JPH08312677A - Exciting device for electromagnetic coupling device - Google Patents
Exciting device for electromagnetic coupling deviceInfo
- Publication number
- JPH08312677A JPH08312677A JP7141071A JP14107195A JPH08312677A JP H08312677 A JPH08312677 A JP H08312677A JP 7141071 A JP7141071 A JP 7141071A JP 14107195 A JP14107195 A JP 14107195A JP H08312677 A JPH08312677 A JP H08312677A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coil bobbin
- terminal cover
- exciting
- core
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
- F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Electromagnets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電磁クラッチや電磁
ブレーキなどの電磁連結装置に使用される励磁装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exciting device used for an electromagnetic coupling device such as an electromagnetic clutch and an electromagnetic brake.
【０００２】[0002]
【従来の技術】従来の励磁装置は、コイルボビンの巻枠
壁部の外側面に突起部を形成して、この突起部に、巻枠
壁部の案内溝（スリット）から引き出された励磁コイル
の巻始め端部と巻終わり端部が接続される端子を一体に
固定した構造となっている（特開昭５３−２３０６５号
公報参照）。2. Description of the Related Art In a conventional excitation device, a projection is formed on the outer surface of a winding bobbin wall of a coil bobbin, and an excitation coil drawn out from a guide groove (slit) of the winding bobbin wall is formed on the projection. It has a structure in which terminals to which the winding start end and the winding end end are connected are integrally fixed (see JP-A-53-23065).
【０００３】[0003]
【発明が解決しようとする課題】このような励磁装置を
電磁連結装置の励磁装置として使用するためには、コア
の底部から外側に露呈される端子部分、特には励磁コイ
ルと端子の接続部分を、端子カバーで外部と電気的に絶
縁しなければならない。しかしながら、端子カバーをコ
アの底部外側に固定する工程があると生産性が悪く、励
磁装置を安価に提供できない。この発明は、このような
課題を解決して励磁装置を安価に提供することを目的と
する。In order to use such an exciting device as an exciting device for an electromagnetic coupling device, a terminal portion exposed from the bottom of the core to the outside, particularly, a connecting portion between the exciting coil and the terminal is used. , The terminal cover must be electrically insulated from the outside. However, if there is a step of fixing the terminal cover to the outside of the bottom of the core, the productivity will be poor and the exciter cannot be provided at a low cost. An object of the present invention is to solve the above problems and provide an exciting device at low cost.
【０００４】[0004]
【課題を解決するための手段】このような目的を達成す
るために、この発明の電磁連結装置の励磁装置では、第
１の発明（請求項１）として、端子が一体に固定された
コイルボビンの突起部に端子カバーを嵌合するととも
に、この端子カバーのフランジ部を、コイルボビンの巻
枠壁部とコアの底部との間に介在したことを特徴とす
る。In order to achieve such an object, in the exciting device of the electromagnetic coupling device of the present invention, as a first invention (claim 1), a coil bobbin having terminals integrally fixed is provided. The terminal cover is fitted to the protrusion, and the flange of the terminal cover is interposed between the winding frame wall of the coil bobbin and the bottom of the core.
【０００５】また、第２の発明（請求項２）として、端
子が一体に固定された突起部の周りの巻枠壁部に凹部を
形成したコイルボビンとして、突起部に嵌合される端子
カバーのフランジ部を、コイルボビンの凹部とコアの底
部との間に介在したことを特徴とする。As a second aspect of the present invention (claim 2), a terminal bobbin fitted to the protrusion is provided as a coil bobbin having a recess formed in the wall of the winding frame around the protrusion to which the terminal is integrally fixed. The flange portion is interposed between the concave portion of the coil bobbin and the bottom portion of the core.
