JPH0141193Y2 - - Google Patents
Info
- Publication number
- JPH0141193Y2 JPH0141193Y2 JP1985092975U JP9297585U JPH0141193Y2 JP H0141193 Y2 JPH0141193 Y2 JP H0141193Y2 JP 1985092975 U JP1985092975 U JP 1985092975U JP 9297585 U JP9297585 U JP 9297585U JP H0141193 Y2 JPH0141193 Y2 JP H0141193Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- shaft
- divided
- heating
- stepped
- 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
- 239000004020 conductor Substances 0.000 claims description 100
- 238000010438 heat treatment Methods 0.000 claims description 65
- 230000006698 induction Effects 0.000 claims description 18
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- General Induction Heating (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は段付き軸の表面加熱用誘導加熱コイル
に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an induction heating coil for heating the surface of a stepped shaft.
（従来の技術）
従来から段付き軸の軸部表面に焼入れ、焼戻し
等熱処理を施すために誘導加熱する場合、軸部と
段部との接続部は強度を必要とするので熱処理範
囲に含まれている。従つて、使用される誘導加熱
コイルは軸部と同時に段部をも加熱可能な形状を
具えている。これを第２図ａおよびｂに示す。(Prior art) Conventionally, when induction heating is applied to the shaft surface of a stepped shaft to perform heat treatment such as hardening or tempering, the connection between the shaft and the step requires strength, so it is not included in the heat treatment range. ing. Therefore, the induction heating coil used has a shape that can heat both the shaft and the step. This is shown in Figures 2a and b.
図において、１０として示す従来誘導加熱コイ
ルは段付き軸W′の軸線Ｏに対し180゜隔てた軸部
Ws′表面に沿つてそれぞれ平行する軸部加熱導体
１１と１２、および当該軸部加熱導体１１，１２
それぞれの一端に接続し、上記軸部Ws′に続く段
部Wd′の所定周角度範囲…例えば180゜…に対向す
る段部加熱導体１３で構成されており、二重斜線
で示す被加熱部パターンｈを得るようにしてい
る。 In the figure, the conventional induction heating coil shown as 10 has a shaft portion spaced 180° from the axis O of the stepped shaft W′.
Shaft heating conductors 11 and 12 parallel to each other along the Ws' surface, and the shaft heating conductors 11, 12
It is connected to one end of each of the stepped portion heating conductors 13 and is configured to face a predetermined circumferential angle range, for example, 180°, of the stepped portion Wd' following the shaft portion Ws', and the heated portion shown by double hatching. I am trying to obtain pattern h.
（従来技術に存する問題点）
上記従来誘導加熱コイル１０は段差が比較的小
…例えば４〜５mm程度…の段付き軸W′の段部
Wd′に、比較的小範囲の被加熱部を得る場合には
最適である。(Problems existing in the prior art) The conventional induction heating coil 10 described above has a relatively small step, for example, about 4 to 5 mm, at the stepped portion of the stepped shaft W'.
It is most suitable for obtaining a relatively small area to be heated in Wd'.
ところが、第２図Ｃに示されるような、段差が
大きい…例えば８〜15mm…段付き軸Ｗの段部Wd
に広い範囲にわたる被加熱部を得ようとする場
合、従来誘導加熱コイル１０を使用しても、段部
加熱導体１３が軸部Wsの付け根のみに対向して
いるだけであるため、図の左側に描かれる線イで
囲まれる表面側のみが被加熱部範囲ｈとなり、斜
め破線で示される如く段部Wdの大半が被加熱部
範囲には含まれなくなる。 However, as shown in FIG. 2C, the step Wd of the stepped shaft W is large...for example, 8 to 15 mm...
When trying to obtain a heated part over a wide range, even if the conventional induction heating coil 10 is used, the stepped part heating conductor 13 only faces the base of the shaft part Ws, so the left side of the figure Only the surface side surrounded by line A drawn in is the heated part range h, and most of the stepped part Wd is not included in the heated part range as shown by the diagonal broken line.
