JPH0660910U - Indicator light - Google Patents

Abstract

(57) [Abstract] [Purpose] The battery used as the light source of the marker light does not need to be replaced and the power supply wiring is not required, and the recognition effect of the marker light is enhanced. [Structure] An LED 11 is arranged in a hollow columnar casing 2 having an illumination window 2a provided on its peripheral surface, and light emitted from the LED 11 is reflected by a reflector 8 toward the illumination window 2a. In addition, the casing 2 is used as a power source of the LED 11.
A storage battery 13 capable of storing electrical energy is provided by the solar cell 4 provided on the top surface of the. In the daytime, the electric energy generated by the solar cell 4 is stored in the storage battery 13, and at night, the LED 11 is caused to emit light by the stored electric energy for marking. This eliminates the need for battery replacement and power supply wiring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a marker light, and more particularly to a marker light that emits light at night so as to be recognized by a vehicle driver or the like.

[0002]

[Prior art]

 In general, gates in parks, parking lots, etc. are equipped with preventive pillars to prevent entry at night, but unless somebody recognizes the existence of these pillars, an automobile, etc. may collide with the preventive pillars and cause an accident. It may occur. In order to make such recognition, marker lights have been conventionally provided. For example, a lighting fixture is integrally attached to a part of the prevention pillar, and the presence of the prevention pillar is recognized by lighting a light bulb provided in the lighting fixture. In this case, a light emitting diode (hereinafter, referred to as an LED) may be used instead of the light bulb, and a battery or a commercial power source is used as a power source.

[0003]

[Problems to be solved by the device]

 When using a primary battery as the power source, such a conventional indicator light consumes a large amount of current and shortens the life of the battery when attempting to increase the brightness of the light emission to increase the degree of labeling. There is a need to. Further, if the light emission brightness is lowered to prolong the battery life, the recognition effect of the sign is lowered. On the other hand, when a commercial power source is used, such a problem does not occur, but it is necessary to wire between the commercial power source and the indicator light so that the power cord is not exposed, which complicates the facility and increases the facility cost. become. In particular, when applied to a road guardrail sign, an extremely large number of sign lights are required, which makes the wiring extremely long and difficult to install, and the above-mentioned power consumption is enormous. It will be It is also necessary to take safety measures such as leakage. An object of the present invention is to provide a marker lamp which has a high recognition effect without requiring battery replacement and power supply wiring.

[0004]

[Means for Solving the Problems]

 The present invention is provided with a hollow columnar casing having an illumination window on its peripheral surface, a light source disposed in this casing for projecting the emitted light toward the illumination window, and a top surface portion of the casing. And a storage battery that stores the electrical energy generated by the solar cell and causes the light source to emit light. Further, a plurality of LEDs having different directivities may be provided as the light source, and the light emitted by each LED may be emitted toward the illumination windows in different circumferential directions.

[0005]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a first embodiment of the present invention, FIGS. 2 (a) and 2 (b) are a longitudinal sectional view and a sectional view taken along the line AA, and FIG. 3 is a partially exploded perspective view of a main part. Is. Here, an example is shown in which a marker light is installed in a vehicle stop pole that is always installed at the entrance of a park. In these figures, at least the upper part of the column 1 is formed as a hollow cylinder, and its upper part is opened. Then, a short cylindrical casing 2 having the same diameter as the pillar is fitted in this opening. This casing 2 has elliptical illumination windows 2a equally arranged at a plurality of locations (here, six locations), and lenses 3 are attached to each illumination window 2a. The lens 3 is set to, for example, red or amber, or green or the like for safety so that the lighting is easily noticeable at night. In the daytime, the front surface or the back surface is diffused through the lens 3 so that the inside of the casing 2 is difficult to see. A square recess 2b is formed on the upper bottom surface of the casing 2, and a solar cell 4 that generates electromotive force due to sunlight and a switch operation is performed in the recess 2b when the ambient brightness falls below a predetermined level. A photosensitive sensor 5 is provided. The solar cell 4 is covered with a resin cover 4a. A protective transparent plate 6 such as tempered glass is attached to the opening of the recess 4b.

On the other hand, a boss 2c is provided so as to project downward at the center of the inner surface of the upper bottom surface of the casing 2, and a reflector 7 is fixed to the lower end of the boss 2c by a screw 7. The reflector 8 is formed by hexagonally arranging six reflecting cylinders 8a each having a substantially rectangular trumpet shape so as to face the illumination window, and the inner surface of each reflecting cylinder 8a is diffused and reflected. A diffusion plate 9 having a hexagonal tube shape is disposed on the opening of the surface-treated surface. A substrate 10 is attached to the lower side of the reflection plate 8, and a plurality of LEDs 11 supported by the substrate 10 are arranged inside each of the reflection tubes 8a. The light emitted from each LED 11 is reflected in the horizontal direction by the diffuse reflection surface of the reflecting cylinder 8a, passes through the diffuser plate 9 and is projected to the outside through the lens 3 of the illumination window 2a. There is. The substrate 10 is electrically connected to the main circuit substrate 12 based on the solar cell 4 and the photosensitive sensor 5, and the main circuit substrate 12 is connected to a storage battery 13 for charging.

