JPH10103546A - Gas-blast circuit breaking device - Google Patents
Gas-blast circuit breaking deviceInfo
- Publication number
- JPH10103546A JPH10103546A JP25903396A JP25903396A JPH10103546A JP H10103546 A JPH10103546 A JP H10103546A JP 25903396 A JP25903396 A JP 25903396A JP 25903396 A JP25903396 A JP 25903396A JP H10103546 A JPH10103546 A JP H10103546A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- gas
- opening
- battery
- signal
- 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
- Measuring Volume Flow (AREA)
- Safety Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Pipeline Systems (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス使用上の安全
対策としてのガス遮断装置に関し、特にガス遮断装置の
電源である電池の消耗時のガス供給遮断の処理を制御す
る手段を備えたガス遮断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 gas shut-off device as a safety measure in gas use, and more particularly to a gas shut-off device for controlling a process of shutting off a gas supply when a battery which is a power source of the gas shut-off device is consumed. The present invention relates to a shutoff device.
【０００２】[0002]
【従来の技術】ガス遮断装置における遮断弁を動作させ
るための電源として電池が使用されており、この電池の
残容量が低下した状態にあると、異常時のガス遮断の動
作ができなくなる。そこで、従来構成になるガス遮断装
置においては、図４に示すように、電池電圧の低下が検
出されたとき、遮断弁を閉じ、開栓機能を停止するガス
供給遮断手段が設けられている。2. Description of the Related Art A battery is used as a power source for operating a shut-off valve in a gas shut-off device. If the remaining capacity of the battery is low, the gas shut-off operation cannot be performed in an abnormal state. Therefore, in a gas shut-off device having a conventional configuration, as shown in FIG. 4, a gas supply shut-off means for closing a shut-off valve and stopping an opening function when a decrease in battery voltage is detected is provided.
【０００３】図４において、電池電圧検出部２１は電池
電源２０の電圧を検出することにより、電池の消耗度を
検出しており、ここで所定の消耗度まで放電した状態の
電池電圧が検出されたとき、電池電圧検出部２１は電圧
低下信号をガス遮断制御部２２に出力する。ガス遮断制
御部２２は電圧低下信号が入力されると、遮断弁２４を
閉じる。前記電圧低下信号は、同時に開栓機能停止部２
３にも入力され、閉じられた遮断弁の開栓機能の動作を
停止させる。In FIG. 4, a battery voltage detector 21 detects a battery consumption level by detecting a voltage of a battery power supply 20. Here, a battery voltage in a state where the battery is discharged to a predetermined consumption level is detected. At this time, the battery voltage detection unit 21 outputs a voltage drop signal to the gas cutoff control unit 22. The gas shutoff controller 22 closes the shutoff valve 24 when the voltage drop signal is input. The voltage drop signal is output simultaneously to the opening function
3 is also input to stop the operation of the opening function of the closed shut-off valve.
【０００４】[0004]
【発明が解決しようとする課題】上記従来構成において
は、電池電圧が所定値以下になったとき、即座に遮断弁
が閉じ、開栓機能が停止してしまうため、使用者は突然
のガス停止を強いられ、ガス遮断装置を交換するまでガ
スが使用できない不便を強いられることになる。In the above-mentioned conventional configuration, when the battery voltage falls below a predetermined value, the shut-off valve is immediately closed and the opening function is stopped. And the inconvenience that gas cannot be used until the gas shut-off device is replaced.
【０００５】本発明は、従来構成の問題点を解決すべく
創案されたもので、電池電圧が低下したときにも所定時
間のガス使用を可能としたガス遮断装置を提供すること
を目的とする。The present invention has been made to solve the problems of the conventional configuration, and has as its object to provide a gas shut-off device which can use gas for a predetermined time even when the battery voltage drops. .
