Marine propulsion – Screw propeller – With vibration dampening
Patent
1991-04-25
1993-01-19
Sotelo, Jesus D.
Marine propulsion
Screw propeller
With vibration dampening
248640, B63H 2130
Patent
active
051803194
ABSTRACT:
A joint structure joins an outboard engine assembly to a boat hull. The outboard engine assembly has an engine, a case, a propeller rotatably supported on the case and drivable by the engine. The joint structure includes an attachment adapted to be coupled to the boat hull, the case having an inner surface defining an inner housing region, and elastic mount mechanism accommodated in the inner housing region for elastically supporting the case to the attachment. The elastic mount mechanism comprises a support member coupled to the attachment, and an elastic member disposed on the support member, the elastic member being elastically deformable from partial abutment to full abutment against a portion of the inner surface of the case in response to an increase in compressive forces which are applied between the case and the attachment when the engine is in operation. For example, the portion of the inner surface may include a flat inner surface substantially normal to the direction in which the compressive forces are applied, the elastic member having an outer surface facing the flat inner surface and having a plurality of protrusions which are elastically deformable from partial abutment to full abutment against the flat inner surface when the compressive forces are increased.
REFERENCES:
patent: 2916007 (1959-12-01), Kiekhaefer
patent: 3002489 (1961-10-01), Watkins
patent: 3599594 (1971-08-01), Talpale
patent: 4445674 (1984-05-01), Clayton, Jr.
patent: 4507090 (1985-03-01), Kobayashi
Kiku Kazuomi
Saito Akihisa
Shiomi Kazuyuki
Tanaka Mitsuharu
Burt Pamela S.
Carrier Joseph P.
Honda Giken Kogyo Kabushiki Kaisha
Sotelo Jesus D.
Weiner Irving M.
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