JP2568941Y2 - Vehicle lighting system - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device installed in a passenger compartment of a vehicle.

[0002]

2. Description of the Related Art In general, in a passenger compartment of a vehicle, seats are arranged on both sides of a window with a central passage interposed therebetween, and a luggage shelf is provided on a curtain plate above the seats in the longitudinal direction of the passenger compartment. The lighting is performed by lighting fixtures such as fluorescent lamps arranged in one or two rows on the ceiling.In order to make the distribution of illuminance in the cabin as uniform as possible and to provide glare-free lighting, light from the light source must be In some cases, indirect lighting that reflects light from the ceiling or the like is used.

[0003]

[Problem to be solved by the present invention] However, in the above-described structure, the ceiling portion that does not require much illuminance is the brightest,
The illuminance of the aisle and the seat at the feet where the most illumination is required tends to be insufficient, and extra luminaires are required to maintain the illuminance of the aisle and the seat, which may be dazzling in some cases.

Further, depending on the positional relationship between the lighting equipment and the luggage shelf, the illuminance is insufficient on the seat side located below the luggage shelf, and another illuminating equipment such as a reading light is provided above each individual seat to reduce the illuminance. There is a supplement to this, and the increase in the number of lighting fixtures leads to an increase in cost and an increase in weight.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicular lighting apparatus which has a simple structure, increases illuminance on a passage surface and a seat side where illumination is required most, and does not cause dazzling lighting equipment.

[0006]

In order to achieve the above object, the vehicle lighting device of the present invention has a first configuration in which a transparent plate is used for each of an upper plate and a lower plate, and a hollow section is used. A luggage shelf formed in a double structure is provided in the longitudinal direction of the passenger compartment of the vehicle, and an illuminating light is provided in the luggage shelf, and the inner surface of the upper plate and the lower plate refracts light applied to the back surface. A lens film that spreads over the entire surface.

In the second configuration, a luggage shelf formed of a double structure having a hollow cross section is provided in the longitudinal direction of the passenger compartment of the vehicle using a translucent plate material for the lower plate, and lighting is provided in the luggage shelf. A lamp is provided, and a lens film that refracts light applied to the back surface and diffuses the entire surface is adhered to the inner surface of the lower plate. In addition, a reflection plate is provided on the inner surface of the upper plate of the luggage shelf.

[0008]

Thus, in the first configuration, the entire surface of the upper and lower plates of the luggage shelf becomes the light emitting surface, and in the second and third configurations, the entire surface of the lower plate of the luggage shelf becomes the light emitting surface. Therefore, it is possible to increase the illuminance of the aisles and seats that need the most lighting,
Further, since the light emitting surface is wide, even if the light source is located at a relatively low position, no glare is felt.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In the passenger compartment 1 of the passenger car 1, seats 3 and 3
There are also two rows of seats arranged on the opposite window side with a central passage (not shown) interposed therebetween, and a luggage shelf 5 extending above the seats 3, 3 on a curtain plate 4 above the window. Are provided in the longitudinal direction of the cabin.

The luggage shelf 5 includes an upper plate 5a formed of a thick plate made of, for example, polycarbonate having a light-transmitting property, and a lower plate 5b formed of a thin plate made of, for example, polycarbonate having a light-transmitting property. It is formed in a double structure having a hollow cross section in which the distance between the two narrows at an appropriate angle toward the side, and is supported by a load shelf receiver 6 provided at a key point in the longitudinal direction of the passenger compartment, and the luggage is placed on the upper plate 5a. Is appropriately placed.

The upper plate 5a is attached to a support plate 8 whose end on the window side is continuous with the ceiling plate 7, and the lower plate 5b is a mounting bracket fixed on the decorative plate 9 covering the end of the window on the curtain plate 4. A fluorescent lamp 11 is provided in the cabin longitudinal direction as an illuminating lamp in the base of the luggage shelf 5 which is connected to the curtain plate 4, the lower plate 5 b, and the support plate 8.

The fluorescent lamp 11 has a reflecting plate 11a
When it is turned on, it illuminates between the upper plate 5a and the lower plate 5b of the luggage shelf 5 and the decorative plate 9 above the side window.

On the inner surface of the upper plate 5a of the luggage shelf 5, as a lens film 12 for refracting the light irradiated on the back surface and diffusing the entire surface, for example, a surf film (trade name, manufactured by Sumitomo 3M Limited) is adhered. ing.

The lens film 12 is a translucent film. As shown in FIG. 3, the rear surface 12a is flat, and the front surface 12b attached to the lower surface of the upper plate 5a is a light transmissive film. A wave shape is formed in a direction parallel to the direction, and a part of the light emitted from the fluorescent lamp 11 to the back surface 12a at a small incident angle is reflected toward the lower plate 5b, and the remaining light is transmitted and reflected by the inner surface. It is refracted and diffuses uniformly over the entire surface 12b.

Therefore, when the fluorescent lamp 11 is turned on, the entire surface of the upper plate 5a becomes a light emitting surface.

