JP2019077333A - Vehicle lighting member - Google Patents

Abstract

To provide a vehicle lighting member which enables multiple light emission expressions.SOLUTION: A vehicle lighting member 1 of the invention has: a rear side light emission part 2 having first light source parts 20 and a light permeable member 23 disposed in front of the first light source parts 20 and having light permeability; a front side light emission part 3 having second light source parts 30 and a housing member 32 which houses the second light source parts 30 and disposed at the front side of the light permeable member 23; and a skin member 4 disposed at the front side of the front side light emission part 3 and having light permeability.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle lighting member, and more particularly to a vehicle lighting member capable of different light emission expressions.

  In recent years, it has been studied on a vehicle to perform display for making a person outside the vehicle recognize the vehicle state with a lighting device (also referred to as a light emission sign). Such a light emission sign is formed to emit light to the outside of the vehicle. Specifically, the light emission sign is configured to include a light source such as a light bulb or an LED, and a light transmissive cover (or a lens) disposed in front of the light source. Furthermore, multiple light sources, such as a light bulb and LED, are arranged, and visibility is improved.

However, there is a problem that the conventional light emission sign is limited to display (or light emission expression) in the range surrounded by the light transmissive cover. In addition, the light emission expression is also limited to a single expression of only light emitted from the light source.
This invention is made in view of the said situation, and makes it a subject to provide the illumination member for vehicles which can carry out multiple luminous expression.

A vehicular illumination member according to the present invention for solving the above-mentioned problems includes a rear light emitting portion having a first light source portion emitting light forward and a light transmitting member having a light transmitting property disposed in front of the first light source portion. And a front light emitting unit disposed on the front side of the light transmitting member, the light emitting unit including a second light source unit emitting light forward and a housing member for housing the second light source unit; And a skin member having a light transmission property.
The vehicle illumination member of the present invention has two light emitting parts, a rear side light emitting part and a front side light emitting part. According to this configuration, by separately emitting light from the two light emitting units, a vehicle lighting member capable of a plurality of light emission expressions can be obtained.
By enabling multiple light emission expressions, it is possible to perform different light emission expressions. Different meanings can be given to the light emission expressions of the plurality of light emitting units, and more information can be displayed for the personnel outside the vehicle.

1 is a perspective view showing a vehicle provided with a vehicle illumination member of Embodiment 1. FIG. It is sectional drawing in the II-II line in FIG. It is a sectional view showing the composition of the lighting member for vehicles of modification 1.

  Hereinafter, the lighting member for vehicles of the present invention is concretely explained using an embodiment. Note that the embodiment shows one form for specifically explaining the present invention, and the present invention is not limited to the embodiment.

Embodiment 1
The present embodiment is a vehicle lighting member 1 (hereinafter referred to as the lighting member 1) having the configuration shown in FIGS. The illumination member 1 of the present embodiment forms the outer surface of the side surface of the vehicle.
FIG. 1 is a front view showing the illumination member 1 in a state of being mounted on a vehicle. FIG. 2 is a cross-sectional view taken along line II-II in FIG.
As shown in FIG. 1, the illumination member 1 of the present embodiment is a member that forms the outer surface of the vehicle. The illumination member 1 of the present embodiment is provided on the side surface of the wheel of the vehicle.
The illumination member 1 of the present embodiment has a rear side light emitting unit 2, a front side light emitting unit 3, a skin member 4, and a control device 5 as shown in a cross sectional view in FIG. 2.

  The rear side light emitting unit 2 has a plurality of LEDs 20 (20A to 20D). The plurality of LEDs 20 (20A to 20D) are connected to the control device 5, and are turned on (dimmed) and turned off independently according to an instruction of the control device 5. The plurality of LEDs 20 (20A to 20D) emit light toward the front. The LED 20 corresponds to a first light source unit. Although LEDs are used in the present embodiment, light sources other than LEDs such as light bulbs may be used. In the present embodiment, the LED 20 may be either a single color or a modulable color light (changeable color tone). The LED 20 emits colored light of such an intensity that the emitted light can be visually recognized on the surface of the illumination member 1.

