JPH02136383A - Motorcycle - Google Patents

Abstract

PURPOSE:To incline the upper section of a cowling downward and improve the aerodynamic characteristic and appearance by using projector lamps for a head lamp and arranging multiple projector lamps symmetrically on the right and left of a car body. CONSTITUTION:A head lamp 4 is arranged in front of a steering head pipe 2 supporting a front fork 3 and above a front wheel 3a. An instrument panel 7 is arranged above the head lamp 4, and the area from its periphery to the periphery of an engine 8 is integrally covered by a cowling 9. In this case, projector lamps 11 requiring a reflecting mirror 17 with a small diameter are used for the head lamp 4. Two projector lamps 11 for a passing beam and a running beam are arranged symmetrically on the right and the left across the center line of a car body respectively. The upper face of the cowling 9 is inclined downward.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a motorcycle in which a headlamp and instruments are covered with a cowling.

[Prior Art] Recently, in road sports type motorcycles, the engine has been installed from the front of the steering head pipe in order to reduce air resistance during high-speed driving, as seen in, for example, [Unexamined Japanese Patent Publication No. 62-283082]. The area around the area is covered with a cowling.

In this case, since the headlamp, various instruments such as the speedometer and engine tachometer are located in front of the steering head pipe, the upper part of the two-part cowling is used for the headlamp and other instruments. It integrally covers the cowling from the front to the sides, and the front lens of the headlamp is exposed at the front of the -L section of this cowling.

[Problems to be Solved by the Invention] However, conventional headlamps use a so-called parabolic mirror whose cross section is curved in a parabolic shape, and the light from the filament is converted into parallel light and directed forward. Since the configuration is such that the light is sent out and refracted by the front lens to obtain an appropriate light distribution, the diameter of the reflecting mirror inevitably increases in order to obtain a sufficient amount of light.

As a result, the position of the instruments shifts upward accordingly, and the upper part of the cowling, which has a large impact on the image of the front of the motorcycle, is also moved upwards to avoid interference with the instruments, as shown by the broken line in Figure 1. The design had no choice but to bulge upward, leaving room for small improvements in terms of improving aerodynamics and creating a sportier image.

Note that in order to simply lower the height of the cowling, it is sufficient to lower the position of the headlamp, but since the front wheel that moves up and down is located below the headlamp, taking into account the interference with this front wheel, The lower limit of the position of the headlamp is naturally determined, and therefore some kind of countermeasure has been required.

The present invention was made based on these circumstances, and
To provide a motorcycle which is convenient for improving aerodynamic characteristics and emphasizing a sporty image by allowing the upper front surface of a cowling to be tilted more diagonally downward than before.

[Means for Solving the Problem] Accordingly, in claim 1, a headlamp is provided in front of the steering head pipe that pivotally supports the front fork, and an instrument is provided above the headlamp, and these headlamps are And in a motorcycle with a cowling surrounding the instrument, as the headlamp,
Using a projector lamp that has a reflecting mirror with an elliptical cross-section and projects the filament light reflected by the reflecting mirror forward through a convex lens, multiple projector lamps are installed in the left and right directions of the car body across the center line of the car body. It is characterized by the fact that they are arranged symmetrically.

In addition, in order to achieve the same object, in claim 2, two projector lamps each having a reflecting mirror having an elliptical cross section are arranged side by side along the vertical direction on the center line of the vehicle body, and both sides of these projector lamps are arranged side by side along the vertical direction. It is characterized by having an instrument placed on at least one of the two.

[Function] According to the configuration described in claim 1, the projector lamp has a reflecting mirror that determines a light distribution pattern having an elliptical cross section,
Because the focal length is short, the reflection angle of the reflector can be used to a deep angle, and much of the light directed toward this reflector can be guided to the convex lens side.

Therefore, even if the diameter of the reflector is small, a sufficient amount of light can be obtained, so the headlamps and instruments can be lowered to compensate for the smaller diameter, and the coloring that covers these headlamps and instruments The upper front surface to the upper surface can be tilted more diagonally downward than in the past.

Further, according to the configuration described in claim 2, since the diameter of the reflector of the projector lamp is small as described above, even if two projector lamps are arranged one above the other, the diameter is still within the diameter of a headlamp using a conventional parabolic mirror. can be accommodated in At the same time, since the diameter is small, space can be secured on both the left and right sides of the projector lamp, and instruments can be placed using this space. For this reason, the instrument does not need to protrude significantly above the projector lamp, and the cowling can be tilted more obliquely downward from the front surface to the top surface of the cowling.

