JPH11111042A - Installation structure for luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation structure for a luminaire capable of firmly installing the luminaire regardless of an inclination angle of a ceiling. SOLUTION: In an installation structure, a luminaire 9 opened on the lower surface side and provided with an outer flange 9g at an opening circumferential edge part is installed by applying the outer flange 9 to an embedding hole 8a provided on a ceiling, and threading a nut 10 with an installation bolt suspended from a building body. In this case, a support part protruded roughly in an arc form on the opening side and having an insertion hole in which the installation bolt 7 is inserted in an arc direction is provided on an upper surface part 9a of the luminaire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture mounting structure for mounting a lighting fixture on a ceiling member by a support bolt.

[0002]

2. Description of the Related Art A conventional lighting fixture mounting structure will be described with reference to FIGS. FIG. 4 is a side cross-sectional view illustrating a mounting structure of a lighting fixture. FIG. 5 is a side sectional view for explaining a mounting structure of the lighting fixture. FIG. 6 is a side cross-sectional view illustrating a mounting structure of a lighting fixture.

In FIG. 4, 1 is a building frame, 2 is a mounting bolt, 3 is a ceiling member, 4 is a lighting fixture, and 5 is a nut.

[0004] The mounting bolt 2 is a rod-shaped body hanging down from the building frame 1, and has a thread groove formed on an outer surface thereof.

The ceiling member 3 intersects the axis L1 of the mounting bolt 2 at a predetermined angle and has an opening 3a below the mounting bolt. In FIG. 4, the ceiling member 3 is configured to cross the axis L1 substantially perpendicularly.

The lighting fixture 4 has an insertion hole 4a in the upper surface 4d into which the mounting bolt 2 is inserted while being fitted into the opening 3a, and a lamp 4b and a reflection plate 4c are provided inside.

When the lighting fixture 4 is fitted into the opening 3a and the mounting bolt 2 is inserted through the insertion hole 4a, the nut 5 is screwed into the tip of the mounting bolt 2 projecting downward from the insertion hole 4a. The lighting device 4 is supported.

Incidentally, there are cases where the ceiling member 3 is not only perpendicularly intersecting the axis L1 but also obliquely intersecting as shown in FIG. 5 and FIG.

In this case, as shown in FIG. 5, the nut 5 is screwed and supported on the mounting bolt 2 with the upper surface 4d of the lighting fixture 4 inclined at an angle to the mounting bolt 2. It was made like that.

In another example, as shown in FIG. 6, the shape of the luminaire 4 is such that the upper surface 4d vertically intersects the mounting bolts 2 and the lower flanges 4e, 4e are connected to the ceiling member 3. Are formed so as to be inclined along the lower surface 3b.

[0011]

However, in the lighting fixture mounting structure shown in FIG. 5 as described above, the nut 5 is not in surface contact with the lighting fixture 4 but in contact with the corner. Since the nut 5 cannot be firmly tightened, the nut 5 may not be firmly tightened and may be loosened. In addition, an asymmetric force may be applied to the vicinity of the insertion hole 4a, so that the vicinity of the insertion hole 4a may be deformed.

In the mounting structure of the lighting fixture shown in FIG. 6, although there is no fear of the above, since the shape of the lighting fixture 4 is determined according to the angle of the ceiling member 3 with respect to the axis L1, the inclination of the ceiling member 3 is reduced. The degree of freedom in mounting with respect to the angle was low.

Therefore, there is a problem that the lighting equipment cannot be firmly attached to various inclination angles of the ceiling member.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to mount a lighting fixture capable of firmly mounting a lighting fixture regardless of the inclination angle of a ceiling member. It is to provide a structure.

[0015]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a luminaire having an opening at a lower surface side and an outer flange at a periphery of the opening. In a mounting structure of a lighting fixture, the outer flange is brought into contact with an embedding hole provided in a ceiling, and a nut is screwed into a mounting bolt hanging from a building frame and attached to an upper surface of the lighting fixture. A support portion is provided on the opening side, the support portion having a substantially circular arc shape and having an insertion hole through which the mounting bolt is inserted along the substantially circular arc direction.

