JPH10302509A - Lighting system structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make luminescent light normal brightness and prevent uneven light emission in the bent part of a lens by thinning the bent part, facing an outer lens surface, of an inner lens than its surrounding. SOLUTION: Light R reached the angle part 71j of an inner lens 71f from a bulb of a rear turn signal lamp passes through a thin part 71k, an air layer, and an outer lens 71e. By passing of the light R though the thin part 71k, since green color is made thinner than the light passed through the normal thick part of the surroundings, the light of luminescent light R1 after passing through an outer lens 71e is made thinner than normal orange color. Since the light R advances within the inner lens 71f while it repeats reflections, the advancing path within the inner lens 71f of the light R is lengthened, the color of light R2 after passing through the outer lens 71e is made thicker than the normal orange color. By coupling the light R1 with the light R2, the generation of uneven light emission is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle lighting device structure.

[0002]

2. Description of the Related Art As a vehicular lighting device, for example, Japanese Unexamined Utility Model Publication No. 7-14503, "Tail Lamp for Automobile" is known. The above technique relates to a tail lamp capable of obtaining high brightness by using both direct light emitted from a lamp and reflected light reflected by a reflecting mirror, and is shown in FIG. 2 of the publication. As shown in the figure, a tail lamp 1 provided at a rear portion of a vehicle body 2 has an outer lens 5 formed to match the surface of the vehicle body 2 so as to cover the tail lamp 1, and an inner lens 10 provided inside the outer lens 5 at a distance. And

[0003]

In recent years, in response to a demand for improving the appearance of a vehicle, a combination of an outer lens and an inner lens has been used to improve the color of a lens such as a stop lamp and a turn signal lamp of a rear combination lamp. It has also been considered to make the colors similar to each other, but in the case of a combination of colored and differently colored lenses, there is a problem that the light emitted from the inner lens tends to cause color unevenness of the outer lens. Was. On the other hand, in order to improve the usability of the vehicle, for example, it is desired to increase the volume of the luggage compartment, and it is also necessary to reduce the size of the lighting device such as reducing the distance between the outer lens 5 and the inner lens 10 shown in the above-mentioned conventional technology. It has become. SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicular lighting device structure that prevents light emission unevenness and reduces the size.

[0004]

In order to achieve the above object, a first aspect of the present invention is to provide a lighting device in which a front surface of a bulb is covered with an inner lens and an outer lens, the lamp facing the outer lens surface of the inner lens. The bent portion was made thinner than the surrounding thickness. Light passing through the thin portion of the inner lens becomes light light of a light color, and is refracted from the other parts of the lens and dark light emitted from the bent portion becomes light light of normal density, and the lens It is possible to prevent uneven light emission at the bent portion of the light emitting device.

According to a second aspect of the present invention, a convex or concave curved surface is formed at an end bent portion in a portion corresponding to the outer lens surface of the inner lens. Light that has traveled inside the inner lens is diffused on the convex or concave curved surface of the end bent portion of the inner lens,
The end of the inner lens does not become dark, and uneven light emission at the end of the lens can be prevented.

According to a third aspect of the present invention, the inner lens and the outer lens are provided close to each other in substantially the same shape. If the clearance between the inner lens and the outer lens is reduced, the light that has exited the inner lens is less likely to diffuse, and the light is concentrated on the outer lens, which tends to cause uneven light emission. Also, if the clearance between the inner lens and the outer lens is made larger than usual, the area of the part where the inner lens shines and the part where the outer lens shines out of the light of the part that goes straight through the inner lens and the outer lens from the bulb and looks bright. Due to the difference, the light emission was doubled and appeared as uneven light emission. Normally, the medium of the above two uneven light emission was adopted. However, because of the configuration as described in the first and second aspects, uneven light emission hardly occurs even if the clearance is reduced. Therefore, the uneven light emission can be achieved by bringing the inner lens and the outer lens close to each other. It is possible to reduce the size of the lighting device while preventing the occurrence of light.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a side view of a scooter type vehicle according to the present invention. A scooter type vehicle 1 (hereinafter referred to as "scooter 1") includes a cradle type body frame 2, a front fork 4 attached to a head pipe 3 of the body frame 2, a front wheel 5 attached to the front fork 4, and The vehicle includes a front fender 6, a handle 7 connected to the front fork 4, a fuel tank 8, a radiator reserve tank 9, and a radiator 10 arranged in a cradle space surrounded by each pipe of the body frame 2.

