초록 ▼

In a marine drive (10), a propeller shroud is provided by a cage (24) having internal spoke structure (26, 28, 38, 40, 46, 48) and having retainer structure (50, 74) mounting the cage (24) to the gearcase (12) and engaging the gearcase (12) and driveshaft housing (11) in a particular manner such tha

In a marine drive (10), a propeller shroud is provided by a cage (24) having internal spoke structure (26, 28, 38, 40, 46, 48) and having retainer structure (50, 74) mounting the cage (24) to the gearcase (12) and engaging the gearcase (12) and driveshaft housing (11) in a particular manner such that impact force on the cage (24) is transmitted to (1) the junction of the lower skeg (20) and the torpedo-shaped portion (14) of the gearcase (12,) (2) the leading edge of the gearcase (12) at the front edge (31) of the strut portion (23) and the front edge (33) of the skeg (20), (3) the underside of the anti-ventilation plate (22), and (4) the rearwardly extending portion (52) of the driveshaft housing (11) above the anti-ventilation plate (22) and the splash plate (13).

대표청구항 ▼

In a marine drive having a driveshaft housing and a gearcase having a lower submerged torpedo-shaped portion having a propeller shaft carrying a propeller at the back end thereof, and having a skeg extending downwardly from said torpedo-shaped portion, a propeller shroud comprising a cage around sai

In a marine drive having a driveshaft housing and a gearcase having a lower submerged torpedo-shaped portion having a propeller shaft carrying a propeller at the back end thereof, and having a skeg extending downwardly from said torpedo-shaped portion, a propeller shroud comprising a cage around said gearcase and said propeller and mounted to said gearcase and having a pair of inner spokes extending inwardly and bearing against the junction of said skeg and said torpedo-shaped portion such that impact force on said cage is transmitted to said junction, wherein said gearcase has a leading strut portion above said torpedo-shaped portion, and wherein: said cage has a front portion with a leading edge extending along the front of said strut-portion and said skeg, said front portion of said cage tapering rearwardly and outwardly; said cage has a rear generally cylindrical portion around said propeller and extending rearwardly from said front portion; said cage has a generally circular rib at the intersection of said front and rear portions; said spokes extend generally radially inwardly from said circular rib to said junction of said skeg and said torpedo-shaped portion.