PROBLEM TO BE SOLVED: To reliably remove dust on a dustproof net of a radiator in a combine harvester.SOLUTION: A cooling fan (12) is provided outside an engine (E), a radiator (13) is provided outside the cooling fan (12), an endless rotary dustproof net (21c) moving from one side to the other of the radiator (13) is provided outside the radiator (13), and a dust-removing brush (25) is provided, which is slidably brought into contact with the rotary dustproof net (21c) over the entire width. The rotary dustproof net (21c) for covering the entire surface of the radiator (13) is wind-supported so as to be vertically moved by upper and lower rotary shafts (21a, 21b) in the horizontal posture, or wind-supported so as to be moved in the right-to-left direction by the right and left rotary shafts (21a, 21b) in the vertical posture, and the dust-removing brush (15) is arranged in a vicinity of the rotary shafts (21a, 21b) so as to be slidably brought into contact with the rotary dustproof net (21c) in the entire width.COPYRIGHT: (C)2012,JPO&INPIT【課題】コンバインにおいて、ラジエータの防塵ネットの塵埃を確実に除去する。【解決手段】エンジン(E)の外側に冷却ファン(12)を設け、冷却ファン(12)の外側にラジエータ(13)を設け、ラジエータ(13)の外側にラジエータ(13)の一側から他側に向けて移動する無端帯状の回転防塵ネット(21c)を設け、回転防塵ネット(21c)の全幅に亘って摺接する除塵用ブラシ(25)を設ける。また、ラジエータ(13)の全面を覆う回転防塵ネット(21c)を横向き姿勢の上下の回転軸(21a,21b)により上下方向に移動するように巻回支持するか、又は、縦向き姿勢の左右の回転軸(21a,21b)により左右方向に移動するように巻回支持し、除塵用ブラシ(15)を回転防塵ネット(21c)の全幅に摺接するように回転軸(21a,21b)の近傍に配置する。【選択図】図4
