JP7316874B2 - Luminaire mounting device and luminaire - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture mounting device and a lighting fixture, and more particularly to a structure for mounting a lighting fixture to a mounting portion such as a wire.

2. Description of the Related Art Conventionally, there has been known a luminaire mounting device for mounting a luminaire on a two-kind metal wire (raceway) using a mounting bracket. 2. Description of the Related Art A lighting fixture is installed by attaching a cover that covers built-in parts to a fixture body that is attached to a ceiling or the like (see, for example, Patent Literature 1).

The lighting fixture mounting device according to Patent Document 1 is mounted between a raceway and a lighting fixture main body suspended from the raceway. The luminaire mounting device is characterized in that it is mounted in close contact with the upper portion of the luminaire main body and is a mounting base plate having a flat upper surface. The luminaire mounting device has a flat upper surface of the mounting base plate so that dust, water, and the like do not accumulate.

JP 2014-229386 A

However, in the lighting fixture mounting device of Patent Document 1, if the suspension bolts that fix the raceway and the mounting base plate to each other are tightened too strongly, the mounting base plate will be pulled out of the virtual line connecting the suspension bolts. There is a risk that it will be bent and deformed. As a result, there is a problem that a gap is created between the mounting base plate and the lighting device, and water enters through this gap.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-described problems, and is a lighting device capable of suppressing deformation of a lighting fixture mounting device for mounting a lighting fixture to a mounting portion such as a wire and ensuring waterproofness of the lighting fixture body. An object of the present invention is to provide a fixture mounting device and a lighting fixture.

A lighting fixture mounting device according to the present invention is a lighting fixture mounting device for mounting a lighting fixture main body on a columnar mounted part, wherein the lighting fixture mounting part is positioned on the upper surface side of the lighting fixture main body and is in contact with the mounted part. wherein the device attachment portion includes an upper surface portion with which the attached portion abuts, and a reinforcing portion that suppresses deformation that occurs when attached to the attached portion , and the reinforcing portion extends from the upper surface portion. is a plurality of ribs formed so as to protrude toward the mounting portion, and the plurality of ribs extend in a direction that intersects the direction in which the mounting portion extends when viewed from a direction perpendicular to the upper surface portion. extends to

A lighting fixture according to the present invention includes the lighting fixture mounting device described above and the lighting fixture main body attached to the fixture mounting portion.

ADVANTAGE OF THE INVENTION According to this invention, the deformation|transformation of the attachment apparatus which attaches a lighting fixture to attachment parts, such as a wire pipe, is suppressed. Since deformation of the mounting device is suppressed, wobbling or tilting of the attached lighting fixture is suppressed, and waterproofness (water stoppage) between the mounting device and the lighting fixture main body is improved.

1 is an external perspective view of lighting fixture 100 according to Embodiment 1. FIG. 1 is an external view of lighting fixture 100 according to Embodiment 1. FIG. 1 is a cross-sectional view of lighting fixture 100 according to Embodiment 1. FIG. 1 is a cross-sectional view of lighting fixture 100 according to Embodiment 1. FIG. 1 is an exploded perspective view of lighting fixture 100 according to Embodiment 1. FIG. 5 is an enlarged view of the periphery of the stud bolt 13 of FIG. 4; FIG. 4 is an enlarged view of the periphery of an introduction portion 17 of the cable 40 of FIG. 3. FIG. It is a comparative example of the lighting fixture mounting device 10 of the lighting fixture 100 according to Embodiment 1. FIG. FIG. 11 is a top view of lighting fixture mounting device 210 of lighting fixture 200 according to Embodiment 2. FIG. FIG. 11 is a cross-sectional view of a lighting fixture mounting device 210 according to Embodiment 2; FIG. 11 is a cross-sectional view of a lighting fixture mounting device 210 according to Embodiment 2; It is a modification of the lighting equipment mounting device 210 according to the second embodiment.

