JPS628441A - Molding of filament coil - Google Patents
Molding of filament coilInfo
- Publication number
- JPS628441A JPS628441A JP14602785A JP14602785A JPS628441A JP S628441 A JPS628441 A JP S628441A JP 14602785 A JP14602785 A JP 14602785A JP 14602785 A JP14602785 A JP 14602785A JP S628441 A JPS628441 A JP S628441A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- filament coil
- forming
- filament
- coil part
- 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
- 238000000465 moulding Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Electromagnets (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Resistance Heating (AREA)
- Wire Processing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はフィラメントコイルの成形方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for forming filament coils.
従来の技術
一般に、フィラメントコイルは、コイル部とその両端に
延びて形成さｎた両足部とからなり、コイル捲線機によ
りタングステン線材を芯線に巻き付け、所定の長さに切
断することにより得ている。Conventional technology Generally, a filament coil consists of a coil part and two legs extending from both ends of the coil part, and is obtained by winding a tungsten wire around a core wire using a coil winding machine and cutting it to a predetermined length. .
ところが、このようにして得られたフィラメントコイル
では、特に両足部のなす角度が一定しておらず、このた
めこのようなフィラメントコイルをリード線に取付けて
白熱電球を作った場合には、コイル部がリード線にねじ
れて取付けられて、フィラメントコイルが変形するとと
がらり、その結果所望する配光特性が得られないという
不具合がある。そこで、従来は次に述べるように、フイ
ラメントコイルに加熱成形処理を施して、白熱電球を完
成した際、所望する配光特性が得られるようにしている
。すなわち、従来は、第５図に示すように、タングステ
ン棒１を複数個のフィラメントコイル２のコイル部２１
Ｌ内に通したものを複数本用意し、第６図に示すように
、これらのコイル部を一対のタングステン成形治具３，
４の凹形の溝５．６内に入れかつそれらの両足部２ｂを
成形治具３，４間に挾み込むことによりフィラメントコ
イル・２を固定し、これを加熱炉内において水素ガス雰
囲気中で加熱処理して、フィラメントコイル２を成形し
ていた。However, in the filament coil obtained in this way, the angle formed by both legs is not constant, and for this reason, when such a filament coil is attached to a lead wire to make an incandescent light bulb, the coil part When the filament coil is twisted and attached to the lead wire and the filament coil is deformed, it becomes sharp, resulting in a problem that the desired light distribution characteristics cannot be obtained. Therefore, conventionally, as described below, the filament coil is subjected to heat molding treatment so that desired light distribution characteristics can be obtained when the incandescent light bulb is completed. That is, conventionally, as shown in FIG.
Prepare a plurality of tungsten coils passed through L, and as shown in FIG.
The filament coil 2 is fixed by placing the filament coil 2 into the concave groove 5.6 of 4 and sandwiching its legs 2b between the forming jigs 3 and 4, and then placing it in a hydrogen gas atmosphere in a heating furnace. The filament coil 2 was formed by heat treatment.
発明が解決しようとする問題点
しかしながら、このような成形方法においては、間接的
にフィラメントコイル２を加熱処理するので、捲線加工
されたフィラメントコイル２には良化しない部分が生じ
る。また、成形治具３，４の溝６．６が凹形をしている
ので、成形治具３，４としてフィラメントコイル２のコ
イル部２ａの形状、寸法等に応じて多くの種類のものが
必要となり、このためコストが高くつくという問題があ
った。また、フィラメントコイル２のコイル部２ａの形
状、寸法等のばらつきにより、成形後のフィラメントコ
イル２において、両足部２ｂの間隔や両足部２ｂのなす
角度に大きなばらつきが発生していた。Problems to be Solved by the Invention However, in such a forming method, since the filament coil 2 is indirectly heated, there are parts of the wound filament coil 2 that are not improved. Furthermore, since the grooves 6.6 of the forming jigs 3 and 4 are concave, many types of forming jigs 3 and 4 can be used depending on the shape and dimensions of the coil portion 2a of the filament coil 2. Therefore, there was a problem in that the cost was high. Further, due to variations in the shape, dimensions, etc. of the coil portion 2a of the filament coil 2, large variations occurred in the distance between the legs 2b and the angle formed by the legs 2b in the filament coil 2 after molding.
