JPH045388A - Alarm for electric shutter - Google Patents
Alarm for electric shutterInfo
- Publication number
- JPH045388A JPH045388A JP10494090A JP10494090A JPH045388A JP H045388 A JPH045388 A JP H045388A JP 10494090 A JP10494090 A JP 10494090A JP 10494090 A JP10494090 A JP 10494090A JP H045388 A JPH045388 A JP H045388A
- Authority
- JP
- Japan
- Prior art keywords
- shutter curtain
- signal
- obstacle
- shutter
- obstacle detection
- 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
- 238000001514 detection method Methods 0.000 claims description 57
- 230000005856 abnormality Effects 0.000 claims description 35
- 230000002159 abnormal effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、住宅やビル等の開口部に建付けられる電動シ
ャッターの異常報知装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an abnormality alarm device for electric shutters installed in openings of houses, buildings, etc.
［従来技術及び発明が解決しようとする課題］一般に、
この種電動シャッターのなかには、シャッターカーテン
の下端部に障害物検知スイッチを設け、シャッターカー
テン下降時に障害物検知スイッチが障害物検知したとき
、その検知信号を送信部から送信し、これを躯体側に設
けた受信部で受信し、これに基づいてシャッターカーテ
ンの下降を緊急停止するようにしたものがある。[Prior art and problems to be solved by the invention] Generally,
This type of electric shutter is equipped with an obstacle detection switch at the lower end of the shutter curtain, and when the obstacle detection switch detects an obstacle when the shutter curtain is lowered, the detection signal is sent from the transmitter and sent to the frame. There is a device that receives the signal using a reception section provided therein, and then, based on this signal, stops the lowering of the shutter curtain in an emergency manner.
ところでこのものにおいて、障害物検知作動をしたよう
な異常時に、周囲にいる人にこれを報知する必要があり
、そこでブザー等の異常報知器を設けることが試みられ
ていたが、従来、この異常報知器は、シャッターカーテ
ン用翻動制御部や開閉押釦スイッチ等の躯体側に設けら
れる部材装置に取付けられているのがせいぜいであった
。By the way, in the event of an abnormality such as when the obstacle detection is activated, it is necessary to notify people nearby, and attempts have been made to install an abnormality alarm such as a buzzer. At most, the alarm device was attached to a component device provided on the frame, such as a shutter curtain swing control section or an open/close pushbutton switch.
この結果、障害物検知時に異常報知器が作動したとして
も、その報知は、実際に障害物に当ったシャッターカー
テン下端部からではなく、ここから離間した躯体側から
発せられることになる。ところでこの様な異常報知があ
った場合、人は異常報知を発せられているところに先ず
注意を向けるのが通常であり、そうすると障害物の存在
に気付くのが遅れるという問題がある。As a result, even if the abnormality alarm is activated when an obstacle is detected, the alarm will be emitted not from the lower end of the shutter curtain that actually hit the obstacle, but from the side of the frame separated from this. By the way, when such an abnormality notification is received, people normally first direct their attention to the area where the abnormality notification is being issued, and this poses a problem in that it is delayed in noticing the existence of the obstacle.
［課題を解決する手段］
本発明は、上記の如き実情に鑑み、これらの欠点を一掃
することができる電動シャッターの異常報知装置を提供
することを目的として創案されたものであって、建造物
の開口部を開閉する電動シャッターのシャッターカーテ
ン下端部に障害物検知スイッチを設け、該障害物検知ス
イッチによる検知信号を、シャッターカーテン下端部に
設けた送信部から躯体側に設けた受信部に送信してシャ
ッターカーテンの下降を停止するように構成してなる電
動シャッターにおいて、前記シャッターカーテン下端部
に異常報知器を設け、該異常報知器を、障害物検知スイ
ッチが検知作動したことで報知作動するよう障害物検知
スイッチに連繋したことを特徴とするものである。[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing an abnormality alarm device for electric shutters that can eliminate these drawbacks. An obstacle detection switch is provided at the lower end of the shutter curtain of the electric shutter that opens and closes the opening of the shutter, and a detection signal from the obstacle detection switch is sent from a transmitter provided at the lower end of the shutter curtain to a receiver provided on the frame. In the electric shutter configured to stop the lowering of the shutter curtain, an abnormality alarm is provided at the lower end of the shutter curtain, and the abnormality alarm is activated when an obstacle detection switch detects and operates. It is characterized by being connected to an obstacle detection switch.
