JPH0359877B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a windshield lighting device attached to a motorcycle, such as a motorcycle, scooter, or motorized bicycle.

[Conventional technology]

Like automobiles, drivers of motorcycles are directly exposed to the wind and rain, so it is known that a windshield 2 is attached to the front of the vehicle 1 to protect the driver from the wind and rain, as shown in FIG.

[Problem that the invention seeks to solve]

However, because this type of two-wheeled vehicle is smaller than a general automobile and has fewer lighting devices due to its structure, it is less noticeable, especially when driving at night, and may be involved in an unexpected accident. Furthermore, traffic accidents involving two-wheeled vehicles pose a significantly higher risk to life than those involving automobiles, and require extreme caution when driving. However, there is insufficient consideration given to the safety of the vehicle itself, and there is a demand for a structure that makes it easier for drivers of other vehicles to notice from a distance, especially when driving at night.

SUMMARY OF THE INVENTION Therefore, the present invention aims to solve the above-mentioned drawbacks and provide a lighting device for a windshield for a two-wheeled vehicle, which makes it easier for drivers of other vehicles to notice from a distance when driving at night, and improves safety. It is.

[Means for solving problems]

In order to achieve the above object, the illumination device for a motorcycle windshield according to the present invention includes a light guide disposed in part or all of the periphery of the windshield, and the light emitted from the light source is directed through the light entrance part of the light guide. It is configured so that the light enters the light guide and exits from the light output section.

[Effect]

In the present invention, when driving at night, the peripheral edge of the windshield appears to be shining due to the light output portion of the light guide.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is a perspective view of an embodiment of a motorcycle windshield illumination device according to the present invention, seen diagonally from the rear, FIG. 2 is a cross-sectional view of the light source mounting part, and FIG. 3 is an enlarged cross-sectional view taken along the line shown in FIG. It is a diagram. In these figures, 4 is a frame-shaped light guide disposed along the periphery of the windshield 2, and 5 is a light source that illuminates the light guide 4 when driving at night. 6.

The windshield 2 is formed into a plate shape from a transparent or appropriately colored translucent resin material such as polycarbonate or acrylic resin, and its lower end is fixed to a windshield mounting plate 7 installed on the handle. There is. Among the peripheral edges of the windshield 2, especially the upper edge and the left and right side edges 2A have a circular cross-sectional shape as shown in Fig. 3 to increase strength and rigidity. The light guide 4 is disposed on the side peripheral surface with a spacer 8 interposed therebetween, and is fixed by a plurality of set springs 9.

The light guide 4 is formed by bending a rod-shaped body with a circular cross section made of a transparent resin material with excellent reflective properties such as acrylic resin into a frame shape having approximately the same size as the windshield 2. Both ends 4a, 4b
is guided to the back side of the windshield mounting plate 7. The end surfaces of these end portions 4a and 4b are connected to the light source 5.
The light entrance section 10 is arranged so as to face each other with the
The light 14 from the light source 5 is input into the light guide 4 through these light incident portions 10a and 10b. The light source 5 is a lamp body 11 fixed to the central part of the back surface of the windshield mounting plate 7.
Both end portions 4a and 4 of the light guide 4 are arranged on both side plates 11a and 11b of the lamp body 11, respectively.
4b are inserted into the insertion holes 12a and 1, respectively.
2b is formed. The remaining portion of the light guide 4 excluding the both ends 4a and 4b, that is, the windshield 2
A light emitting portion 13 is formed over the entire length of the portion corresponding to the upper edge and both left and right side edges, and the light 14 is emitted from this light emitting portion 13 to the outside. That is, when the surface of the light guide 4 is mirror-finished, the light 14 only travels through the light guide 4 while repeating total reflection and does not exit to the outside, so that the light guide 4 is not illuminated. Therefore, the light output section 13
It is necessary to provide the light 14 from which the light 14 is emitted to the outside.

In this case, various manufacturing methods can be considered for forming the light emitting portion 13, one example of which is shown in FIG. That is, Fig. 1A shows a case in which minute unevenness 15 is formed by frosting or texturing on the peripheral surface of the light emitting portion 13 of the light guide 4 on the side opposite to the direction in which the light 14 is desired to be emitted, and Fig. 3B shows a A tape 16 of a color such as white having excellent reflective properties is pasted on the circumferential surface of the light emitting part 13 on the side opposite to the direction in which the light 14 is to be emitted. A reflective film layer 17 is formed by printing or painting on the peripheral surface on the side opposite to the direction in which the light 14 is desired to be emitted. In this case, the part where the tape 16 is attached and the reflective film layer 1
The surface of the light guide at the portion where 7 is formed constitutes a very fine diffused reflection surface, similar to the unevenness 15 formed by the seabo processing, and reflects the light 14 in all directions. FIG. 4b shows an example in which a groove 18 is formed on the circumferential surface of the light emitting part 13 along its longitudinal direction, and the light 14 traveling inside the light guide 4 hits the wall of the groove 18 and is reflected. This makes the exterior walls shine. FIGS. 4e and 4f show an example in which the light emitting part 13 is formed discontinuously by stipples 19 and scratches 20, which are small V-shaped recesses formed on the circumferential surface of the light emitting part 13.