  The LED 20 is housed in the housing member 22 in a state of being fixed to the substrate 21. The substrate 21 includes a circuit for fixing the LED 20 and for flowing a predetermined power supplied to the LED 20. The housing member 22 is a member having a tank shape whose surface side facing the vehicle exterior is open. The housing member 22 houses and fixes the substrate 21 therein. That is, the housing member 22 fixes the position of the substrate 21 (and the LED 20). The substrate 21 and the housing member 22 can have a conventionally known configuration.

  In the present embodiment, as shown in FIG. 2, the plurality of LEDs 20 (20A to 20D) of the rear side light emitting unit 2 are not provided on the rear side of the front side light emitting unit 3. In other words, when projecting the front side light emission part 3, several LED20 (20A-20D) is provided in the position which does not overlap. In FIG. 2, four LEDs 20A to 20D are provided side by side on the substrate 21 in this order. And two LED20A, LED20B, LED20C, and LED20D are provided in the adjacent state. On the other hand, the LED 20B and the LED 20C are provided in a state of being separated by an interval (an interval wider than the width of the front side light emitting unit 3).

  The rear side light emitting unit 2 has a plate-like (sheet-like) diffusion member 23 on the front side (opening side of the tank-like shape) of the housing member 22. The diffusion member 23 is made of a light transmitting material and corresponds to a light transmitting member. The diffusion member 23 is made of a transparent or translucent member. In this embodiment, it is a plate-like (sheet-like) member in which light is diffused. In the present embodiment, the diffusion member 23 is formed of a foamed resin such as silicone or urethane.

  The diffusion member 23 covers the plurality of LEDs 20. In the diffusion member 23, a concave portion 24 capable of accommodating the front side light emitting portion 3 is formed on the surface 23 a side. The recessed portion 24 is formed in a bottomed state recessed from the surface 23 a of the diffusion member 23, but penetrates the diffusion member 23 in the thickness direction (that is, the back surface of the housing member 32 described later of the front light emitting unit 3). May be formed in the state facing the accommodation member 22).

  In the present embodiment, the front light emitting unit 3 is accommodated and provided in the recess 24 formed on the surface 23 a side of the diffusion member 23, but the present invention is not limited to this embodiment. That is, the front side light emitting unit 3 may be disposed in front of the diffusion member 23. In this case, the front side light emitting unit 3 is smaller than the diffusion member 23. That is, the light of the LED 20 is formed so as to be transmitted from the illumination member 1 to the outside of the vehicle through the diffusion member 23.

  The front side light emitting unit 3 has a plurality of LEDs 30 (30A to 30D). The plurality of LEDs 30 (30A to 30D) are connected to the control device 5, and are turned on (dimmed) and turned off independently according to an instruction of the control device 5. The plurality of LEDs 30 (30A to 30D) emit light toward the front. The LED 30 corresponds to a second light source unit. Although LEDs are used in the present embodiment, light sources other than LEDs such as light bulbs may be used. In the present embodiment, the LED 30 may be either a single color or a modulable color light (changeable color tone). The LED 30 emits colored light of such an intensity that the emitted light can be visually recognized on the surface of the illumination member 1.

The LED 30 is housed in the housing member 32 in a state of being fixed to the substrate 31. The substrate 31 has a circuit for fixing the LED 30 and for flowing predetermined power supplied to the LED 30. The housing member 32 is a member having a tank shape whose surface side facing the vehicle exterior is open. The accommodating member 32 accommodates and fixes the substrate 31 therein. That is, the housing member 32 fixes the position of the substrate 31 (and the LED 30). The substrate 31 and the housing member 32 do not have light transparency. That is, the substrate 31 and the housing member 32 shield the light emitted from the LED 20 of the rear side light emitting unit 2 disposed on the rear side thereof without transmitting the light (or restrict the transmission of the light). The substrate 31 and the housing member 32 can have a conventionally known configuration.
The skin member 4 is a sheet-like (plate-like) member disposed on the front surface side of the front side light emitting unit 3. The skin member 4 forms the surface of the illumination member 1 of the present embodiment. The skin member 4 is disposed to cover the front side light emitting unit 3 and the rear side light emitting unit 2.

