JPS62287534A - Switch - Google Patents
SwitchInfo
- Publication number
- JPS62287534A JPS62287534A JP13020186A JP13020186A JPS62287534A JP S62287534 A JPS62287534 A JP S62287534A JP 13020186 A JP13020186 A JP 13020186A JP 13020186 A JP13020186 A JP 13020186A JP S62287534 A JPS62287534 A JP S62287534A
- Authority
- JP
- Japan
- Prior art keywords
- storage chamber
- arc
- magnet
- insulating
- switch
- 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
- 230000004907 flux Effects 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (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】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は電気回路の開閉器に関するものであり、特に
、接触子の開離時に発生するアークを駆動するためにア
ークに対して交差磁束を形成するための磁石を備えた自
刃消弧形の開閉器に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a switch for an electric circuit, and in particular, a switch for driving an arc generated when a contactor is opened. This invention relates to a self-blade arc-extinguishing switch equipped with a magnet for forming a cross magnetic flux with respect to an arc.
第３図は実開昭５９−７７７４２号公報に示された従来
の開閉器の開離状態を示す部分縦断面図である。FIG. 3 is a partial longitudinal sectional view showing the conventional switch disclosed in Japanese Utility Model Application Publication No. 59-77742 in an open state.
図において、符号（１）は第１の端子板、（２）は第１
の端子、板（１）審こ取り゛付けられている１対の内の
一方の接触子である固定接触子、（６）は固定接触子（
２）に対して接離する他方の接触子である可動接触子、
。In the figure, symbol (1) is the first terminal board, and (2) is the first terminal board.
Terminal, plate (1) is a fixed contact which is one of the pair of contacts attached to the board, (6) is a fixed contact (
2) a movable contact that is the other contact that moves toward and away from the
.
（４）、は可動接触子（５）に摺接する集電子、（５）
は集電子（４）が取り付けられている第２の端子板、（
６）は一方の端部が第１の端子板（１）に固着され、他
方の端部に開口部を有する固定外筒、（７）は固定外筒
（６）の上記開口部に固着された絶縁物から成る絶縁ノ
ズルであって、可動接触子（３）が挿入されて摺動可能
に形成されている貫通孔（７ａ）を有している。（８）
は絶縁ノズル（７）に設置されている環状の磁石、（９
）は固定性筒（６）に囲まれて形成されている絶縁消弧
ガスの貯留室、（９ａ）は貯留室（９）の絶縁消弧ガス
が出入りする貯留室口、（１０）は可動接触子（３）が
固定接触子（２）から開離するときに発生するアークで
、（１１）は円筒状に形成され、その一端面が固定外筒
（６）の外表面に取り付けられているシリンダ、（１２
）は可動接触子（３）に取り付けられ、シリンダ（１１
）の内周面に摺接するピストン、（１３）はシリンダ（
１２）と固定外筒（６）の底面とに囲まれて形成され、
可動接触子（３）の矢印Ａ方向の移動時に形成される負
王室である。(4) is a current collector that slides into contact with the movable contactor (5), (5)
is the second terminal plate on which the current collector (4) is attached, (
6) is a fixed outer cylinder whose one end is fixed to the first terminal plate (1) and has an opening at the other end, and (7) is fixed to the opening of the fixed outer cylinder (6). The nozzle is an insulating nozzle made of an insulating material, and has a through hole (7a) into which a movable contact (3) is inserted and slidably formed. (8)
is an annular magnet installed in the insulating nozzle (7), (9
) is an insulating arc-extinguishing gas storage chamber surrounded by a fixed cylinder (6), (9a) is a storage chamber opening through which insulating arc-extinguishing gas enters and exits the storage chamber (9), and (10) is a movable insulating arc-extinguishing gas storage chamber. This is an arc that occurs when the contact (3) separates from the fixed contact (2), and (11) is formed in a cylindrical shape, one end surface of which is attached to the outer surface of the fixed outer cylinder (6). cylinder, (12
) is attached to the movable contact (3), and the cylinder (11
), the piston (13) is in sliding contact with the inner peripheral surface of the cylinder (
12) and the bottom surface of the fixed outer cylinder (6),
This is a negative ring formed when the movable contactor (3) moves in the direction of arrow A.
次に動作について説明する。Next, the operation will be explained.
