JPH0652694B2 - Coil frame manufacturing method - Google Patents
Coil frame manufacturing methodInfo
- Publication number
- JPH0652694B2 JPH0652694B2 JP2137422A JP13742290A JPH0652694B2 JP H0652694 B2 JPH0652694 B2 JP H0652694B2 JP 2137422 A JP2137422 A JP 2137422A JP 13742290 A JP13742290 A JP 13742290A JP H0652694 B2 JPH0652694 B2 JP H0652694B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- coil frame
- iron core
- coil
- molding
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- 238000000465 moulding Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、蛍光灯などの放電灯安定器等の電磁装置に
適用されるコイル枠の製造方法に関するものである。TECHNICAL FIELD The present invention relates to a method for manufacturing a coil frame applied to an electromagnetic device such as a discharge lamp ballast such as a fluorescent lamp.
通常、蛍光灯安定器は、鉄心およびコイルが巻かれるコ
イル枠等をランプの１０Ｗ，１５Ｗ，20Ｗ等のワット数
に合わせて設計される。Usually, a fluorescent ballast is designed in accordance with a wattage of 10 W, 15 W, 20 W, etc. of a lamp such as an iron core and a coil frame around which a coil is wound.
たとえば、第７図および第８図の電磁装置は、一対のＥ
形鉄心５０，５１を組み合わせ、コイル５２を巻装した
コイル枠５３を通しその中脚53ａに通したものである。
５４はコイル枠５３のフランジに形成された端子台部で
ある。この電磁装置を蛍光灯安定器に適用しワット数に
対応する場合、想像線のように高さを異ならせることが
考えられる。For example, the electromagnetic device of FIGS. 7 and 8 has a pair of E
The shaped iron cores 50 and 51 are combined, and the coil frame 53 around which the coil 52 is wound is passed through the middle leg 53a.
Reference numeral 54 is a terminal block portion formed on the flange of the coil frame 53. When this electromagnetic device is applied to a fluorescent lamp ballast and corresponds to a wattage, it is possible to make the height different as indicated by an imaginary line.
また第９図および第１０図の電磁装置は、コ字形鉄心５
６の内側のＴ字形鉄心５７を組み込んだもので、コイル
５２を巻装したコイル枠５３をＴ字形鉄心５７に通し、
取付板５８に取付けたものである。この場合も、ワット
数に対応する場合、想像線のように奥行きを異ならせ
る。The electromagnetic device shown in FIGS. 9 and 10 has a U-shaped iron core 5
Incorporating a T-shaped iron core 57 inside 6, the coil frame 53 around which the coil 52 is wound is passed through the T-shaped iron core 57.
It is attached to the attachment plate 58. Also in this case, when the wattage is supported, the depth is varied like an imaginary line.
これらの電磁装置において、鉄心は、ワット数が異なっ
ても金型を共用化できる。In these electromagnetic devices, the iron core can share the mold even if the wattage is different.
しかし、径の異なるコイル枠はそれぞれ専用の金型を用
いていたため、金型種類が増え、生産数が少ない場合に
は金型費用が負担になる。However, since the coil frames having different diameters each use a dedicated mold, the mold cost increases when the number of mold types increases and the number of products is small.
したがって、この発明の目的は、径の異なるコイル枠の
製造に金型を共用することができるコイル枠の製造方法
を提供することである。Therefore, an object of the present invention is to provide a method for manufacturing a coil frame that can share a mold for manufacturing coil frames having different diameters.
