JP6187927B2 - Aviation Obstruction Light - Google Patents

Description

  The present invention relates to an aviation obstacle light installed in a steel tower or high-rise building in order to make an aircraft, helicopter, etc. recognize the presence of a high-rise building, and in particular, a rod lens is used for the light source portion thereof. Related to aviation obstruction lights.

  Aviation obstruction lights are lamps that allow aircraft operators to recognize the existence of steel towers and high-rise buildings, and are required to be installed in high-rise buildings for safe navigation.

  In general, an aircraft obstacle light is composed of a base, a light source, and a cover. The light source is disposed on the top of the base, and a power source for driving the light source is built in the base. Moreover, the base is covered with a detachable cover, thereby protecting the light source and the power source from wind and rain.

  Conventionally, incandescent light bulbs have been used as light sources for aviation obstruction lights, but recently, aviation obstruction lights have been required to have low power consumption. For this reason, currently, low-luminance aviation obstacle lights that use LEDs as the light source have become mainstream. For example, Patent Literature 1 and Patent Literature 2 disclose low-luminance aviation obstacle lights using LEDs as light sources.

  The light source of the low-luminance aviation obstruction light described in Patent Document 1 has a structure in which 30 plate members each having 5 LEDs are arranged on the outer periphery of a cylindrical member. 150 LEDs are used.

  Aviation obstruction lights require legal light distribution characteristics. In the low-light aviation obstacle light of Patent Document 1, compared with the low-light aviation obstacle light of Patent Document 2, the number of LEDs is reduced to further save energy. However, if the number of LEDs is reduced, unevenness occurs in the irradiated light. As a result, there arises a problem that the desired light distribution characteristics cannot be satisfied. Therefore, in the low-luminance aviation obstruction light of Patent Document 1, a cover having a light distribution control function is provided on the light source to eliminate unevenness of irradiation light and satisfy desired light distribution characteristics.

  When the size and weight of the aviation obstacle light of Patent Document 1 are mentioned, the size is about H260 mm × W190 mm × D190 mm, and the weight is about 2.5 kg.

  On the other hand, a medium-light aviation obstacle light using an LED as a light source is disclosed in Patent Document 3, for example.

  Since the light source of the medium-light aviation obstacle light described in Patent Document 3 is required to have a higher light intensity than the low-light aviation obstacle light, 48 LEDs are arranged on one plate-like member, and the plate 80 pieces of cylindrical members are arranged on the outer periphery of the cylindrical member, and about 4000 LEDs are used as a whole.

  In addition, since the medium-light aviation obstruction light requires strict radiant intensity distribution characteristics compared to the low-light aviation obstruction light, there is a problem that the conventional bullet-type LED cannot satisfy the standard. In the medium-light aviation obstruction light, a reflective LED having a structure in which a reflective lens is added to each LED is employed, so that the number of LEDs arranged is suppressed as much as possible and the light distribution characteristics are also satisfied.

  Japanese Patent No. 4050652   Japanese Patent Publication No. 8-24001   JP 2003-68110 A

  As described above, a conventional medium-light aviation obstacle light using an LED as a light source is disclosed in Patent Document 3, but such a medium-light aviation obstacle light has the following problems.

  The low-light aviation obstacle light of Patent Document 1 uses about 150 LEDs, but the medium-light aviation obstacle light of Patent Document 3 requires about 4000 LEDs to ensure the light intensity. Since the reflection type LED in which the reflection lens is combined with the LED is used, the number of parts of the light source portion is very large. For this reason, there are problems in that it takes time in the manufacturing process and the product cost increases due to an increase in component costs.

  The size of the medium-light aviation obstacle light in Patent Document 3 is about H550 mm × W450 mm × D450 mm, and the weight is about 40 kg. This is about 12 times the volume and about 16 times the weight compared to the low-light aeronautical obstacle light of Patent Document 1. For this reason, there is a problem that it is extremely difficult to transport and attach to high places.

  Because of these problems, the medium-light aviation obstruction light that employs the LED as the light source as in Patent Document 3 is not in widespread use, and an incandescent light bulb type with high power consumption is still employed.

