JPH02130999U

JPH02130999U -

Info

Publication number: JPH02130999U
Application number: JP4027389U
Authority: JP
Priority date: 1989-04-05
Filing date: 1989-04-05
Publication date: 1990-10-30

Description

[Brief explanation of the drawing]

第１図は本実施例に係るシヤツターの正面図、
第２図は第１図の−線断面図、第３図は制御
盤の内部を示す回路図、第４図は異常駆動を判断
するための制御フローチヤートである。１０……シヤツター、１２……シヤツターカー
テン、２０……巻取シヤフト、２２……モータ、
２８……ブレーキ、３０……従動ブレーキ、３８
……操作器、４６……上限リミツトスイツチ、４
８……下限リミツトスイツチ、５４……光電スイ
ツチ、６０……コントローラ、６１……タイマ、
７０……ＥＭコイル、７２……警報ブザー、１０
６……ＬＥＤ、１０８……表示器。 FIG. 1 is a front view of the shutter according to this embodiment;
FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a circuit diagram showing the inside of the control panel, and FIG. 4 is a control flowchart for determining abnormal drive. 10... Shutter, 12... Shutter curtain, 20... Take-up shaft, 22... Motor,
28...brake, 30...driven brake, 38
...Operator, 46...Upper limit switch, 4
8... Lower limit switch, 54... Photoelectric switch, 60... Controller, 61... Timer,
70...EM coil, 72...Alarm buzzer, 10
6...LED, 108...display device.

Claims

[Claims for Utility Model Registration] (1) A plurality of position detection sensors arranged at predetermined intervals to detect the passing of the tip of the shutter curtain during rising and falling, and a specific position detection sensor that detects the passing of the shutter curtain. A shutter comprising: determining means for determining that an abnormality occurs when the time from when the passage of the shutter curtain is detected to when the passing of the shutter curtain is detected by another position detecting sensor adjacent to the specific position detecting sensor is outside a predetermined range. Anomaly detection device. (2) A blocking means for preventing the shutter curtain from rising and falling, a plurality of position detection sensors arranged at predetermined intervals and detecting passage of the tip of the shutter curtain during rising and falling, and a specific position detection sensor. When the time from when the passage of the shutter curtain is detected to when the passage of the shutter curtain is detected by another position detection sensor adjacent to the specific position detection sensor is outside a predetermined range, the blocking means is actuated. and actuation means for causing the shutter to stop.