この開閉器が投入状態で、電流が第１の端子板（１）か
ら固定接触子（２）へ、そして可動接触子（３）から集
電子（４）を介して第２の端子板（５）へ流れている場
合、可動接触子（５）が駆動機構（図示しない）憂こよ
って矢印Ａ方向へ駆動されると、可動接触子（３）は固
定接触子（２）から開離し、内接触子間にアーク（１０
）が発生する。When this switch is in the closed state, current flows from the first terminal plate (1) to the fixed contact (2), and from the movable contact (3) to the second terminal plate (5) via the current collector (4). ), when the movable contact (5) is driven in the direction of arrow A by a drive mechanism (not shown), the movable contact (3) separates from the fixed contact (2) and flows inside. Arc between contacts (10
) occurs.
一方、環状の磁石（８）は、アーク（１０）に対して、
自分の作る磁界と、アーク電流値との積に比例する駆動
力を与える。アーク（１０）はこの駆動力によって回転
させられ、遠心力によって貯留室（９）内部へ引き伸ば
される。On the other hand, the annular magnet (8) is
It provides a driving force proportional to the product of the magnetic field it creates and the arc current value. The arc (10) is rotated by this driving force and stretched into the storage chamber (9) by centrifugal force.
しゃ断時に発生するアーク（１０）の電流位相が、電流
ピーク近傍の時は、アーク（１０）によって熱せられた
絶縁消弧ガスが貯留室口（９ａ）を通って貯留室（９）
内に蓄積され、貯留室（９）内の絶縁消弧ガスは、温度
および圧力ともに増大する。When the current phase of the arc (10) generated at the time of interruption is near the current peak, the insulating arc extinguishing gas heated by the arc (10) passes through the storage chamber opening (9a) and flows into the storage chamber (9).
The insulating arc-extinguishing gas in the storage chamber (9) increases with temperature and pressure.
また、電流位相が、電流零点近傍になったときは、アー
ク（１０）の圧力は小さくなり、逆に貯留室（９）から
アーク（１０）への絶縁消弧ガスの吹付けが行なわれ、
消弧にいたる。Moreover, when the current phase becomes near the current zero point, the pressure of the arc (10) decreases, and conversely, the insulating arc-extinguishing gas is sprayed from the storage chamber (9) to the arc (10).
The arc is extinguished.
しかし、アーク電流実効値が小さいときには、先の貯留
室（９）への圧力上昇が十分でないために、貯留室（９
）内の絶縁消弧ガスの圧力が低く、従って、消弧性能が
不足する。However, when the effective value of the arc current is small, the pressure rise to the previous storage chamber (9) is not sufficient, so
) is low in pressure of the insulating arc-extinguishing gas, resulting in insufficient arc-extinguishing performance.
これに対処するために、従来装置では、可動接触子（３
）のしゃ断動作によって、圧力が低下する負圧室（１３
）を設けて貯留室（９）から、アーク（１０）、絶縁ノ
ズル（７）を通って負王室（１３）にいたる強制ガス流
を作り、また、アーク（１０）に磁場をかけて、その回
転によって絶縁消弧ガスとアークとの相対的流れを作る
ことによって、小電流しゃ断時のアーク（１０）を消弧
させている。To deal with this, in conventional equipment, movable contacts (3
) The negative pressure chamber (13
) to create a forced gas flow from the storage chamber (9) through the arc (10) and the insulating nozzle (7) to the negative chamber (13), and by applying a magnetic field to the arc (10), By creating a relative flow between the insulating arc extinguishing gas and the arc through rotation, the arc (10) is extinguished when a small current is interrupted.
従来の磁石を備えた開閉器は、上記のように構成されて
いるので、貯留室口での磁界の半径方向成分は小さく、
従って、しゃ断電流が小さい場合には、アークは貯留室
内部へまでは殆んど駆動されない。その結果、貯留室内
の絶縁消弧ガスの加熱、昇圧も十分でなく、従って、消
弧性能も十分には得られないなどの問題点を有していた
。Since the conventional switch equipped with a magnet is configured as described above, the radial component of the magnetic field at the storage chamber entrance is small;
Therefore, when the breaking current is small, the arc is hardly driven into the storage chamber. As a result, heating and pressurization of the insulating arc-extinguishing gas in the storage chamber are not sufficient, resulting in problems such as insufficient arc-extinguishing performance.
この発明は、上記のような問題点を解決するためになさ
れたもので、小電流のしゃ断時にも、安定したしゃ断性
能が得られるようにした開閉器を得ることを目的とする
。This invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain a switch that can obtain stable breaking performance even when cutting off a small current.