The scooter 1 includes a power unit 12 disposed behind the cradle space and having a water-cooled engine 11 at the front, a link mechanism 13 for attaching the front of the power unit 12 to the vehicle body frame 2, and a power unit 12. Cushion 14 for suspending the rear end of the vehicle body frame 2, a rear wheel 15 attached to the rear of the power unit 12, a seat 16 disposed above the rear of the vehicle body frame 2, and a body cover 17 for covering the vehicle body frame 2 Consists of

The body cover 17 includes a front cover 21 that covers a front portion of the head pipe 3 and an upper portion of the front wheel 5, an inner cover 22 that covers a rear portion of the front cover 21,
Left and right step floors 23 (only the near side is shown in this figure; the same applies hereinafter) as low floor type footrests on which the driver's feet are placed, and left and right floor skirts extending downward from the outer edges of these step floors 23 24, and an undercover 25 covering the lower edge of the floor skirt 24.

A body cover 17 extends rearward from the inner cover 22 to cover the longitudinal center of the body frame 2, a side cover 27 extends rearward from the center cover 26 and covers both rear side surfaces of the body frame 2. Left and right lower side covers 28 extending downward from the outer edges of the side covers 27, a rear center cover 29 that covers the lower rear end of the body frame 2 behind the lower side covers 28, and an upper part of the rear center cover 29. And a rear upper cover 30 that covers the upper rear end of the body frame 2.

The handle 7 includes a handle cover 33 that covers the handle 7 and a handle 7 above the front cover 21.
And a screen garnish 35 as a cover member provided at a lower portion of the front surface of the wind screen 34. The inner cover 22 includes leg shields 22a on both sides to cover the front of the driver's legs.

In the drawing, 41 is a headlamp, 42 is a blinker, 43 is a refueling lid, 44 is a lid for checking a spark plug, 45 is a main stand, 46 is an air cleaner which is an air cleaner device, 47 is a rear grip, and 49 is a rear fender. , 70 are rear combination lamps.

FIG. 2 is a side view showing a lighting device mounting structure for the rear part of the vehicle body according to the present invention. A storage box 50 comprising an upper half part 51 and a lower half part 52 is mounted on the upper part of the rear part of the vehicle body frame 2. A state in which a rear combination lamp 70 as a lighting device is attached to a rear wall of the half portion 51 is shown.

The upper half portion 51 includes an upper edge portion 53 inclined forward on which the seat 16 is placed, and a rear extension portion 54 extending rearward from the vehicle body frame 2 and extending downward. The lower half portion 52 includes a bulging portion 55 bulging downward from the vehicle body frame 2 and a plate-like portion 56 for closing the lower end of the rear extension portion 54 of the upper half portion 51.

The bulge 55 of the upper half 51 and the lower half 52
Means that the main storage portion 57 of the storage box 50 is formed, and a large one such as a full-face type helmet is stored in the main storage portion 57. The rear extension 54 of the upper half 51 and the plate-like portion 56 of the lower half 52 are connected to the storage box 5.
0 extends rearward from the vehicle body frame 2 and forms a rear storage portion 58 that bulges downward. The rear storage portion 58 stores a relatively small helmet, small articles, and the like.

As described above, the storage box 50 extends rearward from the vehicle body frame 2 and bulges downward, and the rear combination lamp 70 is attached to the rear outer wall 54a of the storage box 50. The total length can be reduced, the weight of the body frame 2 can be reduced, and the vibration transmitted from the body frame 2 can be reduced by attaching the rear combination lamp 70 to the body frame 2 via the storage box 50. it can.

FIG. 3 is an enlarged side view of the main part of the rear part of the vehicle body according to the present invention, wherein bolts B1.
Indicates a plurality. The same applies hereinafter. ), A portal stay 91 is attached, and a rear upper cover 30 as a rear rear cover is mounted on the upper portion of the portal stay 91 with bolts B2.
7 (see FIG. 1) and the rear grip 47, indicating that the lower portion of the rear upper cover 30 has been locked to the locking portion 70a (see FIG. 4) of the rear combination lamp 70.