  For the reasons described above, the object of the present invention is to save energy, reduce the number of parts, easily assemble and reduce the manufacturing cost, and are small, lightweight and easy to carry. Is to provide obstacle lights.)

In order to solve the above problems,
A base part having a structure attachable to a high-rise building, a light source part formed by arranging a plurality of light emitting elements, and a structure that covers the light source part and is detachable from the base part. In the aviation obstacle light composed of a cover part,
The light source unit includes a main light source unit including a light emitting element and a rod lens that collects irradiation light emitted from the light emitting element to the outside and diffuses it in the horizontal direction. An aircraft obstacle light characterized by having an auxiliary light source unit that irradiates vertically .

  According to the aviation obstacle light of the present invention, the effects (1) to (6) are obtained.

(1) Light distribution characteristics Because the light-emitting element of the light source section uses a chip-type LED that has a very high luminance and a small light-emitting area compared to a conventional bullet-type LED, it has a structure with a small number of arrangements, but it is an aircraft obstacle light It is possible to satisfy the light intensity (especially the red type medium-light aviation obstacle light). In addition, the rod lens used for the main light source unit has a very short focal position compared to ordinary lenses, so it is particularly suitable for deriving the light distribution characteristics in the vertical direction (vertical direction) required for aviation obstacle lights. In addition, the light distribution characteristics as a whole in the horizontal direction and the vertical direction can also be satisfied. Furthermore, by providing an auxiliary light source unit that irradiates the light source unit in the horizontal direction and the vertical direction, it is possible to compensate for uneven irradiation in the horizontal direction that occurs in the gaps between the main light source units .

(2) Low power consumption Compared with the conventional type (LED + reflecting lens) aviation obstruction light described in Patent Document 3, the number of LEDs is remarkably small, so a significant reduction in power consumption can be realized.

(3) Size Since the parts to be used are small and the number of parts is small, compared with conventional aviation obstruction lights (for example, LED + reflector lens type and incandescent light bulb type of Patent Document 3) H270 mm × W320 mm × D320 mm).

(4) Weight Since the parts to be used are small and the number of parts is small, the weight (for example, 40 kg.) Of the conventional aviation obstacle light (for example, LED + reflector lens type or incandescent light bulb type in Patent Document 3) is used. The weight can be reduced to about 1/4 (for example, 10 kg).

(5) Cost As described in (2), the operation cost can be reduced because of low power consumption. Furthermore, since the rod lens can be formed by cutting an inexpensive cylindrical rod such as glass or plastic, member costs and manufacturing costs can be reduced.

(6) Improving workability of installation / maintenance As mentioned in (4), since it is lightweight, the transportability when installing it at a high place such as a steel tower is greatly improved, and the burden on the worker who performs the installation work is reduced. Can be greatly reduced.

  FIG. 1 is a perspective view showing an aircraft obstacle light according to the present invention.   FIG. 2 is a perspective view showing the main light source unit of the aircraft obstacle light according to the present invention.   FIG. 3 is a cross-sectional view for explaining the light distribution characteristics of the main light source unit of the aircraft obstacle light of the present invention.   FIG. 4 is a perspective view showing an auxiliary light source unit of an aircraft obstacle light according to the present invention.   FIG. 5 is a side view for explaining the light distribution characteristics of the auxiliary light source unit of the aircraft obstacle light according to the present invention.

  FIG. 1 is a perspective view showing an aircraft obstacle light according to the present invention. The aircraft obstacle light in FIG. 1 includes a base part, a light source part, and a cover part.

  A is a base part, which is formed of a solid metal material such as stainless steel, and has a box shape with a hollow structure inside. An attachment part 1 and an attachment hole 2 are formed in the lower part of the base part A, so that the attachment to a high-rise building or the like is possible. Further, a power source is built in the hollow portion of the base portion A, and is connected to a light source portion B described later and supplied with power.