Illumination devices according to embodiments of the present invention will be described in detail below with reference to the drawings. In the drawings below, the size relationship of each component may differ from the actual size. Moreover, in the following drawings, the same reference numerals denote the same or corresponding parts, and this applies throughout the specification. Furthermore, the forms of the components shown in the entire specification are merely examples, and are not limited to these descriptions.

Embodiment 1.
<Lighting equipment 100>
FIG. 1 is an external perspective view of a lighting fixture 100 according to Embodiment 1. FIG. FIG. 2 is an external view of the lighting fixture 100 according to Embodiment 1. FIG. 3 and 4 are cross-sectional views of the lighting fixture 100 according to Embodiment 1. FIG. 3 shows a cross section taken along line AA in FIG. 2A, and FIG. 4 shows a cross section taken along line BB in FIG. 2A. A lighting fixture 100 includes a lighting fixture mounting device 10 and a lighting fixture body 20 . The luminaire 100 is, for example, an emergency light. The luminaire 100 is attached to the indoor ceiling or the like by fixing the luminaire mounting device 10 to the mounting portion 90 . The attached portion 90 has a prism shape and is, for example, a double metal wire. A double metal wire is also called a raceway. It should be noted that the attached portion 90 is not limited to the two-kind metal wire.

<Lighting device main body 20>
The lighting fixture main body 20 includes a housing cover 60 . The housing cover 60 constitutes an exterior portion of the lighting fixture main body 20 . A light source unit 50 , a lighting device 70 , and a power terminal block 71 are installed inside the housing cover 60 . The housing cover 60 has a bottomed cylindrical shape with an opening on the upper side in FIG. A hole 61 is provided in the central portion of a bottom portion 62 of a housing cover 60 having a cylindrical shape with a bottom. A hole 61 of the housing cover 60 is an exit opening through which light rays are emitted from the light source unit 50 . An optical control member 51 provided in the light source unit 50 is arranged to protrude from the hole 61 . The optical control member 51 controls the range irradiated with light rays emitted from the light source of the light source unit 50, and is, for example, a lens.

The lighting fixture body 20 includes a body packing 30 . The opening of the housing cover 60 having a cylindrical shape with a bottom is covered with the body packing 30 . The body packing 30 is composed of a base portion 34 and a packing portion 35 . The base portion 34 is formed in a cylindrical shape with a bottom, and is made of a material having higher rigidity than the packing portion 35 . The packing part 35 is made of an elastic material, and covers the bottom part 34a and the side part 34b of the bottomed cylindrical base part 34 . Note that the bottom portion 34 a of the base portion 34 supports the upper portion 31 of the packing portion 35 when the lighting device body 20 is attached to the attached portion 90 . A side portion 34 b of the base portion 34 supports a side portion 36 of the main body packing 30 . The base portion 34 and the packing portion 35 are integrated by means of adhesion, for example.

The main body packing 30 is fitted into an opening of a bottomed tubular housing cover 60 and integrated with the housing cover 60 . A groove portion 37 is formed in a side portion 36 of the packing portion 35 of the main body packing 30 . The groove portion 37 is formed over the entire circumference of the cylindrical side portion 36 . The opening edge portion 63 of the housing cover 60 is fitted into the groove portion 37 formed in the packing portion 35 of the main body packing 30 . The inner surface of the groove portion 37 of the packing portion 35 is in close contact with the outer peripheral surface and the inner peripheral surface of the opening edge portion 63 of the housing cover 60, thereby sealing the inside of the housing cover 60 from water. .

