払出し、また遊技球が特別入賞
装置17に入った時に、１個につき１５個の遊技球を払い
出すようになっている。42は入出力回路である。41 is a ball payout device, the game ball is a winning opening 7,8,
9,12, start opening 10,11, 1 when entering specific winning device 15
Seven game balls are paid out for each one, and when the game balls enter the special winning device 17, 15 game balls are paid out. 42 is an input / output circuit.
【００２５】次に、図４のフローチャートを参照しなが
ら、上記構成における動作を説明する。パチンコ機の電
源を投入すると（ステップＳ１）、確率切換手段39が高
確率状態判定用カウンターに低確率の０をセットし（ス
テップＳ２）、低確率状態でスタートする。そして、乱
数発生手段34で発生する高確率当たり判定用乱数値及び
低確率当たり判定用乱数値の更新処理を行う（ステップ
Ｓ３及びＳ４）。この場合、当たり発生確率を高確率時
に1/20、低確率時に1/200 とすれば、乱数発生手段34
は、例えば０〜１９までの高確率当たり判定用乱数値
と、０〜１９９９までの低確率当たり判定用乱数値とを
発生している。Next, the operation of the above configuration will be described with reference to the flowchart of FIG. When the power of the pachinko machine is turned on (step S1), the probability switching means 39 sets a low probability 0 to the high probability state determination counter (step S2) and starts in the low probability state. Then, the high-probability-per-judgment random number value and the low-probability-per-judgment random number value generated by the random number generator 34 are updated (steps S3 and S4). In this case, if the winning probability is 1/20 at high probability and 1/200 at low probability, the random number generating means 34
Generates a high-probability-per-judgment random number value of 0 to 19 and a low-probability-per-judgment random number value of 0 to 1999, for example.
【００２６】そこで、操作ハンドル30の操作によって遊
技盤5 上に発射された遊技球が始動ゲ−ト14を通過し、
この始動ゲ−ト14が遊技球を検出すると（ステップＳ
５）、乱数判定手段35がその時点の乱数値を抽出し、先
ず高確率状態判定用カウンターが０の低確率状態である
か、０以外の高確率状態であるかを判定した後（ステッ
プＳ６）、その乱数値と予め設定された当たり判定用デ
ータとから当たりか否かを判定して、当たりならば当た
り表示用データを、外れならば外れ表示用データを停止
図柄表示用バッファーに格納する（ステップＳ７又はＳ
８）。この場合は、電源投入後の低確率状態のままであ
るので、ステップＳ８の処理がなされる。Then, the game ball launched on the game board 5 by the operation of the operation handle 30 passes through the starting gate 14.
When this starting gate 14 detects a game ball (step S
5) After the random number determination means 35 extracts the random number value at that time, first, it is determined whether the high probability state determination counter is in the low probability state of 0 or in the high probability state other than 0 (step S6). ), It judges whether or not it is a hit from the random number value and preset hit judgment data, and if it is a hit, stores the hit display data, and if it is out, stores the hit display data in the stop symbol display buffer. (Step S7 or S
8). In this case, since the low probability state remains after the power is turned on, the process of step S8 is performed.
【００２７】次に図柄変動処理手段36で図柄変動処理中
か否かを判断し（ステップＳ９）、図柄表示装置13の各
図柄表示部19,20,21に表示される図柄を、目視により識
別できない程度の速度で変動させる図柄変動処理を行う
（ステップＳ10 )。すると各図柄表示部19,20,21の図柄
は所定時間だけ変動した後、左、右、中の順で停止す
る。この時の停止図柄は、停止図柄表示用バッファーに
格納された表示用データにより定まる。Next, the symbol variation processing means 36 judges whether or not the symbol variation processing is being performed (step S9), and the symbols displayed on the respective symbol display portions 19, 20, 21 of the symbol display device 13 are visually identified. A symbol variation process of varying at a speed that cannot be performed is performed (step S10). Then, the symbols on the symbol display portions 19, 20, 21 fluctuate for a predetermined time, and then stop in the order of left, right, and middle. The stop symbol at this time is determined by the display data stored in the stop symbol display buffer.