請求項(1)のコイル枠の製造方法は、端子台部をフラン
ジに有するコイル枠の前記端子台部を含む外周面の一部
を成形する第１の金型と、この第１の金型に個別に合わ
せられて前記コイル枠の外周面の残部を成形する第２の
金型と、前記コイル枠の中空部を成形する中型とによ
り、コイル枠を成形するコイル枠の製造方法であって、
前記第２の金型は前記コイル枠の径の大きさに応じて成
形面の深さが異なる複数種類からなり、前記中型は前記
第２の金型に対応して複数種類有し、前記第１の金型に
合わせられる前記第２の金型および前記中型を、前記コ
イル枠の径の大きさに応じて選択することを特徴とする
ものである。A method for manufacturing a coil frame according to claim (1) is directed to a first mold for molding a part of an outer peripheral surface of the coil frame having a terminal block portion on a flange and including the terminal block portion, and the first mold. A method of manufacturing a coil frame, the method comprising: molding a coil frame by a second mold, which is individually fitted to each other to mold the remaining portion of the outer peripheral surface of the coil frame; and a middle mold, which molds a hollow portion of the coil frame. ,
The second mold includes a plurality of types having different molding surface depths depending on the diameter of the coil frame, and the middle mold has a plurality of types corresponding to the second mold. It is characterized in that the second mold and the middle mold, which are fitted to one mold, are selected according to the size of the diameter of the coil frame.
請求項(2)のコイル枠の製造方法は、請求項(1)におい
て、前記中型に代えて、同時成形用の鉄心を用い、前記
鉄心の積層方向が前記第２の金型の成形面の深さ方向と
なるようにしたものである。A method for manufacturing a coil frame according to claim (2) is the method of manufacturing a coil frame according to claim (1), in which an iron core for simultaneous molding is used instead of the middle mold, and a lamination direction of the iron core is a molding surface of the second mold It is designed to be in the depth direction.
請求項(1)のコイル枠の製造方法によれば、第１の金型
と第２の金型とを合わせ、内部に中型を配置し、樹脂を
注入することによりコイル枠が成形される。この場合、
第１の金型により端子台部を製造し、第１の金型に対し
て成形面の深さの異なる複数種類の第２の金型を用意し
たため、径の異なる複数のコイル枠を製造する場合に第
１の金型を共用することができる。したがって、金型種
類が減り、金型経費が節減できるとともに、端子台部の
端子位置が共通になるため端子接続の自動化が容易にな
り、またコイル枠の幅および幅方向長さが同一となるた
め電磁装置の組立の自動化が容易になる。さらに金型の
製作が複雑になる端子台部を第１の金型に形成したた
め、第２の金型の製作が容易になり全体として製作を効
率化でき、さらに一台の成形機で数種のコイル枠を製造
できるので成形機の効率もよい。According to the method of manufacturing a coil frame of claim (1), the coil frame is formed by combining the first mold and the second mold, disposing the middle mold inside, and injecting the resin. in this case,
Since the terminal block part is manufactured by the first mold and a plurality of types of second molds having different molding surface depths are prepared for the first mold, a plurality of coil frames having different diameters are manufactured. In this case, the first mold can be shared. Therefore, the number of molds can be reduced, the cost of molds can be reduced, and the terminal positions of the terminal block are common, which facilitates automation of terminal connection, and the width and length in the width direction of the coil frame are the same. Therefore, the assembly of the electromagnetic device can be easily automated. Furthermore, since the terminal block part, which complicates the manufacturing of the mold, is formed on the first mold, the manufacturing of the second mold is easy and the manufacturing efficiency can be improved as a whole. Since the coil frame can be manufactured, the efficiency of the molding machine is high.
請求項(2)のコイル枠の製造方法によれば、請求項(1)の
前記中型に代えて、同時成形用の鉄心を用い、前記鉄心
の積層方向が前記第２の金型の成形面の深さ方向となる
ようにしたものであるため、鉄心を同時成形した径の異
なるコイル枠を製造することができる。According to the coil frame manufacturing method of claim (2), an iron core for simultaneous molding is used instead of the middle mold of claim (1), and the stacking direction of the iron core is the molding surface of the second mold. Since it is arranged in the depth direction, it is possible to manufacture coil frames having different diameters, which are obtained by simultaneously molding the iron core.
