JPH01133475U

JPH01133475U -

Info

Publication number: JPH01133475U
Application number: JP2972888U
Authority: JP
Priority date: 1988-03-08
Filing date: 1988-03-08
Publication date: 1989-09-11

Description

[Brief explanation of drawings]

第１図は本考案に係るカーテン開閉装置の一実
施例を示す概略構成図、第２図は同実施例の要部
を示す斜視図、第３図は同実施例におけるスパイ
ラルロツドの部分正面図、第４図は同実施例にお
けるモータの制御系を示すブロツク図、第５図ａ
，ｂは各々従来のカーテン開閉装置を示す概略図
である。符号の説明、１……カーテンレール、３……ス
パイラルロツド、３ａ……円周面部（ねじ非形成
部）、５……可逆モータ、６……雌ねじブロツク
、７……メインランナ（先頭ランナ）、１０……
カーテン、１１……コイルばね（付勢手段）。 Fig. 1 is a schematic configuration diagram showing an embodiment of the curtain opening/closing device according to the present invention, Fig. 2 is a perspective view showing the main parts of the embodiment, and Fig. 3 is a partial front view of the spiral rod in the embodiment. Figure 4 is a block diagram showing the motor control system in the same embodiment, and Figure 5 a.
, b are schematic diagrams showing conventional curtain opening/closing devices. Explanation of symbols, 1...Curtain rail, 3...Spiral rod, 3a...Circumferential surface part (non-threaded part), 5...Reversible motor, 6...Femally threaded block, 7...Main runner (first runner) ), 10...
Curtain, 11...Coil spring (biasing means).

Claims

[Claims for Utility Model Registration] (1) A leading runner of a curtain is screwed into a threaded spiral rod, and the leading runner is moved along the rail by rotating the spiral rod. In the curtain opening/closing device for opening and closing the curtain, screw-free parts are provided at both ends of the spiral rod in the direction of movement of the leading runner, and when the curtain starts to be opened or closed, the leading runner is moved from the thread-free part to the thread-free part. A curtain opening/closing device comprising a biasing means for biasing a spiral rod in a direction to be screwed into the screw. (2) By screwing the leading runner of the curtain into the threaded spiral rod and rotating the spiral rod by driving a motor, the leading runner is moved along the rail and the curtain is moved. In the automatic stopping device for an electric curtain that opens and closes the curtain and automatically stops the leading runner at a fully open position and a fully closed position, a screw-free portion is provided at both ends of the spiral rod in the moving direction of the leading runner, and The present invention includes a biasing means for biasing the leading runner in a direction in which the leading runner is screwed from the non-threaded portion to the screw of the spiral rod when the curtain starts to be opened and closed, and a timer for setting the driving time of the motor. death,
An automatic stop device for an electric curtain, characterized in that the timer is set to a time longer than the time required for the travel distance of the leading runner in the curtain opening/closing direction.