JPH048357Y2 - - Google Patents
Info
- Publication number
- JPH048357Y2 JPH048357Y2 JP1984112788U JP11278884U JPH048357Y2 JP H048357 Y2 JPH048357 Y2 JP H048357Y2 JP 1984112788 U JP1984112788 U JP 1984112788U JP 11278884 U JP11278884 U JP 11278884U JP H048357 Y2 JPH048357 Y2 JP H048357Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- water leakage
- electrode plates
- leakage detection
- plate
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 238000010292 electrical insulation Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims 1
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Examining Or Testing Airtightness (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、施設物を設置した場所で該施設物の
機能に支障を来すような漏水または結露が発生し
たとき、その漏水または露を検出するのに用いら
れる漏水検知センサーに関するものである。[Detailed description of the invention] (Field of industrial application) This invention is designed to eliminate water leakage or condensation when water leakage or condensation occurs in a place where a facility is installed, which may impede the function of the facility. This relates to a water leakage detection sensor used for water leakage detection.
（従来の技術）
従来、施設物の機能に支障を来すような設置箇
所における漏水を検出するには、露出した金属板
又は金属棒からなる２個の電極体を、ある間隔を
あけ対立させて施設物に適当な方法で付設し、両
電極体からなる電極部に電位差を与えておき、電
極部に漏水があつたとき電気回路が形成されて流
れた電流を検知することにより漏水を検出してい
た。しかしながらこの方法では、検出する場所が
広いときは付設するのに手数がかかり費用も多く
要し、逆に場所が狭くなると付設することが困難
になり、そのうえ漏水する量が比較的多くないと
検出が難しいと云う欠点がある。(Prior art) Conventionally, in order to detect water leakage at installation locations that would impede the functionality of facilities, two electrode bodies made of exposed metal plates or metal rods were placed facing each other with a certain distance between them. A water leak is detected by attaching it to a facility in an appropriate manner and applying a potential difference to the electrode part consisting of both electrode bodies, and when water leaks to the electrode part, an electric circuit is formed and the flowing current is detected. Was. However, with this method, when the area to be detected is large, installation is labor-intensive and expensive; conversely, when the area is narrow, installation is difficult; The disadvantage is that it is difficult to
上記の欠点を補うものの１つとして、実公昭54
−2718号公報において、上記電極部に代わる電極
帯が提案されている。それは二本のステンレス撚
線を、透明な可撓性合成樹脂製帯状体内に、平行
且つ隔離して埋め込み、打抜き折曲して形成した
先端尖鋭な脚部を有する二個の電極を、小間隔を
置いて、上記脚部を夫々異なる撚線に接続される
ように上記帯状体に突き刺して、端部を帯状体に
沿い折り曲げ圧着することにより取りつけ、且つ
その複数組を相当の距離を置いて同様に取りつけ
た漏水検知警報用電極帯である。 As one of the things that compensate for the above drawbacks,
In Japanese Patent No. 2718, an electrode band is proposed in place of the above-mentioned electrode portion. It consists of two stranded stainless steel wires embedded in a transparent flexible synthetic resin strip in parallel and separated, and two electrodes with sharp legs formed by punching and bending, placed at a small distance. , the leg parts are inserted into the band-like body so as to be connected to different stranded wires, and the ends are attached by bending and crimping along the band-like body, and the plural sets are placed at a considerable distance. This is an electrode band for water leakage detection and alarm installed in the same way.
この電極帯は、漏水検知を必要とする場所の床
などに沿つて張設し、両撚線の一端の一方を直接
電源に接続し、他方をシグナルランプなどを介し
て電源に接続して使用される。 This electrode strip is used by stretching it along the floor of the place where water leakage detection is required, and connecting one end of both stranded wires directly to a power source, and the other to the power source via a signal lamp, etc. be done.
（本考案が解決しようとする問題点）
上記の電極帯は、広い面積の場所に付設したと
き１本の電極帯に電極対を多数並設されているの
で、漏水を検知しても多数ある電極対のうちどれ
が検知したのか探がすのに手間がかかり使用上き
わめて不便である。また露出した電極がよごれな
どのため通電能力が低下するので、これらを除く
のに取り外しなどが面倒なので保守管理が困難で
ある。また床上に完全に接触した状態で付設する
のが困難なため、床上に結露して生じた露の検出
が不可能である等の欠点を有している。(Problem to be solved by the present invention) When the above electrode strip is attached to a large area, many electrode pairs are arranged in parallel on one electrode strip, so even when water leakage is detected, there are many electrode pairs. It is very inconvenient to use because it takes time and effort to find out which one of the electrode pairs has detected something. Furthermore, the current carrying capacity is reduced due to dirt on the exposed electrodes, and maintenance is difficult because it is troublesome to remove them to remove them. Furthermore, since it is difficult to attach the device in complete contact with the floor, it has the disadvantage that it is impossible to detect dew formed by condensation on the floor.
