Patent ID: 8133084

Claim:
A propulsion device comprising: a propulsion device main body; an attachment mechanism arranged to attach the propulsion device main body to a hull such that the propulsion device main body can turn right and left with respect to the hull about a swivel shaft arranged to extend vertically, and turn up and down with respect to the hull about a tilt shaft arranged to extend horizontally along a right/left direction; and a steering mechanism arranged to turn the propulsion device main body to the right and the left with respect to the hull; wherein the steering mechanism includes a motor arranged to generate a driving force to turn the propulsion device main body to the right or the left, and a transmitting mechanism arranged to transmit the driving force of the motor to the propulsion device main body to turn the propulsion device main body to the right or the left; the attachment mechanism includes a housing space in which the motor and the transmitting mechanism are housed; and the attachment mechanism includes a swivel bracket coupled to the propulsion device main body so as to turn to the right and left about the swivel shaft, the swivel bracket including a front end portion in which the tilt shaft is inserted, and a clamp bracket coupled to the swivel bracket so as to turn up and down about the tilt shaft, and the attachment mechanism is arranged such that the housing space is positioned rearward relative to the front end portion of the swivel bracket in a state in which the propulsion device main body is arranged at a turning origin in regard to an up/down direction.