JPH0239945B2 - HODENKYOKUBANNOSEIZOHOHO - Google Patents
HODENKYOKUBANNOSEIZOHOHOInfo
- Publication number
- JPH0239945B2 JPH0239945B2 JP3752685A JP3752685A JPH0239945B2 JP H0239945 B2 JPH0239945 B2 JP H0239945B2 JP 3752685 A JP3752685 A JP 3752685A JP 3752685 A JP3752685 A JP 3752685A JP H0239945 B2 JPH0239945 B2 JP H0239945B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge electrode
- discharge
- electrode plate
- manufacturing
- shearing
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 26
- 238000010008 shearing Methods 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 13
- 230000001154 acute effect Effects 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
- Electrostatic Separation (AREA)
Description
【発明の詳細な説明】
[産業上の利用分野]
この発明は放電極板の製造方法に関するもの
で、更に詳細には、コロナ放電による塵埃への荷
電現象を利用した集塵機、空気清浄機に使用され
る放電極板の製造方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a method of manufacturing a discharge electrode plate, and more specifically, to a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate, and more specifically, a method for manufacturing a discharge electrode plate. The present invention relates to a method of manufacturing a discharge electrode plate.
[従来の技術]
一般に生産上のコツトレル集塵機や静電式空気
清浄機は、コロナ放電による塵埃への荷電現象を
利用したものとして知られている。これら集塵機
等においてコロナ放電を行う放電極は鋭利であれ
ばある程放電効率すなわち塵埃の捕集効率が優れ
ているとされている。そのため、従来では上記放
電極として、ワイヤー放電極あるいは針状放電極
の2種類が採用されている。[Prior Art] In general, Kottle dust collectors and electrostatic air cleaners used in production are known to utilize the phenomenon of charging dust due to corona discharge. It is said that the sharper the discharge electrode for performing corona discharge in these dust collectors, the better the discharge efficiency, that is, the dust collection efficiency. Therefore, conventionally, two types of discharge electrodes have been employed: a wire discharge electrode and a needle discharge electrode.
[発明が解決しようとする問題点]
しかしながら、前者すなわちワイヤー放電極
は、加工が容易で構造も簡単であるが、強度上ワ
イヤーの細さに限界があるため、性能が劣るとい
う欠点があり、また、後者すなわち針状放電極
は、第13図に示すように、放電部aの先端を非
常に鋭利にできるので、性能は優れているが、放
電部aの先端を鋭くするためには、加工が面倒と
なり、熟練を要し、しかも、全体の構造も複雑に
なるという欠点があつた。[Problems to be Solved by the Invention] However, although the former, that is, the wire discharge electrode, is easy to process and has a simple structure, it has the disadvantage of inferior performance because there is a limit to the thinness of the wire in terms of strength. The latter, that is, the needle-shaped discharge electrode, has excellent performance because the tip of the discharge part a can be made very sharp as shown in FIG. 13, but in order to make the tip of the discharge part a sharp, The drawbacks were that the processing was troublesome, required skill, and the overall structure was complicated.
また、上記ワイヤー放電極、針状放電極の他に
第14図に示すような金属板bを金型による打抜
きによつて先尖状の放電用突片Cを突設した放電
極板dが使用されているが、従来のこの種放電極
板dでは放電用突片Cの先端が丸みを帯びてしま
い、鋭利に形成することは不可能であり塵埃の捕
集効率の向上を図ることができなかつた。 In addition to the above-mentioned wire discharge electrode and needle-shaped discharge electrode, there is also a discharge electrode plate d in which a pointed discharge projection C is protruded from a metal plate b as shown in FIG. 14 by punching it with a die. However, in the conventional discharge electrode plate d of this type, the tip of the discharge protrusion C is rounded, and it is impossible to form it sharply, making it difficult to improve the dust collection efficiency. I couldn't do it.
