Patent ID: 6547610
Filing Date: 2003-04-15
Classification: B63H,F16H

Abstract:
A parallel-operated motor type stern propulsion apparatus for boats, comprising:a transom box disposed at a stern wall of a boat; a propulsion body situated in said transom box to be tilted and steered, said propulsion body including: an upper body supported by a tilting shaft transversely fitted into said transom box, a yoke connected to said upper body, and two lower bodies each attached to lower ends of said yoke; and a hydraulic motor positioned in each of said lower bodies and each connected to a propeller; tilting cylinders attached to said transom box for tilting said propulsion body around said tilting shaft; and a steering cylinder attached to said transom box for steering said propulsion body right and left with respect to a steering pin attached to said tilting shaft.