Fine trim adjustment for manually tilted outboard motor

Details Fine trim adjustment for manually tilted outboard motor Fine trim adjustment for manually tilted outboard motor

1985-10-28

1987-07-28

Peters, Jr., Joseph F.

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

248640, 248643, B63H 512

Patent

active

046829598

ABSTRACT:
A mounting bracket arrangement for a boat powered by an outboard motor having an elongate shaft housing, such that very slight increases in the tilt angle of the motor are made possible. My arrangement comprising a transom bracket adapted to be mounted on the transom of a boat, with the transom bracket including a pair of stern brackets mounted in spaced relation on the transom of a boat. The lower portions of the stern brackets each contain a spaced series of trim adjustment holes, with each hole in one of the stern brackets being in alignment with a corresponding hole in the other of the stern brackets. An elongate pin is adapted to extend between any selected, aligned pair of spaced holes in the stern brackets, with a portion of the elongate shaft housing of the outboard motor defining a saddle member designed to contact a portion of the elongate pin at a location inboard of the stern brackets. The elongate pin withstands a substantial part of the forward thrust applied to said saddle member when the outboard motor is delivering power, with the boater being able to apply fine grain corrective forces for trimming the boat, when the boat is at rest, by placing a sleeve of preascertained wall thickness over the pin. The selected sleeve only slightly increases the effective diameter of the elongate pin, and thus only slightly increases the distance between the center of the elongate pin and the saddle member. The tilt angle of the motor with respect to the transom of the boat is thus only slightly increased, resulting in improved performance and improved handling of the boat at selected speeds.

REFERENCES:
patent: 2345458 (1944-03-01), Caron
patent: 2695718 (1954-11-01), Epps
patent: 3136287 (1964-06-01), North
patent: 3279449 (1966-10-01), Ellis
patent: 3716650 (1973-02-01), De Mecquenem
patent: 4521202 (1985-06-01), Nakahama

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