According to a second aspect of the present invention, the support portion is a support fitting fixed to an upper surface of the lighting fixture.

According to a third aspect of the present invention, the support portion is formed integrally with the lighting device main body on an upper surface of the lighting device.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a lighting fixture mounting structure according to the present invention will be described with reference to FIGS. 1 and 2, and a second embodiment will be described with reference to FIG.

[First Embodiment] FIG. 1 is a side sectional view for explaining a mounting structure of a lighting fixture. FIG. 2 is a perspective view showing the appearance of the support fitting.

In FIG. 1, 6 is a building frame, 7 is a mounting bolt, 8 is a ceiling member, 9 is a lighting fixture, 10 is a nut, 1
Reference numeral 1 denotes a support fitting corresponding to the support portion.

The mounting bolt 7 is for mounting the lighting fixture 9 and is a rod-like body hanging down from the building frame 6 and has a thread groove formed on the outer surface. The mounting bolt 7 is fixed to the building frame 6.

The ceiling member 8 intersects the axis L2 of the mounting bolt 7 at a predetermined angle and has an opening 8a below the mounting bolt 7 corresponding to an embedding hole.
In FIG. 1, the ceiling member 3 is obliquely intersecting the axis L1. The lower surface 8b of the ceiling member 8 is exposed to the indoor side.

The luminaire 9 has an insertion hole 9a in the upper surface 9d which fits into the opening 8a and through which the mounting bolt 7 is inserted, and has a lamp 9b and a reflection plate 9c provided therein.
The lower surface of the lighting fixture 9 is open, and an outer flange 9g is provided at the periphery of the opening. The outer flange 9g contacts the edge of the opening 8a of the ceiling member 3 when the lighting fixture 9 is mounted. It has been made like that.

The support fitting 11 is interposed between the lighting fixture 9 and the nut 10 when the lighting fixture 9 is mounted. As shown in FIG. 2, the support fitting 11 has two mounting pieces 11 a, 11 a that are in surface contact with the lighting fixture 9, and connects the mounting pieces 11 a, 11 a and is curved so as to form an arc downward in the mounted state. And a curved piece 11b. The supporting bracket 11 is attached to the curved piece 11b.
A notch hole 11c extending in the circumferential direction of b is formed. The length of the cutout hole 11c in the short direction is such that the mounting bolt 7 can be inserted and the nut 10 is not inserted.

In the lighting fixture mounting structure constructed as described above, first, the mounting pieces 11a, 11a are fixed to the lighting fixture 9 in advance so that the support fitting 11 covers the insertion hole 9a. When the lighting fixture 9 is fitted into the opening 8a, and the mounting bolt 7 is inserted through the insertion hole 9a and the notch hole 11c of the supporting metal 11, the mounting bolt 7 is protruded downward from the supporting metal 11. The light fixture 9 is supported by screwing the nut 10. Therefore, the nut 10 can contact the curved piece 11b of the support fitting 11 with a substantially surface.

Therefore, the person performing the mounting operation can easily tighten the nut 10 because the corner of the nut 10 does not hit the lighting fixture 7, and the nut 10 can be firmly fixed regardless of the inclination angle of the ceiling member 8. 10 can be tightened. Furthermore, even if the nut 10 is tightened firmly, the lighting fixture 9 itself is unlikely to be deformed.

Further, since the support fitting 11 is used by being attached to the lighting fixture 9, the conventional lighting fixture 9 can be used without newly designing the lighting fixture 9.

[Second Embodiment] FIG. 3 is a side sectional view for explaining a mounting structure of a lighting fixture. In FIG. 3, the same reference numerals are given to the same parts as those of the lighting fixture mounting structure described in the first embodiment,
A detailed description of equivalent parts is omitted.

The mounting structure of the lighting fixture of the present embodiment shown in FIG. 3 is different from the mounting structure of the lighting fixture described in the first embodiment described above and has the following features.

