JP2887798B2 - Lighting equipment for vehicles - 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 for vehicles such as a train and a bus.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a luminaire used for a commuter train is provided with lamp sockets (not shown) at both ends of a luminaire main body 1 fixed to a ceiling surface in a car. A straight tube lamp 2 is connected between the sockets, and the base of the lamp socket and the lamp 2 is covered with a cover 3.

[0003] In a commuter train or the like, seats are installed facing each other along both sides of the vehicle, and lighting fixtures are arranged above the respective seats.

[0004]

In the conventional vehicle lighting device, since the lamp 2 is exposed, when a passenger sitting on one side of the seat slightly shifts his line of sight upward from the front,
Lamp 2 of a lighting fixture arranged above the seat on the other side
Enter the field of view, giving rise to discomfort due to the glare of the direct light of the lamp 2 or causing eyestrain.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a vehicle lighting device capable of controlling the emission of light from a lamp in accordance with a plurality of irradiation directions requiring illuminance. It is intended for.

[0006]

[Means for Solving the Problems] of claim 1 the invention comprises a fixture body, and a cover member surrounding the lamp to be mounted on the instrument body, said cover member, the overall low permeability portion Yusuke to Rutotomoni, cross section perpendicular to the axial direction of the lamp
Plurality corresponding to a plurality of radiation directions which require illumination in the direction
Those having a high transmittance portion.

According to a second aspect of the present invention, in the first aspect of the invention, the high transmittance portion of the cover body is formed by an opening.

[0008]

According to the first aspect of the present invention, the light of the lamp is applied to the cover body.
It is emitted through a plurality of high transmittance sections to effectively illuminate a plurality of irradiation directions requiring illuminance, for example, an advertising surface in a vehicle, a reading surface of a passenger sitting in a seat or a passenger holding on a hanging strap. You. In addition, the light of the lamp is blocked or reduced by the low transmittance portion of the cover body, so that intense light is emitted to an irradiation direction that does not require much illuminance, for example, a passenger sitting on a seat opposite to the side where the appliance is installed. To prevent it from being done.

According to the second aspect of the present invention, in the first aspect of the present invention, since the high transmittance portion is formed as an opening, the light efficiency is good and a spot-like illumination effect is obtained.

[0010]

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

FIG. 2 shows an interior 11 of a commuter train or the like as a vehicle. In the interior 11, seats 12 are installed facing each other at lower portions on both sides, and a net shelf 13, an advertising surface 14 and a hanging leather 15 are installed at upper portions on both sides.
And an advertisement sheet mounting portion 18 having an advertisement sheet 17 suspended from an advertisement surface 16 on the upper surface. The lighting fixtures 21 are installed on the ceiling above the seats 12 on both sides.

As shown in FIGS. 3 to 5, the lighting apparatus 21 is an apparatus using a straight tube lamp L.
Are elongated along the longitudinal direction. Note that FIG.
The cross-sectional state of the lighting fixture 21 shown in FIG.
Corresponding to 21, the left side of the lighting fixture 21 is called the inside of the vehicle, and the right side is called the outside of the vehicle.

The lighting fixture 21 has a fixture main body 22,
The instrument main body 22 is formed in a substantially U-shaped cross section, and end plate members 23 are attached to both ends. A ballast 24 and a terminal block 25 are attached at the center of the lower face of the instrument main body 22 and both ends of the lower face are attached. A mounting bracket 26 having a substantially U-shaped cross section is mounted on the mounting member.

A lamp socket 27 to which the lamp L is connected is mounted on each mounting bracket 26, and a decorative plate 29 provided on a lower surface of the fixture body 22 is screwed into the mounting bracket 26 with a decorative screw 29. Installed by. The reflection plate 28
A horizontal reflector plate 30, an inclined reflector plate 31 bent obliquely upward from the inner edge of the horizontal reflector plate 30, and a diagonally lower portion from the outer edge of the horizontal reflector plate 30; And a bent reflecting plate portion 32.

A lamp L and a reflector 28 are provided on the lower surface of the appliance body 22.
A cover body 41 surrounding the device is detachably attached. The cover body 41 has a curved surface portion 42 facing the inside of the vehicle, a flat inclined portion 43 facing the outside of the vehicle, vertical portions 44 and 45 formed at upper ends on both sides, and an opening formed upward. ing. Inside the vertical section 44, 45, inside the car
The packing 46 which comes into contact with the ceiling structure 11 is a mounting member 47,
Each is attached by 48.

An end plate 49 is attached to the inside of both ends of the cover body 41, and a V spring 51 is attached to the end plate 49 via a mounting bracket 50.
A spring portion 52 bent in a ring shape is attached. The V-spring 51 has a hooking piece 54 at the end of both ends 53, and each end 53 is elastic between the horizontal hooking pieces 56 of a support bracket 55 attached to the end plate member 23 of the instrument body 22. Are engaged. Then, in a state where the cover body 41 is pushed up with respect to the instrument main body 22, both ends 53 of the V spring 51 urge the cover body 41 upward by an elastic force of expanding, and the pushed up state is maintained. When the cover body 41 is forcibly lowered against the urging of the V-spring 51, the lamp L
When the cover body 41 is lowered to a position where a space is formed in which the cover body 41 can be replaced, both hook pieces 54 of the V spring 51 are hooked on the support fitting 55, and the cover body 41 is prevented from falling off.