また、本考案を完成するに至る過程で試作した
ものであるが、従来誘導加熱コイル１０の段部加
熱導体１３を、図の右側に１３′として示す如く、
円弧内周先端が二股に分岐し、分岐した開口内に
段部Wdの稜線を内包する形状に変えた変形誘導
加熱コイル１００を使用した加熱実験結果では、
三重斜線部ロとして示す稜線部近傍がオーバーヒ
ートし、被加熱部の均熱加熱は得られなかつた。 In addition, although this was a prototype made in the process of completing the present invention, the step heating conductor 13 of the conventional induction heating coil 10 is as shown as 13' on the right side of the figure.
The results of a heating experiment using a modified induction heating coil 100 in which the tip of the inner periphery of the arc is bifurcated and the ridgeline of the stepped portion Wd is included within the branched opening are as follows.
The vicinity of the ridge line shown as the triple hatched area B overheated, and uniform heating of the heated area could not be obtained.
（考案の目的）
本考案は、段付き軸表面加熱用の従来誘導加熱
コイルに存する上述した問題点を解決するために
なされたもので、段差が大きい段付き軸を軸部の
表面と当該軸部に続く段部の広い範囲にわたる表
面とを同時に均熱加熱可能な誘導加熱コイルを提
供することを目的とする。(Purpose of the invention) The present invention was made to solve the above-mentioned problems of conventional induction heating coils for heating the surface of a stepped shaft. An object of the present invention is to provide an induction heating coil capable of uniformly heating a wide range of the surface of a step section following the step section at the same time.
（考案の構成）
本考案の構成は、
(1) 軸回転する段付き軸に軸線に対し180゜隔てた
軸部表面に沿つてそれぞれ平行する軸部加熱導
体および当該軸部加熱導体それぞれの一端に接
続して上記軸部に続く段部の所定周角度範囲に
対向する段部加熱導体を具えたコイルにおい
て、
(2) 上記段部加熱導体を三分割し、
(3) いずれか一方の軸部加熱導体に一端が接続さ
れる第１の分割導体およびいずれか他方の軸部
加熱導体に一端が接続される第３の分割導体そ
れぞれは軸部と段部の段差壁とが交わる隅部に
対向する円弧とし、
(4) 第２の分割導体は段部の上記段差壁に続く段
側壁に対向する円弧とし、
(5) 上記第１の分割導体の他端と第２の分割導体
の一端とを段付き軸の軸線に平行な連絡導体で
接続するとともに、両分割導体の累積円弧長さ
が180゜を超えた段部の所定周角度範囲を囲繞す
る如く構成し、
(6) 上記第３の分割導体は上記180゜を超えた位置
にある第２の分割導体の他端と他方の軸部加熱
導体の一端とがなす円弧長さに等しく形成する
とともに、その他端を段付き軸の軸線に平行な
連絡導体で上記第２の分割導体の他端に接続す
る如く構成してなる
ことを特徴とする誘導加熱コイルにある。(Structure of the invention) The structure of the invention is as follows: (1) Shaft heating conductors parallel to each other along the surface of the shaft spaced apart by 180 degrees from the axis on a stepped shaft that rotates, and one end of each of the shaft heating conductors. (2) dividing the step heating conductor into three, and (3) connecting either shaft A first divided conductor whose one end is connected to the other shaft heating conductor and a third divided conductor whose one end is connected to the other shaft heating conductor are located at the corner where the shaft and the step wall of the step intersect. (4) The second segmented conductor is an arc that faces the step side wall following the step wall of the step portion; (5) The other end of the first segmented conductor and one end of the second segmented conductor connected by a connecting conductor parallel to the axis of the stepped shaft, and configured so as to surround a predetermined circumferential angular range of the stepped portion where the cumulative arc length of both divided conductors exceeds 180°; The divided conductor No. 3 is formed to have an arc length equal to the length of the arc formed by the other end of the second divided conductor located at a position exceeding 180° and one end of the other shaft heating conductor, and the other end is formed by forming the other end of the stepped shaft. The induction heating coil is characterized in that it is configured to be connected to the other end of the second divided conductor by a connecting conductor parallel to the axis.
