JPH0692912B2 - Dry noodle weighing machine with multi-stage supply - Google Patents
Dry noodle weighing machine with multi-stage supplyInfo
- Publication number
- JPH0692912B2 JPH0692912B2 JP60234926A JP23492685A JPH0692912B2 JP H0692912 B2 JPH0692912 B2 JP H0692912B2 JP 60234926 A JP60234926 A JP 60234926A JP 23492685 A JP23492685 A JP 23492685A JP H0692912 B2 JPH0692912 B2 JP H0692912B2
- Authority
- JP
- Japan
- Prior art keywords
- supply
- weighing
- belt conveyor
- speed
- noodles
- 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.)
- Expired - Fee Related
Links
- 235000012149 noodles Nutrition 0.000 title claims description 59
- 238000005303 weighing Methods 0.000 title claims description 58
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 16
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、乾麺の多段階供給による計量機に関し、乾
麺に適した計量が行い得るとともに、正確な計量が可能
な多段階供給による乾麺の重量計量機を提供しようとす
るものである。Description: TECHNICAL FIELD The present invention relates to a multi-stage weighing machine for dry noodles, which is capable of performing weighing suitable for dry noodles and capable of accurate weighing. It is intended to provide a weighing machine.
乾麺を計量包装する場合、体積計量機で計量できれば高
速計量が可能となって好都合である。しかしながら粒状
物と違い、乾麺では麺線が曲がっていることから容積量
が一定してなくて、正確な重量を計量することはできな
い。それゆえ従来、乾麺等の計量が、体積計量機のみに
よって行われることはなかった。In the case of measuring and packaging dry noodles, if it can be measured with a volume measuring machine, high speed measurement is possible, which is convenient. However, unlike the granular material, in the dried noodles, the volume of the noodles is not constant because the noodles are bent, and the weight cannot be accurately measured. Therefore, conventionally, dry noodles and the like have not been weighed by only a volume measuring machine.
従来の計量手段としては例えば、 体積計量（大量）＋重量計量（微量）の組合わせ、 複数の体積計量に組合わせ計量を使ったもの、 重量計量（大量）＋重量計量（微量）の組合わせ、 が使用されている。Conventional weighing means include, for example, a combination of volume measurement (large amount) + weight measurement (trace amount), a combination measurement for multiple volume measurements, a combination of weight measurement (large amount) + weight measurement (trace amount) , Are used.
このように従来は、体積計量機等で大まかな計量を行な
い、次に重量計量用のホッパーにそれを投入し、微量供
給によって精度良く計量を行なう方法が用いられてい
る。As described above, conventionally, there has been used a method of roughly measuring with a volume measuring machine or the like, then charging the hopper into a hopper for weight measurement, and performing accurate measurement by supplying a small amount.
このような従来例において用いられている、単位包装量
に応じた重量を計量する乾麺の重量計量機としては、一
般に振動フィーダーにより、乾麺を一定量づつ送り、計
量部でその重量を測定し、目標の重量になったところで
振動フィーダーを停止して、１回分の計量を終了するも
のがある。従来は速度と計量精度とを両立させるため、
第３図に示すように、振動フィーダーによる供給を大量
供給と微量供給の２段階に分け、大量供給できる振動フ
ィーダー11で乾麺15を供給して大まかに計量し、微量供
給できる振動フィーダー12で追加して精密に計量してい
る。13は計量部、14は開閉可能なホッパーである。Used in such a conventional example, as a weight measuring machine for dry noodles for measuring the weight according to the unit packaging amount, generally, by a vibrating feeder, the dry noodles are fed by a fixed amount, and the weight is measured by a weighing unit, In some cases, when the target weight is reached, the vibrating feeder is stopped and one weighing is completed. Conventionally, in order to make speed and weighing accuracy compatible,
As shown in FIG. 3, the supply by the vibration feeder is divided into two stages, a large amount supply and a minute amount supply, and the dry noodles 15 are supplied by the vibration feeder 11 capable of supplying a large amount and roughly weighed, and added by the vibration feeder 12 capable of supplying a small amount. And we measure it precisely. 13 is a weighing unit, and 14 is an openable / closable hopper.