  B is a light source unit, and the main light source unit 3 (3-1, 3-2,..., 3-6) and the auxiliary light source unit 11 (11-1, 11-2,..., 11- 6) and a lid 16. The light source unit B is configured by using a plurality of sets (for example, 6 sets) of a set of the main light source unit 3 and the auxiliary light source unit 11, and is disposed on the upper part of the base unit A. And the auxiliary light source units 11 are alternately arranged at equal intervals and on the same circumference.

  The lid 16 is joined to the upper part of the auxiliary light source unit 11 and has a function of fixing the auxiliary light source units 11 (11-1 to 11-6). The main light source unit 3 and the auxiliary light source unit 11 will be described in detail later.

  C is a cover part, which is formed of a transparent resin or glass. The cover part C has a substantially bowl shape and covers the light source part B. Further, the cover portion C is formed with a fitting portion 17 and is screwed to the base portion A so that the cover portion C and the base portion A are firmly fixed, so that the light source portion B is exposed to wind and rain. It is a thing that prevents it.

  Next, the main light source unit 3 (3-1) disposed in the light source unit B will be described. FIG. 2 is a perspective view showing the main light source unit of the aircraft obstacle light according to the present invention.

  The main light source unit 3-1 includes an L-shaped fixing member 7, a light emitting element 4, a substrate 5, a wiring connection portion 6, a rod lens 8, and a clamping member 9.

  A screw hole (not shown) is formed in the bottom portion 7c of the L-shaped fixing member 7, and is screwed and fixed to the upper portion of the base portion A.

  The light emitting element 4 is, for example, a chip-type high-intensity LED, and is disposed on the substrate 5 together with the wiring connection portion 6. In the main light source unit 3-1 according to the first embodiment, the light emitting elements 4 (for example, six) are arranged on the substrate 5 at equal intervals in a horizontal row, and the substrate 5 is screwed to the front surface portion 7 a of the L-shaped fixing member 7. It is worn. The wiring connection part 6 has a function of supplying power to the light emitting elements 4 arranged on the substrate 5 by being connected to the power supply inside the base part A.

  The rod lens 8 is formed of a transparent resin or glass, and is a lens having a cylindrical shape with a radius of about 15 mm and a height of about 110 mm, for example, a circular flat portion on both upper and lower ends, and a curved surface on the side surface. It consists of parts.

  The clamping member 9 has a concave surface portion 9 a having a size comparable to that of the circular plane portion of the rod lens 8. The rod lens 8 is fitted into the concave surface portion 9 a of the clamping member 9, and the clamping member 9 is screwed to the side surface portion 7 b of the L-shaped fixing member 7. Therefore, the rod lens 8 and the L-shaped fixing member 7 are fixed via the clamping member 9. Thus, the light source 4 and the rod lens 8 disposed on the L-shaped fixing member 7 are integrated to constitute the main light source unit 3-1.

  Here, the light distribution characteristic of the main light source unit 3-1 will be described. FIG. 3 is a cross-sectional view for explaining the light distribution characteristics of the main light source unit of the aircraft obstacle light according to the present invention, in which the main light source unit 3-1 shown in FIG. 2 is cut from S to S ′. The cross-section at the time is seen from the lateral direction.

  In the main light source unit 3-1, the light emitting element 4 is disposed in the vicinity of the focal point of the rod lens 8. Thereby, the light emitted from the light emitting element 4 with a slight spread is incident on the inside of the rod lens 8 from the curved surface inside the rod lens 8 installed on the front side (the side where the light emitting element is disposed). The incident light is refracted inside the rod lens 8 and then becomes substantially parallel light (H1 to H2) from the outside of the rod lens 8 (on the side opposite to the side where the light emitting element is disposed). Emitted.

  The medium-light aviation obstruction light requires a strong light intensity especially in the horizontal direction. Therefore, by forming the main light source unit 3-1 in which the rod lens 8 is provided in front of the light-emitting element 4, the light-emitting element 4 is irradiated. The light can be adjusted to substantially parallel light (H1 to H2), thereby satisfying the light distribution characteristics desired for the medium-light aviation obstacle light.