（考案の作用）
本考案は、段付き軸の段部に対向する段部加熱
導体を３分割して所定の配置をとらしめて接続す
ることにより、段差壁と隅部との加熱は主として
第１の分割導体および第３の分割導体それぞれか
ら発生する磁束に負担させ、また段側壁の加熱は
主として第２の分割導体から発生する磁束に負担
させる如く個別加熱とするとともに、段部稜線部
近傍は第２の分割導体および第３の分割導体それ
ぞれから発生する互いに逆向きの磁束の相殺エリ
アに位置せしめる如くして加熱を抑制しつつ第１
の分割導体・第２の分割導体間および第２の分割
導体・第３の分割導体間それぞれ接続する連絡導
体から発生する磁束を透過せしめて加熱を補足さ
せる作用を発揮する。(Function of the invention) The present invention divides the step heating conductor facing the step of the stepped shaft into three parts and connects them in a predetermined arrangement, so that the heating of the step wall and the corner is mainly achieved by the first heating conductor. The magnetic flux generated from each of the divided conductors and the third divided conductor is applied to the heating, and the heating of the step side wall is carried out individually so that the magnetic flux generated from the second divided conductor is borne. The second divided conductor and the third divided conductor are positioned in the canceling area of mutually opposite magnetic fluxes generated from each of the first divided conductor and the first divided conductor while suppressing heating.
The magnetic flux generated from the connecting conductors connected between the divided conductor and the second divided conductor and between the second divided conductor and the third divided conductor is allowed to pass therethrough to supplement heating.
（実施例）
本考案をその一実施例を示す第１図ａ〜ｅに従
つて以下に詳述する。(Example) The present invention will be described in detail below with reference to FIGS. 1a to 1e showing one example thereof.
第１図ａは本考案誘導加熱コイルＣの回路構成
を示す斜視図で、１および２それぞれは段付き軸
Ｗの軸線に対し180゜隔てた軸部Ws表面に沿つて
それぞれ平行する軸部加熱導体である。当該軸部
加熱導体１および２それぞれの一端に連接され段
部Wdを加熱する段部加熱導体３は、本考案では
３ａ，３ｂおよび３ｃとして示す３分割された分
割導体からなる。 FIG. 1a is a perspective view showing the circuit configuration of the induction heating coil C of the present invention, in which 1 and 2 are respectively parallel to the shaft portion heating along the surface of the shaft portion Ws separated by 180° from the axis of the stepped shaft W. It is a conductor. The step heating conductor 3 connected to one end of each of the shaft heating conductors 1 and 2 and heating the step Wd is composed of three divided conductors shown as 3a, 3b and 3c in the present invention.
一方の軸部加熱導体１に一方端が直接接続する
第１の分割導体３ａは、第１図ｂに示す如く、円
弧内周先端が軸部Wsと段部Wdの段差壁Ｌとが交
わる隅部Ｍに対向する如く形成され、図示時計廻
りで段部Wdの例えば周角度120゜にわたる範囲に
対し所定間隙をへだてて囲繞可能な円弧をなして
いる。 As shown in FIG. 1b, the first divided conductor 3a, whose one end is directly connected to the other shaft heating conductor 1, has an arcuate inner circumferential tip at the corner where the shaft portion Ws and the step wall L of the step portion Wd intersect. It is formed so as to face the portion M, and forms an arc that can surround a range having a circumferential angle of, for example, 120° of the step portion Wd clockwise in the drawing, with a predetermined gap therebetween.
他方の軸部加熱導体２に一方端が直接接続する
第３の分割導体３ｃは、第１図ｄに示す如く、上
記第１の分割導体３ａと同様に、円弧内周先端が
軸部Wsと段部Wdの段差壁Ｌとが交わる隅部Ｍに
対向する如く形成され、図示時計廻りで段部Wd
の例えば周角度50゜にわたる範囲に対し所定間隙
をへだてて囲繞可能な円弧をなしている。 The third divided conductor 3c, whose one end is directly connected to the other shaft heating conductor 2, has its arcuate inner peripheral tip connected to the shaft Ws, similar to the first divided conductor 3a, as shown in FIG. 1d. It is formed so as to face the corner M where the step wall L of the step Wd intersects, and the step Wd
For example, it forms an arc that can be surrounded by a predetermined gap over a range having a circumferential angle of 50°.