（問題点を解決するための手段）
本考案はこのような従来の問題点に着目してな
されたものであつて、漏水などの検知に従来にな
い特殊な形態の漏水検知センサー（以下単にセン
サーと云う）を用いることにより、漏水を検知す
る場所への付設が広さに関係なく極めて容易であ
り、さらに検知した漏水箇所の発見も非常に簡単
にできるので使用上便利であり、そのうえ付設取
り外しが簡易なので保守管理を容易に且つ確実に
行なうことができ、また床に結露により生じた露
の検知もできる等その性能を飛躍的に向上せしめ
て上記問題点を解決することを目的としている。(Means for Solving the Problems) The present invention was made by focusing on such conventional problems, and uses a special type of water leak detection sensor (hereinafter simply referred to as a sensor) for detecting water leaks, etc. By using a water leakage sensor, it is extremely easy to attach it to a place where water leaks are to be detected, regardless of its size, and it is also very easy to find the detected water leakage point, making it convenient for use. The purpose of this invention is to solve the above-mentioned problems by dramatically improving its performance, such as making it possible to perform maintenance easily and reliably since it is simple, and also being able to detect dew formed by condensation on the floor.
本考案は可撓性と電気絶縁性とを有する、合成
樹脂またはゴムなどの何れかで造られた板状部材
または適宜な基材に固着された該板状部材からな
る電極基板の前記板状部材の一面に、耐蝕性を有
する金属からなる電極板の複数枚を、表面を露出
させて適宜な間隙で埋込み配設し該各電極板を隣
接した電極板が互いに異なる極性になるように接
続した両極の取出端子を備えたことを特徴とする
センサーである。 The present invention relates to an electrode substrate having flexibility and electrical insulation properties, made of a synthetic resin or rubber, or a plate-like member fixed to a suitable base material. A plurality of electrode plates made of a corrosion-resistant metal are embedded on one surface of the member at appropriate intervals with the surface exposed, and the electrode plates are connected so that adjacent electrode plates have different polarities from each other. This sensor is characterized by having a bipolar extraction terminal.
（作用）
センサーは、漏水検知を必要とする場所に、電
極板を配設した面を下にして電極基板を置いて付
設し、電極基板の両極取出端子に従来の検知器と
同様に電位差を与えておくと、漏水したとき隣接
した電極板が触水して電気回路を形成するので電
流が流れ、その電流を検出して漏水を検知する。(Function) The sensor is attached to the location where water leakage detection is required by placing the electrode board with the side with the electrode plate facing down, and applying a potential difference to the bipolar terminals of the electrode board in the same way as in conventional detectors. If this is done, when water leaks, the adjacent electrode plates will come in contact with the water and form an electric circuit, causing a current to flow and detecting the current to detect a water leak.
電極板が適宜な間隙で配設され且つ隣接した同
士が異なる極性を有するように接続されているた
め、狭い範囲や或は片寄つて床などに結露して生
じた露または少ない水量による漏水に対しても鋭
敏に且つ正確に検知し、さらに電極基板が可撓性
を持つているので床などに対する接触が良いた
め、床などに結露して生じた露のように漏水量の
少ないときでも確実に漏水を検知する。又電極基
板が可撓性を有して板状なので、漏水を検知する
場所に単に置くか或は接着テープなどで適宜係止
するだけで付設できるので、その付設が極めて容
易に行なうことができ、その取り外しも簡易であ
る。漏水検知を必要とする場所が広いときは適宜
の間隔を置いて複数個設置するので、万一漏水を
検知したときその漏水箇所を発見するのが簡単で
ある。又前記の如く付設したものの取り外しが容
易なので保守管理を確実に行なうことができる。 Since the electrode plates are arranged with appropriate gaps and are connected so that adjacent ones have different polarities, it is possible to prevent water leakage due to condensation on the floor or small amount of water in a narrow area or unevenly spaced areas. The electrode board is flexible, so it makes good contact with the floor, so it can be detected reliably even when there is a small amount of water leaking, such as from dew condensation on the floor. Detect water leaks. In addition, since the electrode substrate is flexible and plate-shaped, it can be attached by simply placing it in the location where water leakage is to be detected or by securing it with adhesive tape, etc., making it extremely easy to attach. , its removal is also easy. When the area where water leakage detection is required is large, multiple units are installed at appropriate intervals, making it easy to find the location of the leak in the event a water leak is detected. Furthermore, since the attached items can be easily removed as described above, maintenance can be carried out reliably.
