JPH0416341Y2 - - Google Patents
Info
- Publication number
- JPH0416341Y2 JPH0416341Y2 JP1986194271U JP19427186U JPH0416341Y2 JP H0416341 Y2 JPH0416341 Y2 JP H0416341Y2 JP 1986194271 U JP1986194271 U JP 1986194271U JP 19427186 U JP19427186 U JP 19427186U JP H0416341 Y2 JPH0416341 Y2 JP H0416341Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- support legs
- rail
- outer bottom
- engaging
- 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
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000004080 punching Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Mounting Components In General For Electric Apparatus (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Breakers (AREA)
Description
【考案の詳細な説明】
［考案の目的］
（産業上の利用分野）
本考案は、回路しゃ断器のケースをレールに固
定するようにした回路しや断器の取付装置に関す
る。[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a circuit breaker mounting device for fixing a circuit breaker case to a rail.
（従来の技術）
従来より、多数の回路しや断器をレールに一括
して取付けることが考えられており、その取付装
置の一例を第４図に示す。即ち、プラスチツク製
のケース１の外底部に係合突条部２を形成すると
ともに、係合突条部２と略直交する方向に複数個
例えば二対４個の断面略Ｌ字状の支持脚３，３及
び４，４を対向するように立設している。また、
これら支持脚３，３及び４，４間に先端部に係合
爪部５ａを有する取付板５を往復移動可能に嵌合
支持し、常時はばね６により係合突条部２方向へ
付勢している。そして、ケース１の外底部を固定
用のレール７上に載置し、係合突条部２にレール
７の一方の係合部７ａを係合し、他方の係合部７
ｂに取付板５を移動付勢させることによりその係
合爪部５ａを係合させ、以てケース１をレール７
に固定している。而して、ケース１は上下二分割
型の成形型によつて一体成形されるようになつて
おり、この場合に、支持脚３の先端部３ａを成形
するために、ケース１の底部に先端部３ａに対応
した型抜き孔８が必然的に形成されるようにな
る。尚、９はケース１の底部に係合突条部２を成
形するために形成された型抜き孔、１０はケース
１内に各相間を仕切るように形成された遮蔽壁で
ある。(Prior Art) Conventionally, it has been considered to mount a large number of circuits and disconnectors on a rail all at once, and an example of such a mounting device is shown in FIG. 4. That is, an engagement protrusion 2 is formed on the outer bottom of a plastic case 1, and a plurality of support legs, for example two pairs of four support legs, each having a substantially L-shaped cross section are provided in a direction substantially perpendicular to the engagement protrusion 2. 3, 3 and 4, 4 are erected to face each other. Also,
A mounting plate 5 having an engaging claw portion 5a at its tip is fitted and supported between these support legs 3, 3 and 4, 4 so as to be movable back and forth, and is normally biased in the direction of the engaging protrusion 2 by a spring 6. are doing. Then, place the outer bottom of the case 1 on the fixing rail 7, engage the engagement protrusion 2 with the engagement part 7a of the rail 7, and then engage the engagement protrusion 2 with the engagement part 7a of the rail 7.
b by moving and urging the mounting plate 5 to engage its engaging claw portion 5a, thereby moving the case 1 onto the rail 7.
It is fixed at Thus, the case 1 is integrally molded using a mold that is divided into upper and lower halves. A punching hole 8 corresponding to the portion 3a is inevitably formed. Note that 9 is a punching hole formed in the bottom of the case 1 for molding the engaging protrusion 2, and 10 is a shielding wall formed in the case 1 to partition each phase.
