Self-luminous delineator

Abstract

To provide a self-luminous delineator capable of securing the visibility of LED light emission without unnecessarily increasing LED rows even when snow accretion occurs on the outer peripheral surface of a transparent cylindrical pipe.SOLUTION: A self-luminous delineator 1 has an LED row 3 in which a plurality of LEDs 31 is vertically arranged in a row in a transparent cylindrical pipe 2. The LED rows 3 are located on each side of the transparent cylindrical pipe 2 at a distance of at least a straight line distance S with a center angle of 40° with respect to the outer peripheral surface thereof. Alternatively, the LED rows 3 are arranged on each of the right and left sides where the distances L in the diametrical direction are 0.35D or more when the diameters of the outer peripheral surfaces of the transparent cylindrical pipes 2 are defined as D.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a self-luminous delineator that can ensure visibility of its emitted light even when snow accumulates during a snowstorm. [Background technology]

[0002] A self-luminous delineator is a device that is installed in the median strip or road shoulder of a road to guide the driver's gaze by emitting light. A conventional self-luminous delineator is a transparent cylindrical pipe that is erected with its vertical length in the up-down direction, and an LED row in which multiple LEDs are arranged vertically inside the transparent cylindrical pipe (Patent Document 1). With this self-luminous delineator, the light emitted by the LED row appears as a single bright vertical light, and it is possible to guide the driver's gaze from a distance even at night, during rain, or during snowfall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3179145 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when snow accumulates on the outer circumferential surface of the transparent cylindrical pipe during a snowstorm, the snow may block the light emitted by the LED row. That is, snow accumulates on the outer circumferential surface of the exterior transparent cylindrical pipe on the side where snow is blown by the snowstorm, in both the up and down directions. If the LED row is covered by snow accumulation on the outer circumferential surface of the transparent cylindrical pipe, the visibility of the light emitted by the LED row is significantly reduced or the light emission becomes invisible to the vehicle driver. Therefore, as a countermeasure against snow accumulation during a snowstorm, for example, it is conceivable to increase the number of LED rows and arrange multiple LED rows in the circumferential direction of the transparent cylindrical pipe to ensure that the LED row is not hidden by snow accumulation. However, since the number of LED rows is unnecessarily increased, there are disadvantages such as an increase in initial costs and an increase in power consumption.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide a self-illuminating delineator that can ensure the visibility of LED light without unnecessarily increasing the number of LED rows, even if snow accumulates on the outer surface of the transparent cylindrical pipe. [Means for solving the problem]

[0006] The self-illuminating delineator according to the present invention comprises: A self-illuminating delineator that is installed on the median strip or shoulder of a road and emits light to guide the driver's gaze, A vertically long transparent cylindrical pipe that is vertically arranged, an LED row provided in a transparent cylindrical pipe and including a plurality of LEDs arranged in a vertical row; The LED row is arranged so that the light emitted from each LED is directed forward.

[0007] The first aspect of the self-luminous delineator is as follows: When the transparent cylindrical pipe is viewed from the front in the direction of LED light emission, the midpoint is the projection position of the central axis of the transparent cylindrical pipe, and the LED rows are arranged on each side, separated by a straight-line distance of a central angle of 40° or more from the outer peripheral surface of the transparent cylindrical pipe.

[0008] A second aspect of the self-luminous delineator is as follows: When the transparent cylindrical pipe is viewed from the front in the direction of LED light emission, the midpoint is the projection position of the central axis of the transparent cylindrical pipe, and the diameter of the outer circumferential surface of the transparent cylindrical pipe is D, and the LED rows are arranged on each side, separated in diameter by a distance of 0.35D or more. Effect of the Invention