第２の分割導体３ｂは第１図ｃに示す如く、円
弧内周先端が段部Wdの上記段差壁Ｌに続く段側
壁Ｎに対向する如く形成され、段部Wdの例えば
周角度110゜にわたる範囲に対し所定間隙をへだて
て囲繞可能な円弧をなしている。 As shown in FIG. 1c, the second divided conductor 3b is formed such that the tip of the inner circumference of the arc faces the step side wall N following the step wall L of the step Wd, and covers a circumferential angle of, for example, 110° of the step Wd. It forms an arc that can be surrounded by a predetermined gap with respect to the range.
而して、当該第２の分割導体３ｂの一方端は上
記第１の分割導体３ａの他方端と４として示す段
付き軸Ｗの軸線に平行な連絡導体で接続され、他
方端は上記第３の分割導体３ｃの他方端と５とし
て示す段付き軸Ｗの軸線に平行な連絡導体で接続
されている。 One end of the second divided conductor 3b is connected to the other end of the first divided conductor 3a by a connecting conductor parallel to the axis of the stepped shaft W shown as 4, and the other end is connected to the other end of the first divided conductor 3a by a connecting conductor parallel to the axis of the stepped shaft W shown as 4 The other end of the divided conductor 3c is connected to the other end of the divided conductor 3c by a connecting conductor parallel to the axis of the stepped shaft W shown as 5.
従つて、段部Wdは本実施では、一方半周側の
180゜にわたる範囲を上記第１の分割導体３ａと第
２の分割導体３ｂの第１の分割導体３ａに近接す
る側にあたるほぼ一方半部とにより、対向角度範
囲と対向位置とが異なる一連の導体により囲繞さ
れ、他方半周側は上記一方半周側囲繞部分に続く
50゜にわたる範囲を上記第２の分割導体３ｂの残
余他方半部と第３の分割導体３ｃとにより、同一
対向角度範囲を対向位置が異なる一連の導体によ
り囲繞されていることとなる。 Therefore, in this implementation, the step Wd is on one half circumference side.
A series of conductors having different opposing angle ranges and opposing positions are formed by forming a range spanning 180° by the first divided conductor 3a and approximately one half of the second divided conductor 3b that is close to the first divided conductor 3a. The other half-circumference side continues to the above-mentioned one half-circumference side surrounding part.
The remaining half of the second divided conductor 3b and the third divided conductor 3c extend over a range of 50 degrees, so that the same opposing angle range is surrounded by a series of conductors having different facing positions.
以上の構成からなる誘導加熱コイルＣを用いて
軸回転中の段付き軸Ｗを誘導加熱すれば、段部
Wdにおける段差壁Ｌと隅部Ｍとは、主としてこ
れに対向する第１の分割導体３ａおよび第３の分
割導体３ｃにより加熱され、また段側壁Ｎは主と
してこれに対向する第２の分割導体により加熱さ
れる。これに反して、段部Wdの稜線部近傍は、
第１図ｄに見られるように、互いに逆向きの電流
が流れる第２の分割導体および第３の分割導体そ
れぞれから発生する互いに逆向きの磁束の相殺エ
リアに位置することとなり、上記両分割導体それ
ぞれによる加熱作用は直接受けず、オーバヒート
することはない。而して当該稜線部近傍は両連絡
導体４および５の加熱作用と上記第１の分割導体
３ａと第２の分割導体の一方半部からの比較的影
響力の薄い磁束の作用ならびに熱伝導により昇温
する。かくして、段差の大きい段部Wdには広い
範囲にわたり第１図ｅにｈとして示す範囲が均熱
加熱されることとなる。 If the induction heating coil C having the above configuration is used to inductively heat the stepped shaft W while the shaft is rotating, the stepped portion
The step wall L and the corner M at Wd are heated mainly by the first divided conductor 3a and the third divided conductor 3c facing them, and the step side wall N is heated mainly by the second divided conductor facing thereto. heated. On the other hand, near the ridgeline of the step Wd,
As shown in FIG. 1d, the second divided conductor and the third divided conductor, through which currents flow in opposite directions, are located in canceling areas of mutually opposite magnetic fluxes, and both of the aforementioned divided conductors It is not directly affected by the heating effect of each, so it will not overheat. The vicinity of the ridgeline is heated by the heating action of both connecting conductors 4 and 5, the action of relatively weak magnetic flux from one half of the first divided conductor 3a and the second divided conductor, and heat conduction. Increase temperature. In this way, the wide range of the stepped portion Wd having a large step difference is uniformly heated over a wide range as shown by h in FIG. 1e.