【００２８】そして、図柄表示装置13の図柄変動処理が
終了すると（ステップＳ11）、当たり判定手段37により
停止図柄が当たり図柄であるか否か、即ち当たりか外れ
かを判定する（ステップＳ12）。この当たり判定は、遊
技球が始動ゲ−ト14を通過した時点で抽出した当たり判
定用乱数値に基づいて、その乱数値を当たり判定用デー
タと比較して行う。When the symbol variation process of the symbol display device 13 is completed (step S11), the hit determination means 37 determines whether or not the stopped symbol is a hit symbol, that is, whether the hit symbol is out or not (step S12). This hit determination is performed by comparing the random number value with the hit determination data on the basis of the hit determination random number value extracted when the game ball passes through the starting gate 14.
【００２９】因みに、図柄表示装置13の各図柄表示部1
9,20,21に表示される図柄が全て同一となった場合を当
たりとするならば、その当たり図柄は、０，０，０から
９，９，９までの１０種類となる。そして、この各当た
り図柄に相当する１０種類の当たり判定用データが予め
設定されているので、抽出した低確率当たり判定用乱数
値を１０種類の当たり判定用データと比べ、一致する
と、特定入賞装置15を所定時間だけ作動させる作動処理
を行う（ステップＳ13及びＳ14）。また外れならば、そ
の他の遊技関係処理を行う（ステップＳ15）。Incidentally, each symbol display section 1 of the symbol display device 13
If all the symbols displayed in 9,20,21 are the same, the hit symbols are 10 kinds from 0,0,0 to 9,9,9. Then, since 10 types of hit determination data corresponding to each of the winning symbols are preset, the extracted low probability hit random number value is compared with the 10 types of hit determination data, and if they match, the specific winning device An operation process for operating 15 for a predetermined time is performed (steps S13 and S14). On the other hand, if it is off, other game-related processing is performed (step S15).
【００３０】例えば、図柄表示装置13の図柄表示部19,2
0,21の停止図柄が７，７，７であって、当たり判定手段
37が当たりと判定すれば、作動処理判定手段38で作動処
理中か否かを判定し( ステップＳ13) 、特定入賞装置15
を一定時間だけ開放する等の作動処理を行う（ステップ
Ｓ14) 。そして、その作動処理が終了すれば（ステップ
Ｓ16）、これと同時に高確率状態判定用カウンターＣＴ
に設定回数Ｎを設定し（ステップＳ17) 、確率切換手段
39により当たり発生確率を低確率から高確率に切り換え
る。For example, the symbol display portions 19 and 2 of the symbol display device 13
The stop design of 0,21 is 7,7,7, and hit determination means
If it is determined that 37 is a win, the operation process determination means 38 determines whether or not the operation process is being performed (step S13), and the specific winning device 15
Is operated for a certain period of time (step S14). When the operation process is completed (step S16), at the same time, the high probability state determination counter CT
Is set to the set number N (step S17), and the probability switching means is set.
The probability of hitting is switched from low probability to high probability by 39.
【００３１】当たり発生確率が高確率になれば、その高
確率状態でゲームを続行する。そして、始動ゲ−ト14が
遊技球の通過を検出すると（ステップＳ５) 、既に高確
率状態判定用カウンターには設定回数Ｎが設定されてい
るので、ステップＳ６からステップＳ７を経て処理さ
れ、その高確率状態判定用カウンターが１をカウントダ
ウンする（ステップＳ18) 。これに続いて各ステップＳ
９以下の処理がなされる。しかし、この時には高確率状
態にあるので、ステップＳ17での設定はなされない。If the winning probability becomes high, the game is continued in the high probability state. When the starting gate 14 detects the passage of the game ball (step S5), the counter N for high probability state determination has already been set to the set number N, and therefore the processing is performed through steps S6 to S7. The high probability state determination counter counts down 1 (step S18). Following this, each step S
Processing of 9 or less is performed. However, at this time, since it is in the high probability state, the setting in step S17 is not performed.
