JPH07240125A - Bushing and manufacture of bushing - Google Patents

Bushing and manufacture of bushing

Info

Publication number
JPH07240125A
JPH07240125A JP2954294A JP2954294A JPH07240125A JP H07240125 A JPH07240125 A JP H07240125A JP 2954294 A JP2954294 A JP 2954294A JP 2954294 A JP2954294 A JP 2954294A JP H07240125 A JPH07240125 A JP H07240125A
Authority
JP
Japan
Prior art keywords
bushing
base side
tube
screw
porcelain
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.)
Withdrawn
Application number
JP2954294A
Other languages
Japanese (ja)
Inventor
Nobuo Tashiro
信男 田代
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYUSHU HENATSUKI KK
Original Assignee
KYUSHU HENATSUKI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KYUSHU HENATSUKI KK filed Critical KYUSHU HENATSUKI KK
Priority to JP2954294A priority Critical patent/JPH07240125A/en
Publication of JPH07240125A publication Critical patent/JPH07240125A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Insulators (AREA)
  • Insulating Bodies (AREA)

Abstract

PURPOSE:To provide a bushing capable of fixing a support metal fitting to a bushing insulator disregarding adhesion. CONSTITUTION:A base part-side screw part 22 and a top end-side screw part 23 are provided by a busing insulator 2 itself on the base part side outer circumference and the top end outer circumference of the bushing insulator. A support metal fitting 4 has a screw hole 24 screwed to the base part-side screw part 22, and a terminal fixing metal fitting 8' has a screw hole 25 screwed to the top end-side screw part 23. The support metal fitting 4 is fixed to the base part-side screw part 22 of the bushing insulator 2 by the screwing of the screw hole 24, and the terminal fixing metal fitting 8' is fixed to the top end-side screw part 23 by the screwing of the screw hole 25.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ブッシング碍管の基部
側外周に支持金具が取付けられている構造のブッシング
及びその製造方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bushing having a structure in which a support fitting is attached to the outer periphery of a bushing insulator tube on the base side and a method for manufacturing the bushing.

【0002】[0002]

【従来の技術】図4に示すように、従来のブッシング1
は磁器成形品よりなるブッシング碍管2を備え、該ブッ
シング碍管2の外周には複数段にひだ部2aが一体成形
で設けられている。ブッシング碍管2の基部側外周に
は、接着剤としてのセメント層3を介して支持金具4が
取付けられている。またブッシング碍管2の先端側外周
には、接着剤としてのセメント層5を介して気中端子8
を取付けられるための端子固定金具6が取付けられてい
る。
2. Description of the Related Art As shown in FIG.
Is provided with a bushing porcelain tube 2 made of a porcelain molded product, and pleats 2a are integrally formed on the outer periphery of the bushing porcelain tube 2 in multiple stages. A support metal fitting 4 is attached to the outer periphery of the bushing insulator tube 2 on the base side via a cement layer 3 as an adhesive. Further, the air terminal 8 is provided on the outer periphery of the bushing insulator tube 2 on the tip side through a cement layer 5 as an adhesive.
The terminal fixing metal fitting 6 for attaching the is attached.

【0003】ブッシング碍管2の孔部2bには導体7が
通され、該導体7の先端は気中端子8のネジ孔に螺着に
より接続されている。気中端子8は固定ボルト9で端子
固定金具6に固定されている。ブッシング碍管2の先端
と気中端子8の下面との間にはパッキン10が介在され
ている。ブッシング碍管2の基端には導体7を貫通させ
て端板11が当接され、端板11は導体7に螺合された
ナット12で固定されている。導体7には、図示しない
他の導体の端子を接続するためのナット13が螺合され
ている。
A conductor 7 is passed through the hole 2b of the bushing insulator tube 2, and the tip of the conductor 7 is connected to the screw hole of the aerial terminal 8 by screwing. The aerial terminal 8 is fixed to the terminal fixing bracket 6 with a fixing bolt 9. A packing 10 is interposed between the tip of the bushing insulator tube 2 and the lower surface of the aerial terminal 8. An end plate 11 is brought into contact with the base end of the bushing insulator tube 2 by penetrating the conductor 7, and the end plate 11 is fixed by a nut 12 screwed to the conductor 7. A nut 13 for connecting a terminal of another conductor (not shown) is screwed onto the conductor 7.