（考案が解決しようとする問題点）
然しながら、上述のようなケース１において
は、ケース１内の図示しない引外し機構或いは開
閉部等の充電部とレール７との間に型抜き孔８が
存在するようになるので、この充電部のレール７
に対する絶縁距離即ち対地間の絶縁距離が短くな
るという問題がある。このような問題をなくする
ためには、ケース１の底部に型抜き孔８が形成さ
れないように、支持脚３，４を形成すべく成形型
の一部に図中左右方向に移動し得る所謂スライド
型を設けることも考えられるが、これではスライ
ド型の移動量が大となることから成形型の構造が
複雑になるという問題点がある。(Problem to be Solved by the Invention) However, in the case 1 described above, a die-cut hole 8 exists between the rail 7 and a live part such as a tripping mechanism or opening/closing part (not shown) in the case 1. Therefore, the rail 7 of this live part
There is a problem that the insulation distance between the ground and the ground becomes shorter. In order to eliminate this problem, in order to prevent the punching hole 8 from being formed at the bottom of the case 1, a so-called so-called so-called mold that can be moved in the left and right directions in the figure is installed in a part of the mold to form the support legs 3 and 4. Although it is conceivable to provide a slide mold, this poses a problem in that the amount of movement of the slide mold becomes large and the structure of the mold becomes complicated.
そこで本考案の目的は、対地間の絶縁距離を大
きく成し得、しかも成形型の構造を簡単になし得
る回路しや断器の取付装置を提供するにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a mounting device for circuits and disconnectors that can increase the insulation distance to the ground and simplify the structure of the mold.
［考案の構成］
（問題点を解決するための手段）
本考案の回路しや断器の取付装置は、複数相に
対応する引外し機構及び開閉部を収納し各相間を
遮蔽する複数個の遮蔽壁を有するプラスチツク製
のケースを設け、側部に係合部を有し前記ケース
の外底部が載置されるレールを設け、前記ケース
の外底部に略Ｌ字状の一対の支持脚を突設し、こ
れら支持脚間に往復移動可能に嵌合支持され常に
は一方向に移動付勢されてその付勢により前記レ
ールの係合部に係合する係合爪部を有する取付板
を設け、前記一対の支持脚を、前記ケースの外底
部に、前記遮蔽壁にこれを上下に貫通する型抜き
孔が形成されるようにして一体成形するところに
特徴を有する。[Structure of the invention] (Means for solving the problem) The mounting device for circuit breakers and circuit breakers of the invention includes a plurality of circuit breakers that house tripping mechanisms and opening/closing parts corresponding to multiple phases and shield each phase. A plastic case having a shielding wall is provided, a rail having an engaging portion on the side and on which the outer bottom of the case is placed is provided, and a pair of substantially L-shaped support legs are provided on the outer bottom of the case. a mounting plate having a protruding engaging claw portion that is fitted and supported so as to be reciprocally movable between the support legs, is always biased to move in one direction, and engages with the engaging portion of the rail by the biasing; The device is characterized in that the pair of support legs are integrally molded on the outer bottom of the case so that cut-out holes are formed in the shielding wall to vertically penetrate the shielding wall.
（作用）
本考案の回路しや断器の取付装置は、ケースの
遮蔽壁を貫通する型抜き孔が形成されるようにし
て前記ケースの外底部に一対の支持脚を一体成形
したことにより、レールとケース内の複数相に対
応する引外し機構或いは開閉部との間の絶縁距離
を遮蔽壁により確保せんとするものである。(Function) The mounting device for circuit breakers and circuit breakers of the present invention has a pair of support legs integrally molded on the outer bottom of the case so that a punched hole passing through the shielding wall of the case is formed. The shielding wall is used to ensure an insulating distance between the rail and the tripping mechanism or opening/closing section corresponding to multiple phases within the case.
（実施例）
以下、本考案を三相式の回路しや断器に適用し
た一実施例につき第１図乃至第３図を参照して説
明する。(Example) Hereinafter, an example in which the present invention is applied to a three-phase circuit and circuit breaker will be described with reference to FIGS. 1 to 3.
