Lighting fixture

Abstract

To provide a lighting fixture capable of mounting a cone or cover.SOLUTION: A lighting fixture 100 disposed so as to be embedded in an embedding hole, includes a light source 10, a socket 20 in which the light source 10 is mounted, and a cylindrical frame 30 in which the light source 10 and the socket 20 are housed. A cone 70 that forms a light blocking angle for the light source 10, or a cover 80 that covers an opening part of the frame 30 is mounted inside the frame 30.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a lighting fixture embedded and disposed in an embedding hole formed in a surface to be disposed.

Background Art

[0002] Conventionally, a small-diameter lighting fixture (downlight) embedded and disposed in a ceiling embedding hole formed in an indoor ceiling surface is known. In the downlight, a cone may be attached to a frame embedded in the ceiling embedding hole (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] On the other hand, a downlight disposed on an outdoor eaves or the like is also known. In a downlight disposed outdoors, a cover may be attached for waterproofing. Therefore, it is desired to improve the versatility of the downlight by configuring it to be equipped with a cone or a cover.

[0005] Therefore, an object of the present disclosure is to provide a lighting fixture that can be equipped with a cone or a cover.

Means for Solving the Problems

[0006] The lighting fixture according to the present disclosure is a lighting fixture embedded and disposed in an embedding hole, and includes a light source, a socket to which the light source is attached, and a cylindrical frame that houses the light source and the socket. Inside the frame, a cone that forms a light-shielding angle of the light source or a cover that covers an opening on the lower side of the frame is attached.

Effects of the Invention

[0007] According to the lighting fixture of the present disclosure, a cone or a cover can be attached.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0009] Hereinafter, lighting fixtures 100 and 200, which are examples of embodiments, will be described with reference to the drawings. Note that all of the embodiments described below are examples of the present disclosure. Therefore, the numerical values, components, arrangements and connection forms of the components shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the most superior concept of the present disclosure are described as optional components.

[0010] Note that each figure is a schematic diagram and is not necessarily drawn precisely. In each figure, substantially the same components are denoted by the same reference numerals, and duplicate explanations may be omitted or simplified. Also, in this specification, the terms "upper" and "lower" do not necessarily refer to the upward (vertically upward) and downward (vertically downward) directions in an absolute spatial sense.

[0011] Also, the substantially cylindrical frame 30, the cone 70, and the cover 80 may be described according to the axial direction (vertical direction), the circumferential direction, or the radial direction.

[0012] [Overall Configuration of Lighting Fixture (Cone)] The overall configuration of the lighting fixture 100 will be described with reference to FIGS. 1 and 2.

[0013] The lighting fixture 100 is, for example, a downlight that irradiates light downward (toward the floor, ground, wall, etc.). The lighting fixture 100 is disposed, for example, on the ceiling surface of a building. The lighting fixture 100 of the present embodiment is a ceiling-embedded lighting fixture, and is embedded and disposed in a ceiling-embedded hole formed in the ceiling surface, for example. The ceiling-embedded hole of the present embodiment is circular in plan view. Also, the lighting fixture 100 of the present embodiment is a small-diameter lighting fixture disposed in a small-diameter ceiling-embedded hole (e.g., 75 mm Φ). However, the lighting fixture of the present disclosure may be disposed on an attachment surface other than the ceiling surface. Also, the present disclosure may be applied to lighting fixtures other than ceiling-embedded lighting fixtures, and may be applied to lighting fixtures other than downlights.

[0014] The lighting fixture 100 includes a light source 10, a socket 20 to which the light source 10 is attached, a cylindrical frame 30 that houses the light source 10 and the socket 20, a top plate 40 that closes the upper opening of the frame 30 and holds the socket 20, an internal power line 51 provided at an extension 43 of the top plate 40 and supplying power to the socket 20, a terminal block 50 to which an external power line (not shown) for supplying power from the outside is connected, a mounting spring 60 for fixing the lighting fixture 100 to the ceiling-embedded hole, and a cone 70 mounted inside the frame 30 and forming a light-shielding angle of the light source 10.

[0015] [Overall Structure of Lighting Fixture (Cover)] Using FIGS. 3 and 4, the overall structure of the lighting fixture 200 will be described.

