JPS5960293U

JPS5960293U - Roll blind lifting/lowering stop device

Info

Publication number: JPS5960293U
Application number: JP15583982U
Authority: JP
Inventors: 裕臣山中; 斎藤　靖治
Original assignee: 株式会社ニチベイ
Priority date: 1982-10-15
Filing date: 1982-10-15
Publication date: 1984-04-19
Also published as: JPS6340638Y2

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図は本考案に係るロールブラインドの昇降停止装置
の一実施例を示す縦断面図、第２図イ。口は第１図の■−■線における断面図、第３図イ９口は
第１図の■−■線における断面図、第４図は第１図に示
すクラッチ装置への詳細を示す分解斜視図である。FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a lifting and lowering stop device for a roll blind according to the present invention, and FIG. The opening is a sectional view taken along the line ■-■ in Fig. 1, the opening in Fig. 3 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 4 is an exploded view showing details of the clutch device shown in Fig. 1. FIG.

Claims

[Scope of utility model registration request]

(1) Roll blind A raw cloth winding cylinder equipped with a torsion spring that always acts in the direction of rolling up the raw cloth is stopped at a desired position against the force of the torsion spring to raise the raw cloth to a desired height. In a lifting/lowering stop device for a roll blind to be stopped, a clutch drum receiver is fixed coaxially with the winding cylinder, and a clutch wheel is supported by a bracket that supports one end of the roll blind so that it can rotate only in a certain direction. , a clutch drum supported by the clutch wheel so as to rotate by a certain angle is loosely fitted coaxially into the clutch drum holder, and a stopper is disposed on the wall of the clutch drum so as to be freely removable and removable. The clutch drum and the clutch drum holder are integrally connected at the protruding position, and when the cloth is pulled down, the stopper is projected into the clutch drum to connect the take-up cylinder and the clutch drum. When the cloth is rotated as one body and the raw cloth is stopped being pulled down, it is slightly reversed upward and the rotation of the winding cylinder is stopped.
Further, a lifting/lowering stop device for a roll blind, characterized in that a clutch device is provided in the clutch drum, which retracts the stopper by pulling the raw cloth downward when pulling the raw cloth upward.

(2) The clutch device is arranged in the clutch drum so that it can move left and right by a certain angle,
A clutch shaft that moves the stopper to an extended position or a retracted position by its rotation, a second clutch wheel formed integrally with the clutch shaft, and a second clutch wheel that is loosely fitted onto the clutch shaft and is connected to the clutch drum. a third clutch wheel that is movable in the axial direction; and a spring that always elastically presses these clutch wheels. , the contact surfaces of the second clutch wheel and the first clutch wheel engage with each other's clutch pawls when the second clutch wheel rotates in the raw cloth pulling direction,
A plurality of clutch pawls are formed so as to rotate together in one direction by a spring spring, and the contact surfaces of the second clutch wheel and the third clutch wheel are configured to change relative to each other by one clutch pawl. A lifting and lowering stop device for a roll blind according to claim (1) of the utility model registration, characterized by:

(3) The lifting and lowering stop device for a roll blind according to claim (1), which is provided with a speed reduction device between the clutch drum and the winding cylinder.