FIG. 4 is a rear view of the vehicle body according to the present invention.
Only the cross section of the rear upper cover at the position where it is attached to the portal stay is shown. The rear combination lamp 70 has a U-shape when viewed from the rear, has a rear upper cover 30 (see FIG. 3) mounted inside the U-shape, and includes a locking portion 70a of the rear upper cover 30.
Rear turn signal lamps 71 and 72 are arranged at the upper left and right sides, and a tail lamp 73 serving as a horizontally long stop lamp is arranged at a lower part.

Here, reference numerals 71a and 72a denote rear turn signal lamp bulbs, 73a and 73a denote tail lamp / stop lamp bulbs, and 74 and 74 denote rear center covers 29 provided below the rear combination lamps 30.
A mounting lamp 75 (see FIG. 1) illuminates the lower side.

As described above, by providing the locking portion 70a of the rear upper cover 30 inside the U-shape of the rear combination lamp 70, the rear upper cover 30 can be easily attached to the rear combination lamp 70, and The appearance of the combination lamp 70 and the rear upper cover 30 can be easily adjusted.

FIG. 5 is a perspective view showing the mounting relationship of the rear combination lamp to the rear part of the vehicle body according to the present invention. The upper half 51 of the storage box 50 is mounted on the rear outer wall 54a as the mounting position of the rear combination lamp 70. Central plane part 6
1, left plane part 62, right plane part 63, side wall 54b, 54
b (one side is omitted), a left overhang portion 64, a right overhang portion 65,
Support portions 66 and 66 are provided behind the rear outer wall 54.

The center plane portion 61 has a center hole 61a, the left plane portion 62 has an upper left hole 62a and a lower left hole 62b, the right plane portion 63 has an upper right hole 63a and a lower right hole 63b, and the left overhang portion 64 has The left vertical hole 64a and the right overhang portion 65 are the right vertical hole 65.
a.

The rear combination lamp 70
The central projection 76, the upper left projection 77, the lower left projection 78, the upper right projection 81, the lower right projection 82, the left front projection 83, the right front projection 84, and the box-shaped (See FIG. 3; one side is omitted).

The center projecting portion 76, the upper left projecting portion 77, the lower left projecting portion 78, the upper right projecting portion 81, the lower right projecting portion 82, the left front projecting portion 83, and the right front projecting portion 84 are respectively provided with mounting holes 76.
a, 77a, 78a, 81a, 82a, 83a, 84a
Having.

When the rear combination lamp 70 is to be mounted on the upper half 51 of the storage box 50, a clip nut N is fitted into a square hole 61b previously formed in the upper part of the central flat part 61, and the left flat part 62 and the right flat part The nut portion of the stay S with a nut is inserted from the rear surface side of each
And the lower left hole 62b, the upper right hole 63a and the lower right hole 63b, the mounting hole 76a in the central hole 61a, the mounting hole 77a in the upper left hole 62a, and the mounting hole 78 in the lower left hole 62b.
a, mounting hole 81a in upper right hole 63a, mounting hole 82a in lower right hole 63b, mounting hole 83a in left vertical hole 64a, right vertical hole 6
The mounting holes 84a are respectively aligned with 5a and fixed with screws.

The supported portions 85 (see FIG. 3; one side is omitted) are engaged with the supporting portions 66 of the storage box 50. The rear extension 54 of the storage box 50 has a sufficient rigidity because it is a kind of structure, and can mount a large and heavy rear combination lamp.

FIG. 6 is a plan view of the rear combination lamp according to the present invention, in which a locking portion 70a for locking the rear upper cover 30 (see FIG. 3) includes standing walls 70b.
And a claw 70c, and an upright wall 70b and a claw 70c.
, And the rear part of the rear upper cover 30 is inserted. Since the rear turn signal lamps 71 and 72 of the rear combination lamp 70 are wrapped around from the rear to the side and are arranged at the upper part of the rear part of the vehicle body, visibility is good from the rear and side.

FIG. 7 is a sectional view taken along line 7-7 of FIG. 4. The rear turn signal lamp 71 includes a base 71c integrally formed with a reflector 71b, a socket 71d attached to the base 71c, and a socket 71d. Valve 7 mounted on
1a and an outer lens 71 which is an outer lens covering the outer side
e, and an inner lens 71f, which is an inner lens disposed at a slight distance inside the outer lens 71e. In addition, 71g, 71g, and 71h are sealing members. When the maximum distance (clearance) between the outer lens 71e and the inner lens 71f is L, and the thickness of the inner lens 71f is T, there is a relationship of 0 <L ≦ T.

The outer lens 71e has a surface smoothly connected to the surface of the lens 73b for the tail lamp 73 (see FIG. 6) to obtain a sense of unity with the rear combination lamp 70 (see FIG. 6), and is the same as the lens 73b. It is colored red.

The inner lens 71f is colored green, and when lit, the color of the light passing through the inner lens 71f and the outer lens 71e is changed to orange (JI
SD 5500). The rear turn signal lamp 72 (see FIG. 6) has the same configuration as that of the rear turn signal lamp 71 (however, the right and left sides are different), and a description thereof will be omitted.

As described above, in the rear combination lamp 70, the colors of the outer lenses of the rear turn signal lamps 71 and 72 and the lens 73b for the tail lamp 73 are unified to a red color, and the rear turn signal lamps 71 and 7 are unified.
By providing a green inner lens in 2, the entire color of the rear combination lamp 70 can be made to be red when non-lighting, and the appearance of the rear combination lamp 70 can be improved.

The inner lens 71f has a thin portion 71k at a corner 71j which is a bent portion within a range contributing to lighting. The thin portion 71k is a corner portion 71j of the inner lens 71f.
Is formed by notching the outer surface side of. The inner lens 71f has an end 7 within a range contributing to the lamp.
1 m has a concave curved surface 71n.

The operation of the inner lens 71f described above will now be described. FIG. 8 is an enlarged sectional view of a main part showing the action of the corner of the inner lens according to the present invention. Rear turn signal lamp 71 (see FIG. 7) bulb 71a (see FIG. 7)
R reaching the corner 71j of the inner lens 71f from the
Passes through the thin portion 71k, the air layer A, and the outer lens 71e. The light after passing through the outer lens 71e is defined as R1. At this time, the light R passes through the thin portion 71k,
The color of the lamp light R1 after passing through the outer lens 71e is lighter than the regular orange color because green is lighter than light that has passed through the surrounding regular thick portion.

The light R reaching the upper surface portion 71p of the inner lens 71f from the bulb 71a of the rear turn signal lamp 71 repeatedly reflects inside the inner lens 71f, travels through the thin portion 71k at the corner portion 71j, and passes through the air. The light passes through the layer A and the outer lens 71e. The light after passing through the outer lens 71e is R2.

At this time, since the light R repeatedly reflects inside the inner lens 71f and travels, the traveling path of the light R in the inner lens 71f becomes longer and the green color gradually becomes darker, so that the lamp light after passing through the outer lens 71e. The color of R2 is darker than the regular orange color. As described above, by combining the light orange light R1 and the dark orange light R2, the light at the corners of the rear turn signal lamps 71 and 72 can be made a regular orange light, and the darkness with the surroundings can be obtained. Since there is no difference in light emission, uneven light emission does not occur.

FIGS. 9A and 9B are enlarged sectional views showing the operation of the end of the inner lens according to the present invention.
(A) shows another embodiment of the end of FIG. 7, and (b) shows another embodiment of the end of FIG. In (a), the light R (uppermost) reaching the inner lens 71f from the bulb 71a (see FIG. 7) of the rear turn signal lamp 71 (see FIG. 7) is reflected in the inner lens 71f, and is reflected on the curved surface 71n. Then, the light is reflected again by the curved surface 71n, passes through the inner lens 71f, and passes through the air layer A and the outer lens 71e. The light after passing through the outer lens 71e is R3.

Similarly, another light R, R is reflected in the inner lens 71f, reaches the curved surface 71n, is reflected again by the curved surface 71n and passes through the inner lens 71f,
It passes through the air layer A and the outer lens 71e. The lights after passing through the outer lens 71e are R4 and R5.

These lamp lights R3, R4 and R5 are lights traveling in different directions. Therefore, by providing the curved surface 71n, the light collected at the end 71m can be diffused, and the rear turn signal lamps 71, 72 (FIG. 6)
(See FIG. 2) can be prevented.

In (b), the inner lens 71f
Has a convex curved surface 71q at an end 71m within a range contributing to the lamp. Rear turn signal lamp 71 (FIG. 7)
7) (see FIG. 7) to the inner lens 7
The light R (uppermost) reaching 1f is the inner lens 71
f, and reaches the curved surface 71q.
Is reflected again, passes through the inner lens 71f, and is
And the outer lens 71e. Outer lens 71
The light after passing e is R6.

Similarly, another light R, R is reflected in the inner lens 71f, reaches the curved surface 71q, is reflected again by the curved surface 71q, and passes through the inner lens 71f.
It passes through the air layer A and the outer lens 71e. The light after passing through the outer lens 71e is R7, R8.

These lamp lights R6, R7, R8 are lights traveling in different directions. Therefore, by providing the curved surface 71q, it is possible to diffuse the light collected at the end 71m, and the rear turn signal lamps 71 and 72 (FIG. 6).
(See FIG. 2) can be prevented.

As described above, the rear turn signal lamps 71 and 72 are formed by the thin wall 71k of the corner 71j shown in FIG. 8 and the curved surface of the end 71m shown in FIGS. 9A and 9B. 7, even if the maximum distance L between the outer lens 71 e and the inner lens 71 f is reduced in FIG.
By bringing the inner lens 71f and the outer lens 71e close to each other, it is possible to reduce the size of the rear turn signal lamps 71 and 72 while preventing uneven light emission.

FIG. 10 is a sectional view showing a comparative example of an inner lens for a rear turn signal lamp. A rear turn signal lamp 100 includes a socket 102 integrally formed with a reflector 101, a bulb 103 attached to the socket 102, Lens mounting portions 104 and 105 provided outside the reflector 101;
The outer lens 106 includes a red outer lens 106 attached to the outer lens 4 and a green inner lens 107 disposed inside the outer lens 106 at a slight distance. The inner lens 107 has a corner 108 and an end 109.

The operation of the above-described inner lens 107 will now be described. 11 (a) and 11 (b) are enlarged cross-sectional views of main parts of FIG. 10, (a) is a portion C of FIG. 10, and (b) is FIG.
The D portion of 0 is enlarged. (A), the bulb 1 of the rear turn signal lamp 100 (see FIG. 10);
03 (see FIG. 10) is transmitted to the corner 108 of the inner lens 107, the air layer A, and the outer lens 10
Go through 6. The light after passing through the outer lens 106 is R
101.

The light R that has reached the upper surface 111 of the inner lens 107 from the bulb 103 of the rear turn signal lamp 100 repeatedly reflects inside the inner lens 107 and travels there.
And passes through the outer lens 106. The light after passing through the outer lens 106 is denoted by R102.

At this time, since the light R is repeatedly reflected in the inner lens 107 and travels, the traveling path of the light R in the inner lens 107 becomes longer and the green color gradually becomes darker. The color of R102 is darker than the regular orange color. Therefore, the lamp R101 and the lamp R
By combining with 102, the light at the corner 108 of the rear turn signal lamp 100 becomes orange, which is more greenish than the normal orange light, and appears as uneven light emission to the surroundings.

In (b), the bulb 103 (see FIG. 10) of the rear turn signal lamp 100 (see FIG. 10)
R reaching the inner lens 107 from above (uppermost)
Is reflected in the inner lens 107, reaches the flat portion 112, is reflected again by the flat portion 112, and
7 and passes through the air layer A and the outer lens 106. The light after passing through the outer lens 106 is denoted by R103.

Similarly, another light R, R is reflected in the inner lens 107, reaches the flat portion 112, is reflected again by the flat portion 112, passes through the inner lens 107, and
It passes through the air layer A and the outer lens 106. The lights after passing through the outer lens 106 are denoted by R104 and R105.

These lamp lights R103, R104, R10
Numeral 5 is light traveling in the same direction. Therefore, the flat portion 1
The light collected at the end portion 109 is reflected in the same direction by the provision of the
09 light is greenish orange than normal light,
Appears as uneven light emission to the surroundings.