【０００６】また更に、第３の発明（請求項３）とし
て、端子が一体に固定された突起部の周りの巻枠壁部に
凹部を形成するとともに、突起部の半径方向外側には、
励磁コイルが引き出されるテーパー状の一対の案内溝を
形成したコイルボビンとして、突起部に嵌合される端子
カバーのフランジ部を、コイルボビンの凹部とコアの底
部との間に介在したことを特徴とする。Further, as a third invention (claim 3), a recess is formed in the wall of the winding frame around the projection to which the terminal is integrally fixed, and at the outside of the projection in the radial direction.
A coil bobbin having a pair of tapered guide grooves from which the exciting coil is drawn out, characterized in that a flange portion of the terminal cover fitted to the protrusion portion is interposed between the recess portion of the coil bobbin and the bottom portion of the core. .
【０００７】[0007]
【作用】この発明に係る電磁連結装置の励磁装置は、外
部電源と端子を介して励磁コイルが接続される。外部電
源側の制御により励磁コイルに通電すると、励磁装置に
は磁束が発生する。In the exciting device of the electromagnetic coupling device according to the present invention, the exciting coil is connected to the external power source through the terminal. When the exciting coil is energized by the control of the external power supply side, a magnetic flux is generated in the exciting device.
【０００８】[0008]
【実施例】図１から図６はこの発明の一実施例であり、
図１は電磁連結装置の正面図、図２は電磁連結装置の上
半部を断面とした側面図、図３はコイルボビンの平面
図、図４はコンルボビンの正面図、図５は端子カバーの
正面図、図６は端子カバーの平面図である。これら図面
に示された電磁連結装置１は、従動機器２のハウジング
に固定された励磁装置３と、従動機器２の回転軸２ａに
一体に装着されたロータ４と、回転軸２ａに軸受で回転
自在に支持されたアーマチュアハブ５と、このアーマチ
ュアハブ５に板ばね６で軸線方向に移動自在に支持され
たアーマチュア７とを有する。1 to 6 show an embodiment of the present invention,
1 is a front view of the electromagnetic coupling device, FIG. 2 is a side view in which the upper half of the electromagnetic coupling device is shown in cross section, FIG. 3 is a plan view of a coil bobbin, FIG. 4 is a front view of a stove bobbin, and FIG. 5 is a front view of a terminal cover. 6 and 6 are plan views of the terminal cover. An electromagnetic coupling device 1 shown in these drawings includes an exciting device 3 fixed to a housing of a driven device 2, a rotor 4 integrally mounted on a rotating shaft 2a of the driven device 2, and a rotating shaft 2a that rotates with a bearing. The armature hub 5 is rotatably supported, and the armature 7 is rotatably supported on the armature hub 5 by a leaf spring 6 in the axial direction.
【０００９】励磁装置３は、自己融着線からなる励磁コ
イル８が巻回されたコイルボビン９が収納され固定され
た環状溝１０ａと、後述する端子カバー１２が挿入され
る貫通孔１０ｂが形成されたコア１０を有する。なお符
号１０ｃは、このコア１０を従動機器２に固定するため
のねじ孔である。コイルボビン９は、励磁コイル８が巻
回されたコイル巻回部９ａと、一方の巻枠壁部の外側面
に形成された正面視が円弧状の突起部９ｂと、この突起
部９ｂの半径方向外側に円周方向に間隔をおいて形成さ
れるとともに、コイル巻回部９ａに連通するように形成
されたテーパー状の一対の案内溝９ｃと、突起部９ｂの
円周方向両端部となる巻枠壁部に形成された凹部９ｄと
を有する。The exciting device 3 is provided with an annular groove 10a in which a coil bobbin 9 around which an exciting coil 8 made of a self-bonding wire is wound is housed and fixed, and a through hole 10b into which a terminal cover 12 described later is inserted. Having a core 10. Reference numeral 10c is a screw hole for fixing the core 10 to the driven device 2. The coil bobbin 9 includes a coil winding portion 9a around which the exciting coil 8 is wound, a projection portion 9b formed on the outer surface of one winding frame wall portion and having an arcuate shape in a front view, and a radial direction of the projection portion 9b. A pair of tapered guide grooves 9c formed on the outer side in the circumferential direction at intervals and formed so as to communicate with the coil winding portion 9a, and windings that are both circumferential end portions of the projecting portion 9b. It has a recess 9d formed in the frame wall.
