PROBLEM TO BE SOLVED: To provide an attaching structure of an exterior hydraulic pressure extracting valve of a tractor provided with an oil-feeding system capable of stopping the feeding of oil to an unused exterior hydraulic pressure extracting valve by the simple arrangement of a plurality of exterior hydraulic pressure extracting valves without connecting the valves through pipes thereby improving the handleability of the valves.SOLUTION: A base member 16 is attached to the upper face of a hydraulic housing 8 containing a hydraulic cylinder and one or more exterior hydraulic pressure extracting valves 18a to 18d are placed close to each other on both sides of the base member 16. The base member 16 is provided with oil channels O2, O3 having flow-controlling flow-dividing valve 20 for the supply and recovery of pressure oil to the valves 18a, 18b on both sides or the valve 18a on one side, and an outlet port N to recover the pressure oil supplied to the valves 18a, 18b at the neutral point of the valves 18a, 18b.COPYRIGHT: (C)2007,JPO&INPIT【課題】複数の外部油圧取出バルブを配管で接続することなくシンプルに配置することで、その取扱性を良くし、かつ使用しない外部油圧取出バルブには送油しなくて良い送油系を備えたトラクタの外部油圧取出バルブの取付構造を提供すること。【解決手段】油圧シリンダを内装した油圧ハウジング8の上面にベース部材16を取付け、ベース部材16の両側に1個以上の外部油圧取出バルブ18a~18dを密着配置して、ベース部材16には、その両側のバルブ18a,18bまたは片側だけのバルブ18aに圧油を供給し、回収するための流量調整式分流弁20付きの油路O2,O3とバルブ18a,18bの中立位置における該バルブ18a,18bへそれぞれ供給した圧油を回収する出力ポートNとをベース部材16内に設ける。【選択図】図9