【0004】このようなブッシング1は、油入り変圧器
のケースの如き機器ケース14の上に配置され、機器ケ
ース14の上面の孔15にブッシング碍管2の下部が挿
入されている。ブッシング1の支持金具4は、機器ケー
ス14の上面に溶接で設置されている金属製で環状をし
た座部16上にその上面における凹部18に位置決めさ
れているパッキン17を介して載置されている。支持金
具4は、座部16に植設されたボルト19を該支持金具
4のボルト通し孔20に通し、該支持金具4の上に出た
ボルト19の先端部にナット21を螺合し、該ナット2
1の締結により機器ケース14に固定されている。
Such a bushing 1 is arranged on a device case 14 such as a case of an oil-filled transformer, and the lower part of the bushing insulator tube 2 is inserted into a hole 15 on the upper surface of the device case 14. The support metal fitting 4 of the bushing 1 is mounted on a metallic annular seat portion 16 installed by welding on the upper surface of the equipment case 14 via a packing 17 positioned in a recess 18 on the upper surface. There is. In the support fitting 4, the bolt 19 planted in the seat portion 16 is passed through the bolt through hole 20 of the support fitting 4, and the nut 21 is screwed onto the tip of the bolt 19 protruding above the support fitting 4. The nut 2
It is fixed to the equipment case 14 by fastening 1.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、このよ
うな従来のブッシング1では、支持金具4がブッシング
碍管2にセメント層3で固定されているので、セメント
が劣化すると油漏れが発生したり、ブッシング碍管2か
ら支持金具4の外れたりする問題点があった。
However, in such a conventional bushing 1, since the support fitting 4 is fixed to the bushing porcelain bushing 2 by the cement layer 3, if cement deteriorates, oil leakage or bushing occurs. There was a problem that the support fitting 4 came off from the porcelain bushing 2.

【0006】また、セメントによる接着作業が必要なた
め、機械化による量産化ができず、コスト高になる問題
点があった。
Further, since cementing work is required, mass production cannot be achieved by mechanization, and there is a problem that the cost becomes high.

【0007】本発明の目的は、接着によらずに支持金具
をブッシング碍管に固定できるブッシング及びその製造
方法を提供することにある。
An object of the present invention is to provide a bushing capable of fixing a support fitting to a bushing insulator tube without using adhesion and a method for manufacturing the bushing.

【0008】本発明の目的は、接着によらずに支持金具
と気中端子を取付ける端子固定金具をブッシング碍管に
固定できるブッシング及びその製造方法を提供すること
にある。
An object of the present invention is to provide a bushing capable of fixing a support fitting and a terminal fixing fitting for attaching an aerial terminal to a bushing insulator tube without using an adhesive and a manufacturing method thereof.

【0009】本発明の目的は、接着によらずに支持金具
と気中端子を取付ける端子固定金具をブッシング碍管に
固定できるブッシングの製造方法を提供することにあ
る。
An object of the present invention is to provide a method for manufacturing a bushing which can fix a support fitting and a terminal fixing fitting for attaching an aerial terminal to a bushing insulator tube without using adhesion.

【0010】[0010]

【課題を解決するための手段】上記の目的を達成する本
発明の手段を説明すると、次の通りである。
The means of the present invention for achieving the above object will be described below.

【0011】本発明では、ブッシング碍管の基部側外周
にブッシング碍管自体で形成した基部側ネジ部を設け
る。また支持金具にも、基部側ネジ部と螺合するネジ孔
を形成する。そしてブッシング碍管の基部側ネジ部に支
持金具のネジ孔を螺合させて、支持金具をブッシング碍
管に固定する。即ち、本発明はネジ止め構造を用いて、
支持金具をブッシング碍管に取付けることを特徴とす
る。
According to the present invention, the base side screw portion formed of the bushing porcelain tube itself is provided on the outer periphery of the bushing porcelain tube on the base side. Further, the support fitting is also formed with a screw hole to be screwed into the base side screw part. Then, the screw holes of the support fitting are screwed into the threaded portions on the base side of the bushing insulator tube to fix the support fitting to the bushing insulator tube. That is, the present invention uses a screw fastening structure,
It is characterized in that the support fitting is attached to the bushing insulator tube.

【0012】ここでブッシング碍管の基部側外周とは、
支持金具が取付けられるブッシング碍管の部分の外周を
意味するものであり、ブッシング碍管の端部を意味する
ものではない。
Here, the outer circumference of the bushing insulator tube on the base side means
This means the outer circumference of the portion of the bushing insulator tube to which the support fitting is attached, and does not mean the end of the bushing insulator tube.