【００１０】またこのコイルボビン９の突起部９ｂに
は、案内溝９ｃの中心線と一致する中心線となるよう
に、一対の端子１１がインサート成形により一体に固定
されている。そして、案内溝９ｃから引き出された励磁
コイル８の巻始め端部と巻終わり端部が、図示されては
いないが、突起部９ｂの先端に近接して各端子１１に絡
げられ半田付けまたは溶接により固着されている。なお
図１においては、案内溝９ｃの開口端Ａと端子１１の上
面とに段差があるように図示したが、実際にはその段差
は無いに等しいように設計されている。また案内溝９ｃ
の開口端Ｂは、面取りされた円弧状の角部に形成されて
いる。A pair of terminals 11 are integrally fixed to the protrusion 9b of the coil bobbin 9 by insert molding so that the center line coincides with the center line of the guide groove 9c. Although not shown, the winding start end and the winding end end of the exciting coil 8 drawn out from the guide groove 9c are entwined with each terminal 11 close to the tip of the protrusion 9b and soldered or It is fixed by welding. Although FIG. 1 shows that there is a step between the opening end A of the guide groove 9c and the upper surface of the terminal 11, it is actually designed to have no step. In addition, the guide groove 9c
The open end B of is formed in a chamfered arc-shaped corner.
【００１１】またコイルボビン９の突起部９ｂには、正
面視が円弧状の端子カバー１２が嵌合されている。この
端子カバー１２は、端子１１が挿入される一対の貫通孔
１２ａと、コイルボビン９の凹部９ｄに嵌合されるフラ
ンジ部１２ｂが形成されている。なおこの実施例では、
端子１１が端子カバー１２から外側に突出する構造であ
るが、端子カバー１２内で端子１１と接続されたリード
線が、端子カバー１２の底部から引き出される場合もあ
る。A terminal cover 12, which is arcuate in a front view, is fitted on the protrusion 9b of the coil bobbin 9. The terminal cover 12 is formed with a pair of through holes 12 a into which the terminals 11 are inserted and a flange portion 12 b fitted into the recess 9 d of the coil bobbin 9. In this example,
Although the terminal 11 has a structure that protrudes outward from the terminal cover 12, the lead wire connected to the terminal 11 inside the terminal cover 12 may be pulled out from the bottom portion of the terminal cover 12.
【００１２】このような構造とした励磁装置３は、励磁
コイル８をコイルボビン９のコイル巻回部９ａに多条に
巻回してから、励磁コイル８の両端部を各端子１１に絡
げる。次に、励磁コイル８を加熱乾燥させて固定した
後、巻回した励磁コイル８の外周に絶縁テープを巻き付
ける。また、励磁コイル８の両端部と端子１１の接続部
を溶着する。次に、貫通孔１２ａに端子１１を個々に挿
入しながら、コイルボビン９の突起部９ｂに端子カバー
１２を嵌合する。そして、端子カバー１２を底部の貫通
孔１０ｂに位置合わせした後、コア１０の環状溝１０ａ
にコイルボビン９を圧入嵌合する。したがって、端子カ
バー１２と端子１１がコア１０の底部から突出され、端
子カバー１２のフランジ部１２ｂが、コイルボビン９の
凹部９ｄとコア１０の底部との間に介在される。In the exciting device 3 having such a structure, the exciting coil 8 is wound around the coil winding portion 9a of the coil bobbin 9 in multiple turns, and then both ends of the exciting coil 8 are entwined with each terminal 11. Next, the exciting coil 8 is heated and dried to be fixed, and then an insulating tape is wrapped around the wound exciting coil 8. Further, both ends of the exciting coil 8 and the connecting portion of the terminal 11 are welded. Next, the terminal cover 12 is fitted to the protruding portion 9b of the coil bobbin 9 while individually inserting the terminals 11 into the through holes 12a. Then, after aligning the terminal cover 12 with the through hole 10b at the bottom, the annular groove 10a of the core 10 is aligned.
