JPH1031905A - Marker lamp for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the visibility from a driver seat and facilitate checking of the position of one's own car. SOLUTION: A lamp element 4 is formed from a lamp body 2 and a front face lens 3, and a reflector 11 of cylindrical form is installed in the lamp element 4, and LEDs 5 are installed inside and outside the reflector. A conical part 11A spreading outward is provided extendedly at the foremost of the reflector 11 in a single piece structure. The light emited from the LED 5 located outside the reflector 11 runs against the peripheral surface of its conical part 11A and is reflected in the direction perpendicular to the axis of the lamp so as to irradiate it laterally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marker lamp for a vehicle which is mounted on a side surface of a truck body.

[0002]

2. Description of the Related Art Conventionally, in a large vehicle such as a truck, a plurality of marker lamps 1 are mounted on the side surface of a vehicle body as shown in FIGS. 7 and 8, and these lamps 1 are turned on at night. This makes it easier for the driver to check the position of the vehicle and prevents side collisions. Such a marker lamp 1 generally comprises a lamp body 4 composed of a lamp body 2 and a front lens 3, and a light emitting diode (hereinafter, referred to as an LED) 5 or an incandescent light bulb as a light source therein. . The LED 5 has a feature that the brightness is higher and the life is longer than that of the incandescent lamp.

[0003]

SUMMARY OF THE INVENTION However, LEDs
The conventional marker lamp 1 using the light source 5 as a light source has a problem in visibility from the driver's seat. That is, since the LED 5 has higher directivity of light emission output than the incandescent light bulb, has high luminance around the optical axis, and has extremely low luminance in a direction orthogonal to the optical axis, it irradiates well in front of the lamp. Is not always good, so that it is difficult to see the marker lamp 1 from the driver's seat and to confirm the side of the own vehicle.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to improve visibility from a driver's seat and to easily confirm a side portion of a vehicle. It is an object of the present invention to provide a vehicle marker lamp.

[0005]

In order to achieve the above object, the present invention relates to a marker lamp for a vehicle mounted on a side surface of a vehicle body, wherein a lamp body is constituted by a lamp body and a front lens. And a reflector for guiding the light of the light emitting diode, which is located inside, out of the light emitting diodes, and reflecting the light of the light emitting diode, which is located outside, radially outward. It is characterized by having been established. Further, in the present invention, the reflector is formed in a cylindrical shape, and is provided with a conical portion extending outward at the tip end side.
Further, in the present invention, the reflector is characterized in that it is formed in a frusto-conical shape in which a front end side extends outward. Further, in the present invention, the front lens has a substantially trapezoidal cross-sectional shape, and a large number of small convex lenses are formed on the inner surface of the front portion facing the reflector. It is characterized by being formed. Further, the present invention is characterized in that the reflector is formed of a transparent synthetic resin, and a reflection film is formed on one of the inner and outer peripheral surfaces.

In the present invention, the outer peripheral surface of the reflector is
The light of the light emitting diode arranged on the outside is reflected radially outward, and the inner peripheral surface reflects the light emitted from the light emitting diode arranged on the inside forward. The convex lens diffuses the light from the light emitting diode so that the inside of the lamp body cannot be seen from the outside. The cylindrical lens diffuses light from the light emitting diode in a direction perpendicular to the axis. Since the reflector is made of transparent synthetic resin,
By forming a reflective film only on one of the outer peripheral surfaces, the inner and outer peripheral surfaces can be used as reflective surfaces.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a sectional view showing an embodiment of a vehicle marker lamp according to the present invention. Note that the same components as those shown in the section of the prior art are denoted by the same reference numerals. The marker lamp 10 attached to the side surface of a vehicle body such as a truck has a lamp body 4.
It has. The lamp body 4 is composed of a lamp body 2 formed in a disc shape by a synthetic resin or the like, and a front lens 3 covering the front surface of the lamp body 2, and a plurality of L's therein.
The ED 5 and the reflector 11 are housed.