【００３２】以下、始動ゲ−ト14に遊技球が入り、図柄
表示装置13の表示が変動する都度、高確率状態判定用カ
ウンターがカウントダウンして行く。そして、図柄表示
装置13が高確率状態で設定回数Ｎ回だけ作動すると、高
確率状態判定用カウンターの値が０となり、当たり発生
確率が高確率から低確率へと切り換わる。従って、当た
り状態の終了後に高確率に切り換え、また図柄表示装置
13がＮ回作動すれば、高確率を解除して低確率へと戻す
ので、従来に比べて変化に富み興趣にあふれたゲームが
可能である。Hereinafter, each time the game ball enters the starting gate 14, and the display of the symbol display device 13 changes, the high probability state determination counter counts down. When the symbol display device 13 is operated in the high probability state for the set number of times N, the value of the high probability state determination counter becomes 0, and the hit occurrence probability is switched from the high probability to the low probability. Therefore, switching to a high probability after the end of the winning state, also the symbol display device
If 13 times is activated N times, the high probability is released and the low probability is returned to, so it is possible to play a game which is richer in variety and more exciting than the conventional one.
【００３３】なお、特定入賞装置15に入った遊技球は、
全てセンターケース16を通過するが、この時、遊技球が
中央部の特別作動領域22を通れば、特別入賞装置17が作
動して大入賞口23が開く。そして、これと同時に、特別
入賞装置17が作動状態にある間中、当たり発生確率は強
制的に高確率から低確率へと切り換えられる。従って、
この場合の図柄表示装置13、特定入賞装置15及び特別入
賞装置17の動作と、当たり発生確率の切り換えとの関係
は、図５に示すようになる。The game balls that have entered the specific winning device 15 are
All pass through the center case 16, but at this time, if the game ball passes through the special operation area 22 in the central portion, the special winning device 17 operates and the special winning opening 23 opens. At the same time, the winning probability is forcibly switched from the high probability to the low probability while the special winning device 17 is in the operating state. Therefore,
The relationship between the operation of the symbol display device 13, the specific winning device 15 and the special winning device 17 and the switching of the winning probability in this case is as shown in FIG.
【００３４】なお、この第１実施例では、特定入賞装置
15を入賞装置として説明し、この特定入賞装置15とは別
に特別入賞装置17を設けているが、特定入賞装置15に両
者の機能を持たせて入賞装置としても良いし、また入賞
装置はこれらに限定されず、遊技者の有利に働く機能を
有するものであれば十分である。更に、この第１実施例
では、特定入賞装置15の作動終了後に低確率から高確率
に切り換えるようにしているが、当たり判定後であれ
ば、特定入賞装置15の作動中に切り換えても良い。In the first embodiment, the specific winning device is
Although 15 is described as a winning device, and a special winning device 17 is provided separately from the specific winning device 15, the specific winning device 15 may be provided with both functions to serve as a winning device, and the winning device is However, it is not limited to the above, and it is sufficient as long as it has a function of favoring the player. Further, in the first embodiment, the probability is switched from the low probability to the high probability after the operation of the specific winning device 15 is finished, but it may be switched during the operation of the specific winning device 15 after the hit determination.
