JP2017220361A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of suppressing interference between a plate spring and a building material at the time of installation and increasing the degree of freedom of the arrangement position of a fixture main body with respect to the building material.SOLUTION: The present invention relates to a lighting fixture 1, which is attached to an opening provided in a building material 900, includes: a light source 30; a fixture main body 10 which has a recessed part 19 in which the light source 30 is arranged; a mounting base 20 which is arranged in an opening 19a of the recessed part 19 and in which a first hole 22, which penetrates in the direction crossing an optical axis J of the light source 30, is formed; a frame body 6 which is arranged at a position corresponding to the first hole 22 and in which a second hole 62, which penetrates in a direction crossing the optical axis J, is formed, and which has a contact surface 85 to be brought into contact with the building material 900; a plurality of plate springs 90 in which one end 91 is attached to the frame body 6 and which fixes the frame body 6 to the building material 900; and a shaft member 660 which penetrates the first hole 22 and the second hole 62. At least one of the first hole 22 and the second hole 62 is a long hole extending in a direction crossing a flat surface parallel to the contact surface 85.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a lighting fixture attached to a construction material using a leaf spring.

  Conventionally, as a lighting fixture, for example, a ceiling-embedded lighting fixture that is embedded in a construction material such as a ceiling plate and emits light downward in the vertical direction is known.

  This type of lighting fixture includes a light source, a fixture main body that houses the light source, an annular frame that is disposed on the periphery of the opening in the construction material, and a plurality of leaf springs that are attached to the frame at one end. (See, for example, Patent Document 1).

  When such a lighting fixture is installed in the construction material, the end portion of the plate spring and the side where the leaf spring is not fixed (hereinafter also referred to as “free end”) is formed in the opening formed in the construction material. ) Is inserted. When the free end of the leaf spring is inserted into the opening, in order to prevent the free end from interfering with the construction material, the free end is brought closer to the side surface of the instrument body by elastically deforming the leaf spring. Furthermore, in the lighting fixture described in Patent Document 1, a constricted portion where a free end of a leaf spring can be disposed is provided between the fixture body and the frame. In the constricted portion, the dimension in the direction perpendicular to the optical axis of the light source is smaller than that of the instrument body. Thereby, in the lighting fixture disclosed by patent document 1, it is going to suppress further interference with a free end and a construction material.

JP-A-2006-91955

  In the lighting fixture disclosed in Patent Document 1, interference between the free end of the leaf spring and the construction material can be suppressed, but by inserting a constricted portion between the fixture main body and the frame, the fixture main body and the frame. The distance between is increased. For this reason, the light source accommodated in the instrument main body is arranged at a position recessed from the construction material. Therefore, the light extraction efficiency, which is the ratio of the light emitted from the light source to the outside from the frame body, is reduced.

  Therefore, the present invention is a lighting fixture that is attached to an opening provided in a construction material using a leaf spring, can suppress interference between the leaf spring and the construction material during installation, and the construction material of the equipment body It aims at providing the lighting fixture which can raise the freedom degree of the arrangement position with respect to.

  In order to achieve the above object, one aspect of a lighting fixture according to the present invention is a lighting fixture to be attached to an opening provided in a construction material, the fixture main body having a light source and a recess in which the light source is disposed. A mounting base disposed in the opening of the recess, the mounting base having a first hole penetrating in a direction intersecting the optical axis of the light source, and a position corresponding to the first hole A frame that has a second surface that penetrates in a direction that intersects the optical axis, has a contact surface that contacts the construction material, and one end attached to the frame body, and the frame body is attached to the construction material. A plurality of plate springs and a shaft member penetrating the first hole and the second hole, and at least one of the first hole and the second hole is a plane parallel to the contact surface It is a long hole extending in the direction intersecting with.

  According to one aspect of the present invention, a lighting fixture that is attached to an opening provided in a construction material using a leaf spring, can suppress interference between the leaf spring and the construction material during installation, and the device body The lighting fixture which can raise the freedom degree of the arrangement position with respect to the construction material of can be provided.

