| 摘要 |
<p>Construction machinery with less possibility of having a theft, comprising an antenna (6) for detecting that an engine key (8) is extracted after an engine is stopped, an angle detector (35) for detecting the swing attitude of an upper structure, and a theft prevention unit (31) forcibly stopping the engine when the upper structure is not positioned in a specified parking attitude with the engine key (8) extracted and outputting an alarm signal.</p> |