【0013】ブッシング碍管の先端には気中端子が取付
けられているが、この気中端子を取付ける場合にも、ネ
ジ止め構造を採用することができる。その場合には、ブ
ッシング碍管の先端側外周にブッシング碍管自体で形成
した先端側ネジ部を設ける。また気中端子を取付けるた
めの端子固定金具にも、先端側ネジ部と螺合するネジ孔
を形成する。そしてブッシング碍管の先端側ネジ部に端
子固定金具のネジ孔を螺合させて、端子固定金具をブッ
シング碍管の先端に固定する。尚気中端子と端子固定金
具とは、一体であっても、また別体であってもよい。気
中端子と端子固定金具とが別体の場合には、端子固定金
具をブッシング碍管の先端に固定した後に、端子固定金
具に気中端子を固定してもよい。
An air terminal is attached to the tip of the bushing porcelain tube, but a screwing structure can be adopted even when the air terminal is attached. In that case, a tip side threaded portion formed by the bushing insulator tube itself is provided on the outer periphery of the bushing insulator tube on the tip side. In addition, the terminal fixing metal fitting for attaching the air terminal is also formed with a screw hole to be screwed into the tip side screw portion. Then, the screw hole of the terminal fixing metal fitting is screwed into the threaded portion on the tip side of the bushing porcelain tube to fix the terminal fixing metal fitting to the tip of the bushing porcelain tube. The aerial terminal and the terminal fixing bracket may be integrated or may be separate bodies. When the air terminal and the terminal fixing bracket are separate bodies, the air fixing terminal may be fixed to the terminal fixing bracket after fixing the terminal fixing bracket to the tip of the bushing insulator tube.

【0014】このようなブッシング碍管を製造する場合
には、ブッシング碍管の基部側外周及び先端外周にネジ
部を直接形成する必要がある。ブッシング碍管を焼成に
より成形する際に、一緒にネジ部を成形することも全く
不可能ではないが、焼成による成形では寸法精度が出し
にくいため、かなり歩留まりが悪くなる。また切削加工
のみにより、ブッシング碍管の所定部分にネジ部を形成
することも技術的には可能であるが、大量生産には不向
きである。そこで本発明の製造方法では、ブッシング碍
管を焼成により成形する際に、一緒にネジ部(基部側ネ
ジ部,先端側ネジ部)の基礎となる部分を成形してお
く。この基礎となるネジ部は、形成しようとするネジ部
の寸法よりも寸法が多少大きくなるように形成する。そ
して得られた基礎となるネジ部に切削加工を施して所定
の形状のネジ部(基部側ネジ部,先端側ネジ部)を形成
する。この場合、基部側ネジ部の切削加工は、例えばダ
イヤモンドバイトを用いて行う。
When manufacturing such a bushing porcelain tube, it is necessary to directly form a threaded portion on the outer periphery of the bushing porcelain tube on the base side and the outer periphery of the tip. When the bushing insulator tube is molded by firing, it is not impossible at all to form the threaded portion together, but since the dimensional accuracy is difficult to obtain by firing, the yield is considerably reduced. Although it is technically possible to form a threaded portion in a predetermined portion of the bushing insulator tube only by cutting, it is not suitable for mass production. Therefore, in the manufacturing method of the present invention, when the bushing porcelain bushing is molded by firing, the base parts of the screw parts (base side screw part, tip side screw part) are formed together. The threaded portion as the base is formed to have a size slightly larger than that of the threaded portion to be formed. Then, the obtained screw portion as a base is subjected to cutting processing to form a screw portion (base side screw portion, tip side screw portion) having a predetermined shape. In this case, the base side threaded portion is cut using, for example, a diamond cutting tool.

【0015】[0015]

【作用】本発明のように、ブッシング碍管の基部側外周
にブッシング碍管自体で形成する基部側ネジ部を設け、
ブッシング碍管の基部側ネジ部に支持金具をそのネジ孔
の螺合により固定するネジ止め構造を用いると、接着に
よらずにブッシング碍管の基部側外周に支持金具を固定
できる。またブッシング碍管の先端に気中端子を固定す
るための端子固定金具を取付ける場合にも、同様にネジ
止め構造を用いると、接着によらずにブッシング碍管に
端子固定金具を固定できる。
As in the present invention, the base side screw portion formed by the bushing porcelain tube itself is provided on the outer periphery of the bushing porcelain tube on the base side.
By using a screwing structure in which the support fitting is fixed to the threaded portion on the base side of the bushing porcelain tube by screwing the screw holes, the support fitting can be fixed to the outer circumference of the bushing porcelain tube on the base side without adhesion. Also, when a terminal fixing metal fitting for fixing the aerial terminal is attached to the tip of the bushing porcelain bushing, the screw fixing structure can also be used to fix the terminal fixing metal fixture to the bushing porcelain bushing without using adhesion.

【0016】本発明の製造方法のように、ネジ部付きの
ブッシング碍管の製造を、ブッシング碍管の成形時に、
ブッシング碍管の基部側外周や先端側外周にブッシング
碍管自体でネジ部(基部側ネジ部,先端側ネジ部)の基
礎なるネジ部を成形すると、最初からネジ部を切削加工
で形成する場合よりも、簡単に能率よくネジ部の形成を
行うことができる。
As in the manufacturing method of the present invention, when manufacturing a bushing porcelain tube with a threaded portion, the bushing porcelain tube is molded at the time of molding.
Bushing porcelain tube base outer circumference and tip side outer circumference form the threaded portion (base side threaded portion, tip side threaded portion) of the bushing porcelain tube itself as a base, so that the threaded portion is formed by cutting from the beginning. Therefore, the screw part can be formed easily and efficiently.

