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US 9,541,122 B2Granted
Outboard motor
AssigneeHonda Motor Co., Ltd.
InventorsKazuhiro Ishizaka, Yoshihiko Fukuda, Haruo Tsusaka, Tetsuro Ikeno, Tomoharu Tajima
Life of this patent
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Abstract
In an outboard motor adapted to be mounted on a hull and equipped with an engine having a crankshaft located parallel with a gravity axis and a vertical shaft connected to the crankshaft to be rotated around the gravity axis, an urger is disposed at a position between the crankshaft and the vertical shaft to urge the crankshaft upward in a direction parallel with the gravity axis.
Claims7
An outboard motor configured to be mounted on a hull, comprising:
- an engine including a crankshaft disposed parallel to a gravity axis and a cylinder block, the crankshaft including a crank journal constituting a main rotation axis of the crankshaft, a crank pin connected to a piston through a connecting rod, and a crank arm connecting the crank pin to the crank journal in an eccentric state, the cylinder block including a journal supporting part rotatably supporting an outer circumferential surface of the crank journal;
- a vertical shaft connected to the crankshaft to be rotated around the gravity axis;
- a thrust bearing disposed between the journal supporting part and the crank arm in an axial direction of the crankshaft;
- and
- an urger disposed at a position between the crankshaft and the vertical shaft to urge the crankshaft upward in a direction parallel with the gravity axis.
2 more elements
Dependencies are inferred from the claim text.