FIG. 1 is a perspective view illustrating an appearance of a lighting apparatus according to an embodiment. FIG. 2 is a cross-sectional view of the lighting fixture according to the embodiment. FIG. 3 is an exploded perspective view of the lighting fixture according to the embodiment. FIG. 4 is an exploded perspective view showing a connection configuration between the fixture main body and the mounting base of the lighting fixture according to the embodiment. FIG. 5 is a side view showing the configuration of the mounting base of the lighting fixture according to the embodiment. FIG. 6 is a side view showing the configuration of the connection member according to the embodiment. FIG. 7 is a perspective view showing a detailed configuration of the leaf spring according to the embodiment. FIG. 8 is a cross-sectional view illustrating a state in which a part of the lighting fixture according to the embodiment is made a hole in the construction material. FIG. 9 is a cross-sectional view showing a state where the construction material of the lighting fixture according to the embodiment has been inserted into the opening. FIG. 10 is a cross-sectional view showing a state in which the fixture main body of the lighting fixture according to the embodiment is arranged at a position close to the frame. FIG. 11 is a cross-sectional view showing a state in which the fixture main body of the lighting fixture according to the embodiment is arranged at a position far from the frame and the light emission direction is inclined. FIG. 12 is a cross-sectional view illustrating a state in which the fixture body of the lighting fixture according to the embodiment is disposed at a position close to the frame body and the light emission direction is inclined.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a specific example of the present invention. Accordingly, numerical values, shapes, materials, components, arrangement positions and connection forms of components shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment)
[1. overall structure]
First, the whole structure of the lighting fixture 1 which concerns on embodiment is demonstrated using drawing.

  FIG. 1 is a perspective view showing an appearance of a lighting fixture 1 according to the present embodiment. FIG. 2 is a cross-sectional view of the lighting fixture 1 according to the present embodiment. FIG. 2 shows a cross section through the optical axis J of the luminaire 1. FIG. 2 also shows a construction material 900 to which the lighting fixture 1 is attached. FIG. 3 is an exploded perspective view of the lighting fixture 1 according to the present embodiment. FIG. 4 is an exploded perspective view showing a connection configuration between the fixture body 10 and the mounting base 20 of the lighting fixture 1 according to the present embodiment.

  In each figure, a direction parallel to the optical axis J is a Y-axis direction, and two directions perpendicular to the optical axis J and perpendicular to each other are a Z-axis direction and an X-axis direction. In the present embodiment, the Y-axis direction is the vertical direction. FIG. 2 shows a cross section parallel to the XY plane and passing through the optical axis J.

  The lighting fixture 1 shown in FIGS. 1 and 2 is embedded in a construction material 900 such as a ceiling board of a building, for example, so that it is embedded in a lighting fixture such as a downlight that illuminates light downward (floor, wall, etc.). It is. In this Embodiment, the lighting fixture 1 is what is called a universal downlight which can incline an optical axis direction with respect to the construction material 900. FIG.

  As shown in FIGS. 1 and 2, the lighting fixture 1 mainly includes a fixture main body 10, a mounting base 20, a frame body 6, a plurality of leaf springs 90, and a pair of shaft members 660. As shown in FIG. 2, the lighting fixture 1 further includes a light source 30 accommodated in the fixture body 10, a reflecting member 40, and an optical member 50. Hereinafter, each component of the lighting fixture 1 is demonstrated.

[1-1. Instrument body]
As shown in FIG. 2, the instrument body 10 is a bottomed cylindrical member having a recess 19 in which the light source 30 is disposed. The instrument body 10 accommodates the light source 30 inside the recess 19. In the present embodiment, the instrument main body 10 includes a light source mounting base 12 and a cylindrical portion 13.

  The light source mounting base 12 is a mounting base on which the light source 30 is mounted, and forms the bottom of the bottomed cylindrical instrument body 10. The light source mount 12 also functions as a heat sink that dissipates heat generated from the light source 30. Therefore, the light source mount 12 may be made of a material having high thermal conductivity such as a metal material. The light source mount 12 is made of, for example, aluminum die casting made of aluminum.

  The light source 30 is disposed on the lower surface of the light source mount 12 in FIG. The light source mount 12 has a plurality of fins 11 for heat dissipation on the upper side in FIG. Thereby, since the heat generated from the light source 30 is dissipated by the plurality of fins 11, the temperature rise of the light source 30 can be suppressed.

  The cylindrical portion 13 shown in FIGS. 1 and 2 is a cylindrical portion formed on the periphery of the light source mounting base 12. The material which forms the cylindrical part 13 is not specifically limited. The cylindrical portion 13 is formed of aluminum or the like integrally with the light source mounting base 12, for example.

  As shown in FIGS. 3 and 4, the instrument body 10 includes mounting portions 15 and 17 at the end of the cylindrical portion 13 on the mounting base 20 side (see FIG. 3 for the mounting portion 15 and FIG. 3 for the mounting portion 17). (See FIG. 4). The attachment portions 15 and 17 are portions for attaching the attachment base 20 to the instrument body 10. In the present embodiment, the attachment portions 15 and 17 are plate-like portions extending from the tubular portion 13 in a direction substantially parallel to the optical axis J. A through hole 16 is formed in the attachment portion 15. A cutout portion 18 is formed in the attachment portion 17.

[1-2. Mounting base]
The mounting base 20 will be described with reference to FIGS.

  FIG. 5 is a side view showing the configuration of the mounting base 20 of the lighting fixture 1 according to the present embodiment.

