JPH08175449A - Engine cover device for scooter type vehicle - Google Patents

Abstract

PURPOSE: To provide an engine cover device for a scooter type vehicle by which the collision of a flying stone and the adhesion and pile of mud to the jointed surface of the head cover of an engine with a cylinder are prevented and the head cover is taken off easily at the time of maintenance and also any possibility of the invasion of mud into the cylinder is eliminated. CONSTITUTION: In a scooter type vehicle mounting an engine 1 which is arranged almost horizontally and mates a cylinder head cover 4 with the cylinder and exposes the mating surface A, a mud cover 14 is covering the mating surface A of the head cover 4 with the cylinder and is installed in front of the head cover 4 of the engine 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine cover device for a scooter type vehicle engine.

[0002]

2. Description of the Related Art An engine 1 mounted on a scooter type vehicle, a side view of which is schematically shown in FIG. 6, has a valve 2 as shown in FIG. In some cases, the head cover 4 of the cylinder 3 can be attached and detached because it is necessary to adjust the clearance 2 and replenish oil.

The head cover 4 has a groove 5 formed on the periphery thereof, which is hermetically attached to the upper end edge of the cylinder 3 via a gasket 6 made of a material such as rubber.

In FIG. 6, 7 is an engine unit that includes the engine 1 and is swingably supported by a vehicle body frame 8 and supports a rear wheel 9 at a rear end, 10 is a rear cushion, 11 is a seat, 12 is a handle, Reference numeral 13 indicates a front wheel.

[0005]

However, in a vehicle equipped with the engine 1 as described above, mud, sand or the like flies by the front wheels 13 during traveling as shown by an arrow B in FIG. When the head cover 4 is removed, it takes a lot of time to remove the deposited and adhered earth and sand when the head cover 4 is removed for maintenance, and the head cover 4 is removed. At that time, there was a problem that earth and sand easily accidentally entered the engine.

Further, if there are few places where the head cover 4 is fastened to the cylinder 3, the head cover 4 is splashed by the front wheel 13 and the head cover 4 is crushed.
When the flying stones repeatedly hit the mating surface A between the head cover 4 and the cylinder 3 as indicated by the arrow D, the mating surface A is damaged and causes oil leakage.

In view of this, the present invention prevents the collision of flying stones and the deposition and accumulation of mud on the mating surface between the engine head cover and the cylinder, makes it easier to remove the head cover during maintenance, and may cause mud or the like to enter the cylinder. An object of the present invention is to provide an engine cover device for a scooter type vehicle.

[0008]

As a means for solving the problems of the above-mentioned prior art, the present invention is a scooter equipped with an engine which is installed in a substantially horizontal posture and in which the mating surface of the cylinder head cover and the cylinder is exposed. A model vehicle is characterized in that a mud cover for covering a mating surface of the head cover and the cylinder is attached to a front side of a head cover of the engine.

[0009]

Since the mud cover is attached to the head cover located on the front side of the engine installed in a substantially horizontal posture so as to cover the mating surface of the head cover and the cylinder,
This mud cover prevents the front wheels from directly hitting or adhering to the mating surface even if stones or mud splashed by the front wheels fly, and there is no damage to the mating surface or adhesion and accumulation of mud. The property is protected, the work of removing the head cover during maintenance is facilitated, and the mud deposited and deposited at that time is prevented from entering the cylinder.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 is a schematic side view of a scooter type vehicle to which the present invention is applied, and similarly to the scooter type vehicle shown in FIG. 6, an engine 1 is pivotally supported on a vehicle body frame 8 by a pin so as to be vertically swingable. The head cover 4 is provided in a substantially horizontal posture at the front of the engine unit 7, and the head cover 4 faces the front of the vehicle.

A mud cover 14 is attached to the front portion of the head cover 4 of the engine 1 so as to cover a mating surface A between the head cover 4 and the cylinder 3.