【０００６】[0006]
【課題を解決するための手段】本発明は、異常時にガス
通路を遮断する遮断弁と、この遮断弁を含む装置の動作
電力を供給する電池電源とを備えたガス遮断装置におい
て、前記電池電源の電圧を監視して、この電圧が、装置
を動作させることができる下限値となる動作保証電圧か
ら逆上る所定時間前の電池消耗を考慮して設定された電
池消耗電圧以下になることを検出して電圧低下信号を出
力する電圧低下検出部と、前記電圧低下信号の入力時か
ら遮断弁によるガス通路閉栓を解除する開栓要求を受け
付け開栓要求信号を出力する開栓受付部と、前記電圧低
下信号入力時から前記動作保証電圧にいたるまでの所定
時間をカウントするタイマー部と、前記タイマー部によ
るカウントアップ時に前記開栓受付部からの開栓要求を
停止して開栓停止信号を出力する開栓機能停止部と、前
記電圧低下信号及び前記開栓停止信号の入力時にガス通
路を閉栓し、前記開栓要求信号が入力されたときにガス
通路を開栓させるガス遮断制御部とを具備してなること
を特徴とする。SUMMARY OF THE INVENTION The present invention relates to a gas shut-off device comprising a shut-off valve for shutting off a gas passage when an abnormality occurs, and a battery power source for supplying operating power to a device including the shut-off valve. To detect that this voltage falls below the battery consumption voltage set in consideration of the battery consumption a predetermined time before the operation guarantee voltage, which is the lower limit value at which the device can be operated, rises. A voltage drop detection unit that outputs a voltage drop signal, and an opening reception unit that receives an opening request to release the gas passage closure by the shutoff valve from the time of input of the voltage reduction signal, and outputs an opening request signal, A timer section that counts a predetermined time from when the voltage drop signal is input to the operation assurance voltage; and when the timer section counts up, stops the opening request from the opening reception section and stops opening. And a gas shutoff control for closing the gas passage when the voltage drop signal and the opening stop signal are input and opening the gas passage when the opening request signal is input. And a unit.
【０００７】上記構成によれば、電圧低下検出部により
予め設定された電池消耗電圧が検出されたとき、ガス遮
断制御部により遮断弁が閉じられてガス供給が遮断され
るが、開栓受付部に開栓要求があれば、電池電源の電圧
が予め設定された動作保証電圧となるまでの時間内で遮
断弁を開栓することができる。前記電池消耗電圧が検出
されたときから、タイマー部により動作保証電圧になる
までの時間がカウントされ、これがカウントアップした
ときには、再びガス遮断制御部により遮断弁を閉じる動
作が実行され、開栓機能制御部により開栓機能の停止が
実行される。従って、電池消耗電圧が検出されてから所
定の時間はガスの使用は可能となる。According to the above configuration, when a predetermined battery consumption voltage is detected by the voltage drop detecting unit, the gas shutoff valve is closed by the gas shutoff control unit to shut off the gas supply. If there is a request to open the shut-off valve, the shut-off valve can be opened within the time until the voltage of the battery power supply reaches the preset operation guarantee voltage. The time from when the battery consumption voltage is detected to when the operation assurance voltage is attained by the timer unit is counted, and when the time counts up, the operation of closing the shutoff valve is performed again by the gas shutoff control unit, and the opening function The control unit stops the opening function. Therefore, the gas can be used for a predetermined time after the battery consumption voltage is detected.
【０００８】[0008]
【発明の実施の形態】以下、添付図面を参照して本発明
の一実施形態について説明し、本発明の理解に供する。
尚、以下の実施形態は本発明を具体化した一例であっ
て、本発明の技術的範囲を限定するものではない。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.
The following embodiments are examples embodying the present invention and do not limit the technical scope of the present invention.
【０００９】図１は、本実施形態に係るガス遮断装置の
構成を示すブロック図である。FIG. 1 is a block diagram showing the configuration of the gas cutoff device according to the present embodiment.
