JPS59186919U - Bushing structure in construction switches - Google Patents

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本案の実施例を示すもので、工事相開゛閉器を
電柱の中間に取付けた場２合の正面図、第２図は第１図
の側面図、第３図は本案の要部である工事用開閉器のブ
ッシング部の縦断面図、第４図は等価回路図を各々あら
れす。　　　　　　　′１４・・・ケース、１５・・・
ブッシング、１５ｇ・・・外周面、２７・・・電極板、
２８・・・被覆筒、２８ａ・・・ネジ孔、２９・・・検
電検相用端子、２９ａ・・・先端、２９ｂ・・・接触部
、３０・・・挿入案内部材、３０ａ・・・ネジ部、３０
ｂ・・・案内部。Figure 1 shows an example of the present invention. Figure 2 is a front view of the case in which the construction phase switch is installed in the middle of the utility pole, Figure 2 is a side view of Figure 1, and Figure 3 is the embodiment of the present invention. Figure 4 shows a vertical cross-sectional view of the bushing part of the construction switch, which is the main part, and an equivalent circuit diagram. '14...Case, 15...
Bushing, 15g...outer peripheral surface, 27...electrode plate,
28... Cover tube, 28a... Screw hole, 29... Terminal for voltage detection phase detection, 29a... Tip, 29b... Contact portion, 30... Insertion guide member, 30a... Threaded part, 30
b...Information department.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中心に中心導体を挿通固定した絶縁物よりなるブッシン
グをケースに対しその内外に貫通して取付け、さらにケ
ース外に位置する上記ブッシングの外周面には環状の電
極板を密着し、而も同電極板の外周面を合成樹脂等の絶
縁物よりなる被覆筒により覆うと共に、さらに上方に形
成したネジ部には検電検相用端子を突出固着し、また下
方には下端がラッパ状に拡間して上記端子の接触部を囲
む案内部を形成した合成樹脂等の絶縁物よりなる漏斗形
の挿入案内部材を、上記被覆筒の下部に位置して設けた
ネジ孔に対し上方のネジ部を下方より螺入して取付ける
と共に、さらにこの取付時上記検電検相端子の先端を上
記電極板に対し押圧接続せしめたことを特徴とする工事
用開閉器に於けるブッシング構造。A bushing made of an insulator with a central conductor inserted and fixed in the center is attached to the case by penetrating the inside and outside of the case, and an annular electrode plate is tightly attached to the outer peripheral surface of the bushing located outside the case. The outer circumferential surface of the plate is covered with a covering tube made of an insulating material such as synthetic resin, and a terminal for voltage detection and phase detection is protruded and fixed to the threaded part formed at the top, and the lower end is expanded into a trumpet shape at the bottom. A funnel-shaped insertion guide member made of an insulating material such as synthetic resin, which forms a guide portion surrounding the contact portion of the terminal, is inserted into the screw hole provided at the bottom of the covering tube, and the upper screw portion is inserted into the screw hole provided at the bottom of the covering tube. A bushing structure for a construction switch, characterized in that it is mounted by screwing from below, and further, when this mounting is done, the tip of the voltage detection phase detection terminal is pressed and connected to the electrode plate.