【００３５】図６は本発明の第２実施例を示す。図６に
おいて、43は特別入賞装置17の作動処理手段で、特別入
賞装置17の作動処理中か否か、及び作動処理終了か否か
を判定するようになっている。44は確率切換手段で、当
たり発生確率が低確率の場合には、特別入賞装置17の作
動終了後に低確率から高確率に切り換え、また当たり発
生確率が高確率の場合には、その作動終了後に図柄表示
装置13が設定回数Ｎだけ変動した時に高確率から低確率
に切り換えるようになっている。FIG. 6 shows a second embodiment of the present invention. In FIG. 6, 43 is an operation processing means of the special winning device 17, which determines whether or not the special winning device 17 is being operated, and whether or not the operation processing is completed. Probability switching means 44 switches from low probability to high probability after the operation of the special winning device 17 ends when the probability of winning is low, and when the probability of winning is high, after the operation ends. When the symbol display device 13 changes by the set number N, the probability is switched from the high probability to the low probability.
【００３６】次に、図７のフローチャートを参照しなが
ら、上記構成における動作を説明する。なお、図７にお
いて、ステップＳ16までは図４と同じである。この場合
は、当たり判定によって特定入賞装置15が作動しても、
低確率のままである。特定入賞装置15が作動した後、こ
の特定入賞装置15に入った遊技球の何れかがセンターケ
ース16の特別作動領域22を通過し、それを検出すると
（ステップＳ19）、作動処理判定手段43で特別入賞装置
17の作動処理中か否かを判定し（ステップＳ20) 、特別
入賞装置17の大入賞口23を所定時間だけ開放する処理を
行う（ステップＳ21) 。Next, the operation of the above configuration will be described with reference to the flowchart of FIG. Note that, in FIG. 7, up to step S16 is the same as in FIG. In this case, even if the specific winning device 15 is activated by the hit determination,
It remains a low probability. After the specific winning device 15 is activated, any of the game balls that have entered the specific winning device 15 passes through the special operation area 22 of the center case 16 and is detected (step S19), the operation process determining means 43 Special winning device
It is determined whether or not the operation process of 17 is in progress (step S20), and the process of opening the special winning opening 23 of the special winning device 17 for a predetermined time is performed (step S21).
【００３７】しかし、この時にも特別入賞装置17の作動
中であるため、当たり発生確率は低確率のままである。
特別入賞装置17の作動が終了すれば（ステップＳ22) 、
これと同時に高確率状態判定用カウンターＣＴに設定回
数Ｎを設定し（ステップＳ23) 、確率切換手段44により
当たり発生確率を低確率から高確率に切り換える。当た
り発生確率が高確率になれば、図４の場合と同様に、そ
の高確率状態でゲームを続行し、図柄表示装置13が設定
回数Ｎだけ変動した時に、高確率から低確率へと切り換
える。However, since the special winning device 17 is still in operation at this time as well, the winning probability remains low.
When the operation of the special winning device 17 is completed (step S22),
At the same time, the number of times N is set in the high-probability state determination counter CT (step S23), and the probability switching means 44 switches the hit occurrence probability from low probability to high probability. If the hit occurrence probability becomes high, the game is continued in the high probability state as in the case of FIG. 4, and when the symbol display device 13 changes by the set number N, the high probability is switched to the low probability.
【００３８】従って、所謂大当たり状態の終了後に当た
り発生確率を高確率に切り換え、またその後、図柄表示
装置13がＮ回作動すれば、高確率を解除して低確率へと
戻すので、従来に比べて変化に富み興趣に優れたゲーム
が可能である。この場合の図柄表示装置13、特定入賞装
置15、特別入賞装置17の動作と、当たり発生確率の切り
換えとの関係は、図８に示すようになる。Therefore, after the so-called big hit state is ended, the hit occurrence probability is switched to a high probability, and if the symbol display device 13 is operated N times thereafter, the high probability is canceled and the probability is returned to a low probability. It is possible to play games that are rich in variety and entertaining. The relationship between the operation of the symbol display device 13, the specific winning device 15, the special winning device 17 and the switching of the winning probability in this case is as shown in FIG.
