【図面の簡単な説明】[Brief explanation of the drawing]
第１図は本考案の第１実施例の発光表示回路を
示す回路図、第２図は第１実施例の発光表示回路
を用いた搬送コンベアの制御回路図、第３図は同
搬送コンベア装置を示す斜視図、第４図は操作盤
を示し、イは操作盤ａ、ロは操作盤ｂを示す正面
図、第５図は第２実施例の発光表示回路を示す回
路図、第６図は第３実施例の発光表示回路を示す
回路図、第７図は第４実施例の発光表示回路を示
す回路図、第８図は第５実施例の発光表示回路を
示す回路図、第９図は第６実施例の発光表示回路
を示す回路図、第１０図は従来の発光表示回路を
示す回路図、第１１図は従来の他の発光表示回路
を示す回路図である。
１０…コンベア、１１…ワーク、１２…光電ス
イツチ、１４…コンベア駆動モータ、１５…表示
灯（ワーク取出完了表示灯）、１６…コンベア起
動スイツチ、１８…ワーク取出完了スイツチ、２
１，２５，３０…リレー、３１，３３，５１，５
４，６１，７１，８１，９１…定電流ダイオード
、３２，３４，５２ａ，５２ｂ，５２ｃ，５２ｄ
，５３ａ，５３ｂ，５３ｃ，５３ｄ，６２，７２
ａ，７２ｂ，７２ｃ，７２ｄ，８２，９２ａ，９
２ｂ，９２ｃ，９２ｄ…発光ダイオード、８３，
９３…保護ダイオード、４０，５０，６０，７０
，８０，９０…発光表示回路。
FIG. 1 is a circuit diagram showing a light emitting display circuit according to a first embodiment of the present invention, FIG. 2 is a control circuit diagram of a conveyor using the light emitting display circuit according to the first embodiment, and FIG. 3 is a circuit diagram of the same conveyor device. 4 is a perspective view showing the operation panel, A is a front view showing the operation panel a, B is a front view showing the operation panel b, FIG. 5 is a circuit diagram showing the light emitting display circuit of the second embodiment, and FIG. 9 is a circuit diagram showing a light emitting display circuit of the third embodiment, FIG. 7 is a circuit diagram showing a light emitting display circuit of the fourth embodiment, FIG. 8 is a circuit diagram showing a light emitting display circuit of the fifth embodiment, and FIG. 10 is a circuit diagram showing a light emitting display circuit of the sixth embodiment, FIG. 10 is a circuit diagram showing a conventional light emitting display circuit, and FIG. 11 is a circuit diagram showing another conventional light emitting display circuit. DESCRIPTION OF SYMBOLS 10... Conveyor, 11... Workpiece, 12... Photoelectric switch, 14... Conveyor drive motor, 15... Indicator light (workpiece removal completion indicator light), 16... Conveyor start switch, 18... Workpiece removal completion switch, 2
1, 25, 30...Relay, 31, 33, 51, 5
4, 61, 71, 81, 91...constant current diode, 32, 34, 52a, 52b, 52c, 52d
, 53a, 53b, 53c, 53d, 62, 72
a, 72b, 72c, 72d, 82, 92a, 9
2b, 92c, 92d...Light emitting diode, 83,
93...Protection diode, 40, 50, 60, 70
, 80, 90...Light-emitting display circuit.