The skin member 4 is made of a light transmissive material. The skin member 4 is made of a transparent or translucent member. In this embodiment, it is formed of a translucent sheet-like (plate-like) member. In the present embodiment, the skin member 4 is formed of a thin plate of a foamed resin such as silicone or urethane. The skin member 4 may be formed of a woven fabric or a non-woven fabric. Furthermore, a plurality of these may be stacked.
In the lighting device 1 of the present embodiment, the surface member 4 forms a surface from which light emitted to the outside of the vehicle is emitted. In the illuminating device 1 of this form, the outer surface of a vehicle is formed and it is preferable that it is excellent in touch.

  Further, in the lighting device 1 of the present embodiment, the surface member 4 forms the outer surface, and covers the front surface of at least a part of the entire surface of the rear side light emitting unit 2 and the front side light emitting unit 3. It is preferable that the front surface of at least a part of the front side light emitting portion 3 be covered, and it is more preferable that the entire front side surface of the front side light emitting portion 3 be covered; It is further preferable to cover the entire front surface of the side light emitting portion 2 and the front side light emitting portion 3).

The control device 5 is connected to the LEDs 30 and 20 of the front side light emitting unit 3 and the rear side light emitting unit 2. The control device 5 corresponds to a control unit. That is, the control device 5 controls turning on / off (light emission, light control) of the LEDs 20 (20A to 20C) of the rear side light emitting unit 2 and the LEDs 30 (30A to 30C) of the front side light emitting unit 3.
Then, the control device 5 controls the light emission of each of the LEDs 20 and 30 of the rear side light emitting unit 2 and the front side light emitting unit 3 based on an instruction from the vehicle occupant.

  In the illumination member 1, the arrangement of the LEDs 20 of the rear side light emitting unit 2 and the LEDs 30 of the front side light emitting unit 3 is not limited. In the illumination member 1 of the present embodiment, as shown in FIG. 1, the LEDs 20 of the rear side light emitting unit 2 are arranged at a predetermined interval on the entire side surface of the wheel of the vehicle. The LEDs 30 of the front side light emitting unit 3 are formed substantially radially so as to have a shape corresponding to the shape of the wheel of the vehicle.

(Operation of lighting member)
The operation of the illumination member 1 of the present embodiment will be specifically described.
In the illumination member 1 of the present embodiment, the control device 5 controls the light emission of the rear side light emitting unit 2 and the front side light emitting unit 3.
In response to an instruction from the control device 5, the LEDs 20 (20A to 20D) of the rear light emitting unit 2 emit light. The light emitted from the LED 20 is emitted to the diffusion member 23 located on the front side. The light irradiated to the diffusion member 23 is diffused in the diffusion member 23 and is irradiated from the surface 23 a of the diffusion member 23 as diffused light. The light irradiated from the surface 23 a of the diffusion member 23 as diffused light passes through the skin member 4 and is irradiated from the surface of the illumination member 1 toward the outside of the vehicle. The light emitted from the LED 20 of the rear side light emitting unit 2 is irradiated from the surface of the illumination member 1 as diffused light by the diffusion member 23, and it is visually recognized as if the surface of the illumination member 1 was emitted on the entire surface. The light emitted from the LED 20 of the rear side light emitting unit 2 causes the entire surface in the circle indicated by the broken line 2 to emit light in FIG. 1.

