JPS636796U

JPS636796U -

Info

Publication number: JPS636796U
Application number: JP10016786U
Authority: JP
Priority date: 1986-06-30
Filing date: 1986-06-30
Publication date: 1988-01-18
Also published as: JPH0337279Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の密閉装置を備えた電波暗室
の部分断面図、第２図は第１図のＡ―Ａ矢視図、
第３図は第１図のＢ―Ｂ線拡大断面図、第４図〜
第６図はこの考案の開閉装置による窓本体の開閉
状態を示す動作図である。１……開閉装置、２……電波暗室、２ａ……天
井部、３……開口部、４……窓本体、５……ガイ
ドローラー、６……上揺動アーム、６ａ……取付
部、７……下揺動アーム、８……連結アーム、９
……ガイド溝、９ａ……横方向移動用溝、９ｂ…
…縦方向移動用溝、１０……プーリ、１１……カ
ウンタ・ウエイト、１２……リンクチエーン、１
３……ウオーム軸、１４……ウオーム減速機、１
５……ハンドル。 Fig. 1 is a partial sectional view of an anechoic chamber equipped with the sealing device of this invention, Fig. 2 is a view taken along arrow A-A in Fig. 1,
Figure 3 is an enlarged sectional view taken along line B-B in Figure 1, and Figures 4--
FIG. 6 is an operational diagram showing the opening/closing state of the window body by the opening/closing device of this invention. DESCRIPTION OF SYMBOLS 1... Opening/closing device, 2... Anechoic chamber, 2a... Ceiling, 3... Opening, 4... Window body, 5... Guide roller, 6... Upper swinging arm, 6a... Mounting part, 7...Lower swing arm, 8...Connection arm, 9
...Guide groove, 9a...Groove for lateral movement, 9b...
...Groove for longitudinal movement, 10...Pulley, 11...Counter weight, 12...Link chain, 1
3... Worm shaft, 14... Worm reducer, 1
5...Handle.

Claims

[Scope of Claim for Utility Model Registration] A vertically swinging arm that is swingably pinned to the upper and lower parts of both sides of the window body, and has guide rollers attached to its swinging base end and swinging tip, and It comprises a connecting arm pinned to the tip of the swinging arm, and a guide groove into which the guide roller of the vertical swinging arm is fitted, and the window main body, the linking arm and the upper swinging arm are connected to each other. The lower swinging arms are configured as parallelogram four-bar link mechanisms that are parallel to each other, and the guide grooves are configured such that the guide rollers of the upper swinging arm and the guide roller of the lower swinging arm are respectively fitted into the guide grooves. two upper and lower parallel lateral movement grooves that are aligned and inclined upward from the window body fitting opening;
1. An opening/closing device for a window for an anechoic chamber, characterized in that the guide roller of the vertically swinging arm is fitted into a vertical movement groove extending upward from the fitting opening.