JPH0492790A - Cowling for motorcycle and manufacture thereof - Google Patents

Abstract

PURPOSE:To exhibit dynamic feeling and functional beauty peculiar to a motorcycle while exhibiting essential function of a cowling by constituting at least a part of a cowling to cover the body of a motorcycle out of a transparent body so as to see through the body. CONSTITUTION:A front cowling Cf to cover the front part of a body B such as a frame 1, a front fork 3, an engine E, is provided in front of the frame 1. In this case, the front cowling Cf is constituted by combining in one body with an upper cowl 10, a pair of right and left middle cowls 11, and a pair of right and left lower cowls 12 which are all made of colorless or colored transparent ABS resin material. Similarly a rear cowling Cr to cover a rear frame 8 is constituted out of colorless or colored transparent ABS resin material, and front and rear seats Sf, Sr are provided on the front and rear upper face of it. Hereby, while exhibiting essential function of the cowling, the mechanical construction in a motorcycle can be seen through the cowling, and dynamic feeling and functional beauty peculiar to the motorcycle are exhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION A9 Object of the Invention (1) Field of Industrial Application The present invention relates to a cowling provided to cover the body of a motorcycle, and a method for manufacturing the cowling.

(2) Conventional technology Conventionally, motorcycles have been known in which various types of cowlings are provided on the body of the motorcycle (see the book "Bike Mechanism Illustrated Book" Fairing and Air Resistance, Grand Prix Publishing Co., Ltd.) .

(3) Problems to be Solved by the Invention In recent years, we have entered an era of high-speed motorcycles, as typified by rotacers, and high-speed motorcycles with maximum speeds of 180 km/h or more have appeared.

By the way, as motorcycles increase in speed, naturally increased air resistance and rider fatigue due to wind pressure become a problem, and as a measure to reduce these problems, cowlings are installed on the vehicle body.6 However, cowlings are generally made of an opaque material. Since this is normal, the engine and other mechanical parts are blocked off by this cowling, making them impossible to see from the outside, which detracts from the dynamic feel and functional beauty that is unique to motorcycles, and from which the diversifying number of users There was a problem that there were cases where the preferences of third parties were not met.

An object of the present invention is to provide a novel cowling that solves the above problems and a method for manufacturing the same.

B3 Structure of the Invention (1) Means for Solving the Problems To achieve the above object, the invention of claim 0 is a cowling provided therein to cover the body of a motorcycle, the cowling comprising: The cowling is characterized in that a portion of the body is made of a transparent material so that the body can be seen through, and the invention of claim 0 provides a cowling provided on the body of a motorcycle to cover the body. , the cowling is characterized in that a portion facing a side surface of the engine mounted on the vehicle body is formed of a transparent body so that the side surface of the engine mounted on the vehicle body can be seen through; A method for producing a colorless transparent material for use in
The present invention is characterized by comprising a step of injection molding a cowling molded body using a BS resin material, and a step of painting a colorless clear paint on both the front and back sides of the cowling molded body, and further according to the invention of claim 0. For example, a method for manufacturing a colored transparent body for a cowling includes a step of injection molding a cowling molded body using an ABS resin material, and mixing an appropriate amount of at least one of a dye or a pigment with a clear paint on the surface of the cowling molded body. The present invention is characterized by comprising the steps of painting the cowling molded body, and painting a colorless clear paint on the back surface of the cowling molded body.

(2) Function According to the above-mentioned structure of the cowling, the cowling is attached to the vehicle body and exhibits its cowling function, and the internal mechanical structure of the motorcycle can be seen through the cowling, giving it a sense of dynamism and functionality unique to motorcycles. You can bring out your beauty.

Additionally, the interior can be seen through without removing the cowling, making maintenance easier.

Further, according to the method for manufacturing a cowling, the colorless transparent body and the colored transparent body can be simply and easily manufactured from a cowling molded body by conventional injection molding.