[0016] The lighting fixture 200 is, for example, a downlight that irradiates light downward (such as the floor, ground, wall, etc.). The lighting fixture 200 is, for example, disposed at the eaves of a building or the like. The lighting fixture 200 of the present embodiment is an embedded lighting fixture, and is, for example, embedded and disposed in an embedding hole provided at the eaves. The embedding hole of the present embodiment is circular in plan view. Further, the lighting fixture 200 of the present embodiment is a small-diameter lighting fixture disposed in a small-diameter embedding hole (for example, 75Φ).

[0017] The lighting fixture 200 includes a light source 10, a socket 20 on which the light source 10 is mounted, a cylindrical frame 30 that houses the light source 10 and the socket 20, a top plate 40 that closes the upper opening of the frame 30 and holds the socket 20, an internal power line 51 provided at an extension portion 43 of the top plate 40 and supplying power to the socket 20, a terminal block 50 to which an external power line for supplying power from the outside is connected, a mounting spring 60 for fixing the lighting fixture 100 to the ceiling embedding hole, and a cover 80 mounted inside the frame 30 and closing the lower opening of the frame 30.

[0018] Note that the lighting fixture 100 and the lighting fixture 200 share the above-described light source 10, socket 20, frame 30, top plate 40, terminal block 50, and mounting spring 60. A cone 70 is mounted on the lighting fixture 100, and a cover 80 is mounted on the lighting fixture 100. Thereby, the cone 70 or the cover 80 is mounted on the lighting fixtures 100 and 200, and the versatility of the lighting fixtures 100 and 200 can be improved. In other words, the lighting fixtures 100 and 200 can have the same configuration except for the cone 70 or the cover 80.

[0019] [Light Source Unit] Using FIGS. 1 to 5, the light source 10 will be described.

[0020] The light source 10 is, for example, an LED (Light Emitting Diode) light source. The light source 10 includes a housing 11, a light emitting portion 12 supported by the housing 11, a lens 13 disposed below the light emitting portion 12, two power supply pins 14 for receiving power to cause the light emitting portion 12 to emit light, and a drive circuit 15 for driving the light emitting portion 12.

[0021] The housing 11 is a member that forms the outer contour of the light source 10. The housing 11 is made of resin or metal and is formed in a substantially cylindrical shape. The housing 11 holds the light emitting portion 12 and the lens 13. Also, the drive circuit 15 is housed inside the housing 11. A convex portion 11A protruding upward is formed on the top surface of the housing 11. The convex portion 11A is formed in a substantially cylindrical shape. A capacitor 16, which is a part of the drive circuit 15, is housed in the convex portion 11A. With such a configuration, the capacitor 16, which is a high-temperature component compared to other components of the drive circuit 15, can be efficiently cooled.

[0022] The light emitting portion 12 emits light by the power supplied from the drive circuit 15. The light emitting portion 12 emits, for example, white light. The light emitting portion 12 is constituted by, for example, LEDs. The light emitting portion 12 includes a substrate and one or more LED elements mounted on the substrate. The LED element may be a surface mount type LED package or an LED chip.

[0023] The lens 13 is a light transmissive optical member that transmits the light emitted from the light emitting portion 12. Also, the lens 13 is a condenser lens that condenses the light emitted from the light emitting portion 12 and is, for example, a Fresnel lens. The lens 13 is constituted by a light transmissive material having light transmissivity and is, for example, made of a transparent resin material such as acrylic or polycarbonate, or a glass material.

[0024] The power supply pin 14 is a conductive pin that receives power from outside the light source 10 to cause the light emitting part 12 to emit light. The power supply pin 14 and the drive circuit 15 are electrically connected by an electric wire (not shown) housed in the housing 11. The power supply pin 14 is a pin having a T-shaped cross section with a disk-shaped large-diameter part at the tip. Also, the distance between the two power supply pins 14 is the same as the distance P between the terminal parts 25B as pin mounting parts, which will be described in detail later.

[0025] Also, the power supply pin 14 is a connection pin for connecting the light source 10 to the socket 20. The power supply pin 14 is electrically connected to the socket 20. Although details will be described later, the power supply pin 14 is locked to the terminal part 25B as the pin mounting part of the connection terminal 25 provided on the socket 20, and is electrically and mechanically connected to the terminal part 25B. Also, the distance between the two power supply pins 14 is the same as the distance P between the terminal parts 25B as pin mounting parts, which will be described in detail later.