<Lighting Fixture Mounting Device 10>
FIG. 5 is an exploded perspective view of the lighting fixture 100 according to Embodiment 1. FIG. The lighting fixture mounting device 10 connects the mounted part 90 and the lighting fixture main body 20 . The luminaire mounting device 10 includes a luminaire mounting portion 11 that covers the upper surface of the luminaire main body 20 . The upper surface of the lighting fixture main body 20 is parallel to the direction in which the attached portion 90 extends. A stud bolt 13 to which a mounting bracket 12 is fixed is erected on the upper surface of the device mounting portion 11 . The device mounting portion 11 and the mounting bracket 12 are combined so as to surround the mounted portion 90 . That is, the lighting fixture mounting device 10 is fixed to the mounted part 90 by sandwiching the mounted part 90 between the fixture mounting part 11 and the mounting bracket 12 . In Embodiment 1, mounting bracket 12 is fastened and fixed by stud bolt 13 and nut 14 .

The fixture mounting portion 11 includes an upper face part 18 formed in a flat plate shape, and a reinforcing part 19 provided so as to rise from the peripheral edge of the upper face part 18 toward the lighting fixture main body 20 side. As shown in FIG. 4, the mounting bracket 12 includes a support portion 12a that abuts on the upper surface of the mounting portion 90, and extends from both ends of the support portion 12a along side surfaces 93 of the mounting portion 90 toward the instrument mounting portion 11 side. and a fixing portion 12c extending from the lower end of the connecting portion 12b in a direction crossing the connecting portion 12b. A lower end portion 91 of the attached portion 90 abuts on the upper surface portion 18 of the appliance attaching portion 11 . The mounting bracket 12 is fitted to the mounted portion 90 from above the mounted portion 90 . The fixing portion 12 c of the mounting bracket 12 is positioned along the upper surface portion 18 of the device mounting portion 11 . A stud bolt 13 provided in the device mounting portion 11 is passed through a hole 12d formed in the fixing portion 12c. A nut 14 is screwed onto the stud bolt 13 , and the nut 14 fastens and fixes the fixing portion 12 c to the upper surface portion 18 of the instrument mounting portion 11 .

FIG. 6 is an enlarged view of the periphery of the stud bolt 13 of FIG. FIG. 6 is an enlarged view of the C part of FIG. 4. FIG. As shown in FIGS. 4 and 6, the fixing portion 12c of the mounting bracket 12 is arranged along the upper surface portion 18 of the instrument mounting portion 11. As shown in FIGS. The fixing portion 12c is in contact with the nut 14 from above. The mounting bracket 12 is fixed to the instrument mounting portion 11 by screwing the nut 14 onto the stud bolt 13 and tightening it. As shown in FIG. 4, the distance from the bottom surface of the support portion 12a of the mounting bracket 12 to the bottom surface of the fixing portion 12c is smaller than the distance from the top surface 92 of the attached portion 90 to the bottom end portion 91 thereof. Therefore, in a state in which the mounted portion 90 is sandwiched between the mounting bracket 12 and the device mounting portion 11, as shown in FIGS. The lower end portion 91 of the attached portion 90 contacts the upper surface portion 18 of the instrument attaching portion 11 without contacting the upper surface portion 18 of the instrument mounting portion 11 . By tightening the nut 14 to a predetermined tightening torque, the lighting fixture mounting device 10 is fixed to the mounted portion 90 .

The fixture mounting portion 11 of the lighting fixture mounting device 10 according to Embodiment 1 includes a reinforcing section 19 which is a raised portion formed to rise from the entire outer peripheral edge of the upper surface portion 18 toward the lighting fixture main body 20 side. In other words, the instrument mounting portion 11 has a bottomed cylindrical shape with a low cylindrical portion. Therefore, the instrument mounting portion 11 has high rigidity and is difficult to deform in the vertical direction of the upper surface portion 18 . On the other hand, since the portion from the connecting portion 12b to the fixing portion 12c of the mounting bracket 12 is formed by bending a sheet metal into an L shape, it is more likely to deform in the vertical direction of the upper surface portion 18 than the device mounting portion 11. . Therefore, as shown in FIG. 6B, depending on the tightening torque of the nut 14, the fixing portion 12c of the mounting bracket 12 is deformed so as to follow the upper surface portion 18 of the device mounting portion 11. As shown in FIG. When the nut 14 is tightened, the mounting bracket 12 deforms more than the device mounting portion 11, and the device mounting portion 11 deforms less. Therefore, the body packing 30 and the device mounting portion 11 are kept in contact with each other. be. Therefore, even when the lighting device mounting device 10 is fixed to the mounting part 90, the gap between the lighting device mounting device 10 and the main body packing 30 is suppressed, and the waterproof property inside the lighting device 100 can be maintained.

