JPH06278920A - Automatic detection controller for coil edge hanging-down - Google Patents
Automatic detection controller for coil edge hanging-downInfo
- Publication number
- JPH06278920A JPH06278920A JP5093602A JP9360293A JPH06278920A JP H06278920 A JPH06278920 A JP H06278920A JP 5093602 A JP5093602 A JP 5093602A JP 9360293 A JP9360293 A JP 9360293A JP H06278920 A JPH06278920 A JP H06278920A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- fixed skid
- skid
- detector
- fixed
- 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.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000011022 operating instruction Methods 0.000 abstract 1
- 230000005856 abnormality Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007665 sagging Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Handcart (AREA)
- Replacement Of Web Rolls (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コイル搬送台車と固定
スキッド上に置かれたコイルの端の垂れ下り部との予期
しない衝突事故を回避するためのコイル端垂れ下りの自
動検出制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil end drooping automatic detection control device for avoiding an unexpected collision accident between a coil carrier and a coil end drooping portion placed on a fixed skid. .
【０００２】[0002]
【従来の技術】製鉄所等において、工場，コイル置場，
積出場等に設けたコイル支持用の固定スキッドと、この
固定スキッドの下を走行し固定スキッド上のコイルを取
上げ他の場所の固定スキッド上へ搬送する軌道走行型の
コイル搬送台車とが使用されている。固定スキッド上に
コイルが置かれるとき、コイルの端が下側にスキッドの
中央すき間部に位置するように置かれた場合に、そのコ
イルの端がスキッドのすき間部へ垂れ下りを生じること
がある。この状態でコイル搬送台車がコイルを受取りに
固定スキッドの下へ入ると、コイル搬送台車上のコイル
受部や他の部分がコイル端垂れ下り部に板の幅方向から
衝突してコイルの取上げができず、また衝突によってコ
イルと台車の両方に損傷を生じる。このような固定スキ
ッド上でのコイル端の垂れ下りは１月に何件かずつ発生
し、従来は作業者が目視による監視して台車との衝突を
回避しているが、確実な衝突の回避は難しく、またこれ
がコイル搬送台車の運転の自動化の妨げとなっている。2. Description of the Related Art In steelworks, factories, coil storage areas,
A fixed skid for coil support installed at the loading and unloading place, and an orbital traveling type coil transfer carriage that travels under the fixed skid and picks up the coil on the fixed skid and transfers it to the fixed skid at another place are used. ing. When a coil is placed on a fixed skid, the end of the coil may droop into the skid gap if it is placed so that the end of the coil is located in the middle of the skid downwards. . In this state, when the coil carrier enters the fixed skid to receive the coil, the coil receiver and other parts on the coil carrier collide with the coil end sagging part from the width direction of the plate, and the coil is not picked up. No, and the collision causes damage to both the coil and the carriage. Such a coil end drooping on a fixed skid occurs several times in January, and in the past, operators visually monitored and avoided collision with the trolley, but reliable collision avoidance. Is difficult, and this hinders automation of the operation of the coil carrier.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、このような
事情に鑑みて提案されたもので、固定スキッド上のコイ
ル端垂れ下りの異常検出と制御装置への伝達が早期に行
え、コイル搬送台車とコイル端垂れ下り部との衝突の回
避をより確実にし、コイル搬送台車の無駄な走行を減少
しコイル搬送運転の効率を高めることができるコイル端
垂れ下りの自動検出制御装置を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and it is possible to detect abnormal coil end sagging on a fixed skid and transmit it to a control device at an early stage. To provide an automatic coil end drooping detection control device capable of more reliably avoiding a collision between a dolly and a coil end drooping portion, reducing wasteful traveling of a coil transport trolley, and improving efficiency of a coil transport operation. With the goal.
【０００４】[0004]
【課題を解決するための手段】そのために本発明は、コ
イル受け固定スキッド上の両側部に同固定スキッド内を
通るコイル搬送台車の昇降スキッド上端より僅かに上の
高さ位置をコイル搬送台車の走行方向と直交する水平方
向へ透過するように設けられた透過型コイル端垂れ下り
検出器の発信部及び受信部と、上記固定スキッド外に設
けられ上記検出器によるコイル端垂れ下り検出信号によ
り同固定スキッドの異常をアラームし同固定スキッドを
進入先として指定されたコイル搬送台車を最寄り位置で
緊急自動停止し運転指示待ち状態にする制御装置とを具
えたことを特徴とする。To this end, the present invention provides a coil carrier trolley having a height position slightly above the upper end of a lifting skid of a coil carrier trolley on both sides of the coil receiver carrier skid. The transmitting and receiving parts of the transmission type coil end sag detector provided so as to be transmitted in the horizontal direction orthogonal to the traveling direction, and the transmitter end and the receiver part which are provided outside the fixed skid and are the same by the coil end sag detection signal by the detector. The present invention is characterized by comprising a controller for alarming an abnormality of the fixed skid and for making an emergency stop of the designated coil transfer vehicle with the fixed skid as an entry destination at the nearest position to wait for a driving instruction.