[問題点を解決するための手段]
この発明は、上記事情に鑑みなされたもので、
上記技術的課題を解決するために、金属製基板の
長手方向の一辺に連続する凹凸部を剪断により形
成する第1工程と、上記凸部の一辺に鋭角に交わ
る切断線をもつて上記第1工程の剪断方向と同一
方向に剪断する第2工程とにより、第1凸部に鋭
角かつ先端に向つて薄肉状となる放電部を形成す
ることを特徴とする放電極板の製造方法を提供し
ようとするものである。[Means for solving the problem] This invention was made in view of the above circumstances, and
In order to solve the above-mentioned technical problem, the first step is to form a concavo-convex portion continuous on one side in the longitudinal direction of the metal substrate by shearing, and to Provided is a method for manufacturing a discharge electrode plate, characterized in that a second step of shearing in the same direction as the shearing direction of the step forms a discharge portion that has an acute angle and becomes thinner toward the tip of the first convex portion. That is.
具体的には、上記金属製基板に、例えば導電性
の良い鉄、ステンレス、アルミニウムあるいは亜
鉛引きの鋼板等の金属が使用され、この金属製基
板の長手方向の一辺に連続する凹凸部はNCカツ
ターによる剪断あるいは打抜き等によつて形成さ
れる。 Specifically, a metal with good conductivity such as iron, stainless steel, aluminum, or galvanized steel plate is used for the metal substrate, and the concave and convex portions that are continuous on one longitudinal side of this metal substrate are cut using an NC cutter. It is formed by shearing or punching.
[作用] 上記技術的手段は次のように作用する。[Effect] The above technical means works as follows.
金属製基板の長手方向の一辺に連続する凹凸部
を剪断等によつて形成する第1工程を行うことに
より、凸部に剪断方向に沿う引張り変形が生じ、
この凸部の一辺に鋭角に交わる切断線をもつて第
1工程の剪断方向と同一方向に剪断する第2工程
を行うことにより、上記引張り変形と相俟つて同
一方向に引張り変形が生じて、上記凸部に鋭角か
つ先端に向つて薄肉状となる放電部が形成され
る。 By performing the first step of forming continuous uneven parts on one longitudinal side of the metal substrate by shearing or the like, tensile deformation occurs in the protruding parts along the shearing direction,
By performing the second step of shearing in the same direction as the shearing direction of the first step with a cutting line that intersects at an acute angle with one side of the convex portion, tensile deformation occurs in the same direction in conjunction with the above-mentioned tensile deformation, A discharge portion is formed in the convex portion at an acute angle and becomes thinner toward the tip.
[実施例]
以下にこの発明の実施例を添附図面に基づいて
詳細に説明する。[Embodiments] Examples of the present invention will be described in detail below with reference to the accompanying drawings.
第1図aないしdはこの発明の第一実施例の工
程を示す概略正面図で、放電極板を製造するに当
たつて、まず、同図aに示すような導電性の金属
製基板1を用意すると共に、同図bに示すよう
に、上記基板1の長手方向の一辺に連続する矩形
状の凹凸部20をNCカツター(図示せず)によ
つて形成する前工程を行つた後、この発明の製造
方法を行う場合である。すなわち、まず、同図c
に示すように凸部30の先端側の隣接する二辺に
またがつて傾斜状の剪断加工(第1工程)を行う
と、剪断部4はNCカツターの剪断方向に引張ら
れるため、第3図に示すような引張り変形5が生
じる。この状態において、第2図aに示すように
上記凸部30の一辺すなわち上記剪断部4に鋭角
に交わる直線状の切断線6をもつて第1工程の剪
断方向と同一方向に剪断する第2工程を行うと、
上記第1工程による引張り変形5と相俟つて同一
方向に引張り変形7が生じて、上記凸部30に鋭
角かつ先端に向つて薄肉状となる放電部10が形
成される(第1図d、第4図参照)。なおこの場
合、上記第1工程の剪断加工及び第2工程の剪断
加工のいずれもが直線状に行なわれているが、必
ずしも直線状に剪断する必要はなく、例えば、第
2図bに示すような曲率半径の大きい緩い曲線6
aによる剪断加工によつても同様に上記凸部30
に鋭角かつ先端に向つて薄肉状となる放電部10
を形成することができる。 1A to 1D are schematic front views showing the steps of the first embodiment of the present invention. In manufacturing a discharge electrode plate, first, a conductive metal substrate 1 as shown in FIG. and after performing a pre-process of forming a continuous rectangular uneven portion 20 on one longitudinal side of the substrate 1 using an NC cutter (not shown), as shown in FIG. This is a case where the manufacturing method of this invention is carried out. That is, first, c