さらに前記電動シャッターにおいて、前記送信部に異常
報知器を設け、該異常報知器を、障害物検知スイッチが
検知作動したことで作動するよう障害物検知スイッチに
連繋すると共に、シャッターカーテン最下端に、シャッ
ターカーテンが全閉状態に最下降したとき床面に接当す
る突当て部材を設けて、全閉状態で障害物検知スイッチ
が床面に接地するのを規制したことを特徴とするもので
もある。Furthermore, in the electric shutter, an abnormality alarm is provided in the transmission section, and the abnormality alarm is connected to an obstacle detection switch so as to be activated when the obstacle detection switch is detected and activated, and at the lowest end of the shutter curtain. The shutter curtain is also characterized by providing an abutting member that comes into contact with the floor when the shutter curtain is in the fully closed state and in its lowest position, thereby preventing the obstacle detection switch from coming into contact with the floor when the shutter curtain is in the fully closed state. .
そして本発明は、この構成によって、障害物検知スイッ
チが検知作動をした場合に、その近傍から異常報知を行
うようにして、該部位に対して周囲の人の注意を集める
ようにしたものである。According to the present invention, when the obstacle detection switch activates the detection operation, an abnormality is notified from the vicinity of the obstacle detection switch, thereby drawing the attention of people around the obstacle detection switch. .
［実施例］
次に、本発明の一実施例を図面に基づいて説明する。図
面において、１は幅広開口部に連設される多連の電動シ
ャッターのシャッターカーテンであって、各シャッター
カーテン１は、管理室等に配設される遠隔スイッチ２あ
るいは開口部近傍に設けられる押釦スイッチ３の操作に
伴う電動開閉器４の正逆輛動により、シャッターケース
５内に巻装される収納姿勢と、垂下して開口部を閉鎖す
る閉鎖姿勢とに変姿すべく上下昇降動するものであって
、これらの構成は何れも従来通りの構成となっている。[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, reference numeral 1 denotes a shutter curtain of multiple electric shutters installed in a wide opening, and each shutter curtain 1 is connected to a remote switch 2 installed in a management room or the like or a push button installed near the opening. As the electric switch 4 moves forward and backward in response to the operation of the switch 3, it moves up and down to change its appearance between a storage position in which it is wrapped in the shutter case 5 and a closed position in which it hangs down and closes the opening. These configurations are all conventional configurations.
６はシャッターカーテン１の最下端に配設される座板で
あって、座板６の底面略全域に亘って障害物検知スイッ
チ（例えばテープスイッチ）７が設けられている。更に
、座板６には異常検知制御装置８が設けられているが、
該異常検知制御装置８は、異常検知制御装置８に内装す
る電池（図示せず）の電圧低下異常を検知する電圧低下
検知器９と、該検知器９および上記障害物検知スイッチ
７からの検知信号が入力し、これに基づいて必要な制御
信号を出力する制御部１０と、該制御部１０からの障害
物検知および電圧低下検知の異常出力信号を受けて異常
信号の送信をする異常信号送信部１１と、異常出力信号
を受けて点灯する報知灯１２と、ブザー音等の報知音を
発する音報知器１３等の部材装置を用いて構成されてい
るが、実施例においては、制御部１０からの異常出力信
号が、障害物検知の場合と電圧低下検知の場合とで、例
えば第５図に示すようにパルス（例えば、パルスピッチ
やパルス形等）を変えて送信するようになっており、こ
れによって異常種別の識別をしている。Reference numeral 6 denotes a seat plate disposed at the lowest end of the shutter curtain 1, and an obstacle detection switch (for example, a tape switch) 7 is provided over substantially the entire bottom surface of the seat plate 6. Furthermore, the seat plate 6 is provided with an abnormality detection control device 8.