(3) Examples Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall side view of a motorcycle equipped with a cowling according to the present invention, which is an embodiment of the present invention.
A front fork 3 with a front wheel Wf mounted on its lower end and a steering handle 2 mounted on its upper end is supported so as to be steerable, and a swing arm 4 with a rear wheel Wr mounted on its upper end is mounted on the rear of the frame 1 so that it can be rotated up and down. is swingably supported. Before,
Between the rear wheels Wf and Wr, the frame 1 has a front wheel.

A ■-type engine E, which constitutes a part of a vehicle body B, in which cylinder portions 5 and 6 are arranged in the rear direction is suspended.

A fuel tank T is mounted on the frame 1, and a rear frame 8 extending rearward is integrally fixed to the rear part of the frame 1, and an exhaust system 9 for the engine E is attached to the rear frame 8.
is supported.

A front cowling Cf is provided at the front of the frame 1 to cover the front of the vehicle body B including the frame 1, front fork 3, engine E, and the like. This front cowling Cf
As will be described in detail later, it is constructed by integrally joining together an upper cowl 10 made of a colorless or colored transparent ABS resin material, a pair of left and right middle cowls 11, and a pair of left and right lower cowls 12. The upper cowl 10 mainly covers the upper part of the front fork 3 and the equipment attached thereto, and has a transparent windscreen 13 on its upper edge, and a headlight lens 1 on its front.
4 is installed. The pair of left and right middle cowls 11 mainly cover the left and right side surfaces of the upper half of the engine E. A side lamp 15 is attached to the upper part of each middle cowl 11, and a ventilation hole 16 is attached to the center of the middle cowl 11.
17 is opened. In addition, a pair of left and right lower cowls 12
mainly covers the left and right side surfaces of the lower half of the engine E, and a ventilation port 18 for cooling the exhaust system 9 of the engine E is also opened there.

The rear frame 8 is provided with a rear cowling Cr that covers it, and this rear cowling Cr is also made of a colorless or colored transparent ABS resin material as will be described in detail later.

Rear seats Sf and Sr are provided.

Both the colorless or colored transparent front cowling Cf and rear cowling Cr are constructed from the same material and the same manufacturing method, and their base materials are acrylic resin,
ABS resin consisting of butadiene resin and styrene resin is used.

By the way, this ABS resin has a property that by reducing the content of butadiene resin, the transparency of the molded product after injection molding increases, but on the other hand, the impact resistance decreases, so in this example, the transparency was reduced. ABS resin with a reduced content of butadiene resin is used as the cowling to make it easier to expose the cowling to the extent that the necessary rigidity can be ensured.

Next, the cowlings Cf and C are made completely colorless and transparent.
To explain the manufacturing process of R, first, the ABS resin material is injection molded using a normal injection mold under normal conditions to obtain a milky white cowling molded body 20 (FIG. 2).

Next, as shown in FIG. 2, a known colorless clear paint made of acrylic melamine resin or acrylic urethane resin is applied to the front and back surfaces of the cowling molded body 20 to coat colorless transparent layers 21 and 22.

Through the above steps, a colorless and transparent cowling is completed.

When clear coating is applied to the milky-white cowling molded body 20, it becomes transparent because the clear layers 21 and 22 fill in the uneven surface of the cowling molded body 20 and make it a smooth surface.

Next is the colored transparent front and rear cowling Cf.

To explain the manufacturing process of Cr, the surface of the cowling molded body 20 molded by injection molding of the above-mentioned ABS resin is coated with the clear paint mixed with 0.5 to 1% by weight of an organic dye and an inorganic pigment, or Either 0.5 to 1% by weight of the dye is mixed into the clear paint, or 0.5 to 1% by weight of the pigment is mixed into the clear paint.
The colored transparent layer 23 is coated by applying a mixture of 5 to 1% by weight, that is, a colored transparent clear paint.