  As shown in FIG. 2, the mounting base 20 is a member that connects the instrument main body 10 and the frame body 6, and is disposed in the opening 19 a of the recess 19 of the instrument main body 10. In the present embodiment, the mounting base 20 has a cylindrical shape as shown in FIGS. 3 and 4, and as shown in FIGS. 3 to 5, the constricted portion 21 and the main body side end portion 25, Have The mounting base 20 is formed with a pair of first holes 22 penetrating in a direction intersecting the optical axis J of the light source 30. Further, a mounting pin 26 and a screw hole 28 (see FIG. 4) are formed in the vicinity of the body side end 25 of the mounting base 20.

  The constricted portion 21 is a portion whose dimension in the direction perpendicular to the optical axis J is smaller than the end portion of the instrument body 10 on the side close to the mounting base 20. In the present embodiment, the constricted portion 21 has a cylindrical shape, and a pair of first holes 22 and a notch portion 24 are formed at the end of the constricted portion 21 on the frame body 6 side. The cutout portion 24 is a portion formed at an end portion of the mounting base 20 on the side close to the frame body 6, and is a portion having a shape such that the end portion of the cylindrical member is cut out obliquely. The notch portion 24 is formed between the pair of first holes 22 in the constricted portion 21. Thereby, when rotating the mounting base 20 and the instrument main body 10 centering on a pair of shaft member 660, the interference between the mounting base 20 and the frame 6 can be reduced. In addition, the formation method of the notch part 24 is not specifically limited. The notch 24 may be formed by, for example, notching a cylindrical member, or may be formed by die casting or the like.

  The pair of first holes 22 are through holes penetrating in a direction intersecting the optical axis J of the light source. In the present embodiment, the pair of first holes 22 are elongated holes that extend in a direction intersecting with a plane parallel to the contact surface 85 that contacts the construction material 900 in the frame 6, and are opposed positions in the constricted portion 21. Is formed. In the present embodiment, the pair of first holes 22 are elongated holes extending in a direction parallel to the optical axis J (a direction perpendicular to the contact surface 85), but the extending direction of the pair of first holes 22 is The direction does not have to be parallel to the optical axis J as long as it intersects with a plane parallel to the contact surface 85. For example, the pair of first holes 22 may extend spirally along the surface of the constricted portion 21.

  The main body side end portion 25 is an end portion of the mounting base 20 on the instrument main body 10 side. In the present embodiment, the main body side end portion 25 is an annular portion having a diameter equivalent to the opening 19 a of the instrument main body 10 and is attached to the instrument main body 10. The main body side end portion 25 has a larger diameter than the constricted portion 21.

  The mounting pin 26 is a pin for fixing the mounting base 20 to the instrument body 10. The attachment pin 26 is inserted into the through hole 16 formed in the attachment portion 15 of the instrument body 10.

  The screw hole 28 shown in FIG. 4 is a hole for fixing the instrument body 10 to the mounting base 20. A screw 29 is screwed into the screw hole 28.

  When fixing the instrument body 10 to the mounting base 20, first, the mounting pins 26 of the mounting base 20 are inserted into the through holes 16 of the instrument body 10. Subsequently, the notch portion 18 of the attachment portion 17 of the instrument body 10 is disposed at the position of the screw hole 28 of the attachment base 20 while the attachment pin 26 is inserted into the through hole 16. Then, the screw 29 is screwed into the screw hole 28. As a result, the mounting portion 17 is held between the screw 29 and the mounting base 20. On the other hand, the attachment pin 26 is maintained in a state of being inserted into the through hole 16. That is, the instrument body 10 is fixed to the mounting base 20.

  The material for forming the mounting base 20 is not particularly limited. The mounting base 20 is made of a metal material such as aluminum, for example.

[1-3. Frame]
As shown in FIG. 2, the frame 6 is a member attached to the building material 900. A plurality of leaf springs 90 are fixed to the frame body 6. The luminaire 1 can be fixed to the construction material 900 by sandwiching the construction material 900 between the frame body 6 and the leaf spring 90. In the present embodiment, the frame body 6 includes a connection member 60, a locking member 70, and a fixing member 80. As shown in FIG. 3, a pair of second holes 62 are formed in the connection member 60 of the frame 6. In the present embodiment, the pair of second holes 62 is disposed at a position corresponding to each of the pair of first holes 22 formed in the mounting base 20 and penetrates in the direction intersecting the optical axis J. It is a hole. Further, the frame body 6 has a contact surface 85 that contacts the building material 900.

