| 摘要 |
PURPOSE:To prevent burglary by engaging a trunk with precious articles, cash loaded in an automobile with body such as a floor, etc., of the automobile through a key with chain, and providing a sensor for detecting the cutting of the chain to sound a buzzer, a klaxon at the time of cutting of the chain. CONSTITUTION:When a bag or a trunk 6 containing precious articles such as jewelry and, cash are loaded in an automobile, a chain or a wire 1 is engaged through a key 2 with the body part such as a floor plate 5, of the automobile. A sensor 3 for detecting cutting of the chain or the wire 1 is provided close to the key 2. At the time of cutting of the chain or the wire 1, the sensor 3 detects the cutting of the chain to sound a buzzer or a klaxon and inform abnormality of the trunk, and burgalary can thus be prevented. |