  In response to an instruction from the control device 5, the LEDs 30 (30A to 30D) of the front light emitting unit 3 also emit light. The light emitted from the LED 30 is irradiated to the skin member 4 and passes through the skin member 4. Then, the light is irradiated from the surface of the skin member 4 to the outside of the vehicle. The light emitted from the LED 30 of the front side light emission unit 3 is not transmitted through the diffusion member 23, and therefore, is emitted from the surface of the illumination member 1 as light that is not diffused light. That is, on the surface of the illumination member 1, the light emission of the portion provided with the LED 30 of the front side light emission unit 3 is visually recognized. The light emitted from the LED 30 of the front side light emitting unit 3 is made to emit light so as to display the design expression indicated by the broken line symbol 3 in FIG. 1.

  In the front side light emitting unit 3, the LED 30 is housed and fixed in the housing member 32 having no light transparency. The light of the rear side light emitting unit 2 is not displayed in the area of the skin member 4 corresponding to the area where the housing member 32 of the front side light emitting unit 3 is disposed. That is, only the light emission of the front side light emitting unit 3 is displayed. According to this configuration, the light emission area of the front side light emission unit 3 is shielded by the light of the rear side light emission unit 2 and the light emission of the front side light emission unit 3 is displayed more clearly (in the state where the boundary is clear) .

(Effect of the illumination member of the present embodiment)
As shown in FIGS. 1 and 2, the illumination member 1 of the present embodiment has a rear side light emitting unit 2, a front side light emitting unit 3, and a skin member 4. The back side light emission part 2 has LED20 and the spreading | diffusion member 23 which has light transmittance arranged in the front. The front side light emitting unit 3 is disposed on the front side of the diffusion member 23 including the LED 30 and the housing member 32 for housing the LED 30. The skin member 4 is disposed on the front side of the front side light emitting unit 3 and has light transparency.

  The illumination member 1 of the present embodiment has two light emitting parts of the rear side light emitting part 2 and the front light emitting part 3 (that is, LEDs 20 and 30 of two different light emitting parts 2 and 3). According to this configuration, the LEDs 20 and 30 of the two light emitting units 2 and 3 can emit light separately. That is, the vehicle illumination member 1 is capable of different light emission expressions.

Further, in the illumination member 1 of the present embodiment, a plurality of light emission expressions in which the two light emitting portions 2 and 3 are different are possible. According to this configuration, the light emission expressions of the two light emitting units 2 and 3 can be given different meanings, and more information can be displayed outside the vehicle.
For example, the LEDs 30 of the front side light emitting unit 3 are arranged in accordance with the wheel, and can perform light emission expression in accordance with the rotation of the wheel. That is, it can be expressed that the vehicle is traveling.

  On the other hand, the LED 20 of the rear side light emitting unit 2 emits light (surface light emission) on the entire side surface of the wheel. The LED 20 of the rear side light emitting unit 2 can display the state of the vehicle. For example, it can be set to emit a predetermined light when the vehicle is moving forward or backward. Furthermore, in an automatic driving vehicle, the LED 20 of the rear side light emitting unit 2 can be set to emit different light in each of the manual operation mode and the automatic operation mode.

  In the illumination member 1 of the present embodiment, the housing member 32 of the front side light emitting unit 3 shields the light emitted by the LED 20 of the rear side light emitting unit 2. According to this configuration, in the region of the skin member 4 in which the light emission of the front side light emitting unit 3 is displayed, the light of the rear side light emitting unit 2 is not displayed, and only the light emission of the front side light emitting unit 3 is displayed. According to this configuration, the boundary between the light emitting surface of the rear side light emitting unit 2 and the light emission of the front side light emitting unit 3 is clarified, and a plurality of light emission expressions can be more clearly viewed.

  The illumination member 1 of the present embodiment is provided at a position where the LEDs 20 of the rear side light emitting unit 2 do not overlap with the front side light emitting unit 3. Since the housing member 32 of the front side light emitting unit 3 does not have light transparency, even if the LED 20 of the rear side light emitting unit 2 is provided at a position overlapping with the front side light emitting unit 3, the light of the LED is the illumination member 1. It is hard to be irradiated from For this reason, the increase in the cost by arrange | positioning unnecessary LED20 is suppressed.

