JP2001297607A - In-vehicle warning light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-vehicle warning light, preferably attached to the side surface of a car solves the problem where the life span is short caused by using a halogen lamp as a light source with flashing on and off in the conventional in-vehicle warning light and that solves the problem that the exchange of a light source bulbs is difficult, especially when it is used embedded in the side surface of the car. SOLUTION: As an in-vehicle warning light 1, a discharge bulb 6 having a longer life span compared with a halogen lamp as a light source is used to make its life span longer. Furthermore, as viewing the form of a reflection surface of a reflector 5 made from a synthetic resin, a parabolic surface 7 extending in the shape of a plurality of hyperbolas as seen head-on is arranged in concentric shape, so that a desired light distribution as an idiot lamp is obtained. This structure also enables to make the warning light thinner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicle warning light. More specifically, an object of the present invention is to provide an in-vehicle warning light suitable for being attached to a side surface of a vehicle.

[0002]

2. Description of the Related Art There is an on-vehicle warning light which is used by being embedded in a side surface of a fire engine or attached to a bumper of a police car.

[0003] Such a conventional in-vehicle warning light uses a halogen bulb as a light source and blinks the halogen bulb to produce a warning effect.

[0004]

The above-mentioned conventional on-vehicle warning lamp has a problem that its life is short because a halogen bulb is used as a light source and the bulb is used by blinking it. In particular, in the case where the light source bulb is used by being embedded in the side of the vehicle body, it is difficult to replace the light source bulb. Therefore, when the light source bulb is disconnected, the lamp itself must be completely replaced, which is extremely uneconomical.

Accordingly, an object of the present invention is to provide an on-vehicle warning light suitable for being mounted on a side surface of a vehicle.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicle warning light according to the present invention uses a discharge bulb as a light source.

Therefore, in the vehicle warning light of the present invention, since the discharge bulb having a longer life than the halogen bulb is used as the light source, the life of the vehicle warning light itself can be extended, and the side of the vehicle can be improved. It is suitable as an in-vehicle warning light to be attached to a vehicle.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle warning light according to an embodiment of the present invention.

The vehicle warning light 1 includes a lamp body 2, a transparent cover 3 attached to the lamp body 2 so as to cover a front opening of the lamp body 2, and a lamp room defined by the lamp body 2 and the transparent cover 3. The reflector 5 includes a reflector 5 and a discharge bulb 6 disposed at a predetermined position with respect to the reflector 5.

The transparent cover 3 is made of a transparent material, for example,
It is formed of a transparent synthetic resin, and is colored and transparent in a predetermined color, for example, red, blue, yellow, or the like according to the warning purpose of the on-vehicle warning light 1, and lens steps are formed on both inner and outer surfaces. Although it is not so-called a transparent cover, a desired lens step may be formed as needed.

The reflector 5 is made of a synthetic resin and, when viewed from the front, has a plurality of arc-shaped paraboloids 7, 7,.
Are arranged concentrically, and a reflection surface is formed on the front surface thereof by means such as aluminum evaporation. The focal points of the plurality of paraboloids 7, 7,... May be arranged at substantially the same position, or the focal points may be shifted as needed. These should be appropriately selected according to the desired light distribution.

The reflector 5 does not necessarily have to be formed by a plurality of paraboloids 7, 7,..., But may be formed by a single paraboloid or by a plane other than the paraboloid. Although it may be constituted, the reflection light can be controlled relatively easily by forming it with a paraboloid, and the reflector 5 can be formed by forming a plurality of paraboloids 7, 7,. , That is, the size in the front-rear direction can be reduced, and the on-vehicle warning light 1 can be made thinner. Since the discharge bulb 6 generates less heat when turned on than the halogen bulb, the distance between the discharge bulb 6 and the reflector 5 can be reduced, and the on-vehicle warning light 1 can be made thinner. it can.

A discharge bulb 6 is arranged at a predetermined position with respect to the reflector 5. The discharge bulb 6 is substantially rod-shaped, and electrodes 6a, 6a are disposed at both ends thereof. The electrodes 6a, 6a at both ends are supported by stays 8, 8 whose base ends are supported by the reflector 5. I have. by this,
The discharge bulb 6 is arranged in a posture perpendicular to the optical axis of the vehicle warning light 1. The stays 8 also serve as leads for connecting the discharge bulb 6 to an external blinking circuit.

As shown in FIG. 3, the on-vehicle warning light 1 is a vehicle, for example, a vehicle body side surface 9 of an emergency vehicle 9.
It is used by being embedded in a.

The above-mentioned warning lamp 1 has a longer life than a lamp using a halogen bulb because the discharge bulb 6 is used as a light source, and does not require replacement for a long time. Therefore, for example, it is very suitable as an in-vehicle warning light which is used by being embedded in a side surface of a vehicle body and in which replacement of a light source bulb is impossible or difficult.

It should be noted that the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of the specific embodiments to be carried out when carrying out the present invention. The scope should not be construed as limiting.

[0017]

As is apparent from the above description, the on-vehicle warning light of the present invention is a vehicular warning light mounted on the side of a vehicle, wherein a discharge bulb is used as a light source.

Therefore, in the on-vehicle warning lamp of the present invention, since the discharge bulb having a longer life than the halogen bulb is used as the light source, the life of the on-vehicle warning lamp itself can be extended. Therefore, for example, it is very suitable as an in-vehicle warning light which is used by being embedded in a side surface of a vehicle body and in which replacement of a light source bulb is impossible or difficult.

According to the second aspect of the present invention, the discharge bulb has a substantially rod shape and is supported at both ends so as to be in a posture perpendicular to the optical axis. There is no need to provide an insertion hole for inserting a light source bulb into the reflector, and the central part of the reflector having a high light flux utilization rate can be effectively used.

According to the third aspect of the present invention, a reflector is provided for reflecting the light of the discharge bulb substantially forward, and the reflector is formed by a plurality of paraboloids. The lamp can be made thinner. And, when the in-vehicle warning light is made thinner, the distance between the discharge bulb and the transparent cover or reflector becomes smaller,
Since the discharge bulb has a lower lighting temperature than the halogen bulb, there is no fear that the transparent cover or the reflector is deformed by the lighting heat of the discharge bulb.

[Brief description of the drawings]

FIG. 1 shows an embodiment of an on-vehicle warning light of the present invention, and FIG. 1 is a horizontal sectional view.

FIG. 2 is a front view in a state where a lens is removed.

FIG. 3 is a schematic perspective view showing a state of being attached to a side surface of a vehicle.

[Explanation of symbols]

1: on-vehicle warning light, 5: reflector, 6: discharge bulb, 7
… Paraboloid

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhisa Mochizuki 500 Kitawaki, Shimizu City, Shizuoka Prefecture Inside the Koito Manufacturing Shizuoka Plant (72) Inventor Seiji Harada 500 Kitawaki Shimizu, Shizuoka Prefecture Koito Manufacturing Shizuoka Plant F Terms (reference) 3K080 AB01 AB15 BA05 BB26 BC05

Claims (3)

[Claims] An on-vehicle warning light mounted on a side surface of a vehicle, wherein a discharge bulb is used as a light source. 2. The discharge bulb has a substantially rod shape.
The on-vehicle warning light according to claim 1, wherein the on-vehicle warning light is supported at both ends such that the posture is perpendicular to the optical axis. 3. The apparatus according to claim 1, further comprising a reflector for reflecting light of the discharge bulb substantially forward, wherein the reflector is formed by a plurality of paraboloids. Car warning light.