１１は上面部が開口するプラスチツク製のケー
スで、これは上下二分割型の成形型で一体成形さ
れたもので、その上面部にプラスチツク製のカバ
ー１２が取付けられている。１３はケース１１の
一端部に取付けられた複数相例えば三相用の開閉
部で、これらは固定接触部１４と可動接触部１５
とから構成されている。１６は各相の開閉部１３
の相互間を遮蔽する遮蔽壁である。１７はケース
１１に回動可能に設けられた機構部で、これは、
カバー１２に回動可能に設けられた摘み１８が操
作されることにより三相用の開閉部１３の可動接
触部１５を駆動させるようになつている。１９は
ケース１１の他端部に取付けられる電磁コイル２
０等から構成された複数相例えば三相用の引外し
機構で、電磁コイル２０の一端部は可撓導体２１
により可動接触部１５に接続され、他端部はケー
ス１１の端部に取付けられた負荷側端子２２に接
続されている。２３，２３は各相の引外し機構１
９の相互間を遮蔽する遮蔽壁である。２４ａ，２
４ａはケース１１の外底部における段部２４の両
端部に形成された係合突条部であり、これらは成
形型に設けられたスライド型によつて成形され
る。２５，２５はケース１１の外底部に遮蔽壁２
３，２３に対応する位置に突設された一対の略Ｌ
字状の支持脚で、これらは夫々対向するように配
置されている。これらの支持脚２５，２５の成形
に際しては先端部２５ａ，２５ａに対応して遮蔽
壁２３，２３にこれらを貫通するようにして型抜
き孔２６，２６が形成されている。２７，２７は
ケース１１の外底部に支持脚２５，２５と所定の
間隔を存して突設された略Ｌ字形の支持脚であ
り、これらの成形のために負荷側端子２２の相互
間の遮蔽壁３５に型抜き孔（図示せず）が形成さ
れている。２８は支持脚２５，２５及び２７，２
７に往復移動可能に嵌合支持された取付板で、先
端部（第１図に示す左端部）に傾斜面２９ａを有
する係合爪部２９が形成されている。３０は取付
板２８の係合爪部２９寄りに形成された開口部、
３１は取付板２８の開口部３０の反対側に形成さ
れた開口部である。３２は開口部３０内に位置し
てケース１１の外底部に立設されたストツパで、
このストツパ３２と開口部３０の左端部３０ａと
の間にばね３３が介装されていて、取付板２８が
常には矢印Ａ方向に付勢されており、開口部３０
の右端部３０ｂがストツパ３２に当接されること
により取付板２８の矢印Ａ方向への移動が規制さ
れている。そして、ストツパ３２が開口部３０の
右端部３０ｂに当接した状態で、開口部３１の一
部がケース１１の外側に位置している。３４はケ
ース１１の外底部が載置されるレールで、その両
側部に係合突条部２４ａ，２４ａに係合する係合
部３４ａ及び係合爪部２９に係合する係合部３４
ｂが形成されている。尚、３６は固定接触子１４
の端部に形成された電源側端子である。 Reference numeral 11 denotes a plastic case with an open top, which is integrally molded using a mold that is divided into upper and lower halves, and a plastic cover 12 is attached to the top. 13 is an opening/closing part for multiple phases, for example, three phases, which is attached to one end of the case 11, and these are a fixed contact part 14 and a movable contact part 15.
It is composed of. 16 is the opening/closing part 13 for each phase
This is a shielding wall that shields each other from each other. Reference numeral 17 denotes a mechanism unit rotatably provided in the case 11, which is
When a knob 18 rotatably provided on the cover 12 is operated, the movable contact portion 15 of the three-phase opening/closing portion 13 is driven. Reference numeral 19 denotes an electromagnetic coil 2 attached to the other end of the case 11.
This is a tripping mechanism for a plurality of phases, for example, three phases, consisting of 0 etc., and one end of the electromagnetic coil 20 is connected to a flexible conductor 21.
The other end is connected to a load side terminal 22 attached to the end of the case 11. 23, 23 are tripping mechanisms 1 for each phase
This is a shielding wall that shields each other from each other. 24a,2
Reference numeral 4a denotes engagement protrusions formed at both ends of the stepped portion 24 at the outer bottom of the case 11, and these are molded by a slide mold provided in a mold. 25, 25 is a shielding wall 2 on the outer bottom of the case 11.