The abnormality detection control device 8 includes a voltage drop detector 9 that detects a voltage drop abnormality of a battery (not shown) installed in the abnormality detection control device 8, and detects a voltage drop from the detector 9 and the obstacle detection switch 7. A control unit 10 receives a signal and outputs a necessary control signal based on the input signal, and an abnormal signal transmitter receives an abnormal output signal for obstacle detection and voltage drop detection from the control unit 10 and transmits the abnormal signal. The control unit 11 is configured using component devices such as a notification light 12 that lights up in response to an abnormal output signal, and an audible alarm 13 that emits a notification sound such as a buzzer. The abnormal output signal from the sensor is transmitted with different pulses (e.g., pulse pitch, pulse shape, etc.), as shown in Figure 5, depending on whether an obstacle is detected or a voltage drop is detected. , This identifies the type of abnormality.
一方、シャッターケース５が設けられる躯体側には、前
記異常信号送信部１１からの異常信号を受信する異常信
号受信部１４と、該受信された異常信号が入力し、これ
に基づいた制御信号を出力する制御部１５が設けられて
いる。つまり制御部１５は、受信した異常信号が、障害
物検知信号であるのか電圧低下検知信号であるかの判別
をし、そして該判別された異常信号をそれぞれの出力ポ
ートから出力する信号判別部１５ａと、これら判別され
た異常信号が入力して、前記開閉器４の制御部１６に対
し緊急停止等の必要な制御指令を出力する制御信号出力
部１５ｂとから構成されるが。On the other hand, on the frame side where the shutter case 5 is provided, there is an abnormal signal receiving section 14 that receives the abnormal signal from the abnormal signal transmitting section 11, and the received abnormal signal is inputted, and a control signal based on the received abnormal signal is inputted. A control section 15 for output is provided. In other words, the control unit 15 determines whether the received abnormal signal is an obstacle detection signal or a voltage drop detection signal, and outputs the determined abnormal signal from each output port by the signal determining unit 15a. and a control signal output section 15b which receives these determined abnormal signals and outputs necessary control commands such as emergency stop to the control section 16 of the switch 4.
前記判別部１５ａからの出力信号に基づいて押釦スイッ
チ３等の躯体側適宜位置に設けられた異常報知灯１７．
１７ａの点灯をする一方、さらに制御信号出力部１５ｂ
から遠隔制御室に設けられた音報知器１８に作動指令が
出力される構成になっている。Based on the output signal from the discrimination section 15a, an abnormality warning light 17 is provided at an appropriate position on the body of the pushbutton switch 3, etc.
17a, while the control signal output section 15b is turned on.
The configuration is such that an activation command is output from the remote control room to an audible alarm 18 provided in the remote control room.
叙述の如く構成された本発明の実施例において、シャッ
ターカーテン１の下降作動時に障害物検知スイッチ７が
障害物検知した場合、この検知信号が異常信号送信部１
１から送信され、これを異常信号受信部１４が検知する
ことに基づいてシャッターカーテン１の緊急停止がなさ
れることになる。In the embodiment of the present invention configured as described above, when the obstacle detection switch 7 detects an obstacle during the lowering operation of the shutter curtain 1, this detection signal is sent to the abnormality signal transmitter 1.
1, and the abnormal signal receiving section 14 detects this, and the shutter curtain 1 is then brought to an emergency stop.
この様に、障害物検知あるいは電圧低下検知がなされる
ことに基づき緊急作動がなされるが、これと同時にシャ
ッターカーテンｌ最下端の座板６部位から報知音および
報知光が発せられることになり、従って周囲にいる人は
、その発生源に注意を引かれることになって、障害物の
存在を直感的に認識できることになり、もって直ちに障
害物除去等の対策を採り得て安全性が著しく向上する。In this way, an emergency operation is performed based on the detection of an obstacle or a voltage drop, but at the same time, a notification sound and a notification light are emitted from the seat plate 6 at the lowest end of the shutter curtain l. Therefore, people in the vicinity will be able to draw their attention to the source of the problem, and will be able to intuitively recognize the presence of an obstacle, allowing them to immediately take measures such as removing the obstacle, significantly improving safety. do.