The ratio of light reflected from the back surface 12a of the lens film 12 can be set arbitrarily.

A trough film (trade name, manufactured by Sumitomo 3M Limited) is adhered to the inner surface of the lower plate 5b of the luggage shelf 5 as a lens film 13 that refracts light applied to the back surface and diffuses the entire surface. Have been.

The lens film 13 is a translucent film, and as shown in FIG. 4, the back surface 13a is formed in a wave shape in a direction perpendicular to the direction of the light to be irradiated, and is adhered to the inner surface of the lower plate 5b. The front surface 13b is formed in a flat surface, and refracts the light emitted from the fluorescent lamp 11 to the rear surface 13a at a small incident angle at a substantially right angle, and diffuses the entire surface 13b.

Therefore, when the fluorescent lamp 11 is turned on, the light radiated directly from the fluorescent lamp 11 and the light reflected from the lens film 12 are refracted and diffused over the entire surface 13b, and the entire surface of the lower plate 5b. Is a light emitting surface.

There is a gap between the lower plate 5b and the decorative board 9, and the light of the fluorescent lamp 11 irradiates the decorative board 9 on the side window from the gap. Thus, by indirectly illuminating the seats 3 and 3 and brightening the side walls, it is possible to make the room feel wider.

With the above configuration, the light emitted from the upper plate 5a of the luggage shelf 5 illuminates the ceiling, and the light emitted from the lower plate 5b of the luggage shelf 5 passes through the seats 3,3. Illuminate the road surface.

Therefore, the seats 3, 3 and the aisle are illuminated from the lower plate 5b of the luggage shelf 5 at a position lower than the conventional ceiling part, so that the illuminance of the aisle, which needs the most illumination, and the seats 3, 3 is reduced. Since the light is diffused and the light emitting surface is widened, no glare is felt.

In the above embodiment, the lens film 12 adhered to the inner surface of the upper plate 5a is made of a material that reflects a part of the irradiated light, but may be a material that transmits all the light. Further, the lens film 1 adhered to the inner surface of the lower plate 5b
3 may be a partially reflective type.

Further, a translucent plate material may be used only for the lower plate 5b, and the lens film 12 or the lens film 13 may be adhered to the inner surface of the lower plate 5b. An auxiliary light may be provided. Further, when a reflection plate is provided on the inner surface of the upper plate 5a, the illumination efficiency is improved.

[0026]

As described above, according to the present invention, as described above, an illuminating lamp is provided in a luggage shelf formed in a double structure having a hollow cross section by using translucent plate materials for the upper plate and the lower plate. Since a lens film that refracts light applied to the back surface and diffuses the entire surface is attached to the inner surfaces of the upper plate and the lower plate, light from the illumination lamp is diffused by the lens film, and the upper plate and the lower plate The light from the upper panel illuminates the ceiling, and the light from the lower panel illuminates the seat and the aisle.

Therefore, since the light is radiated from the luggage rack at a position lower than the conventional ceiling part, the illuminance of the passage surface and the seat part which require the most illumination can be increased, and the light is diffused and the light emitting surface is wide. It doesn't feel dazzling.

As a result, the illuminance on the aisle surface and the seat portion can be increased with a simple structure, and it is not necessary to mount a reading light on each seat as in the prior art, and the number of lighting fixtures can be reduced. The manufacturing cost can be reduced and the weight of the vehicle body can be reduced.

Further, a light-transmissive plate material may be used only for the lower plate, and the lens film may be adhered to the inner surface of the lower plate. Efficiency is improved.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a main part showing an embodiment of the present invention.

FIG. 2 is also a side view

FIG. 3 is an enlarged sectional view of a light guide film.

FIG. 4 is an enlarged sectional view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Room, 3 ... Seat, 4 ... Curtain board, 5 ... Luggage shelf, 5a ... Upper board, 5b ... Lower board, 6 ... Luggage receiver, 11 ... Fluorescent lamp, 12,13 ... Lens film, 12a, 13a: back surface, 12b, 13b: front surface

Claims (3)

(57) [Scope of request for utility model registration] 1. A luggage rack having a double structure with a hollow cross section is provided in the longitudinal direction of a passenger compartment of a vehicle by using a translucent plate material for each of an upper plate and a lower plate, and an illumination lamp is provided in the luggage rack. A vehicle lighting device, wherein a lens film that refracts light applied to a back surface and diffuses the entire surface is adhered to inner surfaces of the upper plate and the lower plate. 2. A luggage shelf formed of a translucent plate material having a hollow cross-section and provided in the longitudinal direction of a passenger compartment of a vehicle, and a lighting lamp is provided in the luggage shelf. A lighting device for vehicles, wherein a lens film that refracts light applied to a back surface and diffuses the entire surface is adhered to an inner surface of the lower plate. 3. The vehicle lighting device according to claim 2, wherein a reflection plate is provided on an inner surface of an upper plate of the luggage shelf.