That is, the support fitting and the lighting fixture 9 are integrated. Specifically, the insertion hole provided in the upper surface 9d of the lighting fixture 9 is a long hole 9e extending in the tilt direction of the ceiling member, and the long hole 9e is formed so that the vicinity of the long hole 9e forms an arc in the tilt direction of the ceiling member. The vicinity is cut and raised to protrude downward to form a convex portion 9f corresponding to a support portion.

In the lighting fixture mounting structure constructed as described above, the lighting fixture 9 is fitted into the opening 8a,
When the mounting bolt 7 is inserted into the elongated hole 9e, the nut 10 is screwed to the tip of the mounting bolt 7 protruding downward from the support fitting 11 to support the lighting fixture 9. Therefore, the nut 10 can contact the vicinity of the long hole 9e of the lighting fixture 9 with a substantially surface.

Therefore, the person performing the mounting operation can easily perform the tightening of the nut 10 because the corner of the nut 10 does not hit the lighting fixture 9, and can firmly tighten the nut 10. Furthermore, even if the nut 10 is tightened firmly, the lighting fixture 9 itself is unlikely to be deformed.

Further, since the projection 9f is formed integrally with the lighting fixture 9, the labor for attaching the support fitting to the lighting fixture 9 can be simplified.

[0034]

According to the present invention, the lighting fixture mounting structure of the present invention is constructed as described above. Therefore, the lighting fixture has a substantially arcuate shape on the upper surface portion and on the opening side. And a supporting portion having an insertion hole through which the mounting bolt is inserted along a substantially arc-shaped arc direction, so that the lighting device can be securely attached regardless of the inclination angle of the ceiling member. This has the effect of providing the mounting structure of (1).

According to the second aspect of the present invention, since the support portion is a support fitting fixed to the upper surface of the lighting fixture, a new fitting is provided by attaching the support fitting to a conventional lighting fixture. There is an effect that it is possible to provide a mounting structure of a lighting fixture to which a lighting fixture can be firmly attached regardless of a tilt angle of a ceiling member without creating a lighting fixture.

According to the third aspect of the present invention, since the supporting portion is formed integrally with the fixture body on the upper surface of the lighting fixture, the lighting fixture is firmly provided regardless of the inclination angle of the ceiling member. It is possible to provide a lighting fixture mounting structure that can be easily mounted.

[Brief description of the drawings]

FIG. 1 is a side cross-sectional view illustrating one configuration example of a lighting fixture mounting structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an appearance of a support fitting.

FIG. 3 is a side cross-sectional view illustrating one configuration example of a lighting fixture mounting structure according to a second embodiment of the present invention.

FIG. 4 is a side cross-sectional view illustrating one configuration example of a conventional lighting fixture mounting structure.

FIG. 5 is a side cross-sectional view for explaining another configuration example of a conventional mounting structure of a lighting fixture.

FIG. 6 is a side sectional view illustrating another configuration example of a conventional lighting fixture mounting structure.

[Description of Signs] 7 Mounting bolt 8 Ceiling member 8a Embedding hole 9 Lighting fixture 9a Inserting hole 9e Long hole 9f Supporting portion 9g Outer flange 10 Nut 11 Supporting bracket 11a Mounting piece 11b Curved piece 11c Notch hole

Claims (3)

[Claims] 1. A lighting fixture having an opening on the lower surface side and having an outer flange at the periphery of the opening, wherein the outer flange is brought into contact with an embedding hole provided in a ceiling, and mounting bolts are suspended from the building frame. In a mounting structure for a lighting fixture, a nut is screwed into the lighting fixture, and the mounting bolt is inserted into the upper surface of the lighting fixture along the substantially circular arc direction while protruding in a substantially arc shape toward the opening side. A mounting structure for a lighting fixture, comprising a support portion having an insertion hole. 2. The lighting fixture mounting structure according to claim 1, wherein said support portion is a support fitting fixed to an upper surface portion of said lighting fixture. 3. The lighting fixture mounting structure according to claim 1, wherein said support portion is formed integrally with said fixture main body on an upper surface portion of said lighting fixture.