しかしながらその際、乾麺の移送を高速化すると計量精
度が低下してしまう。すなわち、第４図に示すように、
大量供給できる振動フィーダー11で供給する時間l1はか
なりのスピードアップができる。ところが、微量供給で
きる振動フィーダー12における供給中は、スピードアッ
プすると計量精度が低下してしまうため、少量を一定の
時間l2内に供給する必要があった。そのため計量時間が
なかなか短縮できなかった。しかも所定の時間供給した
後に供給を停止したときには、微量供給の場合において
も停止後にホッパ内に落下する分があり、その供給量が
誤差となってしまうという欠点があった。However, in that case, if the transfer speed of the dried noodles is increased, the measurement accuracy will be deteriorated. That is, as shown in FIG.
The time l 1 supplied by the vibrating feeder 11 which can supply a large amount can speed up considerably. However, during the supply in the vibrating feeder 12 which can supply a small amount, the speeding up reduces the measurement accuracy, so it was necessary to supply a small amount within a certain time l 2 . Therefore, the weighing time could not be shortened easily. In addition, when the supply is stopped after the supply for a predetermined time, even in the case of a small amount of supply, there is a portion to drop into the hopper after the stop, and there is a drawback that the supply amount becomes an error.
また、乾麺の場合には異なる太さや嵩からなる麺の違い
に対応しなければならないが、単に大量供給から微量供
給への速度傾斜を備えたベルトコンベアを使用するだけ
では不十分で、上記ベルトコンベアに使用によって速度
面での改善は見られるけれども、逆に精度が低下してし
まう。Further, in the case of dry noodles, it is necessary to cope with the difference in noodles having different thicknesses and bulks, but it is not enough to simply use a belt conveyor having a speed gradient from a large amount supply to a minute amount supply, and the above belt Although the improvement in speed can be seen by using it for the conveyor, the accuracy is decreased on the contrary.
この発明は、乾麺の供給パターンに応じてベルトコンベ
アの速度を制御することにより、乾麺を精度よく迅速に
計量することができる上、乾麺の異なる太さや嵩からな
る種類の変更にも、精度を下げることなく迅速に対応す
ることができる多段階供給による乾麺の重量計量機を提
供しようとするものである。The present invention, by controlling the speed of the belt conveyor according to the supply pattern of dry noodles, it is possible to quickly and accurately measure the dry noodles, even when changing the type of dry noodles having different thicknesses and bulks, the accuracy is improved. An object of the present invention is to provide a weight measuring machine for dry noodles by multi-stage supply, which can promptly respond without lowering.
この発明の多段階供給による乾麺の重量計量機は、本発
明の一実施例を説明する第１図に示すように、制御装置
により乾麺（１）を大量供給から微量供給への速度傾斜
を有して所定量搬送するベルトコンベア（２）と、ベル
トコンベア（２）の端部に近接して設けられ、かつ下面
を開放して乾麺（１）を排出可能なホッパ（３）と、ホ
ッパ（３）に付設して乾麺（１）の重量を計量する計量
部（４）とを有し、上記ベルトコンベア（２）を可変速
モータ（５）によって速度制御することにより、制御装
置に付設した記憶装置に入力され、かつ大量供給と微量
供給の比を10:1以上とした、複数の供給パターンから選
ばれた乾麺（１）の供給パターンに応じて無段ないし多
段変速しながら、当初は大量供給し、徐々に減速して微
量供給後、ベルトコンベア（２）を停止することを特徴
とするものである。As shown in FIG. 1 for explaining an embodiment of the present invention, the multi-stage feed dry weigher for dry noodles according to the present invention has a speed gradient from a large amount supply to a small amount supply of dry noodles (1) by a control device. A belt conveyor (2) for conveying a predetermined amount, a hopper (3) provided near the end of the belt conveyor (2) and capable of discharging the dried noodles (1) by opening the lower surface, and a hopper ( 3) attached to the control device, which has a weighing section (4) for weighing the dry noodles (1) and the belt conveyor (2) is speed-controlled by a variable speed motor (5). Initially, while continuously variable or multi-stage shifting according to the supply pattern of the dried noodles (1) selected from a plurality of supply patterns that are input to the storage device and the ratio of large-scale supply to minute supply is 10: 1 or more, Supply a large amount, gradually reduce the speed and supply a small amount, then It is characterized by stopping the intermediary (2).
