Lamps and lighting fixtures

Abstract

To provide a lighting fixture that restrains the lighting fixture from falling from a pole, and a luminaire.SOLUTION: A lighting fixture 1 comprises a lighting fixture body 10, a metal plate 20 protruding to the outside of the lighting fixture body 10, and a fall prevention member 30 rockably fixed to the metal plate 20. The lighting fixture body 10 comprises a light source 11, and an adapter part 120 capable of fixing a pole 2 having a cylindrical shape. The adapter part 120 comprises an opening 120a into which one end of the pole 2 can be inserted. The metal plate 20 protrudes to the outside of the lighting fixture body 10 from the opening 120a. The fall prevention member 30 comprises a fall prevention rod 300 thinner than the maximum width of the opening 120a, and a connection member 310 for rockably fixing the fall prevention rod 300 to the metal plate 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a lighting fixture provided at an end of a pole and a lighting apparatus having a lighting fixture provided at an end of a pole.

Background Art

[0002] Conventionally, lighting fixtures provided at the ends of poles are known. For example, Patent Document 1 discloses an adapter having a cylindrical mounting portion to which a lighting fixture can be attached and which is fixed to a pole by inserting the upper end of the pole. In the adapter described in Patent Document 1, the pole has a cylindrical joint portion that fits into the mounting portion of the adapter. The joint portion has a predetermined height in the vertical direction. The lighting fixture is fixed to the pole by fitting the mounting portion and the adapter to which the lighting fixture is attached.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the above Patent Document 1, there is a problem that when an external force is applied to the lighting fixture or the adapter, the lighting fixture may be lifted and become unstable.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a lighting fixture and a lighting apparatus that suppress the lighting fixture from falling from the pole.

Means for Solving the Problems

[0006] A lighting fixture according to one aspect of the present disclosure includes a lighting fixture body, a sheet metal protruding outside the lighting fixture body, and a fall prevention member fixed to the sheet metal. The lighting fixture body has a light source and an adapter portion capable of fixing a cylindrical pole. The adapter portion has an opening into which one end of the pole can be inserted. The sheet metal protrudes outside the lighting fixture body from the opening. The fall prevention member has a fall prevention rod thinner than the maximum width of the opening and a connecting member that swingably fixes the fall prevention rod to the sheet metal.

[0007] In addition, a lighting apparatus according to one aspect of the present disclosure includes a lighting fixture and a pole, and the lighting fixture is provided at an end of the pole.

Advantages of the Invention

[0008] The lighting fixture and the lighting apparatus according to one aspect of the present disclosure can suppress the lighting fixture from falling from the pole.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0010] Hereinafter, the lighting fixture and the lighting apparatus according to the embodiment will be described with reference to the drawings. Note that, hereinafter The embodiments described are all illustrative or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, the order of the steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present disclosure. In addition, among the components in the following embodiments, the components not described in the independent claims indicating the most general concept are described as optional components.

[0011] Also, each figure is a schematic diagram and is not necessarily drawn precisely. Also, in each figure, for substantially the same configuration, the same reference numerals are used, and duplicate explanations may be omitted or simplified. This is to avoid the description becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. (Embodiment) FIG. 1 is an overall perspective view of a lighting fixture according to an embodiment. FIG. 2 is an overall perspective view of the lighting fixture according to the embodiment excluding the globe. FIG. 3 is an overall vertical cross-sectional view of the lighting fixture according to the embodiment. FIG. 4 is a vertical cross-sectional view of a connecting member according to the embodiment.

[0012] Hereinafter, the lighting fixture and the lighting apparatus according to the embodiment will be described with reference to FIGS. 1 to 4. In FIGS. 1 to 4, only the end portion on the lighting fixture side of the pole 2 described later is shown, and other portions are omitted. Also, in FIGS. 1 to 4, the longitudinal direction of the pole 2 is defined as the vertical direction, and the plane with the vertical direction as the normal direction is defined as the horizontal plane.

[0013] As shown in FIG. 1, the lighting fixture 1 includes a lighting fixture main body 10, a sheet metal 20 protruding outside the lighting fixture main body 10, and a fall prevention member 30 fixed to the sheet metal 20. The lighting fixture main body 10 has a light source 11, a base 12, a top plate portion 13, and a globe 14. The globe 14 is made of a light-transmitting member such as glass or resin, and diffuses and transmits the light emitted by the light source 11 to the outside of the lighting fixture main body 10. Also, the lighting apparatus 3 according to the embodiment includes the lighting fixture 1 and the pole 2, and is a street lamp having the lighting fixture 1 provided at the end of the pole 2.