しかもこのものは、一つの制御部１０から障害物検知信
号と電圧低下検知信号とを送信できる構成になっている
ので、それぞれ別個に制御部を設けるものに対して部品
点数を減少できる等の利点があって都合が良い。Moreover, since this device is configured to be able to transmit an obstacle detection signal and a voltage drop detection signal from one control section 10, it has advantages such as being able to reduce the number of parts compared to a device that has separate control sections for each. It's convenient.
また、本発明は前記実施例に限定されるものでなく、次
の第二実施例に示すようなシャッターカーテン１に用い
た場合にはさらにその効果が顕著になる。Further, the present invention is not limited to the above-mentioned embodiment, and the effect becomes even more remarkable when used in a shutter curtain 1 as shown in the following second embodiment.
つまり第二実施例のシャッターカーテン１は、座板６の
左右両端部に突当て部材１９が設けられていて、シャッ
ターカーテン１の最下降時、突当て部材１９が床面に接
当した状態で、障害物検知スイッチ７は床面に接当しな
いよう構成されている。従って障害物検知スイッチ７は
、全閉時に突当て部材１９がないもののように床面に接
当して障害物検知状態と同じ状態になることがなく、そ
こで障害物検知スイッチ７を、全閉時においても検知作
動可能状態にしておくことができる。そしてこのように
しておくと、全閉時、外部からシャッターカーテン１を
無理にこじ開けようとして。In other words, in the shutter curtain 1 of the second embodiment, the abutment members 19 are provided at both left and right ends of the seat plate 6, and when the shutter curtain 1 is lowered to its lowest point, the abutment members 19 are in contact with the floor surface. , the obstacle detection switch 7 is configured so as not to come into contact with the floor surface. Therefore, when the obstacle detection switch 7 is fully closed, the obstacle detection switch 7 does not come into contact with the floor and enter the same obstacle detection state as in the case where there is no abutment member 19. It is possible to keep the detection operation possible even at any time. If you do this, when the shutter curtain 1 is fully closed, you may try to forcefully open the shutter curtain 1 from the outside.
手や工具類を障害物検知スイッチ７の下側に押込んだと
き、これを障害物検知スイッチ７が検知し、これによっ
てシャッターカーテン１の下部にある異常検知制御部８
に設けた音報知器１３から報知音が発せられる。When you push your hand or tools under the obstacle detection switch 7, the obstacle detection switch 7 detects this, and the abnormality detection control section 8 located at the bottom of the shutter curtain 1 is activated.
A notification sound is emitted from the sound notification device 13 provided in the.
この報知音１３は、従来の押釦スイッチ３等の屋内側に
設けたものの如く、警報発信源が遠く、またシャッター
カーテン１の内側にサツシ窓が閉まっていた場合にある
ように、外部に報知音がわずかしか漏れることがないも
のとは異なり、手等を押込んだシャッターカーテンｌの
下側から殆ど直接的に聞こえるように発せられるため、
侵入者に対して心理的な圧迫を与えることになって、不
法侵入を諦めさせることができる許りでなく、屋外にい
る第三者に不法侵入者がいることを報知することになっ
て、防犯性の向上が図れる。また障害物検知スイッチ７
は常時作動可能状態に維持されるから、シャッターカー
テン１の上昇時においても障害物検知をし、子供の悪戯
等の防止にもなるという利点があって都合が良い。This notification sound 13 is generated when the alarm source is far away, such as a conventional push button switch 3 installed indoors, or when a sash window is closed inside the shutter curtain 1. Unlike those that leak only a small amount, it is emitted almost directly audible from the bottom of the shutter curtain l where the hand etc. is pushed.