以下、この発明の多段階供給による乾麺の重量計量機の
一実施例を図面に基づいて説明する。An embodiment of a dry noodle weighing machine according to the present invention will be described below with reference to the drawings.
第１図において２は、乾麺１を搬送するベルトコンベア
で、その前段階に設置した振動フィーダー（図示せず）
等によって乾麺１の定量供給を受け、乾麺１を一定の高
さに保持して、その高さのまま移送できる構造になって
いる。In FIG. 1, 2 is a belt conveyor for conveying the dried noodles 1, and a vibrating feeder (not shown) installed in the preceding stage.
The dry noodles 1 are supplied in a fixed amount by such as the above, and the dry noodles 1 can be held at a constant height and transferred at that height.
このベルトコンベア２の端部に近接して、上記搬送中の
乾麺１を投入収受する計量ホッパ３が設置されている。
この計量ホッパ３は一対の傾斜板７、８で構成され、傾
斜板７、８との間で断面Ｖ字形の空間を作って乾麺１を
ストックするものである。この計量ホッパ３は、ソレノ
イド10を駆動して開閉板７、８を旋回させることによ
り、下面を開放して乾麺１を排出可能である。そして上
記計量ホッパ３は、乾麺１の重量を計量する計量部４に
付設されている。A weighing hopper 3 for loading and receiving the dried noodles 1 being conveyed is installed near the end of the belt conveyor 2.
The weighing hopper 3 is composed of a pair of inclined plates 7 and 8, and a space having a V-shaped cross section is formed between the inclined plates 7 and 8 to stock the dried noodles 1. The weighing hopper 3 can discharge the dried noodles 1 by opening the lower surface by driving the solenoid 10 to rotate the opening / closing plates 7 and 8. The weighing hopper 3 is attached to the weighing unit 4 that weighs the dry noodles 1.
上記ベルトコンベア２は、加変速サーボモータ５により
駆動され、制御装置からの速度指令により速度制御され
る。そのときの遅延時間は100msec以内で、速度比は10
0:1まで変化できる。制御装置はマイクロプロセッサを
使い、計量部４から入力される計量データに対応してそ
のときどきの最適のモータ速度が決定される。そしてこ
の値は、予め複数のパターンからなる速度情報として制
御装置のメモリーに書込んである（表−１参照）。The belt conveyor 2 is driven by an acceleration / deceleration servomotor 5 and is speed-controlled by a speed command from a control device. The delay time at that time is within 100 msec, and the speed ratio is 10
It can be changed up to 0: 1. The control unit uses a microprocessor, and the optimum motor speed at that time is determined according to the weighing data input from the weighing unit 4. Then, this value is written in advance in the memory of the control device as speed information consisting of a plurality of patterns (see Table-1).
計量に際して、計量ホッパ３は空の状態であるため、ベ
ルトコンベア２は速い速度で移動し、乾麺１は短時間に
大量に計量ホッパ３内に投入される。やがて乾麺１が計
量ホッパ３内で増加してゆくに連れてベルトコンベア２
の速度は下がってゆき、目標値付近では微速度となって
精密に計量を行なう。そして、計量部４による計量で目
標重量を越えると可変速モータ５は停止し、次ぎに計量
ホッパ３が開いて１回の計量を終了する。 During weighing, since the weighing hopper 3 is empty, the belt conveyor 2 moves at a high speed, and a large amount of the dried noodles 1 are put into the weighing hopper 3 in a short time. As the dry noodles 1 increase in the weighing hopper 3, the belt conveyor 2
The speed of decreases, and near the target value it becomes a fine speed and precise measurement is performed. Then, when the target weight is exceeded by the weighing by the weighing unit 4, the variable speed motor 5 is stopped, the weighing hopper 3 is opened next, and one weighing is completed.