【０００５】[0005]
【作用】本発明コイル端垂れ下りの自動検出制御装置に
おいては、固定スキッド上に置かれたコイルの端が垂れ
下り、固定スキッド上の検出器発信部から受信部への光
波その他の信号ラインを遮ったとき、受信部から制御装
置へコイル端垂れ下り検出信号として例えばＯＮ信号が
伝達される。制御装置は検出器受信部から受入れる信号
を判別部で識別し、コイル端垂れ下りなしの時は自動又
は手動運転の継続制御部を介しコイル搬送台車の運転を
継続させ、コイル端垂れ下りが検出された時は緊急停止
制御部を介し該当固定スキッドの異常がアラームされ、
かつ該当する固定スキッドを行先に指定されたコイル搬
送台車を最寄り位置で自動停止させ、運転指示待ち状態
に保持させる制御を行う。当該固定スキッドの異常はア
ラームを通じ保守部門などの関係部所へ伝わり、コイル
の置換え等の緊急停止原因の排除が行われ、コイル搬送
台車へ運転再開継続又は指定先変更等の運転指示が行わ
れる。In the coil edge drooping automatic detection control device of the present invention, the end of the coil placed on the fixed skid droops, and a light wave or other signal line from the detector transmitter to the receiver on the fixed skid is connected. When blocked, an ON signal, for example, is transmitted from the receiving unit to the control device as a coil end sag detection signal. The controller identifies the signal received from the detector receiving section by the discrimination section, and when there is no coil end sag, the operation of the coil carrier is continued through the automatic or manual operation continuation control section, and the coil end sag is detected. When the fixed skid is abnormally alarmed via the emergency stop control unit,
At the same time, a control is performed to automatically stop the coil carrier truck designated as the destination of the corresponding fixed skid at the nearest position and hold it in the operation instruction waiting state. Abnormality of the fixed skid is transmitted to relevant departments such as maintenance department through an alarm, causes of emergency stop such as coil replacement are eliminated, and operation instructions such as continuation of operation restart or change of designated destination are given to the coil carrier. .
【０００６】[0006]
【実施例】本発明コイル端垂れ下りの自動検出制御装置
の一実施例を図面について説明すると、図１は本自動検
出制御装置を有する固定スキッドの側面図、図２は同上
の平面図、図３は他の実施形の固定スキッドの平面図、
図４は更に他の実施形の固定スキッドの平面図、図５は
制御装置の構成を示すブロック図、図６は本自動検出制
御装置の運転作動のフロー図である。1 is a side view of a fixed skid having the automatic detection control device according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a plan view of a fixed skid of another embodiment,
FIG. 4 is a plan view of a fixed skid of still another embodiment, FIG. 5 is a block diagram showing the configuration of the control device, and FIG. 6 is a flow chart of the operation of the automatic detection control device.
【０００７】図１，図２において、１はコイル２を支持
するための固定スキッド、３は固定スキッド１の中央部
間隙、４は固定スキッド１の下を軌道走行するコイル搬
送台車、５はコイル搬送台車４上の昇降スキッドであ
る。６ａ，６ｂは固定スキッド１上の両側部に設けた透
過型コイル端垂れ下り検出器の１対の検出器発信部と検
出器受信部、７は上記発信部６ａと受信部６ｂ間に光波
などを通過可能な計測空間を形成するよう固定スキッド
１の端壁に設けた通し孔、２ａは固定スキッド１の中央
部間隙３内に垂れ下ったコイル端垂れ下り部である。検
出器発信部６ａと検出器受信部６ｂ及び通し孔７は、コ
イル搬送台車４の昇降スキッド５の降下時の上端より若
干高い位置を水平方向に固定スキッド１の中央部間隙３
を横切って光波信号８が通過するように設ける。In FIGS. 1 and 2, 1 is a fixed skid for supporting the coil 2, 3 is a central gap of the fixed skid, 4 is a coil carrier truck that orbits under the fixed skid 1, and 5 is a coil. It is an up-and-down skid on the transport carriage 4. Reference numerals 6a and 6b are a pair of detector transmitters and detector receivers of a transmission type coil end dangle detector provided on both sides of the fixed skid 1, and 7 is a light wave between the transmitters 6a and 6b. Through holes 2a provided in the end wall of the fixed skid 1 so as to form a measurement space through which the coil end can pass. The detector transmitting portion 6a, the detector receiving portion 6b, and the through hole 7 are horizontally fixed at a position slightly higher than the upper end of the lifting skid 5 of the coil carrier 4 when it is lowered.