A pair of approximately L protruding at positions corresponding to 3 and 23
The support legs are shaped like letters and are arranged opposite each other. When molding these support legs 25, 25, punching holes 26, 26 are formed in the shielding walls 23, 23 corresponding to the tip ends 25a, 25a so as to pass through them. Reference numerals 27 and 27 are approximately L-shaped support legs that protrude from the outer bottom of the case 11 at a predetermined distance from the support legs 25 and 25. A punching hole (not shown) is formed in the shielding wall 35 . 28 are support legs 25, 25 and 27, 2
The mounting plate 7 is fitted and supported so as to be reciprocatingly movable, and an engaging claw portion 29 having an inclined surface 29a is formed at the tip portion (left end portion as shown in FIG. 1). 30 is an opening formed near the engaging claw portion 29 of the mounting plate 28;
31 is an opening formed on the opposite side of the opening 30 of the mounting plate 28. 32 is a stopper located inside the opening 30 and erected on the outer bottom of the case 11;
A spring 33 is interposed between the stopper 32 and the left end 30a of the opening 30, and the mounting plate 28 is always biased in the direction of arrow A.
The movement of the mounting plate 28 in the direction of the arrow A is restricted by the right end portion 30b of the mounting plate 28 coming into contact with the stopper 32. A portion of the opening 31 is located outside the case 11 with the stopper 32 in contact with the right end 30b of the opening 30. Reference numeral 34 denotes a rail on which the outer bottom of the case 11 is placed, and on both sides thereof there are engaging parts 34a that engage with the engaging protrusions 24a, 24a, and engaging parts 34 that engage with the engaging claw part 29.
b is formed. In addition, 36 is the fixed contact 14
This is a power supply side terminal formed at the end of the
而して、ケース１１をレール３４に固定する場
合には、ケース１１の係合突条部２４ａ，２４ａ
をレール３４の係合部３４ａに係合させた状態に
してそのケース１１をレール３４側たる下方向に
回動させると、取付板２８における係合爪部２９
の傾斜面２９ａがレール３４の係合部３４ｂに当
接してこれを押圧するようになり、従つて、取付
板２８は傾斜面２９ａの作用によりばね３３のば
ね力に抗して反矢印Ａ方向に移動される。その
後、レール３４の係合部３４ｂの端縁が傾斜面２
９ａの先端を乗り越えるようになると取付板２８
がばね３３のばね力により矢印Ａ方向に移動して
係合爪部２９が係合部３４ｂに係合し、以てケー
ス１１がレール３４に固定される。 Therefore, when fixing the case 11 to the rail 34, the engagement protrusions 24a, 24a of the case 11
When the case 11 is rotated downward toward the rail 34 while being engaged with the engaging portion 34a of the rail 34, the engaging claw portion 29 on the mounting plate 28
The inclined surface 29a comes into contact with and presses the engaging portion 34b of the rail 34, and therefore, the mounting plate 28 is moved in the opposite direction of arrow A against the spring force of the spring 33 due to the action of the inclined surface 29a. will be moved to Thereafter, the edge of the engaging portion 34b of the rail 34 is aligned with the inclined surface 2.
When you get over the tip of 9a, the mounting plate 28
is moved in the direction of arrow A by the spring force of the spring 33, and the engaging claw portion 29 engages with the engaging portion 34b, thereby fixing the case 11 to the rail 34.
又、ケース１１をレール３４から取外す場合に
は、取付板２８の開口部３１とケース１１の側面
部との間にドライバ等を差込んで、取付板２８を
ばね３３の弾発力に抗して反矢印Ａ方向へ移動さ
せ、この状態でケース１１を前述とは逆方向に回
動させてレール３４から取外す。 In addition, when removing the case 11 from the rail 34, insert a screwdriver or the like between the opening 31 of the mounting plate 28 and the side surface of the case 11, and move the mounting plate 28 against the elastic force of the spring 33. Then, in this state, the case 11 is rotated in the opposite direction to that described above and removed from the rail 34.
