Patent ID: 7226327
Filing Date: 2007-06-05
Classification: B63H

Abstract:
1. An outboard drive for boats, comprising an underwater housing ( 1 ) which has a wing-profiled portion ( 2 ), having an aft portion configured non-symmetrically with respect to a vertical plane of symmetry ( 35 ) of the wing profile, and is intended to be mounted in a boat's hull for rotation about an at least substantially vertical steering shaft ( 36 ), a vertical drive shaft ( 4 ) mounted rotatably in the underwater housing concentrically with the steering shaft, and at least one at least substantially horizontal propeller shaft ( 8 , 9 ), which is mounted rotatably in the underwater housing and which, via a bevel gear encased in the underwater housing, is drivably connected to a lower end of said drive shaft, the upper end of which is intended to be connected to a drive unit disposed on the inner side of the boat's hull, wherein the wing profile ( 2 ) has opposing side faces, of which one face has a first face portion ( 31 ), which extends from the fore edge of the wing profile aftward toward the aft edge ( 33 ) of the wing profile, a second, essentially flat face portion ( 32 ) which, with an abrupt offset, angles out sideways from the first portion at a distance from the aft edge, and a third face portion ( 34 a , 34 b , 34 c ), which adjoins the aft edge.