JPS6033298U

JPS6033298U - Roll screen lifting/lowering stop device

Info

Publication number: JPS6033298U
Application number: JP12559583U
Authority: JP
Inventors: 石井　要
Original assignee: 株式会社　ニチベイ
Priority date: 1983-08-12
Filing date: 1983-08-12
Publication date: 1985-03-07
Also published as: JPH032639Y2

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 drawings]

第１図は本考案装置を設けたロールスクリーンの一部欠
切正面図、第２図の本考案の一実施例を　　　−示す断
面図、第３図は第２図に示す案内筒体に形成された案内
溝の展開図、第４図および第５図はそれぞれ該案内溝の
一部を示す断面図である。１・・・ロールスクリーン生布、２・・・巻きとぬり筒
体、３・・・捩りばね、４，５・・・ブラケット、６・
・・切換クラッチ、７・・・外部枠体、８・・・回転軸
、９・・・案内筒体、１０・・・切換ピン、１１・・・
板バネ、１２・・・案内溝、１３・・・中心軸、１４・
・・一方向クラッチ。Fig. 1 is a partially cutaway front view of a roll screen equipped with the device of the present invention, Fig. 2 is a sectional view showing an embodiment of the present invention, and Fig. 3 is a guide tube formed on the guide cylinder shown in Fig. 2. The developed view of the guide groove, FIGS. 4 and 5, are sectional views showing a part of the guide groove, respectively. DESCRIPTION OF SYMBOLS 1... Roll screen raw cloth, 2... Rolling and coloring tube body, 3... Torsion spring, 4, 5... Bracket, 6...
... Switching clutch, 7... External frame, 8... Rotating shaft, 9... Guide cylinder, 10... Switching pin, 11...
Leaf spring, 12... Guide groove, 13... Center shaft, 14.
...One-way clutch.

Claims

[Scope of utility model registration request]

The raw cloth is stopped at a desired height by stopping a raw cloth winding cylinder equipped with a torsion spring that always acts in the direction of winding up the raw cloth at a desired position against the force of the torsion spring. In the roll screen lifting and lowering stop device, an external frame body having a switching pin elastically protruding radially inward, a rotating shaft provided at the center of the external frame body,
A switching clutch equipped with a guide cylinder fixed in the circumferential direction and slidably in the axial direction on the rotating shaft and having a guide groove on the circumferential surface for receiving the switching pin, It is arranged at one end of the cloth winding cylinder, the above-mentioned rotating shaft is connected to the bracket of the roll screen via a one-way clutch that operates only in the raw cloth winding direction, and it is installed on the circumferential surface of the above-mentioned guide cylinder. The guide groove has a free groove section through which the switching pin can freely pass when the raw cloth winding cylinder is rotated in the cloth winding direction by the action of the above-mentioned torsion spring, and a free groove section through which the switching pin can freely pass when the raw cloth winding cylinder body is rotated in the cloth winding direction by the action of the torsion spring. an entry groove portion into which the switching pin is introduced when rotated in the direction; a first abutting portion with which the switching pin abuts at its end; and a raw cloth winding tube after abutting against the first abutting portion. body rotates in the direction of pulling up the raw cloth)
an exit groove portion into which the switching pin is introduced when the switching pin is inserted; a second abutting portion with which the switching pin collides at the end thereof; A lifting/lowering stop device for a roll screen, comprising an escape groove portion that escapes from the second abutment portion to the free groove portion.