[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Reference numeral 1 in FIG. 1 is a frame constituting the body of a motorcycle, and a steering head pipe 2 is provided at the front end of the frame. A telescopic front fork 3 is pivotally supported on the steering radial pipe 2, and a front wheel 3a is supported at the lower end of the front fork 3. A headlamp 4 is arranged in front of the steering head pipe 2 and above the front wheels 3a. Above the headlamp 4, an instrument panel 7 equipped with a speedometer 5 and an engine tachometer 6 is provided. It is being The area from the periphery of the headlamp 4 and instrument panel 7 to the periphery of the engine 8 is integrally covered by a cowling 9. At the top of this cowling 9 is a transparent windscreen 1.
0, and this windscreen 10 extends rearward in a smoothly curved manner and covers the headlamp 4 and instrument panel 7 from above. .

Note that the headlamp 4 and the instrument panel 7 are supported by a subframe (not shown) that extends forward from the steering head pipe 2.

Incidentally, as the headlamp 4, a projector lamp 1 is used instead of a conventional lamp using a parabolic mirror. This projector lamp 11 will be explained with reference to FIG. 4 and FIG.
is a lamp unit, and this lamp unit 12 is equipped with a cylindrical lamp housing 13. The lamp housing 13 includes a lens barrel 14 and a guide barrel 16 screwed to the front end opening of the lens barrel 14, and the lens barrel 14 has a larger diameter than the guide barrel 16. Lens barrel 14
The rear end constitutes a reflecting mirror I7 curved to have an elliptical cross section, and a single filament type halogen light bulb 19 is attached to the rear end of this reflecting mirror 17 via a base 18. The filament 20 of this halogen bulb 19 is located at the first focal point inside the reflector 17. A convex lens 21 is provided in front of a second focal point where the light reflected by the reflecting mirror 17 among the light from the filament 20 is collected. This convex lens 21 is for projecting the light concentrated at the second focal point forward, and is caulked to the front end opening of the guide tube 16.

In this case, the projector lamp 11 for the low beam is equipped with a shade 22 at the second focal point for cutting off the light in two directions Wj that creates a shadow in the projected light. A receiver 22 has both ends protruding from the inner surface of the guide tube 16 and is screwed to the seat 23. On the other hand, the running beam (/Xi beam)
The projector lamp 11 used for this purpose does not have a shade 22 that cuts upward light, and is designed to emit bright, uniform light to a long distance.

Then, by providing two projector lamps 11 each for the passing beam and two projector lamps 11 for the running beam, that is, by making one unit with four lamps in total, the rad lamp 4 is configured into two parts. As shown in FIG. 2, these four projector lamps 1 are arranged symmetrically in a row with two lamps each across the center line X of the vehicle body.

Therefore, on the front surface 9a of the cowling 9 where the windscreen 10 is connected, four convex lenses 21 are arranged in a row in the left-right direction.

In this embodiment, the two outer lights are used for the running beam, but it is of course possible to use the two outer lights for the passing beam and the inner two lights for the running beam. It is.

According to such a configuration, in the projector lamp 11, the reflecting mirror 17 that determines the light distribution pattern has an elliptical cross section.
The focal length is short, and by using the reflecting mirror 17 at a deep angle, much of the light from the filament 2° directed toward the reflecting mirror 17 can be guided to the convex lens 21 side. Therefore, even if the diameter of the reflector 17 is small, a sufficient amount of light can be obtained, so the position of the headlamp 4 and the instrument panel 7 can be lowered by the amount that the diameter is reduced, and the headlamp 4 and the instrument panel Front surface 9a of cowling 9 covering panel 7
The line from the top surface of the windscreen 10 to the top surface of the windscreen 10 can be inclined more diagonally downward than in the past.

Therefore, the upper part of the cowling 9, which is an important element in the design of a motorcycle, is curved forward, improving aerodynamic characteristics and emphasizing a sporty image, which is advantageous in terms of appearance. There are advantages such as:

Note that the present invention is not limited to the above-mentioned embodiment, and FIG. 6 shows a second embodiment of the present invention.

In this second embodiment, when arranging the four projector lamps 11 in a line along the left and right direction of the vehicle body, the projector lamps 11 for the running beam located on both outer sides are slightly moved back, and the adjacent large diameter projector lamps 11 are moved back slightly. While shifting the lens barrels 14 in the front-back direction, move the projector lamps 11 on both outer sides to the center line of the vehicle body until the lens barrels 14 overlap each other in the front and rear.
It is placed closer to the first side.

