JP4485713B2 - Transparent roof lighting system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device for a vehicle interior, and more particularly to a transmission roof lighting device that enhances the lighting effect of the roof portion of the vehicle interior.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a lamp unit in which a light bulb, a shade, and switches are integrated in a roof portion of a vehicle interior has been used. By using this lamp unit, night visibility in the driver's seat and passenger seat is ensured, and maps and the like can be easily read at night.
By the way, with the diversification of needs for vehicles in recent years, the way of thinking about lighting devices is also changing, and it is positioned as something that gives more comfort not only as a practical aspect, but as a nighttime effect. Tend.
[0003]
[Problems to be solved by the invention]
However, the conventional illumination device using the lamp unit has a problem that it is not possible to flexibly meet such needs. For example, when trying to spread the light emitting part over the whole, a structure such as a lens and a reflector for diffusing the light from the light bulb is required. As a result, the protruding part into the vehicle interior increases and the interior space is reduced. There is a problem of narrowing. Further, in order to increase the area of the light emitting portion, it is possible to arrange a plurality of lamp units, but there is a problem that the number of assembling steps increases.
Therefore, the present invention provides a transmissive roof lighting device that can reduce the number of assembling steps without reducing the space in the vehicle interior and can enhance the effect of illumination at night.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the invention described in claim 1 is directed to an EL element sheet (for example, the EL element sheet 13 in the embodiment) that is a light emitter and a light-transmitting skin (for example, in the embodiment). It is configured as a roof material (for example, the roof material 3 in the embodiment) laminated with the skin 14), and is provided between the roof material and the garnish (for example, the garnish 5 in the embodiment) attached to the roof material. A plurality of lamps provided with another light emitter (for example, the LED light 10 in the embodiment) built in the gap portion (for example, the gap portion S in the embodiment), the other light emitters being provided in series. (For example, the lamp 19 in the embodiment) is covered with a casing made of a transparent member (for example, the casing 22 in the embodiment), and the gap Is adhered to the skin along with along portion disposed between the skin and the garnish covering the EL element sheet, characterized in that it is a reinforcing member for supporting the garnish.
By comprising in this way, it becomes possible to arrange | position thinly, without integrating with a roof material and projecting along a roof material. If the roof material is assembled, the lighting device is assembled.
Furthermore, an indirect illumination effect by other light emitters can be added, and a more novel illumination effect can be exhibited.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a roof member 2 of a vehicle body 1 is provided with a roof material 3 on the vehicle interior side.
[0007]
As shown in FIG. 2 as a perspective view seen from the vehicle interior side, the roof material 3 is formed of resin or the like and is attached to a roof rail that forms the periphery of a roof opening (not shown). A garnish 5 is attached to the roof material 3 at the center in the vehicle width direction in the front-rear direction.
[0008]
As shown in FIG. 3, the garnish 5 is fixed by being engaged with a mounting portion 6 provided on the roof material 3, and has a garnish main body 7 and a skin portion 8. The garnish body 7 is provided with engaging portions 9 for the attachment portions 6 of the roof material 3, and the storage portions 11 of LED lights 10 as other light emitters to be described later are provided on the roof material 3 side on both sides of the garnish body 7. Is formed. Both side portions of the garnish main body 7 are formed to be inclined for a while toward the storage portion 11 side of the LED light 10, that is, the roof material 3 side, and the terminals 8 a of the skin portion 8 attached to the side surface of the vehicle interior are on both sides of the garnish main body 7. It extends from the part and comes close to the roof material 3. A portion extending between the terminal 8 a of the skin material 8 and the roof material 3 and the storage portion 11 of the LED light 10 constitutes a gap portion S.
[0009]
The roof material 3 is formed by laminating a base material 12 and an EL element sheet 13 which is a light emitter with a light-transmitting coarse skin 14.
The base material 12 of the roof material 3 is provided with thin portions 12b that are thinner than the general portion 12a in the left half portion and the right half portion with respect to the vehicle width direction. An EL element sheet 13 is attached to the surface of the thin wall portion 12b via an adhesive 15 such as a double-sided tape. Further, a light-transmitting rough skin 14 such as a knit is attached to the EL element sheet 13 on a double-sided tape. Are laminated via an adhesive 15 such as.
[0010]
Therefore, even if the EL element sheet 13 and the skin 14 are polymerized, they are within the thickness dimension of the general portion 12a of the substrate 12.
Here, the EL element sheet 13 emits light using organic electroluminescence, and emits light on the same principle as an LED (Light Emitting Device) made of an inorganic semiconductor. The feature is that the emission color is natural and flexible. For example, it is manufactured by thinning a polymer organic material by a spin coating method or the like. In FIG. 3, one side portion (metal hatched portion) of the EL element sheet 13 is configured as a conductive line.
[0011]
In this embodiment, as shown in FIGS. 2 and 5, a total of eight EL element sheets 13 are arranged on the left and right, and each EL element sheet 13 is connected to a vehicle battery power source 17 via an EL inverter 16. Has been. Here, 18 denotes a switch, and all the EL element sheets 13 are turned ON / OFF simultaneously. However, a switch is provided for each EL element sheet 13 so that each EL element sheet 13 emits light independently. It may be.
