JPH07114812A - Lamp device for vehicle - Google Patents

Abstract

PURPOSE:To provide a lamp device by which a light source becomes hard to be viewed from outside by emitting light uniformly from the whole lens surfaces and a lens cut surface can be reduced. CONSTITUTION:A transmissive metal plating film 68 is applied to respective inside surfaces of side surfaces 62, a rear surface 64 and a front surface 65 of a lens 60 constituting a tail lamp 29, and a light source of a long discharge tube 66 or a point light source 67 or the like is radiated from below a bottom part 63 in which a cut surface is formed. Since light entering the lens 60 is complicatedly reflected and refracted by the transmissive metal plating film 68, the whole surfaces of the side surfaces 62 and the rear surface 64 of the lens 60 are uniformly created, and deep light emission by which the light source becomes hard to be viewed is generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a vehicle in which the entire lens surface can emit light as uniformly as possible.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. 4-46304 discloses that a collimated light reflected by a reflector is applied to a lens that is complicatedly cut. Also, the actual Kaihei 5-56
Japanese Laid-Open Patent Publication No. 625 discloses a light source in which the optical axis is parallel to the windshield and a reflector reflects the light from the light source toward the windshield.

[0003]

By the way, it is desirable that the lens surface be made to emit light as uniformly as possible so that the unevenness of light is reduced so that the shape of the light source cannot be seen from the outside. Also in the conventional example, since the reflector is used only for reflection, such a request cannot be sufficiently satisfied. Then, this invention aims at solving the problem which concerns.

[0004]

In order to solve the above problems, a vehicle lighting device according to the present application includes a light source and a lens, and a transparent plating film is formed on an inner surface of a lens surface through which light of the light source passes. It is characterized by having done. A partition plate having a transparent plating film may be provided inside the lens.

[0005]

The light from the light source is partly reflected by the transparent plating film and the other part is transmitted through the transparent plating film, so that the reflection and refraction inside the lens are extremely complicated, and the light emission is on the lens surface. The light is made uniform throughout, the presence of the light source is difficult to see, and deep light emission is obtained. Further, when the partition plate provided with the transparent plating film is provided in the lens, the light is more uniformly dispersed, and a certain directivity is also generated depending on the angle of the partition plate.

[0006]

Since the transparent plating film is provided on the inner surface of the lens surface through which the light of the light source passes, the light is refracted and reflected in a complicated manner, and the whole lens surface emits light uniformly. The light source is hard to see from the outside and a deep light emitting state can be obtained. Also, when cutting the lens surface, only the periphery of the light source is required, and the cost can be reduced accordingly. Further, the degree of freedom of the size and shape of the lens is increased, and the degree of freedom of the arrangement location including the type of light source and the inside and outside of the lens is also increased. Furthermore, if a partition plate provided with a transparent plating film is provided in the lens, the light can be more evenly dispersed, and a certain degree of directivity can be given to the dispersion range depending on the angle of the partition plate. .

[0007]

2 to 6 show the appearance of an electric motorcycle to which this embodiment is applied. FIG. 2 is a left side view, FIG. 3 is a left perspective view, FIG. 4 is a right perspective view, and FIG. Is a plan view and FIG. 6 is a front view.

In these figures, a front wheel 2 is connected to a central frame 1 via front arms 3a and 3b, and a rear wheel 4 is connected to a rear arm 5.

The frame 1 supports a battery 6 such as a nickel-cadmium battery, a fuel cell 7, and a hydrogen storage chamber 8 made of a hydrogen storage alloy. The fuel cell 7 and the hydrogen storage chamber 8 are covered by a front cowl 9.

An outside air inlet 1 is provided at the front of the front cowl 9.
0 opens and communicates with the outside air introduction passage that is a space inside the front cowl 9. A slope portion 11 is formed in the outside air introduction path behind the outside air introduction port 10 and communicates with the duct 13 via a louver 12 provided here. The outside air inlet 10 is a relatively large opening that opens forward or downward, and the downward portion is directed upward of the front wheel 2.

The duct 13 guides the outside air in the outside air introduction passage to the fuel cell 7, where it reacts with hydrogen from the hydrogen storage chamber 8 to supply electric power to the motor 14 of the rear arm 5 and part of it to the battery 6. store.

The heat generated by the fuel cell 7 is released into the atmosphere by the heat radiation fins 15 provided at the rear of the fuel cell 7, and the water is discharged below the vehicle body by the hose 16.

In FIG. 2, reference numeral 17 is a screen, 18 is a handle, 19 is a seat, 20 is a lower cover, and 21 is a stand storage cover. When you open the stand storage cover,
The internal side stand can be pulled out, and at the same time, the power outlet 22 for charging the battery 6 and the charging port 23 for filling the hydrogen storage chamber 8 with hydrogen are exposed.

Further, 24 is a step, and FC is a front cushion. The rear cushion is the rear arm 5.
It is provided at an appropriate position such as inside the.

Further, as the lights, the front cowl 9
A headlight 25 provided at the front of the vehicle, a front blinker 26, a deceleration indicator light 27 provided at the rear of the rear arm 5, and a tail lamp 29 provided at the rear of the rear cowl 28 are provided.

The ring-shaped rim 30 of the front wheel 2 and the disc 31 inside thereof are connected by a coupling 32, and an axle 33
It is freely rotatable around. The thrust bearing 35 provided on the wheel cover 34 supports the rim 30 in the thrust direction.

A portion of the wheel cover 34 near the axle 33 has a sloping rectifying surface 36 for directing the traveling wind from below toward the outside air inlet 10.

Further, upper portions 37 integrally extending upward from the rectifying surface 36 are formed on the left and right side surfaces of the front wheel 2, and are respectively connected by a front fender 38 having high rigidity, and the front fender 38 functions as a stabilizer of the wheel cover 34. is doing. The portion of the wheel cover 34, which is located between the front arm 3a and the front arm 3b, behind the axle 33 is a spoiler 39.

The structure of the rear wheel 4 is similar to that of the front wheel 2, and
Is a rim, 41 is a disc, 42 is a coupling, 43 is an axle,
44 is a wheel cover, 45 is a thrust bearing, 4
6 and 47 are spoilers.

As is apparent from FIGS. 5 and 6, the handle 18 is formed by pressing a flat bar alloy core material integrally with a carbon fiber reinforced resin and integrally forming it with a polycarbonate screen 17. It is designed to be integrated and improved in aerodynamic characteristics.

The screen 17 is not integrated with the front cowl 9 and can be adjusted up and down by moving the handle boss shaft 50 (FIG. 5) up and down to adjust the riding position. Further, when the screen 17 is raised, a gap is formed between the screen 17 and the upper end of the front cowl 9, and the traveling wind can be introduced mainly around the occupant at low speed through the gap.

A pressure switch 5 is provided on one grip 51.
2 and the brake primary switch 53 are provided, and the pressure provided by the pressure sensitive switch 52 and the brake primary switch 53 can be applied to the front wheels 2 and the rear wheels 4 without operating the brake pedal.

A volume switch type throttle switch (not shown) is provided on one side of the handle 18. By operating this, a throttle signal corresponding to the operation amount of the throttle switch is used for controlling the drive of the motor 14. By inputting to the controller, the rotation of the motor 14 is changed to accelerate / decelerate.

FIG. 7 is an enlarged view of the tail lamp 29 portion, and FIG. 1 is a sectional view taken along line AA of FIG.

As is apparent from these figures, the tail lamp 29 is provided with a lens 60 having a substantially triangular shape in a plan view, and the lens 60 is formed as a hollow body and has a top portion 61, a side surface 62, a bottom portion 63, and a rear surface 64. And a front surface 65. The front and rear are based on the traveling direction.

Below the bottom portion 63, a discharge tube 66 which is long in the front-rear direction is provided. The long discharge tube 66 is used as a long continuous light source. However, the light source may be a point light source 67 such as a bulb, and both light sources are shown in FIG.

As shown in FIG.
A transparent plating film 68 is applied to the inner surface of the side surface 62. The transparent plating film 68 is applied to the entire inner surfaces of the left and right side surfaces 62 and the rear surface 64 and the front surface 65.

However, the inner surface of the top portion 61 is a mirror surface, and the inner surface of the bottom portion 63 is a cut surface (see FIG. 8). The transparent plating film 68 has a property of reflecting a part of light and transmitting a part of the light.

The long discharge tube 66 is longer than the lens 60,
The front end side extends forward of the front face 65, and a plurality of reflectors 70, 71, 72 are provided surrounding the extended end. Each of the reflectors 70, 71, 72 has an angle at which the reflected light is directed inside the lens 60.

In this way, the light that has passed through the bottom portion 63 from the long discharge tube 66 or the point light source 67 and enters the lens 60 has the transparent plating films 68 on the top portion 61, the side surface 62, the rear surface 64, and the front surface 65. Causes one part to be transmitted and the other part to be reflected.

The reflected light is partially reflected and partially transmitted. Further, the light reflected by the reflectors 70, 71, 72 behaves similarly in the lens 60.

Since only the reflector 72 is provided with the transparent plating film 68, a part of the reflector 72 is transmitted and reflected by the reflector 71. In this way, the light finally emitted from the lens 60 is refracted and reflected in a complicated manner, so that almost the entire lens 60 emits light uniformly.

In addition, the shapes of the long discharge tube 66 and the point light source 67 are difficult to see, resulting in a deep emission state. In addition, the long discharge tube 66 or the point light source 67 is connected to the lens 60.
Since the lens 60 can be made to emit light regardless of whether it is located inside or outside, the degree of freedom in the shape and size of the lens 60, the type and arrangement of the light source, and the like are significantly increased.

FIG. 8 is another embodiment and shows a cross section of a portion corresponding to the line CC in FIG. In this example, the lens 60
A plurality of partition plates 73 that partition the inside in the width direction are provided in the front-rear direction, and are arranged parallel to each other and inclined rearward.

Each partition plate 73 is formed integrally with the lens 60, and as shown in the enlarged portion D, a transparent plating film 68 is applied to the surface thereof. However, each partition plate 73 is a lens 6
It may be provided separately from 0.

As shown in the enlarged portion E, the inner surface of the top portion 61 forms a mirror surface 74, and as shown in the enlarged portion F, the inner surface of the bottom portion 63 is a cut surface 75.

The other points are the same as in the previous embodiment, and the light source, for example, a point light source 67 is arranged below the bottom portion 63 as in the previous embodiment.

In this way, the point light source 67 is connected to the bottom 6
The light that has passed through 3 and enters the lens 60 is reflected by the top 61 and the side surface 62, the rear surface 64, the front surface 65, and the partition plate 7.
Through the transmission and reflection at 3, the side surface 62 and the rear surface 64 of the lens 60 are uniformly made to emit light. This point is the same as before, but in this embodiment, the light is more evenly dispersed. In addition, the presence of the plurality of partition plates 73 that are inclined forward and parallel to each other increases the amount of light directed to the rear surface 64 and increases the amount of light toward the rear, so that the range of dispersion and the distribution of the amount of light have directivity. It can be given and is optimized as the tail lamp 29.

FIG. 9 shows another embodiment, which shows a cross section similar to that of FIG. 1, in which a grid-like partition plate 76 is provided inside the lens 60 and is shown in the enlarged portion G. Further, the permeable plating film 68 is formed on the inner surface in the front-rear direction of each partition plate 76.
It is characterized in that it is given. In addition, applying the transparent plating film 68 to the inner surface of the side surface 62 is the same as before (enlarged portion H).

In this way, the reflection and refraction of light can be further complicated, so that more uniform light emission can be obtained.

FIG. 10 shows an embodiment applied to the front blinker 26 (see FIG. 1). In this embodiment, a lens 80 is fitted in a corner portion formed by the inner cowl 10a that bends inwardly of the vehicle body at a part of the front cowl 9 and the tip of the front cowl 9, and the inner surface of the lens 80 is the same as before. A transparent plating film 68 is applied.

The valve 81 is provided at a position retracted toward the inner cowl 10a, and a main body reflector 82 is provided so as to surround the rear of the valve 81.

The inner surface of the main body reflector 82 is the mirror surface 8
It is 3. Further, a semi-transparent reflector 84 having a substantially U-shaped cross section is provided in front of the main body reflector 82.

The semi-transparent reflector 84 is made of a base made of a transparent material and has a transparent plating film 68 applied to the inner surface thereof, and surrounds the bulb 81.

With this structure, part of the light from the bulb 81 is transmitted through the semi-transmissive reflector 84 and reflected by the mirror surface 83 of the main body reflector 82, or is directly reflected by the lens 8
The lens 80 is caused to emit light uniformly through various paths such as toward the 0 direction.

At this time, if the semi-transmissive reflector 84 does not exist, the presence of the step 85 of the inner cowl 10a causes a portion 86 where the light quantity is weakened only by the reflected light from the side of the mirror surface 83. Sex reflector 84
As a result, the amount of light in this portion can be increased, so that such a portion can be eliminated and the entire generation can be made uniform.

[Brief description of drawings]

FIG. 1A of FIG. 7 according to an embodiment applied to a tail lamp.
-A line sectional view

FIG. 2 is a left side view of the motorcycle to which the embodiment is applied.

FIG. 3 is a perspective view showing the above left rear view.

FIG. 4 is a perspective view showing the above right rear view.

FIG. 5 is a schematic plan view of the above.

FIG. 6 is a front view of the above.

FIG. 7 is a side view of the essential part of the embodiment.

8 is a sectional view corresponding to line BB of FIG. 1 according to another embodiment.

FIG. 9 is a sectional view of a portion corresponding to FIG. 1 according to still another embodiment.

FIG. 10 is a sectional view of another embodiment applied to a winker light.

[Explanation of symbols]

26: Front blinker, 29: Tail light, 60:
Lens, 66: discharge tube, 67: point light source, 68: transparent plating film, 73: partition plate, 74: mirror surface, 75: cut surface, 76: partition plate, 82: body reflector, 83: mirror surface, 85 : Step

Claims (2)

[Claims] 1. A lighting device for a vehicle, comprising a light source and a lens, wherein a transparent plating film is formed on an inner surface of a lens surface through which light of the light source transmits. 2. The lighting device for a vehicle according to claim 1, wherein a partition plate provided with a transparent plating film is provided in the lens.