The mud cover 14 is the head cover 4
When viewed from the side of, it extends downward from the upper end position over the lower end,
A plate-like member having a shape and a size that covers the front surface of the head cover 4 when viewed from the front, and stones and mud splashed by the front wheels 13 during traveling as shown by arrows B and D in FIG. Head cover 4 and cylinder 3
It is designed to prevent hitting the mating surface A with.

The mud cover 14 is attached to the engine 1 by mounting it on the outer surface of the head cover 14 as shown in FIG.
A plurality of (two on the left and right in the figure) protrusions 15 and 15 are provided, the mud cover 14 is provided with boss-shaped holes 16 and 16 at positions aligned with the protrusions 15 and 15, and the mud cover 14 is also provided. An upper end portion of the head cover 4 is bent according to the shape of the head cover 4, and an engaging portion 17 that is fitted across the mating surface A of the head cover 4 and the cylinder 3 is formed at the tip end of the head cover 4 and the protrusions 15 and 15. The engine 1 is attached by fitting the holes 16 and 16 and fitting the engaging portion 17. Reference numerals 18 and 18 denote bolt holes for attaching the head cover 4 to the cylinder 3.

The engaging portion 17 has a shape conforming to the shape of the projection of the upper end portion of the head cover 4, and is fixed by press fitting or hooking. For example, as shown in FIG. 4, a projecting portion 19 that largely projects at the upper end of the head cover 4 is provided, and the engaging portion 17 of the mud cover 14 is fitted into this projecting portion 19 as shown in FIG. You can Further, not only the fitting but also the fixing means using the screw as an auxiliary may be used, and the clip-like fixing means may be additionally provided.

Therefore, the mud cover 14 is attached to the front side of the engine 1 so as to cover the mating surface A between the head cover 4 and the cylinder 3,
Even if stones or mud spattered by the front wheels 13 fly during running, these hit the mud cover 14 and are prevented from directly hitting the mating surface A between the head cover 4 and the cylinder 3.

As a result, the mating surface A is prevented from being damaged and the airtightness of the cylinder 3 is protected. At the time of removing the head cover 4 for maintenance, it is sufficient to remove the mud cover 4 without removing mud. The maintenance is easy, and mud does not enter the cylinder 3.

[0018]

As described above, according to the present invention, the mud cover is attached to the front portion of the head cover of the engine installed in a substantially horizontal posture so as to cover the mating surface of the head cover and the cylinder, so that the vehicle is running. In addition, stones and mud that the front wheels splash do not directly hit the mating surface between the engine head cover and cylinder, which prevents damage to the mating surface and prevents problems such as oil leaks. it can.

Further, since mud does not adhere and accumulate on the mating surfaces, the work of removing the mud during maintenance becomes unnecessary, the work of removing the head cover is facilitated, and the mud may enter into the cylinder at the time of removal. In addition, the mud cover can be easily manufactured at low cost and can be easily attached, and the mud cover can be applied to vehicles already on sale.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a scooter type vehicle to which the present invention is applied.

FIG. 2 is an enlarged cross-sectional view of a main part showing a mounted state of a mud cover.

FIG. 3 is an exploded perspective view of the mud cover and the head cover of FIG.

FIG. 4 is a view corresponding to FIG. 2 showing another modification of the same.

FIG. 5 is a view corresponding to FIG.

FIG. 6 is a schematic side view of a conventional scooter type vehicle to which the present invention is applied.

7 is an enlarged sectional view showing a mating surface portion between a head cover and a cylinder of an engine mounted on the vehicle shown in FIG.

[Explanation of symbols]

 1 Engine 3 Cylinder 4 Head Cover 7 Engine Unit 8 Body Frame 14 Mud Cover 17 Engagement Part

Claims (1)

[Claims] 1. A scooter-type vehicle equipped with an engine, which is installed in a substantially horizontal posture and in which a mating surface between the head cover and the cylinder is exposed, and a mud covering the mating surface between the head cover and the cylinder in front of the head cover of the engine. An engine cover device for a scooter type vehicle having a cover attached.