It is provided so that the lightwave signal 8 may pass through.
【０００８】図３は上記検出器発信部６ａ，検出器受信
部６ｂを固定スキッド１の前後端寄り２ケ所に横断方向
へ配置して設けた場合を示し、また図４は固定スキッド
１の中央部と前端面，後端面の３ケ所に配置して設けた
場合である。コイル２は板厚さや熱延されたコイル，冷
延されたコイル等の種類によって、コイル端が幅方向に
直角に切断されたもの，又はコイル端が切断されないで
コイル端の中央部が延びているもの，幅方向の両側が長
く延びているものなど多様である。また固定スキッド１
上にコイル端が下面に位置する状態で最初に置かれた場
合にも例えば切り揃えられたコイル端は搬送時の衝撃な
どで幅方向の片側だけがめくれて垂れ下るような場合も
ある。従って図２で示す場合は、中央部のコイル端垂れ
下りの多いコイル群に対して有効であり、図３，図４の
場合は、端部の切断されない不揃いなコイル又は幅方向
の片側がめくれ易い薄板コイルなどに適した検出器の配
置である。FIG. 3 shows a case in which the detector transmitting portion 6a and the detector receiving portion 6b are arranged at two positions near the front and rear ends of the fixed skid 1 in the transverse direction, and FIG. 4 is the center of the fixed skid 1. This is the case where they are arranged and provided in three places, the front end face and the rear end face. Depending on the type of plate thickness, hot rolled coil, cold rolled coil, etc., the coil 2 may have a coil end cut at right angles to the width direction, or the coil end may not be cut and the central part of the coil end may extend. There are various types, such as those with long edges on both sides in the width direction. Fixed skid 1
Even when the coil end is first placed in a state where the coil end is positioned on the lower face, the cut and aligned coil end may be hung down and drooping only on one side in the width direction due to an impact during transportation. Therefore, in the case shown in FIG. 2, it is effective for a coil group in which the coil ends in the central portion are often drooping, and in the cases of FIGS. This is an arrangement of detectors suitable for easy thin plate coils.
【０００９】次に図５は制御装置の構成を示すブロック
図であり、制御装置１０は、検出器受信部６ｂから入力
される信号から発信元スキッドNoを読取る読取部１１
と、読取ったスキッドNoを受取先に指定された台車Noを
読取る読取部１２と、入力信号がコイル端垂れ下り有り
か否かを判断する判定部１３と、同判定部１３のコイル
端垂れ下りなし又は有りの判定信号に応じて該当台車４
を継続運転させる制御部１４と、アラームと該当台車４
を緊急自動停止させる制御部１５とからなっている。こ
の制御装置１０は複数のコイル搬送台車の運行を管理す
る集中制御室内に設けられる。Next, FIG. 5 is a block diagram showing the configuration of the control device. The control device 10 reads the sender skid No. from the signal input from the detector receiver 6b.
And a reading unit 12 that reads the trolley number specified by the recipient as the read skid number, a determination unit 13 that determines whether or not the input signal has a coil end sag, and a coil end sag of the determination unit 13. Corresponding truck 4 according to the judgment signal of presence or absence
Control unit 14 that keeps the vehicle running continuously, an alarm and the truck 4
And a control unit 15 for emergency automatic stop. The control device 10 is provided in a central control room that manages the operation of a plurality of coil carrier vehicles.
【００１０】このようなコイル端垂れ下りの自動検出制
御装置の運転作動を図６を参照して説明する。各固定ス
キッド１上の検出器発信部６ａ，検出器受信部６ｂは、
コイル搬送台車４全体の運転開始と共に検出を開始し、
検出した信号を固定スキッド１のNo（又は固有コード）
と共に制御装置１０へ伝える。制御装置１０では入力さ
れた信号から発信した固定スキッドNoを読取部１１で読
取り、次いで読取部１２で信号入力した固定スキッド１
を受取先として指定された搬送台車Noを読取り、入力信
号がコイル端垂れ下り有りか否かを判定部１３が判定
し、コイル端垂れ下りが検出されない時は継続運転制御
部１４を通しコイル搬送台車４を継続運転し、またコイ
ル端垂れ下りが検出された時は他の制御部１５を通じ異
常固定スキッドNoのアラームを発し、かつこの固定スキ
ッド１を対象とするコイル搬送台車４があればその台車
を緊急自動停止させる。停止位置は指定された固定スキ
ッド１の手前の位置又は現在位置に停止させるなど適宜
に定められる。アラームされた固定スキッド１ではコイ
ル２の向きを変えて置き換える等の操作でコイル端の垂
れ下りを解消し、運転指示待ち状態にされたコイル搬送
台車４には受取先スキッドNoを変更して早目に運転変更
の指示を与えることができる。The operation of the automatic detection control device for such coil end drooping will be described with reference to FIG. The detector transmitter 6a and the detector receiver 6b on each fixed skid 1 are
The detection is started when the operation of the entire coil carrier 4 is started,
No. of fixed skid 1 (or unique code) for detected signal
Along with this, it is transmitted to the control device 10. In the control device 10, the fixed skid No transmitted from the input signal is read by the reading unit 11, and then the fixed skid 1 is input by the reading unit 12 as a signal.
