JP2586874Y2 - Electricity and water flow structure of high frequency heating device - Google Patents
Electricity and water flow structure of high frequency heating deviceInfo
- Publication number
- JP2586874Y2 JP2586874Y2 JP4749492U JP4749492U JP2586874Y2 JP 2586874 Y2 JP2586874 Y2 JP 2586874Y2 JP 4749492 U JP4749492 U JP 4749492U JP 4749492 U JP4749492 U JP 4749492U JP 2586874 Y2 JP2586874 Y2 JP 2586874Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating device
- electrode plate
- hose
- heating coil
- fixed
- 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 - Fee Related
Links
Landscapes
- General Induction Heating (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、高周波加熱装置の通電
・通水構造に係わり、特に加熱コイルが加熱装置本体に
対して移動可能な高周波加熱装置の通電・通水構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energizing / water-passing structure of a high-frequency heating device, and more particularly to an energizing / water-passing structure of a high-frequency heating device in which a heating coil is movable with respect to a heating device main body.
【０００２】[0002]
【従来の技術】従来、ろう付けする場合に使用される高
周波加熱装置は、例えば図４に示すものが知られてい
る。図において、１は高周波発生器であり、その出力端
子２に延長用の銅板等からなるリード線３を接続し、そ
の先端部を、直方体状のケース４内に設けた共振回路５
の一端に接続する。ケース４は図示しないキャスターに
より移動可能に支持された可動台に固定され、その右壁
に銅板製の電極６を突出固定し、この電極６に共振回路
５の他端を接続する。また一対の銅板製のホルダ７を絶
縁板８を介して重ね合わせて前記電極６間に介装し、ボ
ルト締め固定し、該ホルダ７に銅パイプ製の加熱コイル
９の両端部をろう付け固定する。この加熱コイル９はそ
の突出端部に環状に湾曲させたコイル部９ａを有し、そ
の両端部にホースコスクタ９ｂを固着し、このホースコ
ネクタ９ｂにホース１０を接続する。上記ホース１０の
一端は、高周波発生器１を介して図示しない冷却水供給
装置のウオータポンプに接続し、該ウオータポンプによ
りホース１０を介して加熱コイル９に冷却水を流通させ
る。2. Description of the Related Art Conventionally, as a high-frequency heating device used for brazing, for example, the one shown in FIG. 4 is known. In the figure, reference numeral 1 denotes a high-frequency generator, which is connected to a lead wire 3 made of a copper plate or the like for extension to an output terminal 2 thereof, and a resonance circuit 5 having a tip portion provided in a rectangular parallelepiped case 4.
To one end. The case 4 is fixed to a movable base movably supported by a caster (not shown). An electrode 6 made of a copper plate is fixed to the right wall of the case 4 so as to project therefrom. The other end of the resonance circuit 5 is connected to the electrode 6. Further, a pair of copper plate holders 7 are superposed via an insulating plate 8, interposed between the electrodes 6 and fixed by bolting, and both ends of a copper pipe heating coil 9 are brazed and fixed to the holder 7. I do. The heating coil 9 has an annularly curved coil portion 9a at its protruding end, a hose cosplayer 9b is fixed to both ends thereof, and a hose 10 is connected to the hose connector 9b. One end of the hose 10 is connected to a water pump of a cooling water supply device (not shown) via the high frequency generator 1, and the cooling water flows through the heating coil 9 via the hose 10 by the water pump.