  In the present embodiment, the pair of second holes 62 are circular through holes, but the pair of second holes 62 may also be elongated holes similar to the pair of first holes 22. It is sufficient that at least one of the pair of first holes 22 and the pair of second holes 62 is an elongated hole extending in a direction intersecting with a plane parallel to the contact surface 85. The mounting base 20 and the frame body 6 are fastened by a shaft member 660 that passes through the first hole 22 and the second hole 62. Thereby, the distance between the frame 6, the mounting base 20, and the instrument main body 10 can be adjusted. That is, the freedom degree of the arrangement position with respect to the frame 6 and the construction material 900 of the instrument main body 10 can be raised.

  The material forming the frame 6 is not particularly limited. The frame 6 is made of a metal material such as aluminum, for example.

[1-3-1. Locking member]
The locking member 70 is a member that locks the connection member 60 and the plurality of leaf springs 90. In the present embodiment, the locking member 70 has an annular shape as shown in FIG. The locking member 70 has an annular portion 71 and two tongue-like portions 72.

  The annular portion 71 is an annular plate-like portion of the locking member 70 and locks the connection member 60. Four concave portions are formed in the peripheral portion of the annular portion 71, and the four screws 88 are screwed into the screw holes 83 formed in the fixing member 80 through each of the four concave portions to lock the annular portion 71. The member 70 is fixed to the fixing member 80. By connecting the connection member 60 between the annular portion 71 and the fixing member 80, the connection member 60 is locked to the locking member 70 and the fixing member 80. In the present embodiment, by adjusting the tightening strength of the screw 88, the connecting member 60 uses the axis extending in the direction intersecting the direction penetrating the first hole 22 and the second hole 62 as a rotation axis, and the frame body 6. It is locked so that it can rotate freely. Therefore, the mounting base 20 (and the instrument main body 10) attached to the connection member 60 is also rotatable with respect to the frame 6 with the axis as a rotation axis. In the present embodiment, the connection member 60 is rotatable with respect to the frame body 6 with the optical axis J as the rotation axis. In the lighting fixture 1 according to the present embodiment, the mounting base 20 has a frame extending in the direction penetrating the first hole 22 and the second hole 62 as a rotation axis (that is, the shaft member 660 as a rotation axis), and a frame. Because it is rotatable with respect to the body 6, the optical axis J can vary. In such a lighting fixture 1, the connection member 60 and the mounting base 20 should just be rotatable by using any one of the variable optical axes J as a rotation axis. Moreover, the structure of the connection member 60 and the mounting base 20 is not limited to this. The connection member 60 and the mounting base 20 only need to be rotatable about an axis parallel to the optical axis J as a rotation axis.

  The two tongue-like portions 72 are portions for locking the leaf spring 90. Each tongue 72 has a spring locking portion 73 that locks the end of the leaf spring 90. In the present embodiment, the spring locking portion 73 is a slit, and the plate spring 90 is locked to the spring locking portion 73 by inserting one end of the plate spring 90 into the spring locking portion 73.

[1-3-2. Fixed member]
The fixing member 80 is a member for fixing the lighting fixture 1 to the construction material 900. It is a member that locks the connecting member 60 and the plurality of leaf springs 90. As described above, the locking member 70 is fixed to the fixing member 80, and the connection member 60 is sandwiched between the fixing member 80 and the locking member 70.

  As shown in FIG. 3, the fixing member 80 includes a shade portion 81 and a flange portion 82.

  The shade part 81 is a part that reflects a part of the light emitted from the light source 30. The shade part 81 has a cylindrical shape, and reflects a part of the emitted light from the light source 30 on the inner surface. A screw hole 83 for screwing four screws 88 is formed in the end surface of the shade portion 81 on the side of the instrument body 10.

  The collar part 82 is a part arrange | positioned at the construction material 900, as FIG. 2 shows. The luminaire 1 is fixed to the construction material 900 by sandwiching the construction material 900 between the flange 82 and the leaf spring 90. The collar portion 82 is an annular plate-shaped portion that is disposed at an end portion of the shade portion 81 on the side far from the instrument body 10. The collar portion 82 has a contact surface 85 that contacts the construction material 900.

[1-3-3. Connection member]
The connecting member 60 will be described with reference to FIGS. 6 and 6 together with FIGS.

  FIG. 6 is a side view showing the configuration of the connection member 60 according to the present embodiment.

  The connection member 60 is a member connected to the mounting base 20. The connection member 60 has a cylindrical part 61 and a flange part 63.

  The cylindrical part 61 is a cylindrical part in which a pair of second holes 62 are formed. In the present embodiment, the cylindrical portion 61 has a cylindrical shape surrounding the optical axis J, as shown in FIGS. The tubular portion 61 is formed with a notch 64. As shown in FIGS. 3 and 4, the notch 64 is a part having a shape that is obtained by obliquely notching the end of a cylindrical member. The notch portion 64 is formed between the pair of second holes 62 in the cylindrical portion 61. Thereby, when rotating the mounting base 20 by making a pair of shaft member 660 into a rotating shaft, the interference between the mounting base 20 and the connection member 60 can be reduced. In addition, the formation method of the notch part 64 is not specifically limited. The notch 64 may be formed by, for example, notching a cylindrical member, or may be formed by die casting or the like.