The front lens 3 has a substantially trapezoidal cross section made of glass, translucent synthetic resin, or the like, so as to surround the front part 3 a substantially parallel to the lamp body 2 and the periphery of the reflector 11. Consisting of a peripheral wall 3b,
A diffusion lens 12 composed of a large number of small convex lenses is formed on the inner surface of the front portion 3a, and a cylindrical lens 13 that is long in the axial direction of the front lens 3 is formed on the entire inner surface of the peripheral wall portion 3b.

The LED 5 includes one on the inside of the reflector 11 and six on the outer side at equal intervals in the circumferential direction on the surface of the printed wiring board 14 so that the optical axis is parallel to the axis of the lamp, for a total of seven LEDs. One has been implemented. Printed wiring board 14
Is fixed to a fixing portion 15 provided on the surface of the lamp body 2 with a set screw, an adhesive or the like, and is connected to a cord 16.

The reflector 11 is formed of a transparent synthetic resin into a cylindrical shape, and the outer peripheral surface and the inner peripheral surface thereof form a reflection surface by a reflection treatment such as painting. in this case,
Since the reflector 11 is formed of a transparent synthetic resin, the reflection processing may be performed only on one of the outer peripheral surface and the inner peripheral surface. On the front end side of the reflector 11, an outwardly extending conical portion 11A is integrally extended, and the outer peripheral surface of the conical portion 11A causes the light of the LED 5 disposed outside to extend in a direction orthogonal to the axial direction. I make it reflect. The reflector 11 is not limited to a cylindrical shape having the conical portion 11A, but may be a frusto-conical shape with the distal end side spreading outward as shown in FIG. Such a reflector 11 is fixed to the center of the printed wiring board 14.

The reflector 11 is not limited to a transparent synthetic resin, but may be made of a white synthetic resin. In that case, reflection processing is performed only on the outer peripheral surface. Such a reflector 11 made of a white synthetic resin can be manufactured at a lower cost than a transparent synthetic resin, and has the advantage that the interior of the lamp looks bright when not lit.

A marker lamp 1 having such a structure.
0, when all the LEDs 5 are turned on by turning on the switches, the LE 11 disposed inside the reflector 11 is turned on.
Part of the light emitted from D5 becomes direct light,
2 is directly radiated and transmitted through the front part 3a of the front lens 3,
After a part of the light hits the inner surface of the reflector 11 and is reflected, the light is irradiated on the diffusion lens 12 and transmitted through the front surface 3a of the front lens 3, thereby irradiating the front of the marker lamp 10 (to the side of the vehicle body). Most of the light emitted from the LED 5 disposed outside the reflector 11 is reflected by the reflector 1.
The light impinges on one conical portion 11A and is reflected. This reflected light is reflected radially outward of the reflector 11. The reflected light illuminates the cylindrical lens 13 and passes through the peripheral wall 3b of the front lens 3 to illuminate the area around the marker lamp 10. Therefore, the LED 5 itself irradiates the periphery of the lamp well even if the directivity of the light emission output is strong, so that the driver can easily see the side of the vehicle from the driver's seat and the visibility can be improved.

Further, since the diffusion lens 12 and the cylindrical lens 13 are formed on the inner surface of the front surface 3a of the front lens 3 and the inner surface of the peripheral wall 3b, the light of the LED 5 is diffused by these. Can be improved. Further, since the diffusion lens 12 and the cylindrical lens 13 are provided, the inside of the lamp body 4 is not seen from the outside.

FIG. 3 is a partially cutaway plan view showing another embodiment of the present invention, FIG. 4 is a sectional view taken along line IV-IV of FIG.
FIG. 5 is a cross-sectional view taken along line VV of FIG. 3, and FIG.
It is a line sectional view. In these figures, the lamp body 2 and the front lens 3 are fixed together with a vehicle body 21 such as a truck by two mounting screws 20. On the outer peripheral surface of the front lens 3, two U-shaped grooves 22 long in the axial direction are provided.
It is formed at an interval of 0 °, and a screw mounting hole through which the mounting screw 20 is inserted is formed at the bottom thereof. Two holding members 24 for holding a part of the outer peripheral surface of the reflector 11 are fixed to the printed wiring board 14 by set screws 25 so as to face each other. Other configurations are the same as those of the embodiment shown in FIG. In such a structure, the same effect as in the above-described embodiment can be obtained.