[0026] The drive circuit 15 is a power supply circuit for causing the light emitting part 12 to emit light, and supplies predetermined power to the light emitting part 12. The drive circuit 15 has a capacitor 16 which is a high-temperature component compared with other components of the drive circuit 15. The drive circuit 15, for example, converts the AC power received by the power supply pin 14 (for example, commercial AC power of AC100V) into DC power, and supplies the DC power to the light emitting part 12.

[0027] [Socket] The socket 20 will be described with reference to FIGS. 2, 4, and 5 to 7.

[0028] As shown in FIGS. 2, 4, and 5 to 7, the socket 20 is a member to which the light source 10 is attached, as described above. Also, the socket 20 is a member that supplies power to the light source 10. The socket 20 is fixed to the lower surface of the top surface part 41 of the top plate 40. The socket 20 has a housing 21 and two connection terminals 25, the details of which will be described later.

[0029] As shown in FIGS. 5 to 7, the housing 21 is a member that forms the outer contour of the socket 20. The housing 21 is made of, for example, resin and is formed in a ring shape having a top surface. The housing 21 has an upper cover 21A that covers the upper side of the housing 21 and a lower cover 21B that covers the lower side of the housing 21. Two long holes 22 and a recess 23, the details of which will be described later, are formed in the lower cover 21B. The long holes 22 are formed in a substantially arc shape on the bottom surface of the housing 21. Each of the long holes 22 has a pin insertion hole 22A, a pin mounting hole 22B, and a pin guide hole 22C, the details of which will be described later.

[0030] As shown in FIG. 6, the pin insertion hole 22A is formed with an enlarged diameter at one end of the long hole 22. The pin mounting hole 22B is formed at the other end of the long hole 22 and is formed at a position where the terminal portion 25B as the pin mounting portion of the connection terminal 25 to be described later is visible. The pin guide hole 22C communicates the pin insertion hole 22A and the pin mounting hole 22B and is formed in an arc shape along the pin guide portion 25C of the connection terminal 25 to be described later.

[0031] Here, when the light source 10 is mounted on the socket 20, the light source 10 is inserted into the socket 20 and rotated with respect to the socket 20, whereby the light source 10 is mounted on the socket 20. When the light source 10 is inserted into the socket 20, the power supply pin 14 is inserted into the pin insertion hole 22A of the long hole 22. When the light source 10 is rotated with respect to the socket 20, the power supply pin 14 is guided by the pin guide hole 22C of the long hole 22, and after the light source 10 is rotated with respect to the socket 20, the power supply pin 14 reaches the pin mounting hole 22B.

[0032] The recess 23 is formed at a substantially central portion of the socket 20. The recess 23 is formed in a circular shape in plan view. When the light source 10 is mounted on the socket 20, the convex portion 11A of the housing 11 of the light source 10 is fitted into the recess 23. Thereby, the capacitor 16, which is a component of the drive circuit 15 of the light source 10, can be accommodated at a substantially central portion of the socket 20, and the space occupied by the light source 10 and the socket 20 can be reduced.

[0033] As shown in FIGS. 6 and 7, the connection terminal 25 is a terminal that supplies the power supplied from the internal power line 51 to the power supply pin 14. The connection terminal 25 is a member made of a conductive metal. The connection terminal 25 is housed in the upper cover 21A. The connection terminal 25 is housed at a position corresponding to the long hole 22 in the housing 21. The connection terminal 25 has a pin introduction portion 25A, a terminal portion 25B as a pin mounting portion, and a pin guiding portion 25C, the details of which will be described later.

[0034] The pin introduction portion 25A is disposed on the way of the pin guide hole 22C of the long hole 22, and is a portion where the power supply pin 14 is introduced while the light source 10 is being inserted into the socket 20 and rotated.

[0035] The terminal portion 25B as a pin mounting portion is disposed at a position corresponding to the pin mounting hole 22B of the long hole 22 as described above, and is a portion where the power supply pin 14 is locked after the light source 10 is rotated with respect to the socket 20. The terminal portion 25B holds the power supply pin 14 and is electrically connected to the power supply pin 14. Further, the terminal portion 25B is electrically connected to the internal power line 51, and the internal power line 51 and the power supply pin 14 are electrically connected via the terminal portion 25B. Further, when the power supply pin 14 is locked to the terminal portion 25B, the light source 10 is held by the socket 20.

