Lighting device and apparatus

Abstract

To provide a lighting device and an apparatus which can suppress generation of noise that is generated by contact of a lamp cover with the apparatus.SOLUTION: A lighting device comprises a lamp for irradiating a target region with light, and an apparatus attached to a building part and having an accommodation part to which the lamp is attached. The lamp includes a pedestal, a light source part installed on the pedestal and emitting light, and a cover attached to the pedestal so as to cover the light source part. The lamp is attached to the apparatus with a part of the cover being exposed from the accommodation part toward the target region side. The lamp also includes a positioning mechanism which is positioned in the accommodation part and positions the lamp attached to the accommodation part so that the cover in the portion exposed from the accommodation part and the apparatus do not contact with each other when the lamp is attached to the apparatus.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present disclosure relates to a lighting device and a fixture including a lamp and a fixture to which the lamp is attached. [Background technology]

[0002] Conventionally, a lighting fixture is known that includes a lighting fixture that irradiates light to an illumination target area and a fixture that is attached to a construction part and to which the lighting fixture is attached. For example, Patent Document 1 discloses a lighting fixture that includes a light source module that is a lighting fixture, a power supply device that supplies power to the light source of the light source module, and a fixture body to which the light source module is attached. The light source module includes a support that supports a board on which a light source is provided, a cover that is attached to the support and covers the light source supported by the support, and a pair of side plates that are attached to both ends of the support and the cover in the longitudinal direction. The fixture body includes a storage section that stores at least a part of the power supply device and an end plate that closes the end of the storage section in the longitudinal direction. The storage section is formed of a bottom plate portion that faces the support of the light source module and a pair of side plate portions that extend from both sides of the bottom plate portion toward the light source module side. The pair of end plates have end faces that overlap the side plates of the light source module in the height direction of the fixture body. In this lighting fixture, when the light source module is attached to the fixture body, a portion of the end plate of the fixture body abuts against a side plate of the light source module exposed from the storage section in order to support the longitudinal end of the light source module. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6948599 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the lighting fixture disclosed in Patent Document 1 is configured so that a metal end plate and a resin side plate, which have different expansion coefficients, are in contact with each other at the longitudinal ends, so there is a risk of abnormal noise being generated from the contact area between the end plate and the side plate due to the stick-slip phenomenon.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a lighting device and fixture that can suppress the generation of abnormal noise caused by contact between the lighting fixture cover and the fixture. [Means for solving the problem]

[0006] The lighting device according to the present disclosure comprises a lighting fixture that irradiates light onto an area to be illuminated, and a fixture that is attached to a construction section and has a storage section in which the lighting fixture is attached, wherein the lighting fixture has a base, a light source section that is installed on the base and emits light, and a cover that is attached to the base so as to cover the light source section, and is attached to the fixture with a portion of the cover exposed from the storage section toward the area to be illuminated, and has a positioning mechanism that determines the position of the lighting fixture attached to the storage section so that the portion of the cover exposed from the storage section does not come into contact with the fixture when the lighting fixture is attached to the fixture.

[0007] The device disclosed herein is a device to which a lamp is attached, the lamp having a base, a light source unit that is placed on the base and emits light, and a cover that is attached to the base so as to cover the light source unit, and the device has a storage unit in which the lamp is attached with a portion of the cover exposed toward the area to be illuminated, and a positioning mechanism that is disposed in the storage unit and determines the position of the lamp attached to the storage unit so as not to come into contact with the portion of the cover exposed from the storage unit. Effect of the Invention

[0008] According to the present disclosure, a positioning mechanism is provided that determines the position of the lighting fixture attached to the storage section so that the cover of the portion exposed from the storage section does not come into contact with the fixture, thereby suppressing the generation of abnormal noise caused by contact between the lighting fixture cover and the fixture. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing an illumination device according to a first embodiment, viewed from above. [Diagram 2] 1 is a perspective view showing the lighting device according to the first embodiment from the bottom side. [Diagram 3] 1 is an exploded perspective view of a lighting device according to a first embodiment. [Figure 4] 1 is a vertical cross-sectional view in a short-side direction of an illumination device according to embodiment 1. FIG. [Diagram 5] 3 is an explanatory diagram showing an enlarged view of a connector attached to a base of the lighting device according to the first embodiment. FIG. [Figure 6] 1 is an exploded perspective view of a lighting device according to a first embodiment. FIG. [Figure 7] FIG. 2 is a perspective view showing a lamp restricting device of the lighting device according to the first embodiment. [Figure 8] 2A and 2B are explanatory diagrams illustrating the lighting device according to the first embodiment, showing a state before and after a light regulator is attached to a fixture body. [Figure 9] 1 is a vertical cross-sectional view showing one end in a longitudinal direction of an illumination device according to embodiment 1. FIG. [Figure 10] FIG. 11 is an exploded perspective view of a lighting device according to a second embodiment. [Figure 11] FIG. 11 is a partial perspective view showing an enlarged view of one end in the longitudinal direction of a lighting device according to a second embodiment. [Figure 12] FIG. 11 is an exploded perspective view of a lighting device according to a second embodiment. [Figure 13] FIG. 11 is a perspective view showing a cover of the lighting device according to the second embodiment. [Figure 14]10A to 10C are explanatory diagrams showing a procedure for attaching a cover of a lighting device according to a second embodiment to one end side in the longitudinal direction of a fixture body. [Figure 15] 10A to 10C are explanatory diagrams showing a procedure for attaching the obturator of the lighting device according to the second embodiment to the other end in the longitudinal direction of the fixture body. [Figure 16] 11 is a vertical cross-sectional view showing one end in a longitudinal direction of an illumination device according to embodiment 2. FIG. [Figure 17] 11 is an enlarged longitudinal sectional view showing a main part of an illumination device according to embodiment 3. FIG. [Figure 18] 13 is an enlarged longitudinal sectional view showing a main part of a modified example of the lighting device according to the third embodiment. FIG. [Figure 19] 11 is an enlarged longitudinal sectional view showing a main part of an illumination device according to embodiment 4. FIG. [Figure 20] 13 is an enlarged longitudinal sectional view showing a main part of a modified example of the lighting device according to the fourth embodiment. FIG. [Figure 21] FIG. 11 is a partial perspective view showing an enlarged view of one end in the longitudinal direction of a lighting device according to embodiment 5. [Figure 22] 13 is an enlarged longitudinal sectional view showing a main part of an illumination device according to embodiment 5. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will be omitted or simplified as appropriate. In addition, the shape, size, arrangement, etc. of the configurations shown in each drawing may be changed as appropriate.

[0011] Embodiment 1 FIG. 1 is a perspective view showing the lighting device 100 according to the first embodiment from the top side. FIG. 2 is a perspective view showing the lighting device 100 according to the first embodiment from the bottom side. FIG. 3 is a perspective view showing the lighting device 100 according to the first embodiment in an exploded state. FIG. 4 is a longitudinal cross-sectional view in the short side direction of the lighting device 100 according to the first embodiment. FIG. 5 is an explanatory diagram showing an enlarged view of the connector 14 attached to the base 1 of the lighting device 100 according to the first embodiment. FIG. 6 is an exploded perspective view of the fixture 102 of the lighting device 100 according to the first embodiment. FIG. 7 is a perspective view showing the luminaire restricting device 5 of the lighting device 100 according to the first embodiment. FIG. 8 is an explanatory diagram showing the lighting device 100 according to the first embodiment before and after the luminaire restricting device 5 is attached to the fixture body 3. FIG. 9 is a longitudinal cross-sectional view showing one end in the longitudinal direction of the lighting device 100 according to the first embodiment. In each drawing, for convenience of explanation, the longitudinal direction of the lighting device 100 is defined as the X-axis direction, the lateral direction of the lighting device 100 is defined as the Y-axis direction, and the direction perpendicular to the X-axis direction and the Y-axis direction is defined as the Z-axis direction. In the Z-axis direction, the direction of the Z2 arrow is the direction of gravity.

[0012] (Lighting device 100) As shown in Figs. 1 to 3, the lighting device 100 according to the first embodiment has an elongated shape extending in the longitudinal direction (X direction), is attached to a construction part 103, and irradiates light onto an irradiation target area. The lighting device 100 includes an elongated luminaire 101 that irradiates light onto an irradiation target area, and an elongated fixture 102 that is attached to the construction part 103 such as a system ceiling and has a storage part 305 to which the luminaire 101 is detachably attached. The construction part 103 is, for example, a T-bar, which is a member having a T-shaped cross section and extending along the longitudinal direction (X direction) of the lighting device 100. The construction parts 103 are arranged on both sides of the lighting device 100 in the lateral direction (Y direction).

[0013] As shown in Figures 2 to 5, the lighting fixture 101 has a base 1, a light source unit 12, a power supply unit 13, a cover 2, and a connector 14. On the other hand, the fixture 102 has a fixture body 3, a connector spring 32, a terminal block 33, an installation fixture 4, and a lighting fixture regulation fixture 5, as shown in Figures 1 to 9.