Not only does it put psychological pressure on the intruder, making him give up on trespassing, but it also alerts a third party outside that there is an intruder. Crime prevention can be improved. Also, obstacle detection switch 7
Since the shutter curtain 1 is maintained in an operable state at all times, it is advantageous in that obstacles can be detected even when the shutter curtain 1 is raised, and it also prevents mischief by children.
尚、本発明においては、異常報知を、障害物検知と電圧
低下検知とで異なる報知をするようになっているので、
その判別が簡単で、直ちに発生した異常に対処できると
いう利点があって都合が良い。In addition, in the present invention, different abnormality notifications are given for obstacle detection and voltage drop detection, so
This method is advantageous because it is easy to distinguish and it is possible to immediately deal with abnormalities that occur.
［作用効果コ
以上要するに、本発明は叙述の如く構成されたものであ
るから、障害物検知等の異常検知がなされた場合、シャ
ッターカーテン最下端部位から報知作動がなされること
になり、従って周囲にいる人は、その発生源に注意を引
かれることになって、障害物の存在を直感的に認識でき
ることになり、もって直ちに障害物除去等の必要な対策
を迅速に採り得て安全性が著しく向上する。[Operations and Effects] In summary, since the present invention is constructed as described above, when an abnormality such as an obstacle is detected, an alarm is activated from the lowest end of the shutter curtain, and therefore the surroundings are The person in the room will be able to intuitively recognize the presence of an obstacle by drawing their attention to the source of the problem, and will be able to quickly take necessary measures such as removing the obstacle, thereby improving safety. Significantly improved.
しかもこのものに、さらにシャッターカーテン最下端に
、シャッターカーテンが全閉状態に最下降したとき床面
に接当する突当て部材を設けて、全閉状態で障害物検知
スイッチが床面に接地するのを規制した場合には、障害
物検知スイッチを全閉状態でも検知作動可能状態に維持
できることになり、従ってこの様にしておけば、全閉時
、シャッターカーテンをこじ開けようとしてシャッター
カーテン下端に手を押込んだとき、これを障害物検知ス
イッチが検知し、そして報知作動がシャッターカーテン
の下端部においてなされることになって、報知器を押釦
スイッチ等の屋内側に設けたものの如く、発信源が遠く
、またシャッターカーテンの内側にサツシ窓が閉まって
いた場合にあるように、外部に報知音がわずかしか漏れ
ることがないものとは異なり、手等を押込んだシャッタ
ーカーテンの下側において殆ど直接的に作動することに
なって侵入者に対して心理的な圧迫を与えることになっ
て、不法侵入を諦めさせることができる許りでなく、屋
外にいる第三者に不法侵入者がいることを報知すること
ができ、防犯性の向上が図れる。Moreover, in addition to this, an abutting member is provided at the bottom end of the shutter curtain that comes into contact with the floor when the shutter curtain is fully lowered to the fully closed state, so that the obstacle detection switch is grounded to the floor when the shutter curtain is fully closed. If this is regulated, it will be possible to maintain the obstacle detection switch in a state where it can be detected even when it is fully closed. Therefore, if you do this, when the shutter curtain is fully closed, if you try to pry it open, your hand will not touch the bottom edge of the shutter curtain. When the button is pushed in, the obstacle detection switch detects this and the alarm is activated at the bottom of the shutter curtain. Unlike the case where the alarm sound is far away and the window is closed inside the shutter curtain, only a small amount of the alarm sound leaks to the outside. It is not acceptable to act directly and put psychological pressure on the trespasser, making him give up on trespassing, but there is a third party outside who is trespassing. It is possible to notify the user of the incident, thereby improving crime prevention.