[0036] Here, the terminal portions 25B as pin mounting portions are arranged such that the distance P between the terminal portions 25B is 25 to 40 mm, and preferably the distance P between the terminal portions 25B is 25 to 30 mm. Thereby, when the light source 10 is mounted on the socket 20, the fixing stability of the light source 10 with respect to the socket 20 can be improved.

[0037] Further, the terminal portions 25B as pin mounting portions are arranged such that when the test finger of the JIS standard contacts the pin mounting hole 22B of the long hole 22, the test finger does not contact the terminal portion 25B. Thereby, accidents such as electric shock when removing the light source 10 from the socket 20 or attaching (mounting) the light source 10 to the socket 20 can be prevented.

[0038] The pin guide portion 25C is disposed at a position corresponding to the pin guide hole 22C of the long hole 22 as described above, and is a portion where the power supply pin 14 is guided when the light source 10 is rotated with respect to the socket 20.

[0039] [Frame] Again, the frame 30 will be described with reference to FIGS. 1 to 4 and FIG. 8.

[0040] As described above, the frame 30 is a cylindrical member that houses the light source 10 and the socket 20. Further, a cone 70 or a cover 80 is attached to the inside of the frame 30. Thereby, the cone 70 or the cover 80 is attached to the lighting fixtures 100 and 200, and the versatility of the lighting fixtures 100 and 200 can be improved. In other words, the lighting fixtures 100 and 200 can have a common configuration other than the cone 70 or the cover 80.

[0041] The frame 30 is formed of a metal material such as aluminum or iron, and is formed by die-casting. The upper opening of the frame 30 is closed by the top surface portion 41 of the top plate 40. A spring holding portion 31, which is a flat surface for holding the mounting spring 60, is formed on the outer peripheral surface of the frame 30. Further, on the inner peripheral surface of the frame 30, a locking portion 32, an insertion portion 33, a semi-circular protrusion portion 34, a rectangular protrusion portion 35, and a fitting portion 36, which will be described in detail later, are formed.

[0042] Here, when the cone 70 or the cover 80 is attached to the inside of the frame 30, first, the cone 70 or the cover 80 is inserted into the inside of the frame 30, the cone 70 or the cover 80 is rotated inside the frame 30, and the cone 70 or the cover 80 is attached to the inside of the frame 30.

[0043] The locking portion 32 is a portion where the step portion 75 of the cone 70 or the step portion 85 of the cover 80, which will be described later, locks, and is a portion that guides the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80, which will be described later. The locking portion 32 is formed along the circumferential direction on the inner peripheral surface of the frame 30. The locking portion 32 is formed to protrude inward. The locking portion 32 is formed, for example, by approximately 100° when viewed from the axial direction (in plan view). Two locking portions 32 are formed at positions facing each other when viewed from the axial direction. Here, an insertion portion 33 is defined between the two locking portions 32.

[0044] When the cone 70 or the cover 80 is inserted inside the frame 30, the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80, which will be described later, passes through the insertion portion 33. Also, when the cone 70 or the cover 80 is inserted inside the frame 30, the step portion 75 of the cone 70 or the step portion 85 of the cover 80, which will be described later, locks to the lower surface of the locking portion 32, and the cone 70 or the cover 80 is positioned with respect to the frame 30 inside the frame 30. When the cone 70 or the cover 80 is inserted inside the frame 30 and rotated, the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80 is guided by the upper surface of the locking portion 32.

[0045] The semi-circular protrusion 34 is a portion that the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80, which will be described later, climbs over. The semi-circular protrusion 34 is formed to protrude inward from the inner peripheral surface of the frame 30. The semi-circular protrusion 34 is formed in a semi-circular shape when viewed from the axial direction (in plan view). The semi-circular protrusion 34 is formed continuously with the locking portion 32 above the locking portion 32.

[0046] When the cone 70 or the cover 80 is inserted inside the frame 30 and rotated, the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80 is guided by the upper surface of the locking portion 32 and climbs over the semi-circular protrusion 34.

[0047] The rectangular protrusion 35 is the portion where the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80, which will be described later, is locked. Here, the gap between the rectangular protrusion 35 and the semi-circular protrusion 34 is defined as the fitting portion 36. The rectangular protrusion 35 is formed to protrude inward from the inner peripheral surface of the frame 30. The rectangular protrusion 35 is formed in a rectangular shape when viewed from the axial direction (in plan view). The rectangular protrusion 35 is formed continuously with the locking portion 32 above the locking portion 32.

