JPH0430509A - Manufacture of coil bobbin - Google Patents
Manufacture of coil bobbinInfo
- Publication number
- JPH0430509A JPH0430509A JP2137422A JP13742290A JPH0430509A JP H0430509 A JPH0430509 A JP H0430509A JP 2137422 A JP2137422 A JP 2137422A JP 13742290 A JP13742290 A JP 13742290A JP H0430509 A JPH0430509 A JP H0430509A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- coil frame
- molding
- coil
- molds
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000000465 moulding Methods 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 238000003475 lamination Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 230000004323 axial length Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Abstract
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。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a coil frame applied to electromagnetic devices such as ballasts for discharge lamps such as fluorescent lamps.
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。Normally, a fluorescent lamp ballast is designed so that the iron core and the coil frame around which the coil is wound are matched to the wattage of the lamp, such as 10W, 15W, or 20W.
たとえば、第７図および第８１′；２Ｉ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 81'; 2I is
A pair of E-shaped iron cores 50 and 51 are combined and passed through a coil frame 53 around which a coil 52 is wound, and then passed through the middle leg 53a of the coil frame 53. 54 is a terminal block portion formed on the flange of the coil frame 53. If this electromagnetic device is applied to a fluorescent lamp ballast and corresponds to the wattage, it is conceivable to make the height different as shown in the imaginary line.
また第９図および第１０図の電磁装置ば、コ字形鉄心５
６の内側に丁字形鉄心５７を組み込んだもので、コイル
５２をＳ装したコイル枠５３を丁字形鉄心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
。In addition, in the electromagnetic device shown in FIGS. 9 and 10, the U-shaped iron core 5
A coil frame 53 in which the coil 52 is S-mounted is passed through the T-shaped core 57.
It is attached to a mounting plate 58. In this case as well, when corresponding to the wattage, the depth is varied as shown in the imaginary line.
これらの″ｒ！ｉ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 "r!i" magnetic devices, the mold can be shared even if the iron core has a different wattage.
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 special molds were used for coil frames with different diameters, the number of mold types increases, and when the production volume is small, mold costs become a burden.
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
を捷供することである。Therefore, an object of the present invention is to provide a method for manufacturing a coil frame that allows a mold to be used in common for manufacturing coil frames of 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の金型に対応じて複数種類有し、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。The method for manufacturing a coil frame according to claim (1) includes: a first mold for molding a part of the outer circumferential surface including the terminal block portion of a coil frame having a terminal block portion on a flange; a second molding section for forming the remainder of the outer circumferential surface of the coil frame;
A method for manufacturing a coil frame in which a coil frame is formed using a mold and a medium mold for forming a hollow part of the coil frame, the method comprising:
The second mold has a plurality of types having different molding surface depths depending on the diameter of the coil frame, the middle mold has a plurality of types corresponding to the second mold, and the middle mold has a plurality of types corresponding to the second mold. The second mold and the middle mold that match the first mold are selected depending on 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。The method for manufacturing a coil frame according to claim (2) according to claim (1) uses an iron core for simultaneous molding instead of the medium size,
The stacking direction of the iron core is the depth direction of the molding surface of the second mold.
請求項（１１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？！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−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 for manufacturing a coil frame according to claim 11, the coil frame is molded by combining a first mold and a second mold, arranging a middle mold inside, and injecting resin. In this case, the terminal block part was manufactured using a first mold, and multiple types of second molds with different molding surface depths were prepared for the first mold, so multiple coil frames with different diameters were manufactured. The first mold can be shared during manufacturing, which reduces the number of mold types and reduces mold costs, and also facilitates automation of terminal connections because the terminal positions of the terminal block are shared. In addition, the width and axial length of the coil frame are the same, making it easier to automate the assembly of electromagnetic devices.Furthermore, the terminal block part, which makes mold manufacturing complicated, is formed in the first mold. Therefore, the production of the second mold becomes easy and the production as a whole can be made more efficient.Furthermore, since several types of coil frames can be produced with one molding machine, the efficiency of the molding machine is also improved.
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間
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 method for manufacturing a coil frame of claim (2), claim (2)
In place of the medium mold in 1), an iron core for simultaneous molding is used, and the stacking direction of the iron core is in the depth direction of the molding surface of the second mold, so that the iron core can be molded simultaneously. It is possible to manufacture coil frames with different molded diameters.