Also, the mounting bracket 12 deforms to follow the mounted portion 90 and the device mounting portion 11 . Therefore, the lighting fixture mounting device 10 does not cause the lighting fixture 100 to rattle or be tilted when attached to the mounting portion 90 .

FIG. 7 is an enlarged view of the periphery of the introduction portion 17 of the cable 40 of FIG. FIG. 7 is an enlarged view of part D in FIG. The cable 40 is drawn into the interior of the lighting fixture body 20 through an introduction section 17 which is a hole provided in the upper surface portion 18 of the fixture mounting section 11 . In the cable 40 , the electric wire 43 inside the coating 44 is pulled out from the end of the coating 44 inside the lighting device main body 20 . The electric wire 43 is connected to an internal lighting device 70 or a power terminal block 71 . The cable 40 has a bushing 42 attached to the end of the sheath 44 . Binding bands 41a and 41b are fixed to both sides of the bush 42 in the direction in which the cable 40 extends. Thereby, the bush 42 is configured not to move on the cable 40 .

The bush 42 has an insertion hole 45 formed in its central portion, and the cable 40 is passed through the insertion hole. That is, the bush 42 has a cylindrical shape. An end portion 42 a of the bush 42 on the side of the lighting device main body 20 is inserted into the lighting device main body 20 side from the introduction portion 17 provided on the upper surface portion 18 of the device mounting portion 11 . An end portion 42a of the bush 42 is formed with a locking portion 42c projecting outward. The end portion 42a of the bush 42 is not easily pulled off because the engaging portion 42c is caught on the surface of the fixture mounting portion 11 on the side of the lighting fixture main body 20. The space of is sealed.

A lip portion 42d protruding outward is also formed on the end portion 42b of the bush 42 on the far side from the lighting fixture main body 20. As shown in FIG. The lip portion 42 d is formed around the entire circumference of the bush 42 and obliquely extends toward the upper surface portion 18 side of the instrument mounting portion 11 . In a state where the end of the bush 42 on the side of the lighting device main body 20 is inserted into the lighting device main body 20 side from the introduction portion 17 , the tip of the lip portion 42 d contacts the peripheral surface of the introduction portion 17 . Bush 42 is made of an elastic material. The tip of the lip portion 42d abuts on the instrument mounting portion 11 while the lip portion 42d is bent. Therefore, the tip of the lip portion 42 d is pressed against the instrument mounting portion 11 by the elastic force of the deformation of the bush 42 , thereby sealing the periphery of the introduction portion 17 . With the above configuration, the electric wire from the outside can be pulled into the lighting fixture main body 20 from the upper surface portion 18 of the lighting fixture mounting portion 11, and the waterproofness of the lighting fixture 100 can be ensured.

