PROBLEM TO BE SOLVED: To develop a noxious animal repelling device which can generate repelling sounds that are effective to noxious animals having learning ability.SOLUTION: A noxious animal repelling device includes an ultrasonic signal generating part comprising an ultrasonic signal oscillation means, a control means, a sound pressure adjusting means, and an audio output means. A plurality of ultrasonic speakers are provided. The ultrasonic speakers comprise a plurality of ultrasonic speaker sequences that output ultrasound through the respective sound pressure adjusting means and audio output means. Phase difference adjusting means are respectively provided to the ultrasonic speaker sequences other than the ultrasonic speaker sequence with a reference phase. Since ultrasound with phase differences and sound pressures that are made to differ by the phase difference adjusting means and the sound pressure adjusting means can be independently output from the respective ultrasonic speakers, repelling sounds that are effective to noxious animals with learning ability can be generated.COPYRIGHT: (C)2014,JPO&INPIT【課題】学習能力を有する有害動物に対して有効な撃退音を発生させることができる有害動物撃退装置を開発すること。【解決手段】有害動物撃退装置において、超音波信号発振手段と、制御手段と、音圧調整手段と、音声出力手段と、からなる超音波信号発生部を有し、超音波スピーカーを複数設け、各超音波スピーカーはそれぞれの音圧調整手段と音声出力手段を介して超音波を出力する複数の超音波スピーカー系列からなり、基準位相の超音波スピーカー系列以外の超音波スピーカー系列にはそれぞれ位相差調整手段を設け、位相差調整手段と音圧調整手段によって位相差と音圧の異なる超音波を各超音波スピーカーから独立して出力できるようにしたので、学習能力のある有害動物に対しても有効な撃退音を発生させることができる。【選択図】図1
