Outdoor lighting fixtures

Abstract

To provide a technology capable of adjusting an upward luminous flux ratio depending on an installation location.SOLUTION: An outdoor lighting fixture has: a substrate on which a light-emitting element is mounted; a light-transmitting cover that houses the substrate; an upper cover provided on an upper part of the light-transmitting cover; and an adjustment member that can adjust an upward light flux ratio, which is a ratio of a light flux directed upward from a horizontal direction to a light flux emitted from the light-emitting element to the surroundings, by moving the upper cover vertically relative to the light-transmitting cover and fixing it.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0005] , , ,<000001​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The first outdoor lighting fixture of the present invention comprises a substrate on which a light-emitting element is mounted, a translucent cover housing the substrate, an upper cover provided on the upper part of the translucent cover, and an adjustment member that can adjust the upward luminous flux ratio, which is the ratio of the luminous flux directed upward rather than horizontally among the luminous flux irradiated from the light-emitting element to the surroundings, by moving and fixing the upper cover in a vertical direction relative to the translucent cover.

[0008] The second outdoor lighting fixture of the present invention, in the first invention described above, comprises an adjustment member comprising a first member and a second member for adjusting the height of the first member, wherein the adjustment member can adjust the upward luminous flux ratio by combining the first member and the second member.

[0009] In the third outdoor lighting fixture of the present invention, the upper cover can be fixed in a first position using only the first member and in a second position using both the first and second members, as described in the second invention.

[0010] The fourth outdoor lighting fixture of the present invention, in the first invention described above, has an angle switching member that allows for further adjustment of the upward luminous flux ratio by fixing the substrate to a mounting plate provided horizontally, or by fixing it at an angle with respect to the mounting plate.

[0011] The fifth outdoor lighting fixture of the present invention is, in the first invention described above, the upper cover has a screw-fastened portion that protrudes above the surrounding surface, and the upper cover is fixed to the adjustment member by the screw-fastened portion. [Effects of the Invention]

[0012] In this invention, the upward luminous flux ratio can be adjusted depending on the installation location. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 shows an outdoor lighting fixture according to the present invention. [Figure 2]Figure 2(A) is a perspective view of the outdoor lighting fixture according to the present invention, viewed from above, and Figure 2(B) is a perspective view of the outdoor lighting fixture according to the present invention, viewed from below. [Figure 3] Figure 3 is a cross-sectional view of the outdoor lighting fixture according to the present invention. [Figure 4] Figures 4(A) and 4(B) show the adjustment members used in the outdoor lighting fixture according to the present invention. [Figure 5] Figure 5 is a front view of the outdoor lighting fixture according to the present invention installed on a pole. [Figure 6] Figure 6 is a diagram illustrating the upward luminous flux ratio. [Figure 7] Figure 7(A) is a front view of an outdoor lighting fixture when the upward luminous flux ratio is set to 0%, Figure 7(B) is a cross-sectional view of Figure 7(A), and Figure 7(C) is a perspective view of Figure 7(A). [Figure 8] Figure 8(A) is a front view of an outdoor lighting fixture with an upward luminous flux ratio of 5%, Figure 8(B) is a cross-sectional view of Figure 8(A), and Figure 8(C) is a perspective view of Figure 8(A). [Figure 9] Figure 9(A) is a front view of an outdoor lighting fixture with an upward luminous flux ratio of 15%, Figure 9(B) is a cross-sectional view of Figure 9(A), and Figure 9(C) is a perspective view of Figure 9(A). [Figure 10] Figure 10 is a partially enlarged view of the area around the fixing part that secures the position of the upper cover of the outdoor lighting fixture according to the present invention. [Modes for carrying out the invention]

[0014] One form of an outdoor lighting fixture according to the present invention comprises a substrate on which a light-emitting element is mounted, a translucent cover housing the substrate, an upper cover provided on the upper part of the translucent cover, and an adjustment member that can adjust the upward luminous flux ratio, which is the ratio of the luminous flux directed upward rather than horizontally among the luminous flux irradiated from the light-emitting element to the surroundings, by moving and fixing the upper cover in a vertical direction relative to the translucent cover. The specific embodiments will be described below with reference to the drawings.