  The flange 63 is a portion that is sandwiched between the fixing member 80 and the locking member 70. In the present embodiment, the collar portion 63 is an annular plate-like portion disposed at the end of the cylindrical portion 61 far from the instrument body 10.

[1-4. Leaf spring]
The leaf spring 90 will be described with reference to FIG.

  FIG. 7 is a perspective view showing a detailed configuration of the leaf spring 90 according to the present embodiment.

  The leaf spring 90 is an elastic member for attaching the lighting fixture 1 to an opening formed in the construction material 900. The leaf spring 90 is formed by bending a long plate-like elastic member. One end 91 of each leaf spring 90 is attached to the frame body 6, and the frame body 6 is fixed to the construction material 900.

  The leaf spring 90 has one end 91 and the other end 92 as shown in FIG.

  The one end 91 is a part attached to the locking member 70 of the frame body 6. As shown in FIG. 1, the leaf spring 90 is attached to the frame body 6 by engaging one end 91 with a spring locking portion 73 of the locking member 70. A locking claw 94 is formed at one end 91 as shown in FIG. The locking claw 94 is a part for locking the one end 91 to the spring locking portion 73 of the locking member 70.

  The other end 92 is a part disposed on the building material 900. In the present embodiment, a bent portion 93 is formed at the other end 92. Thereby, it can suppress that the leaf | plate spring 90 remove | deviates from the construction material 900, and the lighting fixture 1 falls. Moreover, the lighting fixture 1 can be temporarily suspended from the construction material 900 by hooking the bent part 93 on the upper surface (the upper surface in FIG. 2) of the construction material 900.

  The material for forming the leaf spring 90 is not particularly limited as long as it is an elastic material. The leaf spring 90 is formed of a metal material such as a steel material, for example.

[1-5. Shaft member]
The shaft member 660 is a rod-shaped member that passes through the first hole 22 and the second hole 62. In the present embodiment, shaft member 660 is a bolt. The shaft member 660 is fixed by a nut 664. In this embodiment, washers 661, 662, and 663 are used in combination with the nut 664. As the washer 663, for example, a washer having a function of suppressing loosening such as a spring washer and a toothed washer may be used.

  Specifically, the shaft member 660 is inserted in the order of the first hole 22 of the mounting base 20 and the second hole 62 of the frame 6 while being inserted into the washer 661. Subsequently, washers 662 and 663 are inserted into the portion of the shaft member 660 that has passed through the second hole 62. Finally, the shaft member 660 is screwed into the nut 664. Thereby, the mounting base 20 and the frame 6 are attached. In the present embodiment, the pair of shaft members 660 are arranged on substantially the same straight line. As a result, the mounting base 20 rotates with respect to the frame 6 with the axis extending in the direction penetrating the first hole 22 and the second hole 62 as the rotation axis (that is, with the pair of shaft members 660 as the rotation axes). Can be attached freely. Further, the tightening strength of the shaft member 660 and the nut 664 can be adjusted so that the rotation angle of the mounting base 20 with respect to the frame body 6 can be freely adjusted and the rotation angle does not fluctuate due to its own weight. Can be adjusted. Thereby, once the tightening strength of the shaft member 660 and the nut 664 is adjusted, it is not necessary to adjust the tightening strength every time the rotation angle is adjusted.

  The material for forming the shaft member 660 and the nut 664 is not particularly limited. The shaft member 660 and the nut 664 are made of a metal material such as stainless steel, for example.

[1-6. light source]
The light source 30 shown in FIG. 2 is a light emitting module, and is a light source that emits predetermined light radially. In the present embodiment, the light source 30 is a light emitting module having an LED (Light Emitting Diode). The light source 30 is configured to emit white light, for example. The light source 30 is composed of a COB (Chip On Board) type LED, a base, a plurality of blue LEDs that are bare chips (LED chips) mounted on the base, and the blue LEDs are sealed to form a yellow fluorescent light And a sealing member including a body.

  The base used for the light source 30 is a mounting substrate for mounting a plurality of LEDs, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like. The base is a plate material having a flat surface that is rectangular in plan view, for example. The base is fixed with the bottom surface (the surface on the positive side in the Y-axis direction) facing the light source mounting base 12 of the instrument body 10. The base is formed with a pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power for causing the LED to emit light from the outside (not shown).

  The light source 30 configured as described above is disposed in the recess 19 of the instrument body 10. In the present embodiment, the light source 30 is fixed to the lower side of the light source mounting base 12 of the instrument body 10 in FIG.