[0014] (Lighting 101) First, each component of the lamp 101 will be described with reference to Fig. 2 to Fig. 5. The base 1 is made of sheet metal. As shown in Fig. 3 and Fig. 4, the base 1 has a long, flat base 10 extending along the longitudinal direction (X direction) of the lamp 101, and a pair of side walls 11 formed by bending both end edges of the base 10 in the lateral direction (Y direction) upward (Z1 direction). As shown in Fig. 4, the base 1 has a concave cross-sectional shape due to the base 10 and the side walls 11.

[0015] As shown in Fig. 4, the base 10 has a light source unit 12 that emits light on the lower surface, which is the irradiation side. Also, as shown in Fig. 3, a power supply unit 13, a connector 14 that engages with the connecting spring 32 of the device 102, and a wire protector 15 are provided on the upper surface of the base 10. As shown in Fig. 4, the side wall 11 is bent at an angle of approximately 90 degrees on the side opposite to the side on which the light source unit 12 is provided. The tip of the side wall 11 is a curled portion 11a that is approximately C-shaped and is formed by folding back toward the inside of the base 1.

[0016] 2 and 4, the light source unit 12 has an elongated substrate 12a extending along the longitudinal direction (X direction) of the lamp 101, and a plurality of light emitting elements 12b mounted on the surface of the substrate 12a. The light emitting elements 12b are, for example, light emitting diode (Light Emitting Diode) elements. The light source unit 12 receives power from the power supply unit 13 to cause the light emitting elements 12b to emit light. The light emitting elements 12b may be, for example, a semiconductor laser, an organic EL, or an inorganic EL.

[0017] The power supply unit 13 is a power source that supplies power supplied from a terminal block 33 provided in the fixture 102 to the light-emitting element 12b. The power supply unit 13 is connected to the terminal block 33 via a lighting fixture side electric wire 13a. The power supply unit 13 is configured such that a power supply board having a power supply circuit that generates power to be supplied to the light-emitting element 12b is housed inside a long power supply case. The power supply circuit is composed of electronic components and the like mounted on the power supply board.

[0018] The cover 2 is a member formed using a light-transmitting material and attached to the base 1 so as to cover the periphery of the light-emitting element 12b of the light source unit 12. The light emitted from the light-emitting element 12b is irradiated to the irradiation target area through the cover 2. The light-transmitting material is, for example, a synthetic resin such as polycarbonate, acrylic, or polypropylene. The cover 2 is formed by injection molding, extrusion molding, three-dimensional additive manufacturing, or the like, depending on the material used.

[0019] 1 to 4, the cover 2 is formed in a long box shape having a light-transmitting exit surface and an opening surface facing the exit surface. Specifically, the cover 2 has an elongated, concave cover main body 20 having a curved surface that serves as the exit surface, and cover end portions 21 that close both end surfaces in the longitudinal direction (X direction) of the cover main body 20. The cover end portions 21 are attached to the cover main body 20 by, for example, adhesion or the like.

[0020] The cover body 20 has a concave light-transmitting portion 200 that transmits light emitted from the light-emitting element 12b, and a pair of attachment portions 201 provided along the opening edge of the light-transmitting portion 200.

[0021] 4, the light-transmitting section 200 has a curved-surface-shaped light-transmitting main section 200a that faces the light source section 12 and irradiates the light emitted from the light source section 12 downward (Z2 direction), and light-transmitting side sections 200b that rise from both ends of the light-transmitting main section 200a in the short side direction (Y direction) toward the built section 103 and irradiate the light emitted from the light source section 12 sideways (Y direction). In the illustrated example, the light-transmitting section 200 has a substantially U-shaped vertical cross section, but may have, for example, a V-shaped, W-shaped, rectangular, or other shape.

[0022] The upper end of the light-transmitting side portion 200b is bent toward the inside of the opening of the cover body portion 20. An attachment portion 201 is provided at the tip of each of the light-transmitting side portions 200b.

[0023] The mounting portion 201 is formed along the longitudinal direction (X direction) of the cover 2, and is provided for mounting the cover 2 to the base 1. As shown in Fig. 4, the mounting portion 201 is formed in a substantially L-shape by a support portion 201a that supports the base 1 and a holding portion 201b that is held by the base 1.

[0024] The support portion 201a is formed by extending in the short-side direction (Y direction) of the cover main body portion 20 so as to cover a part of the opening of the cover main body portion 20. The base portion 10 of the pedestal 1 is placed on the upper surface of the support portion 201a. The support portions 201a are formed in parallel along the longitudinal direction (X direction) of the cover 2. Between the two parallel support portions 201a, 201a, the light-emitting element 12b of the light source portion 12 is disposed facing the light-transmitting main portion 200a. The light emitted from the light-emitting element 12b is irradiated to the irradiation target area via the light-transmitting portion 200.

[0025] The holding portion 201b is formed along the side wall portion 11 of the base 1, and is connected to the edge of the light-transmitting side portion 200b at the middle portion in the height direction (Z direction). A hook portion 201c is formed at the upper end of the holding portion 201b by curving the upper end toward the inside of the base 1. The hook portion 201c is provided to be hooked onto the curled portion 11a of the base 1.

[0026] The cover 2 can be attached to the base 1 by placing the base 1 between a pair of attachment parts 201, placing the base 10 of the base 1 on the upper surface of the support parts 201a, and hooking each hook part 201c onto the curled parts 11a. Note that, in order to attach the cover 2 to the base 1, the attachment parts 201 may be elastically deformed while attaching the cover 2 to the base 1, or the cover 2 may be slid along the longitudinal direction (X direction) while attaching the cover 2 to the base 1.

[0027] The cover 2 is restricted from moving in the gravity direction Z2 by hooking the hook portion 201c to the curled portion 11a. The cover 2 is restricted from moving in the short side direction (Y direction) by abutting the holding portion 201b against the side wall portion 11 of the base 1. The rigidity of the lighting fixture 101 can be increased by attaching the cover 2 to the base 1.

[0028] The connector 14 is provided to engage with the connector spring 32 provided on the fixture 102 and to attach the lighting fixture 101 to the fixture 102. As shown in FIG. 3, the connector 14 is provided at a position corresponding to the connector spring 32, at both ends of the base 10 in the longitudinal direction (X direction). As shown in FIG. 4 and FIG. 5, the connector 14 has a connector portion 14a that engages with the connector spring 32 and a pair of holder portions 14b that are hooked to the hook portions 201c of the cover 2. As an example, the connector portion 14a is concave, and an opening 14c through which the connector spring 32 is inserted is formed in the middle portion. As an example, the holder portion 14b is hook-shaped, and protrudes from a side surface of the connector portion 14a toward the mounting portion 201 of the cover 2 and is hooked to the hook portion 201c of the cover 2. The connector 14 is provided at a position and in a number that is appropriately changed according to the shape and size of the lighting device 100. Furthermore, the connector 14 is not limited to the configuration shown in the figures, and may have other configurations as long as it is capable of holding the connector spring 32.

[0029] (Apparatus 102) Next, each component of the fixture 102 will be described with reference to Figures 1 to 9. The fixture 102 has the fixture body 3, the connecting spring 32, the terminal block 33, the installation tool 4, and the light fixture regulation tool 5, as described above.

[0030] As shown in Figs. 1 to 3, the fixture body 3 has a long fixture body section 30 extending along the longitudinal direction (X direction) of the fixture 102, and fixture end sections 31 closing both end faces of the fixture body section 30 in the longitudinal direction (X direction). The fixture body section 30 has a top wall section 301, a side wall section 302, a connection section 303, and an inclined section 304. The length of the fixture body section 30 in the lateral direction (Y direction) is approximately the same as the interval between the built-in sections 103 arranged on both sides of the lighting device 100. The overall shape of the fixture body 3 is not limited to the shape shown in the drawings, and may be another shape.

[0031] The top wall portion 301 is a plate-like portion extending along the longitudinal direction (X direction) of the device 102. As shown in Fig. 1 and Fig. 8(a), the top wall portion 301 has installation tool attachment holes 35 into which installation tool fasteners 43, such as screws, are inserted in a plurality of regions where the installation tools 4 are attached. In the illustrated example, the regions where the installation tools 4 are attached are provided at both ends of the top wall portion 301 in the longitudinal direction (X direction), but are not limited thereto, and may be provided at a plurality of locations along the longitudinal direction (X direction) of the top wall portion 301. The installation tool 4 is attached to the device main body 3 using the installation tool fastener 43 in at least one of the regions where the installation tool attachment holes 35 are formed.

[0032] The top wall portion 301 has an attachment hole for attaching and fixing the connecting spring 32 in an area where the connecting spring 32 is attached. Also, the top wall portion 301 has a restrictor attachment hole 36 for fixing the lamp restrictor 5 in an area where the lamp restrictor 5 is attached, as shown in Fig. 6. Also, the top wall portion 301 has an electric wire insertion hole 13b into which an electric wire is inserted, as shown in Fig. 3. An electric wire (not shown) that connects the external power source and the power source unit 13 is drawn into the electric wire insertion hole 13b.