従来の計量機では上記第３図のように２段階の供給であ
る。このため上述のように微量供給の段階を速くすると
供給停止時の行きすぎのため、計量誤差を生ずる。また
同様な理由で、大量供給の段階でもあまり速くできず、
大量供給と微量供給との速さの比は、通常5:1である。In the conventional weighing machine, the two-stage supply is performed as shown in FIG. For this reason, if the minute amount supply step is accelerated as described above, a measurement error occurs due to an excessive amount when the supply is stopped. Also, for the same reason, it can not be so fast even in the mass supply stage,
The ratio of bulk feed to trace feed rates is typically 5: 1.
また、従来は振動フィーダーを使用しているためフィー
ダーの搬送速度自体も遅く、全体の供給量を速くするこ
とができない。そのため、100gの乾麺を計量するのに３
〜４秒の時間を要している。Further, since the conventional vibrating feeder is used, the feeding speed of the feeder is slow, and the total feeding amount cannot be increased. Therefore, it takes 3 to measure 100g of dried noodles.
It takes ~ 4 seconds.
しかしながら、この発明の多段階供給による計量機で
は、第４図に示すように、コンベアスピードは多段階で
曲線に近い状態で変化するため、約20:1以上の速度変化
比がとれる。したがって計量速度が速く、100gの乾麺を
計量するのに１〜2.5秒位である。上記表−１に示した
ような計量出力：コンベアモータ速度の値は、予め実験
により複数パターンの最適値を求めておき、この複数パ
ターンを速度情報として制御装置のメモリーに書込んで
おく。However, in the multi-stage feeding weighing machine according to the present invention, as shown in FIG. 4, the conveyor speed varies in a multi-stage state close to a curve, so that a speed change ratio of about 20: 1 or more can be obtained. Therefore, the weighing speed is fast, and it takes about 1 to 2.5 seconds to weigh 100 g of dried noodles. As for the metering output as shown in Table 1 above: the value of the conveyor motor speed, optimum values of a plurality of patterns are previously obtained by an experiment, and the plurality of patterns are written as speed information in the memory of the control device.
なお、乾麺１の種類が変わると速度情報（複数パターン
の最適値）も変えた方が良いため、いくつかの速度情報
を用意しておくことが望ましい。さらに計量中に乾麺１
が変化することもあるため、オーバー計量が出たときは
１ランク速度の遅いパターンの速度情報を用いる。ま
た、予定以上に計量が長引くときは、１ランク速度の速
いパターンの速度情報を用い、これを自動的にフィード
バックしている。Since it is better to change the speed information (optimum value of a plurality of patterns) when the type of the dried noodles 1 changes, it is desirable to prepare some speed information. Dry noodles 1 during weighing
May change, the speed information of a pattern with a slower one rank speed is used when an over-measurement occurs. Further, when the metric is longer than planned, the speed information of the pattern having a higher speed of one rank is used and this is automatically fed back.
次にこの発明の多段階供給による乾麺の重量計量機の動
動作について説明する。Next, the dynamic operation of the dry noodle weighing machine according to the present invention by multi-stage feeding will be described.
先ず、バラの乾麺１が、第１図に示すようにベルトコン
ベア２上に載置されている。このとき計量ホッパ３は傾
斜板７、８を閉じて乾麺１を貯留できるようになってい
る。First, a piece of dried noodles 1 is placed on a belt conveyor 2 as shown in FIG. At this time, the weighing hopper 3 can close the inclined plates 7 and 8 and store the dried noodles 1.