(effect)
FIG. 8 is a comparative example of the lighting fixture mounting device 10 of the lighting fixture 100 according to the first embodiment. The lighting equipment mounting devices 110a and 110b according to the comparative example have the lighting equipment main body 20 mounted thereunder, but are omitted in FIG. A lighting fixture mounting device 110a shown in FIG. 8(a) uses the same mounting bracket 12 as the lighting fixture mounting device 10 according to the first embodiment. However, the lighting fixture mounting device 110a differs from the fixture mounting section 11 according to the first embodiment in the configuration of the fixture mounting section 111a. The instrument mounting portion 111a according to the comparative example is formed in a flat plate shape and does not have the reinforcing portion 19 on the peripheral edge portion. Therefore, when the nut 14 screwed to the stud bolt 13 is tightened, the portion where the instrument mounting portion 111a and the lower end portion 91 of the mounted portion 90 come into contact is held by the mounted portion 90, and the stud bolt The portion where 13 is fixed is pulled toward the mounting bracket 12 side. As a result, the device attachment portion 111 a is deformed in a direction in which the peripheral portion is separated from the main packing 30 . Seal portions 32 and 33 protruding toward the instrument mounting portions 11, 111a, and 111b are provided on the peripheral portion of the main body packing 30, and if deformation is suppressed like the instrument mounting portion 11, the upper surface portion 18 , and the seal portions 32 and 33 are brought into contact with each other to seal the interior of the lighting fixture body 20 . However, if the fixture mounting portion 111a shown in FIG. 8(a) has a flat plate shape, the fixture mounting portion 111a is deformed with the lower end portion 91 of the mounting portion 90 as a fulcrum, and the inside of the lighting fixture main body 20 is waterproofed. cannot maintain sexuality.

8(b), the connection plate 116 is hooked inside the attached portion 90, and the fixture attachment portion 111b is moved toward the connection plate 116 by the stud bolt 113 and the nut 114. It is provided with a structure that is fastened and fixed to the attached portion 90 so as to be retracted. In this case, if the tightening torque of the nut 114 is increased, the lower end portion 91 of the attached portion 90 located across the stud bolt 113 will move the device attachment portion 111b around the portion where the nut 114 is in contact with both ends. is bent so as to approach the main body packing 30 side. Since the instrument mounting portion 111b is in contact with the lower end portion 91 of the linearly extending mounting portion 90, the mounting portion 90 is symmetrically deformed about the center L into a V-shape. As a result, a gap is generated between the fixture mounting portion 111b and the main body packing 30, and the lighting fixture mounting device 110b cannot maintain waterproofness.

On the other hand, in the luminaire mounting device 10 of the luminaire 100 according to Embodiment 1, the luminaire mounting portion 11 is formed so as to stand up in a direction intersecting the upper surface portion 18 with which the mounted portion 90 abuts. and a reinforcing portion 19 that is formed. The reinforcing portion 19 intersects the attached portion 90 when viewed from the direction perpendicular to the upper surface portion 18 . Thereby, the rigidity of the device mounting portion 11 is high, and the shape of the device mounting portion 11 is maintained even when it is fixed to the mounted portion 90 . Further, even when the fixture mounting portion 11 is brought into contact with the mounted portion 90 and fixed by using the mounting bracket 12, when the fixing portion 12c of the mounting bracket 12 is attached to the fixture mounting portion 11 with the fixing member, The amount of deformation due to tightening of the fixing member is larger than that of the device mounting portion 11 . As a result, since the mounting bracket 12 is fixed to the fixture mounting portion 11 while being deformed, the fixing member does not affect the contact between the fixture mounting portion 11 and the main body packing 30, and the lighting fixture mounting device 10 can be mounted. It is fixed to the part 90 . Note that the fixing member corresponds to the stud bolt 13 and the nut 14 in the first embodiment. However, the fixing member is not limited to this.

Embodiment 2.
The lighting fixture mounting device 210 of the lighting fixture 200 according to Embodiment 2 will be described. The lighting fixture mounting device 210 is obtained by changing the reinforcing portion 19 of the lighting fixture mounting device 10 according to the first embodiment. Components having the same functions and actions as those of the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.

FIG. 9 is a top view of lighting fixture mounting device 210 of lighting fixture 200 according to the second embodiment. Although FIG. 9 shows only a top view of lighting fixture 200 , lighting fixture 200 includes body packing 30 and lighting fixture body 20 in the same manner as lighting fixture 100 .

