Tilt device for boat propulsion machine

摘要

Several embodiments of hydraulically operated tilt and trim units for outboard drives wherein both tilt and trim cylinders are provided that are effective to operate together to provide trim adjustment and wherein the trim cylinder is pivotally connected directly to the outboard drive. An arrangement is provided for permitting movement of the trim cylinder upon tilt up operation. In all embodiments, the piston rods of the tilt and trim cylinders are disposed so that they will be out of the water when the outboard drive is tilted up. Some embodiments employ a linkage system so that the outboard drive will move in a manner so that it will not increase significantly the effective length of the associate watercraft when the outboard drive is tilted up.