Drive shaft assembly for outboard motor
OwnerWallace R. Karrasch, Kennedy K. McElroy +1inventors
InventorsWallace R. Karrasch, Kennedy K. McElroy, Steven R. McNeill
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Abstract
Disclosed herein is a marine propulsion device adapted to be mounted to the transom of the boat, the marine propulsion device comprising an engine, a rotatably mounted propeller, and a drive shaft assembly drivingly connecting the engine to the propeller, the drive shaft assembly including a lower drive shaft member having a lower end coupled to the propeller and having a threaded upper end, the drive shaft assembly further including an upper drive shaft member having a threaded lower end for threadedly engaging the threaded upper end of the lower drive shaft member.
Claims21
A marine propulsion device adapted to be mounted to the transom of a boat, said marine propulsion device comprising an engine, a rotatably mounted propeller, and a drive shaft assembly drivingly connecting said engine to said propeller, said drive shaft assembly including a lower drive shaft having a lower end coupled to said propeller for transmission of rotary power from said lower end of said drive shaft to said propeller, said lower drive shaft also having an integral threaded upper end, said drive shaft assembly further including an upper drive shaft having an integral threaded lower end, one of said threaded lower end of said upper drive shaft and said threaded upper end of said lower drive shaft being threadedly engaged into the other of said threaded lower end of said upper drive shaft and said threaded upper end of said lower drive shaft.
A drive shaft assembly for a marine propulsion device, said drive shaft assembly comprising a lower drive shaft having an integral threaded upper end and a lower end including means for transmitting power to a propeller and further comprising an upper drive shaft having an integral threaded lower end, one of said threaded lower end of said upper drive shaft and said threaded upper end of said lower drive shaft being threadedly engaged into the other of said threaded lower end of said upper drive shaft and said threaded upper end of said lower drive shaft.
A drive shaft assembly for a marine propulsion device, said drive shaft assembly comprising an elongate intermediate drive shaft having an integral first threaded end and a second end, an elongate wear resistant lower drive shaft having an integral threaded end, extending in substantially co-linear alignment with said intermediate drive shaft, and adapted to transmit power, one of said threaded end of said lower drive shaft and said threaded end of said intermediate drive shaft being threadedly engaged into the other of said threaded end of said lower drive shaft and said threaded end of said intermediate drive shaft, and an upper insert formed of a corrosion resistant material mounted to said second end of said intermediate drive shaft in substantially co-linear alignment therewith.
A drive shaft assembly for a marine propulsion device including a rotatable crankshaft, said drive shaft assembly comprising an upper drive shaft including an elongate, substantially solid main portion having an integral threaded lower end and an upper portion adapted for coupling to the crankshaft for co-rotation of said drive shaft assembly with the rotatable crankshaft, and said upper portion being formed of a corrosion resistant material, extending in substantially co-linear alignment with said main portion and being integral with said main portion, and an elongated wear resistant lower drive shaft in substantially co-linear alignment with said upper drive shaft and including an integral threaded upper end, one of said threaded end of said lower drive shaft and said threaded end of said upper drive shaft being threadedly engaged into the other of said threaded end of said lower drive shaft and said threaded end of said upper drive shaft.
Dependencies are inferred from the claim text.