JPH07147108A - Installation structure of luminaire - Google Patents

Abstract

PURPOSE:To directly attach a luminaire to the ceiling face without changing the position of a hole to lead out an electric power cable in the ceiling nor damaging the ceiling face. CONSTITUTION:An adaptor 4 which has U-shape cross section and has a biting preventing part 3 formed in an open part 2 is attached to the upper face of a luminaire 1 in the way the open part 2 faces upward. An electric power cable 11 drawn out of the ceiling face 5 is led to the luminaire 1 through the adaptor 4 and the holes 12 formed in the adaptor 4 and the luminaire 1. As a result, even if the hole for drawing out the electric power cable 11 in the ceiling face 5 and the hole 12 of the luminaire for leading in the electric power cable 11 do not coincide with each other, the position of the hole in the ceiling face 5 to draw out the electric power cable 11 does not need to be changed. While the biting preventing part 3 of the adaptor 4 being brought into contact with the ceiling face 5, the adaptor 4 is fixed in the ceiling face 5 by a fastening tool 6. The damage of the ceiling face 5 is prevented by the biting preventing part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for mounting a lighting fixture.

[0002]

2. Description of the Related Art When replacing an existing luminaire directly attached to a ceiling with a new luminaire, if the positions of the power supply lead-in holes of the previous luminaire and the new luminaire are different,
It is necessary to change the position of the power line coming out of the ceiling. Conventionally, it is difficult to change the position of the power supply line when the ceiling is made of concrete, and even in a general ceiling, it is troublesome to re-hole the power supply line and pull out the power supply line.

[0003]

By the way, there is conventionally known an adapter 4'dedicated to the pipe suspension as shown in FIG. 9, which is provided with a mounting hole 12 'dedicated to the pipe suspension. Attach the lower end of the pipe 15 suspended from the ceiling using the mounting hole 12 'dedicated to suspension,
An adapter 4'having a U-shaped cross section was attached to the lighting fixture 1 by a fixture 6 so that the opening 2'faced downward.
In this way, hanging the pipe 15 with the adapter 4'for exclusive use of the pipe hanging is performed by directly connecting the pipe 1 to the lighting fixture 1.
When mounting the lower end of the pipe 5, there is an adapter 4'dedicated to suspending the pipe when there is a part in the lighting fixture 1 that obstructs the mounting.

Therefore, the present inventor, in the process of reaching the present invention,
Using the adapter 4'for exclusive use of the pipe hanging, the adapter 4'is turned upside down and attached to the upper surface of the luminaire 1, and the adapter 4'is attached to the luminaire 1 to attach the adapter 4'and the luminaire 1 to the inside of the luminaire 1. A hole for attaching a direct mounting bolt is formed in a position where it does not interfere with the parts, the opening edge of the adapter 4'having a U-shaped cross section is applied to the ceiling surface, and the power supply line derived from the ceiling surface is connected to the adapter 4 Through the inside of the adapter 4'and through the holes of the adapter 4'and the fixture 1 into the fixture 1, and with the opening edge of the adapter 4'abutting the ceiling surface, the adapter is secured to the fixture on the ceiling surface 4 ' Thought to do.

However, in this case, there is a difference in shape between the mounting hole 12 'for hanging the pipe and the mounting hole for mounting it directly on the ceiling surface by a bolt or the like.
It cannot be installed simply by turning it upside down.
It has been found that there is a problem that even if the device is mounted upside down, the opening edge of the adapter 4'having a U-shaped cross section cuts into the ceiling surface and damages the ceiling surface.

Further, in the prior art, there is a problem that when the adapter is attached to the upper surface of the lighting fixture, it is likely to be displaced due to displacement within the hole when attaching with a screw or the like. The present invention is invented in view of the above points, and the purpose thereof is that even if the positions of the holes for introducing the power line between the existing lighting equipment and the new lighting equipment are different, An object of the present invention is to provide a mounting structure of a lighting fixture that can directly mount the lighting fixture to the ceiling surface without changing the position of the lead-out hole of the power line on the ceiling side and without damaging the ceiling surface.

