PROBLEM TO BE SOLVED: To provide a tractor that can reuse rotational energy possessed by a working device and a PTO shaft when operating a clutch device for disengagement by converting it into electric power or the like.SOLUTION: This tractor includes the PTO shaft 25 that can connect the working device, and the clutch device 27 for operating input for engagement-disengagement to the PTO shaft 25 from input shafts 18 and 31 driven by a prime mover, includes a power generation device 60 constituted of a rotor 56 fitted around/arranged on the outer periphery of the PTO shaft 25 and a stator 57 opposable in the radial direction to the rotor 56, and includes a regenerative control means 70 put in a power generation state in which the rotor 56 and the stator 57 are mutually opposed and relatively rotate based on disengagement operation by the clutch device 27 and releasing the power generation state based on engagement operation by the clutch device 27.COPYRIGHT: (C)2013,JPO&INPIT【課題】クラッチ装置を切り操作した時点で作業装置及びPTO軸が保有する回転エネルギーを電力などの形に変換することで再利用することが可能なトラクタを提供する。【解決手段】作業装置を連結可能なPTO軸25と、原動機によって駆動される入力軸18,31からPTO軸25への入力を入り切り操作するクラッチ装置27とを設け、PTO軸25の外周に外嵌配置された回転子56と、回転子56と径方向で対向可能な固定子57とからなる発電装置60を設け、クラッチ装置27による切り操作に基づいて回転子56と固定子57とが互いに対向して相対回転する発電状態とし、クラッチ装置27による入り操作に基づいて発電状態を解除する回生制御手段70を設けた。【選択図】図5
