Safety warning for car door - operates if door is opened with ignition key still in place by switching on horn

The vehicle ignition lock is linked to an acoustic warning circuit which operates if the driver's door is opened with the ignition key still in the lock. The warning also operates if the driver attempts to lock the door with the key still in the ignition. The circuit uses a simple layout and ca...

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Bibliographische Detailangaben
Hauptverfasser: DEGENKOLBE,OSKAR, WAIZENHOEFER,JULIUS
Format: Patent
Sprache:eng ; ger
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Beschreibung
Zusammenfassung:The vehicle ignition lock is linked to an acoustic warning circuit which operates if the driver's door is opened with the ignition key still in the lock. The warning also operates if the driver attempts to lock the door with the key still in the ignition. The circuit uses a simple layout and can be fitted to existing vehicles. The acoustic warning can be vehicle horn, linked to an intermittent control, or a warning buzzer.