[0009] According to the self-luminous delineator of the present invention, the LED rows can be appropriately arranged on both sides at a distance greater than the snow accumulation width that would block the light emission of the LEDs against snow accumulation on the outer peripheral surface of the transparent cylindrical pipe during a snowstorm. Therefore, even if snow accumulates on the outer peripheral surface of the transparent cylindrical pipe in the vertical direction due to a snowstorm, the LED rows on both sides do not block the light emission of the LEDs due to snow accumulation, and the visibility of the light emission from at least one side of the LED row is ensured, and the delineator can be effective. Furthermore, since the LED rows only need to be arranged on at least the left and right sides, the number of LED rows can be kept to a minimum necessary number, thereby suppressing an increase in initial costs and an increase in power consumption. Therefore, the delineator can be effective even during a snowstorm, and can guide the line of sight of the vehicle driver. On the other hand, by arranging the LED rows on both sides with a wider interval, the light of the two LED rows appears to spread out more horizontally, and the visibility of the vehicle driver on a curved road can be improved, for example. [Brief description of the drawings]

[0010] [Figure 1] 1A and 1B are a front view and a side view, respectively, showing the appearance of a self-illuminating delineator according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view showing the inside of a self-illuminating delineator according to an embodiment. [Diagram 3] FIG. 2 is a schematic diagram for explaining a first arrangement method of an LED row (FIG. 2(a)) and a second arrangement method (FIG. 2(b)). [Figure 4] FIG. 1 is a schematic diagram for explaining the distribution (approximately Gaussian distribution) of snow accretion onto a transparent cylindrical pipe. [Diagram 5] This is a table showing the measured values ​​of snow accretion width relative to the outer diameter of a cylindrical pipe (Table 1 in the same figure) and the central angle relative to the snow accretion width (Table 2 in the same figure). [Figure 6] This is a schematic diagram showing a state in which the left and right LED rows are not hidden by snow accumulation on the transparent cylindrical pipe in the self-luminous delineator of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The self-illuminating delineator 1 of the embodiment is attached to a pole P installed in the median strip or road shoulder of a road, and emits light by itself to guide the line of sight of a vehicle driver. As shown in Fig. 1 and Fig. 2, the self-illuminating delineator 1 includes a transparent cylindrical pipe 2 in a vertically elongated shape erected on the pole P with its vertical direction in the up-down direction, an LED row 3 in which a plurality of LEDs (light-emitting diodes) 31 are arranged vertically, a solar cell module 4 that generates electricity using sunlight, a power storage unit 5 that stores the electricity generated by the solar cell module 4, and a control unit 6 that controls the light emission pattern of the LED row 3, such as lighting and blinking.

[0012] The transparent cylindrical pipe 2 constitutes the exterior of the self-luminous delineator 1, and is formed into a cylindrical shape from transparent resin such as polycarbonate or acrylic. A lower case 71 that connects to the pole P is attached to the lower part of the transparent cylindrical pipe 2, and an upper case 72 is attached to the upper part of the transparent cylindrical pipe 2.

[0013] The LED rows 3 are provided in two rows, left and right, inside the transparent cylindrical pipe 2. The left and right LED rows 3 are integrally provided on a single LED board 30 having a vertically long rectangular shape, but each LED row 3 may be provided on a separate LED board. The left and right LED rows 3 are both installed so that the LEDs 31 in both rows emit light in the same forward direction. Note that, although bullet-type LEDs are used as the LEDs 31, various other LEDs, such as surface-mounted LEDs, may also be used.

[0014] The solar cell module 4 is provided inside the transparent cylindrical pipe 2 and is arranged in a triangular shape along the circumferential direction of the transparent cylindrical pipe 2 (see FIG. 2). The solar cell module 4 is a vertically long rectangular panel plate on which multiple solar cells are provided, but flexible solar cells may also be used.

[0015] The power storage unit 5 is installed inside the pole P, but may be installed inside the transparent cylindrical pipe 2 or may be installed separately. A lead-acid battery is used as the power storage unit 5, but an electric double-layer capacitor, a lithium battery, etc. may also be used. The control unit 6 is an electronic unit with a control circuit mounted on a board, and is installed inside the upper case 72 at the top of the transparent cylindrical pipe 2, but may be installed inside the transparent cylindrical pipe 2 or inside the lower case 71, or may be installed separately.