上記実施例では、段部加熱導体３ａ，３ｂ，３
ｃそれぞれを120゜，110゜，50゜の周角度範囲に対応
する円弧に３分割のうえ、50゜の周角度範囲で３
ｂ，３ｃを逆行させて段付き軸の軸線に180゜へだ
てて平行する軸部加熱導体１，２それぞれに接続
する例を挙げて説明したが、３分割する円弧の周
角度範囲は上記実施例に限定されるものではな
い。 In the above embodiment, the step heating conductors 3a, 3b, 3
Divide each c into three arcs corresponding to circumferential angle ranges of 120°, 110°, and 50°, and then divide into three arcs in a circumferential angle range of 50°.
The explanation has been given using an example in which the shaft heating conductors 1 and 2 are connected to the shaft heating conductors 1 and 2 which are parallel to the axis of the stepped shaft by reversing the steps b and 3c, but the circumferential angle range of the arc divided into three is the same as in the above example. It is not limited to.
即ち、段部Wdの分割導体それぞれが対向する
部位の後背熱伝導質量、導体形状と対向する部位
との位置関係に起因する磁束誘引性（＝導体の電
流が主として何処を流れるか、および発生する磁
束の方向性）、投入電力、周波数、加熱目標温度
その他の諸元により、段部Wdの均熱が得られる
ように設計されればよく、その円弧の周角度範囲
を問うものではない。 In other words, the magnetic flux attractivity (= where the current in the conductor mainly flows and the generated It is sufficient that the design is such that uniform heating of the stepped portion Wd can be obtained depending on the specifications such as the directionality of magnetic flux), input power, frequency, heating target temperature, etc., and the circumferential angle range of the arc does not matter.
（考案の効果）
本考案の実施により、段差が大きい形状の段付
き軸を、広い範囲にわたる段部を軸部とととに表
面均一加熱可能とするので、接続部の機械的性質
を飛躍的に向上した段付き軸が得られることとな
つて、顕著な効果を齊す。(Effects of the invention) By implementing the invention, it is possible to uniformly heat the surface of a stepped shaft with a large step shape over a wide range between the shaft parts, thereby dramatically improving the mechanical properties of the connection part. As a result, a stepped shaft with improved characteristics can be obtained, resulting in a remarkable effect.
第１図ａは本考案の一実施例誘導加熱コイルの
回路構成を示す斜視図、第１図ｂ，ｃおよびｄは
それぞれ第１図ａにおけるＸ−Ｘ線，Ｙ−Ｙ線お
よびＺ−Ｚ線における実施例誘導加熱コイルの断
面図、第１図ｅは本考案により得られる被加熱部
範囲パターンを示す断面図、第２図ａおよびｂは
それぞれ従来誘導加熱コイルの斜視図および断面
正面図、第２図ｃは従来誘導加熱コイルおよびそ
の変形コイルに存する問題点を示す断面正面図で
ある。
Ｃ……誘導加熱コイル、Ｗ……段付き軸、Ws
……軸部、Wd……段部、Ｌ……段差壁、Ｍ……
隅部、Ｎ……段側壁、Ｏ……軸線、１，２……軸
部加熱導体、３……段部加熱導体、３ａ……第１
の分割導体、３ｂ……第２の分割導体、３ｃ……
第３の分割導体、４，５……連絡導体。
FIG. 1a is a perspective view showing the circuit configuration of an induction heating coil according to an embodiment of the present invention, and FIGS. 1b, c, and d are X-X, Y-Y, and Z-Z lines in FIG. 1a, respectively. FIG. 1e is a cross-sectional view showing the heated area pattern obtained by the present invention, and FIGS. 2a and b are a perspective view and a cross-sectional front view of a conventional induction heating coil, respectively. , FIG. 2c is a cross-sectional front view showing problems existing in the conventional induction heating coil and its modified coil. C...Induction heating coil, W...Stepped shaft, Ws
...Shaft part, Wd...Step part, L...Step wall, M...