【００１０】図１において、ガス遮断装置１は、所定の
動作保証時間内のガス遮断装置１の動作が可能な電池電
源１０の容量が残されている消耗状態の電池電圧を検出
して電圧低下信号Ａを出力する電圧低下検出部２と、前
記電圧低下信号Ａが入力されたときから遮断弁９の開栓
受け付けを行って、開栓要求（開栓要求スイッチまたは
通信による開栓信号の入力による）があったときに開栓
要求信号Ｃを出力する開栓受付部３と、前記電圧低下信
号Ａが入力されたときから所定の動作保証時間をカウン
トして開栓終了信号Ｄを出力するタイマー部４と、前記
開栓終了信号Ｄが入力されたときに前記開栓要求信号Ｃ
による開栓を停止する閉栓停止信号Ｅを出力する開栓機
能停止部５と、前記電圧低下信号Ａまたは前記閉栓停止
信号Ｅが入力されたとき遮断弁９を閉栓動作させ、前記
閉栓停止信号Ｅの入力以前に前記開栓要求信号Ｃが入力
されたときに遮断弁９を開栓させるガス遮断制御部６と
を備えて構成されている。In FIG. 1, the gas shut-off device 1 detects a depleted battery voltage in which the capacity of a battery power source 10 capable of operating the gas shut-off device 1 within a predetermined operation guarantee time is detected, and the voltage drops. The voltage drop detecting unit 2 that outputs the signal A, and accepts the opening of the shutoff valve 9 from the input of the voltage drop signal A, and requests for opening (input of an opening request signal by an opening request switch or communication. ), And outputs an opening request signal C, and outputs the opening completion signal D by counting a predetermined operation assurance time from when the voltage drop signal A is input. A timer section 4 and the opening request signal C when the opening completion signal D is inputted;
And an opening function stopping unit 5 for outputting a closing stop signal E for stopping the opening by the above-mentioned method, and when the voltage drop signal A or the closing stop signal E is input, the shutoff valve 9 is closed, and the closing stop signal E And a gas shut-off control unit 6 for opening the shut-off valve 9 when the opening request signal C is input before the input.
【００１１】前記電圧低下検出部２は、所定の時間間
隔、例えば２４時間間隔で電池電源１０の電圧を測定し
て電池の消耗度を監視している。電池電源１０の電圧は
電池消耗の末期で図２に示すような放電特性を示すの
で、予めガス遮断装置を動作させ得る下限値の電圧を
「動作保証電圧」として設定しておき、ここから所要の
日数分逆上った位置の電圧値を「電池消耗電圧」として
設定する。電圧低下検出部２は、電池電圧を監視して、
この電池消耗電圧を検出する。前記所要の日数分とは、
例えば３日間で、前記電池消耗電圧が検出されてから、
電池電源１０の電圧が前記動作保証電圧となるまでの３
日間は、遮断弁９の開栓が可能としてガス遮断装置１を
交換するまでの猶予期間を設けたものである。例えば、
金曜日に前記電池消耗電圧が検出されたとして、この日
に電池消耗の警告報知がなされるが、土曜、日曜日まで
は遮断弁９を開栓することができ、ガス遮断装置１の動
作も保証されるので、月曜日のガス遮断装置１の交換ま
ではガスの使用はできることになる。前記動作保証電圧
から逆上る電池消耗電圧の設定は、ガス遮断装置の平均
消費電力に誤差を加味して決定され、この間を動作保証
時間とする。The voltage drop detector 2 monitors the battery consumption by measuring the voltage of the battery power supply 10 at predetermined time intervals, for example, at 24 hour intervals. Since the voltage of the battery power supply 10 shows a discharge characteristic as shown in FIG. 2 at the end of battery consumption, the lower limit voltage at which the gas shut-off device can be operated is set in advance as the “operation guarantee voltage”, and the required Is set as the "battery consumption voltage". The voltage drop detection unit 2 monitors the battery voltage,
This battery consumption voltage is detected. For the required number of days,
For example, in three days, after the battery consumption voltage is detected,
3 until the voltage of the battery power supply 10 reaches the operation assurance voltage
The days are provided with a grace period until the shutoff valve 9 can be opened and the gas shutoff device 1 is replaced. For example,
Assuming that the battery consumption voltage is detected on Friday, the battery consumption warning is given on this day. However, the shutoff valve 9 can be opened until Saturday and Sunday, and the operation of the gas shutoff device 1 is also guaranteed. Therefore, the gas can be used until the gas shut-off device 1 is replaced on Monday. The setting of the battery consumption voltage that rises backward from the operation guarantee voltage is determined in consideration of an error in the average power consumption of the gas cutoff device, and this period is set as the operation guarantee time.
【００１２】上記構成になるガス遮断装置１の動作と、
その処理手順を図１及び図３に示すフローチャートを参
照して説明する。尚、図３に示すＳ１、Ｓ２……に示す
番号は処理手順を示すステップ番号で、本文に添記する
番号と一致する。The operation of the gas shut-off device 1 having the above configuration,
The processing procedure will be described with reference to the flowcharts shown in FIGS. The numbers shown in S1, S2,... Shown in FIG.