[0014] The base 12 has an adapter portion 120 and a columnar portion 121. The adapter portion 120 has an opening 120a with one end open, a pole contact portion 120b, and a pole fixing portion 120c. In the embodiment, one end of the adapter portion 120 opposite to the opening 120a is closed.

[0015] The method of fixing the pole 2 in the adapter part 120 will be described in detail. First, one end of the cylindrical pole 2 is inserted into the opening 120a. When the pole 2 is fully inserted, the inserted end of the pole 2 comes into contact with the pole contact part 120b. On the inner peripheral surface of the pole contact part 120b, protrusions with different protrusion amounts are formed in a stepped shape. In the embodiment, the centers of the stepped side surfaces are substantially the same in the horizontal cross-section. When the pole 2 is fixed, the side surface of the pole 2 is arranged along the side surface of the pole contact part 120b. In the embodiment, the pole contact part 120b has three side surfaces. Therefore, at least three types of poles with different outer diameters can be inserted.

[0016] However, for the pole contact part 120b, it is only necessary that the side surface is along the side surface of the pole 2, and the shape of the protrusion and the side surface shape are not limited to the embodiment. Also, the protrusion is not limited to being stepped. Further, even when a stepped protrusion is adopted, the number of steps is not limited to three steps in the embodiment.

[0017] Next, the pole 2 inserted into the opening 120a is fixed by the pole fixing part 120c. In the embodiment, the pole fixing part 120c has a screw that is long in one direction. The screw of the pole fixing part 120c is attached to the pole 2 so as to be movable in the radial direction of the pole 2. Therefore, by tightening the screw of the pole fixing part 120c, the screw of the pole fixing part 120c presses the pole 2 from the side surface, and the pole 2 can be fixed.

[0018] In the embodiment, two pole contact parts 120b are provided. Therefore, the pole 2 is fixed at three points, namely, two or more pole contact parts 120b and the pole fixing part 120c. Therefore, the lighting fixture 1 according to the embodiment can make the lighting fixture main body 10 more stable. Note that the number of the pole contact parts 120b is not limited to two, and may be one or three or more.

[0019] The light source 11 is, for example, a solid-state light-emitting element. Further, the light source 11 has a drive circuit that is mounted on a substrate and drives the solid-state light-emitting element. As shown in FIG. 2, the light source 11 is fixed to the base 12 via a light source attachment portion 110. In the present embodiment, the light source attachment portion 110 fixes the light source 11 so as to face the inner surface of the glove 14.

[0020] The light source attachment portion 110 has a screw for fixing the light source 11 and a screw for attaching the light source attachment portion 110 to the base 12. Further, the solid-state light-emitting element included in the light source 11 is, for example, an LED (Light Emitting Diode).

[0021] The columnar portion 121 has a side surface 122 and is surrounded by the glove 14. In the embodiment, the light source 11 is attached to the side surface 122 via the light source attachment portion 110. At this time, the light source 11, the light source attachment portion 110, the columnar portion 121, and the side surface 122 are thermally continuous. More specifically, at least a part of the light source attachment portion 110, the columnar portion 121, and the side surface 122 is formed of a heat-conductive member, and they are in thermal contact with each other. The heat-conductive member is, for example, a metal such as an aluminum alloy. Further, the light source 11 has a power supply line (not shown) and can emit light by receiving power supply from the outside via the power supply line. In the embodiment, the power supply line has a connection terminal that can be connected to one end of an electric wire that supplies power from the outside. The power supply line is, for example, a lead wire.

[0022] As shown in FIG. 3, the top plate portion 13 has a heat radiating portion 140. The heat radiating portion 140 is provided above the top plate portion 13 and is thermally connected to the columnar portion 121. As described above, since the light source 11 and the columnar portion 121 are thermally connected, the heat radiating portion 140 can radiate the heat generated by the light source 11. In the embodiment, the heat radiating portion 140 is a plurality of heat radiating fins arranged radially. Also, the heat radiating portion 140 may be integrally formed with at least a part of the columnar portion 121. At this time, the heat radiating portion 140 can efficiently radiate the heat generated by the light source 11. Further, the top plate portion 13 may further have a screw portion to which an external member can be attached.

[0023] The sheet metal 20 protrudes outside the lamp body 10 from the opening 120a. The sheet metal 20 is attached to the columnar portion 121 and can attach a power supply line for supplying power to the light source 11. In the embodiment, the power supply line connected to the light source 11 and the power supply line connected to an external power source are sandwiched by an annular member that can be screwed onto the sheet metal 20. And the terminal of the power supply line connected to the light source 11 and the terminal of the power supply line connected to an external power source are connected on the sheet metal 20.

