| 主权项 |
1. A lawn-mowing vehicle with a lawn-mowing unit connected to a carriage by the intermediary of an arm; the lawn-mowing unit being able to move between a moved-down position as a position at a time of lawn-mowing, and a moved-up position as a position for driving the carriage in a time period when no lawn-mowing is carried out, by way of activating an up-and-down cylinder that connects the arm and the carriage; the lawn-mowing vehicle comprising:
a first connection mechanism that makes it possible to rotate the lawn-mowing unit, and connects the lawn-mowing unit to the arm, in such a way that the lawn-mowing unit can be shifted by rotation between its work position at the time of lawn-mowing and a biased side position that is biased toward a side of the carriage, being away from the work position; and a second connection mechanism for connecting the lawn-mowing unit to the first connection mechanism so as to be rotatable, in such a way that the lawn-mowing unit placed at the biased side position can be shifted from a facing-the-ground posture, which is a pose of a facing-the-ground surface of the lawn-mowing unit to face the ground, to an outward posture, which is a pose of the facing-the-ground surface to orient toward an outside of the carriage; wherein a connection part of the arm for connection to a movable end part of the up-and-down cylinder or a connection part of the up-and-down cylinder is an elongate hole. |