[0015] The outdoor lighting fixture 1 according to the present invention (hereinafter referred to as the lighting fixture 1) is a lighting fixture 1 attached to the tip of a pole, as shown in FIGS. 1 to 3 and the like, and includes a lighting unit 10 and a holder 12 as a pole receiving portion into which the tip of the pole is inserted.

[0016] The lighting unit 10 includes a globe 14 which is a translucent cover, and an upper cover 16 provided on the upper part of the globe 14. The globe 14 is made of, for example, resin and has translucency and light diffusing properties. An opening 14a is formed at the center of the globe 14 to penetrate a part of the holder 12.

[0017] The holder 12 is cylindrical. Protrusions 12a protruding to the outer peripheral side are formed around the holder 12 at substantially equal intervals. Further, the protrusions 12a are configured such that the wall thickness of the side surface is thinner below than above on the globe 14 side.

[0018] Further, a holding portion 30 for holding the periphery of the opening 14a of the globe 14 is formed on the upper surface of the protrusion 12a. The globe 14 is screwed to the holding portion 30. That is, the globe 14 is screwed and fixed while being held by the holding portion 30.

[0019] A plurality of stepped portions for supporting the upper end of the inserted pole are formed above the inside of the holder 12. Specifically, stepped portions 20a, 20b, 20c, and 20d are formed inside the holder 12 in order from the outside. The stepped portion 20a and the stepped portion 20d have the same height. Also, the stepped portion 20b and the stepped portion 20c have the same height and are arranged above the stepped portion 20a and the stepped portion 20d.

[0020] By configuring the stepped portions 20a to 20d in a four-step configuration of two outer steps and two inner steps and configuring the height positions of each in two steps, the lighting fixture 1 can be fixed corresponding to poles 22 of a plurality of diameters.

[0021] Furthermore, a power line fixing bracket 24, which is connected to the power supply unit provided inside the pole 22, is fixed to the upper surface 19c formed below the stepped portions 20a to 20d in the inner center of the holder 12.

[0022] As shown in Figure 1, the holder 12 has a fixing portion 26a on its side for use when the diameter of the pole 22 is less than or equal to a predetermined diameter, and a fixing portion 26b for use when the diameter of the pole 22 is greater than the predetermined diameter. The fixing portion 26a is provided in a location without a protruding portion 12a, and the fixing portion 26b is provided on the protruding portion 12a. That is, the fixing portion 26b is provided in a position that protrudes further outward than the fixing portion 26a. Three fixing portions 26a and three fixing portions 26b are provided, and they are provided alternately and at approximately equal intervals on approximately the same diameter. The lighting fixture 1 is configured to be fixed to the pole 22 inserted inside the holder 12 by three fixing portions 26a or three fixing portions 26b.

[0023] Furthermore, stepped portions 21a to 21d are formed on the outside of the holder 12 at positions corresponding to the stepped portions 20a to 20d.

[0024] The mounting plate 34 is, for example, disc-shaped, and has a hole 34a formed approximately in the center for a portion of the holder 12 to pass through. The hole 34a is configured to pass through between the outer surface 23a that constitutes the stepped portion 21a of the holder 12 and the outer surface 23b that constitutes the stepped portion 21b. Multiple power supply boards 38 are fixed to the upper surface of the mounting plate 34. The power supply boards 38 are equipped with components for converting the AC voltage supplied from the power supply unit via the power line fixing bracket 24 into a DC voltage.

[0025] Furthermore, a mounting plate 40, which serves as an angle switching member, is fixed to the outer circumference of the lower surface of the mounting plate 34. The mounting plate 40 is flat and has a bent portion 40a at its end. By fixing this bent portion 40a to the lower surface of the mounting plate 34, the mounting plate 40 is bent at an acute angle relative to the mounting plate 34, and is configured to be fixed at an inclination relative to the mounting plate 34. In addition, as will be described in detail later, by fixing the side of the mounting plate 40 that does not have the bent portion 40a to the lower surface of the mounting plate 34, the mounting plate 40 is configured to be positioned on the back surface of the mounting plate 34 and on the back surface of the power supply board 38.