【０００３】[0003]
【考案が解決しようとする課題】しかし、この高周波加
熱装置にあっては、加熱コイル９がケース４に取付けら
れているため、ろう付け部品Ｗを加熱コイル９部に向け
て移動させねばならず、冷蔵庫あるいは空調機の熱交換
器等の如く、大物の本体に取付けられて移動困難なろう
付け部品は、上記加熱コイル９で加熱することができな
いという問題点があった。また、ホース１０を加熱コイ
ル９から高周波発生器１まで配管する必要があり、特に
加熱コイル９を遠方に設置したい場合等、高周波発生器
１と加熱コイル９の接続構造が複雑かつ煩雑になるとい
う問題点があった。本考案は上記の問題点を解決するこ
とを目的とし、加熱コイルを任意の箇所に容易に移動可
能に構成し得ると共に、加熱コイルと加熱装置本体との
接続を簡略化し得る高周波加熱装置の通電・通水構造を
提供するものである。However, in this high-frequency heating device, since the heating coil 9 is attached to the case 4, the brazing part W must be moved toward the heating coil 9. In addition, there is a problem that a brazing part which is attached to a large body and is difficult to move, such as a refrigerator or a heat exchanger of an air conditioner, cannot be heated by the heating coil 9. In addition, it is necessary to pipe the hose 10 from the heating coil 9 to the high frequency generator 1, and particularly when it is desired to install the heating coil 9 in a remote place, the connection structure between the high frequency generator 1 and the heating coil 9 becomes complicated and complicated. There was a problem. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and can configure a heating coil so that it can be easily moved to an arbitrary position, and energize a high-frequency heating device that can simplify the connection between the heating coil and the heating device body.・ Provides a water flow structure.
【０００４】[0004]
【課題を解決するための手段】かかる目的を達成すベ
く、本考案の通電・通水構造は、加熱装置本体の一側面
に配設され、開口部分に冷却水供給部材が配設された第
１の電極板と、前記開口部分と対向する開口部分に、そ
の一端が連結部材を介して連結された可橈性のホース
と、前記連結部材にその一端が接続されて前記ホース内
に配設されたリード線とを有する第２の電極板とを備
え、前記ホース及びリード線の他端に加熱コイルを接続
すると共に、前記開口部分の少なくとも一方にシール部
材を配設して、前記第２の電極板を第１の電極板に圧接
固定することを特徴とするものである。In order to achieve the above object, the present invention provides a current-carrying / water-passing structure provided on one side of a heating device body and a cooling water supply member provided at an opening. A first electrode plate, a flexible hose having one end connected to an opening opposed to the opening via a connecting member, and one end connected to the connecting member and arranged in the hose; And a second electrode plate having a lead wire provided, a heating coil is connected to the other end of the hose and the lead wire, and a seal member is disposed on at least one of the opening portions. The second electrode plate is press-fixed to the first electrode plate.
【０００５】[0005]
【作用】本考案の通電・通水構造において、第２の電極
板に、可橈製のホース及びこのホース内に収容されたリ
ード線の一端を接続固定すると共に、ホース及びリード
線の他端に加熱コイルを接続する。そして、第２の電極
板を、加熱装置本体の一側面に固定された第１の電極板
に、両電極の開口部分が対向する如く圧接固定する。こ
の時、第２の電極板の開口部分は、例えば第１の電極板
の開口部分に配設されたシール部材を押圧し、このシー
ル部材によって両電極板の開口部分がシールされる。そ
して一対の電極板をそれぞれ圧接固定することにより、
加熱装置本体と加熱コイルとの、電気的な接続と冷却水
の流路接続を同時に行うことができる。これにより、加
熱コイルが加熱装置本体に対して移動可能に接続される
と共に、冷却水の流路の配管等を簡略化し得る。According to the present invention, a flexible hose and one end of a lead wire housed in the hose are connected and fixed to the second electrode plate, and the other end of the hose and the lead wire are connected to the second electrode plate. Connect the heating coil to. Then, the second electrode plate is pressed and fixed to the first electrode plate fixed to one side surface of the heating device main body such that the openings of both electrodes face each other. At this time, the opening portion of the second electrode plate presses, for example, a seal member provided at the opening portion of the first electrode plate, and the opening portions of both electrode plates are sealed by the seal member. Then, by pressing and fixing the pair of electrode plates respectively,
The electrical connection between the heating device main body and the heating coil and the flow path connection of the cooling water can be simultaneously performed. Thus, the heating coil is movably connected to the heating device main body, and the piping of the cooling water flow path and the like can be simplified.
