JPS5826880Y2 - Outboard motor engine cover attachment device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an outboard motor, and particularly to an improvement in a part of the engine cover.

A small outboard motor has a fuel tank installed inside the engine room covered by an engine cover.

A hole is provided on the top surface of the engine cover to allow a fuel inlet to protrude, allowing fuel to be replenished from the outside.

However, the filler cap is larger than the fuel filler, so
When removing the engine cover, the filler cap must be removed, which is both troublesome and dangerous.

Therefore, if you make the engine engine parts hole large enough for the inlet camp to pass through, there will be no need to remove the inlet cap, but this will create a gap between the engine cover hole and the fuel inlet, allowing water etc. to enter. Not only that, but it looks bad too.

This invention has been improved in view of these points, and will be described below with reference to embodiments shown in the drawings.

The outboard motor rotates a lower propeller 4 via a vertical shaft arranged in a vertical case 3 by an engine 2 installed in an upper engine room 1.

In a small outboard motor, a fuel tank 5 is installed in the engine room 1.

The engine cover 6 has its lower outer periphery fitted into the stepped portion of the base plate γ, and is fixed with screws 8, locking hooks, or the like.

Therefore, the present invention has a neck 10 of an inlet 9 of a fuel tank 5.
The elastic seal piece 11 is fitted into the.

The elastic seal piece 11 is annular and has a hollow interior 12, and a tapered surface 13 that slopes downward is formed on the outer periphery of the upper surface.

On the other hand, the engine cover 6 is provided with a circular hole 14 having a larger diameter than the inlet cap 15, and the inner circumferential edge of the circular hole 14 is in contact with the tapered surface 13.

It is even better if the inner surface of the circular hole 14 is also made into a tapered surface.

An injection port cap 15 is screwed onto the housing injection port 9.

When the engine compartment is covered with the engine cover 6, even if the center of the engine cover 60 circular hole 14 and the injection port 9 are slightly misaligned, the upper surface of the elastic seal piece 11 will not fit into the tapered surface 13.
The elastic seal piece 11 has a hollow 12 on the inside, so it can be bent inward, and the end of the circular hole 14 of the engine cover 60 fits well.

In this way, there is no gap and water or the like is prevented from entering the engine compartment.

Since the circular hole 14 can be made to have a larger diameter than the injection port camp 15, the engine cover 6 can be attached and removed without removing the injection port cap 15.

As explained above, this idea involves fitting an elastic seal piece with a downwardly tapered top outer periphery to the neck of the fuel tank inlet. Since the inner peripheral edge of the circular hole of the diameter is made to come into elastic contact with the tapered surface of the elastic seal piece,
The tapered surface of the elastic seal piece can absorb misalignment and improve the sealing performance between it and the circular hole.It has good sealing properties and prevents water etc. from entering the engine room, and there are no gaps for an attractive appearance. good.

Moreover, since the circular hole in the engine cover is larger than the diameter of the cap, the engine cover can be attached or removed without removing the cap.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, with FIG. 1 being a side view and FIG. 2 being an enlarged longitudinal sectional view. 5...Fuel tank, 6...Engine cover, 9...Inlet, 10...Neck,
11...Elastic seal piece, 12...Hollow, 13...Tapered tub, 14...Round hole.

Claims (1)

[Scope of utility model registration request] In an outboard motor in which a fuel tank is installed in the engine room covered by an engine cover, and the filler cap of the fuel tank is made to protrude outside of the engine cover, the neck of the filler port of the fuel tank is provided with: An elastic seal piece whose upper outer periphery is a downwardly sloping tapered surface is fitted, and the inner circumferential edge of a circular hole drilled in the engine cover and having a larger diameter than the inlet cap is fitted onto the tapered surface of the elastic seal piece. An outboard motor characterized by being in ballistic contact.