An outboard motor includes a seal to seal a space between a peripheral edge of an opening of a shroud inclined surface and a peripheral edge of a cowl opening of a cowl inclined surface. The seal includes a base plate fixed to the peripheral edge of the shroud to take a rectangular annular shape having a diagonal center line and a rectangular annular seal lip extending from the base plate to be elastically contact with the peripheral edge of the cowl opening. The rectangular annular seal lip includes a hollow first seal lip. The first seal lip includes a first lip portion including a first base end and a first front end, a second lip portion including a second base end and a second front end, and a hollow portion between the first lip portion and the second lip portion. The first lip portion and the second lip portion are configured to take a chevron shape in cross-section inclined in mutually opposite directions in a free state. The first lip portion includes a surface contact region that extends to the first front end from a halfway portion between the first base end and the first front end and that is elastically surface contact with the peripheral edge of the cowl opening.
OUTBOARD MOTOR AND SEAL FOR OUTBOARD MOTOR
2025-05-22
Patent
Electronic Resource
English