JPH0463481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a light emitting display device in which a plurality of band-like members are attached to a light beam output portion of a concave mirror.

(B) Prior Art Conventionally, there is a light emitting display device in which a light emitter and a concave mirror are combined, as described in Japanese Patent Publication No. 49-9280.

This conventional device consists only of a reflecting mirror (concave mirror) and a rotating light (light emitter) provided on the side of the reflecting mirror where the reflective surface is formed. No protective measures or light shielding were provided.

Further, as a vehicle lamp equipped with a louver, one described in Japanese Utility Model Application Publication No. 59-95516 has been proposed.

Although this conventional device is equipped with a louver, the louver is firmly fixed to the lamp housing by the outer lens and is not removable.

(c) Problems to be Solved by the Invention As mentioned above, the conventional technology had the following problems because it did not provide a protection means or a light shielding means for the light emitting device.

That is, if the device is tipped forward,
There was a risk of damaging the rotating lights and reflectors, but since the rotating lights and reflectors used here are expensive, a large amount of repair costs would be required if they were to fall over. Therefore, although various measures have been taken to prevent this device from tipping over, such as its leg members, etc., this device is generally installed on roads or other high-traffic areas, so tipping accidents are unavoidable. It was hot.

Furthermore, during the daytime, sunlight shines on the rotating light and the reflecting surface of the reflector, and the reflected light may reduce the display effect of the rotating light.

Furthermore, since the rotating light is generally fixed at the focal point of the reflecting mirror, the sunlight shining on the reflecting mirror is convergently irradiated onto the rotating light by the reflecting mirror.
This could also cause thermal damage to the rotating light's plastic globe.

Furthermore, the louver is controlled by the outer lens,
If the lamp housing is firmly fixed to the lamp housing, even if the louver or the like is damaged due to the device falling over, it is impossible to quickly replace it. In addition, at night, etc.
The louver will partially block the light rays emitted from the emitter. Since a particularly noticeable display effect is required at night, it is originally desirable that the louver does not exist, but in the conventional device, the louver is not removable, so it is necessary to detach it from the reflector even at night. was virtually impossible.

The present invention has been made in view of the drawbacks of the conventional technology, and it is possible to prevent damage to the reflecting mirror and rotating light even if the device falls over, and to reduce the amount of sunlight irradiated to the reflecting mirror. Furthermore, by removably attaching a hood to which the strip member is fixed to the mouth edge of the concave mirror, the strip member can be easily attached, detached, and replaced.

(d) Means for Solving the Problems In the present invention, a light emitter is provided on the side of the concave mirror on which the reflective surface is formed, and a light emitting device for emitting reflected light from the reflective surface is provided on the outside of the light emitter. A light emitting display device in which a plurality of strip members having a width in a direction are attached, wherein a hood is detachably attached to the mouth edge of the concave mirror, and the strip member is fixed to the hood. That is.

(E) Effect When the light emitter according to the present invention is operated, the light rays from the light emitter are reflected by the concave mirror, and the reflected light passes through the gap between the strip members and is irradiated forward. However, the sunlight irradiated from above is blocked by the strip member and does not reach the reflective surface of the concave mirror.

Further, when attaching and detaching the band member, the attachment and detachment work can be easily carried out by attaching and detaching the hood together with the hood.

(F) Embodiment FIGS. 1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a vertical sectional view of a concave mirror, and FIG. FIG. 3 is a longitudinal cross-sectional view of the light emitter section.

In these figures, a rotating light 2 serving as a light emitter is inserted horizontally through a parabolic concave mirror with a diameter of approximately 50 cm. Note that the rotational axis of the rotary lamp 2 and the center line of the concave mirror 1 (the normal line of the center portion) coincide with each other. The rotating light 2 is of a type in which a pair of parabolic mirrors of revolution 4 revolves around a luminous bulb 3, but it is of a so-called sealed beam type in which the parabolic mirror of revolution and the luminous bulb rotate as one. It may also be a rotating light.

Reference numeral 5 denotes a telescopic leg member for supporting the base of the rotating light 2, but it may be of a so-called tripod type.

6 is a metal band-shaped member provided in the opening for guiding the light beam reflected by the concave mirror 1, and is detachably attached to the mouth edge of the concave mirror 1 so as to fit from the outside. It is fixedly attached to the hood 7. Note that the hood 7 may be fixed to the mouth edge of the concave mirror 1 with a screw. The strip member 6 has a width (5 cm) in the radial direction of the light beam emitted from the rotating light 2 (see the two-dot chain line in FIG. 3), and a length in the horizontal direction at right angles to this width direction. have Note that the thickness is approximately 1 mm.
Furthermore, although the distance between the strip members 6 is approximately 6 cm in this embodiment, it is possible to further narrow the distance by increasing the number of strip members 6 attached.

