To provide an intermittent relay for a railroad crossing alarm lamp which prevents a careless lighting of the alarm lamp.SOLUTION: An intermittent relay 20 of a railroad crossing alarm lamp comprises a power terminal B24 into which a voltage from an external power supply device is inputted, an oscillator circuit 22 to generate a signal of a prescribed frequency, a pair of output terminals L1+,-, L2+,- to which a pair of the railroad crossing alarm lamps L1, L2 are connected, output circuits 21A, 21B provided with a pair of transistors to switch on or off a current flowing into the pair of lamps connected to the pair of output terminals, control terminals into which a signal indicating actions of a railroad crossing alarm lamps is inputted via relay contacts from outside and a control circuit to output a current which controls output circuits in response to state of an oscillating signal from an oscillating circuit and an input signal of a control terminal and outputs a current alternately flushing a pair of lamps when a train approaches. Between the control terminal and the control circuit, photo-couplers 26A, 26B are provided and a state of the input signal of the control terminals is inputted into the control circuit via the photocoupler.SELECTED DRAWING: Figure 2

    【課題】警報灯のぼんやり点灯を防止することができる踏切警報灯の断続リレーを提供する。【解決手段】踏切警報灯の断続リレー20において、外部の電源装置からの電圧が入力される電源端子B24と、所定周波数の信号を生成する発振回路22と、踏切警報灯L1、L2の一対のランプが接続される一対の出力端子L1+、-、L2+、-と、一対の出力端子に接続された一対のランプに流す電流をオン、オフする一対のトランジスタを有する出力回路21A、Bと、外部から踏切警報灯の動作を指示する信号がリレーの接点を介して入力される制御端子と、発振回路からの発振信号と制御端子の入力信号の状態に応じて出力回路を制御して列車が接近している際に一対のランプを交互に点滅させる電流を出力する制御回路とを備える。制御端子と制御回路との間にフォトカプラ26A、Bを設け、フォトカプラを介して制御端子の入力信号の状態が制御回路に入力される。【選択図】図2


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    Titel :

    INTERMITTENT RELAY FOR RAILROAD CROSSING ALARM LAMP


    Weitere Titelangaben:

    踏切警報灯の断続リレー


    Beteiligte:
    SAITO DAISUKE (Autor:in)

    Erscheinungsdatum :

    2022-03-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H05B ELECTRIC HEATING , Elektrische Heizung



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