[0016] Next, a method for arranging the left and right LED rows 3 will be described. (First arrangement method) 3(a), the first arrangement method of the LED row 3 is to arrange the LED row 3 on each side of the transparent cylindrical pipe 2, which is separated by a linear distance S or more with a central angle θ of 40° from the outer peripheral surface of the transparent cylindrical pipe 2, with the projection position of the central axis of the transparent cylindrical pipe 2 as the midpoint when the transparent cylindrical pipe 2 is viewed from the front side in the LED light emission direction. In other words, the linear distance S with a central angle θ of 40° on the outer peripheral surface of the transparent cylindrical pipe 2 is assumed to be the snow accretion width W. Therefore, the left and right positions for arranging the LED row 3 are any positions within the left and right LED arrangement ranges (see FIG. 3(a)) excluding the intermediate range projected from the outer peripheral surface of the transparent cylindrical pipe 2 within the linear distance S with a central angle θ of 40° within the transparent cylindrical pipe 2 when viewed from the front side.

[0017] Here, the amount of snow that adheres to the outer peripheral surface of the upright cylindrical transparent pipe 2 during a snowstorm is maximum at a vertical position where the outer peripheral surface of the transparent pipe 2 is perpendicular to the wind direction, as shown in FIG. 4(a), and the amount of snow tends to decrease as it moves circumferentially to the left and right from this vertical position. The inventors analyzed the actual measurement data (see Table 1 in FIG. 5) of snow that actually adhered to each cylindrical pipe with an outer diameter of 60 mm to 150 mm during a snowstorm, and found that the distribution of the amount of snow that adheres to the outer peripheral surface of the transparent pipe 2 is approximately Gaussian distribution (see FIG. 4(b)) for the circumferential positions on the left and right sides when the amount of snow that adheres to the outer peripheral surface of the transparent pipe 2 is maximum at a position perpendicular to the wind direction. Therefore, the amount of snow that adheres to the outer peripheral surface of the transparent pipe 2 can be approximately calculated by the Gaussian distribution for a given position indicated by the central angle θ of the transparent pipe 2. Specifically, according to the Gaussian distribution, for example, if the snow thickness is 5.0 mm at a vertical position in the wind direction where the amount of snow is greatest, the thickness will be approximately 3.5 mm when the central angle α of the transparent cylindrical pipe 2 is at a position of ±10° (central angle θ = 20°) from this vertical position (central angle α is 0°), approximately 1.2 mm when the central angle α is at a position of ±20° (central angle θ = 40°), approximately 0.2 mm when the central angle α is at a position of ±30° (central angle θ = 60°), and less than 0.1 mm when the central angle α is at a position of ±35° (central angle θ = 70°).

[0018] These results show that, when looking at the transparent cylindrical pipe 2 from the front in the direction of light emission of the LEDs 31, at each position on the left and right sides that are spaced apart from the outer surface of the transparent cylindrical pipe 2 by a central angle θ of more than 40°, it is possible to avoid the snow accretion width W that blocks the light emission of the LED row 3, and at each position on the left and right sides that are spaced apart from the outer surface of the transparent cylindrical pipe 2 by a central angle θ of more than 70°, it is possible to exceed the snow accretion width W that covers the LED row 3.

[0019] Table 1 in Figure 5 shows the measured values ​​of the minimum (minimum snow accretion width) and maximum (maximum snow accretion width) of the diameter direction snow accretion width W (see Figure 2) that adheres to the outer surface of a cylindrical pipe with a diameter of 60 mm to 150 mm during a snowstorm. Table 2 in Figure 5 shows the calculated central angles of the cylindrical pipe for the snow accretion widths in Table 1, with the minimum central angle corresponding to the minimum snow accretion width in Table 1 and the maximum central angle corresponding to the maximum snow accretion width in Table 1.

[0020] Therefore, the LED arrangement range of each of the left and right LED rows 3 is within the left and right range of the central angle θ of the transparent cylindrical pipe 2 of 40° to 180°. For example, the left and right LED rows 3 can be arranged at positions where the central angle θ of the transparent cylindrical pipe 2 is 40° or more apart, preferably 60° or more apart, and more preferably 70° or more apart. On the other hand, by making the interval between the left and right LED rows 3 as small as possible and approaching each other, the light emitted from each of the left and right LED rows 3 can be interfered with each other to appear as one thick and bright light beam while avoiding snow accumulation during a snowstorm. For this reason, the left and right LED rows 3 can be arranged at positions where the central angle θ of the transparent cylindrical pipe 2 is 130° or less, preferably 100° or less, and more preferably 80° or less. As an example, in the case of a transparent cylindrical pipe 2 with an outer diameter of 114 mm, by arranging the LED rows 3 at the left and right positions where the central angle θ of the transparent cylindrical pipe 2 is about 75°, it is possible to avoid snow accumulation width during a snowstorm and improve visibility by emitting thick and bright light.

[0021] (Second arrangement method) 3(b), when the transparent cylindrical pipe 2 is viewed from the front side in the LED light emission direction, the LED rows 3 are arranged on each side, separated by a diameter distance L of 0.35D or more, where the projection position of the central axis of the transparent cylindrical pipe 2 is the midpoint and the diameter (outer diameter) of the outer peripheral surface of the transparent cylindrical pipe 2 is D. In other words, the range of the diameter distance L on the outer peripheral surface of the transparent cylindrical pipe 2 is assumed to be the snow accretion width W. Therefore, the left and right positions for arranging the LED rows 3 are any positions within the left and right LED arrangement ranges (see FIG. 3(b)) excluding the intermediate range of the distance L, which is 0.35% of the outer diameter D of the transparent cylindrical pipe 2, within the transparent cylindrical pipe 2 when viewed from the front side.

[0022] The inventors analyzed the measured data of snow accretion during a snowstorm for each cylindrical pipe with an outer diameter of 60 mm to 150 mm (see Table 1 in FIG. 5), and found that the width of snow accretion that adheres to the outer surface of an upright cylindrical pipe during a snowstorm tends to be proportional to the outer diameter of the cylindrical pipe. From this, they found that the snow accretion width W of snow accretion in the diameter direction of the transparent cylindrical pipe 2 can be approximately estimated from a linear function relationship with the outer diameter D of the transparent cylindrical pipe 2. Here, the snow accretion width W is the projected width of snow accretion spreading in the circumferential direction from the wind direction to the outer surface of the transparent cylindrical pipe 2. Therefore, the snow accretion width W on the outer surface of the transparent cylindrical pipe 2 can be approximately calculated as the distance L indicated by 0.35D when the outer diameter of the transparent cylindrical pipe 2 is D. The relationship 0.35D is derived from the relationship between the pipe diameter and the minimum snow accretion width shown in Table 1 in FIG. In the relationship between the pipe diameter and the maximum snow accretion width, the distance L is approximately expressed as 0.51D.

[0023] From this result, it was found that, when the transparent cylindrical pipe 2 is viewed from the front side in the light emission direction of the LEDs 31, the snow accretion width W that blocks the light emission of the LED row 3 can be avoided at positions on both sides of the transparent cylindrical pipe 2 that are 0.35D or more apart, with the outer diameter of the transparent cylindrical pipe 2 being D, and the snow accretion width W that covers the LED row 3 can be exceeded at positions on both sides of the transparent cylindrical pipe 2 that are 0.51D or more apart. Incidentally, when the distance L is 0.35D, this roughly corresponds to when the central angle θ of the transparent cylindrical pipe 2 is 40°, and similarly, when the distance L is 0.51D, this roughly corresponds to when the central angle θ is 60°. Note that when the distance L is 0.58D, this roughly corresponds to when the central angle θ is 70°, when the distance L is 0.65D, this roughly corresponds to when the central angle θ is 80°, when the distance L is 0.77D, this roughly corresponds to when the central angle θ is 100°, and when the distance L is 0.91D, this roughly corresponds to when the central angle θ is 130°.

[0024] Therefore, when the outer diameter of the transparent cylindrical pipe 2 is D, the LED arrangement range of each of the left and right LED rows 3 is within a left and right range where the distance L in the diameter direction of the transparent cylindrical pipe 2 is 0.35D or more and less than the outer diameter D, but for example, each of the left and right LED rows 3 can be arranged at left and right positions where the range of the distance L is 0.35D (equivalent to a central angle θ of 40°) or more, 0.51D (equivalent to a central angle θ of 60°) or more, or 0.58D (equivalent to a central angle θ of 70°) or more, and 0.91D (equivalent to a central angle θ of 130°) or less, 0.77D (equivalent to a central angle θ of 100°) or less, or 0.65D (equivalent to a central angle θ of 80°) or less. As a result, the left and right LED rows 3 can avoid snow accumulation during a snowstorm, and the light emitted by each of the left and right LED rows 3 can interfere with each other to appear as a single thick and bright light beam. As an example, if the outer diameter D of the transparent cylindrical pipe 2 is 114 mm, by arranging the LED rows 3 on the left and right sides of approximately 0.61D (equivalent to a central angle θ of 75°) where L is the diameter direction distance of the transparent cylindrical pipe 2, it is possible to avoid the width of snow accumulation during a snowstorm and improve visibility by emitting thick, bright light.

[0025] As described above, according to the first and second arrangement methods of the LED row 3, the LED row 3 can be appropriately arranged on each side at a distance of at least the snow accumulation width W that blocks the light emission of the LED 31 against snow accumulation on the outer peripheral surface of the transparent cylindrical pipe 2 assumed during a snowstorm. Therefore, as shown in FIG. 6, even if snow accumulates on the outer peripheral surface of the transparent cylindrical pipe 2 in the vertical direction due to a snowstorm, the LED row 3 on each side does not block the light emission of the LED 31 on both sides due to snow accumulation, and the visibility of the light emission from at least one side of the LED row 3 is ensured, and the LED row 3 can be effectively used as a delineator. In addition, since the LED row 3 only needs to be arranged on at least the left and right sides, the number of LED rows 3 can be kept to a minimum number necessary to suppress an increase in initial costs and an increase in power consumption. Therefore, according to the self-luminous delineator 1 of this embodiment, even if snow accumulates on the outer peripheral surface of the transparent cylindrical pipe 2 due to a snowstorm, the visibility of the light emission from the LED row 3 can be ensured without unnecessarily increasing the number of LED rows 3. Therefore, while suppressing increases in initial costs and power consumption, it is effective as a visual guide even during a snowstorm, and can guide the driver's gaze. On the other hand, by arranging the LED rows 3 with a wider spacing on each side, when there is no snow on the transparent cylindrical pipe 2, the light from the two LED rows 3 appears to spread out more horizontally, which can improve the driver's visibility on curved roads, for example.

[0026] In addition, the self-luminous delineator of this embodiment has the following configuration and effects. The LEDs 31 provided in the left and right LED rows 3 have a directivity angle of 30°. Therefore, the light emitted by the LEDs 31 from each of the two LED rows 3 spreads left and right over a range of 30° around an optical axis facing straight forward, and the light emitted by the LEDs 31 from the left and right LED rows 3 overlap in front. The LEDs 31 are not limited to those with a directivity angle of 30°, and those with any directivity angle can be used, for example, those with a directivity angle of 20° to 40° are used.

[0027] In addition, in this embodiment, the LED substrate 30 to which the left and right LED rows 3 are attached is a flat substrate without any bends; however, for example, the LED substrate 30 may be tilted or bent so that the optical axis of the LEDs 31 in one or both of the left and right LED rows 3 is tilted toward the other LED row 3.