The lighting equipment mounting device 210 uses the mounting bracket 12 in the same manner as the lighting equipment mounting device 10 according to the first embodiment, and connects and fixes the mounted portion 90 and the equipment mounting portion 211 . The device attachment portion 211 according to Embodiment 2 is provided with two ribs 219 protruding from the upper surface portion 218 toward the attached portion 90 . The rib 219 is provided so as to linearly extend in a direction perpendicular to the direction in which the attached portion 90 extends. The rib 219 is installed in a range from one peripheral edge of the upper surface portion 218 to the other peripheral edge, and is installed so as to cross the upper surface portion 218 .

The two ribs 219 are arranged parallel to each other with a predetermined interval. The fixing portion 12c of the mounting bracket 12 is arranged between the two ribs 219 . Therefore, the distance between at least two ribs 219 is greater than the width of the fixing portion 12c of the mounting bracket 12. As shown in FIG.

10 and 11 are cross-sectional views of a lighting fixture mounting device 210 according to Embodiment 2. FIG. FIG. 10 shows a cross section taken along line EE of FIG. FIG. 11 shows a cross section taken along line FF in FIG. A lower end portion 91 of the attached portion 90 is positioned so as to intersect a rib 219 provided on the instrument attaching portion 211 and abuts on the rib 219 . As shown in FIG. 9 , the mounting bracket 12 is attached from above the attached portion 90 . Before the nut 14 is tightened, the lower surface of the fixing portion 12c of the mounting bracket 12 is not in contact with the upper surface portion 218 of the instrument mounting portion 211. As shown in FIG. On the other hand, the lower end portion 91 of the attached portion 90 is in contact with the rib 219 of the appliance attaching portion 211 . The luminaire mounting device 210 is fixed to the mounted portion 90 by tightening the nut 14 of the mounting bracket 12 to a predetermined tightening torque.

The reinforcing portion of the lighting fixture mounting device 210 corresponds to the rib 219 formed to protrude from the upper surface portion 218 toward the mounted portion 90 side. The rib 219 extends in a direction that intersects the direction in which the attached portion 90 extends when viewed from the direction perpendicular to the upper surface portion 218 . With this configuration, the device mounting portion 211 abuts against the lower end portion 91 of the mounted portion 90 , and even when the mounting bracket 12 is fastened and fixed by the stud bolt 13 and the nut 14 , deformation is suppressed, and the main body packing 30 The state of contact with does not change. As a result, even when the lighting fixture 200 is attached to the mounting portion 90 , the interior of the lighting fixture main body 20 is kept waterproof.

(Modification of Embodiment 2)
FIG. 12 shows a modification of the lighting fixture mounting device 210 according to the second embodiment. The rib 219 of the lighting fixture mounting device 210 may be configured such that when it comes into contact with the lower end portion 91 of the attached portion 90 , the contacted portion deforms. With this configuration, when the tool attachment part 211 is attached to the attached part 90, the ribs 219 are only partially deformed, and the entire tool attachment part 211 is not deformed. The contact state with 30 does not change.

In Embodiment 2, the number of ribs 219 provided in fixture mounting portion 211 of lighting fixture mounting device 210 was two, but more ribs 219 may be provided. In addition, although the ribs 219 are arranged to extend in a direction orthogonal to the extension direction of the attached portion 90 , if they extend in a direction intersecting the extension direction of the attached portion 90 , they are not perpendicular. may intersect with the attached portion 90 at different angles.

In Embodiments 1 and 2, the lighting fixture mounting devices 10 and 210 are fixed to the mounted portion 90 using the mounting brackets 12, but other types of brackets may be used. For example, the connection plate 116 shown in FIG. 8(b) may be used to connect the attached portion 90 and the instrument attachment portion 11 or 211. FIG. Even when the connecting plate 116 is used, the reinforcing portion 19 and the ribs 219 cross the extending direction of the attached portion 90 when viewed from the direction perpendicular to the upper surface portion 218 . Accordingly, deformation of the fixture mounting portions 11 and 211 is suppressed, and the contact state of the main body packing 30 does not change, so that waterproofness inside the lighting fixture main body 20 is ensured.

