PROBLEM TO BE SOLVED: To assure a safety in driving during a work by equalizing a balance in right and left sides of a machine body as much as possible, to improve a working accuracy for forming a straight line shaped ditch, and to improve a workability and a safety by improving a maneuverability during a turning operation.SOLUTION: In a ditching machine for riding 1, an engine 40 and a sitting seat 60 are arranged along the center of a machine body frame 20. A running wheel 10 can freely rotate on a support member 21 during the turning operation of the machine body or during no work. A rear part of the machine body is raised so as to incline an operating handle 70 forward on the support member 21 so that a ditching machine body 30 can be lifted from the ground.COPYRIGHT: (C)2009,JPO&INPIT【課題】機体の左右バランスを可能な限り均等にすることで作業時の走行安定性を確保し、直線状の溝を形成するための作業精度を向上させる。また、旋回時の操作性を向上させて作業性と安全性を向上させる。【解決手段】乗用溝切機1において、エンジン40と着座シート60とを機体フレーム20の中心に沿って配置し、走行車輪10が機体の旋回操作時又は非作業時に軸支部材21の周りに自由回転可能であり、軸支部材21を中心に操作ハンドル70を前傾させるように機体の後方を持ち上げて、溝切作業体30を地上から浮かせることができるようにした。【選択図】図1
