PROBLEM TO BE SOLVED: To provide an implement connection device for automatically connecting a pair of connection terminals on the connection frame side to a pair of connection terminals on the implement side when the implement is automatically connected to the connection frame liftably disposed on the rear portion of a tractor, which improves the reliability of the mutual connection of the connection terminals.SOLUTION: The implement connection device is provided with a pair of the connection terminals of a tractor vehicle body side and a pair of connection terminals on the implement side, a pair of fit dent portions and a pair of projection portions which are mutually engaged on the connection of the implement to the connection frame with a pair of the fit dent portions arranged in the lateral direction, and a pair of projection portions arranged in the lateral direction one of a pair of the connection terminals in one of a pair of the right and left fit dent portions, the other connection terminal in the other fit dent portions, one of the other connection terminals in one of the right and left projection portions, and the other of the other connection terminals in the other projection portion.COPYRIGHT: (C)2013,JPO&INPIT【課題】トラクタ後部に昇降自在に設けた連結枠に作業機が自動連結される際に連結枠側の対の接続端子と作業機側の対の接続端子とが自動的に接続されるようにした作業機連結装置において、接続端子同士の接続の信頼性の向上を図る。【解決手段】トラクタ車体側の対の接続端子と作業機側の対の接続端子とを設け、作業機が連結枠に連結される際に互いに嵌合する嵌入凹部と突出部とをそれぞれ一対設け、一対の嵌入凹部を左右方向で並べて配置すると共に一対の突出部を左右方向で並べて配置し、左右の嵌入凹部の内の一方の嵌入凹部内に一方の対の接続端子の内の一の接続端子を設けると共に他方の嵌入凹部内に該一方の対の接続端子の内の他の接続端子を設け、左右の突出部の内の一方の突出部に他方の対の接続端子の内の一の接続端子を設けると共に他方の突出部に該他方の対の接続端子の内の他の接続端子を設ける。【選択図】図1