| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for repelling beasts and birds by sound, light, and smell only when especially the beasts and birds enter a paddy field or field preservation area. <P>SOLUTION: The timer 2 is turned on and electric current flows when the sensor 1 senses the entry of the beasts or birds, a nichrome wire 5 is heated via the limit switch 4, the fuse wire 6 of the firework 19 is ignited, the thread 7 intersecting the fuse wire 6 is cut, the stopper directly coupled to the thread 7 is released, the firework is brought to the blowing off opening 23 by the weight 16 attached to the distal end of the thread wound around the rotary roller, and at the same time the electric current from the timer 2 operates also the electromagnet 17 makes the stopper of a partition an on-state, stops the firework 19 at the blowing off opening 23, to explode the firework, thereby to repel the beasts and birds by the sound, light, and smell. <P>COPYRIGHT: (C)2012,JPO&INPIT |