[1-7. Reflective member]
The reflecting member 40 shown in FIG. 2 is a member that controls the light distribution from the light source 30. In the present embodiment, the reflecting member 40 reflects the light from the light source 30 toward the optical member 50.

  As shown in FIG. 2, the reflecting member 40 has an inner diameter that gradually increases from an end on the light incident side (Y axis direction positive side) to an end on the light emitting side. It has a cylindrical shape configured to be large. The light from the light source 30 is reflected on the inner surface of the reflecting member 40.

  The reflecting member 40 can be formed using a hard white resin material such as polybutylene terephthalate (PBT). The reflecting member 40 may be provided with a metal film such as aluminum on the inner surface.

[1-8. Optical member]
The optical member 50 shown in FIG. 2 is a translucent member into which light from the reflecting member 40 is incident. The optical member 50 may have a function of controlling and emitting the light distribution of the light incident from the reflecting member 40. In the present embodiment, the optical member 50 is a disc-shaped Fresnel lens. The optical member 50 condenses the light from the reflecting member 40 and emits light having a substantially circular cross section.

  The optical member 50 is formed using a translucent material. For example, the optical member 50 can be formed using a transparent resin material such as acrylic or polycarbonate (PC), or a transparent material such as a glass material.

[2. Usage mode]
Next, the usage aspect of the lighting fixture 1 which concerns on this Embodiment is demonstrated using drawing.

  FIG. 8 is a cross-sectional view showing a state in which a part of the luminaire 1 according to the present embodiment is opened in the construction material 900. FIG. 8 shows a cross-sectional view when the bent portion 93 of the leaf spring 90 is positioned in the opening of the construction material 900. FIG. 9 is a cross-sectional view showing a state where the construction material 900 of the lighting fixture 1 according to the present embodiment has been inserted into the opening.

  When the lighting device 1 is inserted into the opening of the construction material 900, the distance between the frame body 6 and the device body 10 is increased as shown in FIG. That is, the shaft member 660 is disposed at the end of the first hole 22 of the frame body 6 on the side far from the instrument body 10. As a result, the bent portion 93 of the leaf spring 90 brought closer to the instrument main body 10 side can be disposed in the constricted portion 21 of the mounting base 20. That is, as shown in FIG. 8, the bent portion 93 of the leaf spring 90 can be arranged at a position where it does not interfere with the construction material 900. Then, the lighting fixture 1 in the state shown in FIG. 8 is further inserted into the opening of the construction material 900 (that is, the lighting fixture 1 is moved upward in FIG. 8) to illuminate the position shown in FIG. The instrument 1 is arranged. The bent portion 93 of the leaf spring 90 is disposed on the upper surface (the upper surface in FIG. 9) of the building material 900 after passing through the building material 900.

  As described above, the lighting fixture 1 can be disposed in the opening of the construction material 900. However, in the state shown in FIG. 9, the distance from the instrument body 10 to the frame body 6 is large. That is, the distance from the instrument main body 10 and the light source 30 to the construction material 900 is large. For this reason, as shown in FIG. 9, the light blocking angle A1 of the lighting fixture 1 is relatively small. Therefore, of the light emitted from the light source 30, the ratio of the light that is not emitted from the frame body 6 is large. That is, in the lighting fixture 1 shown in FIG. 9, the light extraction efficiency is low.

  However, in the lighting fixture 1, the light extraction efficiency can be increased by adjusting the arrangement position of the fixture body 10 with respect to the frame body 6 and the construction material 900. Hereinafter, the arrangement of the fixture body 10 that can improve the light extraction efficiency in the lighting fixture 1 will be described with reference to the drawings.

  FIG. 10 is a cross-sectional view showing a state in which the fixture body 10 of the lighting fixture 1 according to the present embodiment is arranged at a position close to the frame body 6.

  As shown in FIG. 10, the shaft member 660 of the lighting fixture 1 is set to the end portion of the first hole 22 on the side close to the fixture body 10. Thereby, the instrument main body 10 is disposed at a position close to the frame body 6 and the construction material 900. Therefore, as shown in FIG. 10, the light blocking angle B1 of the luminaire 1 can be made larger than the light blocking angle A1 shown in FIG. That is, the light extraction efficiency of the lighting fixture 1 can be increased. In the state shown in FIG. 10, the gap between the mounting base 20 and the frame 6 is narrower than the state shown in FIG. Therefore, in the state shown in FIG. 10, it is possible to suppress the space on the back side of the construction material 900 from being visible from the gap between the mounting base 20 and the frame body 6.

  In the lighting fixture 1 which concerns on this Embodiment, a light-projection direction can be inclined by rotating the mounting base 20 and the fixture main body 10 by making the shaft member 660 into a rotating shaft. Below, the usage aspect which inclines a light-projection direction is demonstrated using drawing.