【０００６】[0006]
【実施例】以下、本考案の実施例を図面に基づいて詳細
に説明する。図１〜図３は、本考案に係わる通電・通水
構造の一実施例を示している。図において、高周波加熱
装置（以下単に加熱装置という）の加熱装置本体１１
の、例えば正面開口部にはベーク板１２が固定され、こ
のベーク板１２の開口部には、一対の電極１３、１４が
配設されている。これら電極１３、１４は、ベーク板１
２に固定された電極板１５、１６（第１の電極板）と、
この電極板１５、１６の前面に、後述する如く圧接固定
される電極板１７、１８（第２の電極板）とで構成され
る。上記電極板１５、１６は、平面視Ｌ字状に形成さ
れ、その側面部１５ａ、１６ａが、ベーク板等からなる
絶縁板１９を介して、ボルト２０によって固定されてい
る。また、電極板１５、１６の正面部１５ｂ、１６ｂに
は、開口２１、２２が設けられている。開口２１、２２
の前面にはざぐり部２３、２４（図３参照）が設けら
れ、このざぐり部２３、２４には、例えばゴムパッキ
ン、Ｏリング等からなるシール部材２５、２６が配設さ
れている。また、正面部１５ｂ、１６ｂの裏面には、後
部が密閉された銅製の角パイプ２７、２８がろう付け固
定されると共に、この角パイプ２７、２８の後部には、
冷却水供給用もしくは排出用の、例えばワンタッチ式の
ホースコネクター２９、３０が固定されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment of a current-carrying / water-passing structure according to the present invention. In the figure, a heating device main body 11 of a high-frequency heating device (hereinafter simply referred to as a heating device) is shown.
For example, a bake plate 12 is fixed to the front opening, and a pair of electrodes 13 and 14 are arranged in the opening of the bake plate 12. These electrodes 13 and 14 are connected to the bake plate 1
Electrode plates 15 and 16 (first electrode plates) fixed to 2;
Electrode plates 17 and 18 (second electrode plates) are fixed to the front surfaces of the electrode plates 15 and 16 by pressure contact as described later. The electrode plates 15 and 16 are formed in an L shape in a plan view, and the side surfaces 15a and 16a are fixed by bolts 20 via an insulating plate 19 made of a bake plate or the like. Further, openings 21 and 22 are provided in the front portions 15 b and 16 b of the electrode plates 15 and 16. Openings 21, 22
Counterbore portions 23, 24 (see FIG. 3) are provided on the front surface of the device, and seal members 25, 26 made of, for example, rubber packing, O-rings, and the like are disposed on the counterbore portions 23, 24. Further, copper square pipes 27 and 28 whose rear parts are hermetically sealed are brazed and fixed to the back surfaces of the front parts 15b and 16b.
For example, one-touch type hose connectors 29 and 30 for supplying or discharging the cooling water are fixed.
【０００７】一方上記電極板１７、１８は平板に形或さ
れ、上記開口２１、２２に対向する開口３１、３２がそ
れぞれ設けられている。この開口３１、３２の前面に
は、ナット３３、３４が、このナット３３、３４の前面
側にはニップル３５、３６が、またこのニップル３５、
３６の前面側には、銅製の円形のパイプ３７、３８がそ
れぞれろう付け固定されている。このナット３３、３
４、ニップル３５、３６、パイプ３７、３８は、その内
部の孔によって連通されており、ホース３９、４０等の
連結部材を構成している。また、ナット３３、３４、ニ
ップル３５、３６、パイプ３７、３８は導電性の材料に
よって構成される。上記ニップル３５、３６の外周に
は、所定長さの可橈性を有する絶縁性のホース３９、４
０の一端が嵌装され、固定バンド４１、４２等によって
固定されている。上記パイプ３７、３８の先端部３７
ａ、３８ａには、ホース３９、４０と略同一の長さを有
する、例えば銅のより線等からなるリード線４３、４４
の一端が加締固定される。これにより、リード線４３、
４４がホース３９、４０内に収容される。また、パイプ
３７、３８には孔３７ｂ、３８ｂが穿設されている。そ
して、上記ホース３９、４０、リード線４３、４４の他
端には、図１に点線で示す如く加熱コイル４５が接続さ
れる。なお、加熱コイル４５とホース３９、４０及びリ
ード線４３、４４の接続も、上記電極１３、１４部と略
同様に行われる。また、上記電極板１５、１６は、加熱
装置本体１１内に設けられている高周波発振器（図示せ
ず）の出力端子４７、４８にそれぞれ接続されている。On the other hand, the electrode plates 17 and 18 are formed into flat plates, and are provided with openings 31 and 32 facing the openings 21 and 22, respectively. Nuts 33 and 34 are provided in front of the openings 31 and 32, nipples 35 and 36 are provided in front of the nuts 33 and 34, and nipples 35 and 36 are provided.