When the inclined shearing process (first step) is performed across the two adjacent sides of the tip side of the convex part 30 as shown in Fig. 3, the sheared part 4 is pulled in the shearing direction of the NC cutter. A tensile deformation 5 as shown in FIG. In this state, as shown in FIG. 2a, a second step is performed in which shearing is performed in the same direction as the shearing direction in the first step with a straight cutting line 6 that intersects at an acute angle with one side of the convex portion 30, that is, with the shearing portion 4. When the process is performed,
In conjunction with the tensile deformation 5 in the first step, a tensile deformation 7 occurs in the same direction, and a discharge portion 10 having an acute angle and becoming thinner toward the tip is formed in the convex portion 30 (FIG. 1d, (See Figure 4). In this case, both the shearing process in the first step and the shearing process in the second step are performed in a straight line, but it is not always necessary to shear in a straight line. A gentle curve with a large radius of curvature 6
Similarly, the convex portion 30 is
The discharge part 10 has an acute angle and becomes thinner toward the tip.
can be formed.
したがつて、この発明の製造方法によれば、簡
単な作業により、金属製基板1から長手方向の一
辺に連続する放電部10を有する放電極板8を形
成することができる。 Therefore, according to the manufacturing method of the present invention, the discharge electrode plate 8 having the discharge portion 10 continuous from the metal substrate 1 on one longitudinal side can be formed by a simple operation.
なおこの場合、上記金属製基板1には、例え
ば、導電性の良い鉄、ステンレス、アルミニウム
あるいは亜鉛引きの鋼板等の金属が使用され、ま
た、この基板は厚さ0.05〜3mm程度のものが使用
される。また、上記放電部10の先端の角度は45
度以下が好ましい。その理由は、放電部10の途
中から無駄な放電現象が生じるのを防止するため
である。 In this case, the metal substrate 1 is made of a metal with good conductivity, such as iron, stainless steel, aluminum, or galvanized steel plate, and the substrate has a thickness of about 0.05 to 3 mm. be done. Also, the angle of the tip of the discharge section 10 is 45
degree or less is preferable. The reason for this is to prevent unnecessary discharge phenomena from occurring in the middle of the discharge section 10.
第5図a,bはこの発明の第二実施例を示す製
造方法の概略正面図で、上記第一実施例の前工程
と第1工程とを同時に行つて作業工程の簡略化を
図つた場合である。すなわち、同図aに示すよう
に、用意された金属製基板1にこの金属製基板1
の中心部に連続する一対の矩形状の凹凸部20が
形成されるようにプレス等の打抜き加工(第1工
程)を行つた後、同図b及び第6図に示すよう
に、凸部30を構成する三辺の内の対向する一辺
3aの基部側から他辺3bに先端側に向う傾斜状
の切断線6をもつて上記打抜き加工方向と同一方
向に剪断加工(第2工程)を行う場合である。 Figures 5a and 5b are schematic front views of a manufacturing method showing a second embodiment of the present invention, in which the pre-process and the first process of the first embodiment are performed simultaneously to simplify the work process. It is. That is, as shown in FIG.
After performing a punching process such as a press (first step) so that a pair of continuous rectangular uneven portions 20 are formed at the center of the convex portion 30, as shown in FIG. A shearing process (second step) is performed in the same direction as the above-mentioned punching process direction with an inclined cutting line 6 from the base side of one opposing side 3a to the other side 3b toward the tip side. This is the case.