[0026] An LED substrate 44, on which multiple light-emitting elements (LEDs 42) are mounted, is fixed to the lower surface of the mounting plate 40 by screws. The mounting plate 40 on which the LED substrate 44 is mounted is fixed to the mounting plate 34, which is provided horizontally, on the side that is not bent at the bent portion 40a, or it is fixed at an angle to the mounting plate 34, which is provided horizontally, by the bent portion 40a, and the mounting angle of the LED substrate 44 relative to the mounting plate 34 can be adjusted, thereby adjusting the upward luminous flux ratio.

[0027] Furthermore, an adjustment member 50 is provided on the upper surface of the mounting plate 34, which allows the position of the upper cover 16 relative to the globe 14 to be adjusted vertically. The adjustment member 50 has a first member 51 as a first member and a second member 52 as a second member that adjusts the height of the first member 51. The first member 51 and the second member 52 are each elongated thin plate-shaped members of the same width, formed by folding them multiple times substantially perpendicular to the longitudinal direction.

[0028] As shown in Figures 3 and 4(A), the first member 51 is composed of a bent portion 51a bent inward approximately perpendicularly, a bent portion 51b bent outward approximately perpendicularly, a bent portion 51c bent inward approximately perpendicularly, a bent portion 51d bent outward approximately perpendicularly, a bent portion 51e bent outward approximately perpendicularly, a bent portion 51f bent inward approximately perpendicularly, a bent portion 51g bent outward approximately perpendicularly, and a bent portion 51h bent inward approximately perpendicularly. The plane from one end of the first member 51 to bent portion 51a and the plane from the other end to bent portion 51h are used as legs 53a and 53b, respectively. The plane between bent portion 51d and bent portion 51e is used as a fixing portion 54 fixed to the upper cover 16. The fixing portion 54 has screw holes and is configured to be screwed to the upper cover 16.

[0029] As shown in Figures 3 and 4(B), the second member 52 is composed of a bent portion 52a bent inward approximately perpendicularly, a bent portion 52b bent outward approximately perpendicularly, a bent portion 52c bent outward approximately perpendicularly, and a bent portion 52d bent inward approximately perpendicularly. The plane from one end of the second member 52 to bent portion 52a and the plane from the other end to bent portion 52d are used as legs 55a and 55b, respectively. The plane between bent portion 52b and bent portion 52c is used as a support portion 56 that supports the first member 51.

[0030] The length of the support portion 56 of the second member 52 is configured to be longer than the length of the first member 51 from the bent portion 51a to the bent portion 51h, and preferably longer than the length of the first member 51 from one end to the other. Furthermore, the height of the second member 52 (length from bent portion 52a to bent portion 52b, and from bent portion 52d to bent portion 52c) is configured to be lower (shorter) than the height of the first member 51 (length from bent portion 51a to bent portion 51b, and from bent portion 51h to bent portion 51g).

[0031] Furthermore, there are two cases: one in which the upper cover 16 is fixed to a first position using only the first member 51, which will be described later; and another in which the upper cover 16 is fixed to a second position by fixing the legs 53a and 53b of the first member 51 onto the support portion 56 of the second member 52, as shown in Figure 3.

[0032] In other words, the adjustment member 50 can adjust the upward luminous flux ratio by moving the position of the upper cover 16 relative to the globe 14 in the vertical direction, either by using only the first member 51 to fix the upper cover 16 to a first position or by using the first member 51 and the second member 52 to fix the upper cover 16 to a second position.

[0033] In other words, the adjustment member 50 allows adjustment of the upward luminous flux ratio by moving and fixing the upper cover 16 vertically to a first or second position relative to the globe 14. That is, the adjustment member 50 is configured to allow adjustment of the upward luminous flux ratio by a combination of the first member 51 and the second member 52. Here, the upward luminous flux ratio is the ratio of the luminous flux directed upward rather than horizontally out of the luminous flux emitted from the LED 42 to the surroundings.