Corner, N... Step side wall, O... Axis line, 1, 2... Shaft heating conductor, 3... Step heating conductor, 3a... First
divided conductor, 3b... second divided conductor, 3c...
Third divided conductor, 4, 5...connection conductor.
Claims (1)
部表面に沿つてそれぞれ平行する軸部加熱導体お
よび当該軸部加熱導体それぞれの一端に接続して
上記軸部に続く段部の所定周角度範囲に対向する
段部加熱導体を具えたコイルにおいて、上記段部
加熱導体を三分割し、いずれか一方の軸部加熱導
体に一端が接続される第１の分割導体およびいず
れか他方の軸部加熱導体に一端が接続される第３
の分割導体それぞれは軸部と段部の段差壁とが交
わる隅部に対向する円弧とし、第２の分割導体は
段部の上記段差壁に続く段側壁に対向する円弧と
し、上記第１の分割導体の他端と第２の分割導体
の一端とを段付き軸の軸線に平行な連絡導体で接
続するとともに、両分割導体の累積円弧長さが
180゜を超えた段部の所定周角度範囲を囲繞する如
く構成し、上記第３の分割導体は上記180゜を超え
た位置にある第２の分割導体の他端と他方の軸部
加熱導体の一端とがなす円弧長さに等しく形成す
るとともに、その他端を段付き軸の軸線に平行な
連絡導体で上記第２の分割導体の他端に接続する
如く構成してなることを特徴とする誘導加熱コイ
ル。 Shaft heating conductors that are parallel to each other along the shaft surface separated by 180° from the axis of the stepped shaft that rotates, and a predetermined circumference of the stepped portion that is connected to one end of each of the shaft heating conductors and continues to the shaft. In a coil equipped with stepped heating conductors facing each other in an angular range, the stepped heating conductor is divided into three parts, and a first divided conductor whose one end is connected to one of the shaft heating conductors and one of the other shafts is divided into three parts. The third part has one end connected to the heating conductor.
Each of the divided conductors is an arc facing the corner where the shaft portion and the step wall of the step portion intersect, and the second divided conductor is an arc facing the step side wall following the step wall of the step portion. The other end of the divided conductor and one end of the second divided conductor are connected by a connecting conductor parallel to the axis of the stepped shaft, and the cumulative arc length of both divided conductors is
The third divided conductor is configured to surround a predetermined circumferential angle range of the stepped portion exceeding 180°, and the third divided conductor is connected to the other end of the second divided conductor located at a position exceeding 180° and the other shaft heating conductor. The conductor is formed to have a length equal to the arc length formed by the stepped shaft, and the other end is connected to the other end of the second divided conductor by a connecting conductor parallel to the axis of the stepped shaft. induction heating coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985092975U JPH0141193Y2 (en) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985092975U JPH0141193Y2 (en) | 1985-06-21 | 1985-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS622183U JPS622183U (en) | 1987-01-08 |
| JPH0141193Y2 true JPH0141193Y2 (en) | 1989-12-06 |
Family
ID=30650241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985092975U Expired JPH0141193Y2 (en) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0141193Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5282997B2 (en) * | 2008-05-09 | 2013-09-04 | Ｎｔｎ株式会社 | High frequency heating coil |
| JP5489325B2 (en) * | 2009-07-16 | 2014-05-14 | 富士電子工業株式会社 | High frequency induction heating method and high frequency induction heating apparatus |
-
1985
- 1985-06-21 JP JP1985092975U patent/JPH0141193Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622183U (en) | 1987-01-08 |
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