[0048] When the cone 70 or the cover 80 is inserted into the inside of the frame 30 and rotated, the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80 is guided by the upper surface of the locking portion 32, overrides the semi-circular protrusion 34, and is locked by the rectangular protrusion 35. In other words, the semi-circular protrusion 77 of the cone 70 or the semi-circular protrusion 87 of the cover 80 is guided by the upper surface of the locking portion 32, overrides the semi-circular protrusion 34, and is fitted into the fitting portion 36.

[0049] [Top plate] Once again, the top plate 40 will be described with reference to FIGS. 1 to 4.

[0050] The top plate 40 is a member that covers the upper opening of the frame 30 as described above. The top plate 40 is made of metal and is formed by pressing or bending a metal plate. The top plate 40 has a top surface portion 41 and an extension portion 43, the details of which will be described later.

[0051] The top surface portion 41 is the portion that covers the upper opening of the frame 30. A bulging portion 44 that bulges upward is formed on the top surface portion 41. An internal power line 51 is accommodated inside the bulging portion 44. Thereby, an insulation distance between the internal power line 51 and the metal top plate 40 can be ensured. Further, the bulging portion 44 is formed in an elongated hole shape along the extension direction of the extension portion 43, which will be described later, in plan view. One end side (the side where the extension portion 43 is formed) of the bulging portion 44 is formed up to the outside of the frame 30. Thereby, the internal power line 51 can be extended to the outside of the frame 30.

[0052] The extending portion 43 extends from the top surface portion 41 to one side and holds the terminal block 50 on the lower surface.

[0053] [Terminal block] The terminal block 50 will be described with reference to FIGS. 1 and 3.

[0054] As described above, the terminal block 50 is a member to which an internal power line 51 that supplies power to the socket 20 and an external power line for supplying power from the outside are electrically connected. Further, as described above, the terminal block 50 is fixed to the lower surface of the extending portion 43 of the top plate 40. With such a configuration, for example, compared with a lighting fixture in which the terminal block is disposed above the socket, the height of the lighting fixture 100 can be designed to be smaller.

[0055] [Mounting spring] The mounting spring 60 will be described with reference to FIGS. 1 and 3.

[0056] As described above, the mounting spring 60 is a member that fixes the lighting fixture 100 to the ceiling recessed hole. In the present embodiment, for example, two mounting springs 60 are held by the spring holding portion 31 of the frame 30. The mounting spring 60 is an elastic member, and is, for example, a leaf spring formed of a long metal plate. When fixing the lighting fixture 100 to the ceiling recessed hole, the flange portion of the frame 30 is locked to the ceiling surface, and the mounting spring 60 is elastically deformed between the spring holding portion 31 of the frame 30 and the inner surface of the ceiling recessed hole, and the resilience of the mounting spring 60 is utilized to fix the lighting fixture 100 to the ceiling recessed hole.

[0057] [Cone] Again, the cone 70 will be described with reference to FIGS. 1, 2, and 9.

[0058] As described above, the cone 70 is a member that is mounted on the inner peripheral surface of the frame 30 and forms a shielding angle of the light source 10. According to the cone 70, since the light source 10 is out of the user's viewing angle, it becomes difficult for the user to directly see the light source 10. As a result, it becomes easier for the user to see the surroundings of the user, and a comfortable light environment without glare can be provided.

[0059] The cone 70 is formed of, for example, a resin material. The cone 70 has a diameter-expanded portion 71, a cylindrical portion 72, a stepped portion 75, a tongue piece portion 76, and a semi-circular protrusion portion 77, the details of which will be described later.

[0060] The diameter-expanded portion 71 is a portion that forms the light-shielding angle of the light source 10. The diameter-expanded portion 71 is formed to expand downward and is arranged to be located below the light source 10. The inner surface of the diameter-expanded portion 71 is subjected to, for example, mirror treatment by aluminum evaporation and is formed as a reflecting surface. Thereby, light is reflected well on the reflecting surface. The reflecting surface is not limited to mirror treatment by aluminum evaporation. For example, a reflecting film such as a metal thin film or a dielectric multilayer film may be formed by a method such as thermal evaporation, electron beam evaporation, sputtering, or plating.