[0007]

In the mounting structure for a lighting fixture according to the present invention, an opening 4 is provided with an adapter 4 having a U-shaped cross section, in which an opening 2 is provided with a bite prevention portion 3 on the upper surface of the lighting fixture 1. The power supply line 11 installed so as to face the ceiling surface 5 is introduced through the adapter 4 into the lighting device 1 through the adapter 4 and the hole 12 of the lighting device 1, and the bite prevention portion 3 of the adapter 4 is applied to the ceiling surface 5. It is characterized in that the adapter 4 is fixed to the ceiling surface 5 with a fixing tool 6 in a contact state.

Further, a washer 8 is abutted from the lower surface side around the lower surface side of a mounting hole 7 provided in the upper surface portion of the lighting fixture 1, and a protrusion 9 protruding from the upper surface portion of the washer 8 is placed in the mounting hole 7. It is also preferable that the projection 9 is located at the edge of the mounting hole 7 while being inserted, and the adapter 4 is fixed by the screw 10 inserted into the washer 8.

[0009]

According to the present invention having the above-described structure, however, the power supply is installed on the upper surface of the lighting fixture 1 so that the adapter 4 having a U-shaped cross section is attached so that the opening 2 faces upward and is pulled out from the ceiling surface 5. Pass wire 11 through adapter 4
And the fixture 4 is fixed to the ceiling surface 5 with the fixture 6 while being introduced into the lighting fixture 1 through the hole 12 of the lighting fixture 1 and the bite prevention portion 3 of the adapter 4 is in contact with the ceiling surface 5. Even if the positions of the holes 12 for introducing the power supply line 11 between the lighting fixture of FIG. 1 and the new lighting fixture 1 are different, the positions of the holes for leading out the power supply line 11 of the ceiling surface 5 are opened upward. The power line 11 can be inserted into the adapter 4 from the opening 2 of the adapter 4 and introduced into the hole 12 for introducing the power line 11 of the new lighting fixture 1. In this case, the adapter 4 with the opening 2 facing upward is attached to the ceiling surface 5 by abutting against the ceiling surface 5. However, the bite prevention portion 3 is provided in the opening 2 opened upward. As a result, there is an adapter 4 on the ceiling surface 5.
This will prevent the edge of the opening 2 from biting into.

Further, a washer 8 is abutted from the lower surface side around the lower surface side of the mounting hole 7 provided in the upper surface portion of the lighting fixture 1, and a projection 9 projecting from the upper surface portion of the washer 8 is provided in the mounting hole 7. In the case where the projection 9 is positioned at the edge of the mounting hole 7 while being inserted and the adapter 4 is fixed by the screw 10 inserted into the washer 8, the projection 9 prevents the positional deviation between the lighting fixture 1 and the adapter 4. As a result, the adapter 4 can be accurately attached to the upper surface of the lighting fixture 1.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. Reference numeral 1 in the figure is a lighting fixture, and an adapter 4 is attached to the upper surface portion thereof. The adapter 4 has a U-shaped cross section, and is attached to the upper surface of the lighting fixture 1 with screws 10, nuts 31, etc. so that the opening 2 faces upward. This adapter 4 is provided with holes 30 dedicated for direct ceiling mounting at both ends, and a hole dedicated for direct ceiling mounting is provided on the upper surface of the lighting fixture 1 so as to communicate with the holes 30. The adapter 4 is further provided with a plurality of mounting holes 12 'for hanging pipes, and in the embodiment shown in the figure, a total of four mounting holes 12' for hanging pipes are provided. Then, at least one of the plurality of mounting holes 12 'dedicated to suspending the pipe also serves as the hole 12 for introducing the power supply line 11.
The hole 12 communicates with a hole for introducing the power line 11 provided on the upper surface of the lighting fixture 1. A bite prevention portion 3 is provided at the opening edge portion of the opening portion 2 of the adapter 4.
As the bite prevention portion 3, for example, as shown in FIG. 4A, the edge portion of the opening 2 is bent inward to form a flange portion 16 and the bite prevention portion 3 is used, or as shown in FIG. As shown in b), the rubber packing 17 is attached to the edge of the opening 2 to form the bite prevention portion 3, or a bent portion in which the edge of the opening 2 is bent in a round shape as shown in FIG. 4C. 18 is provided as the bite prevention portion 3, or as shown in FIG. 4D, the edge portion of the opening 2 is bent outward to form a flange portion 19 which is used as the bite prevention portion 3. Various things are conceivable. Further, the flange portion 16 and the rubber packing 1 in each of the above-described embodiments.
7, the bent portion 18, and the flange portion 19 may be provided over the entire length of the edge portion of the opening portion 2, or
It may be provided at a plurality of locations in a part of the longitudinal direction.