【0017】[0017]

【実施例】図1〜図3は、本発明に係るブッシング碍管
の一実施例を示したものである。本実施例のブッシング
1においては、磁器製のブッシング碍管2の基部側外周
即ち支持金具の取付部分に、ブッシング碍管自体で基部
側ネジ部22が形成され、またブッシング碍管2の先端
側外周にブッシング碍管自体で先端側ネジ部23が形成
されている。
1 to 3 show an embodiment of a bushing insulator tube according to the present invention. In the bushing 1 of this embodiment, the bushing porcelain tube 2 itself has a base-side threaded portion 22 formed on the outer periphery of the porcelain bushing porcelain bushing 2 on the base side, that is, the mounting portion of the support fitting, and the bushing porcelain bushing 2 has a bushing on the tip side outer periphery. The tip side screw portion 23 is formed by the porcelain insulator itself.

【0018】支持金具4には基部側ネジ部22と螺合す
るネジ孔が形成されており、支持金具4はブッシング碍
管2の基部側ネジ部22にネジ孔24を螺合させて、ブ
ッシン碍管2に固定されている。
The support fitting 4 is formed with a screw hole to be screwed into the base side threaded portion 22, and the support fitting 4 has a screw hole 24 screwed into the base side threaded portion 22 of the bushing porcelain tube 2 to form a bushing insulator tube. It is fixed at 2.

【0019】ブッシング碍管2の先端側に取付ける端子
固定金具8´は、板状の気中端子8´aを一体に備えて
いる。そのため端子固定金具8´は、気中端子8´aと
この気中端子8´aの基端に一体に設けられてたキャッ
プ状部8´bとから構成されている。気中端子8´aに
は、図示しない相手端子との接続時にボルトを通す接続
用孔8´cが設けられている。図3に示すように、キャ
ップ状部8´b内には、ネジ孔25が形成されている。
端子固定金具8´には、キャップ状部8´b内の中央に
位置させて接続導体26のネジ部26aが螺着されてい
る。接続導体26はキャップ状部8´bから突出する長
さを有しており、キャップ状部8´bから突出する部分
には筒状の圧着部26bが設けられている。接続導体2
6の圧着部26bには、導体7の先端部が挿入されて圧
着接続されている。
The terminal fixing metal fitting 8'attached to the tip side of the bushing insulator tube 2 is integrally provided with a plate-shaped air terminal 8'a. Therefore, the terminal fixing member 8'is composed of an aerial terminal 8'a and a cap-shaped portion 8'b integrally provided at the base end of the aerial terminal 8'a. The air terminal 8'a is provided with a connecting hole 8'c through which a bolt is inserted when connecting to a mating terminal (not shown). As shown in FIG. 3, a screw hole 25 is formed in the cap-shaped portion 8'b.
The screw portion 26a of the connecting conductor 26 is screwed to the terminal fixing metal fitting 8 ', which is located in the center of the cap-shaped portion 8'b. The connection conductor 26 has a length protruding from the cap-shaped portion 8'b, and a cylindrical crimp portion 26b is provided at the portion protruding from the cap-shaped portion 8'b. Connection conductor 2
The tip portion of the conductor 7 is inserted into the crimp portion 26b of No. 6 and crimp-connected.

【0020】このような端子固定金具8´は、該端子固
定金具8´に支持されている導体7をブッシング碍管2
の孔部2bに通し、ブッシング碍管2の先端側ネジ部2
3にキャップ状部8´bを螺合することによりブッシン
グ碍管2の先端側に固定されている。気中端子8´aと
一体になっているキャップ状部8´bの端板部とブッシ
ング碍管2の先端部との間にはパッキン10が介在され
ている。
In such a terminal fixing member 8 ′, the conductor 7 supported by the terminal fixing member 8 ′ is connected to the bushing insulator tube 2.
Through the hole 2b of the bushing insulator tube 2
It is fixed to the tip side of the bushing insulator tube 2 by screwing a cap-shaped portion 8′b onto the bushing 3. A packing 10 is interposed between the end plate portion of the cap-shaped portion 8'b that is integrated with the air terminal 8'a and the tip portion of the bushing insulator tube 2.

【0021】ブッシング碍管2の基端には導体7を貫通
させて端板11が当接されており、この端板11は導体
7に螺合されたナット12で固定されている。導体7に
は、図示しない他の導体の端子を接続するためのナット
13が螺合されている。
An end plate 11 is in contact with the base end of the bushing insulator tube 2 so as to penetrate the conductor 7, and the end plate 11 is fixed by a nut 12 screwed to the conductor 7. A nut 13 for connecting a terminal of another conductor (not shown) is screwed onto the conductor 7.