[0034] Then, the holder 12 is inserted into the opening 14a of the globe 14, and the globe 14 is screwed to the holding portion 30 of the holder 12. Next, the mounting plate 34, to which the power supply board 38, LED board 44, and adjustment member 50 are fixed, is attached to the holder 12 inside the globe 14. Then, the upper cover 16 is attached to the top of the globe 14, and the upper cover 16 is fixed by screwing it through the screw holes formed near the center of the upper cover 16 to the fixing portion 54 of the first member 51. As a result, the power supply board 38 and LED board 44 are housed inside the lighting unit 10.

[0035] Next, the upward luminous flux ratio of the lighting fixture 1 will be explained using Figures 5 and 6. Figures 5 and 6 show the lighting fixture 1 installed on the pole 22. An upward luminous flux ratio of 0% indicates that no light is emitted horizontally upward from the lower end of the upper cover 16 (no leakage). An upward luminous flux ratio of 5% indicates that approximately 5% of the light is emitted horizontally upward from the lower end of the upper cover 16. An upward luminous flux ratio of 15% indicates that approximately 15% of the light is emitted horizontally upward from the lower end of the upper cover 16. In other words, in areas where light pollution may occur, the lighting fixture 1 can be installed with an upward luminous flux ratio set to a low value, for example, 0% to 5%. In areas where light pollution is not likely to occur and where a wide area needs to be illuminated, the lighting fixture 1 can be installed with an upward luminous flux ratio set to a high value, for example, 15%.

[0036] Next, the configuration when the lighting fixture 1 is installed on the pole 22 so that the upward luminous flux ratio is 0%, 5%, and 15% will be explained using Figures 7 to 9.

[0037] Figures 7(A) to 7(C) show the configuration of lighting fixture 1 when the upward luminous flux ratio is set to 0%. For explanatory purposes, the power line fixing bracket 24 and the power supply board 38 are omitted in Figures 7(B) and 7(C). The same applies to Figures 8(B) and 8(C), and Figures 9(B) and 9(C) below.

[0038] When the upward luminous flux ratio is to be set to 0%, only the first member 51 is used as the adjustment member 50. The legs 53a and 53b of the first member 51 are fixed to the upper surface of the mounting plate 34. The mounting plate 40 with the LED board 44 attached is fixed to the lower surface of the mounting plate 34 on the side that is not the bent portion 40a. The upper cover 16 is then lowered to the first lower position so that it covers all sides of the globe 14, and the upper cover 16 is fixed by screwing it to the fixing portion 54 of the first member 51.

[0039] Figures 8(A) to 8(C) show the configuration of the lighting fixture 1 when the upward luminous flux ratio is set to 5%. When the upward luminous flux ratio is set to 5%, the first member 51 and the second member 52 are used as the adjustment member 50. The legs 55a and 55b of the second member 52 are fixed to the upper surface of the mounting plate 34, and the legs 53a and 53b of the first member 51 are fixed to the upper surface of the support part 56 of the second member 52. Also, as described above for the case where the upward luminous flux ratio is 0%, the mounting plate 40 with the LED board 44 attached is fixed to the lower surface of the mounting plate 34 on the side that is not the bent part 40a. The upper cover 16 is raised from the first position to the second position above the first position so as to cover a part of the side of the globe 14, and the upper cover 16 is screwed and fixed at the fixing part 54 of the first member 51. In other words, the upper cover 16 is positioned at a second position above the first position where the upward luminous flux ratio is 0%.