この発明に係る開閉器は、貯留室口に半径方向に磁束を
発生させる磁石を、貯留室の外側にあって貯留室を環状
に取り囲む外側永久磁石と、貯留室口の内側に設けられ
る環状又は円柱状の内側磁石と、上記外内側磁石をその
磁路において短絡する磁性体とから構成している組合せ
磁石としている。The switch according to the present invention includes a magnet that generates magnetic flux in the radial direction at the storage chamber opening, an outer permanent magnet that is located outside the storage chamber and surrounds the storage chamber in an annular shape, and an annular permanent magnet that is provided inside the storage chamber opening. The combined magnet is made up of a cylindrical inner magnet and a magnetic material that short-circuits the outer and inner magnets in their magnetic paths.
この発明における内外側磁石と磁性体との組合せによる
組合せ磁石によって、貯留室口における半径方向の磁界
は強化され、従って、しゃ断時に発生するアークは周方
向に強力に駆動されて、その結果、消弧作用は強められ
る。Due to the combination magnet of the present invention, which is a combination of the inner and outer magnets and the magnetic material, the radial magnetic field at the storage chamber mouth is strengthened, and therefore the arc generated at the time of interruption is strongly driven in the circumferential direction, and as a result, it is extinguished. The arc effect is strengthened.
以下、この発明をその実施例を示す図ζこ基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIG. ζ showing an embodiment thereof.
第１実施例を示す第１図において、磁石（８）を除く符
号（１）〜（１０）に示すものは、従来装置において示
したものと同等のものであり、また、符号（２１）は、
組合せ磁石であって、軸方向に磁化された環状の外側永
久磁石（２２）と、これと逆向きの軸方向に磁化された
棒状の内側永久磁石（２３）と、これらの内外側永久磁
石から発生する磁束の貯留室口側と反対側の磁路を短絡
するとともに、貯留室（９）内部に絶縁消弧ガスの流通
を行なわさせるための連通穴（２４）およびアーク（１
０）から固定接触子（２）を通って消弧室外へ高温ガス
を放出するための放出口（２５）が形成されている磁性
体例えば鉄板（２６）とから構成されている。In FIG. 1 showing the first embodiment, the items indicated by symbols (1) to (10) excluding the magnet (8) are the same as those shown in the conventional device, and the symbol (21) is the same as that shown in the conventional device. ,
A combination magnet consisting of an annular outer permanent magnet (22) magnetized in the axial direction, a rod-shaped inner permanent magnet (23) magnetized in the opposite axial direction, and these inner and outer permanent magnets. A communication hole (24) and an arc (1) are provided to short-circuit the magnetic path of the generated magnetic flux on the side opposite to the storage chamber entrance side, and to allow insulating arc-extinguishing gas to flow inside the storage chamber (9).
0) through the fixed contactor (2) to the outside of the arc extinguishing chamber.
なお、第１の端子板（１）には、放出口（２５）から放
出されるアーク（１ｏ）によって熱せられた高温ガスが
消弧室外へ放出される排気口（２７）が設けられている
。Note that the first terminal board (1) is provided with an exhaust port (27) through which high-temperature gas heated by the arc (1o) released from the discharge port (25) is released to the outside of the arc extinguishing chamber. .
次にこの第１実施例の動作について説明する。Next, the operation of this first embodiment will be explained.
両接触子（２１，（３１間が閉合して両接触子（２１（
３）間４こ電流が流れている場合、可動接触子（３）が
、しゃ断指令によって、矢印Ａ方向へ引き下げられると
、両接触子（２１（３）間にはアーク（１０）が発生し
、このアーク（１０）によって熱せられた絶縁消弧ガス
は、絶縁ノズル（７）を通って図中下方へ放出されると
ともに、排気口（２７）によっても消弧室外へ放出され
るが、その一部は、貯留室口（９ａ）を通って貯留室（
９）へ入る。Both contacts (21, (31) are closed and both contacts (21 (
3) When a current is flowing between the two contacts (21 (3)), when the movable contact (3) is pulled down in the direction of arrow A by the cutoff command, an arc (10) is generated between the two contacts (21 (3)). The insulating arc-extinguishing gas heated by this arc (10) passes through the insulating nozzle (7) and is discharged downward in the figure, and is also discharged to the outside of the arc-extinguishing chamber through the exhaust port (27). A portion passes through the storage chamber entrance (9a) to the storage chamber (
Enter 9).
この貯留室（９）へ入ったガスによって、貯留室（９）
内の絶縁消弧ガスは温度が上昇し、その結果、圧力も上
昇する。The gas that has entered this storage chamber (9) causes the storage chamber (9) to
The temperature of the insulating arc-extinguishing gas inside increases, and as a result, the pressure also increases.
