Patent ID: 7507129
Filing Date: 2009-03-24
Classification: B63H

Abstract:
1. A marine propulsion machine, comprising: an engine; a first drive shaft interlocked with the engine; a second drive shaft disposed rearward of the first drive shaft and interlocked with the first drive shaft, the first and second drive shafts being disposed with axes thereof vertically extended; an output gear mechanism driven by the second drive shaft; a propeller shaft having a longitudinal center axis and driven by the output gear mechanism; a normally submerged gear case having a gearing holding portion holding the output gear mechanism and the propeller shaft, and a shift rod disposed in a vertical position in the gear case forward of said second drive shaft, said shift rod being for reversing the driving direction of the output gear mechanism, wherein the gearing holding portion has a tapered part extending forward from a position corresponding to the second drive shaft, with respect to a longitudinal direction to a front end of the gearing holding portion, said gearing holding portion being tapered toward the front end of the gearing holding portion, and wherein a longitudinal distance between the front end of the gearing holding portion and the shift rod is not shorter than an outside diameter of a part of the tapered part corresponding to the shift rod with respect to the longitudinal direction.