計量がスタートすると、計量ホッパ３が空の状態である
ため、ベルトコンベア２は速い速度で移動し、乾麺１は
短時間に大量に計量ホッパ３内に投入される。やがて乾
麺１が計量ホッパ３内で増加してゆくに連れて、第２図
に示すようにベルトコンベア２の速度は下がってゆき、
目標値付近では微速度となって精密に計量を行なう。そ
して、計量部４による計量で目標重量を越えると可変速
モータ５は停止し、次ぎに計量ホッパ３が開いて１回の
計量を終了する。When the weighing is started, since the weighing hopper 3 is empty, the belt conveyor 2 moves at a high speed, and a large amount of the dried noodles 1 are put into the weighing hopper 3 in a short time. As the dry noodles 1 increase in the weighing hopper 3, the speed of the belt conveyor 2 decreases as shown in FIG.
Around the target value, the speed becomes fine and precise measurement is performed. Then, when the target weight is exceeded by the weighing by the weighing unit 4, the variable speed motor 5 is stopped, the weighing hopper 3 is opened next, and one weighing is completed.
この発明の多段階供給による計量機は以上のように構成
したから、従来の方式より乾麺の計量工程を大幅にスピ
ードアップすることができる。Since the weighing machine with multi-stage feeding according to the present invention is configured as described above, it is possible to significantly speed up the weighing process of dry noodles as compared with the conventional method.
すなわち、従来は振動フィーダーを使用しているため振
動フィーダーの搬送速度自体も遅く、100gの乾麺を計量
するのに３〜４秒の時間を要しているのに対し、この発
明の多段階供給による計量機では、100gの乾麺を計量す
るのに１〜2.5秒位しか要しない。したがって、連続的
な乾麺の計量工程における時間短縮は非常に大幅なもの
となる。That is, since the conventional vibrating feeder is used, the conveying speed of the vibrating feeder is slow, and it takes 3 to 4 seconds to weigh 100 g of dried noodles. With the weighing machine according to, it takes only about 1 to 2.5 seconds to weigh 100 g of dried noodles. Therefore, the time reduction in the continuous dry noodle measuring process is very significant.
また、ベルトコンベア２は大量供給時は速い速度で移動
するため、乾麺１は短時間に大量に計量ホッパ３内に投
入される。さらに、乾麺１が計量ホッパ３内で増加して
ゆくに連れてベルトコンベア２の速度は下がってゆき、
目標値付近では微速度となって精密に計量を行なう。そ
れゆえベルトコンベアを使用していることと相まって、
より計量精度を向上させることができる。Further, since the belt conveyor 2 moves at a high speed when a large amount is supplied, a large amount of the dried noodles 1 is put into the weighing hopper 3 in a short time. Furthermore, as the dry noodles 1 increase in the weighing hopper 3, the speed of the belt conveyor 2 decreases,
Around the target value, the speed becomes fine and precise measurement is performed. Therefore coupled with the use of belt conveyors,
The weighing accuracy can be further improved.
さらに乾麺の供給パターンに応じてベルトコンベア２の
速度を制御するようにしたので、乾麺を精度よく迅速に
計量することができる上、乾麺の異なる太さや嵩からな
る種類の変更にも、複数の供給パターンを用意しておく
ことにより精度を下げることなく迅速に対応することが
できる。Further, since the speed of the belt conveyor 2 is controlled according to the supply pattern of the dry noodles, the dry noodles can be accurately and quickly weighed, and a plurality of dry noodles having different thickness or bulk can be changed. By preparing the supply pattern, it is possible to quickly respond without lowering the accuracy.
図面はこの発明の多段階供給による計量機の実施例を示
し、第１図はその断面図、第２図は計量に応じた乾麺１
の供給パターンを示すグラフ、第３図は従来の計量機の
一例を示す断面図、第４図はそのときの計量に応じた乾
麺１の供給パターンを示すグラフである。 １……乾麺 ２……ベルトコンベア ３……計量ホッパ ４……計量部 ５……可変速モータThe drawings show an embodiment of a weighing machine according to the present invention by multi-stage feeding. FIG. 1 is a sectional view thereof, and FIG. 2 is a dried noodle 1 according to weighing.