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 based on FIGS. 1 to 6. That is, this coil frame manufacturing method uses a first mold 1, a plurality of second molds 2, and a plurality of iron cores 3.
The coil frame 6 is molded, and the iron core 3 is molded at the same time.
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１ｌ１７
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ｊ！！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ｌ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。１０１１
は成形機のゲートノズルである。The first mold 1 molds a part of the outer peripheral surface including the terminal block part 4 of a coil frame 6 having the terminal block part 4 on the flange 5 as shown in FIG. The terminal block part 4 has 1l17 through which the end of the coil wire is passed.
and a slit 9 into which the terminal 8 (FIG. 6) is inserted.The end of the coil (not shown) wound around the coil frame 6 is inserted through the groove 7 into which the terminal 8 is inserted. ! It is to be soldered to the end. In this case, the groove 7 is formed by the first mold 1, and the slit 9 is formed by a side core (not shown) provided in the first mold l. Further, a mounting surface 12 for the iron core is formed when the iron core 3 is set in the first mold 1. 1011
is the gate nozzle 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ｆａｌないしＥｅｌはそれぞれ成形面１５の
深さの異する第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
ｌＯ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 part of the outer circumferential surface of the coil frame 6, and are mutually matched depending on the diameter of the coil frame 6. The depth of the molding surface 15 is different. That is, the second mold 2 that matches the first mold 1 is selected depending on the diameter of the coil frame 6. FAL to EEL in FIG. 2 are examples in which second molds 2a to 2C, each having a different molding surface 15 depth, and the first mold 1 are individually combined. Each second mold 2a to 2c
Since the depths of the molding surfaces 15 of the molding surfaces 15 differ, the position of the gate nozzle lO of the molding machine changes accordingly. 18
is the resin injection part.
複数の同時成形用の鉄心３は、第２の金型２に対応じて
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図に示すように丁字形でコ字形鉄心１３内に挿
入される。The plurality of cores 3 for simultaneous molding have mutually different lamination thicknesses h1 to h3 corresponding to the second mold 2. This iron core 3 is placed on the mounting surface 12 of the first mold 1, and is housed within the molding surface 15 of the second mold 2 by aligning the second mold 2 with the first mold 1. , resin is injected around it and molded at the same time. 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 core 3 is inserted into the U-shaped 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１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ａ７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。Next, to explain the case of manufacturing the discharge lamp ballast shown in FIG. 5, the iron core 3 is placed on the mounting surface 12 of the first mold 1 shown in FIGS. Type 1 to 2nd
The metal mold 2 is molded together, and the iron core 3 is
are simultaneously molded to form a 1-il frame 6. This coil frame 6
A coil (not shown) is wound around the coil wire, and the end of the coil wire is passed through a7, and the terminal 8 is passed through the slit 9, and the insertion end of the terminal 8 and the end of the coil wire are connected by soldering.
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。This 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ｌ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、またコイル吟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ｉｆｆ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−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 mold 1 and the second mold 2 are combined and the iron core 3 is placed inside, thereby forming the coil frame 6 in which the iron core 3 is simultaneously molded. In this case, the first
The terminal block portion 4 is molded using a mold 1, and a plurality of types of second molds 2 having molding surfaces 15 of different depths are formed with respect to the first mold 1.
Since this is prepared, the first mold l can be shared, for example, when manufacturing a plurality of coil frames 6 having different diameters depending on the wattage. Therefore, the number of types of molds is reduced, and for example, when manufacturing three types of coil frames 6, only four types of molds are required.
Since the terminal positions are common, it is easy to automate the terminal connection, and since the width and axial length of the coil 6 are the same, it is possible to automate the production of fluorescent isostatic ballasts and the assembly of isoelectric iff devices incorporated into equipment. becomes easier. Furthermore, since the terminal block part 4, which complicates the manufacturing of the mold, is formed in the first mold 1, the manufacturing of the second mold 2 becomes easy and the overall manufacturing efficiency can be improved. Since several types of coil frames 6 can be manufactured using this method, the efficiency of the molding machine is also good.