【００１３】電池電源１０の消耗度をチェックしている
電圧低下検出部２が前記電池消耗電圧を検出したとき、
電圧低下信号Ａをガス遮断制御部６と開栓受付部３とタ
イマー部４とに出力する（Ｓ１）。電圧低下信号Ａが入
力されたガス遮断制御部６は、第１の遮断命令信号Ｂ1
を出力して遮断弁９を動作させ、ガス通路の閉栓を実行
する（Ｓ２）。When the voltage drop detecting unit 2 checking the consumption level of the battery power supply 10 detects the battery consumption voltage,
A voltage drop signal A is output to the gas cutoff control unit 6, the opening reception unit 3, and the timer unit 4 (S1). The gas cutoff control unit 6 to which the voltage drop signal A has been input is the first cutoff command signal B 1
Is output to operate the shut-off valve 9 to close the gas passage (S2).
【００１４】タイマー部４は電圧低下信号Ａが入力され
るとカウントを開始し（Ｓ３）、このタイマー部４によ
り所定時間のカウントが終了するまでの間に、開栓受付
部３に開栓要求があり、開栓要求信号Ｃが出力されたと
きには、ガス遮断制御部６は遮断弁９を開栓する（Ｓ
５）。前記タイマー部４によるカウントが終了したとき
には（Ｓ６）、開栓終了信号Ｄが出力されるので、開栓
機能停止部５は閉栓停止信号Ｅを出力して開栓要求の受
付を停止する（Ｓ７）。閉栓停止信号Ｅが入力されたガ
ス遮断制御部６は第２の遮断命令信号Ｂ2 を出力して遮
断弁９を閉栓する（Ｓ８）。When the voltage drop signal A is input, the timer section 4 starts counting (S3), and before the timer section 4 finishes counting for a predetermined time, the opening request is sent to the opening reception section 3. When the opening request signal C is output, the gas shutoff control unit 6 opens the shutoff valve 9 (S
5). When the counting by the timer unit 4 is completed (S6), the opening completion signal D is output, so that the opening function stopping unit 5 outputs the closing stop signal E to stop accepting the opening request (S7). ). Plugging the stop signal the gas cutoff controller 6 E is input to plugging the shut-off valve 9 by outputting a second cutoff command signal B 2 (S8).
【００１５】尚、上記構成において、電池消耗電圧の検
出は、２４時間サイクルでなく、短い時間間隔で検出す
ることも、常時検出することもできる。また、開栓要求
の受け付けは、当該ガス遮断装置の動作を監視する集中
監視センター等との通信により開栓要求信号の入力によ
っても行うことができる。また、電圧低下信号Ａが入力
されてから、１回目の遮断弁の復帰動作と連動して開栓
要求を受け付けるようにすることもできる。In the above configuration, the battery consumption voltage can be detected not at a 24-hour cycle but at short time intervals or at all times. The request for opening request can also be received by inputting an opening request signal through communication with a centralized monitoring center or the like that monitors the operation of the gas shutoff device. In addition, after the voltage drop signal A is input, the opening request may be accepted in conjunction with the first return operation of the shut-off valve.
【００１６】[0016]
【発明の効果】以上の説明の通り本発明によれば、電圧
低下検出部により予め設定された電池消耗電圧が検出さ
れたとき、ガス遮断制御部により遮断弁が閉じられてガ
ス供給が遮断されるが、開栓受付部に開栓要求があれ
ば、電池電源の電圧が予め設定された動作保証電圧とな
るまでの時間内で遮断弁を開栓することができる。従っ
て、電池消耗電圧が検出されてから所定の時間はガスの
使用は可能となり、利用者の便宜を図ることができる。
また、前記電池消耗電圧が検出されたときから、タイマ
ー部により動作保証電圧になるまでの時間がカウントさ
れ、これがカウントアップしたときには、再びガス遮断
制御部により遮断弁を閉じる動作が実行され、開栓機能
停止部により開栓機能の停止が実行されるので、ガス使
用の安全も確保される。As described above, according to the present invention, when a predetermined battery consumption voltage is detected by the voltage drop detecting unit, the shut-off valve is closed by the gas shut-off control unit to cut off the gas supply. However, if there is an opening request at the opening receiving unit, the shut-off valve can be opened within the time until the voltage of the battery power supply reaches the preset operation guarantee voltage. Therefore, the gas can be used for a predetermined time after the detection of the battery consumption voltage, and the convenience of the user can be achieved.
