PROBLEM TO BE SOLVED: To provide a riding lawn mower that is capable of mowing lawn at the uniform reaping height even if there is variation of a reaping load.SOLUTION: A riding lawn mower is provided for sending the lawn being mown by a mower 1 provided with a vehicle body frame 12 traveling with front wheels 18, 18 and rear wheels 21, 21 into a collector 3 using the blowing air of a blower 2. In the riding lawn mower, there are provided a mower drive motor MM for driving the mower 1, a mower load sensor MS for detecting a drive load of the mower drive motor MM, and a drive control device H for controlling the rotation of the blower drive motor BM for driving the blower 2. The rotation of the blower drive motor BM controls acceleration/deceleration according to the load detected by the mower load sensor MS.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2020,JPO&INPIT【課題】乗用芝刈機で刈取負荷の変動が有っても均一な刈高さで芝生を刈り取ることが出来るようにすることを課題とする。【解決手段】前輪１８，１８と後輪２１，２１で走行する車体フレーム１２に設けたモア１で刈り取った芝生をブロワ２の送風でコレクタ３に送り込む乗用芝刈機において、モア１を駆動するモア駆動モータＭＭと該モア駆動モータＭＭの駆動負荷を検出するモア負荷センサＭＳとブロワ２を駆動するブロア駆動モータＢＭの回転を制御する駆動制御装置Ｈを設け、モア負荷センサＭＳの検出する負荷に応じてブロア駆動モータＢＭの回転を増減速制御する乗用芝刈機とする。【選択図】図７
