Runway-mounted flashing device

Abstract

To provide a runway-embedded flash device that is light-weight, has a long life and high effective luminous intensity, can switch luminous intensity, has small power consumption, and can be placed on the ground surface with its bottom facing down without requiring a stand or the like.SOLUTION: A runway-embedded flash device comprises a cylindrical body 10, a ceiling member 11, a light guide member 12, an LED flashlight source 13, and a bottom cover member 16. The ceiling member is arranged on an upper opening part of the cylindrical body 10 in a state of being exposed to a runway surface. The ceiling member 11 is provided with a window for flashlight irradiation. The light guide member 12 is arranged at the window for flashlight irradiation. The LED flashlight source 13 is arranged in the cylindrical body 10 in a state of being capable of emitting flashlight toward the light guide member 12 arranged at a window for flashlight source. The light guide member 12 allows the flashlight emitted from the LED flashlight source 13 to be emitted from the window for flashlight irradiation to the outside. The bottom cover member 16 is arranged in a state of being capable of closing a lower opening part of the cylindrical body 10. The bottom cover member 16 has a support part 17 protruding from an external surface of the bottom cover member 16 on a side opposite the cylindrical body 10 side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a runway-mounted flashing device. [Background technology]

[0002] Conventionally, marker lights that emit beacon light have been buried under the road surface as guide signs for aviation runways (see, for example, Patent Document 1). These recessed marker lights buried under the road surface sometimes use discharge lamps containing xenon as a flashing light source. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-228103 Summary of the Invention [Problem to be solved by the invention]

[0004] However, flashing devices using xenon flash sources have problems such as being heavy, having a short lifespan, low effective light intensity, not being able to switch between high, medium, and low light intensities, and consuming a lot of power. Furthermore, because runway-embedded flashing devices have cable glands at the bottom, placing the device on the ground, for example, during installation or when removing the device for maintenance, requires the use of a stand or the device being turned upside down or tilted. This makes the process complicated and poses a risk of damaging the cable glands.

[0005] Therefore, an object of the present invention is to provide a new runway-embedded flashing device that is lightweight, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and can be placed on the ground with its bottom facing down without requiring a stand or the like. [Means for solving the problem]

[0006] In order to achieve the above object, the runway embedded flash device of the present invention comprises: The lamp includes a cylindrical main body, a ceiling member, a light guide member, an LED flashlight source, and a bottom cover member, The cylindrical body is embeddable in a runway; the ceiling member is disposed at an upper opening of the cylindrical main body in a state in which the ceiling member can be exposed to a runway surface when the cylindrical main body is embedded in the runway, The ceiling member is provided with a window for flashlight irradiation, the light guide member is disposed in the flashlight irradiation window, the LED flashlight source is disposed within the cylindrical body in a state capable of emitting a flashlight toward the light-guiding member disposed in the flashlight emission window; the light guide member allows the flash emitted from the LED flashlight source to be emitted to the outside through the flashlight irradiation window, the bottom cover member is disposed in a state capable of closing a lower opening of the cylindrical main body, the bottom cover member has a support portion protruding from an outer surface of the bottom cover member on a side opposite to the cylindrical main body side, The support portion includes two support columns standing upright from the outer surface and a beam portion spanning the upper ends of the two support columns, and also serves as a handle. It is characterized by: [Effects of the Invention]