Copper circular pipes 37 and 38 are fixed to the front side of the brazing member 36 by brazing. These nuts 33, 3
The nipples 35 and 36 and the pipes 37 and 38 are communicated with each other by holes therein, and constitute connecting members such as hoses 39 and 40. The nuts 33 and 34, the nipples 35 and 36, and the pipes 37 and 38 are made of a conductive material. On the outer circumference of the nipples 35 and 36, insulated hoses 39 and 4 having a predetermined length and flexibility are provided.
0 is fitted at one end and fixed by fixing bands 41, 42 and the like. The tip 37 of the pipes 37, 38
a and 38a are lead wires 43 and 44 having substantially the same length as the hoses 39 and 40 and made of, for example, a copper stranded wire or the like.
Is crimped and fixed. Thereby, the lead wire 43,
44 is housed in the hoses 39,40. The pipes 37 and 38 are provided with holes 37b and 38b. A heating coil 45 is connected to the other ends of the hoses 39 and 40 and the lead wires 43 and 44 as shown by a dotted line in FIG. The connection between the heating coil 45, the hoses 39 and 40, and the lead wires 43 and 44 is performed in substantially the same manner as the electrodes 13 and 14. The electrode plates 15 and 16 are connected to output terminals 47 and 48 of a high-frequency oscillator (not shown) provided in the heating device main body 11, respectively.
【０００８】次に、上記装置の動作について説明する。
まず、ホース３９とリード線４３が接続された電極板１
７を、電極板１５の前面に、各電極板１５、１７の開口
２１３１を対向させた状態で、複数のボルト４６（図２
参照）によって固定する。この時、電極板１７は、電極
板１５の開口２１に設けられたシール部材２５を押圧す
る。同じように、電極板１８を電極板１６に圧接固定す
る。そして、ホース３９、４０の他端に所定形状の加熱
コイル４５を接続することにより、加熱装置本体１１と
加熱コイル４５との電気的接続と冷却水の流路接続が完
了したことになる。この状態で、加熱装置を動作させ、
高周波発振器及び冷却水供給装置（図示せず）を作動さ
せると、高周波電流は、出力端子４７、４８から、電極
板１５、１６、電極板１７、１８、ナット３３、３４、
ニップル３５、３６、パイプ３７、３８、リード線４
３、４４を介して加熱コイル４５に供給される。一方、
冷却水は例えば、ホースコネクタ２９に接続されたホー
ス４９（図１参照）から供給され、矢印イの如くパイプ
３７の孔３７ｂからホース３９内に流入する。そして、
これが加熱コイル４５内を通過した後、ホース４０内に
流入し、パイプ３８の孔３８ｂから矢印ロに示す如く連
結部材内に流入し、ホースコネクタ３０に接続されたホ
ース５０を介して冷却水供給装置に戻される。なお、電
極板１５、１６と電極板１７、１８は、シール部材２
５、２６によってシールされているため、冷却水が各電
極板１５、１７及び１６、１８の開口２１、３１部及び
２２、３２部から外部に漏洩することはない。Next, the operation of the above device will be described.
First, the electrode plate 1 to which the hose 39 and the lead wire 43 are connected
7, a plurality of bolts 46 (FIG. 2) with the openings 2131 of the electrode plates 15, 17 facing the front surface of the electrode plate 15.