上記実施例によれば、次の効果を得ることがで
きる。即ち、遮蔽壁２３を貫通するように型抜き
孔２６及び遮蔽壁３５を貫通する型抜き孔（図示
せず）を形成してケース１１の外底部に支持脚２
５，２５及び２７，２７を一体成形したので、ケ
ース１１の成形型として支持脚２５，２５及び２
７，２７を成形するためにはスライド型を必要と
せず、成形型の構造を簡単になし得る。この場
合、ケース１１に係合突条部２４ａ，２４ａを成
形するためには成形型にスライド型を設ける必要
があるが、係合突条部２４ａ，２４ａを成形する
スライド型の移動量は例えば従来の支持脚３，３
及び４，４を成形するためのスライド型の移動量
に比し小さくて済むので、成形型の構造はそれほ
ど複雑にはならない。そして、レール３４とケー
ス１１内の引外し機構１９との間は遮蔽壁２３で
遮蔽されているので、ケース１１に支持脚２５を
成形すべく型抜き孔２６が形成されていても対地
間の絶縁距離を充分に大にすることができる。 According to the above embodiment, the following effects can be obtained. That is, a punching hole 26 is formed to pass through the shielding wall 23 and a punching hole (not shown) is formed to penetrate the shielding wall 35, and the supporting legs 2 are formed at the outer bottom of the case 11.
5, 25 and 27, 27 are integrally molded, the support legs 25, 25 and 2 can be used as a mold for the case 11.
A slide mold is not required to mold 7, 27, and the structure of the mold can be simplified. In this case, in order to mold the engagement protrusions 24a, 24a on the case 11, it is necessary to provide a slide mold in the mold, but the amount of movement of the slide mold for molding the engagement protrusions 24a, 24a is, for example, Conventional support legs 3,3
Since the amount of movement of the slide mold for molding the molds 4 and 4 is smaller than the amount of movement of the slide mold, the structure of the mold is not so complicated. Since the rail 34 and the tripping mechanism 19 inside the case 11 are shielded by the shielding wall 23, even if the die-cutting hole 26 is formed in the case 11 to form the support leg 25, the distance between the rail 34 and the tripping mechanism 19 in the case 11 is The insulation distance can be made sufficiently large.
尚、上記実施例ではケース１１の段部２４にレ
ール３４の係合部３４ａと係合させるべく係合突
条部２４ａ，２４ａを形成したが、このような係
合突条部２４ａ，２４ａを形成せずに段部２４自
体をレール３４の係合部３４ａに摩擦係合させる
ようにしてもよく、従つて、この場合には成形型
にスライド型を設ける必要はなくなる。 In the above embodiment, the engaging protrusions 24a, 24a were formed on the step 24 of the case 11 to engage with the engaging part 34a of the rail 34. The step portion 24 itself may be frictionally engaged with the engaging portion 34a of the rail 34 without forming the step portion 24. Therefore, in this case, there is no need to provide a slide mold in the mold.
［考案の効果］
以上の説明から明らかなように本考案によれ
ば、遮蔽壁を貫通する型抜き孔が形成されるよう
にしてケースの外底部に略Ｌ字状の一対の支持脚
を一体成形し、これら支持脚間に往復移動可能に
嵌合支持され常には一方向に移動付勢されてその
付勢により前記レールの係合部に係合する係合爪
部を有する取付板を設けたので、対地間の絶縁距
離を大きく成し得、しかも成形型の構造を簡単に
なし得るという効果を奏する。[Effect of the invention] As is clear from the above explanation, according to the invention, a pair of substantially L-shaped support legs are integrated into the outer bottom of the case so that a punched hole is formed through the shielding wall. A mounting plate is provided which has an engaging claw portion that is molded and supported so as to be reciprocally movable between these support legs, is always biased to move in one direction, and engages with the engaging portion of the rail by the biasing. Therefore, the insulation distance between the mold and the ground can be increased, and the structure of the mold can be simplified.