Further, the time from when the battery consumption voltage is detected to when the operation assurance voltage is obtained is counted by the timer unit. Since the stopper function is stopped by the stopper function stopper, the safety of gas use is also ensured.
【図１】本発明の一実施形態に係るガス遮断装置の構成
を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a gas cutoff device according to one embodiment of the present invention.
【図２】ガス遮断装置の電池電源の消耗時の放電特性と
動作保証電圧及び電池消耗電圧の設定を説明するグラフ
である。FIG. 2 is a graph illustrating a discharge characteristic, an operation assurance voltage, and a setting of a battery consumption voltage when a battery power supply of a gas cutoff device is consumed.
【図３】上記ガス遮断装置の動作を説明するフローチャ
ートである。FIG. 3 is a flowchart illustrating an operation of the gas shut-off device.
【図４】従来構成に係るガス遮断装置の構成を示すブロ
ック図である。FIG. 4 is a block diagram showing a configuration of a gas shut-off device according to a conventional configuration.
１ ガス遮断装置 ２ 電圧低下検出部 ３ 開栓受付部 ４ タイマー部 ５ 開栓機能停止部 ６ ガス遮断制御部 ９ 遮断弁 １０ 電池電源 DESCRIPTION OF SYMBOLS 1 Gas shut-off device 2 Voltage drop detection part 3 Opening reception part 4 Timer part 5 Opening function stop part 6 Gas shut-off control part 9 Shut-off valve 10 Battery power
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 美保 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 白沢 忠徳 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 温井 一光 神奈川県藤沢市みその台９−10 (72)発明者 金子 功 東京都目黒区中目黒４−13−21 Ｂ−807 (72)発明者 藤澤 和也 東京都目黒区中目黒４−13−21 Ａ−408 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Miho Yoshida 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. 72) Inventor Kazumitsu Atsui 9-10 Misonodai, Fujisawa-shi, Kanagawa (72) Inventor Isao Kaneko 4-13-21 B-807, Nakameguro, Meguro-ku, Tokyo (72) Inventor Kazuya Fujisawa, Meguro-ku, Tokyo Nakameguro 4-13-21 A-408
Claims (1)
この遮断弁を含む装置の動作電力を供給する電池電源と
を備えたガス遮断装置において、 前記電池電源の電圧を監視して、この電圧が、装置を動
作させることができる下限値となる動作保証電圧から逆
上る所定時間前の電池消耗を考慮して設定された電池消
耗電圧以下になることを検出して電圧低下信号を出力す
る電圧低下検出部と、前記電圧低下信号の入力時から遮
断弁によるガス通路閉栓を解除する開栓要求を受け付け
開栓要求信号を出力する開栓受付部と、前記電圧低下信
号入力時から前記動作保証電圧にいたるまでの所定時間
をカウントするタイマー部と、前記タイマー部によるカ
ウントアップ時に前記開栓受付部からの開栓要求を停止
して開栓停止信号を出力する開栓機能停止部と、前記電
圧低下信号及び前記開栓停止信号の入力時にガス通路を
閉栓し、前記開栓要求信号が入力されたときにガス通路
を開栓させるガス遮断制御部とを具備してなることを特
徴とするガス遮断装置。1. A shutoff valve for shutting off a gas passage when an abnormality occurs,
In a gas shut-off device provided with a battery power supply for supplying operating power to a device including the shut-off valve, a voltage of the battery power source is monitored, and the operation guarantees that the voltage is a lower limit value at which the device can be operated. A voltage drop detection unit that detects a voltage lower than a battery consumption voltage set in consideration of a battery consumption a predetermined time before rising from a voltage and outputs a voltage drop signal, and a shutoff valve from the time of input of the voltage drop signal An opening reception unit that receives an opening request for releasing the gas passage closure and outputs an opening request signal, a timer unit that counts a predetermined time from when the voltage drop signal is input to the operation assurance voltage, and An opening function stopping unit that stops an opening request from the opening receiving unit and outputs an opening stop signal when the timer unit counts up, and inputs the voltage drop signal and the opening stop signal. A gas shut-off control unit that sometimes closes the gas passage and opens the gas passage when the opening request signal is input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25903396A JP3986104B2 (en) | 1996-09-30 | 1996-09-30 | Gas shut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25903396A JP3986104B2 (en) | 1996-09-30 | 1996-09-30 | Gas shut-off device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10103546A true JPH10103546A (en) | 1998-04-21 |