FIG. 3 is a cross-sectional view showing an example of a conventional weighing machine, and FIG. 4 is a graph showing a supply pattern of dried noodles 1 according to the weighing at that time. 1 …… Dried noodles 2 …… Belt conveyor 3 …… Weighing hopper 4 …… Weighing unit 5 …… Variable speed motor
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−105021（ＪＰ，Ａ) 実開 昭57−32822（ＪＰ，Ｕ) 実開 昭57−171540（ＪＰ，Ｕ) 特公 昭48−42988（ＪＰ，Ｂ１) 特公 昭52−3591（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-105021 (JP, A) Actually opened 57-32822 (JP, U) Actually opened 57-171540 (JP, U) JP-B 48- 42988 (JP, B1) JP-B-52-3591 (JP, B2)
Claims (1)
微量供給への速度傾斜を有して所定量搬送するベルトコ
ンベア（２）と、ベルトコンベア（２）の端部に近接し
て設けられ、かつ下面を開放して乾麺（１）を排出可能
なホッパ（３）と、ホッパ（３）に付設して乾麺（１）
の重量を計量する計量部（４）とを有し、上記ベルトコ
ンベア（２）を可変速モータ（５）によって速度制御す
ることにより、制御装置に付設した記憶装置に入力さ
れ、かつ大量供給と微量供給の比を10:1以上とした、複
数の供給パターンから選ばれた乾麺（１）の供給パター
ンに応じて無段ないし多段変速しながら、当初は大量供
給し、徐々に減速して微量供給後、ベルトコンベア
（２）を停止することを特徴とする多段階供給による乾
麺の重量計量機。1. A belt conveyor (2) for transporting a predetermined amount of dry noodles (1) with a speed gradient from a large amount supply to a minute amount supply by a control device, and is provided close to the end of the belt conveyor (2). A hopper (3) which is open to the bottom surface and is capable of discharging the dry noodles (1), and a dry noodle (1) attached to the hopper (3)
And a weighing section (4) for weighing the weight of the belt conveyor (2), and the speed of the belt conveyor (2) is controlled by a variable speed motor (5) so that the belt conveyor (2) is input to a storage device attached to the controller and supplied in large quantities. With a ratio of a minute amount of supply of 10: 1 or more, infinitely or multi-stage shifting according to the supply pattern of dry noodles (1) selected from a plurality of supply patterns, initially supplying a large amount, gradually decelerating to a minute amount After the supply, the belt conveyor (2) is stopped, and a multi-stage supply dry noodle weighing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60234926A JPH0692912B2 (en) | 1985-10-21 | 1985-10-21 | Dry noodle weighing machine with multi-stage supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60234926A JPH0692912B2 (en) | 1985-10-21 | 1985-10-21 | Dry noodle weighing machine with multi-stage supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6293619A JPS6293619A (en) | 1987-04-30 |
| JPH0692912B2 true JPH0692912B2 (en) | 1994-11-16 |
Family
ID=16978442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60234926A Expired - Fee Related JPH0692912B2 (en) | 1985-10-21 | 1985-10-21 | Dry noodle weighing machine with multi-stage supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0692912B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340530U (en) * | 1989-08-31 | 1991-04-18 | ||
| CN115342891A (en) * | 2022-08-17 | 2022-11-15 | 青岛海科佳智能科技股份有限公司 | Method for improving weighing precision of strip-shaped materials |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2247254A1 (en) * | 1971-09-30 | 1973-04-05 | British Leyland Truck & Bus | CATALYST CARRIER |
| JPS5748426U (en) * | 1980-09-02 | 1982-03-18 |
-
1985
- 1985-10-21 JP JP60234926A patent/JPH0692912B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6293619A (en) | 1987-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |