JPH01160751A - Vehicle lamp - Google Patents

Abstract

PURPOSE:To increase the effect of calling attention of the driver in the following vehicle, and to reduce wind break sound by using the bottom surface of a thick wall section integrally incorporated with the lower surface of a front lens, as an inclined reflecting surface so as to reflect light from a light emitting diode rearward of the vehicle, and by projecting the upper front end part of the lamp body from an opening part. CONSTITUTION:The bottom surface of a thick wall section 38 integrally incorporated with the lower surface of a front lens 25 is used as an inclined reflecting surface 38a for reflecting light from a light emitting diode 4, and a lamp body 26 is projected from an opening part 30 in a spoiler 22. As a result, the height of the lamp can be increased with the confine of the spoiler 22, and the effect of illumination can be increased. Thus, it is possible to enhance the effect of calling attention of the driver in the following vehicle. Further, since the lamp body 26 is projected, a stepped part 48 is formed in the spoiler 22, disturbing the stream of air during running while lowering the velocity thereof, thereby it is possible ot reduce wind break sound by the spoiler 22.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vehicle lamp suitable for implementation as a high-mounted stop lamp, etc. installed on the rear upper surface or roof of a vehicle body to warn following vehicles. .

[Conventional technology]

2. Description of the Related Art High-mounted stop lamps are known as lighting devices that give warnings to vehicles behind in order to ensure road traffic safety. This is installed at the driver's eye level on the inside or outside near the rear window, and when it is brightly lit along with the brake lights when braking, it will alert the driver of the car behind you even more and prevent rear-end accidents. It is generally constructed as shown in FIGS. 7 and 8. In other words, 1 is a housing, 2 is a front lens that closes the front opening of the housing 1, and 3 is an element defining member disposed inside the front lens 2, and this defining member 3 is composed of a through hole. It has a large number of storage recesses 5 for storing light emitting diodes (LEDs) 4, respectively, and the inner peripheral surface of the front opening forms a paraboloid of revolution reflection surface 6. Of the light emitted from the LED 4, the direct forward light passes through the front lens 2 and is emitted to the outside, while the sideward light hits the reflective surface 6 and is reflected, becoming parallel light rays parallel to the optical axis. and passes through the front lens 2.

7 is a printed circuit board disposed on the back surface of the defining member 3; 9a;
, 9b are lead wires of the LED 4.

FIG. 9 is an electric circuit diagram of a lamp with such a configuration, in which the LEDs 4 are connected in series in each column (or row).
Furthermore, the LEDs 4 in each column (or row) are connected in parallel to a power source (battery).

R is a lighting resistor.

[Problem that the invention seeks to solve]

By the way, conventional high-mounted stop lamps like this one are designed with functionality first, so they are visually unsightly and do not match the design of the car body, and moreover, they are difficult to install on the outside of the car body. Because it has a box shape, it protrudes from the surface of the car body, creating a problem with large air resistance. Also, if the stop lamp is small, it will be difficult to stand out and will reduce the warning function, and if it is large, if it is installed inside the car body, it will reduce the effective area of the rear window, which will hinder visibility behind the car body.

Furthermore, since the defining member 3 is incorporated into the housing 1, there are many problems such as an increase in the number of parts.

Recently, as a way to solve the above-mentioned problem, a system has been developed in which a high-mounted stop lamp is incorporated into a spoiler that prevents the rear part of the vehicle from lifting up when driving. However, the tip of the spoiler is thin and the illumination width in the height direction is small.

Therefore, the present invention solves the above-mentioned problems,
It is built into the spoiler installed on the upper rear surface of the vehicle body or on the roof, and can increase the illumination width in the height direction, increasing the effect of alerting drivers of following vehicles, and reducing wind noise caused by the spoiler when driving. The object of the present invention is to provide a vehicular lamp that can reduce noise.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention opens openings on the rear end surface and the rear end lower surface of a spoiler installed on the upper surface of the rear end of the vehicle body or the roof, and a large number of light emitting diodes are installed on the rear end surface of the spoiler installed on the roof of the vehicle body. A lamp body consisting of a lamp body and a front lens mounted at a predetermined interval in the width direction is assembled into the opening of the spoiler, and the opening is closed by the front lens, and the front lens has the It has a thick part that covers the lower part of the opening, and the front part of this thick part is continuous with the front lower part of the front lens, and the bottom surface is inclined forward and downward to direct the light from the light emitting diode to the front of the lens. A reflective surface for reflection is formed, and the front end of the upper surface of the lamp body is made to protrude to the outside by a required dimension from the opening.

[Effect]

In the present invention, the thick portion of the front lens substantially increases the height of the front lens. Furthermore, by protruding from the opening of the spoiler, the lamp body forms a step between itself and the spoiler, which disturbs the airflow during travel and at the same time weakens its speed.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Mx diagram Figure 6 shows an example of nine cases in which the present invention is applied to a high mount stop lamp, and Figure 1 is similar to Figure 2.
I-line cross section, Figure 2 is a front view of main parts.

Figure 3 is a sectional view taken along the line T1 in Figure 2, and Figure 4 is a sectional view taken along the line IT-I in Figure 2.
V-line enlarged cross-sectional view, FIG. 5 is a v-v line enlarged cross-sectional view of FIG. 2,
FIG. 6 is an external perspective view of an automobile equipped with the lamp.

In these figures, a high mounted stop lamp 20
is disposed on the upper surface of the rear end of the vehicle body 21 so as to protrude toward the rear of the vehicle body, and is housed inside the spoiler 22, and constitutes the light body 26 together with the light body 24. A front lens 25, a printed circuit board 27 disposed inside the lamp body 26, a large number of LEDs 4 arranged horizontally in parallel at predetermined intervals on the surface of the printed circuit board 27, an inner lens 28, etc. Generally configured.

The spoiler 22 reduces lift at the rear of the vehicle body when the vehicle is running, and is flat, long in the left-right direction, and has a substantially airfoil cross-sectional shape, and has an opening 30 on its rear end surface that extends to the lower surface K of the rear end. It spans almost its entire length.

The lamp body 24 is formed into a flat plate shape, and the spoiler 22
A plurality of screw mounting portions 31 (FIGS. 3 and 4) are integrally provided on the back side at appropriate intervals in the left-right direction and protrude toward the front. . On the other hand, on the lower surface of the rear end of the spoiler 22, a plurality of nine foot portions 32 are integrally provided, which are bent upward into a substantially hook shape and correspond to each of the screw attachment portions 31. Screw mounting part 31
is fixed with screws. When installing the lamp body 24, place the body 24 into the opening 30 and the υ spoiler 22.
Place the screw mounting part 31 on the fixing part 32, insert the gilt 34 into the screw mounting holes 32m and 31aK provided in the fixing part 32 and the screw mounting part 31, and screw it into the screw mounting hole 35. The part 31 may be fixed to the fixed part 32.

The front lens 25 is formed into a box shape long in the left-right direction using a translucent resin colored red or yellow, and the rear opening end 37 is attached to the surface of the lamp body 24 (rear surface of the vehicle body) by ultrasonic welding or the like. Fixed by The front surface 25m of the front lens 25 forms a convex curved surface that substantially coincides with the rear end surface of the spoiler 22 to close the opening 30, and the front end of the lower surface 25b has the front surface 25m. Thick part 38 continuous to the lower part of a
are integrally protruded. The thick portion 38 is connected to the opening 30.
The bottom surface 38m forms a slope sloping downward in the front so that the cross-sectional shape is approximately fan-shaped, and the bottom surface 38& forms a reflective surface that reflects the light from the LED 4 in front of the lens. There is. The opening opening on the lower surface of the rear end of the spoiler 22, that is, the front side of the vehicle body that is in danger of being blocked by the thick part 38 of the opening 30, is colored the same color as the front lens 25. It is covered by a flat lens 39. One end of this lens 39 is fixed to the lower part of the lamp body 24 by ultrasonic welding or the like.

The printed circuit board 21 is disposed substantially parallel to the surface of the lamp body 24, and is fixed to the lamp body 24 at several locations including both ends thereof with setscrews 40 (FIG. 5). The printed circuit board 27 has an external cord 41 (
(Fig. 3) is connected at one end.

The inner lens 28 is bent into an abbreviated shape, and its vertical portion 28A faces the front of the LED 4 with an appropriate distance therebetween, and the inner lens 28 has a large number of light condensing lenses made of convex lenses on the inner surface of the vertical portion 28A. A lens 42 is integrally provided corresponding to each LED 4, and the front surface is textured to form a diffusing surface 43. On the other hand, inner lens 2
The horizontal portion 28B of 8 extends rearward along the inner bottom surface of the front lens 25, and is fixed to the lamp body 24 together with the front lens 25 and the printed circuit board 2T at several locations by the setscrews 40. There is.

The high mount strap lamp 20 having the configuration shown in FIG. ing. The reason for the protrusion is to reduce wind noise caused by the spoiler 22 when driving, and the protrusion dimension Δd is 0.2 to 1.0 m11.
It is considered to be a degree.

According to the high mount stop lamp 20 having such a configuration, since it is incorporated inside the spoiler 22, there is no need to secure a special installation location, and the external appearance of the vehicle body 21 is not spoiled in any way. Never. Further, the light emitted from the LED 4 is diffused by the condenser lens 42 and the diffusion surface 43 of the inner lens 28, and the light emitted from the front lens 25
Make it transparent and illuminate the rear of the vehicle. In that case, LED4
As shown in FIG. 4, a part of the light enters the thick part 38 of the front lens 25 and is reflected forward by the bottom surface, that is, the reflective surface 38&, so it stops by the thickness of the thick part 38. The illumination width p in the height direction as the lamp 20 increases,
Easier visibility from the rear. Therefore, the effect of alerting the driver of the following vehicle is improved.

Further, when the front lens 25 is made to protrude from the opening 30 of the spoiler 22, a step 48 (FIG. 4) is created between the upper part of the rear end surface of the spoiler 22 and the front end part of the upper surface of the front lens 25.
This step 48 disturbs the flow of air 49 flowing along the top surface of the spoiler during travel, and at the same time reduces its speed. As a result, the vortex of air generated behind the spoiler 22 changes, reducing wind noise caused by the spoiler 22. In addition, when the front lens 25 protrudes, the front peripheral edge of the lens 25 can be wiped cleanly during cleaning, and the opening edge of the opening 30 does not act as an edge, making it safer.

In the above embodiment, the spoiler 22 is provided on the rear upper surface of the vehicle body 21, but it is of course possible to provide the spoiler 22 on the roof.

〔Effect of the invention〕

As explained above, since the vehicle lamp according to the present invention is constructed by being incorporated inside the spoiler, there is no need to secure a location for installing the lamp on the rear upper surface of the vehicle body, on the roof, etc. Since it is possible to provide long strip-shaped illumination, it is possible to provide a progressively innovative lighting device.A thick part is integrally provided on the lower surface of the front lens, and the bottom of this thick part is made into an inclined reflective surface. Since the light is reflected toward the rear of the vehicle body, the height of the lamp can be increased within the constraints of the spoiler, and the lighting effect can be improved. Also, since the light body protrudes from the opening of the spoiler, it has great effects such as reducing the wind noise generated by the spoiler when driving, and can be applied to external high-mounted stop lamps. It is suitable.

[Brief explanation of the drawing]

Fig. 1 is a sectional view taken along the line 1-1 in Fig. 2, which shows an embodiment of the present invention applied to a high-mounted stop lamp, Fig. 2 is a front view of main parts, and Fig. 3 is a second drawing dimension -W. 4 is an enlarged sectional view taken along the line IV-IV of FIG. 2, and FIG. 5 is an enlarged sectional view taken along the line IV-IV of FIG.
6 is an external perspective view of a car equipped with the same lamp, 7 and 8 are external perspective views and sectional views of a conventional high mount stop rung, and 9 is an electric circuit diagram. It is. 4...Light emitting diode, 20...Imount stop lamp, 21...Vehicle body, 22...Spoiler, 24...Lighting body~25...Front lens, 2B...Light body, 27 fist...Printed circuit board,
28...Inner lens, 3011...Aperture,
38... Thick part, 38a... Reflective surface. Patent applicant: Koito Seisakusho Co., Ltd. Agent: Masaki Yamakawa (and two others)

Claims (1)

[Claims] Openings are provided at the rear end surface and the rear end lower surface of a spoiler installed on the upper surface of the rear end of the vehicle body or the roof, and a large number of light emitting diodes are mounted at predetermined intervals in the width direction of the vehicle body. A lamp body consisting of a lamp body and a front lens is assembled into the opening of the spoiler, and the opening is closed by the front lens, and the front lens has a thick part on the lower surface that covers the lower part of the opening. The front surface of the thick part is continuous with the lower front surface of the front lens, and the bottom surface is inclined downwardly in the front to form a reflective surface that reflects light from the light emitting diode in front of the lens, and A vehicular lamp characterized in that the front end of the upper surface of the body projects outward from the opening by a required distance.