[0007] The runway-embedded flashing device of the present invention is light, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and can be placed on the ground with its bottom facing down without requiring a stand or the like. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded perspective view showing the configuration of an example of a runway-embedded flash device according to the first embodiment. [Figure 2] FIG. 2 is a perspective view from above showing an example of the cylindrical main body and ceiling member of the runway-embedded flash device of the first embodiment. [Figure 3]FIG. 3 is a perspective view from below showing an example of the cylindrical main body and ceiling member of the runway-embedded flash device of the first embodiment. [Figure 4] FIG. 4 is a partially enlarged perspective view showing an example of an LED flashlight source in the runway-embedded flashlight device of the first embodiment. [Figure 5] FIG. 5 is a cross-sectional view showing an example of an LED flashlight source in the runway-embedded flashlight device of the first embodiment. [Figure 6] FIG. 6 is a perspective view of the runway-embedded flash device shown in FIG. 1, seen from below. [Figure 7] FIG. 7 is a schematic perspective view showing an example of the configuration of a runway according to the second embodiment. [Figure 8] FIG. 8 is a schematic side view illustrating flashlight irradiation in the runway-embedded flashlight device of the first embodiment. [Figure 9] FIG. 9 is a side view showing an example of a light-guiding member and an LED flashlight source in the runway-embedded flashlight device shown in FIG. [Figure 10] 10A and 10B are diagrams showing variations of the support part of the runway-embedded flash device of the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Next, embodiments of the present invention will be described with reference to Figs. 1 to 10. The present invention is not limited or restricted in any way by the following embodiments. In Figs. 1 to 10, the same parts are denoted by the same reference numerals. The descriptions of the respective embodiments can be mutually incorporated. In addition, for the sake of convenience, the structures of the parts are shown in simplified form in the drawings, and the dimensional ratios of the parts may be shown schematically and different from the actual ones.

[0010] [Embodiment 1] 1 is an exploded perspective view showing the configuration of an example of a runway-embedded flash device according to this embodiment. As shown in FIG. 1, the runway-embedded flash device 1 includes a cylindrical main body 10, a ceiling member 11, a light-guiding member 12, an LED flashlight source 13, and a bottom cover member 16.

[0011] The cylindrical main body 10 can be embedded in the runway 2, as will be described later in the second embodiment with reference to Fig. 7. The cylindrical main body 10 may be cylindrical, for example, as shown in Fig. 1, or may have a cylindrical shape other than a cylindrical shape, such as an elliptical cylinder or a rectangular cylinder.

[0012] When the cylindrical body 10 is embedded in the runway 2, the ceiling member 11 is arranged at the upper opening of the cylindrical body 10 in a state where it can be exposed to the runway surface.

[0013] The cylindrical main body 10 and the ceiling member 11 may be separate and independent members as shown in Fig. 1, or may be an integrally molded product as shown in Fig. 2. Examples of the integrally molded product include aluminum castings, titanium castings, aluminum alloy castings, and titanium alloy castings, with aluminum castings and titanium castings being preferred because of their light weight, and aluminum castings being particularly preferred because of their low cost. Even when the cylindrical main body 10 and the ceiling member 11 are separate members, the cylindrical main body 10 and the ceiling member 11 can be, as in the case of the integrally molded product, examples of the cylindrical main body 10 and the ceiling member 11 include aluminum castings, titanium castings, aluminum alloy castings, and titanium alloy castings.

[0014] A flashlight window is provided in the ceiling member 11, and a light-guiding member 12 is disposed in the flashlight window. In the runway-embedded flashlight device 1 of this embodiment, for example, there may be two or more flashlight windows, and a light-guiding member 12 may be disposed in each of the flashlight windows. If there are two or more light-guiding members 12, the load on the light-guiding member 12 can be further reduced, and damage can be prevented. For example, as shown in FIG. 1, the flashlight window and the light-guiding member 12 may be divided into two or more pieces by a reinforcing plate member 14, which will be described later. An example of the light-guiding member 12 is a prism lens. The material of the prism lens is not particularly limited, but may be, for example, glass.

[0015] The ceiling member 11 may, for example, include an upper ceiling portion 11a and a lower ceiling portion 11b, and may have a stepped structure in which the upper ceiling portion 11a is positioned rearward of the irradiation direction of the flash irradiation window, and the lower ceiling portion 11b is positioned toward the irradiation direction of the flash irradiation window.