【００３９】なお、この第２実施例での特定入賞装置1
5、特別入賞装置17は、前者に対して後者が遊技者に有
利に働くものであれば良く、実施例のものに限定される
ものではない。また特別作動領域22は、特定入賞装置15
の作動中を条件として遊技球を検出するものであれば十
分であり、センターケース16以外の箇所に設けても良
い。更に本発明は、パチンコ機に限定されるものではな
く、その他の弾球遊技機においても同様に実施できるこ
とは言うまでもない。The specific winning device 1 according to the second embodiment
5. The special winning device 17 is not limited to that of the embodiment, as long as the latter works better for the player than the former. In addition, the special operation area 22 is the specific winning device 15
It is sufficient as long as it can detect the game ball on the condition that the operation is being performed, and it may be provided at a place other than the center case 16. Further, it goes without saying that the present invention is not limited to a pachinko machine and can be similarly implemented in other ball game machines.
【００４０】[0040]
【発明の効果】請求項１に記載の本発明によれば、複数
個の図柄表示部19,20,21を有し、かつ遊技球が始動ゲ−
ト14に入った時に、各図柄表示部19,20,21の図柄が所要
時間だけ変動する図柄表示装置13と、各図柄表示部19,2
0,21の変動後の停止図柄が所定の当たり発生確率に基づ
いて発生する当たり図柄となった時に作動する入賞装置
15と、入賞装置15の作動時又は作動終了後に当たり発生
確率を低確率から高確率に切り換えると共に、図柄変動
装置13が設定回数Ｎだけ変動した時に当たり発生確率を
高確率から低確率に切り換える確率切換手段39とを備
え、入賞装置15が作動する所謂当たり状態の発生によっ
て当たり発生確率を高確率に切り換え、またその当たり
後に図柄表示装置13が設定回数Ｎだけ変動した時に当た
り発生確率を低確率に戻すようにしているので、常に変
化に富み興趣にあふれたゲームを行なえる利点がある。According to the present invention as set forth in claim 1, the game ball has a plurality of symbol display portions 19, 20, and 21, and the game ball is a starting gate.
At the time of entering the game 14, the symbol display device 13 in which the symbols of the symbol display portions 19, 20, 21 fluctuate for the required time, and the symbol display portions 19, 2
The winning device that operates when the stop symbol after the change of 0,21 becomes a hit symbol that is generated based on a predetermined probability of hit occurrence
15 and the probability that the winning probability is switched from a high probability to a low probability when the winning probability 15 is activated or after the winning probability is switched from a low probability to a high probability, and when the symbol variation device 13 fluctuates by the set number N. With the switching means 39, the winning probability is switched to a high probability by the occurrence of a so-called hit state in which the winning device 15 operates, and after that, when the symbol display device 13 fluctuates by the set number N, the winning probability is low. Since it is set back to, there is an advantage that you can play games that are always rich in variety and entertaining.
【００４１】また請求項２に記載の本発明によれば、複
数個の図柄表示部19,20,21を有し、かつ遊技球が始動ゲ
−ト14に入った時に、各図柄表示部19,20,21の図柄が所
要時間だけ変動する図柄表示装置13と、各図柄表示部1
9,20,21の変動後の停止図柄が所定の当たり発生確率に
基づいて発生する当たり図柄となった時に作動する特定
入賞装置15と、特定入賞装置15の作動中に遊技球が特別
作動領域22を通過した時に、この特定入賞装置15よりも
有利な状態に作動する特別入賞装置17と、特別入賞装置
17の作動終了後に当たり発生確率を低確率から高確率に
切り換えると共に、特別入賞装置17の作動終了後に図柄
表示装置13が設定回数Ｎだけ変動した時に当たり発生確
率を高確率から低確率に切り換える確率切換手段39とを
備え、特別入賞装置17が作動する所謂大当たり状態の発
生によって当たり発生確率を高確率に切り換え、またそ
の大当たり後に図柄表示装置13が設定回数Ｎだけ変動し
た時に当たり発生確率を低確率に戻すようにしているの
で、更に変化に富み興趣に優れたゲームを行なえる利点
がある。Further, according to the present invention as set forth in claim 2, each of the symbol display portions 19 has a plurality of symbol display portions 19, 20 and 21, and when the game ball enters the starting gate 14. The symbol display device 13 in which the symbols of 20, 20, 21 fluctuate according to the required time, and each symbol display unit 1
Special winning device 15 that operates when the stop symbol after fluctuation of 9,20,21 becomes a hit symbol that occurs based on a predetermined hit occurrence probability, and a game ball is a special operation area during operation of the specific prize device 15. The special winning device 17 that operates in a more advantageous state than the specific winning device 15 when passing through 22, and the special winning device
After the operation of 17 is finished, the probability of winning is switched from a low probability to a high probability, and when the symbol display device 13 is changed by the set number N after the operation of the special winning device 17, the probability of switching the probability of winning from a high probability to a low probability. With the switching means 39, the special winning device 17 operates so-called jackpot state to switch the winning probability to a high probability, and after the jackpot, when the symbol display device 13 changes by the set number N, the winning probability is lowered. Since it is set back to the probability, there is an advantage that the game can be played with more variety and excitement.