The carrier truck No. designated as the receiver is read, the determination unit 13 determines whether or not the input signal has a coil end sag, and when the coil end sag is not detected, the continuous operation control unit 14 is used to convey the coil. When the trolley 4 is continuously operated, and when the coil end drooping is detected, an alarm of an abnormal fixed skid No is issued through another control unit 15, and if there is a coil transfer trolley 4 for this fixed skid 1, Emergency stop of the dolly. The stop position is appropriately determined such as stopping at a position before the designated fixed skid 1 or the current position. In the alarmed fixed skid 1, change the direction of the coil 2 to replace the coil 2 to eliminate the drooping of the coil end. Instructions for driving changes can be given to the eyes.
【００１１】かくしてこのような装置によると、固定ス
キッド１上に仮置き又は保管されるコイル２は、固定ス
キッド１上に設けた検出器発信部６ａ，検出器受信部６
ｂによってコイル端垂れ下り部２ａの有無が前もって検
出され、制御装置１０へ伝えられるから、その固定スキ
ッド１へ向かうコイル搬送台車４を充分距離の離れた位
置で早目に停止させられるので、コイル搬送台車４とコ
イル端垂れ下り部２ａとの衝突はより確実に回避され、
コイル搬送台車４の行先を早目に指定変更して無駄な走
行を減らし、コイル搬送台車４によるコイル運搬の効率
を高めることができる。なお上述した固定スキッド１と
コイル搬送台車４は、親子台車における親台車上の固定
スキッドと親台車上に出入りする子台車に対しても同様
に構成することが可能である。Thus, according to such a device, the coil 2 temporarily placed or stored on the fixed skid 1 has the detector transmitter 6a and the detector receiver 6 provided on the fixed skid 1.
Since the presence or absence of the coil end hanging portion 2a is detected in advance by b and is transmitted to the control device 10, the coil transport carriage 4 heading to the fixed skid 1 can be stopped early at a position far enough away. Collision between the carriage 4 and the coil end hanging portion 2a is more reliably avoided,
It is possible to change the destination of the coil transport carriage 4 early to reduce wasteful traveling, and improve the efficiency of coil transport by the coil transport carriage 4. The fixed skid 1 and the coil transfer carriage 4 described above can be similarly configured for the fixed skid on the parent carriage and the child carriage moving in and out of the parent carriage.
【００１２】[0012]
【発明の効果】要するに本発明によれば、コイル受け固
定スキッド上の両側部に同固定スキッド内を通るコイル
搬送台車の昇降スキッド上端より僅かに上の高さ位置を
コイル搬送台車の走行方向と直交する水平方向へ透過す
るように設けられた透過型コイル端垂れ下り検出器の発
信部及び受信部と、上記固定スキッド外に設けられ上記
検出器によるコイル端垂れ下り検出信号により同固定ス
キッドの異常をアラームし同固定スキッドを進入先とし
て指定されたコイル搬送台車を最寄り位置で緊急自動停
止し運転指示待ち状態にする制御装置とを具えたことに
より、固定スキッド上のコイル端垂れ下りの異常検出と
制御装置への伝達が早期に行え、コイル搬送台車とコイ
ル端垂れ下り部との衝突の回避をより確実にし、コイル
搬送台車の無駄な走行を減少しコイル搬送運転の効率を
高めることができるコイル端垂れ下りの自動検出制御装
置を得るから、本発明は産業上極めて有益なものであ
る。In summary, according to the present invention, the height position slightly above the upper end of the ascending / descending skid of the coil carrier, which passes through the fixed skid on both sides of the coil receiver fixed skid, is defined as the traveling direction of the coil carrier. The transmitting part and the receiving part of the transmission type coil end sag detector provided so as to transmit in the horizontal direction orthogonal to each other, and the coil end sag detection signal provided by the detector provided outside the fixed skid of the fixed skid Abnormality of the coil end drooping on the fixed skid due to having a control device that alarms the abnormality and stops the designated coil carrier with the fixed skid as the entry destination in an emergency automatic stop at the nearest position and waits for operation instructions. The detection and the transmission to the control device can be performed early, the collision between the coil carrier and the coil end hanging part can be more surely avoided, and the waste of the coil carrier can be prevented. From getting automatic detection control unit of the coil end sag that can increase the efficiency of the reduced coil transfer operation row, the present invention is extremely useful industrially.
