JPH0443754U

JPH0443754U -

Info

Publication number: JPH0443754U
Application number: JP8336290U
Authority: JP
Priority date: 1990-08-07
Filing date: 1990-08-07
Publication date: 1992-04-14

Description

[Brief explanation of drawings]

第１図は本考案を適用したダクトの開閉装置の
一実施例を示す断面図、第２図は第１図の矢線
−に沿う断面図、第３図は第１図の可撓性プレ
ートの半開状態での空気の流れを示す断面図、第
４図乃至第６図はそれぞれ従来のダクトの開閉装
置の断面図である。１……ダクト、１ｄ……スリツト、１ｅ……ガ
イド溝、５……可撓性プレート、６……固定板、
７……ガイド板、９……突起。 Fig. 1 is a sectional view showing an embodiment of a duct opening/closing device to which the present invention is applied, Fig. 2 is a sectional view taken along the arrow line - in Fig. 1, and Fig. 3 is a flexible plate shown in Fig. 1. 4 to 6 are cross-sectional views of conventional duct opening/closing devices, respectively. 1... Duct, 1d... Slit, 1e... Guide groove, 5... Flexible plate, 6... Fixed plate,
7...Guide plate, 9...Protrusion.

Claims

[Scope of utility model registration request]

The ducts are arranged along one opposing inner surface of a duct having a substantially rectangular cross section, each one end is fixed to each inner surface, and each other end is slidably attached along the longitudinal direction of the duct, and , a pair of flexible plates having a width substantially the same as the width of the inner surface; and a pair of flexible plates interposed between each flexible plate and the duct so that when the other ends of each flexible plate move, a guide means for guiding the duct toward the center of the duct while curving a portion thereof, and each of the flexible plates has a duct open position extending along the inner surface, and the substantially central portions of each flexible plate abut each other. A duct opening/closing device characterized in that an opening area of the duct is continuously changed between a closed position of the duct and a closed position of the duct, in accordance with the movement position of each of the other ends.