JPS6067280A - Cowling device for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cowling (also referred to as a windshield) device that covers a motorcycle from around the driver's seat to the left and right sides of the engine and below the engine.

This type of cowling device is also called a full cowling device because it hides the headlight area and the engine area, but normally such cowling devices have an opening at the front of the button to guide the running wind to the engine, A flange portion extending inward is formed at the opening edge of the intake port.

In addition, the left and right side walls have been designed to enhance the cooling effect of the engine.
It forms an entrance and exit for the wind when traveling.

Such cowling devices are made of synthetic resin, but if the full cowling device is molded in one piece, it would be impossible to attach it to the vehicle body, so it cannot be molded in one piece. Therefore, it is divided into multiple cowlings, and these are It is constructed by joining each cowling.

When dividing the cowling device into multiple cowlings, the fewer the number of divisions, the fewer parts are required for assembly.
It saves you the trouble of disassembling it. However, when the number of divisions is small, for example, in the case of a two-division structure, the uneven shape becomes complicated, and therefore the lamination molding method must be used, and this method is not suitable for mass production.

An object of the present invention is to provide a cowling device for a motorcycle that can be manufactured by an injection molding method that allows mass production, and that is divided into the minimum number of divisions without complicating the mold. .

That is, the present invention provides a cowling device including an upper cowling that covers the area around one headlamp, and a left and right side that covers the left and right sides of the engine and has a flange portion for the running air intake at the front end, and has an opening for the running air inlet/outlet on the wall surface. It is characterized by being divided into a lower cowling and a lower cowling that covers the lower part of the ennon and has a flange at the front end.

An embodiment of the present invention will be described below based on the drawings.

The motorcycle shown in Figure 1 has a V-type water-cooled engine 2f in the frame 1! The ennon 2 is water-cooled by forming a cooling water circulation path with the zoator 4 attached to the front of the downcheep 3 of the frame 1.

Reference numeral 5 denotes a cowling device according to the present invention, and this cowling device 5 covers the front of the steering nondle 6 and covers the head run f.
It continuously covers the area around the engine 7, the left and right sides of the engine 2, and the lower part of the engine 2. As shown in FIG. 2, this cowling device 5 has a running air intake port 8 at the front. Therefore, the running wind introduced from this intake port 8 cools the radiator 4 and the engine 2, and flows rearward. A flange portion 9 is formed at the opening edge of the intake port 8 and extends inward over the entire circumference. This flange portion 9 is provided to improve the appearance and to reinforce the synthetic resin cowling device 5. There is. A light projection window 10 is opened above the traveling wind intake 8 to allow light projected from the head runner to pass therethrough. Furthermore, an outlet 11.11 and an inlet 12.12 for running air are formed on the left and right side walls of the cowling device 5. As shown in Fig. 4, the running wind outlet 11.11 guides the running wind warmed by heat exchange in the radiator 4 toward the outside and rear of the vehicle body, and the running wind inlet 12.12 is connected to the outside of the vehicle body. This system cools engine 2 by introducing cold running air.
It was established to enhance the cooling effect of

As shown in exploded view in FIG. 3, such a cowling device 5 includes an upper cowling 13 and left and right side cowlings 1.
4.15 and lower cowling 16, and these divided cowlings 13 to 16? bolt or screw 17.
They are assembled integrally by being joined by...

The upper cowling 13 has a front wall 13m and left and right side walls 13.
b and 13c are continuous, and the plane has a substantially U vertical line '&-', and the above-mentioned light emitting window IO is opened in the front wall 13a, and the lower part of the light emitting window 10 is opened. The flange portion 9
It has a flange portion 9a which is a part of the flange portion 9a. A windshield glass 18 (made of transparent resin may also be used) is removably attached to the upper end of the upper cowling 13 with screws 19 . Such an upper cowling 13 is formed by injection molding of a synthetic resin material, and its molding die (not shown) is divided in the front and rear direction of the vehicle body with arrows -A-A' in Fig. 3 to form the product. is taken out.