The spacer 8 is made of an elastic material such as rubber, and has semicircular fitting grooves 23 and 24 formed over its entire length on its front and rear surfaces as shown in FIG. The peripheral edge portion 2A of the windshield 2 and the light output portion 13 of the light guide 4 are respectively fitted into the grooves 23 and 24 and fixed with adhesive or the like. A set spring 9 for fixing the light guide 4 to the windshield 2
is usually formed into a C-shape using a metal plate for strength reasons, but since it blocks the illumination of that part, the 5th
An opening 25 may be provided as shown in the figure, or the set spring 9 itself may be made of a transparent resin material.

In the windshield lighting device 6 having such a configuration, when the light source 5 is turned on, the light 14 is transmitted to the light guide 4.
The light enters the light guide 4 from each of the light input portions 10a and 10b, travels while being totally reflected on the inner surfaces of both end portions 4a and 4b, and is diffusely reflected at the light output portion 13, whereupon part of it is emitted to the outside. . As a result, the light output section 13
The vehicle is illuminated brightly and effectively, allowing drivers of other vehicles to clearly recognize the presence of the vehicle even from a distance when driving at night. Therefore, safety during night driving is improved and accidents are prevented. Furthermore, if the circumferential portion of the windshield 2 appears shiny, the design is novel and increases the added value of the motorcycle.

FIG. 6 is a perspective view showing another embodiment of the present invention, and FIG. 7 is a sectional view of the main part. In this embodiment, the light guide 4
Both ends 4a and 4b of the headlamp 30 are attached to the lamp body 3 of the headlamp 30.
1, the headlights 3
0 light source 32 is commonly used as a light source for the windshield illumination device 6. The reflector 33 of the headlight 30 has each light entrance part 10 of the light guide 4.
Small holes 34a and 34b are formed corresponding to a and 10b. Part 1 of the light emitted from the light source 32
4 is the light part 10 through each of the small holes 34a and 34b.
The light enters the light guide 4 from a and 10b. In this case, as a method of guiding the light 14 emitted from the light source 32 to the light guide 4, the small holes 34a, 34 in the reflector 33 are
The method is not limited to the method of providing the lens b, for example, light may be introduced from the side of the front lens 35 as shown by the two-dot chain line in FIG.

Note that the other configurations are almost the same as those of the above embodiment.

In such a configuration, since the light source 32 serves as the light source for both the headlight 30 and the windshield illumination device 6, it has the advantage that the number of parts can be reduced and the assembly means can be saved.

In addition, although the above-mentioned embodiments all show examples using the light guide 4 made of a rod-shaped body with a circular cross-sectional shape, the present invention is not limited to this in any way, and the cross-sectional shape of the light guide 4 is used. It goes without saying that the shape may be changed as appropriate; for example, even if the shape is triangular, quadrilateral, oval, etc., the object of the present invention can be fully achieved.

Further, in the above embodiment, both ends 4a and 4b of the light guide 4 are
The remaining portion excluding the light emitting portion 13 is used for illuminating the light emitting portion 13. However, in the case where the entire light guide 4 is located on the front side of the windshield 2 as in the embodiment shown in FIG. Of course, both ends 4a and 4b may also be used as light emitting portions to provide bright illumination.

〔Effect of the invention〕

As explained above, according to the motorcycle windshield illumination device according to the present invention, the peripheral edge of the windshield can be seen shining, making it easy to see from a distance when driving at night, thereby improving safety. In addition, the structure is simple, the design and appearance are good, and the effect of improving fashionability is great.

[Brief explanation of drawings]

Fig. 1 is a perspective view from the rear showing an embodiment of the windshield illumination device according to the present invention, Fig. 2 is a sectional view of the light source mounting part, Fig. 3 is an enlarged sectional view taken along the lines of Fig. 1, and Fig. 4 a to f are views showing modified examples of the light emitting part, FIG. 5 is a perspective view showing another embodiment of the set spring, FIG. 6 is a perspective view showing another embodiment of the present invention, and FIG. FIG. 8 is a perspective view showing a conventional example of a scooter. 1...Vehicle, 2...Windshield, 4...Light guide, 5...
...Light source, 6...Windshield lighting device, 7...Windshield mounting plate, 8...Spacer, 9...Set spring,
10a, 10b...Light entrance part, 13...Light exit part, 1
4...Light.

Claims (1)

[Claims] 1. A light guide having a light input part and a light output part is provided on a part or all of the periphery of the windshield, and the light emitted from the light source is made to enter the light guide from the light input part, and the light is emitted from the light output part. 1. A lighting device for a windshield for a two-wheeled vehicle, characterized in that the light emitting portion is illuminated by emitting light to the outside.