【0022】図2に示すように、このような構造のブッ
シング1を油入り変圧器のケースの如き機器ケース14
に取付ける場合には、次のようにする。まず機器ケース
14の上面の孔15にブッシング碍管2の下部を挿入す
る。その際にブッシング碍管2の下側段部2cと機器ケ
ース14の壁面との間にパッキン18を介在させる。そ
して機器ケース14の上面に植設されたボルト19に支
持金具4のボルト通し孔20を通し、支持金具4の上に
出たボルト19の先端部にナット21を螺合させ、ナッ
ト21の締結により機器ケース14への固定を完了す
る。
As shown in FIG. 2, the bushing 1 having such a structure is used as an equipment case 14 such as an oil-filled transformer case.
When installing on, do the following. First, the lower portion of the bushing insulator tube 2 is inserted into the hole 15 on the upper surface of the device case 14. At that time, the packing 18 is interposed between the lower step portion 2c of the bushing insulator tube 2 and the wall surface of the device case 14. Then, the bolt 19 that is planted on the upper surface of the device case 14 is passed through the bolt through hole 20 of the support fitting 4, and the nut 21 is screwed onto the tip end portion of the bolt 19 that is exposed above the support fitting 4, and the nut 21 is fastened. This completes the fixing to the device case 14.

【0023】本実施例のブッシング1のように、ブッシ
ング碍管2の基部側外周に基部側ネジ部22を設け、ブ
ッシング碍管2の基部側ネジ部22に支持金具4をその
ネジ孔24の螺合により固定し、またブッシング碍管2
の先端側外周に先端側ネジ部23を設け、ブッシング碍
管2の先端側ネジ部23に端子固定金具8´をそのネジ
孔25の螺合により固定すると、接着によらずにブッシ
ング碍管2に支持金具4と端子固定金具8´とを固定で
きる。
As in the bushing 1 of the present embodiment, a base side screw portion 22 is provided on the outer periphery of the bushing insulator tube 2 on the base portion side, and the support metal fitting 4 is screwed into the screw hole 24 of the bushing insulator tube 2 on the base portion side screw portion 22. Fixed with a bushing insulator tube 2
When the tip side screw part 23 is provided on the tip side outer periphery of the bushing insulator tube and the terminal fixing metal fitting 8 ′ is fixed to the tip side screw part 23 of the bushing insulator tube 2 by screwing the screw hole 25, the bushing insulator tube 2 is supported without being adhered. The metal fitting 4 and the terminal fixing metal fitting 8'can be fixed.

【0024】また、このようにネジ締め即ちネジ止め構
造によりブッシング碍管2に支持金具4と端子固定金具
8´とを取付けると、接着作業が不要なため、機械化に
よる量産化ができ、コストの低減を図ることができる。
When the support metal fitting 4 and the terminal fixing metal fitting 8'are attached to the bushing insulator tube 2 by the screw tightening, that is, the screw fixing structure as described above, since the bonding work is unnecessary, the mass production can be realized by the mechanization and the cost can be reduced. Can be achieved.

【0025】また、端子固定金具8´に気中端子8´a
を一体に設けて、端子固定金具をブッシング碍管2にネ
ジにより取付けると、端子固定金具8´の小型化を図る
ことができる。
Further, the air fixing terminal 8'a is attached to the terminal fixing metal fitting 8 '.
Is integrally provided and the terminal fixing metal fitting is attached to the bushing insulator tube 2 with a screw, the size of the terminal fixing metal fitting 8'can be reduced.

【0026】次に、前述したようなブッシング1の製造
方法について説明する。本実施例では、ブッシング碍管
2の成形時に、ブッシング碍管2の基部側外周にブッシ
ング碍管自体で基部側ネジ部22を成形すると共にブッ
シング碍管2の先端側外周にブッシング碍管自体で先端
側ネジ部23を成形する。次に、該ブッシング碍管2に
ゆう薬をつけて乾燥させた後に、該ブッシング碍管2を
炉に入れて所定の温度で燒成する。かくして得られたブ
ッシング碍管2の基部側ネジ部22と先端側ネジ部23
とを、例えばダイヤモンドバイトを用いて切削加工して
所定の形状に仕上げる。次に、該ブッシング碍管2の基
部側ネジ部22に支持金具4をそのネジ孔24を螺合し
て固定すると共に先端側ネジ部23に端子固定金具8´
をそのネジ孔25を螺合して固定する。
Next, a method of manufacturing the bushing 1 as described above will be described. In the present embodiment, when the bushing insulator tube 2 is molded, the bushing insulator tube 2 itself is molded into the base side threaded portion 22 on the outer periphery of the bushing insulator tube 2 and the bushing insulator tube 2 is attached to the tip end side threaded portion 23 on the tip side outer periphery of the bushing insulator tube 2. To mold. Next, the bushing porcelain bushing 2 is dipped in a powder and dried, and then the bushing porcelain bushing 2 is placed in a furnace and fired at a predetermined temperature. The base side threaded portion 22 and the tip side threaded portion 23 of the bushing insulator tube 2 thus obtained
And are cut into a predetermined shape by using a diamond bite, for example. Next, the support fitting 4 is fixed to the threaded portion 22 on the base side of the bushing insulator tube 2 by screwing the screw hole 24, and the terminal fitting 8 ′ is attached to the threaded portion 23 on the tip side.
Is fixed by screwing its screw hole 25.