【図１】本発明の第１実施例を示す制御系のブロック図
である。FIG. 1 is a block diagram of a control system showing a first embodiment of the present invention.
【図２】本発明の第１実施例を示すパチンコ機の正面図
である。FIG. 2 is a front view of the pachinko machine showing the first embodiment of the present invention.
【図３】本発明の第１実施例を示す表示部の説明図であ
る。FIG. 3 is an explanatory diagram of a display unit showing the first embodiment of the present invention.
【図４】本発明の第１実施例を示すフローチャートであ
る。FIG. 4 is a flowchart showing a first embodiment of the present invention.
【図５】本発明の第１実施例を示すタイムチャートであ
る。FIG. 5 is a time chart showing the first embodiment of the present invention.
【図６】本発明の第２実施例を示す制御系のブロック図
である。FIG. 6 is a block diagram of a control system showing a second embodiment of the present invention.
【図７】本発明の第２実施例を示すフローチャートであ
る。FIG. 7 is a flowchart showing a second embodiment of the present invention.
【図８】本発明の第２実施例を示すタイムチャートであ
る。FIG. 8 is a time chart showing a second embodiment of the present invention.
13 図柄表示装置 14 始動ゲ−ト 15 特定入賞装置 17 特別入賞装置 19,20,21 図柄表示部 22 特別作動領域 39 確率切換手段 44 確率切換手段 13 Design display device 14 Starting gate 15 Specific winning device 17 Special winning device 19,20,21 Design display area 22 Special operating area 39 Probability switching means 44 Probability switching means
Claims (2)
し、かつ遊技球が始動ゲ−ト(14)に入った時に、各図柄
表示部(19)(20)(21)の図柄が所要時間だけ変動する図柄
表示装置(13)と、各図柄表示部(19)(20)(21)の変動後の
停止図柄が所定の当たり発生確率に基づいて発生する当
たり図柄となった時に作動する入賞装置(15)と、入賞装
置(15)の作動時又は作動終了後に当たり発生確率を低確
率から高確率に切り換えると共に、図柄変動装置(13)が
設定回数(N) だけ変動した時に当たり発生確率を高確率
から低確率に切り換える確率切換手段(39)とを備えたこ
とを特徴とする弾球遊技機の当たり発生確率制御装置。1. A plurality of symbol display portions (19) (20) (21), and each symbol display portion (19) (20) when the game ball enters the starting gate (14). The symbol display device (13) in which the symbol of (21) fluctuates only for the required time, and the stop symbol after variation of each symbol display section (19) (20) (21) is generated based on a predetermined hit occurrence probability. The winning device (15) that operates when it becomes a symbol, and the probability of hitting is switched from low probability to high probability at the time of or after the operation of the winning device (15), and the symbol fluctuation device (13) sets the number of times (N ), A probability switching means (39) for switching the winning probability from a high probability to a low probability, and a hitting probability control device for a ball game machine.