  FIG. 11 is a cross-sectional view illustrating a state in which the fixture body 10 of the lighting fixture 1 according to the present embodiment is disposed at a position far from the frame body 6 and the light emission direction is inclined. FIG. 12 is a cross-sectional view showing a state in which the fixture body 10 of the lighting fixture 1 according to the present embodiment is disposed at a position close to the frame 6 and the light emission direction is inclined.

  As shown in FIGS. 11 and 12, in the lighting fixture 1 according to the present embodiment, by rotating the mounting base 20 and the fixture body 10 with respect to the frame body 6 with the shaft member 660 as the rotation axis, the light can be obtained. The emission direction (optical axis J) can be inclined with respect to the frame body 6 and the construction material 900.

  In the state of the lighting fixture 1 shown in FIG. 11, since the fixture main body 10 is disposed at a position far from the frame 6, the light blocking angles A2 and A3 are small as in the state shown in FIG. Note that the light blocking angles A2 and A3 illustrated in FIG. 11 indicate the maximum light blocking angle and the minimum light blocking angle of the lighting fixture 1 in the state illustrated in FIG. 11, respectively.

  On the other hand, in the state of the lighting fixture 1 shown in FIG. 12, the fixture main body 10 is arranged at a position relatively closer to the frame body 6 than in the state of the lighting fixture 1 shown in FIG. The light blocking angle B3 is larger than the maximum light blocking angle A2 and the minimum light blocking angle A3 shown in FIG. Therefore, the light extraction efficiency is higher in the state of the lighting fixture 1 shown in FIG. 12 than in the state of the lighting fixture 1 shown in FIG.

  Further, in the state shown in FIG. 12, the gap between the mounting base 20 and the frame 6 is narrower than the state shown in FIG. Therefore, in the state shown in FIG. 12, it is possible to prevent the space on the back side of the construction material 900 from being seen from the gap between the mounting base 20 and the frame body 6.

[3. Summary]
As described above, the lighting fixture 1 according to the present embodiment includes the light source 30, the fixture main body 10 having the concave portion 19 in which the light source 30 is arranged, and the mounting base 20 arranged in the opening 19a of the concave portion 19. The mount 20 is provided with a first hole 22 penetrating in a direction intersecting the optical axis J of the light source 30. The lighting fixture 1 is further arranged at a position corresponding to the first hole 22, a second hole 62 penetrating in a direction intersecting the optical axis J is formed, and a frame having a contact surface 85 that contacts the construction material 900. The body 6, one end 91 is attached to the frame body 6, and includes a plurality of leaf springs 90 that fix the frame body 6 to the construction material 900, and a shaft member 660 that passes through the first hole 22 and the second hole 62. . Here, at least one of the first hole 22 and the second hole 62 is a long hole extending in a direction intersecting with a plane parallel to the contact surface 85.

  Thereby, since the position in the long hole of the shaft member 660 can be adjusted, the freedom degree of the arrangement position with respect to the frame 6 of the instrument main body 10 can be raised. Therefore, for example, the light extraction efficiency of the lighting fixture 1 can be increased by bringing the fixture body 10 closer to the frame body 6.

  In the luminaire 1, the mounting base 20 may be rotatably attached to the frame 6 with an axis extending in a direction penetrating the first hole 22 and the second hole 62 as a rotation axis.

  Thereby, the direction of the optical axis J with respect to the frame 6 of the lighting fixture 1 can be inclined.

  Further, in the lighting fixture 1, the mounting base 20 may be rotatably attached to the frame 6 with an axis extending in a direction intersecting the direction penetrating the first hole 22 and the second hole 62 as a rotation axis. Good.

  Thereby, when the direction of the optical axis J with respect to the frame 6 of the lighting fixture 1 is inclined, the direction of the optical axis J can be further rotated.

  In the lighting fixture 1, the mounting base 20 has a cylindrical shape surrounding the optical axis J, and a notch 24 is formed at the end of the mounting base 20 on the side close to the frame body 6. Also good.

  Thereby, when the direction of the optical axis J with respect to the frame 6 of the lighting fixture 1 is inclined, it can suppress that the frame 6 and the mounting base 20 interfere.

  Further, in the lighting fixture 1, the mounting base 20 has a constricted portion whose dimension in the direction perpendicular to the optical axis J is smaller than the dimension in the direction perpendicular to the optical axis J at the end of the fixture body 10 on the side close to the mounting base 20. 21, and the constricted portion 21 may be provided at a position where the other end 92 of the leaf spring 90 in the mounting base 20 can be disposed.

  Thereby, when the lighting fixture 1 is inserted into the opening of the construction material 900, the other end 92 of the leaf spring 90 is disposed in the constricted portion 21, whereby interference between the leaf spring 90 and the construction material 900 can be suppressed.