See). At this time, the electrode plate 17 presses the seal member 25 provided in the opening 21 of the electrode plate 15. Similarly, the electrode plate 18 is pressed and fixed to the electrode plate 16. Then, by connecting the heating coil 45 having a predetermined shape to the other ends of the hoses 39 and 40, the electrical connection between the heating device main body 11 and the heating coil 45 and the connection of the cooling water flow path are completed. In this state, operate the heating device,
When the high-frequency oscillator and the cooling water supply device (not shown) are operated, the high-frequency current is supplied from the output terminals 47 and 48 to the electrode plates 15 and 16, the electrode plates 17 and 18, the nuts 33 and 34,
Nipple 35, 36, pipe 37, 38, lead wire 4
The heat is supplied to the heating coil 45 via 3 and 44. on the other hand,
The cooling water is supplied from, for example, a hose 49 (see FIG. 1) connected to the hose connector 29, and flows into the hose 39 from the hole 37b of the pipe 37 as indicated by an arrow A. And
After passing through the heating coil 45, it flows into the hose 40, flows through the hole 38 b of the pipe 38 into the connecting member as shown by the arrow B, and supplies the cooling water through the hose 50 connected to the hose connector 30. Returned to device. Note that the electrode plates 15 and 16 and the electrode plates 17 and 18 are
Since it is sealed by 5, 26, the cooling water does not leak to the outside from the openings 21, 31 and 22, 32 of the electrode plates 15, 17 and 16, 18.
【０００９】このように、上記実施例によれば、可橈性
を有するホース３９、４０が接続された電極板１７、１
８を、加熱装置本体１１の電極板１５、１６に、ボルト
４６で圧接固定するだけで、加熱装置本体１１と加熱コ
イル４５との、電気的な接続と冷却水の流路の接続を同
時に行うことができる。従って、加熱コイル４５を加熱
装置本体１１に対して任意の箇所に容易に移動できる共
に、加熱コイル４５を遠方に設置する場合でも、２本の
ホース３９、４０だけで接続可能であるため、例えばこ
の２本のホース３９、４０を可橈性のチューブ等で囲繞
したりすれば、加熱コイル４５と加熱装置本体１１の配
線・配管が極めて簡単となり、特に、溶接ロボット等と
組み合わせて使用する場合に好適である。なお、上記実
施例においては、電極１５、１６にざぐり部２３、２４
を設け、このざぐり部２３、２４にシール部材２５、２
６を配設したが、例えば、電極１７、１８の開口３１、
３２部分にざぐり部を設けてもよいし、両方の電極にシ
ール部材を配設するようにしてもよい。また、本考案に
おける、電極板、リード線の形状、連結部材とリード線
の接続等は、上記実施例に何等限定されるものではな
く、本考案の要旨を逸脱しない範囲で種々変更可能であ
ることは言うまでもない。As described above, according to the above embodiment, the electrode plates 17, 1 to which the hoses 39, 40 having flexibility are connected are provided.
The electric connection between the heating device main body 11 and the heating coil 45 and the connection of the flow path of the cooling water are simultaneously performed only by press-fixing the heating device 8 to the electrode plates 15 and 16 of the heating device main body 11 with bolts 46. be able to. Therefore, the heating coil 45 can be easily moved to an arbitrary position with respect to the heating device main body 11 and can be connected only by the two hoses 39 and 40 even when the heating coil 45 is installed in a distant place. If the two hoses 39 and 40 are surrounded by a flexible tube or the like, the wiring and piping between the heating coil 45 and the heating device main body 11 become extremely simple, and particularly when used in combination with a welding robot or the like. It is suitable for. In the above embodiment, the counterbore portions 23, 24 are attached to the electrodes 15, 16.
The counterbore portions 23, 24 are provided with seal members 25, 2
6 are disposed, for example, the openings 31 of the electrodes 17 and 18,
A counterbore portion may be provided in 32 parts, or a seal member may be provided on both electrodes. Further, in the present invention, the shape of the electrode plate, the shape of the lead wire, the connection between the connecting member and the lead wire, and the like are not limited to the above-described embodiment, and can be variously changed without departing from the gist of the present invention. Needless to say.