（実施例）
本考案を第１図及び第２図に示す一実施例に基
づき以下詳述する。１はセンサー、２は可撓性と
適度な柔軟性と電気絶縁性とを有するシリコンゴ
ムで造られた板状部材３からなる方形状の電極基
板、４は耐蝕性と電動性とを有する金属例えばス
テンレススチールの薄板を打抜き製作され、電極
基板２の一面に表面を露出させて適宜の間隙を置
いて並列４1〜４5，４6〜４10して埋込み配設され
た長方形状の電極板である。(Example) The present invention will be described in detail below based on an example shown in FIGS. 1 and 2. 1 is a sensor, 2 is a rectangular electrode substrate made of a plate-like member 3 made of silicone rubber that is flexible, has appropriate flexibility, and has electrical insulation properties, and 4 is a metal that is corrosion resistant and electrically conductive. For example, rectangular electrodes are made by punching out a thin plate of stainless steel, and embedded in rows 4 1 to 4 5 , 4 6 to 4 10 in parallel with appropriate gaps, with the surface exposed on one surface of the electrode substrate 2. It is a board.
並列して配設された電極板４1〜４10は、隣接
した電極板例えば４1，４2，４6が互いに異なる
極性を示すように千鳥状に接続４1−４7−４3−
４9−４5，４6−４2−４8−４4−４10（第１図点
線で示す）されている。 The electrode plates 4 1 to 4 10 arranged in parallel are connected in a staggered manner so that adjacent electrode plates 4 1 , 4 2 , and 4 6 exhibit mutually different polarities 4 1 -4 7 -4 3 -
4 9 -4 5 , 4 6 -4 2 -4 8 -4 4 -4 10 (shown by dotted lines in Figure 1).
５は電極基板２の一端に設けられた、一端に位
置する極性の異なる電極板４5と４10に接続する
引出線５1と５2からなる取出端子である。 Reference numeral 5 designates an extraction terminal provided at one end of the electrode substrate 2 and consisting of lead wires 5 1 and 5 2 connected to electrode plates 4 5 and 4 10 of different polarity located at one end.
電極基板２は、一般的に各電極板４1〜４10を
注入型に配置したのち、該注入型にシリコンゴム
を注入するような方法で造られる。 The electrode substrate 2 is generally manufactured by arranging each of the electrode plates 4 1 to 4 10 in an injection mold and then injecting silicone rubber into the injection mold.
このセンサー１は、第３図に示すように、漏水
検知を必要とする施設物７に電極板４1〜４10の
ある面を施設物７に直接接触するように電極基板
２を取付ける（必要に応じて電極板４1〜４10が
施設物７に接触しないように取付ける場合もあ
る）か、施設物７の設置された床上に上記と同様
にして取付けるかして、取出端子５の引出線５1，
５2と連結した配線に電源８及び警報器９を接続
して設置する。万一施設物７に漏水がかかると、
センサー１の各電極板４1〜４10が触水して異な
る極性の電極板間例えば４1−４6，４3−４8に回
路が形成されて電流が流れるため警報器９が鳴つ
て漏水を検出する。 As shown in FIG. 3, this sensor 1 is constructed by attaching an electrode substrate 2 to a facility 7 that requires water leakage detection so that the surface with electrode plates 4 1 to 4 10 is in direct contact with the facility 7 (as required). Depending on the situation, the electrode plates 4 1 to 4 10 may be installed so that they do not come into contact with the facility 7), or they may be installed on the floor where the facility 7 is installed in the same manner as above, and the extraction terminal 5 may be line 5 1 ,
5 Connect and install the power supply 8 and alarm device 9 to the wiring connected to 2 . In the event that water leaks into facility 7,
When each of the electrode plates 4 1 to 4 10 of the sensor 1 comes in contact with water, a circuit is formed between the electrode plates of different polarities, for example 4 1 -4 6 , 4 3 -4 8 , and a current flows, causing the alarm 9 to sound. Detect water leaks.