Reference numeral 8 denotes a reflector plate attached to a portion of the band-shaped member 6 corresponding to the rotary light 2, which is a so-called generator having countless fine irregularities formed on its surface. Note that 9 is a small-diameter reflector plate attached to the rear end surface of the rotating light 2.

In addition, a through hole 10 is provided in the lower reflective surface of the concave mirror 1.
A part of the light rays emitted from the rotating light 2 is guided downward (to the foot of the leg member 5).
This will illuminate the installation location of the device.

In this embodiment, even if the sunlight (see the slanted two-dot chain line in Fig. 2) is irradiated from diagonally above,
Since most of the light rays are blocked by the strip members 6 and the reflecting plate 8, the light rays are not convergently irradiated onto the rotating lamp 2.

In addition, light rays emitted horizontally from the outside, such as light rays from a car headlamp, are directly reflected by the reflector 8, so even if the rotating light 2 is not operating at night, the car driver can etc. can be made aware of the existence of this device.

Next, the mounting structure of the rotating light 2 to the concave mirror 1 will be explained mainly with reference to FIG. 4.

A through hole 11 with a diameter larger than the diameter of the rotating lamp 2 is bored in the center of the concave mirror 1, and a holding cylinder 13 having a U-shaped cross section and a collar 12 is welded to the back of the through hole 11. , this holding cylinder 13 is attached to the leg member 5
is welded to the top of the And this holding cylinder 1
The rotating light 2 is fixed to the inner bottom of the rotary lamp 3 with screws 14, 14. In addition, a plurality of ventilation holes 15 are bored in the circumferential side and bottom of the holding cylinder 13.

Therefore, the air flowing in from the front side of the concave mirror 1 flows through the gap 16 formed between the inner edge of the through hole 11 of the concave mirror 1 and the outer surface of the rotating light 2, as shown by the solid line arrow in FIG. , and the ventilation hole 15...
It passes through and is exhausted to the rear side.

The rotating light 2 is cooled by the air flowing around the rotating light 2. Furthermore, the wind pressure applied to the concave mirror 1 is reduced, making it difficult for the device to fall over.

5 and 6 are front views showing a different aspect only in the band-like members 6 of the above-mentioned embodiment. The band-like members 6 shown in FIG. The members 6 are radial, and each of these strip members 6 has a width in the radial direction of the light beam.

In addition, although the rotating light 2 is used as a light emitting device in the above embodiment, the rotating light 2 does not necessarily have to be used. For example, even a flashing light or, in some cases, a constantly lit lamp may be of sufficient practical use.

Furthermore, although the number of through holes 10 drilled in the reflective surface of the concave mirror 1 is not necessarily required, two or more may be drilled therein.

(g) Effects of the Invention In the present invention, since a plurality of band-like members having widths in the radiation direction of the light rays emitted from the light emitter are attached, the reflecting surface of the concave mirror and the light emitter are mechanically protected. There is no risk of damage even if the device falls over.

Furthermore, since the strip and the reflector serve to block sunlight, there is no risk of thermal damage to the plastic globe of the light emitter.

Furthermore, since the hood is removably attached to the mouth edge of the concave mirror, and the strip member is fixed to the hood, the strip member is attached to the concave mirror only when necessary, such as during the daytime, and when it is not needed, such as at night. Sometimes it can be easily separated from the concave mirror.

Therefore, at night or the like, the light rays emitted from the light emitter are not blocked by the strip member, and the display effect is not diminished by the strip member.

Furthermore, since the strip member is removably attached to the concave mirror, strip members of various shapes can be attached to the concave mirror as needed.

Furthermore, since the hood is attached to the concave mirror, the hood protects the edge of the concave mirror, and even if the light emitting display device falls over, the hood and the strip member will only be damaged. You can easily restore it to its original state by replacing only the part.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a longitudinal sectional view of the concave mirror section, and FIG. 4 is a longitudinal sectional view of the light emitter section. FIG. Moreover, FIGS. 5 and 6 are front views showing main parts of other embodiments. 1... Concave mirror, 2... Rotating light (light emitter), 6...
...Band-shaped member, 7...Hood, 8...Reflector, 10
...Through hole, 11...Through hole, 15...Vent hole, 1
6...Void.

Claims (1)

[Scope of Claims] 1. A light emitter is provided on the side of the concave mirror where the reflective surface is formed, and a plurality of sheets having a width in the radiation direction of the reflected light from the reflective surface are provided outside the light emitter. A light emitting display device equipped with a strip member, characterized in that a hood is detachably attached to the edge of the concave mirror, and the strip member is fixed to the hood.