PROBLEM TO BE SOLVED: To use a frame body, a beam member and a mounting member constituting a connection frame to not only surround a body side connector from both vertical and horizontal directions but also provide protection and shielding against mud in the longitudinal direction.SOLUTION: A working machine 3 is connected to a connection frame 2 connected to a tractor body T via a link mechanism L, and the working machine side connector 6 of the working machine 3 is connected to the body side connector 7 of the connection frame 2. The connection frame 2 includes: a projecting frame body 2A provided with an upper connection 2U and a horizontal lower connection 2D a beam member 2B for connecting the vertical mid portion between the right and left side portions of the frame body 2A and a mounting member 2C connecting the beam member 2B to the right and left lower connections 2D. The body side connector 7 is disposed in a position surrounded by the frame body 2A, the beam member 2B and the mounting member 2C and in a position that approximately overlaps with the members longitudinally. Also, positive and negative terminals 7a, 7b are disposed while pointing horizontally.COPYRIGHT: (C)2013,JPO&INPIT【課題】 連結枠を構成する枠本体と梁部材と取付部材とによって、本体側コネクタを上下左右方向から囲うだけでなく前後方向においても保護及び泥土の遮蔽ができるようにする。【解決手段】 トラクタ車体Tにリンク機構Lを介して連結した連結枠2に作業機3を連結し、連結枠2の本体側コネクタ7に作業機3の作業機側コネクタ6を接続する。連結枠2は、上連結部2Uと左右下連結部2Dを設けた山形状の枠本体2Aと、枠本体2Aの左右側部の上下中途部を連結する梁部材2Bと、梁部材2Bと左右各下連結部2Dとを連結した取付部材2Cとを有する。本体側コネクタ7を枠本体2Aと梁部材2Bと取付部材2Cとによって囲まれた位置でかつそれらと前後方向で略重なる位置に配置し、かつ陰陽端子7a、7bを左右向きにして配置する。【選択図】図1