[0016] The runway-embedded flash device 1 of this embodiment may further include, for example, a reinforcing plate member 14, which may be arranged on the outer surface of the lower ceiling portion 11b in a state of standing upright in the vertical direction of the outer surface of the lower ceiling portion 11b. The ceiling member 11 and the reinforcing plate member 14 may be, for example, separate and independent members, or may be an integrally molded product. When the ceiling member 11 and the reinforcing plate member 14 are separate members, the reinforcing plate member 14 may be, for example, an aluminum casting, a titanium casting, an aluminum alloy casting, a titanium alloy casting, or the like, as in the case of the integrally molded product.

[0017] The runway-embedded flashlight device 1 of this embodiment may further include a fixing member 15, for example. The fixing member 15 is disposed on the outer periphery of the ceiling member 11, and may be provided with screw holes for passing screws for fixing the runway 2. The fixing member 15 may have a tapered outer surface that becomes thinner toward the outer periphery. The ceiling member 11 and the fixing member 15 may be separate, independent members, or may be a single-piece molded product. When the ceiling member 11 and the fixing member 15 are separate members, the fixing member 15 may be made of, for example, aluminum casting, titanium casting, aluminum alloy casting, titanium alloy casting, or the like, as in the case of the single-piece molded product. At least one of the ceiling member 11 and the fixing member 15 may have a hole for lifting the runway-embedded flashlight device 1 with a tool, for example.

[0018] LED flashlight source 13 is disposed within cylindrical main body 10 in a state in which it can emit a flash of light toward light-guiding member 12 disposed in the flashlight emission window. Fig. 3 shows an exemplary perspective view of cylindrical main body 10 and ceiling member 11 from below. For example, as shown in Fig. 3, a portion for arranging LED flashlight source 13 may be provided on the inner surface of ceiling member 11 (the surface on the cylindrical main body 10 side) below the flashlight emission window. Light-guiding member 12 allows the flash of light emitted from LED flashlight source 13 to be emitted to the outside from the flashlight emission window.

[0019] An example of the LED flash light source 13 is an LED module. For example, as shown in Fig. 1, the LED flash light source 13 includes a substrate 13a and LEDs 13b, with the LEDs 13b arranged on the substrate 13a. In the example shown in Fig. 1, the number of LED flash light sources 13 is two, but the number of LED flash light sources 13 may be one, or three or more.

[0020] The conditions for mounting the LEDs 13b on the substrate 13a are not particularly limited and can be set appropriately depending on the desired optical characteristics. Figure 1 shows an example in which 72 LEDs 13b are mounted on the substrate 13a, in two rows and columns of 4 × 9 = 36 LEDs.

[0021] The shape of the LEDs 13b is not particularly limited, and is generally square or rectangular. The size of the LEDs 13b is also not particularly limited, and if they are square, the length of one side is, for example, 1.8 to 2.2 mm, 3 to 3.5 mm, or 4 to 5.3 mm. If they are rectangular, the length of the short side is, for example, the same as the length of the square, and the ratio of the short side to the long side is, for example, 1:1 to 3. The width between adjacent LEDs on the mounting surface of the substrate 13a for the LEDs 13b is, for example, 0.2 to 0.5 mm.

[0022] As shown in the partially enlarged perspective view of FIG. 4 and the cross-sectional view of FIG. 5, the LED flashlight source 13 may include a lens member 13c disposed above the LED 13b, which provides a uniform illuminance distribution on the surface illuminated by the flashlight emitted from the LED 13b. Examples of the lens member 13c include a fly's eye lens and an integrator lens. For example, as shown in FIG. 5, dividing the lens member 13c into two or more pieces to prevent it from becoming too large can further reduce the load on the lens member 13c and prevent breakage. It is preferable that the lens member 13c not be too small to avoid loss of light emitted from the flashlight.

[0023] The runway-embedded flash device 1 of this embodiment may further include a heat dissipation member 13d, as shown in Fig. 5, and the heat dissipation member 13d may be arranged on the surface of the substrate 13a of the LED flash source 13 opposite to the surface on which the LEDs 13b are mounted. Fig. 5 shows an example in which the heat dissipation member 13d is a heat dissipation fin, but it is also possible to dissipate heat using a fan or the like that blows air toward the substrate 13a.