上記のように、金属製基板1に連続する矩形状
の凹凸部20を第1工程すなわち打抜き加工にて
形成することにより、凸部30の各辺が剪断方向
に沿つて引張り変形5を生じ、次の第2工程の剪
断を行うことにより、第1工程の引張り変形5と
相俟つて同一方向に引張り変形7が生じて、上記
凸部30に鋭角かつ先端部に向つて薄肉状となる
放電部12が形成され(第7図参照)、しかも、
上記第一実施例に比べて少ない工数にて放電極板
8を形成することができる。 As described above, by forming continuous rectangular concavo-convex portions 20 on the metal substrate 1 in the first step, that is, punching, each side of the convex portions 30 undergoes tensile deformation 5 along the shearing direction, By performing the next shearing in the second step, a tensile deformation 7 is generated in the same direction as the tensile deformation 5 in the first step, and the convex portion 30 has an acute angle and a discharge that becomes thinner toward the tip. A portion 12 is formed (see FIG. 7), and
The discharge electrode plate 8 can be formed with fewer man-hours than in the first embodiment.
第8図a,bはこの発明の第三実施例を示す製
造方法の概略正面図で、上記第二実施例の矩形状
凹凸部20にかえて鋸歯状の凹凸部22を第1工
程にて形成した後、第2工程の剪断により放電部
14を形成する場合である。すなわち、同図aに
示すように、用意された金属製基板1にこの金属
製基板1の中心部に連続する一対の鋸歯状の凹凸
部22が形成されるようにプレス等の打抜き加工
(第1工程)を行つた後、同図b及び第8図に示
すように、三角状の凸部32を構成する二辺の内
の一辺3cを基部側から先端側に向う鋭角状の切
断線6をもつて上記打抜き加工方向と同一方向に
剪断加工(第2工程)を行うことにより、上記第
一及び第二実施例と同様に上記凸部32に鋭角か
つ先端に向つて薄肉状となる放電部14を形成す
る場合である(第10図参照)。 FIGS. 8a and 8b are schematic front views of a manufacturing method showing a third embodiment of the present invention, in which sawtooth-shaped uneven portions 22 are added in the first step in place of the rectangular uneven portions 20 of the second embodiment. This is a case where the discharge portion 14 is formed by shearing in the second step after the formation. That is, as shown in FIG. After performing step 1), as shown in FIG. By performing shearing (second step) in the same direction as the punching direction, the convex portion 32 has an acute angle and becomes thinner toward the tip, as in the first and second embodiments. This is the case when forming the portion 14 (see FIG. 10).
なお、第三実施例において、その他の部分は上
記第二実施例と同一であるので、同一部分には同
一符号を付してその説明は省略する。 In the third embodiment, other parts are the same as those in the second embodiment, so the same parts are given the same reference numerals and the explanation thereof will be omitted.
上記のように形成された放電極板8は例えば第
11図に示すような空気清浄機の荷電部9に使用
されるのであるが、この場合、放電極板8の放電
部10,12,14は金属板状の放電対極11に
穿設された透孔13の中央に位置された状態で空
気通路の上流側に設置され、そして、空気通路の
下流側には帯電極板15及び帯電対極17とで構
成される集塵部19が設置され、更に、集塵部1
9の下流側にはフアン40が設置される。このよ
うに構成される空気清浄機において、上記フアン
40を駆動すると共に、放電極板8及び放電対極
11と集塵部19に電源50からの電圧を印加す
ると、大気中の汚染された空気Aが放電極板8と
放電対極11とによるコロナ放電により空気中の
塵埃が帯電され、そして、この空気Aが下流側の
集塵部19を通過する際、帯電極板15の電荷に
より塵埃が捕集され、清浄化された空気のみが大
気中に放出される。 The discharge electrode plate 8 formed as described above is used, for example, in the charging section 9 of an air purifier as shown in FIG. is installed on the upstream side of the air passage in a state where it is located at the center of the through hole 13 made in the metal plate-shaped discharge counter electrode 11, and the charged electrode plate 15 and the charged counter electrode 17 are placed on the downstream side of the air passage. A dust collection section 19 consisting of
A fan 40 is installed downstream of the fan 9 . In the air cleaner configured as described above, when the fan 40 is driven and a voltage from the power source 50 is applied to the discharge electrode plate 8, the discharge counter electrode 11, and the dust collecting section 19, the contaminated air A in the atmosphere is Dust in the air is charged by the corona discharge caused by the discharge electrode plate 8 and the discharge counter electrode 11, and when this air A passes through the dust collection section 19 on the downstream side, the dust is captured by the charge on the charged electrode plate 15. Only collected and purified air is released into the atmosphere.