[0061] Note that claws may be formed at the lower end or the middle part of the diameter-expanded portion 71. By hooking a finger on the claws and gripping them, the cone 70 can be easily attached and detached. Further, when attaching and detaching the cone 70, by hooking a finger on the claws and gripping them, the reflecting surface is not touched by the finger and the reflecting surface is not soiled by fingerprints or the like.

[0062] The cylindrical portion 72 is a portion for mounting the cone 70 inside the frame 30. The cylindrical portion 72 is formed in a cylindrical shape and extends upward at a middle part of the outer peripheral surface of the diameter-expanded portion 71.

[0063] The stepped portion 75 is a portion that engages with the locking portion 32 of the frame 30. The stepped portion 75 is a portion where a step is formed by reducing the outer diameter of the upper end portion of the cylindrical portion 72. According to the stepped portion 75, the cone 70 is positioned with respect to the frame 30 by engaging with the locking portion 32 of the frame 30.

[0064] The tongue piece portion 76 is a part that functions as an elastic member when the semi-circular protrusion portion 77 described later gets over the semi-circular protrusion portion 34 of the frame 30. The tongue piece portion 76 is formed continuously with the cylindrical portion 72 only at the lower end at the upper end of the cylindrical portion 72, and is formed with a predetermined gap from the cylindrical portion 72 in the circumferential direction.

[0065] The semi-circular protrusion portion 77 is a part that is guided on the upper surface of the locking portion 32 of the frame 30, gets over the semi-circular protrusion portion 34 of the frame 30, is locked to the rectangular protrusion portion 35 of the frame 30, and is fitted to the fitting portion 36 of the frame 30. The semi-circular protrusion portion 77 is formed to protrude outward in the radial direction at the upper end of the tongue piece portion 76. The semi-circular protrusion portion 77 is formed in a semi-circular shape when viewed from the axial direction (in plan view).

[0066] [Cover] Once again, the cover 80 will be described with reference to FIGS. 3, 4 and 10.

[0067] As described above, the cover 80 is a member that is attached to the inner peripheral surface of the frame 30 and closes the lower opening of the frame 30. According to the cover 80, the inside of the frame 30 can be sealed from the outside, and the waterproof performance of the lighting fixture 200 disposed outdoors can be improved.

[0068] The cover 80 is formed in a bottomed cylindrical shape and is formed of, for example, a resin material having permeability. The cover 80 has a main body 81, a bottom surface portion 82, a protrusion portion 83, a fitting portion 84, a step portion 85, a tongue piece portion 86, and a semi-circular protrusion portion 87, which will be described in detail later.

[0069] The main body 81 is a portion formed in a cylindrical shape in the bottomed cylindrical cover 80. The bottom surface portion 82 is a portion that forms the bottom surface in the bottomed cylindrical cover 80. The protrusion portion 83 is formed to protrude downward at the edge of the lower surface of the bottom surface portion 82. Thereby, for example, the cover 80 can be gripped by pinching the protrusion portion 83 with a finger or by attaching a jig or the like to the protrusion portion 83. Thereby, the cover 80 can be easily attached to the frame 30, and the cover 80 can be easily removed from the frame 30.

[0070] The fitting portion 84 is the portion into which the packing 89 is fitted. The fitting portion 84 is formed along the circumferential direction at the lower end of the main body 81. The fitting portion 84 is formed in a concave shape in a cross-sectional view perpendicular to the circumferential direction.

[0071] The stepped portion 85 is the portion that engages with the locking portion 32 of the frame 30. The stepped portion 85 is the portion where a step is formed by reducing the outer diameter of the upper end of the main body 81. According to the stepped portion 85, the cover 80 is positioned with respect to the frame 30 by engaging with the locking portion 32 of the frame 30.

[0072] The tongue piece portion 86 is the portion that functions as an elastic member when the semicircular protrusion portion 87 described later gets over the semicircular protrusion portion 34 of the frame 30. The tongue piece portion 86 is formed continuously with the main body 81 only at the lower end at the upper end of the main body 81, and is formed with a predetermined gap from the main body 81 in the circumferential direction.

[0073] The semicircular protrusion portion 87 is the portion that is guided on the upper surface of the locking portion 32 of the frame 30, gets over the semicircular protrusion portion 34 of the frame 30, is locked to the rectangular protrusion portion 35 of the frame 30, and is fitted into the fitting portion 36 of the frame 30. The semicircular protrusion portion 87 is formed to protrude outward in the radial direction at the upper end of the tongue piece portion 86. The semicircular protrusion portion 87 is formed in a semicircular shape when viewed from the axial direction (in plan view).

