JPS5993014U

JPS5993014U - Telescoping conductive tube

Info

Publication number: JPS5993014U
Application number: JP18850382U
Authority: JP
Inventors: 須藤　博信
Original assignee: Yokowo Co Ltd
Current assignee: Yokowo Co Ltd
Priority date: 1982-12-15
Filing date: 1982-12-15
Publication date: 1984-06-23
Also published as: JPS6310590Y2

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

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す伸長時の全体図、第２
図は同短縮時の断面図、第３図は第１図の■−■線拡線
断大断面図４図は第３図のＩＶ−ＩＶ　　　　　−線断
面図、第５図は第３図および第４図に示す部分の分解斜
視図、第６図は第５図の組立後の状態を示す説明図、第
７図は比較例を示す第５図に対応する分解斜視図である
。１．２，３，４，５，６・・・・・・ポール、７ｘ。７Ｙ・・・・・・絶縁ブシュ、７Ｘａ・・・・・・その
本体、７ｘｂ・・・・・・そのフランジ部、２１．２２
，２３．２４・・・・・・接触板ばね、２２ａ・・・・
・・突起、３１・・・・・・突条、３５・・・・・・端
縁、３５ａ・・・・・・斜面、Ａ・・・・・・外側ポー
ル群、Ｂ・・・・・・内側ポール群。Figure 1 is an overall view of an embodiment of the present invention when it is expanded;
Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1. Figure 4 is a cross-sectional view taken along line IV-IV- in Figure 3. Figure 5 is a cross-sectional view taken along the line 4 is an exploded perspective view of the portion shown in FIG. 4, FIG. 6 is an explanatory view showing the state after assembly shown in FIG. 5, and FIG. 7 is an exploded perspective view corresponding to FIG. 5 showing a comparative example. 1. 2, 3, 4, 5, 6...Paul, 7x. 7Y... Insulation bushing, 7Xa... Main body, 7xb... Flange part, 21.22
, 23.24...Contact leaf spring, 22a...
...Protrusion, 31...Protrusion, 35...Edge, 35a...Slope, A...Outer pole group, B......・Inner pole group.

Claims

[Scope of utility model registration request]

(1) A multi-stage telescopic outer pole group, at least two multi-stage telescopic inner pole groups arranged inside this outer pole group, and a proximal end of the inner pole in each stage of the outer pole group. An insulating bushing that is fixedly installed and holds the outer pole group and the inner pole group in an insulated state, a contact spring that is interposed between the adjacent stages of the inner poles and makes them conductive, and a contact spring that is interposed between the adjacent stages of the outer poles. The contact springs of the outer pole are provided at intervals in the circumferential direction on the outer periphery of the proximal end of the outer pole step, and the contact springs of the outer pole are provided at intervals in the circumferential direction at An axial protrusion is provided on the inner surface of each step except for the step above, at a position that avoids the contact spring, and the protrusion is located between both circumferential edges of adjacent contact leaf springs belonging to each side pole. and the protrusions are held by contact leaf springs on both sides of the protrusions so as to be able to slide relative to them, thereby preventing rotation of the inner pole and the outer pole in the axial direction. conductive tube.

(2) A telescoping type according to claim 1 of the utility model registration claim, characterized in that the proximal end portions of both circumferential edges of the contact leaf spring are formed as slopes that gradually move away from the protrusions in the circumferential direction. conductive tube.