  In the lighting fixture 1, a bent portion 93 may be formed on the other end 92 of the leaf spring 90.

  Thereby, since the bending part 93 is hooked on the construction material 900 by forming the bending part 93 in the leaf | plate spring 90, it can suppress that the lighting fixture 1 falls from the construction material 900. FIG. In addition, the lighting device 1 can be suspended from the construction material 900 by the bent portion 93 when the lighting device 1 is installed.

(Variations, etc.)
As mentioned above, although the lighting fixture which concerns on this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment.

  For example, in the lighting fixture 1 according to the above-described embodiment, the mounting base 20 is rotatably attached to the frame body 6 with an axis extending in a direction penetrating the first hole 22 and the second hole 62 as a rotation axis. However, the mounting base 20 may not be rotatably attached to the frame body 6.

  Moreover, in the lighting fixture 1 which concerns on the said embodiment, although the fixture main body 10 and the mounting base 20 are separate bodies, the structure of the fixture main body 10 and the mounting base 20 is not limited to this. The instrument body 10 and the mounting base 20 may be integrally formed.

  In the lighting fixture 1 according to the above embodiment, at least one of the first hole 22 and the second hole 62 is a long hole, but at least one of the first hole 22 and the second hole 62 is at least a contact surface. It is only necessary to have a long hole portion extending in a direction intersecting with a plane parallel to 85. For example, at least one of the first hole 22 and the second hole 62 may be an L-shaped hole.

  Moreover, in the lighting fixture 1 which concerns on the said embodiment, although the mounting base 20 has the constriction part 21, if there is no constriction part 21, if the interference with the leaf | plate spring 90 and the construction material 900 can be suppressed, a mounting base 20 does not necessarily have the constricted portion 21.

  In addition, the leaf spring 90 of the lighting fixture 1 according to the above embodiment has the bent portion 93, but the leaf spring 90 may not have the bent portion 93.

  Moreover, in said embodiment, although the light source 30 (LED light source) had the COB structure which mounted the LED chip directly on the base, it is not limited to this. For example, an LED module having an SMD (Surface Mount Device) structure may be used in place of the LED module having a COB structure. An LED module having an SMD structure is a package type LED element in which an LED chip (light emitting element) is mounted in a recess of a resin package (container) and a sealing member (phosphor-containing resin) is enclosed in the recess. One or a plurality of (SMD type LED elements) is mounted on a substrate.

  In each of the above embodiments, the LED is exemplified as the light emitting element. However, as the light emitting element, a semiconductor light emitting element such as a semiconductor laser, or other solid light emitting elements such as an organic EL (Electro Luminescence) element or an inorganic EL. An element may be used.

  Moreover, the lighting fixture 1 in said embodiment may be installed in construction materials other than a ceiling.

  In addition, it is realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, and forms obtained by making various modifications conceived by those skilled in the art to each embodiment. Forms are also included in the present invention.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 6 Frame 10 Appliance main body 24, 64 Notch part 19 Recessed part 19a Opening part 20 Mounting base 21 Neck part 22 First hole 30 Light source 62 Second hole 85 Contact surface 90 Leaf spring 91 One end 92 Other end 93 Bending 660 Shaft member 900 construction material

Claims (6)

It is a lighting fixture attached to the opening provided in the construction material,
A light source;
An instrument body having a recess in which the light source is disposed;
A mounting base disposed in the opening of the recess, wherein the mounting base is formed with a first hole penetrating in a direction intersecting the optical axis of the light source;
A frame that is disposed at a position corresponding to the first hole, has a second surface that penetrates in a direction intersecting the optical axis, and has a contact surface that contacts the construction material;
One end is attached to the frame, and a plurality of leaf springs fixing the frame to the construction material;
A shaft member penetrating the first hole and the second hole;
At least one of the first hole and the second hole is a long hole extending in a direction intersecting a plane parallel to the contact surface. The lighting fixture according to claim 1, wherein the mounting base is rotatably attached to the frame body with an axis extending in a direction penetrating the first hole and the second hole as a rotation axis. The lighting fixture according to claim 2, wherein the mounting base is rotatably attached to the frame with an axis extending in a direction intersecting the direction penetrating the first hole and the second hole as a rotation axis. The mounting base has a cylindrical shape surrounding the optical axis,
The lighting fixture according to claim 2, wherein a notch is formed at an end of the mounting base on the side close to the frame. The mounting base has a constricted portion whose dimension in a direction perpendicular to the optical axis is smaller than an end portion of the instrument main body close to the mounting base,
The lighting device according to any one of claims 1 to 4, wherein the constricted portion is provided at a position where the other end of the leaf spring in the mount can be disposed. The lighting fixture according to claim 1, wherein a bent portion is formed at the other end of the leaf spring.

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