US 5,205,764 AGranted

Steering mechanism in a boat propulsion system

AssigneeCPS Drive A/S

InventorHans Thiger

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Abstract

A marine propulsion drive apparatus has an input drive shaft with a propeller shaft extending through the stern of the boat and a drive body extending substantially straight out the stern of the boat and having a propeller at the end thereof. Steering is accomplished by operating the drive body itself. The drive body and the stern of the boat have a common oblique upward rearward slope. The contact surface of the drive body is mounted rotatably about an axis which is perpendicular to the contact surface such that when the boat is turned in one direction or the other, the entire drive body with the propeller mechanism is rotated about that contact surface, such that the propeller mechanism at the outer end of the drive body both rotates in the horizontal plane and also dips successively downwards following the rotating movement of the drive body.

Claims9

Dependent claims

A marine propulsion drive apparatus for an inboard engine in which the input drive shaft with its propeller shaft extends generally horizontally through the stern of a boat, comprising:

a drive body extending generally horizontally substantially straight out from the stern of the boat and having a propeller attached to the drive body and extending generally axially and horizontally at the outer end thereof, said propeller arranged and designed to operate at the water surface, and wherein steering of the boat is accomplished by operating the drive body itself,
a common connection surface of the drive body and the stern of the boat having an obliquely upwards-rearwards slope from the bottom of the boat,
the connection surface of the drive body at the stern of the boat being rotatably mounted about an axis which is perpendicular to said connection surface,
whereby the boat is turned by rotating the entire drive body in one direction or the other about said connection surface.

1 more element

Dependencies are inferred from the claim text.