[0024] Therefore, in the lamp 1 according to the embodiment, it is not necessary to separately provide a member for fixing the power supply line, and the structure can be simplified. Also, since wiring can be performed on the sheet metal 20, the wiring work is easy. Also, it is possible to facilitate the introduction of the power supply line into the pole 2. Note that the method of fixing the power supply line onto the sheet metal 20 is not limited to the above. For example, clamping using an elastic body or the like may be used.

[0025] Also, a fall prevention member 30 is fixed to the sheet metal 20 so as to be swingable. In the embodiment, the sheet metal 20 has a through hole 211. The through hole 211 is more preferably provided in a portion of the sheet metal 20 that protrudes outside the lamp body 10. At this time, since the sheet metal 20 has less bending and swaying in the sheet metal long portion 210 compared to a wire or the like, it is possible to facilitate the introduction of the sheet metal 20 into the pole 2.

[0026] In the embodiment, the sheet metal 20 is formed by bending a single sheet of metal into a U-shape, and includes a sheet metal bottom portion 200 attached to the columnar portion 121 and a pair of vertically long sheet metal long portions 210. With this configuration, the lamp fixture 1 according to the embodiment can increase the strength of the sheet metal 20. At this time, it is preferable that at least one of the sheet metal long portions 210 protrudes outside the lamp fixture main body 10.

[0027] The fall prevention member 30 includes a fall prevention rod 300 and a connection member 310. The fall prevention rod 300 is fixed to at least one of the sheet metal long portions 210 by the connection member 310.

[0028] As shown in FIG. 4, the fall prevention rod 300 is a rod-shaped member thinner than the maximum width of the opening 120a, and has a through hole 301 at one end. In the embodiment, since the fall prevention rod 300 is thinner than the inner diameter of the pole 2, the fall prevention rod 300 can be introduced inside the pole 2.

[0029] The connection member 310 is an annular member elongated in one direction. The length in the longitudinal direction is shorter than the maximum width of the opening 120a. In the embodiment, the connection member 310 has a length in the longitudinal direction shorter than the inner diameter of the pole 2. Therefore, the fall prevention member 30 is less likely to get caught on the pole 2, and the fall prevention member 30 can be easily inserted into the pole 2.

[0030] As described above, the sheet metal 20 and the fall prevention rod 300 each have through holes 211 and 301. The connection member 310 fixes the fall prevention rod 300 to the sheet metal 20 at an adjustable angle by passing through the through holes 211 and 301. In the embodiment, the connection member 310 has an opening / closing structure in which a part of the ring opens and closes. Therefore, the connection member 310 can pass through the through holes 211 and 301 with the opening / closing structure open, and fix the fall prevention rod 300 to the sheet metal 20 at an adjustable angle by closing the opening / closing structure.

[0031] Here, the behavior of the lighting fixture 1 when an excessive external force is applied will be described in detail. When a vertically upward external force is applied, the lighting fixture 1 may be lifted. At this time, since the lighting fixture 1 has the fall prevention member 30, a vertically downward load due to the weight of the fall prevention member 30 is applied to the lighting fixture 1. Further, even when the lighting fixture 1 is lifted too much and detaches from the pole 2, the fall prevention rod 300 is caught inside the pole 2. Therefore, the fall prevention member 30 can suppress the fall of the lighting fixture 1 from the pole 2.

[0032] As described above, the connecting member 310 fixes the fall prevention rod 300 to the sheet metal 20 so as to be freely angled. Therefore, when the lighting fixture 1 detaches from the pole 2 and the fall prevention rod 300 is caught inside the pole 2, the external force applied to the fall prevention rod 300 or the connecting member 310 can be easily released, and the breakage of the fall prevention member 30 can be suppressed. (Effect) Here, once again, the key points of the lighting fixture and the lighting apparatus according to the embodiment will be described.

[0033] The lighting fixture 1 according to the embodiment includes a lighting fixture main body 10, a sheet metal 20 protruding outside the lighting fixture main body 10, and a fall prevention member 30 swingably fixed to the sheet metal 20. The lighting fixture main body 10 has a light source 11 and an adapter portion 120 to which a cylindrical pole 2 can be fixed. The adapter portion 120 has an opening 120a into which one end of the pole 2 can be inserted. The sheet metal 20 protrudes outside the lighting fixture main body 10 from the opening 120a. The fall prevention member 30 has a fall prevention rod 300 that is thinner than the maximum width of the opening 120a, and a connecting member 310 that swingably fixes the fall prevention rod 300 to the sheet metal 20.