【００１０】[0010]
【考案の効果】以上詳述したように、本考案の高周波加
熱装置の通電・通水構造によれば、加熱コイルを任意の
箇所に移動させて、所定の被加工物を加熱させることが
でき、移動困難なろう付け部品を容易にろう付けするこ
とができる。また、加熱コイルと加熱装置の電気的接続
と、冷却水の流路接続を極めて簡単に行うことができる
等の効果を奏する。[Effects of the Invention] As described above in detail, according to the current-carrying and water-passing structure of the high-frequency heating device of the present invention, a predetermined work piece can be heated by moving a heating coil to an arbitrary position. In addition, brazing parts that are difficult to move can be easily brazed. In addition, there is an effect that the electrical connection between the heating coil and the heating device and the connection of the flow path of the cooling water can be made extremely easily.
【図１】本考案の一実施例を示す一部を破断した断面図FIG. 1 is a partially cutaway sectional view showing one embodiment of the present invention.
【図２】図１のＩＩ−ＩＩ線断面図FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】図１のＩＩＩ部の拡大図FIG. 3 is an enlarged view of a part III in FIG. 1;
【図４】従来例を示す平面図FIG. 4 is a plan view showing a conventional example.
１１ ： 加熱装置本体 １３、１４ ： 電極 １５、１６ ： 電極板（第１の電極板） １７、１８ ： 電極板（第２の電極板） ２１、２２、３１、３２ ： 開口 ２５、２６ ： シール部材 ２７、２８ ： 角パイプ ２９、３０ ： ホースコネクタ ３５、３６ ： ニップル ３７、３８ ： パイプ ３９、４０ ： ホース ４３、４４ ： リード線 ４５ ： 加熱コイル 11: Heating device body 13, 14: Electrode 15, 16: Electrode plate (first electrode plate) 17, 18: Electrode plate (second electrode plate) 21, 22, 31, 32: Opening 25, 26: Seal Member 27, 28: Square pipe 29, 30: Hose connector 35, 36: Nipple 37, 38: Pipe 39, 40: Hose 43, 44: Lead wire 45: Heating coil
Claims (1)
口部分に冷却水供給部材が配設された第１の電極板と、
前記開口部分と対向する開口部分に、その一端が連結部
材を介して連結された可橈性のホースと、前記連結部材
にその一端が接続されて前記ホース内に配設されたリー
ド線とを有する第２の電極板とを備え、前記ホース及び
リード線の他端に加熱コイルを接続すると共に、前記開
口部分の少なくとも一方にシール部材を配設して、前記
第２の電極板を第１の電極板に圧接固定することを特徴
とする高周波加熱装置の通電・通水構造。A first electrode plate provided on one side surface of the heating device main body and having a cooling water supply member provided at an opening thereof;
A flexible hose, one end of which is connected via a connecting member to an opening portion facing the opening portion, and a lead wire, one end of which is connected to the connecting member and arranged in the hose. A heating coil is connected to the other end of the hose and the lead wire, and a seal member is provided on at least one of the opening portions, so that the second electrode plate is connected to the first electrode plate. A current-carrying and water-passing structure for a high-frequency heating device, which is fixed by pressure contact to an electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4749492U JP2586874Y2 (en) | 1992-05-28 | 1992-05-28 | Electricity and water flow structure of high frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4749492U JP2586874Y2 (en) | 1992-05-28 | 1992-05-28 | Electricity and water flow structure of high frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0594991U JPH0594991U (en) | 1993-12-24 |
| JP2586874Y2 true JP2586874Y2 (en) | 1998-12-14 |
Family
ID=12776673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4749492U Expired - Fee Related JP2586874Y2 (en) | 1992-05-28 | 1992-05-28 | Electricity and water flow structure of high frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2586874Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4710498B2 (en) * | 2005-09-09 | 2011-06-29 | 株式会社明電舎 | High frequency power supply conductor |
-
1992
- 1992-05-28 JP JP4749492U patent/JP2586874Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0594991U (en) | 1993-12-24 |
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