本発明は成形後のフィラメントコイルにおいて、両足部
の間隔およびなす角度のばらつきを小さくすることがで
き、また成形治具の種類を少なくしてコストを低減する
ことのできるフィラメントコイルの成形方法を提供する
ものである。The present invention provides a method for forming a filament coil that can reduce variations in the distance and angle between both legs in the filament coil after forming, and reduce costs by reducing the types of forming jigs. It is something to do.
問題点を解決するための手段
本発明のフィラメントコイルの成形方法は、コイル部と
このコイル部の両端から延びて形成された両足部とから
なるフィラメントコイルと、前記コイル部の上側を押圧
するための上側の成形治具と前記コイル部の下側を押圧
しかつ前記両足部を載せるための下側の成形治具とから
なる一対の成形治具と、前記下側の成形治具上に位置す
る両足部上固定しかつ前記両足部および前記コイル部に
通電するための２本の電極棒とを有し、前記一対の成形
治具のうち少なくとも下側の成形治具には前記コイル部
を受入れるためのＶ字形溝が形成されており、前記Ｖ字
形溝内に前記コイル部を入れて前記上側の成形冶具で前
記コイル部の上側を押えることにより、前記コイル部を
前記一対の成形治具で抑圧固定するとともに、前記下側
の成形治具と前記電極棒との間に前記両足部を固定し、
不活性ガス雰囲気中で前記電極棒を通して前記フィラメ
ントコイルに通電することにより、前記フィラメントコ
イルを成形することを特徴とするものである。Means for Solving the Problems The filament coil forming method of the present invention includes a filament coil consisting of a coil part and both legs extending from both ends of the coil part, and a method for pressing the upper side of the coil part. a pair of molding jigs consisting of an upper molding jig and a lower molding jig for pressing the lower side of the coil part and placing the both legs; and a pair of molding jigs located on the lower molding jig. and two electrode rods fixed on both legs and for energizing the legs and the coil section, and at least the lower forming jig of the pair of forming jigs has the coil section attached to the coil section. A V-shaped groove is formed for receiving the coil part, and by inserting the coil part into the V-shaped groove and pressing the upper side of the coil part with the upper forming jig, the coil part is inserted into the pair of forming jigs. and fixing both legs between the lower forming jig and the electrode rod,
The method is characterized in that the filament coil is formed by applying electricity to the filament coil through the electrode rod in an inert gas atmosphere.
作用
かかる構成により、フィラメントコイルを全体にわたっ
て確実に成形することができ、したがってフィラメント
コイルの両足部およびなす角度のばらつきを小さくする
ことができることとなる。Effect: With this configuration, the filament coil can be molded reliably over the entire filament coil, thereby making it possible to reduce variations in both legs of the filament coil and the angle formed by the filament coil.
実施例
以下、本発明の一実施例について図面を用いて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は本発明方法を実施するための装置の一例を示す
一部切欠正面図、第２図は同要部斜視図である。第１図
において、セラミック製の成形治具７，８は上下一対の
ものからなり、それぞれにＶ字形の溝９，１０が形成さ
れている。上側の成形治具７は上下に移動可能になって
いる。下側の成形治具８は溝１ｏを存する部分１１とこ
れに隣接して設けられた２つの台部分１２．．１３とか
らなり、それぞれの台部分にはＶ字形の溝１４．１５が
形成されている（第２図）。台部分１２．１３の材質は
耐摩耗性のものからなり、例えばセラミックのような絶
縁体や、鉄のような金属からなる。FIG. 1 is a partially cutaway front view showing an example of an apparatus for carrying out the method of the present invention, and FIG. 2 is a perspective view of the main part thereof. In FIG. 1, ceramic forming jigs 7 and 8 consist of a pair of upper and lower molding jigs, each having V-shaped grooves 9 and 10 formed therein. The upper forming jig 7 is movable up and down. The lower forming jig 8 has a portion 11 in which the groove 1o exists and two platform portions 12 provided adjacent to the portion 11. ．． 13, and V-shaped grooves 14 and 15 are formed in each base portion (FIG. 2). The base portion 12.13 is made of a wear-resistant material, such as an insulator such as ceramic or a metal such as iron.