多数のセンサー１を配設した場合は、第４図に
示すように、並列接続された各センサー１1，１
２，１3，１4の夫々に直列に発光ダイオード１０
１，１０2，１０3，１０4などを接続して、電流が
流れたとき発光ダイオード１０1〜１０4を発光さ
せて漏水位置を確認するようにする。 When a large number of sensors 1 are arranged, as shown in FIG.
A light emitting diode 10 is connected in series to each of 2 , 1 3 and 1 4 .
1 , 10 2 , 10 3 , 10 4 , etc. are connected so that when current flows, the light emitting diodes 10 1 to 10 4 emit light to confirm the location of water leakage.
この場合、各電極板４1〜４10が適宜な間隙で
配設され且つ隣接した同士が異なる極性を有する
ように接続されているため、狭い範囲や或は片寄
つて床などに結露して生じた露または少ない水量
による漏水に対しても鋭敏に且つ正確に検知し、
さらに電極基板が可撓性を持つているので漏水検
知する物に対して接触が良いため、床などに結露
して生じた露のように漏水量の少ないときでも確
実に漏水を検知する。又施設物７の外被が金属で
あつても電極基板２が電気絶縁性を有しているの
で電極板４1〜４10面を外方にして直接貼り付け
るなどの方法で取付けられる。又電極基板２が可
撓性を有して板状なので、漏水検知の必要な場所
に単に置くか或は接着テープなどで適宜係止する
だけで付設できるので、その付設が極めて容易に
行なうことができ、従つて逆に取り外しも簡易な
ため保守管理が容易である。又漏水検知を必要と
する場所が広いときでも適宜の間隔を置いて複数
個設置するので、万一漏水を検知したとき漏水箇
所を発見するのが容易である。又構造が簡単で製
作が容易である。 In this case, since the electrode plates 4 1 to 4 10 are arranged with appropriate gaps and are connected so that adjacent ones have different polarities, condensation may occur in a narrow area or on the floor etc. Sensitive and accurate detection of water leaks caused by dew or small amounts of water.
Furthermore, since the electrode substrate is flexible, it makes good contact with the object to be detected for water leakage, so it can reliably detect water leakage even when the amount of water leakage is small, such as from dew condensation on the floor. Furthermore, even if the outer sheath of the facility 7 is made of metal, the electrode substrate 2 has electrical insulation properties, so that it can be attached directly with the electrode plates 4 1 to 4 10 facing outward. Furthermore, since the electrode substrate 2 is flexible and has a plate shape, it can be attached by simply placing it in a place where water leakage detection is required or by securing it with adhesive tape or the like, making the attachment extremely easy. Therefore, since it is easy to remove, maintenance management is easy. Furthermore, even when the area where water leakage detection is required is large, multiple units are installed at appropriate intervals, making it easy to find the location of water leakage in the event that water leakage is detected. Moreover, the structure is simple and manufacturing is easy.
上記の一実施例において、電極基板２はシリコ
ンゴムで造られたが、シリコンゴムと同等の特性
を有する他の合成樹脂や天然ゴムなどで造つても
良い。又電極基板２としてシリコンゴムからでき
た板状部材３を用いたが、板状部材３を適宜な基
材に固着したものを用いても良い。又電極板４は
電極基板２に並列して配設したが、必ずしもこの
配列に拘束されるものではなく、要するに隣接し
た電極板４同士が互いに異なる極性を有するよう
に配置されるなら良く、さらに電極板４の数及び
形状は図示したものに拘束されるものではない。 In the above embodiment, the electrode substrate 2 is made of silicone rubber, but it may be made of other synthetic resins or natural rubbers having properties similar to silicone rubber. Further, although the plate member 3 made of silicone rubber is used as the electrode substrate 2, the plate member 3 may be fixed to a suitable base material. Further, although the electrode plates 4 are arranged in parallel to the electrode substrate 2, the arrangement is not necessarily limited to this arrangement.In short, it is sufficient if adjacent electrode plates 4 are arranged so that they have different polarities, and The number and shape of the electrode plates 4 are not limited to those shown in the drawings.
（考案の効果）
(1) 構造が簡単で製造が容易なため需要家に安価
で提供できる。(Effects of the invention) (1) It has a simple structure and is easy to manufacture, so it can be provided to customers at low cost.
