To provide a vertical-type capture box using the cavity-nesting of the raccoon, it provides the capability to small weasel and squirrels, etc. than the raccoon capture action well into the vertical capture boxes so as not to operate to. A raccoon should be intrusion from intrusion port 109 in response to pressure on the footplate 106 when the jump off the footplate 106, swinging in the direction of the connection portion to the wire 107 of the footplate 106 is close to the base unit 101 verb, and a wire 107 connected to the footplate 106 , according to the cited movement of the wire 107, locking of the locking means 105 is released, the holding of the open state of the door 104 is released, the door 104 GaYura made in the closed state and dynamic. force of the elastic member 108, and weighs 2.5kg more than the raccoon is jump off the footboard 106, in the closed state door 104 is swung, On the other hand, weighs 1.2kg less than the weasel and squirrels, etc. If the jump in the tread 106, is a strength of the open state of the door 104 is held. .FIELD 2【課題】アライグマの樹洞営巣性を利用した縦型捕獲箱において、アライグマよりも小型のイタチやリス等が縦型捕獲箱に入っても捕獲作用が作動しないようにする機能を提供する。【解決手段】侵入口109から侵入すべきアライグマが踏み板106に飛び降りるときの踏み板106への押圧に応じて、踏み板106のうちのワイヤ107に接続された部分が基底部101に近接する方向に揺動し、踏み板106に接続されたワイヤ107が引動し、ワイヤ107の該引動に応じて、係止手段105の係止が解除され、扉104の開状態の保持が解除され、扉104が揺動して閉状態になる。弾性部材108の該付勢力は、重さ2.5kg以上のアライグマが踏み板106に飛び降りると、扉104が揺動して閉状態になり、一方、重さ1.2kg以下のイタチやリス等が踏み板106に飛び降りると、扉104の開状態が保持される強さである。【選択図】図2