REFERENCE SIGNS LIST 10 luminaire mounting device 11 fixture mounting portion 12 mounting bracket 12a support portion 12b connection portion 12c fixing portion 12d hole 13 stud bolt 14 nut 17 introduction portion 18 upper surface portion 19 reinforcement portion 20 Luminaire main body 30 Main body packing 31 Upper part 32 Seal part 34 Base part 34a Bottom part 34b Side part 35 Packing part 36 Side part 37 Groove part 40 Cable 41a Binding band 42 Bush 42a End , 42b end portion, 42c locking portion, 42d lip portion, 43 electric wire, 44 coating, 45 insertion hole, 50 light source unit, 51 optical control member, 60 housing cover, 61 hole, 62 bottom portion, 63 opening edge portion, 70 lighting device 71 power supply terminal block 90 mounted portion 91 lower end portion 92 upper surface 93 side surface 100 lighting fixture 110a lighting fixture mounting device 110b lighting fixture mounting device 111a fixture mounting section 111b fixture mounting section 113 Stud bolt, 114 nut, 116 connection plate, 200 luminaire, 210 luminaire mounting device, 211 luminaire mounting portion, 218 upper surface portion, 219 rib, L center.

Claims (9)

A lighting fixture mounting device for mounting a lighting fixture body on a columnar mounted part,
A fixture mounting portion located on the upper surface side of the lighting fixture body and in contact with the mounted portion,
The instrument mounting portion is
an upper surface portion with which the attached portion abuts;
a reinforcing portion that suppresses deformation that occurs when attached to the attached portion ,
The reinforcing part is
a plurality of ribs formed to protrude from the upper surface portion toward the attached portion,
The plurality of ribs are
A lighting fixture mounting device that extends in a direction that intersects a direction in which the mounted portion extends when viewed from a direction perpendicular to the upper surface portion . The reinforcing part is
2. The lighting fixture mounting device according to claim 1, which is formed so as to rise in a direction intersecting with the upper surface portion. The reinforcing part is
The lighting fixture mounting device according to claim 1 or 2, wherein the mounting device intersects with the extending direction of the mounted portion when viewed from a direction perpendicular to the upper surface portion. The reinforcing part is
The lighting fixture mounting device according to any one of claims 1 to 3, further comprising a rising portion formed to rise from the outer peripheral edge of the lighting fixture mounting portion on the side where the lighting fixture main body is located. The reinforcing part is
including a rib formed to protrude toward the attached portion from the upper surface portion;
The rib is
The lighting fixture mounting device according to any one of claims 1 to 4, which extends in a direction crossing a direction in which the mounted portion extends when viewed from a direction perpendicular to the upper surface portion. further comprising a mounting bracket that connects the device mounting portion and the mounted portion;
The mounting bracket is
a support portion that abuts on the upper surface of the attached portion;
two connecting portions extending from both ends of the supporting portion along side surfaces of the attached portion;
a fixing portion extending from the lower end of the connection portion in a direction intersecting the connection portion;
The fixed part is
6. The luminaire mounting device according to claim 1, wherein when the luminaire mounting portion is mounted with the fixing member, a deformation amount due to tightening of the fixing member is larger than that of the luminaire mounting portion. The lighting fixture mounting device according to any one of claims 1 to 6;
and the lighting fixture main body attached to the fixture mounting portion. The lighting fixture body includes:
a housing cover;
8. The lighting fixture according to claim 7, further comprising a body packing sandwiched between the fixture mounting portion and the housing cover. The plurality of ribs are
A luminaire mounting device according to any one of the preceding claims, arranged parallel to each other and spaced apart.

Images