上記のような空気清浄機において、電荷部にそ
れぞれ市販の針状放電極、ワイヤー放電極とこの
発明により製造された放電極板を使用した場合の
比較実験を行つて集塵性能を測定したところ、第
12図に示すような結果が得られ、この発明によ
り製造された放電極板を使用したものにおいて低
い放電電圧で高い集塵捕集率が得られた。 In the air purifier described above, a comparative experiment was conducted in which a commercially available needle-shaped discharge electrode, a wire discharge electrode, and a discharge electrode plate manufactured according to the present invention were used in the charging section, respectively, and the dust collection performance was measured. The results shown in FIG. 12 were obtained, and a high dust collection rate was obtained at a low discharge voltage using the discharge electrode plate manufactured according to the present invention.
[発明の効果]
以上に説明したように、この発明の放電極板の
製造方法によれば、金属製基板の長手方向の一辺
に連続する凹凸部を剪断により形成する第1工程
と、上記凸部の一辺に鋭角に交わる切断線をもつ
て上記第1工程の剪断方向と同一方向に剪断する
第2工程とにより、上記凸部に鋭角かつ先端に向
つて薄肉状となる放電部を形成するため、極めて
鋭利な先端形状を有する放電極板を迅速・容易
に、かつ、低廉に製造することができ、しかも、
製造された放電極板は従来の放電極に比べて低い
放電電圧で高い集塵性能が得られると共に、空気
清浄機等の構造の簡略化が図れる等の優れた効果
が得られるので、その利用価値は顕著である。[Effects of the Invention] As explained above, according to the method for manufacturing a discharge electrode plate of the present invention, the first step of forming a concavo-convex portion continuous on one side in the longitudinal direction of a metal substrate by shearing; A second step of shearing in the same direction as the shearing direction of the first step with a cutting line that intersects one side of the portion at an acute angle forms a discharge portion that has an acute angle and becomes thinner toward the tip of the convex portion. Therefore, a discharge electrode plate having an extremely sharp tip shape can be manufactured quickly, easily, and at low cost.
The manufactured discharge electrode plate has high dust collection performance at a lower discharge voltage than conventional discharge electrodes, and has excellent effects such as simplifying the structure of air purifiers, etc., so its use is highly recommended. The value is outstanding.
第1図aないしdはそれぞれこの発明の放電極
板の製造方法の第一実施例の工程を示す概略正面
図、第2図a,bはそれぞれ第一実施例の第2工
程を示す拡大正面図、第3図は第一実施例の第1
工程を示す斜視図、第4図は第一実施例の第2工
程を示す斜視図、第5図a,bはこの発明の第二
実施例の製造工程を示す概略正面図、第6図は第
二実施例の第2工程を示す拡大正面図、第7図は
第二実施例の第2工程を示す斜視図、第8図a,
bはこの発明の第三実施例の製造工程を示す概略
正面図、第9図は第三実施例の第2工程のを示す
拡大正面図、第10図は第三実施例の第2工程を
示す斜視図、第11図はこの発明の製造方法によ
り製造された放電極板の使用状態を示す分解斜視
図、第12図はこの発明により製造された放電極
板と従来の放電極とを比較する塵埃の捕集率−放
電電圧特性曲線図、第13図及び第14図はそれ
ぞれ従来の放電極を示す斜視図である。
符号説明、1……金属製基板、3a〜3c……
凸部の一辺、4……剪断部、5,7……引張り変
形、6,6a……切断線、8……放電極板、1
0,12,14……放電部、20……矩形状凹凸
部、22……鋸歯状凹凸部、30,32……凸
部。
Figures 1 a to d are schematic front views showing the steps of the first embodiment of the method for producing a discharge electrode plate of the present invention, and Figures 2 a and b are enlarged front views showing the second step of the first embodiment, respectively. Figure 3 shows the first example of the first embodiment.