[0034] The lighting fixture 1 having the above-described configuration can suppress the fall of the lighting fixture 1 from the pole 2.

[0035] Further, in the lighting fixture 1 according to the embodiment, the connecting member 310 may be long in one direction. The length of the connecting member 310 in the long direction may be shorter than the maximum width of the opening 120a.

[0036] The lighting fixture 1 having the above configuration can facilitate the introduction of the fall prevention rod 300 into the pole 2.

[0037] Further, in the lighting fixture 1 according to the embodiment, the sheet metal 20 and the fall prevention rod 300 may each have through holes 211 and 301. The connecting member 310 may be an annular member that connects the sheet metal 20 and the fall prevention rod 300 by passing through the respective through holes 211 and 301.

[0038] When the lighting fixture 1 having the above configuration is detached from the pole 2 and the fall prevention rod 300 is caught inside the pole 2, the external force applied to the fall prevention rod 300 or the connecting member 310 can be easily released, and damage to the fall prevention member 30 can be suppressed. Further, in the lighting fixture 1 according to the embodiment, the sheet metal 20 may have a fixing portion capable of fixing the power supply line to the light source 11.

[0039] The lighting fixture 1 having the above configuration can simplify the structure.

[0040] Further, the lighting fixture 3 according to the embodiment includes the lighting fixture 1 and the pole 2, and the lighting fixture 1 is provided at the end of the pole 2.

[0041] The lighting fixture 3 having the above configuration can suppress the fall of the lighting fixture 1 from the pole 2. (Other Embodiments) As described above, the lighting fixture 1 and the lighting fixture according to the embodiment have been described, but the lighting fixture 1 and the lighting fixture 3 according to the present disclosure are not limited to the embodiment.

[0042] For example, the sheet metal 20 does not necessarily have to be formed by bending a single sheet of plate-shaped metal into a U-shape, and may be long in the vertical direction. For example, the sheet metal 20 may have an L-shape composed of a sheet metal bottom portion attached to the columnar portion 121 and a single sheet metal long portion long in the vertical direction.

[0043] Further, the connecting member 310 does not necessarily have to be an annular member. For example, the connecting member 310 may be composed of a screw having a screw head and a threaded portion, and a nut that engages with the threaded portion. At this time, the inner diameters of the through holes 211 and 301 are longer than the threaded portion and shorter than the outer diameters of the screw head and the nut. Further, the connecting member 310 may be integral with either the sheet metal 20 or the fall prevention bar 300.

[0044] Further, the light source 11 does not necessarily have to be attached to the columnar portion 121 and may be attached to the adapter portion 120. At this time, it is preferable that the adapter portion 120 is thermally connected to the heat dissipation portion 140.

[0045] Further, the light source attachment portion 110 is not an essential component. For example, the light source 11 may be directly attached to the base portion 12 with an adhesive or the like. At this time, the adhesive preferably has thermal conductivity. is preferable.

[0046] Further, the lighting fixture 1 may have components other than the lighting fixture body 10. For example, it may have a cap portion that protects the top plate portion 13. At this time, the cap portion may be fixed to the screw portion of the top plate 13.

Description of Reference Numerals

[0047] 1 Lighting fixture 10 Lighting fixture body 11 Light source 120 Adapter portion 120a Opening 20 Sheet metal 211 Through hole 30 Fall prevention member 300 Fall prevention bar 301 Through hole 310 Connecting member 2 Pole 3 Lighting appliance

Claims

1. A lighting fixture comprising a lighting fixture body, a sheet metal protruding outside the lighting fixture body, and a fall prevention member swingably fixed to the sheet metal. The lighting fixture body has a light source and an adapter portion to which a cylindrical pole can be fixed. The adapter portion has an opening into which one end of the pole can be inserted. The sheet metal protrudes outside the lighting fixture body from the opening. The fall prevention member has a fall prevention rod thinner than the maximum width of the opening, and a connecting member that swingably fixes the fall prevention rod to the sheet metal. Lighting fixture.

2. The connecting member is long in one direction. The length of the connecting member in the longitudinal direction is shorter than the maximum width. The lighting fixture according to Claim 1.

3. The sheet metal and the fall prevention rod each have a through hole. The connecting member is an annular member that connects the sheet metal and the fall prevention rod by passing through each of the through holes. The lighting fixture according to Claim 1 or Claim 2.

4. The sheet metal has a fixing portion to which a power supply line to the light source can be fixed. The lighting fixture according to any one of Claims 1 to 3.

5. A lighting fixture comprising the lighting fixture according to any one of Claims 1 to 4 and a pole, wherein the lighting fixture is provided at an end of the pole. Lighting apparatus.

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