When the maximum distance L between the outer lens 106 and the inner lens 107 shown in FIG. 10 is reduced, the light that has exited the inner lens 107 is less likely to be diffused.
At 06, the light is concentrated, and uneven light emission is likely to occur.
If the maximum distance L between the outer lens 106 and the inner lens 107 is made larger than usual, the portion where the inner lens 107 shines and the outer lens 106 out of the portion of the portion of the light which appears to go straight through the inner lens 107 and the outer lens 106 from the bulb 103 are bright. There is a difference in area from the part where the light flashes, and the light emission becomes doubled and appears as uneven light emission.
The medium of the above two light emission irregularities has been adopted. As described above, the embodiment shown in FIG. 7 is implemented in the rear combination lamp 70 in order to prevent light emission unevenness occurring at the corners and ends of the lens shown in FIG. is there.

In the present invention, as shown in FIG. 8, the thin portion 71j is formed by notching the outer surface. However, the present invention is not limited to this, and the thin portion may be formed by notching the inner surface in a round shape. Good.

[0052]

According to the present invention, the following effects are exhibited by the above configuration. In the vehicle lighting device structure according to the first aspect, the bent portion facing the outer lens surface of the inner lens is made thinner than the surrounding thickness, so that light passing through the thinner portion of the inner lens is a light of a light color. The light becomes light, and the dark color light emitted from the bent portion is refracted from the other part of the lens to form a light beam of normal darkness, thereby preventing uneven light emission at the bent portion of the lens.

In the vehicle lighting device structure according to the second aspect, since the convex or concave curved surface is formed in the bent portion at the end corresponding to the outer lens surface of the inner lens, the vehicle light travels inside the inner lens. The light is diffused on the convex or concave curved surface of the bent portion at the end of the inner lens, so that the end of the inner lens does not have a dark color, and uneven light emission at the end of the lens can be prevented.

In the vehicle lighting device structure according to the third aspect, since the inner lens and the outer lens are provided close to each other in substantially the same shape, the curved surface of the bent portion and the bent portion at the end portion is provided. Therefore, even if the clearance between the inner lens and the outer lens is reduced, uneven light emission hardly occurs.
The lighting device can be miniaturized while preventing uneven light emission.

[Brief description of the drawings]

FIG. 1 is a side view of a scooter type vehicle according to the present invention.

FIG. 2 is a side view showing a lighting device mounting structure at the rear of the vehicle body according to the present invention.

FIG. 3 is an enlarged side view of a main part of a rear portion of the vehicle body according to the present invention.

FIG. 4 is a rear view of the vehicle body according to the present invention.

FIG. 5 is a perspective view showing a mounting relationship of a rear combination lamp to a rear portion of a vehicle body according to the present invention.

FIG. 6 is a plan view of a rear combination lamp according to the present invention.

FIG. 7 is a sectional view taken along line 7-7 of FIG. 4;

FIG. 8 is an enlarged sectional view of a main part showing the action of a corner of the inner lens according to the present invention.

FIG. 9 is an enlarged sectional view of a main part showing the operation of the end of the inner lens according to the present invention.

FIG. 10 is a sectional view showing a comparative example of an inner lens for a rear turn signal lamp.

11 is an enlarged sectional view of a main part of FIG. 10;

[Explanation of symbols]

1. Vehicle (scooter type vehicle), 70, 71, 72 ... Lighting equipment (rear combination lamp, rear turn signal lamp, rear turn signal lamp), 71a, 72a
... Bulb, 71e ... Outer lens (outer lens), 71
f: inner lens (inner lens), 71j: bent portion (corner), 71k: thin portion, 71m: end portion, 71n, 7
1q: curved surface, A: air layer.

Claims (3)

[Claims] 1. A lighting device in which a front surface of a bulb is covered with an inner lens and an outer lens, wherein a bent portion of the inner lens facing the outer lens surface is thinner than a surrounding wall thickness. Vehicle lighting device structure. 2. The vehicle lighting device structure according to claim 1, wherein a convex or concave curved surface is formed at an end bent portion in a portion corresponding to the outer lens surface of the inner lens. . 3. The vehicle lighting device structure according to claim 1, wherein the inner lens and the outer lens are provided to be close to each other in substantially the same shape.