[0033] The side walls 302 are a pair of plate-like parts extending perpendicularly from both ends of the top wall 301 in the width direction (Y direction) toward the irradiation target area. The space surrounded by the top wall 301, the side walls 302, and the fixture end 31 forms a rectangular parallelepiped housing section 305 in which the lighting fixture 101 is housed. The lighting fixture 101 is attached to the fixture 102 with a part of the cover 2 exposed from the housing section 305 toward the irradiation target area.

[0034] The connecting portion 303 is a portion that extends from the tip of the side wall portion 302 toward the outside in the short side direction (Y direction) of the device main body portion 30. The connecting portion 303 connects the side wall portion 302 and the inclined portion 304. The connecting portion 303 may be inclined at an inclination angle different from that of the inclined portion 304, may be a flat surface parallel to the top wall portion 301, or may be a curved surface.

[0035] The inclined portion 304 is a portion that extends from the tip of the connecting portion 303 toward the irradiation target area and toward the outside in the short side direction (Y direction) of the fixture body portion 30. A reflective film or the like that reflects light is formed on the inclined portion 304. As a result, a portion of the light emitted from the lighting fixture 101 housed in the housing portion 305 hits the inclined portion 304 and is reflected toward the irradiation target area. The inclined portion 304 is shaped to house the entire lighting fixture 101 that is attached. The lighting fixture 101 is housed entirely in the fixture body 3 when attached to the fixture body 3. The fixture body 3 may be shaped to house a portion of the attached lighting fixture 101.

[0036] As shown in Figs. 1 to 3, the appliance end portions 31 are members extending along the short-side direction (Y direction) of the appliance body portion 30, and are configured as a pair provided on both end faces of the appliance body portion 30 in the longitudinal direction (X direction). The pair of appliance end portions 31 are connected to the top wall portion 301, the side wall portion 302, the connection portion 303, and the inclined portion 304, and support each of them from both sides. In addition, the appliance end portions 31 are formed with a plate-shaped protruding portion 31a that protrudes toward the storage portion 305. As shown in Fig. 9, the protruding portion 31a is provided to close the gap S generated between the appliance end portion 31 and the cover end portion 21 as much as possible, and to prevent foreign matter such as insects or dust from entering the inside of the storage portion 305 through the gap S.

[0037] The connecting spring 32 is attached to the inner surface of the top wall 301 and accommodated in the accommodation portion 305, and is a member that is hooked on the connector 14 to fix the lighting fixture 101 to the fixture 102. As shown in Figs. 3 and 6, the connecting spring 32 is provided at a position corresponding to the connector 14, at both ends of the top wall 301 in the longitudinal direction (X direction). As shown in Fig. 8(a), the connecting spring 32 has a connecting portion 32a and a fixing portion 32b. The connecting portion 32a is a leaf spring made by bending a metal plate-like member. The lighting fixture 101 is attached to the fixture body 3 by utilizing the bending of the connecting portion 32a. The fixing portion 32b is provided at one end of the connecting portion 32a, and is a portion that is attached to the top wall 301 by a connecting spring fixing device 32c made of a screw or the like. The connecting spring fixture 32c is screwed into the fixing portion 32b and a mounting hole formed in the top wall portion 301. In this way, the connecting spring 32 is fixed to the top wall portion 301.

[0038] As shown in Fig. 3, the terminal block 33 is attached to the inner surface of the top wall 301 and accommodated in the accommodation portion 305. Each electric wire is connected to the terminal block 33. For example, an electric wire extending from an external power source is connected to the terminal block 33. Also, an appliance-side electric wire 34 is connected to the terminal block 33. The appliance-side electric wire 34 is connected to a lamp-side electric wire 13a that is connected to the power source unit 13. As a result, power is supplied from the external power source to the light source unit 12 of the lamp 101 via the terminal block 33.

[0039] As shown in Figs. 1 to 3, the installation tool 4 is a member that is fixed to the upper surface of the ceiling wall portion 301 and attached to the construction portion 103. The installation tool 4 is attached to both ends of the fixture body 3 in the longitudinal direction (X direction), one at a time. The installation tool 4 is configured by forming a metal plate, which is a metal plate material, into a concave shape. The installation tool 4 has a mounting tool 40, a placement tool 41, and a regulating tool 42. The mounting tool 40 is a plate-like part that extends along the short side direction (Y direction) of the fixture body 3. A mounting hole is formed in the center of the mounting tool 40 for passing a mounting tool fixing tool 43 such as a screw. The mounting tool 40 is fixed to the upper surface of the ceiling wall portion 301 by the mounting tool fixing tool 43.

[0040] The mounting tool 41 is a plate-like member provided on both ends of the mounting tool 40 in the longitudinal direction (Y direction). The mounting tool 41 protrudes from both ends of the mounting tool 40 toward the irradiation target area, and is placed on the upper surface of the construction part 103. The restricting tool 42 is a claw-like member provided to protrude from the tip of the mounting tool 41, and is hooked onto the construction part 103. The installation tool 4 is attached to the construction part 103 by placing the mounting tool 41 on the upper surface of the construction part 103 and hooking the restricting tool 42 onto the construction part 103.

[0041] The number of installation tools 4 is not limited to two as shown in the figure, and three or more may be provided. Also, the installation tool 4 may need to be moved and its position adjusted depending on the arrangement of equipment components such as CT clips, T hangers (T-bar hangers), or T-bar receiving channels at the installation site of the lighting device 100.

[0042] (Lighting regulator 5) 3, 4 and 6, the lamp restriction device 5 is disposed in the housing portion 305 when the lamp 101 is attached to the fixture 102, and is a member having a positioning mechanism 53 for determining the position of the lamp 101 housed in the housing portion 305 so that the portion of the cover 2 exposed from the housing portion 305 does not come into contact with the fixture 102. The lamp restriction devices 5 are attached to both ends of the fixture body 3 in the longitudinal direction (X direction), one on each side.

[0043] The lamp restricting device 5 is formed of sheet metal, which is a metal plate material, as shown in Fig. 7. The lamp restricting device 5 has a flat restricting device base 50 and a pair of plate-shaped restricting device side parts 51 extending perpendicularly from both ends of the restricting device base 50 in the width direction (Y direction) toward the irradiation target area side.

[0044] The regulator base 50 is a part that is fixed in contact with the inner surface of the top wall 301 of the fixture body 3. As shown in Figs. 7 and 8(b), the regulator base 50 has a cutout 50a cut out so as not to interfere with the connecting spring 32 when fixed to the inner surface of the top wall 301. The cutout 50a is rectangular as an example, but may have other shapes. Instead of the cutout 50a, a through hole may be provided in the regulator base 50. As shown in Figs. 6 and 7, the regulator base 50 has a base insertion hole 50b through which the regulator fixture 52 is inserted. The lamp regulator 5 is fixed to the top wall 301 by screwing the regulator fixture 52 inserted into the base insertion hole 50b into the regulator attachment hole 36 formed in the top wall 301. The light fixture restriction device 5 has the cutout portion 50a, and therefore does not interfere with the range of motion (deformation range) of the connecting spring 32. In other words, even if the light fixture restriction device 5 is fixed to the top wall portion 301, there is no hindrance to the connection between the connecting spring 32 and the connector 14.

[0045] As shown in FIG. 8(b), the pair of regulator side parts 51 are arranged along both sides of the connecting spring 32 when the lamp regulator 5 is fixed to the top wall part 301. Positioning mechanisms 53 protruding toward the connecting spring 32 are formed on the opposing inner surfaces of the pair of regulator side parts 51. The positioning mechanisms 53 are convex parts formed on the regulator side parts 51. The positioning mechanisms 53 are formed by applying a press process such as drawing to a part of the pair of regulator side parts 51 so as to protrude in a direction approaching each other. The positioning mechanisms 53 may be formed by attaching separate members to the opposing inner surfaces of the pair of regulator side parts 51. As shown in FIG. 4 and FIG. 9, the pair of positioning mechanisms 53 abut against the upper surface of the holding part 14b of the connecting tool 14 attached to the base part 10 of the base 1 when the lamp 101 is attached to the fixture 102. As a result, even if the luminaire 101 is pulled toward the storage section 305 of the fixture body 3 (in the Z1 direction), the movement is restricted by the holding section 14b hitting the positioning mechanism 53. As shown in Fig. 9, in this state, a gap C is provided between the protruding section 31a of the fixture end 31 and the upper surface of the cover end 21 of the luminaire 101, so that the fixture end 31 and the cover end 21 do not come into contact with each other. Therefore, the lighting device 100 can suppress abnormal noise caused by the stick-slip phenomenon that occurs when the fixture end 31 comes into contact with the cover end 21, which has a different expansion coefficient from that of the fixture end 31.

[0046] The connector 14 is fixed to the metal base 1 of the lighting fixture 101. The difference in expansion coefficient between the metal fixture body 30 and the base 1 is small, and the difference in the amount of expansion and contraction along the longitudinal direction (X direction) is also small. Therefore, the risk of abnormal noise occurring when the positioning mechanism 53 comes into contact with the holding part 14b of the connector 14 that follows the base 1 is extremely small compared to when the overhanging part 31a of the fixture end 31 comes into contact with the resin cover end 21.