第２図において、台部分１２．１３の上方には、それぞ
れに対応して２本の電極棒１６，１７が上下移動可能に
設けられている。電極棒１６．１７の先端部分は銀とタ
ングステン合金からなり、他の部分は銅からなり、両者
は接合されている。そして、成形治具７，８、電極棒１
６．１７等はカバー１８内に設けられている。カバー１
８内には、水素と窒素との混合ガス等からなる不活性ガ
スを導入するだめのパイプ１９．２０が設けられている
。In FIG. 2, two electrode rods 16, 17 are provided above the base portion 12, 13 so as to be movable up and down, corresponding to each other. The tip portions of the electrode rods 16 and 17 are made of silver and tungsten alloy, the other portions are made of copper, and both are joined. Then, forming jigs 7, 8, electrode rod 1
6, 17, etc. are provided inside the cover 18. cover 1
8 is provided with pipes 19 and 20 for introducing an inert gas such as a mixed gas of hydrogen and nitrogen.
次に、このような装置を用いて、本発明方法により、例
えば自動車用フィラメントコイルを成形する場合につい
て述べる。Next, a case will be described in which, for example, a filament coil for an automobile is formed by the method of the present invention using such an apparatus.
成形すべきフィラメントコイル２は、第４図ｃＡｌ。The filament coil 2 to be formed is shown in FIG. 4cAl.
（Ｂ）に示すように、コイル部２ａとその両端に延びて
形成された両足部２ｂとからなっている。いま、第２図
に示すように、自動車用やフィラメントコイル２のコイ
ル部２ａを下側の成形治具８の７字形溝１０内に入れ、
かつ両足部２ｂの中間部分を台部分１２．１３の７字形
溝１４，１５にそれぞれ入れ、先端部分を台部分１２．
１３の上面上に置く。しかる後、電極棒１６．１７を下
降させ、一方の足部２ｂを台部分１２と電極棒１６とで
、他方の足部２ｂを台部分１３と電極棒１７とでそれぞ
れ挾んで固定し、かつコイル部２１Ｌの移動を防止する
ために、上側の成形治具７を下降させ、コイル部２Ｎを
上下一対の成形治具７，８で挾んで固定する（第３図参
照）。この状態において、フィラメントコイル２への通
電加熱によりこれが酸化するのを防止するために、パイ
プ１９．２０から水素と窒素の混合ガスからなる不活性
ガスをコイル部２ａおよび両足部２ｂ周辺に導入しなが
ら、電極棒１６，１７間に３〜９ｖの交流電圧を印加し
、フィラメントコイル２に１〜３秒間通電する。この時
、フィラメントコイル２には、この温度が１２００〜１
４００℃の範囲となるような大きさの電流を流す。As shown in (B), it consists of a coil portion 2a and both leg portions 2b extending from both ends thereof. Now, as shown in FIG. 2, put the coil portion 2a of the filament coil 2 for automobile use into the 7-shaped groove 10 of the lower forming jig 8,
Then, insert the intermediate portions of both foot portions 2b into the 7-shaped grooves 14 and 15 of the base portion 12.13, respectively, and insert the tip portions into the base portion 12.13.
Place it on the top surface of 13. Thereafter, the electrode rods 16 and 17 are lowered, and one leg 2b is sandwiched and fixed between the base portion 12 and the electrode rod 16, and the other foot 2b is sandwiched and fixed between the base portion 13 and the electrode rod 17, and In order to prevent the coil portion 21L from moving, the upper forming jig 7 is lowered and the coil portion 2N is clamped and fixed between a pair of upper and lower forming jigs 7 and 8 (see FIG. 3). In this state, in order to prevent the filament coil 2 from being oxidized by heating with electricity, an inert gas consisting of a mixture of hydrogen and nitrogen is introduced from the pipe 19.20 around the coil portion 2a and both legs 2b. At the same time, an AC voltage of 3 to 9 V is applied between the electrode rods 16 and 17, and the filament coil 2 is energized for 1 to 3 seconds. At this time, the filament coil 2 has a temperature of 1200 to 1
A current of a magnitude such that the temperature is in the range of 400°C is applied.