【0027】このようにしてブッシング碍管2に基部側
ネジ部22と先端側ネジ部23とを形成すると、最初か
ら基部側ネジ部22と先端側ネジ部23とを切削加工で
形成する場合より簡単に能率よくこれらネジ部22,2
3の形成を行うことができる。
When the base-side threaded portion 22 and the tip-sided threaded portion 23 are formed on the bushing insulator tube 2 in this manner, it is easier than when the base-sided threaded portion 22 and the tip-sided threaded portion 23 are formed by cutting from the beginning. Efficiently these screw parts 22,2
3 can be formed.

【0028】なお、ブッシング碍管2の先端側の端子固
定金具8´は、ネジによる取付けでなく、図4に示した
従来例と同様に接着剤としてのセメント層5による取付
けでもよい。
The terminal fixing metal fitting 8'on the tip end side of the bushing insulator tube 2 may be attached by the cement layer 5 as an adhesive as in the conventional example shown in FIG.

【0029】また、ブッシング碍管2に対するひだ部2
a,基部側ネジ部22,先端側ネジ部23の形成は、生
乾きの碍管素材に切削加工することにより行うこともで
きる。
The pleats 2 for the bushing insulator tube 2
The formation of a, the base-side screw portion 22 and the tip-side screw portion 23 can also be performed by cutting a raw dry porcelain tube material.

【0030】[0030]

【発明の効果】以上説明したように本発明に係るブッシ
ング及びその製造方法によれば、下記のような優れた効
果を得ることができる。
As described above, according to the bushing and the method for manufacturing the same of the present invention, the following excellent effects can be obtained.

【0031】本発明のブッシングのように、ブッシング
碍管の基部側外周にブッシング碍管自体で形成する基部
側ネジ部を設け、ブッシング碍管の基部側ネジ部に支持
金具をそのネジ孔の螺合により固定すると、接着によら
ずにブッシング碍管の基部側外周に支持金具を固定でき
る。このような構造によれば、能率よくブッシング碍管
の組立て作業ができ、コストの低減を図ることができ
る。
Like the bushing of the present invention, a base side thread portion formed by the bushing porcelain tube itself is provided on the outer periphery of the bushing porcelain tube on the base side, and a support fitting is fixed to the base side screw portion of the bushing porcelain tube by screwing the screw holes. Then, the support fitting can be fixed to the outer periphery of the bushing insulator tube on the base side without using adhesion. With such a structure, the bushing insulator tube can be assembled efficiently and the cost can be reduced.

【0032】またブッシング碍管の先端に気中端子を固
定するための端子固定金具を取付ける場合にも、同様に
ネジ止め構造を用いると、接着によらずにブッシング碍
管に端子固定金具を固定できるため、接着作業がなくな
って、機械化による量産化ができ、コストの低減を図る
ことができる。
Further, when a terminal fixing metal fitting for fixing the aerial terminal to the tip of the bushing porcelain tube is mounted, if the screw fixing structure is similarly used, the terminal fixing metal fitting can be fixed to the bushing porcelain tube without using adhesion. Since the bonding work is eliminated, it can be mass-produced by mechanization, and the cost can be reduced.

【0033】また本発明の製造方法によれば、ブッシン
グ碍管の成形時にブッシング碍管の基部側外周や先端側
外周にブッシング碍管自体でネジ部(基部側ネジ部,先
端側ネジ部)の基礎となるネジ部を成形し、後に切削加
工で仕上げをするため、最初からネジ部を切削加工で形
成する場合よりも、簡単に能率よくネジ部の形成を行う
ことができる。
Further, according to the manufacturing method of the present invention, at the time of molding the bushing porcelain bushing, the bushing porcelain tube itself serves as a basis for the threaded portion (base side threaded portion, tip side threaded portion) on the outer periphery of the bushing porcelain tube on the base side and the outer periphery on the tip side. Since the threaded portion is formed and then finished by cutting, the threaded portion can be formed more easily and efficiently than when the threaded portion is formed by cutting from the beginning.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係るブッシングで用いているブッシン
グ碍管の一実施例を示す正面図である。
FIG. 1 is a front view showing an embodiment of a bushing insulator tube used in a bushing according to the present invention.