[0015]

As described above, the vehicular marker lamp according to the present invention is a vehicular marker lamp mounted on the side surface of a vehicle body, wherein a lamp body is constituted by a lamp body and a front lens. And a reflector for guiding the light of the light emitting diode, which is located inside, out of the light emitting diodes, and reflecting the light of the light emitting diode, which is located outside, radially outward. Since it is provided, it is easy to check the side of the vehicle from the driver's seat at night, the visibility is improved, and a side collision can be prevented.

Further, according to the present invention, since the reflector is formed in a cylindrical shape and a conical portion extending outward at the distal end thereof is integrally formed, or the reflector is formed in a truncated conical shape extending outward at the distal end, the light emitting diode is provided. The light emitted from the lamp can be effectively reflected to the side of the lamp, and the periphery of the lamp can be brightly illuminated. Further, in the present invention, the cross-sectional shape of the front lens is substantially trapezoidal, a large number of small convex lenses are formed on the inner surface of the front portion facing the reflector, and the inner peripheral surface of the peripheral wall surrounding the reflector is long in the axial direction of the lamp body. Since the cylindrical lens is formed, the illumination effect of the lamp can be improved, and the inside of the lamp body can be prevented from being visually recognized from the outside. Further, in the present invention, since the reflector is formed of a transparent synthetic resin, only forming a reflective film on only one of the inner and outer peripheral surfaces,
The inner and outer peripheral surfaces can be used as reflection surfaces. In addition, since the reflector is formed of a white synthetic resin, the reflector can be manufactured at low cost, and the interior of the lamp looks bright when not lit.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a vehicle marker lamp according to the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the reflector.

FIG. 3 is a plan view showing a part of another embodiment of the present invention in a cutaway manner.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 3;

FIGS. 7A and 7B are a plan view and a side view of a track provided with a marker lamp.

FIG. 8 is a sectional view showing a conventional example of a marker lamp.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Marker lamp, 2 ... Lamp body, 3 ... Front lens, 4 ... Lamp body, 5 ... LED, 11 ... Reflector, 11A
... A conical part, 12 a diffusion lens, 13 a cylindrical lens, 4 a printed wiring board.

Claims (6)

[Claims] 1. A vehicle marker lamp mounted on a side of a vehicle body, wherein a lamp body is constituted by a lamp body and a front lens, and a plurality of light emitting diodes are provided in the lamp body.
Among these light emitting diodes, a reflector that guides light of the light emitting diode located inside and forwardly reflects the light of the light emitting diode located outside and radially outward is provided. Marker lamp for vehicles. 2. The vehicle marker lamp according to claim 1, wherein the reflector is formed in a cylindrical shape, and is integrally provided with a conical portion extending outward at a tip end side. 3. The vehicle marker lamp according to claim 1, wherein the reflector is formed in a frusto-conical shape with the front end side extending outward. 4. The vehicle marker lamp according to claim 1, wherein the front lens has a substantially trapezoidal cross-sectional shape, and a number of small convex lenses are formed on the inner surface of the front portion facing the reflector to surround the reflector. A marker lamp for a vehicle, wherein a cylindrical lens long in an axial direction is formed on an inner peripheral surface of a peripheral wall portion. 5. The vehicle marker lamp according to claim 1, wherein the reflector is formed of a transparent synthetic resin, and a reflection film is formed on one of the inner and outer peripheral surfaces. Vehicle marker lamp. 6. The vehicle marker lamp according to claim 1, wherein the reflector is formed of a white synthetic resin and a reflection film is formed on an outer peripheral surface.