JPH0223782Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cover device for an outboard motor in which an air-cooled engine is provided on the top of the outboard motor body via an extension case.

Conventionally, this type of cover device was
According to No. 19047, the engine is covered by a cowling consisting of an undercover attached to the engine and a top cover attached to the undercover from above, and a fan cover that houses a cooling fan provided on the top of the engine within the cowling, and a cover from which the cooling fan is removed. It is known that a shroud is installed to guide the air around the engine, but in this case, the cover device is made up of four parts: an undercover, an atupakaba, a fan cover, and a shroud, so the number of parts increases and it is difficult to manufacture. This involves inconveniences such as requiring a lot of effort and making handling difficult. In addition, in the above-mentioned system, the gap between the undercover and the shroud is used as a space for placing auxiliary equipment such as a carburetor.
Since this gap is open downward, it is easy for water to enter due to wave spray, etc., and it is necessary to provide a separate waterproof cover member for auxiliary equipment that requires waterproofing, which complicates the structure.

In view of the above points, the object of the present invention is to provide a cover device with a simple structure that integrates an under cover, a fan cover, and a shroud, and can secure a space for arranging waterproof auxiliary equipment within the cowling. At the top of the outboard motor body 1,
An air-cooled engine 3 is provided via an extension case 2, and the engine 3 is covered with a cowling consisting of an undercover 5 attached to the engine 3 and a top cover 14 attached to the undercover 5 from above. , the undercover 5 includes a fan cover part 4 that accommodates a cooling fan 16 provided on the upper surface of the engine 3, and a cylindrical shape that extends downward from the fan cover part 4 and guides air from the cooling fan 16 around the engine 3. A shroud portion 5a, a flange portion 5b on the outer periphery of the lower end of the shroud portion 5a, and a peripheral edge portion 5c extending upward from the outer periphery of the flange portion 5b are integrally formed. It is characterized in that the atsupaka cover 14 is attached so as to cover it from above.

The undercover 5 is made of an integrally molded piece of reinforced plastic, surrounds the engine 3 in the shroud portion 5a, and is fixed thereto with a plurality of screws 7.

Further, a carrying part 6 is integrally formed at one end of the peripheral edge part 5c by integrally extending the same, and a horizontal support part 8 is provided at one side edge of the peripheral edge part 5c.
were integrally formed.

The support portion 8 stably supports the vehicle when it is removed from the hull and placed horizontally on the ground, and effectively acts to prevent engine oil from flowing into the cylinder.

The above-mentioned flange portion 5b has a tank stay 9a on its upper surface on which the fuel tank 9 is placed, and a lever holder 10a that pivotally supports the throttle lever 10.
A recoil cover 12 having a recoil starter 11 therein is provided on the upper surface of the fan cover 4 described above.
are mounted and fixed with screws 13, and a top cover 14 is applied to cover them on the upper surface, and is detachably fixed with screws 15.

In this way, according to the present invention, undercover 5
The fan cover part 4 and the shroud part 5a, which are integrally formed, can guide the cooling air from the cooling fan 16 provided on the top surface of the engine 3 around the engine 3 and discharge it downward while effectively cooling it. In order to integrally form the flange portion 5b on the lower end outer periphery of the shroud portion 5a and the peripheral edge portion 5c extending above the outer periphery of the flange portion 5b on the undercover 5,
It is possible to secure a gap in the cowling, which is composed of the undercover 5 and the atsupakaba 14 that covers the peripheral edge 5c of the undercover from above, to prevent water from entering from below, and to use a separate waterproof cover member for the auxiliary equipment in the gap. In the end, with just two members, the under cover 5 and the atsupaka cover 14, a cover device that combines the function of guiding cooling air and the function of waterproofing the auxiliary equipment can be obtained, simplifying the structure and reducing costs. It has the effect of achieving

[Brief explanation of drawings]

Fig. 1 is a side view of an example of an outboard motor equipped with the proposed device, Fig. 2 is a cutaway side view of its main parts, Fig. 3 is a plan view of its main parts, and Fig. 4 is an exploded view of its main parts. It is a slope view. 1...Outboard motor body, 2...Extension case, 3...Engine, 4...Fan cover part, 5
...Undercover, 5a...Shroud part, 5b...
...Flange portion, 5c...Peripheral portion, 14...Atsupakaba, 16...Cooling fan.

Claims (1)

[Scope of utility model registration request] An air-cooled engine 3 is provided on the top of the outboard motor body 1 via an extension case 2, and the engine 3 is connected to an undercover 5 that is attached to the engine 3, and a top cover 14 that is attached to the undercover 5 from above. The undercover 5 includes a fan cover portion 4 that accommodates a cooling fan 16 provided on the upper surface of the engine 3, and a fan cover portion 4 that extends downward from the fan cover portion 4 to receive air from the cooling fan 16. a cylindrical shroud portion 5a leading around the engine 3; a flange portion 5b on the outer periphery of the lower end of the shroud portion 5a;
A peripheral edge portion 5c extending upward from the outer periphery of the flange portion 5b is integrally formed, and the atsupaka cover 1 is provided so as to cover the peripheral edge portion 5c from above.
4. A cover device for an outboard motor, characterized in that a cover device is attached to the outboard motor.