[0047] The positioning mechanism 53 is configured to provide a gap C so that the overhang 31a does not come into contact with the upper surface of the cover end 21. The size and shape of the positioning mechanism 53 and the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 are determined taking into consideration manufacturing variations of parts, assembly variations, and installation variations of the lighting fixture 101 during construction. The positioning mechanism 53 is preferably formed so that the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 is approximately 0.3 mm or more.

[0048] In addition, when the movement of the luminaire 101 is restricted by the positioning mechanism 53, the lighting device 100 may have slight contact between the fixture end 31 and the cover end 21 so long as the fixture end 31 and the cover end 21 are not pressing against each other, thereby reducing the risk of foreign matter entering.

[0049] As described above, the lighting device 100 according to the first embodiment includes the lighting fixture 101 that irradiates the illumination target area with light, and the fixture 102 that is attached to the construction part 103 and has the storage part 305 in which the lighting fixture 101 is attached. The lighting fixture 101 includes the base 1, the light source part 12 that is installed on the base 1 and emits light, and the cover 2 that is attached to the base 1 so as to cover the light source part 12, and is attached to the fixture 102 in a state in which a part of the cover 2 is exposed from the storage part 305 toward the illumination target area side. The lighting device 100 has a positioning mechanism 53 that is arranged in the storage part 305 and is attached to the storage part 305 in a state in which the lighting fixture 101 is attached to the fixture 102, so that the part of the cover 2 exposed from the storage part 305 does not come into contact with the fixture 102. Therefore, the lighting device 100 can suppress the generation of abnormal noise caused by the cover 2 of the lighting fixture 101 coming into contact with the fixture 102.

[0050] Embodiment 2 Next, the lighting device 100A according to the second embodiment will be described with reference to Figs. 10 to 16. Fig. 10 is an exploded perspective view of the lighting device 100A according to the second embodiment. Fig. 11 is an enlarged partial perspective view of one end in the longitudinal direction (X direction) of the luminaire 101 of the lighting device 100A according to the second embodiment. Fig. 12 is an exploded perspective view of the device 102 of the lighting device 100A according to the second embodiment. Fig. 13 is a perspective view showing the obturator 6 of the lighting device 100A according to the second embodiment. Fig. 14 is an explanatory diagram showing a procedure for attaching the obturator 6 of the lighting device 100A according to the second embodiment to one end side in the longitudinal direction (X direction) of the device main body 3. Fig. 15 is an explanatory diagram showing a procedure for attaching the obturator 6 of the lighting device 100A according to the second embodiment to the other end side in the longitudinal direction (X direction) of the device main body 3. Fig. 16 is a vertical cross-sectional view showing one end in the longitudinal direction (X direction) of the lighting device 100A according to the second embodiment. The same components as those of the illumination device 100 described in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0051] (Lighting device 100A) In the lighting device 100A according to the second embodiment, instead of the lamp regulation device 5 described in the first embodiment, the fixture 102 has a blocking device 6, and is characterized in that the blocking device 6 is provided with a positioning mechanism 63.

[0052] As shown in Fig. 10 and Fig. 11, the lighting fixture 101 has a base 1, a light source unit 12, a power supply unit 13, a connector 14, a wire protector 15, and a locking spring 16. On the other hand, the fixture 102 has a fixture body 3, a connector spring 32, a terminal block 33, a hook 37, an installation fixture 4, and a blocking fixture 6, as shown in Fig. 10, and Figs. 12 to 15.

[0053] (Lighting 101) The base 1, the light source unit 12, and the power supply unit 13 have the same configuration as those in the first embodiment. The connector 14 has basically the same configuration as those in the first embodiment, but is provided only on one end side in the longitudinal direction (X direction) of the base 10. The wire protectors 15 are provided on both ends of the base 10 in the longitudinal direction (X direction). The locking spring 16 is provided on the other end side in the longitudinal direction (X direction) of the base 10. The locking spring 16 is provided to be hooked on a hooking device 37 provided on the fixture 102 to attach the lighting fixture 101 to the fixture 102. The lighting fixture 101 is attached to the fixture 102 by hooking the connecting spring 32 on the connector 14 and hooking the locking spring 16 on the hooking device 37.

[0054] (Apparatus 102) As shown in Figs. 14 and 15, the instrument body 3 has the same configuration as that of the above-mentioned embodiment 1, except that the instrument protrusion 38 and the obturator insertion hole 39 are formed in the instrument body 30. The instrument protrusion 38 is formed in the top wall 301 and is provided to restrict the movement of the obturator 6. The instrument protrusion 38 is provided at both ends of the top wall 301 in the longitudinal direction (X direction). The instrument protrusion 38 is formed in a claw shape by cutting and raising so as to protrude from the top wall 301 toward the irradiation target area. The instrument protrusion 38 may be formed by other processing methods other than cutting and raising, or may be provided by attaching a member separate from the instrument body 30 to the top wall 301. The position at which the instrument protrusion 38 is provided is not limited to the position shown in the figure, and may be appropriately changed in the arrangement relationship of other members.

[0055] The obturator insertion holes 39 are slit-shaped through-holes formed for attaching the obturator 6 to the instrument body 30. The obturator insertion holes 39 are formed at both ends of the top wall 301 in the longitudinal direction (X direction) and at the boundary between the top wall 301 and one of the pair of side walls 302.

[0056] The connecting spring 32 has the same configuration as in the first embodiment. As shown in Figs. 10 and 12, the connecting spring 32 is provided at a position corresponding to the connecting device 14, and is provided only at one end side in the longitudinal direction (X direction) of the top wall portion 301. The connecting spring 32 is fixed to the top wall portion 301 by a connecting spring fixing device 32c made of a screw or the like. The hook 37 is provided at the other end side in the longitudinal direction (X direction) of the top wall portion 301, and hooks onto the locking spring 16 to fix the lighting device 101 to the fixture 102. The hook 37 is formed with a hook hole 37a that hooks onto the locking spring 16. The hook 37 is fixed to the top wall portion 301 by a hook fixing device 37b such as a screw.

[0057] The terminal block 33 and the installation fixture 4 have the same configuration as in the first embodiment.

[0058] (obturator 6) As shown in Figs. 10 and 12, the blocking device 6 is movably attached to the storage section 305 of the device body 3 to block unused installation tool mounting holes 35 and prevent foreign objects such as insects or dust from entering the storage section 305 through the installation tool mounting holes 35. The blocking device 6 is fixed to the top wall section 301 together with the installation tool 4 using an installation tool fixing device 43, and is integrated with the device body 3 and the installation tool 4. The blocking device 6 is a sheet metal, which is a metal plate material. As shown in Fig. 13, the blocking device 6 has a base 60, an erected portion 61, a protruding portion 62, and a positioning mechanism 63.

[0059] 13, the base 60 is a rectangular plate-like portion that is attached to the top wall portion 301 of the device main body 3 and covers the unused installation tool mounting holes 35. A base through-hole 64 is formed in the center of the base 60 so as not to interfere with the connecting spring 32. The size of the base through-hole 64 is larger than the size of the area where the connecting spring 32 is attached. The connecting spring 32 is fixed to the top wall portion 301 via the base through-hole 64.

[0060] At the four corners of the base 60, base insertion holes 65 and 66 into which the installation tool fixing tool 43 is inserted are formed. The base insertion holes 65 and 66 are formed corresponding to the mounting areas of the multiple installation tools 4 on the top wall 301. The base insertion hole 65 and the base insertion hole 66 are formed corresponding to the mounting areas of the different installation tools 4 on the top wall 301, respectively. Therefore, the base insertion hole 66 is formed at a position away from the base insertion hole 65 by a dimensional difference L1 along the short direction (Y direction) of the instrument main body 30. In other words, the base insertion hole 65 and the base insertion hole 66 formed corresponding to the mounting areas of the different installation tools 4 are not aligned along the longitudinal direction (X direction) of the instrument main body 30, but are shifted. The dimensional difference L1 is equal to or less than the movable dimension M along the width direction (Y direction) of the obturator 6. The thickness dimension D of the base 60 is a thickness that can pass through the obturator insertion hole 39.

[0061] 13, the erected portion 61 is a plate-like portion erected from one end edge along the longitudinal direction (X direction) of the base portion 60. The erected portion 61 is inserted into the obturator insertion hole 39, and abuts against the outside of the side wall portion 302 in which the obturator insertion hole 39 is formed, when the obturator 6 is attached to the storage portion 305 of the instrument body 3. At this time, the base portion 60 abuts against the top wall portion 301 of the instrument body 3. A length dimension L2 of the erected portion 61 along the longitudinal direction (X direction) of the instrument body 3 is a length that allows it to pass through the obturator insertion hole 39 formed in the side wall portion 302.