[0024] The bottom cover member 16 is arranged in a state in which it can close the lower opening of the cylindrical main body 10. The bottom cover member 16 has a support portion 17 that protrudes from the outer surface of the bottom cover member 16 on the side opposite to the cylindrical main body 10. Examples of materials for the bottom cover member 16 include aluminum, titanium, aluminum alloys, titanium alloys, and castings thereof.

[0025] The support parts 17 may be any part that allows the runway-embedded flash device 1 to be placed bottom-down on the ground without the need for a stand, and there are no particular limitations on their shape, size, height, number, or other configurations. Figure 1 shows an example of a runway-embedded flash device 1 in which two support parts 17, each consisting of two support posts standing up from the exterior surface and a beam spanning the upper ends of the two support posts, are arranged facing each other on the exterior surface of the bottom cover member 16. The two support parts 17 protrude from the exterior surface to the same height. For example, in the embodiment shown in Figure 1, the support parts 17 also function as handles, making it easier to carry the runway-embedded flash device 1 by hand.

[0026] Fig. 6 is a perspective view from below of the runway-embedded flash device 1 shown in Fig. 1. For example, as shown in Fig. 6, the bottom cover member 16 may include a cable gland 16a and an external earth terminal 16b. From the viewpoint of preventing the cable gland 16a and the external earth terminal 16b from contacting the ground and being damaged, it is preferable that the height of the support portion 17 protruding from the external surface be equal to or greater than the height of the cable gland 16a and the external earth terminal 16b protruding from the external surface. Furthermore, if the bottom cover member 16 is attached to at least one of the cylindrical body 10 and the LED flash light source 13 with, for example, a screw 16c and an O-ring (not shown), the runway-embedded flash device 1 can be made waterproof.

[0027] 10(A) and (B) show variations of the support part 17. As shown in FIGS. 10(A) and (B), the runway-embedded flash device 1 can be placed bottom-down on the ground without a stand or the like using three or more support parts 17 of various shapes, such as cylindrical or U-shaped. When two or more support parts 17 are used, the two or more support parts 17 are preferably arranged side by side in the circumferential direction on the outer surface of the bottom cover member 16, and the circumferential arrangement is preferably equally spaced. Although not shown, the runway-embedded flash device 1 can also be placed bottom-down on the ground without a stand or the like using a single support part 17 in the shape of a pillar (e.g., a circular pillar, an elliptical pillar, a rectangular pillar, etc.), a tube (e.g., a cylindrical, an elliptical tube, a rectangular tube, etc.), etc.

[0028] The runway-embedded flash device 1 of this embodiment preferably emits an upward flash at an angle α of about 3° with respect to the direction parallel to the runway surface, as shown in Fig. 8. An example of the light-guiding member 12 and LED flash light source 13 inside the runway-embedded flash device 1 shown in Fig. 8 is shown in Fig. 9.

[0029] While a flash device using a xenon flash light source weighs 65 kg or less, specifically about 40 kg, the weight of the runway-embedded flash device 1 of this embodiment is, for example, 18 kg or less, specifically about 11 kg. In this way, this embodiment can provide a lightweight runway-embedded flash device.

[0030] While the lifespan of a flash device using a xenon flash light source is about 500 hours, the runway-embedded flash device 1 of this embodiment can be used, for example, indefinitely. In this way, this embodiment can provide a long-life runway-embedded flash device.

[0031] While the effective luminous intensity of a flash device using a xenon flash light source is 1000 cd or more, specifically about 1200 cd, the effective luminous intensity of the runway-embedded flash device 1 of this embodiment is, for example, 6000 cd or more, specifically about 7000 cd. In this way, this embodiment can provide a runway-embedded flash device with high effective luminous intensity.