一方、アーク電流が交流の零点に近付くと、アーク発生
部の圧力が小さくなり、上記とは逆に貯留室（９）に貯
えられた高圧になっている絶縁消弧ガスはアーク（１０
）に吹き付けられ、従って、アークは冷却されてしゃ断
される。On the other hand, when the arc current approaches the zero point of the alternating current, the pressure at the arc generating part decreases, and contrary to the above, the high pressure insulating arc extinguishing gas stored in the storage chamber (9)
), thus the arc is cooled and cut off.
この貯留室（９）に貯えられている絶縁消弧ガスの圧力
は、アーク電流が小さい程小さく、この場合には消弧性
能が不足するが、この発明の組合せ磁石（２１）によっ
て作られるところの貯留室口（９ａ）付近での半径方向
の磁界によって、アーク（１０）を周方向に駆動し、こ
の力が強いとアーク（１０）はその遠心力によって貯留
室（９）の内部へ引き伸ばされる。The pressure of the insulating arc-extinguishing gas stored in this storage chamber (9) is smaller as the arc current is smaller, and in this case, the arc-extinguishing performance is insufficient. The arc (10) is driven in the circumferential direction by a radial magnetic field near the storage chamber entrance (9a), and if this force is strong, the arc (10) is stretched into the storage chamber (9) by the centrifugal force. It will be done.
このようにして、アーク（１０）のエネルギーはよく貯
留室（９）へ貯められるために、アーク電流が小さい場
合でも、十分な圧力上昇が起こり、従って、安定したし
ゃ断性能が得られる。In this way, the energy of the arc (10) is well stored in the storage chamber (9), so that even when the arc current is small, a sufficient pressure rise occurs and, therefore, stable breaking performance can be obtained.
この場合、アーク（１０）への回転力、従ってまた。In this case the rotational force on the arc (10) and therefore also.
遠心力を与えるのは、磁界の内、半径方向成分のみであ
る。従って、この発明のように、主として貯留室口（９
ａ）付近で半径方向の磁路を発生するように構成された
磁石にあっては、磁界の絶対値はたとえ小さくても、ア
ーク（１０）の消弧に有効に生かされることになる。Only the radial component of the magnetic field provides centrifugal force. Therefore, as in this invention, the storage chamber opening (9
In a magnet configured to generate a radial magnetic path in the vicinity of a), even if the absolute value of the magnetic field is small, it can be effectively used to extinguish the arc (10).
次に第２図番こ示すものは、この発明の第２実施例であ
る。Next, Figure 2 shows a second embodiment of the present invention.
図において、符号（３１）は組合せ磁石であることは上
記第１実施例と同じであるが、環状の外側永久磁石（３
２）は貯留室（９）を構成する固定外筒を兼ねて、おり
、また、磁性体である鉄板（３３）は貯留室（９）の一
方の壁面を兼ねている点において異なって詔り、その他
の部分においては、第１実施例と同様である。In the figure, the reference numeral (31) is a combination magnet, which is the same as in the first embodiment, but an annular outer permanent magnet (31) is the same as in the first embodiment.
2) is different in that it also serves as a fixed outer cylinder constituting the storage chamber (9), and the iron plate (33), which is a magnetic material, also serves as one wall of the storage chamber (9). , the other parts are the same as in the first embodiment.
このように構成されるならば、部品数が少なくなり、ま
た、貯留室（９）内のガス流通が妨げられないので、一
層簡単で、安定した消弧性能を有する開閉器が得られる
。With this configuration, the number of parts is reduced and gas flow within the storage chamber (9) is not obstructed, so that a switch that is simpler and has stable arc extinguishing performance can be obtained.
なお、各磁石の材質としては、例えば、フェライト系、
アルニコ系、サマリウム系希土類およびネオジウム嗜鉄
・ボロン系磁石などがあるが、磁力の強い磁石であれば
、より消弧効果は大きい。The material of each magnet is, for example, ferrite,
There are alnico-based, samarium-based rare earth magnets, and neodymium-based iron/boron-based magnets, but the stronger the magnetic force, the greater the arc extinguishing effect.