However, when the lighting fixture 1 is directly attached to the ceiling surface 5 with the adapter 4 mounted so that the opening 2 opens upward as described above, the power supply line pulled out from the ceiling surface 5 11 is introduced into the luminaire 1 through the adapter 4 and the hole 12 of the luminaire 1 through the adapter 4, and the bite prevention portion 3 of the adapter 4 is suspended from the ceiling surface 5 while being in contact with the ceiling surface 5. A fixture 6 such as a bolt is inserted into a hole 30 dedicated to the ceiling direct attachment provided in the adapter 4 and the lighting fixture 1, and is fixed with a nut 31 so that the fixture 6 is directly attached to the ceiling surface 5. The drawings in the case of direct attachment are shown in FIGS. 1 to 3. In this case, the bite-preventing portion 3 is attached to the ceiling surface 5 when the fastener 6 is attached.
The contact with the edge of the adapter 4 prevents the edge edge of the opening of the adapter 4 from biting into the ceiling surface 5 and prevents damage to the ceiling surface 5. Even if the positions of the holes 12 for introducing the power supply line 11 between the existing lighting fixture and the new lighting fixture 1 are different, the power supply line 11 is introduced into the adapter 4 from an arbitrary position of the opening 2 of the adapter 4. And the lighting fixture 1
Since it can be introduced into the luminaire 1 through the hole 12, the position of the lead-out hole of the power supply line 11 provided on the ceiling surface 5 does not need to be changed.

By the way, the adapter 4 used in the present invention has the size of the hole 12 for introducing the power supply line 11 as described above so that the lower end portion of the pipe 15 can be attached when the pipe is used for hanging the pipe. Since it also serves as a mounting hole 12 'for hanging, as shown in FIG.
The adapter 4 is turned upside down so that the opening 2 faces downward, the lower end of the pipe 15 is attached using the hole 12, and the adapter 4 is screwed onto the upper surface of the lighting fixture 1.
By mounting with 0, nut 31, etc., it is possible to support mounting of the pipe 15 suspension type. In this case, by mounting the pipe 15 using the adapter 4, even if a component such as a ballast is located at a portion corresponding to the mounting position of the pipe 15 of the lighting fixture 1, the adapter 4
The luminaire 1 can be hung from the pipe via the.

6 and 7, the lighting device 1 and the adapter 4 are shown.
An example in which the screw is attached with the screw 10 and the nut 31 is shown. A mounting hole 7 is provided in the upper surface of the luminaire 1, and a washer 8 abuts the lower surface side of the mounting hole 7 from the lower surface side. The washer 8 has a plurality of protrusions 9 projecting on the same circumference with the center of the washer 8 as a center point. The protrusions 9 closely face the edge of the mounting hole 7 of the lighting fixture 1, It is designed not to be displaced in the direction. Central hole 18 of washer 8
The screw 10 is inserted into the hole 4 of the adapter 4 and fixed by the nut 31. Here, when the adapter 4 is mounted upside down so that the opening 2 faces downward, if a washer 8 having a long protruding length is used as the washer 8 to be used, as shown in FIG. The upper part of the projection protrudes above the mounting hole 7 on the upper surface of the luminaire 1, and it is possible to reliably prevent the projection 9 from coming off the mounting hole 7 during the mounting work, thus improving workability. Figure 8
Each example of the protrusion 9 provided on the washer 8 is shown in FIG.