The cover body 41 is made of an impermeable synthetic resin, a transparent synthetic resin whose surface is subjected to an impermeable treatment, or a metal plate or the like. It is formed as a low transmittance portion 61. In addition, slit-shaped openings 62a, 62b and 62c as high transmittance portions are formed in two parts along the longitudinal direction corresponding to the irradiation direction requiring illuminance.

The opening 62a is formed in the curved portion 42 on the inside of the vehicle such that the direct light S1 of the lamp L is emitted in the direction of the center advertising surface 16 in the interior 11 of the vehicle. The opening 62
As shown in FIG. 2, the direct light S1 emitted most downward through a is set at an angle .theta. that is above the head of the passenger sitting on the seat 12 on the side opposite to the appliance installation side.

The opening 62b is formed in the flat inclined portion 43 on the outside of the vehicle.
In particular, the direct light S2 of the lamp L is the advertising surface on the upper side
An opening is formed to emit light in the direction of 14.

The opening 62c is formed in the plane inclined portion 43 on the outside of the vehicle.
In particular, the direct light S3 of the lamp L is the seat on the equipment installation side of the cabin 11
An opening is formed so as to emit light in the direction of the reading surface of the passenger sitting at 12 or the reading surface of the standing passenger in front of the seat 12.

Next, the operation of this embodiment will be described.

As shown in FIG. 2, the lighting fixtures 21 are mounted on the ceiling above the seats 12 on both sides in opposite directions with the inside of the vehicle facing inward.

When the lamp L is turned on, the cover body is turned on.
The direct light S1 of the lamp L passes through the opening 62a
The light is emitted in the direction of the advertising surface 16 at the center of 11, and the advertising surface 16 is brightly illuminated.

Further, the direct light S2 of the lamp L is emitted through the opening 62b in the direction of the advertising surface 14 on the upper side surface of the vehicle interior 11, so that the advertising surface 14 is brightly illuminated.

Further, through the opening 62c, the direct light S3 of the lamp L is directed to the reading surface of the passenger sitting on the seat 12 on the instrument installation side of the vehicle interior 11 and the reading surface of the standing passenger in front of the seat 12. And their reading surfaces are brightly illuminated.

A part of the light emitted from the lamp L is
Each of the openings 62a is reflected by the reflection plate 28 and the inner surface of the cover body 41,
The light is emitted to a wide area through 62b and 62c, and the entire interior 11 of the vehicle is illuminated.

As shown in FIG. 2, the direct light S1 emitted from the lowermost portion through the opening 62a is at an angle above the head of the passenger sitting on the seat 12 on the side opposite to the device installation side. is set to θ, even if the passenger sitting on the seat 12 on one side shifts his line of sight slightly upward from the front, the lamp L of the lighting fixture 21 disposed above the seat on the other side is It is possible to prevent discomfort and eyestrain due to the glare of the direct light of the lamp L without entering the visual field.

Therefore, the advertising surface 14,
The direct light of the lamp L is illuminated in a spot manner on the reading surface 16 and the reading surface to secure the illuminance. Irradiation can be prevented.

When the passenger sitting on the seat 12 looks up at the lighting fixture 21 directly above, the lamp L is visually recognized through the opening 62b of the cover body 41, and the width and length of the opening 62b are determined by the lamp. By being formed smaller than L, the opening 62
It was confirmed by experiment that b was visually recognized as being covered with a milky white cover and did not feel dazzling.

The cover 41 may be provided with a low transmittance portion as a whole and a high transmittance portion corresponding to an irradiation direction requiring illuminance. For example, as the low transmittance portion, In addition to the impermeability of the above embodiment, it may be formed of a low transmissive member such as a milky white cover, and as the high transmittance portion, in addition to the opening of the above embodiment, a transparent cover or glass, etc. May be constituted by a highly permeable member, and the same operation and effect as those of the above-described embodiment can be obtained by any combination of usage modes.

[0031]

According to the first aspect of the present invention, the cover surrounding the lamp is provided as a whole with a low transmittance portion, and a plurality of illuminances needing illuminance in a cross-sectional direction perpendicular to the axial direction of the lamp are provided . Since a plurality of high transmittance portions are provided corresponding to the irradiation direction, for example, an advertisement surface or a reading surface in a vehicle that requires illuminance is effectively illuminated, and a device installation side in the vehicle that does not require much illuminance, for example. Intense light can be prevented from being emitted to a passenger or the like sitting on a seat on the opposite side of the vehicle.

According to the second aspect of the present invention, in the first aspect of the present invention, since the high transmittance portion is formed as an opening, light efficiency can be improved and a spot-like illumination effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an orientation of a vehicle lighting device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an orientation in a vehicle according to the embodiment.

FIG. 3 is a sectional view of the vehicle lighting device of the embodiment.

FIG. 4 is a side view of the vehicle lighting device of the embodiment as viewed from the inside of the vehicle.

FIG. 5 is a side view of the vehicle lighting device of the embodiment as viewed from the outside of the vehicle.

FIG. 6 is a side view of a conventional vehicle lighting fixture.

[Explanation of symbols]

 22 Instrument body 41 Cover body 61 Low transmittance section 62a, 62b, 62c Opening as high transmittance section L lamp

Claims (2)

(57) [Claims] And 1. A device body, and a cover member surrounding the <br/> lamp to be mounted on the instrument body, the cover body, having a low transmittance portions Overall Rutotomoni, wherein a plurality of high transmission unit corresponding to a plurality of radiation directions which require illumination in cross-sectional direction perpendicular to the axial direction of the lamp
A lighting device for a vehicle, comprising: 2. The vehicle lighting device according to claim 1, wherein the high transmittance portion of the cover body is formed by an opening.