[0062] The length dimension L3 of the erected portion 61 along the vertical direction (Z direction) of the instrument body 3 is greater than the length dimension along the vertical direction (Z direction) of the obturator insertion hole 39. In other words, the length dimension L3 of the erected portion 61 is a length that prevents the obturator 6 from passing through the obturator insertion hole 39 in a state where the obturator 6 is attached to the storage portion 305 of the instrument body 3.

[0063] As shown in FIG. 13, the protruding portion 62 is a portion that protrudes from the base portion 60 and restricts the movement of the base portion 60 by abutting against the outer edge of the obturator insertion hole 39. The protruding portion 62 protrudes in the same direction as the erected portion 61. The protruding portion 62 is formed by a cutting and drawing process, but may be formed by a cutting and raising process. The protruding portion 62 may also be configured to protrude from the base portion 60 by attaching a member separate from the base portion 60 to the base portion 60. The protruding dimension L4 of the protruding portion 62 is a length that does not allow the protruding portion 62 to pass through the obturator insertion hole 39. This defines a movable dimension M of the obturator 6 along the width direction (Y direction) of the obturator 6.

[0064] (Positioning mechanism 63) As shown in FIG. 13, the positioning mechanism 63 is a plate-shaped convex part erected from one end of the base 60 along the short side direction (Y direction). The positioning mechanism 63 is formed by bending one end edge of the base 60 by press processing so as to protrude toward the lighting fixture 101. The positioning mechanism 63 is formed with a through hole 63a for passing the fixture protrusion 38. The edge of the base 60 of the obturator 6 is fitted into the claw-shaped fixture protrusion 38 through the through hole 63a. The positioning mechanism 63 may be configured to protrude from the base 60 by attaching a member separate from the base 60 to the base 60. In addition, when the edge of the base 60 not provided with the positioning mechanism 63 is fitted into the fixture protrusion 38, it is not necessarily necessary to form the through hole 63a.

[0065] As shown in FIG. 16, when the lighting fixture 101 is attached to the fixture 102, the tip of the positioning mechanism 63 abuts against the upper surface of the wire protector 15 attached to the base 10 of the base 1. As a result, even if the lighting fixture 101 is pulled toward the housing portion 305 side (Z1 direction) of the fixture body 3, the wire protector 15 abuts against the positioning mechanism 63, and the movement is restricted. In this state, for example, a gap C is provided between the protruding portion 31a of the fixture end 31 and the cover end 21 of the lighting fixture 101, so that the fixture end 31 and the cover end 21 do not come into contact with each other. Therefore, the lighting device 100A can suppress abnormal noise caused by the stick-slip phenomenon that occurs when the fixture end 31 comes into contact with the cover end 21, which has a different expansion coefficient from that of the fixture end 31.

[0066] The wire protector 15 is fixed to the metal base 1 of the lighting fixture 101. The difference in expansion coefficient between the metal fixture body 30 and the base 1 is small, and the difference in the amount of expansion and contraction along the longitudinal direction (X direction) is also small. Therefore, the risk of abnormal noise occurring when the positioning mechanism 63 comes into contact with the wire protector 15 that follows the base 1 is extremely small compared to when the overhanging portion 31a of the fixture end 31 comes into contact with the resin cover end 21.

[0067] Furthermore, the positioning mechanism 63 is not limited to a configuration in which it abuts against the wire protector 15. The positioning mechanism 63 may be configured such that the tip abuts against the base 10 of the base 1, for example, or may be configured such that the tip abuts against another component of the lighting fixture 101.

[0068] The positioning mechanism 63 is configured to provide a gap C so that the overhang 31a does not come into contact with the upper surface of the cover end 21. The size and shape of the positioning mechanism 63 and the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 are determined taking into consideration manufacturing variations of parts, assembly variations, and installation variations of the lighting fixture 101 during construction. The positioning mechanism 63 is preferably formed so that the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 is approximately 0.3 mm or more.

[0069] In addition, in the lighting device 100A, when the movement of the lamp 101 is restricted by the positioning mechanism 63, the fixture end 31 and the cover end 21 may be in slight contact with each other as long as they are not pressing against each other, thereby reducing the risk of foreign matter entering.

[0070] (Assembly of the obturator 6) Next, a procedure for attaching the obturator 6 to the storage section 305 will be described with reference to Figures 14 and 15. Figure 14 shows a procedure for attaching the obturator 6 to the storage section 305 at one end side where the connecting spring 32 is provided in the longitudinal direction (X direction) of the instrument 102. Figure 14(a) shows a state where the erected portion 61 of the obturator 6 is inserted into the obturator insertion hole 39 of the instrument body 3. As shown in Figure 14(a), first, the erected portion 61 of the obturator 6 is inserted into the obturator insertion hole 39 from the inside of the storage section 305.

[0071] Fig. 14(b) shows the state where the base 60 of the obturator 6 abuts against the top wall 301. As shown in Fig. 14(b), when the erected portion 61 is completely inserted into the obturator insertion hole 39 and the erected portion 61 is disposed outside the accommodation portion 305, the base 60 abuts against the top wall 301. At that time, the obturator 6 is disposed so as not to overlap with the instrument protruding portion 38 protruding from the top wall 301.

[0072] 14(c) shows a state in which the obturator 6 is fitted into the instrument protruding portion 38. As shown in FIG. 14(c), the obturator 6 is moved until one end of the base 60 is fitted into the instrument protruding portion 38, and a part of the base 60 is supported by the instrument protruding portion 38. In addition, the connecting spring mounting hole 32d of the top wall portion 301 is disposed inside the base through-hole 64.

[0073] Thereafter, the connecting spring 32 is fixed to the top wall 301 using the connecting spring fixing device 32c. In this state, the obturator 6 is restricted from moving along the longitudinal direction (X direction) of the instrument body 30 and along the direction (Z direction) intersecting with the top wall 301. In this state, the obturator 6 is also allowed to move along the lateral direction (Y direction) of the instrument body 30 within a range permitted by the erected portion 61, which cannot pass through the obturator insertion hole 39, and the protruding portion 62 of the base 60.

[0074] While the obturator 6 is moved along the short-side direction (Y direction) of the device main body 30, the position of the obturator 6 is determined so that the installation tool mounting hole 35 to which the installation tool 4 is attached overlaps with the base insertion hole 65 or 66 of the base 60. Then, the installation tool fixing tool 43 is used to attach the installation tool 4 and the obturator 6 to the top wall 301.

[0075] Fig. 15 shows a procedure for attaching the obturator 6 to the housing section 305 on the other end side where the hook 37 is provided in the longitudinal direction (X direction) of the instrument 102. Fig. 15(a) shows the state where the erected portion 61 of the obturator 6 is inserted into the obturator insertion hole 39 of the instrument body 3. As shown in Fig. 15(a), first, the erected portion 61 of the obturator 6 is inserted into the obturator insertion hole 39 from the inside of the housing section 305.

[0076] 15(b) shows the state where the base 60 of the obturator 6 abuts against the top wall 301. As shown in FIG. 15(b), when the erected portion 61 is completely inserted into the obturator insertion hole 39 and the erected portion 61 is disposed outside the storage portion 305, the base 60 abuts against the top wall 301. At that time, the obturator 6 is disposed so as not to overlap with the instrument protruding portion 38 protruding from the top wall 301.

[0077] Fig. 15(c) shows a state in which the obturator 6 is fitted into the instrument projection 38. As shown in Fig. 15(c), the obturator 6 is moved until one end of the base 60 is fitted into the instrument projection 38, and a part of the base 60 is supported by the instrument projection 38.

[0078] After that, the hook 37 is placed between the obturator 6 and the instrument end 31. Then, the hook 37 is fixed to the top wall 301 by using the hook fixture 37b. In this state, the obturator 6 is restricted from moving along the longitudinal direction (X direction) of the instrument body 30 and along the direction intersecting with the top wall 301 (Z direction). In this state, the obturator 6 is allowed to move along the width direction (Y direction) within the range allowed by the erected portion 61, which cannot pass through the obturator insertion hole 39, and the protruding portion 62 of the base portion 60.

[0079] While the obturator 6 is moved along the short-side direction (Y direction) of the device main body 30, the position of the obturator 6 is determined so that the installation tool mounting hole 35 to which the installation tool 4 is attached overlaps with the base insertion hole 65 or 66 of the base 60. Then, the installation tool fixing tool 43 is used to attach the installation tool 4 and the obturator 6 to the top wall 301.

[0080] In addition, the closure 6 placed at the end toward which the hook 37 is directed may not have a base through hole 64, for example, or may have a configuration for engaging with the locking spring 16.

[0081] As described above, in the lighting device 100A according to the second embodiment, the fixture 102 has the obturator 6 movably attached inside the storage section 305. The storage section 305 has an installation tool mounting hole 35 through which the installation tool fixing device 43 for mounting the installation tool 4 passes, for each of a plurality of regions in which the installation tool 4 is to be mounted. The installation tool 4 is fixed in at least one of the plurality of regions in which the installation tool mounting hole 35 is formed. The obturator 6 is configured to block an unused installation tool mounting hole 35 to which the installation tool 4 is not attached. The positioning mechanism 63 is a convex portion formed on the obturator 6, and is configured to determine the position of the lighting tool 101 attached to the storage section 305 by abutting against a part of a component of the lighting tool 101.