| JP3986104B2 JP3986104B2 (en) | 2007-10-03 |
Family
ID=17328407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25903396A Expired - Lifetime JP3986104B2 (en) | 1996-09-30 | 1996-09-30 | Gas shut-off device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3986104B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357468A (en) * | 2001-05-30 | 2002-12-13 | Matsushita Electric Ind Co Ltd | Gas shut-off device |
| JP2003028400A (en) * | 2001-07-19 | 2003-01-29 | Matsushita Electric Ind Co Ltd | Gas cut-off device |
| JP2003028421A (en) * | 2001-07-11 | 2003-01-29 | Matsushita Electric Ind Co Ltd | Gas cutoff system |
| JP2007285461A (en) * | 2006-04-19 | 2007-11-01 | Matsushita Electric Ind Co Ltd | Gas-blast circuit-breaker |
| JP2008059263A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Ind Co Ltd | Gas shutoff device |
| JP2008059025A (en) * | 2006-08-29 | 2008-03-13 | Matsushita Electric Ind Co Ltd | Gas shutoff device |
| JP2008203247A (en) * | 2008-01-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | Gas blast circuit breaker |
| JP2008262596A (en) * | 2008-07-11 | 2008-10-30 | Matsushita Electric Ind Co Ltd | Gas-blast circuit breaker |
| JP2008268092A (en) * | 2007-04-24 | 2008-11-06 | Ricoh Elemex Corp | Gas meter |
| WO2010070902A1 (en) * | 2008-12-19 | 2010-06-24 | パナソニック株式会社 | Gas shutoff device |
-
1996
- 1996-09-30 JP JP25903396A patent/JP3986104B2/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357468A (en) * | 2001-05-30 | 2002-12-13 | Matsushita Electric Ind Co Ltd | Gas shut-off device |
| JP4610124B2 (en) * | 2001-05-30 | 2011-01-12 | パナソニック株式会社 | Gas shut-off device |
| JP2003028421A (en) * | 2001-07-11 | 2003-01-29 | Matsushita Electric Ind Co Ltd | Gas cutoff system |
| JP2003028400A (en) * | 2001-07-19 | 2003-01-29 | Matsushita Electric Ind Co Ltd | Gas cut-off device |
| JP4674008B2 (en) * | 2001-07-19 | 2011-04-20 | パナソニック株式会社 | Gas shut-off device |
| JP4508149B2 (en) * | 2006-04-19 | 2010-07-21 | パナソニック株式会社 | Gas shut-off device |
| JP2007285461A (en) * | 2006-04-19 | 2007-11-01 | Matsushita Electric Ind Co Ltd | Gas-blast circuit-breaker |
| JP2008059025A (en) * | 2006-08-29 | 2008-03-13 | Matsushita Electric Ind Co Ltd | Gas shutoff device |
| JP4544216B2 (en) * | 2006-08-29 | 2010-09-15 | パナソニック株式会社 | Gas shut-off device |
| JP2008059263A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Ind Co Ltd | Gas shutoff device |
| JP4544218B2 (en) * | 2006-08-31 | 2010-09-15 | パナソニック株式会社 | Gas shut-off device |
| JP2008268092A (en) * | 2007-04-24 | 2008-11-06 | Ricoh Elemex Corp | Gas meter |
| JP2008203247A (en) * | 2008-01-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | Gas blast circuit breaker |
| JP2008262596A (en) * | 2008-07-11 | 2008-10-30 | Matsushita Electric Ind Co Ltd | Gas-blast circuit breaker |
| JP2010145030A (en) * | 2008-12-19 | 2010-07-01 | Panasonic Corp | Gas cut-off device |
| WO2010070902A1 (en) * | 2008-12-19 | 2010-06-24 | パナソニック株式会社 | Gas shutoff device |
| CN102257367A (en) * | 2008-12-19 | 2011-11-23 | 松下电器产业株式会社 | Gas shutoff device |
| US8522815B2 (en) | 2008-12-19 | 2013-09-03 | Panasonic Corporation | Gas shutoff device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3986104B2 (en) | 2007-10-03 |
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