  In addition, since the arrangement | positioning position etc. of the rod lens 8 and the light emitting element 4 in the main light source unit 3-1 differ also with the diameter of the rod lens 8, a material, the kind of light emitting element 4, a number, a position, etc., desired light distribution It adjusts suitably so that it may suit. For example, fine adjustment of the light emitting element 4 from front to back, up, down, left and right can be made as appropriate to suit the light distribution characteristics in the vertical direction.

  Further, the main light source units 3-2 to 3-6 are the same as the main light source unit 3-1 described above, and thus the description thereof is omitted here.

  Next, the auxiliary light source unit 11 (11-1) disposed in the light source unit B will be described. FIG. 4 is a perspective view showing an auxiliary light source unit of an aircraft obstacle light according to the present invention.

  The auxiliary light source unit 11-1 includes a fixing member 12, a light emitting element 13, a substrate 14, and a wiring connection portion 15.

  The fixing member 12 includes an upper part 12a, an inclined part 12b, a lower part 12c, and a bottom part 12d. A screw hole (not shown) is formed in the bottom portion 12d, and is screwed and fixed to the upper portion of the base portion A. The inclined portion 12b of the fixing member 12 is provided with a notch portion 12e. The notch portion 12e is straddled by a U-shaped portion (not shown) provided on the lower surface of the lid body 16. And has a function of joining both members. Moreover, the screw hole provided in the upper part 12a has a function which screws together with the cover body 16 and fixes both members.

  The light-emitting element 13 is, for example, a chip-type high-intensity LED similar to the main light source unit 3-1 described above, and is disposed on the substrate 14 together with the wiring connection portion 15. In the auxiliary light source unit 11-1 for the aviation obstacle light according to the first embodiment, the light emitting elements 13 (for example, two) are disposed on the substrate 14, and the substrate 14 is screwed to the front surface of the inclined portion 12 b of the fixing member 12. Yes. The wiring connection portion 15 has a function of supplying power to the light emitting element 13 disposed on the substrate 14 by being connected to the power supply inside the base portion A.

  Here, the light distribution characteristic of the auxiliary light source unit 11-1 will be described. FIG. 5 is a side view for explaining the light distribution characteristics of the auxiliary light source unit of the aircraft obstacle light according to the present invention.

  The auxiliary light source unit 11-1 includes an inclined portion 12b having an inclination angle of about 60 degrees, and by arranging the light emitting element 13 on the front surface of the inclined portion 12b, the light emitted from the light emitting element 13 is vertically directed. (V1 to V2) is irradiated. Furthermore, since the auxiliary light source unit 11-1 is arranged between the main light source units 3, it has a function of compensating for uneven irradiation in the horizontal direction that occurs in the gaps between the main light source units 3.

  Further, since the medium-light aviation obstacle light needs to satisfy the light distribution characteristics in the vertical direction in addition to the horizontal direction, the type and number of the light-emitting elements 13 disposed in the auxiliary light source unit 11-1 and the inclination of the fixing member 12 are used. By appropriately adjusting the angle, it is possible to easily adjust the light distribution characteristics desired for a medium-light aeronautical obstacle light.

  Therefore, the type and number of the light emitting elements 13 of the auxiliary light source unit 11-1 and the inclination angle of the fixing member 12 are not limited to the present embodiment, and can be adjusted to suit a desired light distribution.

  Further, the auxiliary light source units 11-2 to 11-6 are the same as the above-described auxiliary light source unit 11-1, and thus the description thereof is omitted here.

(Effect of Example 1)
According to the aviation obstruction light of the first embodiment, there are effects (I) to (VI).

(1) Light distribution characteristics Since the light-emitting elements 4 and 13 of the light source section B are chip-type LEDs having extremely high luminance and a small light-emitting area compared to conventional bullet-type LEDs, the structure has a small number of arrangements. The light intensity of the aviation obstacle light (particularly the red type medium intensity aviation obstacle light) L can be satisfied. Further, the rod lens 8 used for the main light source unit 3 has a very short focal position as compared with a general lens, and therefore, in particular, in order to derive the light distribution characteristic in the vertical direction (vertical direction) required for the aviation obstacle light L. It is suitable and can also satisfy the light distribution characteristics in the horizontal and vertical directions as a whole. Furthermore, by providing the auxiliary light source unit 11 that irradiates the light source part B in the horizontal direction and the vertical direction, it is possible to compensate for the horizontal irradiation unevenness that occurs in the gaps between the main light source units 3.