[0082] Therefore, the lighting device 100A according to the second embodiment can prevent foreign objects such as insects or dust from entering the storage section 305 by blocking the unused installation tool mounting holes 35 with the blocking tool 6. Furthermore, the lighting device 100A has a positioning mechanism 63 for determining the position of the luminaire 101 attached to the storage section 305 so that the portion of the cover 2 exposed from the storage section 305 does not come into contact with the fixture 102, and therefore can prevent the generation of abnormal noise caused by the cover 2 of the luminaire 101 coming into contact with the fixture 102.

[0083] Embodiment 3 Next, an illumination device 100B according to the third embodiment will be described with reference to Fig. 17 and Fig. 18. Fig. 17 is an enlarged longitudinal sectional view showing a main part of the illumination device 100B according to the third embodiment. Note that the same components as those of the illumination device 100 described in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0084] The lighting device 100B according to the third embodiment is characterized in that, in the configuration of the lighting device 100 described in the first embodiment, the luminaire restricting device 5 is omitted, and a positioning mechanism 54 is formed on the side wall portion 302 of the fixture body portion 30 as shown in FIG. 17. The positioning mechanism 54 is configured such that a part of the side wall portion 302 is formed to protrude toward the connecting spring 32 to form a convex shape. The positioning mechanism 54 is formed by subjecting a part of the pair of side wall portions 302 to a press process such as drawing, so that the part protrudes in a direction approaching each other. The positioning mechanism 54 may be configured such that a member separate from the side wall portions 302 is attached to the opposing inner surfaces of the pair of side wall portions 302 to form a convex shape. The pair of positioning mechanisms 54 abut against the upper surface of the holding portion 14b of the connecting device 14 attached to the base portion 10 of the base 1 when the lighting device 101 is attached to the fixture 102. As a result, even if the luminaire 101 is pulled toward the storage section 305 side (Z1 direction) of the fixture body 3, the holding section 14b hits the positioning mechanism 54, and the movement is restricted. For example, as shown in FIG. 9, in this state, a gap C is provided between the protruding section 31a of the fixture end 31 and the upper surface of the cover end 21 of the luminaire 101, so that the fixture end 31 and the cover end 21 do not come into contact with each other. Therefore, the lighting device 100B can suppress abnormal noise caused by the stick-slip phenomenon that occurs when the fixture end 31 comes into contact with the cover end 21, which has a different expansion coefficient from that of the fixture end 31. In addition, the lighting device 100B according to the third embodiment does not require the manufacturing of the luminaire restriction device 5 or the attachment of the luminaire restriction device 5 to the fixture body 3, as compared with the lighting device 100 according to the first embodiment, and therefore the assemblability of the fixture 102 can be improved and the weight can be reduced.

[0085] The connector 14 is fixed to the metal base 1 of the lighting fixture 101. The difference in expansion coefficient between the metal fixture body 30 and the base 1 is small, and the difference in the amount of expansion and contraction along the longitudinal direction (X direction) is also small. Therefore, the risk of abnormal noise occurring when the positioning mechanism 54 comes into contact with the holding part 14b of the connector 14 that follows the base 1 is extremely small compared to when the overhanging part 31a of the fixture end 31 comes into contact with the resin cover end 21.

[0086] The positioning mechanism 54 is configured to provide a gap C so that the overhang 31a does not come into contact with the upper surface of the cover end 21. The size and shape of the positioning mechanism 54 and the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 are determined taking into consideration manufacturing variations of parts, assembly variations, and installation variations of the lighting fixture 101 during construction. The positioning mechanism 54 is preferably formed so that the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 is approximately 0.3 mm or more.

[0087] In addition, in the lighting device 100B, when the movement of the lamp 101 is restricted by the positioning mechanism 54, the fixture end 31 and the cover end 21 may be in slight contact with each other as long as they are not pressing against each other, thereby reducing the risk of foreign matter entering.

[0088] FIG. 18 is a cross-sectional view showing an enlarged view of a main part of a modification of the lighting device 100B according to the third embodiment. The positioning mechanism 55 shown in FIG. 18 is configured such that a part of the side wall portion 302 is formed to protrude toward the connecting spring 32 to form a convex shape. The positioning mechanism 55 is formed by applying a press process such as drawing or rolling to a part of the pair of side wall portions 302 so that the part protrudes toward each other. The positioning mechanism 55 may be formed from one end to the other end along the longitudinal direction (X direction) of the fixture body 3, or may be formed in an arbitrary range. This positioning mechanism 55 also abuts against the upper surface of the holding portion 14b of the connecting device 14 attached to the lighting fixture 101 when the lighting fixture 101 is attached to the fixture 102. As a result, even if the lighting fixture 101 is drawn toward the storage portion 305 side (Z1 direction) of the fixture body 3, the holding portion 14b abuts against the positioning mechanism 55, and the movement is restricted. Furthermore, in the lighting device 100B shown in FIG. 18, the rigidity of the fixture body 3 can be improved by the positioning mechanism 55, which can contribute to preventing the fixture body 3 from being deformed.

[0089] Embodiment 4 Next, an illumination device 100C according to the fourth embodiment will be described with reference to Fig. 19 and Fig. 20. Fig. 19 is an enlarged longitudinal sectional view showing a main part of the illumination device 100C according to the fourth embodiment. Note that the same components as those of the illumination device 100 described in the first embodiment and the illumination device 100A described in the second embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0090] The lighting device 100C according to the fourth embodiment is characterized in that, in the configuration of the lighting device 100A described in the second embodiment, the positioning mechanism 63 is not provided in the obturator 6, but the positioning mechanism 56 is formed in the top wall portion 301. As shown in FIG. 19, the positioning mechanism 56 is formed in a convex shape by performing press processing such as cutting and raising on a part of the top wall portion 301 so as to protrude from the top wall portion 301 toward the wire protector 15. The positioning mechanism 56 may be formed in a convex shape protruding toward the wire protector 15 by attaching a member separate from the top wall portion 301 to the top wall portion 301. When the lighting device 101 is attached to the fixture 102, the tip of the positioning mechanism 56 abuts on the upper surface of the wire protector 15 attached to the lighting device 101. As a result, even if the lighting fixture 101 is pulled toward the storage section 305 of the fixture body 3 (in the Z1 direction), the movement is restricted by the wire protector 15 hitting the positioning mechanism 56. In this state, a gap C is provided between the protruding portion 31a of the fixture end 31 and the upper surface of the cover end 21 of the lighting fixture 101, so that the fixture end 31 and the cover end 21 do not come into contact with each other. Therefore, the lighting device 100C can suppress abnormal noise caused by the stick-slip phenomenon that occurs when the fixture end 31 comes into contact with the cover end 21, which has a different expansion coefficient from that of the fixture end 31.

[0091] The wire protector 15 is fixed to the metal base 1 of the lighting fixture 101. The difference in expansion coefficient between the metal fixture body 30 and the base 1 is small, and the difference in the amount of expansion and contraction along the longitudinal direction (X direction) is also small. Therefore, the risk of abnormal noise occurring when the positioning mechanism 56 comes into contact with the wire protector 15 that follows the base 1 is extremely small compared to when the overhanging portion 31a of the fixture end 31 comes into contact with the resin cover end 21.

[0092] Furthermore, the positioning mechanism 56 is not limited to a configuration in which it abuts against the wire protector 15. The positioning mechanism 56 may be configured such that the tip abuts against the base 10 of the base 1, for example, or may be configured such that the tip abuts against another component of the lamp 101.

[0093] The positioning mechanism 56 is configured to provide a gap C so that the overhang 31a does not come into contact with the upper surface of the cover end 21. The size and shape of the positioning mechanism 56 and the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 are determined taking into consideration manufacturing variations of parts, assembly variations, and installation variations of the lighting fixture 101 during construction. The positioning mechanism 56 is preferably formed so that the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 is approximately 0.3 mm or more.

[0094] In addition, in the lighting device 100C, as long as the movement of the lamp 101 is restricted by the positioning mechanism 56 and the fixture end 31 and the cover end 21 are not pressing against each other, the fixture end 31 and the cover end 21 may be in slight contact with each other, thereby reducing the risk of foreign matter entering.

[0095] FIG. 20 is a vertical cross-sectional view showing an enlarged view of a main part of a modification of the lighting device 100C according to the fourth embodiment. The positioning mechanism 57 shown in FIG. 20 is configured such that the overhanging portion 31a of the fixture end 31 is extended toward the inside of the storage portion 305, and is formed on a part of the extended overhanging portion 31a. The positioning mechanism 57 is formed as a convex shape protruding from a part of the extended overhanging portion 31a toward the upper surface of the base portion 10 of the pedestal 1. The positioning mechanism 57 may be formed as a convex shape by attaching a member separate from the overhanging portion 31a to the lower surface of the extended overhanging portion 31a. The tip of the positioning mechanism 57 abuts on the upper surface of the base portion 10 of the pedestal 1 when the lighting device 101 is attached to the fixture 102. As a result, even if the lighting device 101 is pulled toward the storage portion 305 side (Z1 direction) of the fixture body 3, the base portion 10 abuts on the positioning mechanism 56, thereby restricting the movement. The positioning mechanism 57 is not limited to a configuration in which it abuts against the base 10. The positioning mechanism 57 may have a configuration in which the tip portion abuts against another component of the lighting fixture 101.