このような本発明実施例のフィラメントコイル成形方法
は、加熱炉内でフィラメントコイルを加熱処理するとい
う従来の成形方法と異なり、不活性ガス雰囲気中でフィ
ラメントコイル２に通電することにより直接に加熱し、
これによってフィラメントコイル２を成形するので、フ
ィラメントコイル２を全体にわたって良化することが可
能となる。また、フィラメントコイル２のコイル部固定
用の溝９．１０がＶ字形をなしているので、コイル部２
ｂの形状、寸法にばらつきがあっても、上下一対の成形
治具７，８によりフィラメントコイル２を常に良好に固
定でき、そのため成形後のフィラメントコイル２には両
足部２ｂの間隔や両足部２ｂのなす角度に大きなばらつ
きを発生させず、しかも数多くの種類の成形治具を用意
しておく必要もなく、シたがってコストを低減すること
ができる。The filament coil forming method of the embodiment of the present invention differs from the conventional forming method in which the filament coil is heat-treated in a heating furnace. ,
Since the filament coil 2 is molded in this way, it becomes possible to improve the filament coil 2 over its entirety. In addition, since the grooves 9 and 10 for fixing the coil portion of the filament coil 2 are V-shaped, the coil portion 2
Even if there are variations in the shape and dimensions of b, the filament coil 2 can always be fixed well by the pair of upper and lower forming jigs 7 and 8. Therefore, the filament coil 2 after forming has the following characteristics: There is no need for large variations in the angle formed by the molding, and there is no need to prepare many types of molding jigs, thus reducing costs.
さらに、上記のように、成形治具７，８にセラミック材
料を用いると、それらの表面が汚れても、汚物を簡単に
拭き取ることができるので、汚物の付着によってフィラ
メントコイルの機械的強度が低下するようなこともなく
、したがって白熱電球を作った際、振動、衝撃によりフ
ィラメントコイルが断線するおそれもない。一方、従来
は成形治具にタングステン材料を用いていたため、それ
らの表面に汚物が付着して合金を作るなどの理由から、
汚物を簡単に除去することができず、その結果フィラメ
ントコイルの断線事故を招くことがあった。Furthermore, as mentioned above, if ceramic materials are used for the forming jigs 7 and 8, even if their surfaces become dirty, the dirt can be easily wiped off, so that the mechanical strength of the filament coil is reduced due to the adhesion of dirt. Therefore, when making an incandescent light bulb, there is no risk of the filament coil breaking due to vibration or impact. On the other hand, conventionally, tungsten materials were used for forming jigs, which caused dirt to adhere to their surfaces and create alloys.
Dirt cannot be easily removed, which may result in a filament coil breakage accident.
次に、本発明の効果を確認した実験例について述べる。Next, an experimental example in which the effects of the present invention were confirmed will be described.
第４図Ｃ＆） 、 （Ｂｌに示す構造の自動車用フィラ
メントコイルの捲線加工による寸法ばらつきを目標寸法
（両足部の間隔（Ｗ） ９．４ ｍ、両足部のなす角度
（００°）に修正するため、上記フィラメントコイルを
１０個ずつ上記した本発明実施例の方法と第６図に示す
従来例の方法とで成形し、成形フィラメントコイルの両
足部の間隔およびなす角度を測定したところ、それぞれ
第１表および第２表に示すとおりの結果が得られた。Figure 4 C&), (Dimension variations due to the winding process of the automotive filament coil with the structure shown in Bl are corrected to the target dimensions (distance between both legs (W) 9.4 m, angle formed by both legs (00°)) Therefore, ten filament coils were molded by the method of the embodiment of the present invention described above and the method of the conventional example shown in FIG. The results shown in Tables 1 and 2 were obtained.
