Marine propulsion – Screw propeller – With vibration dampening
Patent
1991-03-05
1992-09-08
Sotelo, Jesus D.
Marine propulsion
Screw propeller
With vibration dampening
440900, B63H 2130
Patent
active
051454270
ABSTRACT:
A steering mechanism for an outboard motor which comprises a steering bracket having a mounting bore and a steering handle having a mounting shaft at one end that is received for pivotal rotation within the mounting bore. In one embodiment, a wave washer is positioned within a counterbore formed at the upper end of the mounting bore and coaxial therewith so that the wave washer is between the steering bracket and the steering handle. In another embodiment, a pair of rubber members are each positioned within one of a pair of counterbores that are coaxial with the mounting bore, one being formed at the upper end of the mounting bore and the other being formed at the lower end, so that the rubber members are interposed between the steering bracket and the steering handle. The wave washer and rubber members dampen vibration transmission between the steering bracket and handle, and permit pivotal adjustment of the handle up or down while still providing sufficient frictional resistance against inadvertent pivotal movement of the handle. An area of rigid contact is positioned radially outward of the upper counterbore between the steering handle and the steering bracket to provide a highly responsive steering mechanism.
REFERENCES:
patent: 1689032 (1928-10-01), Johnson
patent: 1999694 (1935-04-01), Irgens
patent: 2478858 (1949-08-01), Buske
patent: 2488199 (1949-11-01), Jordan
patent: 2585774 (1952-02-01), Heidner et al.
patent: 2740368 (1956-04-01), Irgens et al.
patent: 4979918 (1990-12-01), Breckenfeld et al.
Abe Kouji
Kawai Takaji
Avila Stephen P.
Beutler Ernest A.
Sanshin Kogyo Kabushiki Kaisha
Sotelo Jesus D.
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