(II) Low power consumption Compared with the conventional type (LED + reflecting lens) aviation obstruction light described in Patent Document 3, the number of LEDs is remarkably small, so a significant reduction in power consumption can be realized.

(III) Size Since the parts to be used are small and the number of parts is small, the size is significantly reduced (for example, compared to conventional aviation obstruction lights (for example, LED + reflector lens type and incandescent light bulb type of Patent Document 3)) H270 mm × W320 mm × D320 mm).

(IV) Weight Since the parts to be used are small and the number of parts is small, the weight (for example, 40 kg.) Of a conventional aviation obstacle light (for example, LED + reflector lens type or incandescent light bulb type in Patent Document 3) is used. The weight can be reduced to about 1/4 (for example, 10 kg).

(V) Cost As described in (II), the operation cost can be reduced because of low power consumption. Furthermore, since the rod lens can be formed by cutting an inexpensive cylindrical rod such as glass or plastic, member costs and manufacturing costs can be reduced.

(VI) Improving workability of installation / maintenance As mentioned in (IV), because it is lightweight, the transportability when installing in high places such as steel towers is greatly improved, and the burden on the workers who perform the installation work is reduced. Can be greatly reduced.

(Modification)
The embodiment of the present invention is not limited to the first embodiment described above, and various modifications are possible. Examples of this modification include the following (a) to (b).

  (A) In Example 1, although chip type LED is used for the light emitting elements 4 and 13, other light emitting elements may be used.

  (B) In the first embodiment, six sets of the main light source unit 3 and the auxiliary light source unit 11 are arranged, but the number of other sets (for example, a plurality of sets such as 8 sets, 12 sets, etc.) is used. May be.

  (C) In the main light source unit 3 of the first embodiment, six light emitting elements 4 are arranged for one rod lens 8, but other numbers (for example, five) are provided for one rod lens 8. , A plurality of 8 etc.).

  (D) The main light source unit 3 of the first embodiment may be configured by combining one light emitting element 4 with respect to one rod lens 8.

  (E) The rod lens 8 of Example 1 is a cylindrical lens (a lens having a shape obtained by dividing a cylindrical rod in the axial direction) or a Fresnel lens (a flat plate or a curved plate having a plurality of steps in a sawtooth wave shape). You may change into the lens which formed the surface.

A base part B light source part C cover part L aviation obstacle light S, S 'cutting line 1 attachment part 2 attachment hole 3 main light source unit 3-1 to 3-6 main light source unit 4 light emitting element 5 substrate 6 wiring connection Part 7 L-type fixing member 7a Front part 7b Side part 7c Bottom part 8 Rod lens 9 Holding member 9a Concave part 11 Auxiliary light source unit 11-1 to 11-6 Auxiliary light source unit 12 Fixing member 12a Upper part 12b Inclined part 12c Lower part 12d Bottom part 12e Notch portion 13 Light emitting element 14 Substrate 15 Wiring connection portion 16 Lid 17 Fitting portion

Claims (3)

A base part having a structure attachable to a high-rise building, a light source part formed by arranging a plurality of light emitting elements, and a structure that covers the light source part and is detachable from the base part. In the aviation obstacle light composed of a cover part,
The light source unit includes a main light source unit including a light emitting element and a rod lens that collects irradiation light emitted from the light emitting element to the outside and diffuses it in the horizontal direction. An aviation obstruction light having an auxiliary light source unit that irradiates vertically . The light source unit is configured by arranging a plurality of main light source units and a plurality of auxiliary light source units on the same circumference, and alternately arranging the main light source units and the auxiliary light source units. The aviation obstacle light according to claim 1, wherein The aviation obstacle light according to claim 1 or 2, wherein the rod lens is formed of a transparent resin or glass .

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