この発明の一実施例を第１図ないし第６図に基づいて説
明する。すなわち、このコイル枠の製造方法は、第１の
金型１と、複数の第２の金型２と、複数の鉄心３から、
コイル枠６を成形するものであり、鉄心３を同時成形す
る。An embodiment of the present invention will be described with reference to FIGS. That is, the manufacturing method of this coil frame is performed by using the first mold 1, the plurality of second molds 2, and the plurality of iron cores 3.
The coil frame 6 is molded, and the iron core 3 is simultaneously molded.
第１の金型１は、第４図のように端子台部４をフランジ
５に有するコイル枠６の端子台部４を含む外周面の一部
を成形する。端子台部４はコイル線端末を通す溝７と、
端子８（第６図）を挿着するスリット９とからなり、コ
イル枠６に巻装されるコイル（図示せず）のコイル端末
を溝７で端子８の挿通端とはんだ付けするものである。
この場合、溝７は第１の金型１により形成し、スリット
９は第１の金型１に設けたサイドコア（図示せず）によ
り形成する。また第１の金型１に鉄心３をセットする際
の鉄心の載せ面１２が形成される。10，１１は成形機の
ゲートノズルである。As shown in FIG. 4, the first mold 1 forms a part of the outer peripheral surface including the terminal base portion 4 of the coil frame 6 having the terminal base portion 4 on the flange 5. The terminal block portion 4 has a groove 7 for passing a coil wire end,
A slit 9 for inserting the terminal 8 (Fig. 6) is provided, and the coil end of the coil (not shown) wound around the coil frame 6 is soldered to the insertion end of the terminal 8 in the groove 7. .
In this case, the groove 7 is formed by the first mold 1 and the slit 9 is formed by the side core (not shown) provided in the first mold 1. Further, a mounting surface 12 for the iron core when the iron core 3 is set on the first mold 1 is formed. 10 and 11 are gate nozzles of the molding machine.
複数の第２の金型２は、第１の金型１に個別に合わせら
れてコイル枠６の外周面の残部を成形するものであって
コイル枠６の径の大きさに応じて相互に成形面１５の深
さが異なる。すなわち、コイル枠６の径の大きさに応じ
て第１の金型１に合わせられる第２の金型２を選択す
る。第２図の(a)ないし(c)はそれぞれ成形面１５の深さ
の異なる第２の金型２ａ〜２ｃと第１の金型１とを個別
に組み合わせた例である。各第２の金型２ａ〜２ｃの成
形面１５の深さが異なるので成形機のゲートノズル１０
の位置がそれにしたがって変わることとなる。１８は樹
脂注入部である。The plurality of second molds 2 are individually fitted to the first mold 1 to mold the remaining portion of the outer peripheral surface of the coil frame 6, and the second molds 2 are mutually dependent on the diameter of the coil frame 6. The depth of the molding surface 15 is different. That is, the second mold 2 to be fitted to the first mold 1 is selected according to the diameter of the coil frame 6. 2 (a) to (c) are examples in which the second molds 2a to 2c and the first mold 1 having different molding surface 15 depths are individually combined. Since the depth of the molding surface 15 of each of the second molds 2a to 2c is different, the gate nozzle 10 of the molding machine is used.
The position of will change accordingly. Reference numeral 18 is a resin injection part.
複数の同時成形用の鉄心３は、第２の金型２に対応して
積層厚さｈ１〜ｈ３が相互に異なる。この鉄心３は、第
１の金型１の載せ面１２に載せられ、第２の金型２を第
１の金型１に合わせることにより第２の金型２の成形面
１５内に納められ、その周囲に樹脂を注入させて同時成
形する。この場合、鉄心３の積層方向は第２の金型２の
成形面１５の深さ方向となっている。実施例では、鉄心
３は第３図に示すようにＴ字形でコ字形鉄心１３内に挿
入される。The plurality of cores 3 for simultaneous molding have different laminated thicknesses h 1 to h 3 corresponding to the second mold 2. The iron core 3 is placed on the placing surface 12 of the first die 1 and is accommodated in the forming surface 15 of the second die 2 by aligning the second die 2 with the first die 1. , And resin is injected into the surrounding area for simultaneous molding. In this case, the stacking direction of the iron core 3 is the depth direction of the molding surface 15 of the second mold 2. In the embodiment, the iron core 3 is inserted into the U-shaped iron core 13 in a T shape as shown in FIG.