（以下余白）
第 １ 表
第 ２ 表
第１表と第２表との対比か、ら明らかなように、本発明
実施例のフィラメントコイル成形方法によルト、従来の
方法に比べて、フィラメントコイルの両足部の間隔およ
びなす角度のばらつきを小さくすることが可能となる。(Leaving space below) Table 1 Table 2 As is clear from the comparison between Tables 1 and 2, the filament coil forming method of the embodiment of the present invention yields a larger amount of filament coil than the conventional method. It is possible to reduce variations in the distance between the legs and the angle formed by the legs.
なお、本発明方法を実施するための上記装置の例では、
下側の成形治具として、Ｖ字形溝を形成した部分と両足
部を載せる台部分とが別体構造であったが、同一材質、
例えばセラミック材料を用いて、一体構造としてもよい
。In addition, in the example of the above-mentioned apparatus for carrying out the method of the present invention,
As for the lower molding jig, the part where the V-shaped groove was formed and the platform part on which both feet were placed had separate structures, but they were made of the same material.
For example, a ceramic material may be used to form a monolithic structure.
また、この装置では上側の成形治具にもＶ字形溝を形成
したが、上側の成形治具にはＶ字形溝を必ずしも設ける
必要はなく、コイル部を押圧する面が平担面であっても
よい。In addition, in this device, a V-shaped groove is also formed in the upper forming jig, but it is not necessary to provide a V-shaped groove in the upper forming jig, and the surface that presses the coil part is a flat surface. Good too.
発明の詳細
な説明したように、本発明によれば、フィラメントコイ
ル全体にわたって確実に成形することができ、したがっ
て成形後のフィラメントコイルにおいて、両足部の間隔
およびなす角度のばらつきを小さくすることができ、ま
た成形治具も種類が少なくてよく、その結果フィラメン
トコイルのコストを低減することができるなどのすぐれ
た効果を有するフィラメントコイルの成形方法を提供す
ることができるものである。As described in detail, according to the present invention, it is possible to reliably mold the entire filament coil, and therefore, it is possible to reduce variations in the distance between the legs and the angle formed in the filament coil after molding. Furthermore, it is possible to provide a method for forming a filament coil which has excellent effects such as requiring fewer types of forming jigs and, as a result, reducing the cost of the filament coil.
第１図は本発明の方法を実施するための装置の一例を示
す一部切欠正面図、第２図は同装置の要部斜視図、第３
図は同装置の同要部拡大側面図、第４図（ムｌ 、 （
Ｂ）はそれぞれフィラメントコイルの一例を示す正面図
および側面図、第６図および第６図は従来例の方法を説
明するための工程図である。
２・・・・・・フィラメントコイル、２２Ｌ・・・・・
・コイル部、２ｂ・・・・・・両足部、７，８・・・・
・・成形治具、９，１０・・・・・・溝、１６，１７・
・・・・・電極棒、１８・・印・カバー、ｉ ９ ＋
２０・・・・・・パイプ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名Ｉ８
−ｍ−カバ°−
ｔｑ、 ’ｚ、ｏ −一一パイプ
第３図
第４図
（ハ）（Ｂ）
？FIG. 1 is a partially cutaway front view showing an example of an apparatus for carrying out the method of the present invention, FIG. 2 is a perspective view of the main part of the apparatus, and FIG.
The figure is an enlarged side view of the same main part of the same device, and Figure 4 (Mul, (
B) is a front view and a side view showing an example of a filament coil, respectively, and FIGS. 6 and 6 are process diagrams for explaining a conventional method. 2...Filament coil, 22L...
・Coil part, 2b...Both legs, 7, 8...
・・Forming jig, 9, 10 ・・groove, 16, 17・
...Electrode rod, 18... mark, cover, i 9 +
20...Pipe. Name of agent: Patent attorney Toshio Nakao and one other person I8
-m-cover °-tq, 'z, o -11 pipe Figure 3 Figure 4 (C) (B) ?
