| 摘要 |
PURPOSE: A hexagon head bolt embedded with sensor is provided to prevent accident, especially during the reverse drive of motor vehicle, and improve efficiency by allowing the bolt to serve as a bolt and a sensor at the same time. CONSTITUTION: A sensor(5) is embedded into a hole formed at the center of the top of a bolt head, and a hollow bolt portion is formed from the bolt head to the end of a screw thread(3), such that a lead wire of the sensor passes through the hollow bolt portion. The screw thread has a connection terminal(8) embedded within the end of the screw thread, to thereby close the lead wire. When thus-configured hexagon head bolt is used for the registration number plate of motor vehicle, the sensor embedded within the hexagon head bolt senses an obstacle and generates an alarm, thereby preventing accident during the reverse drive of motor vehicle.
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