According to the marker lamp of this configuration, the storage battery 13 is charged in the daytime by the electric energy generated by the electromotive force of the solar cell 4 using sunlight. When the surroundings become dark like at night, the photosensor 5 is turned on, and the LED 11 and the storage battery 13 are electrically connected. As a result, the LED 11 is caused to emit light by the electric energy charged in the storage battery 13, and the generated light is diffused and reflected in the horizontal direction on the inner surface of the reflecting cylinder 8a, and further uniformized through the diffuser plate 9. It is projected to the outside of the casing 2 through the glass 3 of the illumination window 2a. Therefore, when the marker lights are viewed from the outside, the peripheral surface of the upper part of the car stop support is illuminated brightly in a scattered manner, and the existence of the support is recognized. Therefore, since this sign light uses a storage battery that uses sunlight to store electrical energy as the power source, the battery can be used for a semi-permanent life, saving the labor of battery replacement and reducing battery cost. Can be reduced. In addition, the wiring for using the commercial power supply is not required, the equipment for it can be omitted, and the equipment cost is low. Moreover, since one LED is arranged corresponding to each of the plurality of illumination windows, sufficient brightness can be obtained and a highly recognizable sign can be provided.

FIGS. 4A and 4B are a vertical sectional view and a sectional view taken along line BB of the second embodiment of the present invention. Only the light emitting portion is shown here, and the same parts as those in the first embodiment are designated by the same reference numerals. In this embodiment, a window 2Aa is opened on the entire surface around the casing 2A, and a cylindrical lens 3A is attached to the window 2Aa. Further, the reflector 8A provided inside the casing 2A is formed by a pair of discs 8Aa and 8Ab which are vertically spaced apart from each other, and both are integrated by a cylindrical diffusion plate 9A, and the upper disc 8Aa is It is fixed to the casing 2A. In addition, by disposing one LED 14 at the center of the reflector 8A and forming the upper disk 8Aa in an inverted conical shape, the light emitted from the LED 14 is horizontally 360 ° by the reflector 8A. Reflects uniformly in the direction.

When the light source is composed of one LED 14 as in this embodiment, as shown in FIG. 5, a conical reflecting surface 15a is formed in the lens 15 in which the LED element 16 is embedded. An LED having a structure in which the light emitted from the LED element 16 is reflected in the horizontal 360 ° direction by the reflecting surface 15a is adopted. Although not shown, when the light source is composed of a plurality of LEDs, the LEDs are radially arranged so that the light from each LED is uniformly irradiated in the circumferential direction. Further, while the solar cell 4 is arranged in the recess 2b provided on the upper bottom surface of the casing 2, a hemispherical lens 6A is placed on the solar cell 4, thereby also protecting the solar cell. As described above, by forming the lens 6A in a hemispherical shape, the sunlight can be efficiently condensed on the solar cell 4, the electric energy generated in the solar cell can be increased, and the charging efficiency of the storage battery can be improved. it can. It should be noted that no photo sensor is provided here, and the circuit is configured to detect the electromotive force of the solar cell and electrically control the circuit on / off. In this embodiment as well, similar to the first embodiment, it can be constructed as a semi-permanent life indicating lamp. Further, in this embodiment, since there is only one LED as a light source, it is possible to further reduce the cost.

FIGS. 6A and 6B are a longitudinal sectional view and a sectional view taken along the line CC of the third embodiment of the present invention. Here, there is provided a reflector 8B composed of a pair of upper and lower discs 8Ba and 8Bb, and these discs 8Ba and 8Bb are integrated by a cylindrical lens 3B in the peripheral portion thereof. The reflector 8B is configured to be sandwiched between a column (not shown) and a casing, and a cylindrical diffuser plate 9B is coaxially arranged inside the reflector 8B. Through holes 9Ba are provided at a plurality of positions on the peripheral surface of the diffusion plate 9B, and the LEDs 17 as light sources are attached to the inside of the through holes 9Ba so as to face inward. In this case, each LED 17 is arranged with its optical axis shifted in one direction with respect to the center of the diffuser plate 9B. The diffusing plate 9B may be a prism. According to this configuration, the light emitted by each LED 17 is passed through the cylindrical diffusion plate 9B from the inside to the outside, but at this time, the light is diffused and reaches the lens 3B, so that the lens 3B It is possible to illuminate the window uniformly and illuminate the illumination window with uniform brightness.