Claims (1)
足部とからなるフィラメントコイルと、前記コイル部の
上側を押圧するための上側の成形治具と前記コイル部の
下側を押圧しかつ前記両足部を載せるための下側の成形
治具とからなる一対の成形治具と、前記下側の成形治具
上に位置する両足部を固定しかつ前記両足部および前記
コイル部に通電するための２本の電極棒とを有し、前記
一対の成形治具のうち少なくとも下側の成形治具には前
記コイル部を受入れるためのＶ字形溝が形成されており
、前記Ｖ字形溝内に前記コイル部を入れて前記上側の成
形治具で前記コイル部の上側を押えることにより、前記
コイル部を前記一対の成形治具で押圧固定するとともに
、前記下側の成形治具と前記電極棒との間に前記両足部
を固定し、不活性ガス雰囲気中で前記電極棒を通して前
記フィラメントコイルに通電することにより、前記フィ
ラメントコイルを成形することを特徴とするフィラメン
トコイルの成形方法。A filament coil consisting of a coil part and both legs extending from both ends of the coil part, an upper forming jig for pressing the upper side of the coil part, and a molding jig for pressing the lower side of the coil part and A pair of molding jigs consisting of a lower molding jig for placing both feet, and for fixing both feet located on the lower molding jig and energizing the both feet and the coil part. At least the lower forming jig of the pair of forming jigs has a V-shaped groove for receiving the coil part, and a V-shaped groove is formed in the V-shaped groove to receive the coil part. By inserting the coil part and pressing the upper side of the coil part with the upper forming jig, the coil part is pressed and fixed by the pair of forming jigs, and the lower forming jig and the electrode rod are pressed and fixed. A method for forming a filament coil, characterized in that the filament coil is formed by fixing the legs between the legs and applying electricity to the filament coil through the electrode rod in an inert gas atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14602785A JPH0619976B2 (en) | 1985-07-03 | 1985-07-03 | Method of forming filament coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14602785A JPH0619976B2 (en) | 1985-07-03 | 1985-07-03 | Method of forming filament coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS628441A true JPS628441A (en) | 1987-01-16 |
| JPH0619976B2 JPH0619976B2 (en) | 1994-03-16 |
Family
ID=15398446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14602785A Expired - Lifetime JPH0619976B2 (en) | 1985-07-03 | 1985-07-03 | Method of forming filament coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619976B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6369357U (en) * | 1986-10-14 | 1988-05-10 |
-
1985
- 1985-07-03 JP JP14602785A patent/JPH0619976B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6369357U (en) * | 1986-10-14 | 1988-05-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619976B2 (en) | 1994-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE23080T1 (en) | COLLECTOR FOR AN ELECTRICAL MACHINE AND PROCESS FOR ITS MANUFACTURE. | |
| JPS628441A (en) | Molding of filament coil | |
| JPS60258824A (en) | Subminiature fuse and method of producing same | |
| US3300621A (en) | Electric hotplate and method of making same | |
| JPH04306817A (en) | Automatic manufacturing method for coil-shaped electric part | |
| US2324809A (en) | Soldering method | |
| EP0149282B1 (en) | Method of manufacturing helically wound filaments and filaments manufactured by means of this method | |
| US3916139A (en) | Method of soldering conductor ends to terminal | |
| US4266119A (en) | Hairpin-type electric resistance heating element | |
| US3586303A (en) | Carbon mold for manufacture of tantalum carbide filaments | |
| EP0082051A3 (en) | Process for realising a cooling arrangement with filiform elements for an electrical component, and arrangement so obtained | |
| JP2858674B2 (en) | Filament coil forming equipment | |
| US422190A (en) | M aek w | |
| JP2650898B2 (en) | Filament coil molding method | |
| JP2594294B2 (en) | Manufacturing method of long filament coil | |
| JP2557917B2 (en) | Method of manufacturing electromagnetic deflection unit | |
| US1258735A (en) | Method of building commutators. | |
| JPS6229055A (en) | Apparatus for molding filament coil | |
| ES296782U (en) | Method of manufacturing an electrical machine part. | |
| JPH02158053A (en) | Formation of filament coil | |
| JP2568595B2 (en) | Filament coil forming method | |
| JP2002124217A (en) | How to stabilize the dimensions of tungsten filaments | |
| JP2607285B2 (en) | Method of manufacturing semicircular contact material for sliding contact device | |
| GB2084070A (en) | Methods of producing a bore in an article | |
| US430838A (en) | Mark w |