(2) 隣接した電極板同士が互いに異なる極性を有
するように多数の電極板を配置しているので、
漏水の検知感度が極めて高い。(2) Since a large number of electrode plates are arranged so that adjacent electrode plates have different polarities,
Water leakage detection sensitivity is extremely high.
(3) 検知感度が高いので使用範囲を拡大できて、
販売増大に寄与する。(3) The detection sensitivity is high, so the range of use can be expanded.
Contributes to increased sales.
(4) 電極基板が板状で可撓性を有しているので、
漏水検知の必要な場所への取り付け、取り外し
が極めて容易で、付設費用がかからず保守管理
が極めて容易である。(4) Since the electrode substrate is plate-shaped and flexible,
It is extremely easy to install and remove in locations where water leakage detection is required, and maintenance and management is extremely easy with no additional costs.
(5) 構造が簡単で接続部分が少なく確実に接続さ
れているので従来のものに比して信頼性が極め
て高い。(5) The structure is simple, there are few connecting parts, and the connections are secure, so the reliability is extremely high compared to conventional ones.
図面は本考案の一実施例を示すもので、第１図
は平面図、第２図は側面図、第３図及び第４図は
使用方法を説明するための簡略回路図である。
１……漏水検知センサー、２……電極基板、３
……板状部材、４，４1〜４10……電極板、５…
…取出端子、５1，５2……引出線。
The drawings show one embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a side view, and FIGS. 3 and 4 are simplified circuit diagrams for explaining the method of use. 1...Water leak detection sensor, 2...Electrode substrate, 3
...Plate member, 4,4 1 to 4 10 ...Electrode plate, 5...
...Output terminal, 5 1 , 5 2 ...Leader wire.
Claims (1)
ゴムなどの何れかで造られた板状部材または適
宜な基材に固着された該板状部材からなる電極
基板の前記板状部材の一面に、耐蝕性を有する
金属からなる電極板の複数枚を、表面を露出さ
せて適宜な間隙で埋込み配設し、該各電極板を
隣接した電極板が互いに異なる極性になるよう
に接続した両極の取出端子を備えたことを特徴
とする漏水検知センサー。 (2) シリコンゴムからなる電極基板の一面に、ス
テンレススチールからなる方形状電極板の複数
枚を、表面を露出させて適宜な間隙で並列状に
配設し、該各電極板を並列した長さ方向で千鳥
状に接続したことを特徴とする実用新案登録請
求の範囲第１項記載の漏水検知センサー。[Scope of claims for utility model registration] (1) Synthetic resin having flexibility and electrical insulation;
A plurality of electrode plates made of corrosion-resistant metal are placed on one surface of the plate-like member of the electrode substrate made of a plate-like member made of rubber or the like or fixed to an appropriate base material. A water leakage detection sensor, characterized in that it is embedded with an exposed surface and arranged at an appropriate gap, and has bipolar extraction terminals in which each of the electrode plates is connected so that adjacent electrode plates have different polarities. . (2) A plurality of rectangular electrode plates made of stainless steel are arranged in parallel with appropriate gaps on one surface of an electrode substrate made of silicone rubber, with the surface exposed, and each electrode plate is arranged in parallel with a long The water leakage detection sensor according to claim 1, characterized in that the water leakage detection sensor is connected in a staggered manner in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11278884U JPS6128033U (en) | 1984-07-25 | 1984-07-25 | Water leak detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11278884U JPS6128033U (en) | 1984-07-25 | 1984-07-25 | Water leak detection sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6128033U JPS6128033U (en) | 1986-02-19 |
| JPH048357Y2 true JPH048357Y2 (en) | 1992-03-03 |
Family
ID=30671824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11278884U Granted JPS6128033U (en) | 1984-07-25 | 1984-07-25 | Water leak detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6128033U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102009968B1 (en) * | 2018-08-06 | 2019-08-12 | 아머스 주식회사 | Flexible flat component detection sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856944B2 (en) * | 1976-06-02 | 1983-12-17 | 株式会社日立製作所 | X-ray tube focusing electrode manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856944U (en) * | 1981-10-13 | 1983-04-18 | 松下電工株式会社 | water leak detector |
-
1984
- 1984-07-25 JP JP11278884U patent/JPS6128033U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856944B2 (en) * | 1976-06-02 | 1983-12-17 | 株式会社日立製作所 | X-ray tube focusing electrode manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6128033U (en) | 1986-02-19 |
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