[0074] The packing 89 is formed in a ring shape. The packing 89 is fitted into the fitting portion 84 of the cover 80. According to the packing 89, the waterproof performance of the cover 80 can be further improved.

[0075] [Summary] The present disclosure will be further described by the following embodiments. Configuration 1: A lighting fixture embedded and disposed in an embedding hole, a light source, a socket to which the light source is attached, a cylindrical frame that houses the light source and the socket, comprising Inside the frame, a cone that forms a light-shielding angle of the light source or a cover that covers the opening of the frame is mounted. Lighting fixture. Configuration 2: The lighting fixture according to Configuration 1, The cone or the cover is mounted on the frame by inserting and rotating the cone or the cover into the frame. Lighting fixture. Configuration 3: The lighting fixture according to Configuration 1 or Configuration 2, A packing is arranged between the frame and the cover. Lighting fixture. Configuration 4: The lighting fixture according to any one of Configurations 1 to 3, Protrusions protruding downward are formed at the edges of the bottom surface of the cover. Lighting fixture. Configuration 5: The lighting fixture according to any one of Configurations 1 to 4, The light source has two power supply pins, The socket has two pin mounting parts on which the two power supply pins are respectively mounted, The distance between the pin mounting parts is 25 to 40 mm. Lighting fixture. Configuration 6: The lighting fixture according to any one of Configurations 1 to 5, The distance between the pin mounting parts is 25 to 30 mm. Lighting fixture.

[0076] As described above, the present disclosure has been described based on the embodiments. However, the present disclosure is not limited to the above embodiments. In addition, forms obtained by applying various modifications that occur to those skilled in the art to each embodiment, and forms realized by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present disclosure are also included in the present disclosure.

Explanation of Reference Numerals

[0077] 10 Light source, 11 Housing, 11A Protrusion, 12 Light emitting part, 13 Lens, 14 Power supply pin, 15 Drive circuit, 16 Capacitor, 20 Socket, 21 Housing, 21A Upper cover, 21B Lower cover, 22 Long hole, 22A Pin insertion hole, 22B Pin mounting hole, 22C Pin guiding hole, 23 Recess, 25 Connection terminal, 25A Pin introduction part, 25B Terminal part (pin mounting part), 25C Pin guiding part, 30 Frame, 31 Spring holding part, 32 Locking part, 33 Insertion part, 34 Semi-circular protrusion, 35 Rectangular protrusion, 36 Fitting part, 40 Top plate, 41 Top surface part, 43 Extended part, 44 Bulged part, 50 Terminal block, 51 Internal power line, 60 Mounting spring, 70 Cone, 71 Diameter-expanded part, 72 Cylindrical part, 75 Step part, 76 Tongue piece part, 77 Semi-circular protrusion, 80 Cover, 81 Body, 82 Bottom surface part, 83 Protrusion, 84 Fitting part, 85 Step part, 86 Tongue piece part, 87 Semi-circular protrusion, 89 Packing, 100 Lighting fixture, 200 Lighting fixture

Claims

1. A lighting fixture embedded and disposed in an embedded hole, comprising: a light source; a socket to which the light source is attached; a cylindrical frame that houses the light source and the socket; and a cone that forms a light shielding angle of the light source or a cover that covers an opening of the frame is attached inside the frame. A lighting fixture.

2. The lighting fixture according to Claim 1, wherein the cone or the cover is attached to the frame by inserting and rotating the cone or the cover into the frame. A lighting fixture.

3. The lighting fixture according to Claim 1, wherein a packing is disposed between the frame and the cover. A lighting fixture.

4. The lighting fixture according to Claim 1, wherein a protruding portion protruding downward is formed at an edge of a bottom surface of the cover. A lighting fixture.

5. The lighting fixture according to any one of Claims 1 to 4, wherein the light source has two power supply pins, the socket has two pin mounting portions to which the two power supply pins are respectively mounted, and a distance between the pin mounting portions is 25 to 40 mm. A lighting fixture.

6. The lighting fixture according to Claim 5, wherein the distance between the pin mounting portions is 25 to 30 mm. A lighting fixture.

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