つぎに、第５図に示す放電灯安定器を製造する場合につ
いて説明すると、第１図および第２図に示した第１の金
型１の載せ面１２に鉄心３を載せ、第１の金型１に第２
の金型２を合わせて成形し、第４図に示すように鉄心３
を同時成形してコイル枠６を形成する。このコイル枠６
にコイル（図示せず）を巻装し、コイル線のコイル線端
末を溝７に通し、またスリット９に端子８を通して端子
８の挿通端とコイル線端末とをはんだにより接続する。
このコイル枠４をコ字形鉄心１３に挿入し、第５図に示
す取付板１６に挿入し、第６図に示すカバー１７を被せ
て取付板１６にかしめ固定する。Next, the case of manufacturing the discharge lamp ballast shown in FIG. 5 will be described. The iron core 3 is placed on the placing surface 12 of the first mold 1 shown in FIGS. Second to mold 1
Molded together with the mold 2 of the above, and as shown in FIG.
Are simultaneously molded to form the coil frame 6. This coil frame 6
A coil (not shown) is wound around, the coil wire end of the coil wire is passed through the groove 7, and the terminal 8 is passed through the slit 9 to connect the insertion end of the terminal 8 and the coil wire end by soldering.
The coil frame 4 is inserted into the U-shaped iron core 13, inserted into the mounting plate 16 shown in FIG. 5, covered with a cover 17 shown in FIG. 6, and fixed to the mounting plate 16 by caulking.
この実施例によれば、第１の金型１と第２の金型２とを
合わせ、内部に鉄心３を配置することにより、鉄心３を
同時成形したコイル枠６が成形される。この場合、第１
の金型１により端子台部４を成形し、第１の金型１に対
して成形面１５の深さの異なる複数種類の第２の金型２
を用意したため、たとえばワット数に応じて径の異なる
複数のコイル枠６を製造する場合に第１の金型１を共用
することができる。したがって、金型種類が減り、たと
えば３種類のコイル枠６を製造する場合４種類の金型で
よくなり、金型経費が節減できるとともに、端子台部４
の端子位置が共通になるため端子接続の自動化が容易に
なり、またコイル枠６の幅および軸方向長さが同一とな
るため蛍光等安定器の製造や器具組み込み等電磁装置の
組立の自動化が容易になる。さらに金型の製作が複雑に
なる端子台部４を第１の金型１に形成したため、第２の
金型２の製作が容易になり全体として製作を効率化で
き、さらに一台の成形機で数種のコイル枠６を製造でき
るので成形機の効率もよい。According to this embodiment, the first metal mold 1 and the second metal mold 2 are put together and the iron core 3 is arranged inside, so that the coil frame 6 in which the iron core 3 is simultaneously molded is molded. In this case, the first
The terminal block portion 4 is molded by the first mold 1, and a plurality of types of second molds 2 having different molding surface 15 depths with respect to the first mold 1 are formed.
Thus, the first mold 1 can be shared when, for example, a plurality of coil frames 6 having different diameters are manufactured according to the wattage. Therefore, the number of types of dies is reduced. For example, when three types of coil frames 6 are manufactured, only four types of dies are required, and the die cost can be reduced and the terminal block portion 4 can be manufactured.
Since the terminal positions are common, automation of the terminal connection is facilitated, and since the width and axial length of the coil frame 6 are the same, the manufacture of fluorescent ballasts and the assembly of electromagnetic devices such as device assembly can be automated. It will be easier. Furthermore, since the terminal block portion 4 that complicates the mold production is formed on the first mold 1, the second mold 2 can be easily manufactured, and the manufacturing efficiency can be improved as a whole. Since several types of coil frames 6 can be manufactured by using, the efficiency of the molding machine is also high.
