PROBLEM TO BE SOLVED: To improve the working efficiency by adjusting a preset ground height of a mower with an elevating operation tool for lifting the mower still held in one hand in a sulky lawn mower adapted to elevate the mower hung on a traveling machine body by up and down turning of the elevating operation tool.SOLUTION: In a sulky lawn mower including a mower 6 provided on the lower part of a traveling machine body 2 so as to elevate, a mower elevating mechanism is so constructed that a linkage part of an elevating operation tool 12 for pulling up the mower 6 is provided with a first engaging part 17 engaged with an optional position of a plurality of engaging parts 13a, 13b, 13c, ... of a fixture 13 fixed to the traveling machine body 2 to hold the position of the mower 6 and a second engaging part 18 abutted on the first engaging part 17 to determine the engaging position in lowering the mower 6 to engage with the engaging parts 13a, 13b, 13c, ..., and a first release tool 19 for releasing the engagement of the first engaging part 17 and a second release tool 20 for releasing the engagement of the second engaging part 18 are provided on the elevating operation tool 12 to be operable by single hand.COPYRIGHT: (C)2014,JPO&INPIT【課題】本発明は、昇降操作具の上下回動で走行機体に吊り下げたモーアを昇降する乗用芝刈機において、モーアを持ち上げる昇降操作具を片手で握ったままでモーアの設定地上高の調整を行えるようにして作業効率を向上することを課題とする。【解決手段】走行機体2の下部にモーア6を昇降可能に設けた乗用芝刈機において、モーア6を引き上げる昇降操作具12の連係部に走行機体2に固定する固定具13の複数の係合部13a,13b,13c,・・・の任意位置に係合してモーア6の位置を保持する第一係合部17とモーア6の降下操作時に第一係合部17に接当して係合位置を決める第二係合部18を前記係合部13a,13b,13c,・・・に係合するように設け、第一係合部17の係合を解除する第一解除具19と第二係合部18の係合を解除する第二解除具20を昇降操作具12に片手で操作可能に設けたことを特徴とする乗用芝刈機のモーア昇降操作機構とする。【選択図】図3