[0096] Embodiment 5. Next, an illumination device 100D according to the fifth embodiment will be described with reference to Figs. 21 and 22. Fig. 21 is a partial perspective view of the illumination device 100D according to the fifth embodiment, in which one end in the longitudinal direction of a luminaire 101D is enlarged. Fig. 21(a) shows a state in which the cover 2D of the luminaire 101D is removed from the base 1D. Fig. 21(b) shows a state in which the cover 2D of the luminaire 101D is attached to the base 1D. Fig. 22 is a vertical cross-sectional view of an enlarged main part of the illumination device 100D according to the fifth embodiment. Note that the same components as those of the illumination devices 100 to 100C described in the first to fourth embodiments are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0097] Unlike the above-mentioned first to fourth embodiments in which a positioning mechanism is provided in the fixture 102, the lighting device 100D according to the fifth embodiment is characterized in that a positioning mechanism 11d is provided in the luminaire 101D. The positioning mechanism 11d of the lighting device 100D according to the fifth embodiment is also disposed in the housing portion 305 when the lighting device 101D is attached to the fixture 102, and determines the position of the lighting device 101D attached to the housing portion 305 so that the portion of the cover 2D exposed from the housing portion 305 does not come into contact with the fixture 102.

[0098] 21(a), the positioning mechanism 11d is configured such that a part of the base 10 and a part of the side wall 11 are extended along the longitudinal direction (X direction) of the pedestal 1D to form a convex shape at both ends in the longitudinal direction (X direction). The positioning mechanism 11d is formed to include a bent portion formed by the end of the base 10 in the lateral direction (Y direction) of the pedestal 1D and the lower part of the side wall 11, and has a generally L-shaped cross section. Two positioning mechanisms 11d are provided at each end in the longitudinal direction (X direction) of the pedestal 1D.

[0099] Further, a groove 21d in which the positioning mechanism 11d is disposed is provided on the upper surface of the cover end 21D. As shown in FIG. 21(b), when the lamp 101D is assembled, at least a part of the positioning mechanism 11d is accommodated in the groove 21d. The base 1D in which the positioning mechanism 11d is provided and the cover end 21D in which the groove 21d is provided have different expansion coefficients. For this reason, in order to suppress abnormal noise due to the stick-slip phenomenon, it is preferable to accommodate the positioning mechanism 11d in the groove 21d so that the positioning mechanism 11d does not come into contact with the groove 21d. Furthermore, when the groove 21d and the positioning mechanism 11d come into contact with each other, it is preferable to minimize the contact area by adopting a contact structure such as line contact or point contact.

[0100] The positioning mechanism 11d may be formed separately on the base 10 and on the side wall 11. The positioning mechanism 11d may be formed on either the base 10 or the side wall 11.

[0101] As shown in FIG. 22, the positioning mechanism 11d has an upper edge abutted against the lower surface of the overhang 31a provided at the fixture end 31 when the luminaire 101D is attached to the fixture 102D. As a result, even if the luminaire 101D is pulled toward the housing 305 side (Z1 direction) of the fixture body 3, the overhang 31a abuts against the positioning mechanism 11d, and the movement is restricted. In this state, a gap C is provided between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21 of the luminaire 101D, so that the fixture end 31 and the cover end 21D do not come into contact with each other. Therefore, the lighting device 100D can suppress abnormal noise caused by the stick-slip phenomenon that occurs when the fixture end 31 comes into contact with the cover end 21D, which has a different expansion coefficient from that of the fixture end 31.

[0102] The positioning mechanism 11d is configured to provide a gap C so that the overhang 31a and the upper surface of the cover end 21D do not come into contact with each other. The size and shape of the positioning mechanism 11d and the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21D are determined taking into consideration manufacturing variations of parts, assembly variations, and installation variations of the lighting fixture 101D during construction. The positioning mechanism 11d is preferably formed so that the size of the gap C between the overhang 31a of the fixture end 31 and the upper surface of the cover end 21D is approximately 0.3 mm or more.

[0103] In addition, in the lighting device 100D, as long as the movement of the luminaire 101D is restricted by the positioning mechanism 11d and the fixture end 31 and the cover end 21D are not pressing against each other, the fixture end 31 and the cover end 21D may be in slight contact with each other, thereby reducing the risk of foreign matter entering.

[0104] In the lighting device 100D according to the fifth embodiment, the base 1D, which is a component of the luminaire 101D, is provided with a positioning mechanism 11d that abuts against the protruding portion 31a of the fixture end portion 31, which is a component of the fixture 102D. However, the present invention is not limited to this. For example, the connector 14, the wire protector 15, or the power supply unit 13, which are components of the luminaire 101D, may be provided with a positioning mechanism that abuts against a part of the component of the fixture 102D. The part of the component of the fixture 102D is, for example, the fixture main body portion 30 or the fixture end portion 31. The positioning mechanism is a member separate from each component of the luminaire 101D, which is attached to the base 1, the connector 14, the wire protector 15, or the power supply unit 13, and is formed into a convex shape that protrudes toward the housing portion 305. The positioning mechanism abuts against a part of the component of the fixture 102 when the luminaire 101D is attached to the fixture 102. As a result, even if the lighting fixture 101D is pulled toward the housing portion 305 of the fixture body 3 (in the Z1 direction), the positioning mechanism abuts against a part of the component member of the fixture 102, and the movement is restricted.

[0105] Furthermore, the positioning mechanism in the lighting device 100D may be formed by cutting out a part of the base 10 of the base 1 so as to protrude from the base 10 towards the housing portion 305, for example.

[0106] Although the lighting devices (100 to 100D) have been described above based on the embodiments, the lighting devices (100 to 100D) are not limited to the configurations of the above-mentioned embodiments. The above-mentioned configurations of the lighting devices (100 to 100D) are merely examples, and some of the components may be omitted, or other components may be included. In addition, the lighting devices (100 to 100D) have been described as being installed in a construction section 103 such as a system ceiling, but are not limited thereto. The lighting devices (100 to 100D) may be, for example, a direct-mount lighting device that is fixed to a hanging bolt or the like and directly installed on the ceiling, or a recessed lighting device that is fixed to a hanging bolt or the like and recessed into the ceiling. In short, the lighting devices (100 to 100D) include the range of design changes and application variations that are normally made by a person skilled in the art, within the scope of the technical concept thereof.

[0107] Various aspects of the present disclosure are summarized below as appendices.

[0108] (Appendix 1) A lighting device that irradiates light onto an illumination target area; and a fixture that is attached to the construction section and has a storage section in which the lighting device is mounted. The lighting device has a base, a light source unit that is installed on the base and emits light, and a cover that is attached to the base so as to cover the light source unit, and is attached to the device in a state in which a part of the cover is exposed from the housing part toward an illumination target area, A lighting device having a positioning mechanism that, when the lighting fixture is attached to the fixture, is disposed in the storage section and determines the position of the lighting fixture attached to the storage section so that the cover exposed from the storage section does not come into contact with the fixture.

[0109] (Appendix 2) The cover has a long, concave cover main body portion and cover end portions disposed on both end surfaces of the cover main body portion in a longitudinal direction, The instrument has an elongated instrument body having the storage portion, and instrument ends arranged on both end surfaces in the longitudinal direction of the instrument body, The lighting device described in Appendix 1, wherein the positioning mechanism is configured to determine the position of the lighting fixture attached to the storage section so that the cover end and the fixture end do not come into contact with each other.

[0110] (Appendix 3) The device has a lamp restricting device disposed in the housing portion, The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is a convex portion formed on a part of the lamp regulating device, and is configured to determine the position of the lamp attached to the accommodating portion by abutting against a part of a component of the lamp.

[0111] (Appendix 4) The lamp regulator is configured to have a plate-shaped regulator base and a pair of plate-shaped regulator side portions extending from the regulator base toward the lamp, the plate-shaped regulator side portions being formed in a concave shape, The lighting device according to claim 3, wherein the positioning mechanism is formed on a pair of the regulating tool sides.

[0112] (Appendix 5) The device includes an installation tool fixed to the outer surface of the storage part and attached to the construction part, and a closing tool movably attached to the inside of the storage part, The storage section has an installation tool mounting hole through which a fastener for mounting the installation tool passes, the installation tool mounting hole being formed for each of a plurality of regions to which the installation tool is to be mounted; The installation tool is fixed in at least one of the plurality of regions in which the installation tool attachment holes are formed, The blocking tool is configured to block an unused installation tool mounting hole to which the installation tool is not attached, The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is a convex portion formed on the obturator, and is configured to determine the position of the lighting fixture attached to the accommodating portion by abutting against a part of a component of the lighting fixture.