前記実施例は、鉄心３を同時成形する例であったが、鉄
心３の代わりに、中型（図示せず）を第１の金型１と第
２の金型２との間に挿入して、コイル枠６の中空部を形
成することによりコイル枠６のみを成形してもよい。こ
の場合、第２の金型２の成形面１５の深さに対応して厚
さの異なる中型を選択し適用する。In the above-described embodiment, the iron core 3 was simultaneously molded. However, instead of the iron core 3, a middle mold (not shown) is inserted between the first mold 1 and the second mold 2. Alternatively, only the coil frame 6 may be molded by forming the hollow portion of the coil frame 6. In this case, a middle mold having a different thickness is selected and applied according to the depth of the molding surface 15 of the second mold 2.
なお、端子台部４の端子８を挿着するスリット９は軸方
向に形成されているが、径方向に形成されるものであっ
てもよい。この場合は、サイドコアが不要になる。The slit 9 into which the terminal 8 of the terminal base portion 4 is inserted is formed in the axial direction, but may be formed in the radial direction. In this case, the side core becomes unnecessary.
請求項(1)のコイル枠の製造方法は、第１の金型により
端子台部を成形し、第１金型に対して成形面の深さの異
なる複数種類の第２の金型を用意したため、径の異なる
複数のコイル枠を製造する場合に第１の金型を共用する
ことができる。したがって、金型種類が減り、金型経費
が節減できるとともに、端子台部の端子位置が共通にな
るため端子接続の自動化が容易になり、またコイル枠の
幅および軸方向長さが同一となるため電磁装置の組立の
自動化が容易になる。さらに金型の製作が複雑になる端
子台部を第１の金型に形成したため、第２の金型の製作
が容易になり全体として製作を効率化でき、さらに一台
の成形機で数種のコイル枠を製造できるので成形機の効
率もよいという効果がある。In the method for manufacturing a coil frame according to claim (1), the terminal block portion is molded by the first mold, and a plurality of types of second molds having different molding surface depths with respect to the first mold are prepared. Therefore, the first mold can be shared when manufacturing a plurality of coil frames having different diameters. Therefore, the number of molds can be reduced, the mold cost can be reduced, and the terminal positions of the terminal block are common, which facilitates automation of terminal connection, and the width and axial length of the coil frame are the same. Therefore, the assembly of the electromagnetic device can be easily automated. Furthermore, since the terminal block part, which complicates the manufacturing of the mold, is formed on the first mold, the manufacturing of the second mold is easy and the manufacturing efficiency can be improved as a whole. Since the coil frame can be manufactured, the effect of the molding machine is high.
請求項(2)のコイル枠の製造方法は、請求項(1)の前記中
型に代えて、同時成形用の鉄心を用い、前記鉄心の積層
方向が前記第２の金型の成形面の深さ方向となるように
したものであるため、鉄心を同時成形した径の異なるコ
イル枠を製造することができる。The method for manufacturing a coil frame according to claim (2) uses an iron core for simultaneous molding instead of the middle mold according to claim (1), and the stacking direction of the iron core is the depth of the molding surface of the second mold. Since it is arranged in the vertical direction, it is possible to manufacture coil frames with different diameters, which are obtained by simultaneously molding the iron core.