On the other hand, the back surface of the cowling molded body 20 is coated with the colorless transparent layer 22 by applying the colorless transparent clear paint.

By the way, the back side of an unpainted cowling molded body is difficult to paint because it has more uneven shapes than the front side, and it is also difficult to coat the entire surface well, so if colored clear paint is applied to this back side, the color Since this tends to cause unevenness and shading, the colored transparent paint is applied only to the surface of the cowling molded body 20 as described above.

Another embodiment of the invention is shown in FIG.

In this embodiment, conventional opaque parts are provided in parts of the front cowling Cf and the rear cowling Cr, and the lower region of the front cowling 10 of the front cowling Cf is formed of the opaque body A, and the remaining part is formed of the opaque body A. It is composed of the above-mentioned colorless transparent or colored transparent body.

The middle cowl 11 of the front cowling Cf is the same as in the above-mentioned embodiment (the entire body is made of a colorless transparent material or a colored transparent material, and the side surface of the upper half of the engine E facing the middle cowl 11 is middle cowl 11
It can be seen from the outside through. Furthermore, the lower cowl 12 of the rear cowling Cr is entirely composed of the opaque body A, as in the conventional one.

Next, the rear cowling Cr has a front half made of a colorless or colored transparent material, and a rear half made of an opaque material A.

In the embodiment shown in FIG. 3, the front and rear cowlings Cf and Cr are each provided with a transparent portion and an opaque portion to give an accent and enhance the design effect.

Effects of the C6 invention As described above, according to the inventions of claims ① and 0,
By attaching a cowling to the vehicle body, the cowling performs its original function, and the inside of the motorcycle can be seen through the cowling, giving the motorcycle its unique sense of dynamism and functional beauty. You can further increase the value.

It also helps improve maintenance by allowing you to see through the interior without removing the cowling.

Further, according to the inventions of claims (2) and (0), the colorless transparent body and the colored transparent body of the cowling can be simply and easily produced from a cowling molded body by conventional injection molding, and the cowling can be provided at a low cost. can do.

[Brief Description of the Drawings] Fig. 1 shows an embodiment of the present invention, and Fig. 2 is an overall side view of a motorcycle equipped with a cowling, and Fig. 2 is a side view of a motorcycle equipped with a cowling.
The enlarged line sectional view, FIG. 3, shows another embodiment of the present invention, and is an overall side view of a motorcycle equipped with a cowling. B...Vehicle body, Cf...Front cowling, Cr.
...Rear cowling, E...Engine diagram 2

Claims (1)

[Scope of Claims] [1] A cowling (Cf, Cr) provided therein to cover the body (B) of the motorcycle, the cowling (Cf, Cr) being transparent to the body (B). A cowling for a motorcycle, characterized in that at least a part of the cowling is made of a transparent body. [2] A cowling (Cf, Cr) provided to cover the body (B) of the motorcycle, and the cowling (Cf, Cr) covers the engine (E) mounted on the body (B). A cowling for a motorcycle, characterized in that a portion facing the side surface of the engine (E) is made of a transparent material so that the side portion can be seen through. [3] The transparent body is a colorless transparent body, the above [1]
, or the motorcycle cowling according to item [2]. [4] The transparent body is a colored transparent body, the above [1]
, or the motorcycle cowling according to item [2]. [5] The method for manufacturing the colorless transparent body for cowling, which includes the steps of injection molding a cowling molded body (20) from an ABS resin material, and applying a colorless clear paint to both the front and back sides of the cowling molded body (20). A method for manufacturing a cowling, which comprises a step of painting. [6] The method for manufacturing the colored transparent body for a cowling, which includes the steps of injection molding a cowling molded body (20) using an ABS resin material, and applying an appropriate amount of dye or pigment to the surface of the cowling molded body (20). A method for producing a cowling, comprising the steps of: painting at least one of the materials mixed with a clear paint; and painting a colorless clear paint on the back surface of the cowling molded body (20).