以上のように、この発明によれば、アーク駆動用の磁石
を貯留室の外側にあって貯留室を環状に取り囲む外側永
久磁石と貯留室の内側に設けられる環状又は円柱状の、
外側永久磁石とは極性を逆にした内側永久磁石と、この
両磁石の磁路を短絡する磁性体とによって構成されてい
る組合せ磁石としているので、半径方向の磁束がアーク
に有効に働くようになり、従って、小電流しゃ断時性が
安定した開閉器が得られるという効果を有している。As described above, according to the present invention, the arc driving magnet is located outside the storage chamber and includes an outer permanent magnet that annularly surrounds the storage chamber, and an annular or cylindrical magnet that is provided inside the storage chamber.
The combination magnet is made up of an inner permanent magnet whose polarity is opposite to that of the outer permanent magnet, and a magnetic material that shorts the magnetic path of both magnets, so that the magnetic flux in the radial direction works effectively on the arc. Therefore, it is possible to obtain a switch with stable small current interruption performance.
第１図はこの発明の第１実施例による開閉器を示す部分
縦断面図、第２図はこの発明の第２実施例を示す開閉器
の部分縦断面図、第３図は従来の磁石を備えた開閉器の
ｗＣ断面図である。
（２）・・接触子（固定接触子）、（３）・・接触子（
可動接触子）、（６）・・固定外筒、（７）・・絶縁ノ
ズル、（９）・・貯留室、（９ａ）・・貯留室口、（１
０）・・アーク、（２１） （３１）・・組合せ磁石、
（２２） （５２）・・外側永久磁石、（２５）・・内
側永久磁石、（２６） （３３）・・磁性体（鉄板）。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a partial vertical cross-sectional view showing a switch according to a first embodiment of the present invention, FIG. 2 is a partial vertical cross-sectional view of a switch according to a second embodiment of the present invention, and FIG. It is wC sectional drawing of the switch provided. (2)...Contact (fixed contact), (3)...Contact (
Movable contactor), (6)...Fixed outer cylinder, (7)...Insulating nozzle, (9)...Storage chamber, (9a)...Storage chamber opening, (1
0)...Arc, (21) (31)...Combination magnet,
(22) (52)...Outer permanent magnet, (25)...Inner permanent magnet, (26) (33)...Magnetic body (iron plate). In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
を有して貯留室を形成している固定外筒、一方が上記固
定外筒内に設けられ、他方が上記絶縁ノズル内に挿入摺
動して上記一方に接離動作をする一対の接触子、上記貯
留室の絶縁ノズル側に形成されて貯留室へのガスの流路
となる貯留室口、および、この貯留室口に半径方向の磁
束を発生させる磁石を有している開閉器において、上記
磁石が、上記貯留室の外側にあって貯留室を環状に取り
囲む外側永久磁石と、貯留室の内側に設けられる環状又
は円柱状の内側永久磁石と、上記両磁石の磁路を短絡す
る磁性体とから構成されている組合せ磁石であることを
特徴とする開閉器。A fixed outer cylinder in which insulating arc-extinguishing gas is stored and has an insulating nozzle on one end side to form a storage chamber, one of which is provided within the fixed outer cylinder and the other is slidably inserted into the insulating nozzle. a pair of contacts that move toward and away from one of the storage chambers, a storage chamber opening formed on the insulating nozzle side of the storage chamber and serving as a flow path for gas to the storage chamber, and a radial contact at the storage chamber opening. In a switch having a magnet that generates magnetic flux, the magnet includes an outer permanent magnet located outside the storage chamber and surrounding the storage chamber in an annular shape, and an annular or cylindrical inner magnet provided inside the storage chamber. A switch characterized in that it is a combination magnet composed of a permanent magnet and a magnetic material that short-circuits the magnetic paths of both magnets.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13020186A JPS62287534A (en) | 1986-06-06 | 1986-06-06 | Switch |
| EP92200222A EP0483123B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| EP92200221A EP0483122B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| EP87305003A EP0248677B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| EP92200220A EP0483121B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| DE3750513T DE3750513T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| DE3750482T DE3750482T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| DE3750514T DE3750514T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| DE3789165T DE3789165T2 (en) | 1986-06-06 | 1987-06-05 | Switchgear. |
| US07/059,041 US4786770A (en) | 1986-06-06 | 1987-06-08 | Switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13020186A JPS62287534A (en) | 1986-06-06 | 1986-06-06 | Switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62287534A true JPS62287534A (en) | 1987-12-14 |
Family
ID=15028509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13020186A Pending JPS62287534A (en) | 1986-06-06 | 1986-06-06 | Switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62287534A (en) |
-
1986
- 1986-06-06 JP JP13020186A patent/JPS62287534A/en active Pending
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