  In the illumination member 1 of the present embodiment, the rear side light emitting unit 2 has a diffusion member 23 disposed in front of the LED 20. According to this configuration, the diffusion member 23 diffuses the light of the LED 20, whereby the light emitted by the rear side light emitting unit 2 becomes surface light emission. As a result, it is possible to emit light of a light emission form different from the light emitted by the front side light emitting unit 3, and it is possible to emit light more excellent in visibility.

  The illumination member 1 of the present embodiment includes the control device 5 connected to the LED 20 of the rear side light emitting unit 2 and the LED 30 of the front side light emitting unit 3. According to this configuration, the control device 5 can control the light emission of the LEDs 20 and 30 of the two light emitting units 2 and 3. As a result, the illumination member 1 of the present embodiment can emit light with different light emission patterns.

[Modification 1]
In the first embodiment, the housing member 32 of the front side light emitting unit 3 is a member having a tank shape opened on the front side facing the vehicle exterior, but as shown in FIG. 3, the opening may be closed.
The illumination member 1 of the present embodiment, as shown in FIG. 3, has a lid member 33 disposed on the front side of the housing member 32 and covering the opening.
The lid member 33 is made of a light transmitting material. The lid member 33 is formed such that its surface 33 a is in the same plane as the surface 23 a of the diffusion member 23.

The illumination member 1 of the present embodiment is provided with a lid member 33 that covers the opening of the housing member 32. According to this configuration, the surface 33 a of the lid member 33 and the surface 23 a of the diffusion member 23 form the same plane, and the back surface side of the skin member 4 is free of irregularities. As a result, the surface of the skin member 4 is free of irregularities, and a reduction in the appearance of the illumination member 1 is suppressed.
Furthermore, according to the illumination member 1 of the present embodiment, the skin member 4 can be omitted. In this case, the lid member 33 corresponds to a skin member.

[Modification 2]
In the first embodiment, the LEDs 20A to 20D of the rear side light emitting unit 2 and the LEDs 30A to 30D of the front side light emitting unit 3 are controlled to light in the same manner, but each LED may be controlled independently. .
According to this configuration, various light emission expressions become possible. As a result, the design of the illumination member 1 (and the mounted vehicle) is further improved.

[Variation 3]
Although the form which applied the illumination member 1 to the wheel of a vehicle was shown in Embodiment 1 and the modifications 1-2, the mounting position of the illumination member 1 is not limited. For example, it may be applied to a bonnet at the front of a vehicle, a rear panel, a side door, and the like. Moreover, the light emission expressions of the LED 20 and the LED 30 can also be expressions according to the mounting position.

1: Lighting member 2: Rear light emitting unit 20: LED
3: Front light emitting unit 30: LED 32: Housing member 4: Skin member 5: Control device

Claims (5)

A rear side light emitting unit having a first light source unit emitting light forward, and a light transmitting member having a light transmitting property disposed in front of the first light source unit;
A front light emitting unit disposed on the front side of the light transmitting member, having a second light source unit emitting light forward and a housing member for housing the second light source unit;
A light transmitting skin member disposed on the front side of the front light emitting portion;
An illumination member for a vehicle, comprising:   The vehicle illumination member according to claim 1, wherein the housing member shields the light emitted by the first light source unit.   The vehicle illumination member according to any one of claims 1 to 2, wherein the first light source unit is provided at a position not overlapping the front light emitting unit.   The said light transmissive member diffuses the light which the said 1st light source part emits, The lighting member for vehicles of any one of Claims 1-3.   The vehicle illumination member according to any one of claims 1 to 4, further comprising a control unit connected to the first light source unit and the second light source unit to control light emission of each of the light source units.

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