For this reason, it has a light projection window 10 and has a planar shape of approximately U.
It becomes possible to injection mold the upper cowling 13 in the shape of a letter.

Since the left and right side cowlings 14 and 15 are substantially symmetrical, the left side cowling 14 will be explained. As shown in cross-section in FIGS. 4 and 5, the left cowling 14 has a gently curved shape in the front-rear direction, and has a flange portion 9b forming a part of the aforementioned flange portion 9 at its front end edge. is provided. This left cowling 14 has an opening as shown in FIG.

Further, as shown in FIG. 5, a recess 2 is formed in the lower part of the left cowling 14, and the recess 2 is recessed toward the inside, and the travel wind opening 12 is opened at the rear end of the recess 2. The left side cowling 14 is also formed by injection molding from a synthetic resin material, and its molding die (not shown) is used to move the force direction of the cowling 14 in the direction of the arrows B-B' in FIGS. Cowling 14 by being divided
is taken out. From this, the flange portion 9b,
Convex portion 20° Traveling wind outlet 11. It is possible to integrally mold the left cowling 14 with the recess 21 and the running air hole 12.

Furthermore, the lower cowling 16 has a vertical cross section of approximately 7 or U.
A flange portion 9C forming a part of the seven-run portion 9 is formed on the front edge of the flange portion 9C. As shown in FIG. 6, this flange portion 9c extends obliquely upward.

Such a lower cowling 16 is also formed by injection molding from a synthetic resin material, and the injection mold is divided into vertical sections inclined in the force direction, that is, in the front-rear direction, indicated by arrows c-c' in FIGS. 3 and 6. This allows the product to be taken out.

The cowling device 5 having such a configuration is formed by joining the upper cowling 13, the left and right side cowlings 14, 15, and the lower cowling 16 with the screws 17, and therefore can be easily assembled to the vehicle body. ' Maintenance inspection of the head rung area and engine 2.

When repairing the collar, only the ring corresponding to the work area can be removed.

Moreover, since the cowlings 13 to 16 are injection molded products made of synthetic resin, mass production is possible. In this case, the molds for injection molding each cowling are indicated by arrows AA'.

Since the molded product can be taken out by dividing in the B-B' and c-c' force directions, the shape of the mold does not become complicated and it can be manufactured at low cost.

As explained above, according to the present invention, the cowling device is divided into the upper cowling, the left and right side cowlings, and the lower cowling, so that each of these cowlings can be injection molded, and is not a blank type suitable for mass production. Dividing has the advantage that the injection mold has a simple divided structure and can be manufactured at low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of a motorcycle, FIG. 2 is a perspective view of a cowling device, FIG. 3 is an exploded perspective view of the cowling device, and FIGS. 4 and 5. 1. Frame, 2. Engine, 5. Cowling device, 6. Steering wheel, respectively.
7...head rung, 8 + 42 Fil fm
in/l −, −y,; H/,・fuhRvr1
2... Traveling wind entrance, 13... Upper cowling, 1
4, -15...Left and right side cowlings, 16...Lower h cowlings, 9a, 9br9c...flange portions.

Claims (1)

[Claims] It covers the area from around the headlight of the motorcycle to the left and right sides of the engine and below the engine, has a running air intake in the front, and has a flange extending inward at the opening edge of the intake. In addition, this cowling device has a running air inlet/outlet on the left and right side walls.This cowling device is made of injection molded synthetic resin, and consists of an upper cowling that covers around the head rung, and a front end that covers the left and right sides of the engine. A motorcycle characterized in that it is formed by joining left and right side cowlings having the above-mentioned flange portions and having the above-mentioned entrances and exits on the walls, and a lower cowling that covers the lower part of the engine and has the above-mentioned flange portions at the front end. cowling device.