JPS63143697U

JPS63143697U -

Info

Publication number: JPS63143697U
Application number: JP3375887U
Authority: JP
Priority date: 1987-03-10
Filing date: 1987-03-10
Publication date: 1988-09-21

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の装置を備えたブラ
インドの要部を一部切欠いて示す正面図である。図において、符号１０はヘツドボツクス、１１
は上限リミツトスイツチ、１２は上限ストツパ、
１３は上限スペーサ、１４は下限リミツトスイツ
チ、１５は下限ストツパ、１６は下限スペーサ、
２０はモータ、２１は回転軸、２２は巻取りドラ
ム、３０はボトムレール、３６は昇降コードをそ
れぞれ示す。 FIG. 1 is a partially cutaway front view of a main part of a blind equipped with a device according to an embodiment of the present invention. In the figure, numeral 10 is a head box, 11
is the upper limit switch, 12 is the upper limit stopper,
13 is an upper limit spacer, 14 is a lower limit switch, 15 is a lower limit stopper, 16 is a lower limit spacer,
20 is a motor, 21 is a rotating shaft, 22 is a winding drum, 30 is a bottom rail, and 36 is a lifting cord.

Claims

[Claims for Utility Model Registration] (1) A rotating shaft rotatably supported by a head box, a winding drum fitted to the rotating shaft so as to be integrally rotatable and slidable relative to each other; a drum holder having a female thread that fits into a male thread provided on the circumferential surface of the winding drum; a lifting cord having one end fixed to the bottom rail and the other end fixed to the winding drum; and a lift cord installed inside the head box. and an electric circuit including an upper limit switch that stops the rotation of the motor in the direction of raising the bottom rail, and a lower limit switch that stops the rotation of the motor in the direction of lowering the bottom rail. In the apparatus, the upper and lower limit switches are attached to the head box, and upper and lower limit stoppers that engage with the upper and lower limit switches are fixed to the winding drum so that their fixed positions can be adjusted, so that the bottom rail is fixed to the winding drum. A lifting limit regulating device for a Venetian blind, characterized in that when a preset lifting and lowering limit position is reached, the lifting and lower limit switch operates to stop the rotation of the motor. (2) Lifting and lowering limits of the Venetian blind as set forth in claim 1 of the utility model registration claim, characterized in that upper and lower limit spacers are interposed on the winding drum between the upper and lower limit switches and the upper and lower limit stoppers, respectively. Regulatory device.