Patent ID: 6066013
Filing Date: 2000-05-23
Classification: B63H,F02B

Abstract:
An outboard motor comprising:an upper unit comprising an internal combustion engine and an engine cover for covering the engine;a lower unit mounted under the upper unit, the lower unit comprising an extension case for housing a drive shaft which extends vertically to drivingly interconnect the internal combustion engine and a propeller shaft carrying a propeller and a gear case mounted at a lower end of the extension case for rotateably supporting the propeller shaft;a mount member disposed between the upper unit and the lower unit, the mount member extending generally horizontally to mount the engine thereon and sealingly engaged with the engine cover around its periphery so that the engine cover and the mount member jointly define an engine compartment, wherein a drain passage for draining water from the engine compartment is formed in a peripheral portion of the mount member so that the drain passage has an opening facing the engine cover; anda reed valve unit made of a resilient material and attached to the mount member so as to normally close the opening of the drain passage, the reed valve unit comprising a base portion for the attachment of the reed valve unit and a valve portion adapted so that the valve portion is normally urged to close the opening of the drain passage and when water is accumulated in the drain passage the valve portion bends to open the opening of the drain passage to discharge the accumulated water;wherein a side wall defining the drain passage of the mount member is adapted to fittingly receive the base portion of the reed valve unit.