【図2】本発明に係るブッシングの一実施例の使用状態
を示す一部縦断正面図である。
FIG. 2 is a partially longitudinal front view showing a usage state of an embodiment of the bushing according to the present invention.

【図3】図2に示すブッシングの上部構造を示す縦断面
図である。
FIG. 3 is a vertical sectional view showing an upper structure of the bushing shown in FIG.

【図4】従来のブッシングの使用状態を示す一部縦断正
面図である。
FIG. 4 is a partially longitudinal front view showing a usage state of a conventional bushing.

【符号の説明】[Explanation of symbols]

1 ブッシング 2 ブッシング碍管 2a ひだ部 2b 孔部 2c 下側段部 3 セメント層 4 支持金具 5 セメント層 6 端子固定金具 7 導体 8 気中端子 8´ 端子固定金具 8´a 気中端子 8´b キャップ状部 8´c 接続用孔 9 固定ボルト 10 パッキン 11 端板 12,13 ナット 14 機器ケース 15 孔 16 座部 17 パッキン 18 パッキン 19 ボルト 20 ボルト通し孔 21 ナット 22 基部側ネジ部 23 先端側ネジ部 24,25 ネジ孔 26 接続導体 26a ネジ部 26b 圧着部 1 Bushing 2 Bushing insulator 2a Fold 2b Hole 2c Lower step 3 Cement layer 4 Supporting metal 5 Cement layer 6 Terminal fixing metal 7 Conductor 8 Air terminal 8'Terminal fixing metal 8'a Air terminal 8'b Cap Shaped part 8'c Connection hole 9 Fixing bolt 10 Packing 11 End plate 12,13 Nut 14 Device case 15 Hole 16 Seat part 17 Packing 18 Packing 19 Bolt 20 Bolt through hole 21 Nut 22 Base side screw part 23 Tip side screw part 24, 25 screw hole 26 connection conductor 26a screw part 26b crimping part