According to this configuration, even though the headlamp 4 is of a four-lamp type, the spacing between the convex lenses 21 located on both sides of the headlamp 4 can be narrowed. As you advance, you can tilt it backwards to further improve aerodynamics.

7 and 9 show a third embodiment of the present invention.

In this third embodiment, two projector lamps 11 are arranged vertically on the center line X1-2 of the vehicle body, and therefore two convex lenses 21 are provided on the front surface 9a of the cowling 9. 1 lined up and exposed] 1. In the case of this embodiment, an engine tachometer 6 and a speedometer 5 are arranged separately on both the left and right sides of the projector lamp 11, and these engine tachometer 6 and speedometer 5 are roughly connected to the upper projector lamp 11. are located at the same height.

In this embodiment, the -L side projector lamp 11 is used for the passing beam, but on the contrary, the upper projector lamp 11 may be used for the running beam.

According to such a configuration, the projector lamp 11 is
As already mentioned, even if the diameter of the reflecting mirror 17 is small, a sufficient amount of light can be obtained, so this projector lamp 11 is
Even if two of them are placed side by side under L, the diameter can be kept within the diameter of a headlamp using a conventional parabolic mirror.

In addition, the projector lamp 11 has a smaller diameter.
Sufficient space can be secured on both sides of the cowling 9, and the speedometer 5 and engine tachometer 6 can be easily accommodated in this space. It can be located at approximately the same height as 11.

Therefore, the speedometer 5 and engine tachometer 6 do not need to protrude to one side of the headlamp 4, and the front surface 9 of the cowling 9
The area from a to the top surface of the windscreen 10 can be tilted more diagonally downward than in the past.

In addition, in the third embodiment of Part 2, the speedometer and engine tachometer were arranged separately on both the left and right sides of the projector lamp, but in some cases, the instruments may be arranged concentrated only on one side of the projector lamp, or the speedometer In the case of a motorcycle equipped with only a speedometer, the speedometer may be placed on one side of the projector lamp.

[Effects of the Invention] According to the configuration described in claim 1, the projector lamp can obtain a sufficient amount of light even if the diameter of the reflector is small, so the position of the headlamp and instruments can be adjusted by the amount of the smaller diameter. The cowling can be lowered, and the line from the front of the two parts of the cowling to the top can be tilted more diagonally downward than before.

Therefore, the upper part of the cowling, which is an important element in the design of motorcycles, is lowered forward, which improves aerodynamic properties and emphasizes a sporty image, which is advantageous in terms of appearance. Become.

Moreover, according to the configuration of claim 2, a wide space can be secured on both the left and right sides of the projector lamp, and the instruments can be easily accommodated in this space. As a result, the instruments do not need to protrude above the headlights, and the line from the front of the upper part of the cowling to the top surface can be sloped downward more diagonally than before, further emphasizing the forward-sloping design.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention.
The figure is a side view of the motorcycle, Figure 2 is a plan view of the headlamp area, Figure 3 is a front view of the cowling, Figure 4 is a sectional view of the projector lamp, and Figure 5 is the line v-v in Figure 4. 6 is a plan view showing a second embodiment of the present invention,
7 to 9 show a third embodiment of the present invention;
The figure is a side view of the motorcycle, FIG. 8 is a plan view of the area around the headlamp, and FIG. 9 is a front view of the cowling. 1... Vehicle body (frame) 2... Steering head pipe, 3... Front fork, 4... Headlamp, 5, 6... Instruments (speedometer, engine revolution meter)
, 9... Cowling, 11... Projector lamp, 17... Reflector, 20... Filament, 21...
··convex lens. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] 1. A motorcycle in which a headlamp is provided in front of a steering head pipe that pivotally supports a front fork, an instrument is provided above the headlamp, and a cowling covers the headlamp and the instrument. The headlamp has a reflecting mirror with an elliptical cross section,
And using a projector lamp that projects the filament light reflected by this reflector forward through a convex lens,
A motorcycle characterized in that a plurality of projector lamps are arranged symmetrically in the left-right direction of the vehicle body across the center line of the vehicle body. 2. In a motorcycle in which a headlamp and instruments are provided in front of the steering head pipe that pivots the front fork, and a cowling covers the periphery of these headlamps and instruments, a reflector with an oval cross section is used as the headlamp. have,
And using a projector lamp that projects the filament light reflected by this reflector forward through a convex lens,
A motorcycle characterized in that two of these projector lamps are arranged side by side along the vertical direction on the center line of the vehicle body, and the above-mentioned instrument is arranged on at least one of the left and right sides of these projector lamps.