第１図はこの発明の一実施例の金型の断面図、第２図は
コイル枠の径の大きさの異なる数種類の金型例の断面
図、第３図は安定器鉄心の分解斜視図、第４図はＴ字形
鉄心を同時成形したコイル枠の斜視図、第５図は安定器
の取付板の斜視図、第６図は蛍光灯安定器の斜視図、第
７図は従来例を説明する鉄心の平面図、第８図はその鉄
心を用いた蛍光灯安定器の斜視図、第９図は従来例を説
明する他の鉄心の平面図、第１０図はその鉄心を用いた
蛍光灯安定器の斜視図である。 １……第１の金型、２……第２の金型、３……鉄心、４
……端子台部、５……フランジ、６……コイル枠、15…
…成形面FIG. 1 is a cross-sectional view of a mold of an embodiment of the present invention, FIG. 2 is a cross-sectional view of several kinds of molds having different coil frame diameters, and FIG. 3 is an exploded perspective view of a ballast iron core. , FIG. 4 is a perspective view of a coil frame in which a T-shaped iron core is simultaneously formed, FIG. 5 is a perspective view of a mounting plate of a ballast, FIG. 6 is a perspective view of a fluorescent lamp ballast, and FIG. 7 is a conventional example. FIG. 8 is a plan view of an iron core to be described, FIG. 8 is a perspective view of a fluorescent lamp ballast using the iron core, FIG. 9 is a plan view of another iron core for explaining a conventional example, and FIG. 10 is a fluorescence using the iron core. It is a perspective view of a light ballast. 1 ... First mold, 2 ... Second mold, 3 ... Iron core, 4
...... Terminal block, 5 ... Flange, 6 ... Coil frame, 15 ...
… Molding surface
Claims (2)
記端子台部を含む外周面の一部を成形する第１の金型
と、この第１の金型に個別に合わせられて前記コイル枠
の外周面の残部を成形する第２の金型と、前記コイル枠
の中空部を成形する中型とにより、コイル枠を成形する
コイル枠の製造方法であって、前記第２の金型は前記コ
イル枠の径の大きさに応じて成形面の深さが異なる複数
種類からなり、前記中型は前記第２の金型に対応して複
数種類有し、前記第１の金型に合わせられる前記第２の
金型および前記中型を、前記コイル枠の径の大きさに応
じて選択することを特徴とするコイル枠の製造方法。1. A first mold for molding a part of an outer peripheral surface of a coil frame having a terminal block portion on a flange, the coil frame being individually fitted to the first mold. A method for manufacturing a coil frame for molding a coil frame by a second mold for molding the remaining portion of the outer peripheral surface of the frame and a middle mold for molding the hollow portion of the coil frame, wherein the second mold is The coil frame is made of a plurality of types having different molding surface depths depending on the diameter of the coil frame, and the middle die has a plurality of types corresponding to the second die and is adapted to the first die. A method for manufacturing a coil frame, wherein the second mold and the middle mold are selected according to the diameter of the coil frame.
い、前記鉄心の積層方向が前記第２の金型の成形面の深
さ方向となるようにした請求項(1)記載のコイル枠の製
造方法。2. An iron core for simultaneous molding is used in place of the middle die, and the stacking direction of the iron core is in the depth direction of the molding surface of the second mold. Coil frame manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137422A JPH0652694B2 (en) | 1990-05-28 | 1990-05-28 | Coil frame manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137422A JPH0652694B2 (en) | 1990-05-28 | 1990-05-28 | Coil frame manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0430509A JPH0430509A (en) | 1992-02-03 |
| JPH0652694B2 true JPH0652694B2 (en) | 1994-07-06 |
Family
ID=15198262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137422A Expired - Lifetime JPH0652694B2 (en) | 1990-05-28 | 1990-05-28 | Coil frame manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652694B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07272954A (en) * | 1994-03-31 | 1995-10-20 | Matsushita Electric Ind Co Ltd | Mold transformer |
| US6464696B1 (en) | 1999-02-26 | 2002-10-15 | Olympus Optical Co., Ltd. | Electrical surgical operating apparatus |
| JP5397339B2 (en) * | 2010-07-22 | 2014-01-22 | 株式会社豊田自動織機 | Resin molding method for induction equipment |
-
1990
- 1990-05-28 JP JP2137422A patent/JPH0652694B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0430509A (en) | 1992-02-03 |
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