[0028] As described above, when the directivity angle of the LEDs 31 in each of the two LED rows 3 is 20° or more, or when one or both of the LED rows 3 are inclined toward the other LED row 3, the two left and right LED rows 3 look like two rows of light with a non-light-emitting area between the left and right LED rows 3 when viewed from a close distance, but when viewed from a distance of a specified distance or more, the light emitted by each of the left and right LED rows 3 interferes with each other in the horizontal direction and looks like one bright and thick light beam, improving the visibility of the delineator. Therefore, the driver of the vehicle can confirm the light emitted by the delineator as a bright light even from a distance, and can clearly recognize the road alignment.

[0029] Here, the "Standards for Installation of Delineators and Commentary" stipulate that the installation interval of delineators is 40m. If the self-luminous delineator 1 of this embodiment is installed on a road where delineators are installed at 40m intervals according to this standard, when a vehicle driver looks at the self-luminous delineator 1 40m ahead, the driver can clearly see it as one bright and thick beam of light, and the safety of vehicle operation can be expected to improve. In addition, according to the Road Snowstorm Countermeasures Manual (Public Works Research Institute, Cold Civil Engineering Research Institute), there is a management concept of closing the road when the visibility is 50m or less, and it is said that when a traveling vehicle evacuates to a safe place, it is necessary that one or more targets are always visible under weather conditions with a visibility of 50m. Therefore, according to the self-luminous delineator 1 of this embodiment, the self-luminous delineator 1 can be clearly seen as one bright and thick beam of light even under weather conditions with a visibility of 50m, and the safety of vehicle operation can be expected to improve.

[0030] In this embodiment, the left and right LED rows 3 are arranged in a predetermined LED arrangement range by the first arrangement method or the second arrangement method described above, but as shown in Fig. 3 (a) (b), by making the interval between the left and right LED rows 3 as small as possible and bringing them closer together, the visibility of the light emitted by the LED row 3 can be ensured even when snow accumulates during a snowstorm, and furthermore, the interference between the light emitted by the left and right LED rows 3 can cause bright light emission, thereby further improving the visibility of the LED light emission. It is preferable that the left and right LED rows 3 are brought closer to the front surface of the transparent cylindrical pipe 2 (near the inner circumferential surface of the transparent cylindrical pipe 2). That is, the left and right LED rows 3 can be arranged at both ends on the diameter line of the transparent cylindrical pipe 2, but in that case, each LED row 3 is arranged backward from the front surface of the transparent cylindrical pipe 2 by the radius of the transparent cylindrical pipe 2, so that depending on the viewing angle, part of the light emitted by either the left or right LED row 3 may be hidden by the solar cell module 4. The left and right LED rows 3 are arranged close to each other with as little space between them as possible, and each LED row 3 is brought close to the front of the transparent cylindrical pipe 2, so that the light emitted from the LED rows 3 is not hidden by the solar cell module 4, and the visibility of the LED light can be further improved.

[0031] 2, the solar cell module 4 is arranged in a triangular shape with the power generation surface on three sides in the circumferential direction of the transparent cylindrical pipe 2. The left and right LED rows 3 are arranged at the two vertices of the triangle of the solar cell module 4. This allows the power generation surface of the solar cell module 4 to be arranged facing three directions in a 360° range in the circumferential direction of the transparent cylindrical pipe 2 without the left and right LED rows 3 casting shadows on the power generation surface of the solar cell module 4, making it easier to ensure the amount of power generation of the solar cell module 4.

[0032] The solar cell module 4 may be arranged in a circumferential range in parallel with the left and right LED rows 3, or in a middle range between the left and right LED rows 3. When the solar cell module 4 is arranged in a circumferential range in parallel with the LED rows 3, the solar cell module 4 may be, for example, arranged with two power generating surfaces in a V-shape, arranged with three power generating surfaces in a U-shape, arranged with two power generating surfaces in a V-shape in a diamond shape by combining two solar cells, arranged with three or more power generating surfaces in a polygonal shape, or arranged with a flexible solar cell bent arbitrarily. When the solar cell module 4 is arranged in a middle range between the left and right LED rows 3, the solar cell module 4 may be, for example, arranged with one bifacial solar cell, or arranged with two solar cells back to back with their power generating surfaces facing outward.