[0040] Figures 9(A) to 9(C) show the configuration of the lighting fixture 1 when the upward luminous flux ratio is set to 15%. When the upward luminous flux ratio is set to 15%, the first member 51 and the second member 52 are used as the adjustment member 50, as described above when the upward luminous flux ratio is 5%. The legs 55a and 55b of the second member 52 are fixed to the upper surface of the mounting plate 34, and the legs 53a and 53b of the first member 51 are fixed to the upper surface of the support part 56 of the second member 52. In addition, a mounting plate 40 with the LED board 44 attached is fixed to the outer circumference of the lower surface of the mounting plate 34 by a bent part 40a. The mounting plate 40 is bent at an acute angle relative to the mounting plate 34 and fixed. That is, the mounting angle of the LED board 44 with respect to the horizontal direction is changed from the cases of upward luminous flux ratios of 0% and 5%. This makes it possible to change the direction of the light emitted from the LED 42. Then, the upper cover 16 is screwed and fixed to the fixing portion 54 of the first member 51 so that it covers a part of the side of the globe 14. Here, the position of the upper cover 16 relative to the globe 14 is the same as the second position described above when the upward luminous flux ratio is 5%.

[0041] In other words, the lighting fixture 1 can adjust the upward luminous flux ratio by moving the upper cover 16 vertically up and down relative to the globe 14 and by adjusting the mounting angle of the LED board 44 in the horizontal direction.

[0042] Figure 10 is a magnified view of the area around the fixing part 54 that secures the upper cover 16 in the first or second position.

[0043] A surface 16b is formed at the center of the upper surface of the upper cover 16, projecting upward from the surrounding surface 16a. Surface 16b is formed to project upward diagonally and continuously from the surrounding surface 16a. A screw hole 16c is formed in surface 16b. A protective member 61 with a screw hole is provided on the upper surface of surface 16b. A screw fastening portion 60 is formed when a screw is inserted into the screw hole 16c via the protective member 61. In other words, the upper cover 16 is fixed by screwing it into the fixing portion 54 of the first member 51 using the screw fastening portion 60. This configuration makes it difficult for water to flow into the lighting unit 10 from the screw hole 16c formed in the upper cover 16.

[0044] In other words, compared to the case where the screw hole 16c is at the same height as the surrounding surface of the upper cover 16, it is less susceptible to problems such as water flowing into the lighting unit 10 and causing deterioration of the components.

[0045] In the above embodiment, the case in which the first member 51 and the second member 52 are used as the adjusting member 50 was described as an example, but the present invention is not limited to this and can be applied when a member is made up of three or more members.

[0046] The present invention is not limited to the embodiments described above, and encompasses a range of technical modifications that can be made within the scope of the technical concept of the present invention. [Explanation of Symbols]

[0047] 1 Lighting fixtures 10 Lighting Section 12 holders 14. Gloves (light-transmitting cover) 16 Top cover 22 poles 24 Power cord fixing bracket 30 Holding part 34, 40 Mounting plate 38 Power supply board 42 LED 44 LED boards 50 Adjustment Member 51 First Member 52 Second Member

Claims

1. A substrate on which a light-emitting element is mounted, A translucent cover for housing the aforementioned substrate, An upper cover provided on the upper part of the light-transmitting cover, An adjustment member is provided that allows adjustment of the upward luminous flux ratio, which is the ratio of the luminous flux directed upward rather than horizontally, of the luminous flux irradiated from the light-emitting element to the surroundings, by moving and fixing the upper cover in the vertical direction relative to the light-transmitting cover. Outdoor lighting fixtures with [specific features / features].

2. The adjustment member comprises a first member and a second member for adjusting the height of the first member. The outdoor lighting fixture according to claim 1, wherein the adjusting member is capable of adjusting the upward luminous flux ratio by a combination of the first member and the second member.

3. The outdoor lighting fixture according to claim 2, wherein the upper cover is fixable in a first position using only the first member and in a second position using both the first member and the second member.

4. The outdoor lighting fixture according to claim 1, further comprising an angle switching member that allows the upward luminous flux ratio to be further adjusted by fixing the substrate to a mounting plate provided horizontally, or by fixing it at an angle with respect to the mounting plate.

5. The upper cover has a screw-fastening portion that protrudes above the surrounding surface, The upper cover is fixed to the adjustment member by the screw fastening portion. An outdoor lighting fixture according to claim 1.

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