The coil bobbin 9 is press-fitted into. Therefore, the terminal cover 12 and the terminal 11 are projected from the bottom of the core 10, and the flange 12b of the terminal cover 12 is interposed between the recess 9d of the coil bobbin 9 and the bottom of the core 10.
【００１３】また、このような構造とした電磁連結装置
１は、図示せぬ外部電源の制御により励磁コイル８に通
電すると、励磁装置３には磁束が発生するので、アーマ
チュア７が板ばね６のばね力に抗してロータ４に磁気吸
着され、図示せぬモータの回転が、アーマチュアハブ５
−板ばね６−アーマチュア７−ロータ４を経て、回転軸
２ａに伝達される。また、励磁コイル８への通電が断た
れると、アーマチュア７のロータ４への磁気吸着力がな
くなり、この部分の連結が切り離され回転伝達は遮断さ
れる。In the electromagnetic coupling device 1 having such a structure, when the exciting coil 8 is energized by the control of an external power source (not shown), a magnetic flux is generated in the exciting device 3, so that the armature 7 acts as a leaf spring 6. The rotation of the motor (not shown) is attracted to the rotor 4 against the spring force, and the rotation of the motor (not shown)
It is transmitted to the rotary shaft 2a via the leaf spring 6, the armature 7 and the rotor 4. When the energization of the exciting coil 8 is cut off, the magnetic attraction force of the armature 7 to the rotor 4 disappears, the connection of this part is cut off, and the rotation transmission is cut off.
【００１４】なお以上の説明では、端子カバー１２のフ
ランジ部１２ｂをコイルボビン９の凹部９ｄとコア１０
の底部との間に介在した構造としたが、コア１０の底部
内側面に凹部を形成してもよく、凹部の形状も変更でき
る。またコイルボビン９の案内溝９ｃは、突起部９ｂの
円周方向両端面に形成してもよく、一方の案内溝９ｃ
は、コイル巻回部９ａの底部に連通するようにしてもよ
い。また更に、電磁連結装置として電磁クラッチを例示
したが、この発明に係る励磁装置は、電磁ブレーキなど
の他の電磁継手にも使用できる。In the above description, the flange portion 12b of the terminal cover 12 is connected to the recess 9d of the coil bobbin 9 and the core 10.
However, a recess may be formed in the inner surface of the bottom of the core 10, and the shape of the recess can be changed. The guide groove 9c of the coil bobbin 9 may be formed on both circumferential end surfaces of the protrusion 9b.
May communicate with the bottom of the coil winding portion 9a. Further, although the electromagnetic clutch is exemplified as the electromagnetic coupling device, the exciting device according to the present invention can be used for other electromagnetic couplings such as an electromagnetic brake.
【００１５】[0015]
【発明の効果】以上のようにこの発明の電磁連結装置の
励磁装置は、端子が一体に固定されたコイルボビンの突
起部に端子カバーを嵌合するとともに、この端子カバー
のフランジ部を、コイルボビンの巻枠壁部とコアの底部
との間に介在した構造としたので、特別な端子カバーの
固定手段を設ける必要がなく、生産性が向上され励磁装
置を安価に提供できる。As described above, in the exciter for the electromagnetic coupling device of the present invention, the terminal cover is fitted to the protrusion of the coil bobbin to which the terminals are integrally fixed, and the flange portion of the terminal cover is attached to the coil bobbin. Since the structure is interposed between the winding frame wall and the bottom of the core, it is not necessary to provide a special fixing means for the terminal cover, the productivity is improved, and the exciting device can be provided at a low cost.
