| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a problem in which, when an exhaust port of reaped lawn grass is installed behind a mower deck in a blade mower equipped with blades in the same revolution direction arranged in a straight line, lawn grass at the discharge side is collided against lawn grass at the carrying side by the blades rotated in a mutually close state to frequently drop the speed of the lawn grass. SOLUTION: This mower deck for blade mower is equipped with a normally rotating blade shaft 2 at the central part in the reaping width direction, a normally rotating blade shaft 3 at one side part of the blade, an exhaust port 29 at the central part of the back of a mower deck 1 holding a reversely rotating blade shaft 6 of the other side part and with a discharge guide plate 58 which is installed between blades 37 of the normally rotating blade shafts 2 and 3 of the exhaust port 29 and divides width C of the exhaust port 29 at the side of the normally rotating blade shaft 3 and width D of the exhaust port 29 at the side of the reversely rotating blade shaft 6 in a ratio of approximately 1:2.
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