The skin 14 is not limited to a rough skin such as knit as long as it has a light transmission property capable of irradiating light from the EL element sheet 13 into the vehicle interior, and may be a non-woven fabric or a transparent resin material. You can also
[0012]
And the LED light 10 provided with the some lamp | ramp 19 is attached to the said accommodating part 11 with the adhesive agents 20, such as a double-sided tape, as shown in FIG.
The LED light 10 has a white high-brightness LED lamp 19 attached to a reflecting plate 21 such as a metallized acrylic plate, and this is covered with a casing (which may be an acrylic square) 22 manufactured by epoxy casting. A diffusion plate 23 made of vinyl chloride is provided on the surface in the lamp irradiation direction side.
The LED light 10 is built in the storage portion 11 in a state where the surface on which the diffusion plate 23 is disposed is oriented between the terminal 8 a of the skin portion 8 of the garnish body 7 and the roof material 3. . The LED light 10 also functions as a reinforcing material that supports the garnish 5.
[0013]
As shown in FIG. 6, in this embodiment, 20 lamps 19 connected in series are connected to a resistor R and further connected in parallel in 10 stages to form a circuit. 25 is connected to the vehicle battery power source 17 via the vehicle.
[0014]
According to the above-described embodiment, when the switch 18 is turned on, each EL element sheet 13 emits light, so that the portion other than the garnish 5 of the roof material 3 in the vehicle interior transmits through the skin 14 and emits light. Unprecedented lighting effects can give passengers comfort.
Further, even if the EL element sheet 13 and the skin 14 are superposed on the thin portion 12b of the base material 12, they are stored in a reduced thickness within the thickness dimension of the general portion 12a of the base material 12. As a result, the vehicle interior space can be widened as compared with the conventional case where the bulge protrudes.
[0015]
When the lamp switch 25 is turned on, the lamps 19 are turned on, and the LED lights 10 are lit on both sides of the garnish 5, so that indirect illumination in which light leaks from between the garnish 5 and the roof material 3 is performed. Due to the effect, a more comfortable lighting effect can be exhibited. In addition, since the LED light 10 cannot be seen by the skin part 8 of the garnish 5, appearance quality is not impaired.
In addition, since the EL element sheet 13 and the skin 14 are incorporated in the roof material 3 and the roof material 3 is assembled, a lighting device is assembled. Therefore, a plurality of room lamps are provided in order to secure the area of the light emitting portion as in the prior art. The number of assembling steps can be reduced compared to when assembled.
And since the indirect lighting effect by the LED light 10 can be added and the novel lighting effect can be exhibited, the effect effect by lighting increases and it can make the night interior of a car more likable.
[0016]
In addition, this invention is not restricted to the said embodiment, For example, you may make it arrange | position the EL element sheet | seat 13 in the one part surface instead of the whole surface of the roof material 3. FIG. Further, the switch 18 and the lamp switch 25 can be shared, and the EL element sheet 13 and the LED light 10 can be simultaneously turned on and off with one switch. Furthermore, in this embodiment, the case where the garnish 5 is provided in the center in the vehicle width direction and the LED light 10 is arranged along the garnish 5 has been described. However, the arrangement position of the garnish 5 is in the center in the vehicle width direction. It is not restricted and may be the circumference | surroundings of the roof material 3, or a site | part other than that. The number of the EL element sheets 13 is not limited to eight, and can be freely set such as changing the color of each EL element sheet 13 or blinking each EL element sheet 13 with a time difference. In place of the adhesives 15 and 20, other fixing means such as a clip may be used.
[0017]
【The invention's effect】
As described above, according to the first aspect of the present invention, since it can be arranged without protruding along the roof material by being integrated with the roof material, a wide space in the vehicle interior is secured. There is an effect that can be done. Moreover, since the lighting device is assembled when the roof material is assembled, there is an effect that the number of assembling steps can be reduced.
[0018]
In addition , the indirect lighting effect of other light emitters can be added to achieve a more innovative lighting effect, so that the effect of lighting can be enhanced and the night passenger compartment can be more pleasing. There is.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the roof material according to the first embodiment of the present invention.
FIG. 3 is a partial cross-sectional view taken along line AA in FIG.
FIG. 4 is a plan view of the LED light according to the first embodiment of the present invention.
FIG. 5 is a circuit diagram of an EL element sheet according to the first embodiment of the present invention.
FIG. 6 is a circuit diagram of the LED lamp of the first embodiment according to the present invention.
[Explanation of symbols]
3 Roof material 5 Garnish 10 LED light (other light emitters)
13 LE element sheet 14 Skin S Clearance

Claims (1)

The EL element sheet, which is a light emitter, is configured as a roof material that is laminated with a light-transmitting skin, and another light emitter is provided in a gap provided between the roof material and a garnish attached to the roof material. The other illuminant includes a plurality of lamps arranged in a row, covered with a casing made of a transparent member, and between the skin covering the EL element sheet along the gap and the garnish. A transmissive roof illuminating device, wherein the illuminating roof illuminating device is a reinforcing material that is disposed on the outer skin and is bonded to the outer skin to support the garnish .

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