Patent ID: 6968906

Claim:
An electric tilling machine comprising: a machine body; an electric motor provided on the machine body; a tilling shaft disposed beneath the machine body and connected to be rotationally driven by the motor, the tilling shaft having one or more tilling claws for tilling earth in response to rotation of the tilling shaft by the motor; a housing/cleaning box adapted to house and clean the tilling shaft and the tilling claws therein, the housing/cleaning box having an opening closable by the machine body when the machine body is removably attached to the housing/cleaning box; locking means for locking the machine body to the housing/cleaning box with the tilling shaft and the tilling claws housed in the housing/cleaning box; detection means including a locking-side terminal provided on the locking means and a body-side terminal provided on the machine body, the locking-side terminal being electrically connected to the body-side terminal when the machine body is locked to the housing/cleaning box via the locking means; and a control section for keeping the motor in a controllably operable condition while the locking-side terminal is electrically connected to the body-side terminal.