FIG. 4 is a perspective view showing the second step of the first embodiment, FIGS. 5 a and b are schematic front views showing the manufacturing process of the second embodiment of the present invention, and FIG. FIG. 7 is an enlarged front view showing the second step of the second embodiment, FIG. 8 is a perspective view showing the second step of the second embodiment, FIG.
b is a schematic front view showing the manufacturing process of the third embodiment of the present invention, FIG. 9 is an enlarged front view showing the second step of the third embodiment, and FIG. 10 is a schematic front view showing the second step of the third embodiment. FIG. 11 is an exploded perspective view showing how the discharge electrode plate manufactured by the manufacturing method of the present invention is used, and FIG. 12 is a comparison of the discharge electrode plate manufactured by the present invention and a conventional discharge electrode. 13 and 14 are perspective views showing conventional discharge electrodes, respectively. Description of symbols, 1... Metal substrate, 3a to 3c...
One side of the convex part, 4... Shearing part, 5, 7... Tensile deformation, 6, 6a... Cutting line, 8... Discharge electrode plate, 1
0, 12, 14...Discharge portion, 20...Rectangular uneven portion, 22... Serrated uneven portion, 30, 32... Convex portion.
Claims (1)
部を剪断により形成する第1工程と、上記凸部の
一辺に鋭角に交わる切断線をもつて上記第1工程
の剪断方向と同一方向に剪断する第2工程とによ
り、上記凸部に鋭角かつ先端に向つて薄肉状とな
る放電部を形成することを特徴とする放電極板の
製造方法。 2 第1工程が矩形状凹凸部を形成する打抜き加
工である特許請求の範囲第1項記載の放電極板の
製造方法。 3 第1工程が鋸歯状凹凸部を形成する打抜き加
工である特許請求の範囲第1項記載の放電極板の
製造方法。 4 鋭角が45度以下である特許請求の範囲第1項
記載の放電極板の製造方法。[Scope of Claims] 1. A first step of forming a concavo-convex portion continuous on one side in the longitudinal direction of a metal substrate by shearing; A method for manufacturing a discharge electrode plate, characterized in that a second step of shearing in the same direction as the second step forms a discharge portion having an acute angle and becoming thinner toward the tip of the convex portion. 2. The method for manufacturing a discharge electrode plate according to claim 1, wherein the first step is a punching process for forming rectangular uneven portions. 3. The method of manufacturing a discharge electrode plate according to claim 1, wherein the first step is a punching process to form sawtooth-like uneven portions. 4. The method for manufacturing a discharge electrode plate according to claim 1, wherein the acute angle is 45 degrees or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3752685A JPH0239945B2 (en) | 1985-02-28 | 1985-02-28 | HODENKYOKUBANNOSEIZOHOHO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3752685A JPH0239945B2 (en) | 1985-02-28 | 1985-02-28 | HODENKYOKUBANNOSEIZOHOHO |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61197058A JPS61197058A (en) | 1986-09-01 |
JPH0239945B2 true JPH0239945B2 (en) | 1990-09-07 |
Family
ID=12499983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3752685A Expired - Lifetime JPH0239945B2 (en) | 1985-02-28 | 1985-02-28 | HODENKYOKUBANNOSEIZOHOHO |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0239945B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0694010B2 (en) * | 1986-12-31 | 1994-11-24 | 株式会社日本フィルトレーション | Electric dust collector |
JP2938423B1 (en) * | 1998-02-24 | 1999-08-23 | 川崎重工業株式会社 | Electric dust collector |
JP2008104937A (en) * | 2006-10-25 | 2008-05-08 | Daido Steel Co Ltd | Electric dust collector |
-
1985
- 1985-02-28 JP JP3752685A patent/JPH0239945B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS61197058A (en) | 1986-09-01 |
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