【００１６】また、端子が一体に固定された突起部の周
りの巻枠壁部に凹部を形成したコイルボビンとして、突
起部に嵌合される端子カバーのフランジ部を、コイルボ
ビンの凹部とコアの底部との間に介在した構造としたの
で、中心線方向の寸法が短縮され小形な励磁装置を提供
することができる。As a coil bobbin in which a recess is formed in the wall of the winding frame around the projection to which the terminal is integrally fixed, the flange portion of the terminal cover fitted to the projection is provided with the recess of the coil bobbin and the bottom of the core. Since the structure is interposed between and, the size of the centerline direction can be shortened and a small-sized exciter can be provided.
【００１７】また更には、端子が一体に固定された突起
部の周りの巻枠壁部に凹部を形成するとともに、突起部
の半径方向外側には、励磁コイルが引き出されるテーパ
ー状の一対の案内溝を形成したコイルボビンとして、突
起部に嵌合される端子カバーのフランジ部を、コイルボ
ビンの凹部とコアの底部との間に介在した構造としたの
で、案内溝の開口端と端子の上面との段差は無いに等し
いように設計され、励磁コイルの両端部は、案内溝の開
口端と端子との無いに等しい段差からなる境目を通り端
子に個々に絡げられるので、絡げる際に、または外部か
ら受ける振動により、励磁コイルがこの境目で断線する
ようなことはない。Furthermore, a recess is formed in the wall of the winding frame around the protrusion to which the terminal is integrally fixed, and a pair of tapered guides for pulling out the exciting coil are provided outside the protrusion in the radial direction. As the grooved coil bobbin, the flange portion of the terminal cover fitted to the protrusion is formed between the recessed portion of the coil bobbin and the bottom portion of the core, so that the opening end of the guide groove and the upper surface of the terminal are It is designed so that there is no step, and both ends of the exciting coil are individually entangled with the terminals through the boundary formed by the step with no opening and the terminal of the guide groove, so when entwining, Or, the exciting coil will not be broken at this boundary due to the vibration received from the outside.
【図１】この発明の一実施例である電磁連結装置の正面
図である。FIG. 1 is a front view of an electromagnetic coupling device according to an embodiment of the present invention.
【図２】図１の上半部を断面とした側面図である。FIG. 2 is a side view showing a cross section of the upper half of FIG.
【図３】コイルボビンの平面図である。FIG. 3 is a plan view of a coil bobbin.
【図４】コンルボビンの正面図である。FIG. 4 is a front view of a conbobbin.
【図５】端子カバーの正面図である。FIG. 5 is a front view of a terminal cover.
【図６】端子カバーの平面図である。FIG. 6 is a plan view of a terminal cover.
【符号の説明】 ３…励磁装置、８…励磁コイル、９…コイルボビン、１
０…コア、１１…端子、１２…端子カバー。[Explanation of Codes] 3 ... Exciting device, 8 ... Exciting coil, 9 ... Coil bobbin, 1
0 ... Core, 11 ... Terminal, 12 ... Terminal cover.
Claims (3)
たコイル巻回部と、巻枠壁部の外側面に形成された突起
部とを有するコイルボビンと、このコイルボビンの突起
部に一体に固定され前記励磁コイルの両端部が接続され
た一対の端子と、前記コイルボビンの突起部に嵌合され
るとともにフランジ部が形成された端子カバーと、前記
コイルボビンが収納される環状溝と前記端子カバーが挿
入される貫通孔が形成されたコアとを備え、前記端子カ
バーのフランジ部を、前記コイルボビンの巻枠壁部と前
記コアの底部との間に介在したことを特徴とする電磁連
結装置の励磁装置。1. A coil bobbin having an exciting coil, a coil winding part around which the exciting coil is wound, and a protrusion formed on an outer surface of a winding frame wall, and a coil bobbin integrally formed on the protrusion. A pair of terminals that are fixed and connected to both ends of the exciting coil, a terminal cover that is fitted to a protrusion of the coil bobbin and has a flange portion, an annular groove that houses the coil bobbin, and the terminal cover. And a core having a through hole formed therein, the flange portion of the terminal cover being interposed between the winding frame wall portion of the coil bobbin and the bottom portion of the core. Exciter.