[0032] Whereas flash devices using xenon flashlight sources cannot switch the luminous intensity between high, medium, and low, as described above, the runway-embedded flash device 1 of this embodiment has a high effective luminous intensity, and therefore can switch the luminous intensity between, for example, high (e.g., 6000 cd or more), medium (e.g., 1000 cd or more), and low (e.g., 250 cd or more). In this way, this embodiment can provide a runway-embedded flash device with switchable luminous intensities. The high luminous intensity is used, for example, during the day when visibility is poor due to fog or rain, the low luminous intensity is used, for example, at night, and the medium luminous intensity is used, for example, in the evening.

[0033] While the power consumption of a flash device using a xenon flash light source is about 500 W, the power consumption of the runway-embedded flash device 1 of this embodiment is, for example, about 80 W (maximum 114 W at high light intensity, 31 W at medium light intensity, and 24 W at low light intensity). In this way, this embodiment can provide a runway-embedded flash device with low power consumption.

[0034] [Embodiment 2] Fig. 7 is a schematic perspective view showing the configuration of an example of a runway of this embodiment. Although Fig. 7 shows a simplified schematic view, the runway 2 is formed by embedding the runway-embedded flash device 1 of the first embodiment in the runway, with the ceiling member 11 exposed.

[0035] Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

[0036] A part or all of the above-described embodiments can be described as, but not limited to, the following supplementary notes. (Appendix 1) The lamp includes a cylindrical main body, a ceiling member, a light guide member, an LED flashlight source, and a bottom cover member, The cylindrical body is embeddable in a runway; the ceiling member is disposed at an upper opening of the cylindrical main body in a state in which the ceiling member can be exposed to a runway surface when the cylindrical main body is embedded in the runway, The ceiling member is provided with a window for flashlight irradiation, the light guide member is disposed in the flashlight irradiation window, the LED flashlight source is disposed within the cylindrical body in a state capable of emitting a flashlight toward the light-guiding member disposed in the flashlight emission window; the light guide member allows the flash emitted from the LED flashlight source to be emitted to the outside through the flashlight irradiation window, the bottom cover member is disposed in a state capable of closing a lower opening of the cylindrical main body, The bottom cover member has a support portion protruding from an outer surface of the bottom cover member on the side opposite to the cylindrical main body side. Runway-mounted flashing device. (Appendix 2) The number of the support parts is two or more, The two or more support parts have the same protruding height from the outer surface. A runway-mounted flashing device as described in Appendix 1. (Appendix 3) In the two or more support portions, two of the support portions are disposed on the outer surface of the bottom cover member in a state where they face each other. A runway-mounted flashing device as described in Appendix 2. (Appendix 4) The two or more support portions are arranged side by side in the circumferential direction on the outer surface of the bottom cover member. 4. A runway-mounted flashing device as described in paragraph 2 or 3. (Appendix 5) The two or more support portions are arranged at equal intervals in the circumferential direction on the outer surface. A runway-mounted flashing device as described in Appendix 4. (Appendix 6) The support portion includes two support columns standing upright from the outer surface and a beam portion spanning the upper ends of the two support columns. 6. A runway-mounted flashing device according to any one of clauses 1 to 5. (Appendix 7) the bottom cover member includes a cable gland and an external ground terminal; the cable gland and the external ground terminal protrude from the outer surface of the bottom cover member; The height of the support portion protruding from the external surface is equal to or greater than the height of the cable gland and the external earth terminal protruding from the external surface. 7. A runway-mounted flashing device according to any one of clauses 1 to 6. (Appendix 8) the LED flashlight source includes a substrate, an LED, and a lens member; The LED is disposed on the substrate; The lens member is disposed above the LED, The lens member is a lens member that makes the illumination surface of the flash of light emitted from the LED have a uniform illuminance distribution. 8. A runway-mounted flashing device according to any one of clauses 1 to 7. (Appendix 9) Further, a heat dissipation member is included, The heat dissipation member is disposed on the surface of the substrate of the LED flashlight source opposite to the surface on which the LED is mounted. A runway-mounted flashing device as described in Appendix 8. (Appendix 10) the ceiling member includes an upper ceiling portion and a lower ceiling portion, the upper ceiling portion is disposed rearward of the direction of irradiation of the flashlight irradiation window, The lower ceiling portion is disposed on the irradiation direction side of the flash irradiation window. 10. A runway-mounted flashing device according to any one of clauses 1 to 9. (Appendix 11) Further, a reinforcing plate member is included, The reinforcing plate member is disposed on the outer surface of the lower ceiling portion in a state of standing upright in a direction perpendicular to the outer surface of the lower ceiling portion. 11. A runway-mounted flashing device as described in Clause 10. (Appendix 12) The cylindrical body and the ceiling member are integrally molded. 12. A runway-mounted flashing device according to any one of claims 1 to 11. (Appendix 13) There are two or more flashlight irradiation windows, and the light guide member is disposed in each of the flashlight irradiation windows. 13. A runway-mounted flashing device according to any one of clauses 1 to 12. (Appendix 14) Further, the fixing member is included, the fixing member is disposed on the outer periphery of the ceiling member, The fixing member is provided with a screw hole through which a screw for fixing to the runway is passed. 14. A runway-mounted flashing device according to any one of claims 1 to 13. (Appendix 15) The ceiling member and the fixing member are integrally molded. 14. A runway-mounted flashing device as described in Clause 14. (Appendix 16) 16. A runway having a runway-mounted flashing device embedded therein as described in any one of appendices 1 to 15. [Industrial Applicability]

