Patent ID: 6498562
Filing Date: 2002-12-24
Classification: B60R

Abstract:
A seat belt buckle engagement detector comprising:a buckle switch for detecting an engagement of a buckle and a tongue plate of a seat belt, a detection device connected to the buckle switch for detecting the engagement of the buckle and the tongue plate and indicating the same, a power source, an ignition line connected between the detection device and the power source, and having an ignition switch of an automobile and a reverse-flow preventing device for allowing electricity in the ignition line to flow only from the power source to the buckle switch so that when the ignition switch is turned on, the detection device is actuated to indicate a condition of the buckle switch through the ignition line, and a direct line directly connected between the power source and the detection device and having a resistance therein to reduce a power supplied from the power source to the detection device, said power flowing through the direct line being prevented from flowing to the ignition switch by the reverse-flow preventing device so that in case the ignition switch is turned off, the power reduced by the resistance is supplied to the detection device to be able to indicate a condition of the buckle switch.