し、かつ遊技球が始動ゲ−ト(14)に入った時に、各図柄
表示部(19)(20)(21)の図柄が所要時間だけ変動する図柄
表示装置(13)と、各図柄表示部(19)(20)(21)の変動後の
停止図柄が所定の当たり発生確率に基づいて発生する当
たり図柄となった時に作動する特定入賞装置(15)と、特
定入賞装置(15)の作動中に遊技球が特別作動領域(22)を
通過した時に、この特定入賞装置(15)よりも有利な状態
に作動する特別入賞装置(17)と、特別入賞装置(17)の作
動終了後に当たり発生確率を低確率から高確率に切り換
えると共に、特別入賞装置(17)の作動終了後に図柄表示
装置(13)が設定回数(N) だけ変動した時に当たり発生確
率を高確率から低確率に切り換える確率切換手段(39)と
を備えたことを特徴とする弾球遊技機の当たり発生確率
制御装置。2. A plurality of symbol display portions (19) (20) (21), and each symbol display portion (19) (20) when the game ball enters the starting gate (14). The symbol display device (13) in which the symbol of (21) fluctuates only for the required time, and the stop symbol after variation of each symbol display section (19) (20) (21) is generated based on a predetermined hit occurrence probability. When the game ball passes through the special operation area (22) during the operation of the specific winning device (15) and the specific winning device (15) which is activated when it becomes a symbol, it is more advantageous than the specific winning device (15). Special winning device (17) that operates in the state, and after switching the special winning device (17) operation probability from low probability to high probability, after the operation of the special winning device (17) symbol display device (13 ) Has changed by a set number of times (N), the probability of hitting is changed from a high probability to a low probability. Rate control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5123486A JPH07110299B2 (en) | 1993-04-26 | 1993-04-26 | Hit probability control device for ball game machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5123486A JPH07110299B2 (en) | 1993-04-26 | 1993-04-26 | Hit probability control device for ball game machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06304326A true JPH06304326A (en) | 1994-11-01 |
| JPH07110299B2 JPH07110299B2 (en) | 1995-11-29 |
Family
ID=14861824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5123486A Expired - Lifetime JPH07110299B2 (en) | 1993-04-26 | 1993-04-26 | Hit probability control device for ball game machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07110299B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0910394A (en) * | 1995-06-29 | 1997-01-14 | Sankyo Kk | Game machine |
| JP2000140285A (en) * | 1998-11-10 | 2000-05-23 | Toyomaru Industry Co Ltd | Game machine |
| JP2001238999A (en) * | 2000-03-01 | 2001-09-04 | Olympia:Kk | Game machine |
| JP2007089717A (en) * | 2005-09-27 | 2007-04-12 | Aruze Corp | Game machine |
| JP2009189872A (en) * | 2009-06-01 | 2009-08-27 | Toyomaru Industry Co Ltd | Game machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06254225A (en) * | 1993-03-09 | 1994-09-13 | Sophia Co Ltd | Game machine |
-
1993
- 1993-04-26 JP JP5123486A patent/JPH07110299B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06254225A (en) * | 1993-03-09 | 1994-09-13 | Sophia Co Ltd | Game machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0910394A (en) * | 1995-06-29 | 1997-01-14 | Sankyo Kk | Game machine |
| JP2000140285A (en) * | 1998-11-10 | 2000-05-23 | Toyomaru Industry Co Ltd | Game machine |
| JP2001238999A (en) * | 2000-03-01 | 2001-09-04 | Olympia:Kk | Game machine |
| JP2007089717A (en) * | 2005-09-27 | 2007-04-12 | Aruze Corp | Game machine |
| JP2009189872A (en) * | 2009-06-01 | 2009-08-27 | Toyomaru Industry Co Ltd | Game machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07110299B2 (en) | 1995-11-29 |
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