JPS604200U

JPS604200U - Roll screen lifting/lowering stop device

Info

Publication number: JPS604200U
Application number: JP9496483U
Authority: JP
Inventors: 石井　要
Original assignee: 株式会社　ニチベイ
Priority date: 1983-06-22
Filing date: 1983-06-22
Publication date: 1985-01-12
Also published as: JPH0140939Y2

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図は本考案装置におけるガイド溝の展開
図である。１・・・生布、２・・・巻きとり筒体、２・・・捩りバ
ネ、４・・・ブラケット、５・・・軸受部、６・・・昇
降停止装置、７・・・切換筒、８・・・ガイドドラム、
９・・・ドラム、１０・・・一方向クラッチバネ、１１
・・・切換ヒン、１２・・・切換ピン支持筒、１３・・
・溝、１４・・・圧縮ば−ね、１５・・・ガイド溝、１
６・・・ガイドスリーブ、１７・・・リング、１８・・
・圧縮ばね。FIG. 1 is a partially cutaway front view of a roll screen equipped with the device of the present invention, and FIG. 2 is a developed view of a guide groove in the device of the present invention. DESCRIPTION OF SYMBOLS 1... Raw cloth, 2... Winding cylinder, 2... Torsion spring, 4... Bracket, 5... Bearing part, 6... Lifting stop device, 7... Switching tube , 8... guide drum,
9...Drum, 10...One-way clutch spring, 11
...Switching hinge, 12...Switching pin support cylinder, 13...
・Groove, 14... Compression spring, 15... Guide groove, 1
6... Guide sleeve, 17... Ring, 18...
・Compression spring.

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/lowering stop device, a switching device consisting of a switching tube and a guide drum coaxially and rotatably assembled therein is disposed at one end of the raw cloth winding cylinder, and the switching tube and One of the guide drums is coaxially connected to one end of the raw cloth winding cylinder, and the other is attached to a bearing that supports the end of the raw cloth winding cylinder so that it can rotate only in the raw cloth pulling direction. A switching pin support cylinder having a switching pin protruding radially inward is combined with the switching cylinder so as to be fixed in the rotational direction and movable in the axial direction with respect to the switching cylinder, and the switching pin The supporting cylinder is always elastically biased in one direction, and a guide groove is formed on the circumferential surface of the guide drum to engage with the switching pin, and the guide groove is connected to the raw cloth winding cylinder. a free groove portion through which the switching pin can freely pass when the switch is rotated in the cloth winding direction by the action of the torsion spring;
When the raw cloth winding cylinder is rotated in the direction of pulling down the raw cloth, the switching pin is guided in the opposite direction against the elastic biasing force, and the first groove portion at the end of which the switching pin collides. When the raw cloth winding cylinder is rotated in the raw cloth pulling direction after colliding with the abutment part and the first abutment part, the switching pin is guided into the outlet groove part and its end by the above-mentioned elastic biasing force. When the switching pin collides with the second abutting part and the raw cloth winding cylinder is rotated in the direction of pulling down the raw cloth, the switching pin is moved from the second abutting part by the above-mentioned elastic biasing force. A lifting/lowering stop device for a roll screen, characterized in that it is comprised of an expulsion groove part that escapes into the groove part.