< Topic > Conservation the cutting blade of the mowing machine, the bearing unit which can prevent the damage of the cover board with the Drive power of the Drive motor and the protective cover for the mowing machine which uses this are offered.Solutions As for the protective cover for the mowing machine which relates to this invention, in order with those in order conservation the cutting blade which is provided in the Drive axis of the Drive motor which is provided in the handle, to be categorized to the lower part of the aforementioned cutting blade, the cover component and the aforementioned protecting plate where the bearing and the said bearing which the aforementioned Drive axis are joined it is joined and from rotary diameter of the aforementioned cutting blade are formed relatively at big diameter and have the protecting plate conservation the aforementioned cutting blade the occasion where torque is received with the Drive power of the aforementioned Drive motor, specified angular revolution plate rotary support means and the aforementioned conservation which support the aforementioned protecting plate unrestrictedlyThe plate warping, in order to prevent the fact that it collides with the aforementioned cutting blade, it has the interval attachment component which makes the offset distance of the aforementioned cutting blade and the aforementioned protecting plate maintain above fixed distance. Because of this it cuts off the fact that the foreign material inflow in the mowing job axis receiving efficiently the fact that life of the protective cover for the mowing machine due to the damage of the bearing by being possible, to raise the compatibility of the cutting blade of the mowing machine and the protective cover for the mowing machine, is reduced can be prevented.< Choice figure >Drawing 1【課題】草刈機のカット刃を保護し、駆動モータの駆動力によるカバー板の破損を防止できる軸受ユニット及びこれを用いた草刈機用保護カバーを提供する。【解決手段】本発明に係る草刈機用保護カバーは、ハンドルに設けられる駆動モータの駆動軸に設けられるカット刃を保護するためのもので、前記カット刃の下部に位置するように前記駆動軸と結合される軸受と