第１図乃至第３図は本考案の一実施例を示すも
ので、第１図は裏面から見た一部を破断した斜視
図、第２図は底面図、第３図は縦断側面図であ
り、第４図は従来例の第１図相当図である。
図中、１１はケース、１３は開閉部、１９は引
外し機構、２３は遮蔽壁、２５，２５は支持脚、
２６，２６は型抜き孔、２８は取付板、２９は係
合爪部、３４はレール、３４ｂは係合部を示す。
Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a partially cutaway perspective view seen from the back, Figure 2 being a bottom view, and Figure 3 being a longitudinal side view. 4 is a diagram corresponding to FIG. 1 of the conventional example. In the figure, 11 is a case, 13 is an opening/closing part, 19 is a tripping mechanism, 23 is a shielding wall, 25, 25 are support legs,
26, 26 are punching holes, 28 is a mounting plate, 29 is an engaging claw portion, 34 is a rail, and 34b is an engaging portion.
Claims (1)
し各相間を遮蔽する複数個の遮蔽壁を有するプラ
スチツク製のケースと、側部に係合部を有し前記
ケースの外底部が載置されるレールと、前記ケー
スの外底部に突設された略Ｌ字状の一対の支持脚
と、これら支持脚間に往復移動可能に嵌合支持さ
れ常には一方向に移動付勢されてその付勢により
前記レールの係合部に係合する係合爪部を有する
取付板とを具備し、前記一対の支持脚は、前記ケ
ースの外底部に、前記遮蔽壁にこれを上下に貫通
する型抜き孔が形成されるようにして一体成形さ
れていることを特徴とする回路しや断器の取付装
置。 A plastic case that houses a tripping mechanism and an opening/closing part corresponding to multiple phases and has a plurality of shielding walls for shielding between each phase, and has an engaging part on the side and an outer bottom of the case is placed. a pair of substantially L-shaped support legs protruding from the outer bottom of the case; the support legs are fitted and supported in a reciprocating manner between the support legs, and are always biased to move in one direction; and a mounting plate having an engaging claw portion that engages with the engaging portion of the rail by force, and the pair of support legs are provided with a type that vertically penetrates the shielding wall at the outer bottom of the case. A mounting device for a circuit or disconnector, characterized in that it is integrally molded with a punch hole formed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986194271U JPH0416341Y2 (en) | 1986-12-17 | 1986-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986194271U JPH0416341Y2 (en) | 1986-12-17 | 1986-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6399645U JPS6399645U (en) | 1988-06-28 |
| JPH0416341Y2 true JPH0416341Y2 (en) | 1992-04-13 |
Family
ID=31151091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986194271U Expired JPH0416341Y2 (en) | 1986-12-17 | 1986-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416341Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5300692B2 (en) * | 2009-11-09 | 2013-09-25 | Ｎｅｃトーキン株式会社 | Resin molded case for inductor and noise removal device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132472A (en) * | 1975-03-12 | 1976-11-17 | Siemens Ag | Device for mounting electric instrument |
| JPS58163123A (en) * | 1982-03-23 | 1983-09-27 | 三菱電機株式会社 | Mounting tool for safety breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59179404U (en) * | 1983-05-13 | 1984-11-30 | 株式会社戸上電機製作所 | Equipment attachment device to mounting rail |
-
1986
- 1986-12-17 JP JP1986194271U patent/JPH0416341Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132472A (en) * | 1975-03-12 | 1976-11-17 | Siemens Ag | Device for mounting electric instrument |
| JPS58163123A (en) * | 1982-03-23 | 1983-09-27 | 三菱電機株式会社 | Mounting tool for safety breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6399645U (en) | 1988-06-28 |
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