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の深さに対応じて厚
さの異なる中型を選択し適用する。The above embodiment was an example in which the iron core 3 was molded at the same time, but instead of the iron core 3, a medium mold (not shown) was inserted between the first mold 1 and the second mold 2. , only the coil frame 6 may be molded by forming a hollow portion of the coil frame 6. In this case, medium molds with different thicknesses are selected and applied depending on 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。Although the slit 9 into which the terminal 8 of the terminal block portion 4 is inserted is formed in the axial direction, it 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
枠の輻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の金型番こ形成したため、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−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。The method for manufacturing a coil frame according to claim [1] includes molding the terminal block part using a first mold, and using a plurality of types of second molds having different molding surface depths for the first mold. Since it is prepared, the first mold can be used in common when manufacturing a plurality of coil frames having different diameters. Therefore, the number of mold types is reduced, reducing mold costs, and the terminal positions of the terminal block are common, making it easier to automate terminal connections, and the convergence and axial length of the coil frame are the same. This facilitates automation of assembly of electromagnetic devices. Furthermore, since the terminal block part, which is complicated to manufacture, is formed in the first mold, it is easier to manufacture the second mold, making the overall manufacturing more efficient. This method has the effect of increasing the efficiency of the molding machine, since it is possible to manufacture coil frames of approximately 200 mm.
請求項（２）のコイル枠の製造方法は、請求項＋１１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 medium mold according to claim +11, and the stacking direction of the iron core is the depth direction of the molding surface of the second mold. Therefore, it is possible to manufacture coil frames with different diameters in which the iron core is molded at the same time.
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図は丁字形鉄
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１Ｏ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
特許出願人 松下電工株式会社
第
図
第
図
第
図
へ２Fig. 1 is a cross-sectional view of a mold according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of several types of molds with different coil frame diameters, and Fig. 3 is an exploded perspective view of the ballast core. , Fig. 4 is a perspective view of a coil frame with a T-shaped core simultaneously formed, Fig. 5 is a perspective view of a ballast mounting plate, Fig. 6 is a perspective view of a fluorescent lamp ballast, and Fig. 7
The figure is a plan view of an iron core to explain a conventional example, 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 to explain a conventional example, and Fig. 1O is the same. FIG. 2 is a perspective view of a fluorescent lamp ballast using an iron core. DESCRIPTION OF SYMBOLS 1...First mold, 2...Second mold, 3...Iron core, 4...Terminal block part, 5...Flange, 6...Coil frame, 15...・Molding surface patent applicant Matsushita Electric Works Co., Ltd. Go to Figure 2
Claims (2)
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 the outer peripheral surface including the terminal block portion of a coil frame having a terminal block portion on the flange; A method for manufacturing a coil frame in which a coil frame is formed by a second mold that molds the remaining part of the outer peripheral surface and a middle mold that molds the hollow part of the coil frame, the second mold forming the remaining part of the coil frame. The medium mold has a plurality of types having different molding surface depths depending on the size of the diameter of the frame, the medium mold has a plurality of types corresponding to the second mold, and the medium mold has a plurality of types corresponding to the second mold, and the medium mold has a plurality of types corresponding to the second mold. A method for manufacturing a coil frame, characterized in that the second mold and the medium mold are selected depending on the diameter of the coil frame.
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) The coil frame according to claim (1), wherein an iron core for simultaneous molding is used in place of the intermediate mold, and the stacking direction of the iron core is the depth direction of the molding surface of the second mold. 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 true JPH0430509A (en) | 1992-02-03 |
| JPH0652694B2 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07272954A (en) * | 1994-03-31 | 1995-10-20 | Matsushita Electric Ind Co Ltd | Molded transformer |
| US6464696B1 (en) | 1999-02-26 | 2002-10-15 | Olympus Optical Co., Ltd. | Electrical surgical operating apparatus |
| JP2012028518A (en) * | 2010-07-22 | 2012-02-09 | Toyota Industries Corp | Resin molding method in induction apparatus |
-
1990
- 1990-05-28 JP JP2137422A patent/JPH0652694B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07272954A (en) * | 1994-03-31 | 1995-10-20 | Matsushita Electric Ind Co Ltd | Molded transformer |
| US6464696B1 (en) | 1999-02-26 | 2002-10-15 | Olympus Optical Co., Ltd. | Electrical surgical operating apparatus |
| JP2012028518A (en) * | 2010-07-22 | 2012-02-09 | Toyota Industries Corp | Resin molding method in induction apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0652694B2 (en) | 1994-07-06 |
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