[0015]

As described above, according to the present invention, an adapter having a U-shaped cross section, which is provided with an anti-bite portion in the opening, is attached to the upper surface of the lighting fixture so that the opening faces upward, and the ceiling surface Introduce the power line drawn from the inside of the luminaire through the adapter and the hole of the luminaire through the adapter,
Since the adapter is fixed to the ceiling surface with a fixing tool while the bite prevention part of the adapter is in contact with the ceiling surface, when replacing the existing lighting equipment with new lighting equipment, the existing lighting equipment and the new lighting equipment Even if the positions of the holes for introducing the power supply line are different, the power supply line from the ceiling surface is introduced into the adapter through the opening of the adapter that opens at the top, and the inside of the adapter is fitted to the holes of the adapter and the lighting fixture. It can be installed into the lighting fixture through the through, and as a result, it can be installed without changing the position of the outlet of the power line on the ceiling side, which improves the workability, and furthermore, the bite prevention part of the adapter prevents the ceiling surface from changing. Since the lighting fixture can be directly attached to the ceiling surface without damage, there is no risk that the lighting fixture will be installed tilted or the appearance of the ceiling surface will be damaged. A.

Further, a washer is brought into contact with the periphery of the lower surface side of the mounting hole provided in the upper surface portion of the lighting fixture from the lower surface side, and a projection projecting on the upper surface portion of the washer is inserted into the mounting hole and the projection object is inserted. Is located at the edge of the mounting hole, and the adapter is fixed by the screw inserted into the washer, so it is possible to prevent the washer from slipping due to protrusions and to securely attach the adapter to the upper surface of the lighting fixture. is there.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a lighting fixture of the present invention when directly attached.

FIG. 2 is a front view of the above lighting device in a directly mounted state.

FIG. 3 is a side view of the above lighting device in a directly mounted state.

4 (a), (b), (c), and (d) are cross-sectional views of respective examples of the bite-in prevention portion provided in the adapter.

FIG. 5 is a perspective view of an example of suspending a lighting fixture with a pipe using the adapter of the present invention.

FIG. 6 is a cross-sectional view of a portion where the adapter is attached to the lighting fixture when the above lighting fixture is directly attached.

FIG. 7 is a cross-sectional view of a portion where the adapter is attached to the lighting fixture when the above lighting fixture is suspended from a pipe.

8A and 8B are perspective views showing examples of washers used in the above.

FIG. 9 is a perspective view of an example in which a lighting device is suspended by a pipe using a conventional adapter.

[Explanation of symbols]

 1 Lighting Fixture 2 Opening 3 Bite Prevention Part 4 Adapter 5 Ceiling 6 Fixture 7 Mounting Hole 8 Washer 9 Projection 10 Screw 11 Power Line 12 Hole

Claims (2)

[Claims] 1. An adapter having a U-shaped cross section, which is provided with an anti-bite part in an opening on the upper surface of a lighting fixture, is attached so that the opening faces upward, and a power supply line drawn from a ceiling surface is passed through the adapter to illuminate the adapter and the lighting. A structure for mounting a lighting fixture, which is introduced into a lighting fixture through a hole of the fixture, and the adapter is fixed to the ceiling surface with a fixing tool in a state where the bite prevention portion of the adapter is in contact with the ceiling surface. 2. A washer is abutted from the lower surface side around the lower surface side of a mounting hole provided in the upper surface portion of the lighting fixture, and a projection protruding from the upper surface of the washer is inserted into the mounting hole and the projection is also provided. The mounting structure for a lighting fixture according to claim 1, characterized in that the adapter is fixed to the edge of the mounting hole by a screw inserted into the washer.