[0037] According to the present invention, it is possible to provide a new runway-mounted flashing device that is lightweight, has a long life, has high effective luminous intensity, is switchable in luminous intensity, consumes little power, and can be placed bottom-down on the ground without requiring a stand or the like. [Explanation of symbols]

[0038] 1. Runway-mounted flashing devices 2 runways 10 Cylindrical body 11 Ceiling materials 11a Upper ceiling 11b Lower ceiling 12 Light guide member 13 LED flash light source 13a substrate 13b LED 13c Lens material 13d Heat dissipation material 14 Reinforcement plate member 15 Fixing member 16 Bottom cover member 16a cable gland 16b External ground terminal 16c screw 17 Support part

Claims

1. A runway-mounted flashing device, The lamp includes a cylindrical main body, a ceiling member, a light guide member, an LED flashlight source, and a bottom cover member, The cylindrical body is embeddable in a runway; the ceiling member is disposed at an upper opening of the cylindrical main body in a state in which the ceiling member can be exposed to a runway surface when the cylindrical main body is embedded in the runway, The ceiling member is provided with a window for flashlight irradiation, the light guide member is disposed in the flashlight irradiation window, the LED flashlight source is disposed within the cylindrical body in a state capable of emitting a flashlight toward the light-guiding member disposed in the flashlight emission window, the light guide member allows the flash of light emitted from the LED flashlight source to be emitted to the outside through the flashlight irradiation window, the bottom cover member is disposed in a state capable of closing a lower opening of the cylindrical main body, the bottom cover member has two support portions protruding from an outer surface of the bottom cover member on a side opposite to the cylindrical main body side, The support part includes two support poles standing from the outer surface and a beam part spanning the upper ends of the two support poles, and the two support poles are arranged on the outer surface facing each other, allowing the runway embedded flash device to be placed on the ground with its bottom facing downwards, and also serving as a handle. Runway-mounted flashing device.

2. the bottom cover member includes a cable gland and an external ground terminal; the cable gland and the external ground terminal protrude from the outer surface of the bottom cover member; The height of the two support parts projecting from the external surface is equal to or greater than the height of the cable gland and the external earth terminal projecting from the external surface. The runway-mounted flashing device according to claim 1.

3. The two support portions have the same protruding height from the outer surface. The runway-mounted flashing device according to claim 2.

Images