図面は、本発明に係る電動シャッターの異常報知装置の
実施例を示したものであって、第１図はシャッターカー
テンの全体概略図、第２図は第２実施例を示す座板部の
正面図、第３図Ａは異常検知制御装置の斜視図、第３図
Ｂは異常信号受信部及び制御部側の作用説明斜視図、第
４図は送信側の制御回路図、第５図は受信側の制御回路
図、第６図は障害物検知信号と異常検知信号のパルスの
差異を示す作用説明図である。
図中、１はシャッターカーテン、は障害物検知スイッチ
、８は異常検知制御装置、１１は異常信号送信部、１３
は音報知器、１４は異常信号受信部、１５は制御部であ
る。
第３図
第４図
第５
電圧低下検知信号The drawings show an embodiment of the abnormality alarm device for an electric shutter according to the present invention, in which Fig. 1 is a general schematic diagram of the shutter curtain, and Fig. 2 is a front view of the seat plate section showing the second embodiment. Figure 3A is a perspective view of the abnormality detection control device, Figure 3B is a perspective view explaining the operation of the abnormality signal receiving unit and control unit side, Figure 4 is a control circuit diagram of the transmitting side, and Figure 5 is a receiving side diagram. The side control circuit diagram, FIG. 6, is an action explanatory diagram showing the difference between the pulses of the obstacle detection signal and the abnormality detection signal. In the figure, 1 is a shutter curtain, 1 is an obstacle detection switch, 8 is an abnormality detection control device, 11 is an abnormality signal transmitter, 13
14 is an audible alarm, 14 is an abnormal signal receiving section, and 15 is a control section. Figure 3 Figure 4 Figure 5 Voltage drop detection signal
Claims (1)
ターカーテン下端部に障害物検知スイッチを設け、該障
害物検知スイッチによる検知信号を、シャッターカーテ
ン下端部に設けた送信部から躯体側に設けた受信部に送
信してシャッターカーテンの下降を停止するように構成
してなる電動シャッターにおいて、前記シャッターカー
テン下端部に異常報知器を設け、該異常報知器を、障害
物検知スイッチが検知作動したことで報知作動するよう
障害物検知スイッチに連繋したことを特徴とする電動シ
ャッターの異常報知装置。 ２）前記第１請求項記載の電動シャッターにおいて、前
記送信部に異常報知器を設け、該異常報知器を、障害物
検知スイッチが検知作動したことで作動するよう障害物
検知スイッチに連繋すると共に、シャッターカーテン最
下端に、シャッターカーテンが全閉状態に最下降したと
き床面に接当する突当て部材を設けて、全閉状態で障害
物検知スイッチが床面に接地するのを規制したことを特
徴とする電動シャッターの異常報知装置。[Scope of Claims] 1) An obstacle detection switch is provided at the lower end of the shutter curtain of an electric shutter that opens and closes an opening in a building, and a transmitter is provided at the lower end of the shutter curtain to transmit a detection signal from the obstacle detection switch. In an electric shutter configured to send a signal from the bottom of the shutter curtain to a receiving unit provided on the frame side to stop the lowering of the shutter curtain, an abnormality alarm is provided at the lower end of the shutter curtain, and the abnormality alarm is used to detect an obstacle. An abnormality alarm device for an electric shutter, characterized in that it is connected to an obstacle detection switch so that an alarm is activated when the switch is activated. 2) In the electric shutter according to the first aspect, an abnormality alarm is provided in the transmitter, and the abnormality alarm is linked to the obstacle detection switch so as to be activated when the obstacle detection switch is detected and activated. , An abutment member is provided at the lowest end of the shutter curtain that comes into contact with the floor when the shutter curtain is lowered to the fully closed state to prevent the obstacle detection switch from coming into contact with the floor when the shutter curtain is fully closed. An abnormality alarm device for electric shutters featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10494090A JP2936421B2 (en) | 1990-04-20 | 1990-04-20 | Abnormality notification device for electric shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10494090A JP2936421B2 (en) | 1990-04-20 | 1990-04-20 | Abnormality notification device for electric shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH045388A true JPH045388A (en) | 1992-01-09 |
| JP2936421B2 JP2936421B2 (en) | 1999-08-23 |
Family
ID=14394093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10494090A Expired - Fee Related JP2936421B2 (en) | 1990-04-20 | 1990-04-20 | Abnormality notification device for electric shutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2936421B2 (en) |
-
1990
- 1990-04-20 JP JP10494090A patent/JP2936421B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2936421B2 (en) | 1999-08-23 |
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