【図１】本発明コイル端垂れ下りの自動検出制御装置の
一実施例を有する固定スキッドの側面図である。FIG. 1 is a side view of a fixed skid having an embodiment of a coil end drooping automatic detection control device of the present invention.
【図２】同上の平面図である。FIG. 2 is a plan view of the above.
【図３】図２に対応する他の実施形の固定スキッドの平
面図である。FIG. 3 is a plan view of another embodiment of a fixed skid corresponding to FIG.
【図４】図２に対応する更に他の実施形の固定スキッド
の平面図である。FIG. 4 is a plan view of a fixing skid of still another embodiment corresponding to FIG.
【図５】制御装置の構成を示すブロック図である。FIG. 5 is a block diagram showing a configuration of a control device.
【図６】本自動検出制御装置の運転作動のフロー図であ
る。FIG. 6 is a flow chart of the operation of the automatic detection control device.
１ 固定スキッド ２ コイル ２ａ コイル端垂れ下り部 ３ 固定スキッドの中央部間隙 ４ コイル搬送台車 ５ 昇降スキッド ６ａ 検出器発信部 ６ｂ 検出器受信部 ７ 通し孔 ８ 光波信号 10 制御装置 13 判定部 14 継続運転制御部 15 アラーム緊急停止制御部 1 Fixed skid 2 Coil 2a Coil end hanging part 3 Central gap of fixed skid 4 Coil carrier 5 Lifting skid 6a Detector transmitter 6b Detector receiver 7 Through hole 8 Lightwave signal 10 Controller 13 Judgment unit 14 Continuous operation Control unit 15 Alarm emergency stop control unit
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０５Ｄ 1/02 Ｙ 9323−3Ｈ // Ｂ６５Ｈ 63/00 Ｚ 7633−3Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location G05D 1/02 Y 9323-3H // B65H 63/00 Z 7633-3F
Claims (1)
固定スキッド内を通るコイル搬送台車の昇降スキッド上
端より僅かに上の高さ位置をコイル搬送台車の走行方向
と直交する水平方向へ透過するように設けられた透過型
コイル端垂れ下り検出器の発信部及び受信部と、上記固
定スキッド外に設けられ上記検出器によるコイル端垂れ
下り検出信号により同固定スキッドの異常をアラームし
同固定スキッドを進入先として指定されたコイル搬送台
車を最寄り位置で緊急自動停止し運転指示待ち状態にす
る制御装置とを具えたことを特徴とするコイル端垂れ下
りの自動検出制御装置。1. A coil receiver fixed skid is provided on both sides thereof with a height position slightly above the upper end of the lifting skid of a coil carrier passing through the fixed skid in a horizontal direction orthogonal to the traveling direction of the coil carrier. The transmission part and the receiving part of the transmission type coil drooping detector provided as described above, and the fixed skid alarmed by the coil end drooping detection signal provided outside the fixed skid to alarm the fixed skid. An automatic detection control device for coil end drooping, comprising: a control device that makes an emergency automatic stop at a nearest position of a coil carrier specified as the entry destination and puts it in a waiting state for a driving instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5093602A JPH06278920A (en) | 1993-03-29 | 1993-03-29 | Automatic detection controller for coil edge hanging-down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5093602A JPH06278920A (en) | 1993-03-29 | 1993-03-29 | Automatic detection controller for coil edge hanging-down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06278920A true JPH06278920A (en) | 1994-10-04 |
Family
ID=14086880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5093602A Withdrawn JPH06278920A (en) | 1993-03-29 | 1993-03-29 | Automatic detection controller for coil edge hanging-down |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06278920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996008875A1 (en) * | 1994-09-16 | 1996-03-21 | Cirrus Logic, Inc. | Multipurpose error correction calculation circuit |
-
1993
- 1993-03-29 JP JP5093602A patent/JPH06278920A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996008875A1 (en) * | 1994-09-16 | 1996-03-21 | Cirrus Logic, Inc. | Multipurpose error correction calculation circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000530 |