[0033] Also, the solar cell module 4 may be installed outside the transparent cylindrical pipe 2 by, for example, attaching it to a pole P. In this case, the left and right LED rows 3 can be installed without considering the space required for arranging the solar cell module 4 inside the transparent cylindrical pipe 2. For example, the left and right LED rows 3 can be arranged at any positions on the left and right sides of the front side and the back side inside the transparent cylindrical pipe 2. With this configuration, even if snow accumulates on the front side or back side of the transparent cylindrical pipe 2 during a snowstorm, the driver's line of sight can be guided to vehicles traveling on the uphill and downhill lanes.

[0034] Although the above is one embodiment of the present invention, the present invention is not limited to the above embodiment and can be modified in various ways within the scope of the claims. For example, in the embodiment, two rows of LEDs 3 that emit light from LEDs 31 in a forward direction are arranged on the left and right, but other rows of LEDs 3 may be added to the two rows of LEDs 3 on the left and right to arrange three or more rows of LEDs 3, and further, in addition to the two rows of LEDs 3 on the left and right that emit light from LEDs 31 in a forward direction, a row of LEDs 3 that emits light from LEDs 31 in a sideward or backward direction may be arranged. [Explanation of symbols]

[0035] 1 Self-luminous visual guide 2 Transparent cylindrical pipe 3 LED rows 4. Solar cell modules 5. Electricity storage unit 6. Control Unit 30 LED board 31 LED 71 Lower case 72 Upper case P Pole

Claims

1. A self-illuminating delineator that is installed on the median strip or shoulder of a road and emits light to guide the driver's gaze, A vertically long transparent cylindrical pipe that is vertically arranged, an LED row provided in the transparent cylindrical pipe and including a plurality of LEDs arranged in a vertical row; The LED row is provided so that light emitted from each LED is directed forward. When the transparent cylindrical pipe is viewed from the front in the direction of LED light emission, the LED rows are arranged on each side of the transparent cylindrical pipe, with the projection position of the central axis of the transparent cylindrical pipe as the midpoint, and separated by a straight line distance of a central angle of 40° or more from the outer peripheral surface of the transparent cylindrical pipe.

2. A self-illuminating delineator that is installed on the median strip or shoulder of a road and emits light to guide the driver's gaze, A vertically long transparent cylindrical pipe that is vertically arranged, an LED row provided in the transparent cylindrical pipe and including a plurality of LEDs arranged in a vertical row; The LED row is provided so that light emitted from each LED is directed forward. When the transparent cylindrical pipe is viewed from the front in the direction of LED light emission, the LED rows are arranged on each side, a distance L in the diameter direction of 0.35D or more, where the midpoint is the projection position of the central axis of the transparent cylindrical pipe and the diameter of the outer circumferential surface of the transparent cylindrical pipe is D.

3. The self-illuminating delineator according to claim 1 or 2, A self-illuminating visual guidance sign in which one or both of the left and right LED rows are installed with the optical axis of the LED tilted toward the other LED row.

4. The self-illuminating delineator according to claim 1 or 2, The solar cell module is placed inside a transparent cylindrical pipe. A self-luminous visual guidance marker, wherein the solar cell module is arranged in a circumferential range parallel to the left and right LED rows, or in a middle range between the left and right LED rows.

5. The self-illuminating delineator according to claim 1 or 2, A solar cell module is provided inside or outside the transparent cylindrical pipe, The left and right LED rows are arranged at the left and right positions on the front side and the left and right positions on the back side within a transparent cylindrical pipe, making this a self-luminous visual guidance sign.

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