たコイル巻回部と、巻枠壁部の外側面に形成された突起
部と、この突起部の周りの巻枠壁部に形成された凹部と
を有するコイルボビンと、このコイルボビンの突起部に
一体に固定され前記励磁コイルの両端部が接続された一
対の端子と、前記コイルボビンの突起部に嵌合されると
ともに前記コイルボビンの凹部に嵌合されるフランジ部
が形成された端子カバーと、前記コイルボビンが収納さ
れる環状溝と前記端子カバーが挿入される貫通孔が形成
されたコアとを備え、前記端子カバーのフランジ部を、
前記コイルボビンの凹部と前記コアの底部との間に介在
したことを特徴とする電磁連結装置の励磁装置。2. An exciting coil, a coil winding portion around which the exciting coil is wound, a protrusion formed on an outer side surface of the winding frame wall, and a winding wall around the protrusion. A coil bobbin having a recessed portion, a pair of terminals integrally fixed to the protruding portion of the coil bobbin and connected to both ends of the exciting coil, and fitted in the protruding portion of the coil bobbin and in the recessed portion of the coil bobbin. A terminal cover in which a flange portion to be fitted is formed, an annular groove in which the coil bobbin is housed, and a core in which a through hole into which the terminal cover is inserted are formed, and a flange portion of the terminal cover,
An exciting device for an electromagnetic coupling device, wherein the exciting device is interposed between a recess of the coil bobbin and a bottom of the core.
たコイル巻回部と、巻枠壁部の外側面に形成された突起
部と、この突起部の周りの巻枠壁部に形成された凹部
と、前記突起部の半径方向外側にテーパー状に形成され
前記コイル巻回部に連通した一対の案内溝とを有するコ
イルボビンと、前記案内溝の中心線と一致する中心線と
なるように前記コイルボビンの突起部に一体に固定さ
れ、前記案内溝の開口端から上面に引き出された前記励
磁コイルの両端部が接続された一対の端子と、前記コイ
ルボビンの突起部に嵌合されるとともに前記コイルボビ
ンの凹部に嵌合されるフランジ部が形成された端子カバ
ーと、前記コイルボビンが収納される環状溝と前記端子
カバーが挿入される貫通孔が形成されたコアとを備え、
前記端子カバーのフランジ部を、前記コイルボビンの凹
部と前記コアの底部との間に介在したことを特徴とする
電磁連結装置の励磁装置。3. An exciting coil, a coil winding part around which the exciting coil is wound, a protrusion formed on an outer surface of a winding frame wall, and a winding wall around the protrusion. A coil bobbin having a recessed portion and a pair of guide grooves formed in a taper shape on the outer side in the radial direction of the protrusion and communicating with the coil winding portion, and a center line that matches the center line of the guide groove. A pair of terminals that are integrally fixed to the protruding portion of the coil bobbin and that are connected to both ends of the exciting coil that is drawn out from the opening end of the guide groove to the upper surface, and that are fitted to the protruding portion of the coil bobbin. A terminal cover in which a flange portion that fits into the recess of the coil bobbin is formed; and an annular groove in which the coil bobbin is housed and a core in which a through hole into which the terminal cover is inserted are formed,
An exciting device for an electromagnetic coupling device, wherein a flange portion of the terminal cover is interposed between a recess of the coil bobbin and a bottom portion of the core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7141071A JPH08312677A (en) | 1995-05-16 | 1995-05-16 | Exciting device for electromagnetic coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7141071A JPH08312677A (en) | 1995-05-16 | 1995-05-16 | Exciting device for electromagnetic coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08312677A true JPH08312677A (en) | 1996-11-26 |
Family
ID=15283564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7141071A Pending JPH08312677A (en) | 1995-05-16 | 1995-05-16 | Exciting device for electromagnetic coupling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08312677A (en) |
-
1995
- 1995-05-16 JP JP7141071A patent/JPH08312677A/en active Pending
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