Here, in the above-mentioned marker lamp of the second embodiment, when the light source is composed of a plurality of LEDs, it may be structured as shown in FIG. 7 (a). In this marker lamp, a plurality of LEDs 11a to 11c, here, three LEDs 11a to 11c are arranged outward only on one side in the circumferential direction in the casing, and each LED 11a to 11c has a narrow directivity S and a wide directivity. It is composed of L and directivity M in the middle thereof. It should be noted that although the same parts as those in FIG. 4 are denoted by the same reference numerals, no reflector or diffuser is used here. As a result, when viewed as a whole of the marker light, the directivity in the plane direction is biased in a specific direction. In this case, since the brightness is concentrated in the narrow directivity S, the degree of recognition from a distance is increased in that direction as compared with the wide directivity. On the contrary, when the directivity L is wide, the degree of recognition from a distance is low, but when approaching, the degree of recognition in a wide range is increased.

As shown in FIG. 7B, for example, the marker lights thus configured are arranged as shoulder marker lights I1, I2, I3 of the road R along the shoulders at appropriate intervals, and each marker light I 1, I2 and I3 are oriented so that the narrow directivity S is directed substantially tangentially to the road R and the wide directivity L is directed to the widthwise direction of the road R. In this figure, the state near the entrance of the curve where the vehicle C enters is shown. As a result, in the curve entrance area, the vehicle C traveling on the curve can recognize the marker lights I1, I2, I3 from a distance by illuminating the narrow directivity S of the LEDs and confirm the road shoulder. After entering a curve, it is possible to check the lateral shoulders of the vehicle in a wide range by illuminating the directivity M in the middle of the LED and the wide directivity L, which is effective for safe driving. Become.

Of course, by changing the directivity of each LED, it is possible to construct a marker light with various directivities, and it can be used as a marker light in various places such as near the exit of a curve or a straight road. Becomes In addition, although an example of irradiating light to a part of the circumferential direction is shown here, in the case of a marker lamp that irradiates light over 360 °, various directions can be set by arbitrarily setting its directivity. It can be used as a marker light for the purpose of. If the directivity of one LED can be freely designed, for example, the LED is designed to have a directivity close to the directivity of FIG. 7A, and this LED is used in the second embodiment. If it is used as a light source for a marker light using a single LED as described above, it can be similarly used as a road shoulder marker light.

[0014]

[Effect of device]

 As described above, according to the present invention, the electric energy of the solar cell is stored to cause the light source to emit light, and the light is used to illuminate the illumination window provided on the peripheral surface of the casing. Electric energy is stored by using this electric energy and the indicator light is turned on by using this electric energy at night, so there is no need to replace the battery due to exhaustion of the battery, and wiring that is required when using a commercial power source is no longer necessary. A beacon light can be constructed. In addition, the directionality of multiple LEDs used as a light source can be appropriately changed to obtain a sign of any directionality. For example, when used as a guide rail marker light, it is effective for safe driving. There is also an effect that various labeling can be performed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a first embodiment of a marker lamp of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of FIG. 1 and a sectional view taken along line AA thereof.

FIG. 3 is a partially exploded perspective view of a main part of the marker lamp of the first embodiment.

FIG. 4 is a vertical cross-sectional view of a main part of a second embodiment of the present invention and a cross-sectional view taken along line BB thereof.

FIG. 5 is a cross-sectional view showing the internal structure of an LED in the second embodiment.

FIG. 6 is a vertical cross-sectional view of a main part of a third embodiment of the present invention and a cross-sectional view taken along the line CC.

FIG. 7 is a diagram showing the directivity in the plane direction of a marker lamp to which the present invention is applied and the operation when the marker lamp is applied to a guide rail marker lamp.

[Explanation of symbols]

 1 Support 2 Casing 2a Illumination Window 3 Lens 4 Solar Cell 5 Photosensitive Sensor 6 Lens 8 Reflector 9 Diffuser 11 LED 13 Storage Battery

Claims (2)

[Scope of utility model registration request] 1. A hollow columnar casing provided with an illumination window on a peripheral surface thereof, a light source disposed in the casing for projecting emitted light toward the illumination window, and a top surface portion of the casing. A marker lamp comprising: a provided solar cell; and a storage battery that stores electric energy generated by the solar cell and causes the light source to emit light. 2. A plurality of LEs having different directivities as light sources
The marker lamp according to claim 1, further comprising D, wherein the light emitted by each LED is emitted toward different illumination windows in the circumferential direction.