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 ブッシング碍管の基部側外周に支持金具
が取付けられている構造のブッシングにおいて、 前記ブッシング碍管の基部側外周に該ブッシング碍管自
体で形成された基部側ネジ部が設けられ、前記支持金具
に前記基部側ネジ部と螺合するネジ孔が形成され、前記
ブッシング碍管の前記基部側ネジ部に前記支持金具が前
記ネジ孔を螺合して固定されていることを特徴とするブ
ッシング。
1. A bushing having a structure in which a support metal fitting is attached to the outer periphery of the bushing insulator tube on the base side, and a base side screw portion formed of the bushing insulator tube itself is provided on the outer periphery of the bushing insulator pipe on the base side, and the support is provided. A bushing characterized in that a metal screw is formed with a screw hole to be screwed into the base side screw part, and the support metal part is fixed to the base side screw part of the bushing insulator tube by screwing the screw hole into the screw hole.
【請求項2】 ブッシング碍管の基部側外周に支持金具
が取付けられている構造のブッシングの製造方法におい
て、 前記ブッシング碍管の成形時に該ブッシング碍管の基部
側外周に該ブッシング碍管自体で基部側ネジ部を成形
し、 得られた前記基部側ネジ部を切削加工して所定の形状と
し、 次に前記ブッシング碍管の基部側ネジ部に前記支持金具
をそのネジ孔を螺合して固定することを特徴とするブッ
シングの製造方法。
2. A method of manufacturing a bushing having a structure in which a support metal fitting is attached to the outer periphery of the bushing porcelain tube on the base side, wherein the bushing porcelain tube itself has a base side threaded portion on the outer periphery of the bushing porcelain tube on the base side when molding the bushing porcelain bushing. Characterized by cutting the obtained base side threaded portion into a predetermined shape, and then fixing the support fitting to the base side threaded portion of the bushing porcelain tube by screwing its screw hole. Bushing manufacturing method.
【請求項3】 ブッシング碍管の基部側外周に支持金具
が取付けられ、ブッシング碍管の先端に気中端子が取付
けられている構造のブッシング管において、 前記ブッシング碍管の基部側外周に該ブッシング碍管自
体で形成された基部側ネジ部が設けられ、前記支持金具
に前記基部側ネジ部と螺合するネジ孔が形成され、前記
ブッシング碍管の前記基部側ネジ部に前記支持金具が前
記ネジ孔の螺合により固定され、 前記ブッシング碍管の先端側外周に該ブッシング碍管自
体で形成された先端側ネジ部が設けられ、前記気中端子
を取付けるための端子固定金具に前記先端側ネジ部と螺
合するネジ孔が形成され、前記ブッシング碍管の先端側
ネジ部に前記端子固定金具が前記ネジ孔の螺合により固
定されていることを特徴とするブッシング。
3. A bushing tube having a structure in which a support fitting is attached to the outer periphery of the bushing porcelain tube on the base side, and an air terminal is attached to the tip of the bushing porcelain tube, wherein the bushing porcelain tube itself is attached to the outer periphery of the bushing porcelain tube on the base side. The formed base side screw part is provided, the support fitting is formed with a screw hole to be screwed with the base side screw part, and the support fitting is screwed to the base side screw part of the bushing insulator pipe. The bushing insulator tube is provided with a tip side screw portion formed on the tip side outer periphery of the bushing insulator tube, and a screw for screwing the tip side screw portion to a terminal fixing metal fitting for mounting the air terminal. A bushing in which a hole is formed, and the terminal fixing member is fixed to a threaded portion on the tip side of the bushing insulator tube by screwing the screw hole.
【請求項4】 ブッシング碍管の基部側外周に支持金具
が取付けられ、ブッシング碍管の先端側に気中端子が取
付けられている構造のブッシングの製造方法において、 前記ブッシング碍管の成形時に、該ブッシング碍管の基
部側外周と先端側外周とに該ブッシング碍管自体で基部
側ネジ部と先端側ネジ部とを成形し、 得られた前記基部側ネジ部と前記先端側ネジ部とを切削
加工して所定の形状とし、 次に該ブッシング碍管の該基部側ネジ部に前記支持金具
をそのネジ孔を螺合して固定すると共に該先端側ネジ部
に前記気中端子を取付けるための端子固定金具をそのネ
ジ孔を螺合して固定することを特徴とするブッシングの
製造方法。
4. A method for manufacturing a bushing having a structure in which a support fitting is attached to the outer periphery of the bushing porcelain tube on the base side and an air terminal is attached to the tip side of the bushing porcelain bushing, wherein the bushing porcelain bushing is formed when the bushing porcelain bushing is molded. A base side screw part and a tip side screw part are formed on the base side outer periphery and the tip side outer periphery of the bushing insulator tube itself, and the obtained base side screw part and the tip side screw part are cut to a predetermined size. Then, the support fitting is fixed to the threaded portion on the base side of the bushing porcelain tube by screwing the screw hole, and the terminal fitting for attaching the aerial terminal is attached to the threaded portion on the tip side. A method for manufacturing a bushing, which comprises screwing and fixing a screw hole.
JP2954294A 1994-02-28 1994-02-28 Bushing and manufacture of bushing Withdrawn JPH07240125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2954294A JPH07240125A (en) 1994-02-28 1994-02-28 Bushing and manufacture of bushing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2954294A JPH07240125A (en) 1994-02-28 1994-02-28 Bushing and manufacture of bushing

Publications (1)

Publication Number Publication Date
JPH07240125A true JPH07240125A (en) 1995-09-12

Family

ID=12279012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2954294A Withdrawn JPH07240125A (en) 1994-02-28 1994-02-28 Bushing and manufacture of bushing

Country Status (1)

Country Link
JP (1) JPH07240125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118631A (en) * 2015-09-25 2015-12-02 苏州翰为电气科技有限公司 Dry-type insulating sleeve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118631A (en) * 2015-09-25 2015-12-02 苏州翰为电气科技有限公司 Dry-type insulating sleeve

Similar Documents

Publication Publication Date Title
US7261581B2 (en) Coaxial connector and method
JPS6178198A (en) Electric insulating fastener for heat sink
JPH07240125A (en) Bushing and manufacture of bushing
JP2009064668A (en) Pin-type insulator and its manufacturing method
JP2002539923A (en) Electrostatic separation device
US6854867B2 (en) Chandelier
JPH11162743A (en) Rod tube and rod tube apparatus including the same
JPS5816182Y2 (en) electric wire holder
JPH05226188A (en) Fittings for electronic component
JPS6140028Y2 (en)
JP2000164465A (en) Electronic part
JPS6210616Y2 (en)
JPS585302Y2 (en) Structure to prevent the lower lead wire from falling off in a cylindrical cut-out switch
JPS6336656Y2 (en)
JPS6328554Y2 (en)
JPH03247916A (en) Ceramic glow plug
JPH0442808B2 (en)
JPS5831352Y2 (en) light fixture socket
JP3518347B2 (en) Insulator
JPH0128453Y2 (en)
JPS595981Y2 (en) semiconductor equipment
JPH0124968Y2 (en)
JPS5978818U (en) Assembly and disassembly tool for power cable terminations
EP0279683A3 (en) Semiconductor device and method of its manufacture
JPH0122361Y2 (en)

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20010508