[0113] (Appendix 6) The storage section is formed in a concave shape by a plate-shaped top wall section facing the lamp and a pair of plate-shaped side wall sections protruding from both opposing end edges of the top wall section toward the lamp, The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is provided on the inner surfaces of a pair of opposing side wall portions, has a convex shape that protrudes toward the opposing inner surfaces, and is configured to determine the position of the lamp attached to the storage portion by abutting against a part of a component of the lamp.

[0114] (Appendix 7) The lighting device described in Appendix 6, wherein the positioning mechanism is configured to have a convex shape by attaching a member separate from the side wall portion to an inner surface of the side wall portion.

[0115] (Appendix 8) 7. The lighting device according to claim 6, wherein the positioning mechanism is configured such that a portion of the side wall portion protrudes to form a convex shape.

[0116] (Appendix 9) The lighting device has a connector for attaching it to the device, The lighting device according to claim 3, 4, 6, 7, or 8, wherein the positioning mechanism is configured to determine the position of the lamp attached to the storage section by abutting against the connector.

[0117] (Appendix 10) The storage section is formed in a concave shape by a plate-shaped top wall section facing the lamp and a pair of plate-shaped side wall sections protruding from both opposing end edges of the top wall section toward the lamp, The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is provided on the top wall portion, has a convex shape that protrudes toward the lamp, and is configured to determine the position of the lamp attached to the storage portion by abutting against a part of a component of the lamp.

[0118] (Appendix 11) The instrument has an elongated instrument body having the storage portion, and instrument ends arranged on both end surfaces in the longitudinal direction of the instrument body, The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is formed at the end of the fixture, has a convex shape that protrudes toward the lamp, and is configured to determine the position of the lamp attached to the storage section by abutting against a part of a component of the lamp.

[0119] (Appendix 12) The lighting device described in Appendix 1 or 2, wherein the positioning mechanism is provided on a part of a component of the lighting fixture, has a convex shape that protrudes toward the storage section of the device, and is configured to determine the position of the lighting fixture attached to the storage section by abutting against a part of a component of the device.

[0120] (Appendix 13) A fixture to which a lighting device is attached, the lighting device having a base, a light source unit that is installed on the base and emits light, and a cover that is attached to the base so as to cover the light source unit, a housing section in which the lamp is attached with a portion of the cover exposed toward an illumination target area; a positioning mechanism that is disposed in the storage portion and determines the position of the lighting fixture attached to the storage portion so as not to come into contact with the cover of the portion exposed from the storage portion. [Explanation of symbols]

[0121] 1, 1D base, 2, 2D cover, 3 fixture body, 4 installation tool, 5 luminaire regulation tool, 6 blocking tool, 10 base, 11 side wall, 11a curled part, 11d positioning mechanism, 12 light source, 12a board, 12b light-emitting element, 13 power supply, 13a luminaire side electric wire, 13b electric wire insertion hole, 14 connecting tool, 14a connecting part, 14b holding part, 14c opening, 15 electric wire protector, 16 locking spring, 20 cover body, 21, 21D cover end, 21d groove, 30 fixture body, 31 fixture end, 31a extension, 32 connecting spring, 32a connecting part, 32b fixing part, 32c connecting spring fixing tool, 32d connecting spring mounting hole, 33 terminal block, 34 Equipment side electric wire, 35 mounting hole for installation tool, 36 mounting hole for regulation tool, 37 hook, 37a hook hole, 37b hook fixing tool, 38 equipment protruding portion, 39 blocking tool insertion hole, 40 installation tool, 41 mounting tool, 42 regulation tool, 43 installation tool fixing tool, 50 regulation tool base, 50a notch, 50b base insertion hole, 51 regulation tool side, 52 regulation tool fixing tool, 53, 54, 55, 56, 57 positioning mechanism, 60 base, 61 erected portion, 62 protruding portion, 63 positioning mechanism, 63a through hole, 64 base through hole, 65, 66 base insertion hole, 100, 100A, 100B, 100C, 100D lighting device, 101, 101D Lighting fixture, 102, 102D fixture, 103 construction portion, 200 light-transmitting portion, 200a light-transmitting main portion, 200b light-transmitting side portion, 201 mounting portion, 201a support portion, 201b holding portion, 201c hook portion, 301 ceiling wall portion, 302 side wall portion, 303 connection portion, 304 inclined portion, 305 storage portion.

Claims

1. A lighting device that irradiates light onto an illumination target area; and a fixture that is attached to the construction section and has a storage section in which the lighting device is mounted. The lighting device has a base, a light source unit that is installed on the base and emits light, and a cover that is attached to the base so as to cover the light source unit, and is attached to the device in a state in which a part of the cover is exposed from the housing part toward an illumination target area, A lighting device having a positioning mechanism disposed in the storage section that determines the position of the lamp attached to the storage section so that, when the lamp is attached to the fixture, a gap is provided between the part of the cover exposed from the storage section and the fixture.

2. The cover has a long, concave cover main body portion and cover end portions disposed on both end surfaces of the cover main body portion in a longitudinal direction, The instrument has an elongated instrument body having the storage portion, and instrument ends arranged on both end surfaces in the longitudinal direction of the instrument body, The lighting device according to claim 1 , wherein the positioning mechanism is configured to determine a position of the lamp attached to the housing so that a gap is provided between the cover end and the fixture end.

3. The device has a lamp restricting device disposed in the housing portion, The lighting device according to claim 1 or 2, wherein the positioning mechanism is a convex portion formed on a part of the lamp regulating device, and is configured to determine the position of the lamp attached to the accommodating portion by abutting against a part of a component of the lamp.

4. The lamp regulator is configured to have a plate-shaped regulator base and a pair of plate-shaped regulator side portions extending from the regulator base toward the lamp, the plate-shaped regulator side portions being formed in a concave shape, The lighting device according to claim 3 , wherein the positioning mechanism is formed on a pair of the restricting tool side portions.

5. The device includes an installation tool fixed to the outer surface of the storage part and attached to the construction part, and a closing tool movably attached to the inside of the storage part, The storage section has an installation tool mounting hole through which a fastener for mounting the installation tool passes, the installation tool mounting hole being formed for each of a plurality of regions to which the installation tool is to be mounted; The installation tool is fixed in at least one of the plurality of regions in which the installation tool attachment holes are formed, The blocking tool is configured to block an unused installation tool mounting hole to which the installation tool is not attached, The lighting device according to claim 1 or 2, wherein the positioning mechanism is a convex portion formed on the obturator, and is configured to determine the position of the lamp attached to the accommodating portion by abutting against a part of a component of the lamp.

6. The storage section is formed in a concave shape by a plate-shaped top wall section facing the lamp and a pair of plate-shaped side wall sections protruding from both opposing end edges of the top wall section toward the lamp, 3. The lighting device according to claim 1 or 2, wherein the positioning mechanism is provided on the inner surfaces of a pair of opposing side wall portions, has a convex shape protruding toward the opposing inner surfaces, and is configured to determine the position of the lamp attached to the accommodating portion by abutting against a part of a component of the lamp.

7. The lighting device according to claim 6 , wherein the positioning mechanism is configured by attaching a member separate from the side wall portion to an inner surface of the side wall portion to form a convex shape.

8. The lighting device according to claim 6 , wherein the positioning mechanism is configured such that a part of the side wall portion protrudes to have a convex shape.

9. The lighting device has a connector for attaching it to the device, The lighting device according to claim 3 , wherein the positioning mechanism is configured to determine a position of the lamp attached to the housing by abutting against the connector.

10. The storage section is formed in a concave shape by a plate-shaped top wall section facing the lamp and a pair of plate-shaped side wall sections protruding from both opposing end edges of the top wall section toward the lamp, 3. The lighting device according to claim 1 or 2, wherein the positioning mechanism is provided on the top wall portion, has a convex shape protruding toward the lamp, and is configured to determine the position of the lamp attached to the storage portion by abutting against a part of a component of the lamp.

11. The instrument has an elongated instrument body having the storage portion, and instrument ends arranged on both end surfaces in the longitudinal direction of the instrument body, 3. The lighting device according to claim 1 or 2, wherein the positioning mechanism is formed at the end of the fixture, has a convex shape that protrudes toward the lamp, and is configured to determine the position of the lamp attached to the storage section by abutting against a part of a component of the lamp.

12. 3. The lighting device according to claim 1 or 2, wherein the positioning mechanism is provided on a part of a component of the lighting fixture, has a convex shape that protrudes toward the storage section of the device, and is configured to determine the position of the lighting fixture attached to the storage section by abutting against a part of a component of the device.

13. A fixture to which a lighting device is attached, the lighting device having a base, a light source unit that is installed on the base and emits light, and a cover that is attached to the base so as to cover the light source unit, a housing section in which the lamp is attached with a portion of the cover exposed toward an illumination target area; and a positioning mechanism disposed in the storage section that determines the position of the lighting fixture attached to the storage section so that a gap is provided between the cover and a portion of the cover exposed from the storage section.

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