JPH0594710A - Illumination apparatus - Google Patents

Abstract

PURPOSE:To provide an illumination apparatus capable of easily selecting the case that the support of an illumination apparatus main body may be relatively simple or the case that firm support is required and capable of being easily fitted even when firm support is required. CONSTITUTION:Grooves 2 opened at one end are provided on the horizontal bracket section 1b of a support metal 1 fixed to the ceiling wall of a building. An illumination apparatus main body 3 is suspended at the lower end sections of rods 4 supported and suspended with the upper end sections on the grooves 2. The rod 4 has a screw section 5 and a constricted section 6 having a partially reduced outer diameter on the outer periphery at the upper end section, the constricted section 6 is bitten and hooked in the groove 2 of the support metal 1, and a nut 7 screwed to the screw section 5 can be fixed to the support metal 1 in contact with the lower face of the bracket section 1b of the support metal 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture applied to a factory facility as an emergency light or a guide light,
In particular, the present invention relates to a lighting fixture in which the main body of the lighting fixture is hung from a ceiling wall of a building via a rod, and the support structure of the upper end of the rod to the ceiling wall is improved.

[0002]

2. Description of the Related Art Conventionally, as a luminaire of this type, a groove having an opening at one end is provided in a horizontal bracket portion of a support fitting fixed to a ceiling wall of a building, and the lower end of a rod hanging down with the upper end supported by the groove. There is known a structure in which a main body of a lighting fixture is hung on a section.

In such lighting equipment, there are roughly two types of conventional structures for supporting the upper end of the rod in the groove of the bracket portion of the support fitting.

One is a structure in which a constricted part of which the outer diameter is partly reduced is formed at the upper end of the rod and the constricted part is hooked in a groove of a bracket part of a support fitting. It is applied to a few places.

On the other hand, a threaded portion is engraved on the outer periphery of the upper end portion of the rod, and with this threaded portion inserted in the groove of the bracket portion of the support fitting, the nut is screwed so as to be sandwiched from the vertical direction of the bracket portion. This is a so-called double nut type tightening structure, and is installed in a place where there is a high possibility of rocking by wind or the like, such as outdoors.

[0006]

However, in the case of the former hooking structure, the work of attaching the rod to the support fitting is relatively easy, but the support state may become unstable.

In the latter case, the structure is such that the support fitting is pinched from above and below with a nut in order to fix the rod to the support fitting, and it is necessary to fit the nut together with a heavy object such as the main body of the lighting fixture. Yes, there were cases where installation work was difficult.

The present invention has been made in view of the above circumstances, and can be easily selected and supported when the luminaire main body is supported relatively easily and when strong support is required. At the same time, it is an object of the present invention to provide a lighting fixture that can be easily mounted even when strong support is required.

[0009]

In order to achieve the above object, the present invention provides a groove of one end opening in a horizontal bracket portion of a support fitting fixed to a ceiling wall of a building, and an upper end portion of the groove. In the luminaire in which the luminaire main body is hung on the lower end of the rod that supports and hangs the rod, the rod has a threaded portion and a constricted portion with a partially reduced outer diameter on the outer peripheral surface of the upper end, and The constricted part is hooked in the groove of the support metal fitting while being fixed to the support metal fitting by bringing the nut screwed into the screw part into contact with the lower surface of the bracket portion of the support metal fitting. The feature is that it is possible.

[0010]

According to the above construction, when the main body of the luminaire can be supported relatively easily, the constricted part of the rod may be simply engaged with the groove of the one end opening of the bracket part of the support fitting. .

When it is necessary to firmly support the rod, a nut screwed on the threaded portion of the rod may be brought into contact with the lower surface of the bracket portion of the support fitting to fix it to the support fitting.

Therefore, it becomes possible to easily select the case where the support of the luminaire main body is relatively simple and the case where the strong support is required.

Further, when strong support is required, it is only necessary to tighten the nut from below and bring it into contact with the lower surface of the bracket portion of the support fitting, so compared to the case where a conventional double nut is used. The installation work can be done easily.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing the entire apparatus, FIG. 2 is an enlarged perspective view showing an essential part, FIG. 3 is a side view showing a mounted state, and FIG. 4 is a sectional view taken along the line AA of FIG. is there.

In the lighting equipment of this embodiment, the support metal fitting 1 fixed to the ceiling wall of the building has a rectangular flat ceiling fixing plate portion 1a fixed to the ceiling by screws or the like, and this ceiling fixing plate. It is composed of a pair of horizontal bracket portions 1b facing each other and formed by bending downwardly from both ends in the longitudinal direction of the portion 1a in a substantially U-shape.
A rising portion 1c is formed on the opposite edge side of each bracket portion 1b, and each of the bracket portions 1b is provided with a groove 2 having a plane one end opening that is opened at a substantially central position on the opposite edge side.

The luminaire main body 3 is suspended from the lower ends of a pair of rods 4, the upper ends of which are supported by the groove 2 of the bracket portion 1b.

Each rod 4 is made of, for example, a metal pipe, and has a threaded portion 5 and a constricted portion 6 whose outer diameter is partially reduced on the outer peripheral surface of the upper end portion thereof.
The constricted portion 6 is formed by pressing and deforming the rods 4 from the directions opposite to each other, and the narrowest portion of the constricted portion 6 substantially fits the width of the groove 2 of the support fitting 1 and fits into the groove 2. In addition, the upper side 6a of the constricted portion 6 is substantially horizontal and can be hooked on the upper side of the bracket portion 1b while being bitten into the groove 2.

A nut 7 is attached to the threaded portion 5 of each rod 4.
Are respectively screwed from the upper end side to below the constricted portion 6, and the nut 7 can be fixed to the support fitting 1 by abutting on the lower surface of the bracket portion 1b.

However, when the luminaire main body 3 is relatively easy to support, for example, when it is installed indoors, the constricted portion 6 of the rod 4 is simply attached to the bracket portion 1b of the support fitting 1. It suffices to engage the groove 2 so that it fits from the opening.

When it is necessary to firmly support the rod 4 such as when it is installed outdoors, the threaded portion of the rod 4 is held with the constricted portion 6 of the rod 4 hooked in the groove 2 of the bracket portion 1b. The nut 7 screwed to the screw 5 may be fixed to the support fitting 1 by bringing it into contact with the lower surface of the bracket portion 1b of the support fitting 1.

Therefore, according to this embodiment, it is possible to easily select and support the luminaire main body 3 when it is relatively simple to support and when the luminaire main body 3 requires strong support. Become.

Further, when strong support is required, it is sufficient to bring the nut 7 into contact with the lower surface of the bracket portion 1b of the support fitting 1, so that mounting is more difficult than when using a conventional double nut. Work can be done easily.

[0024]

As described above, according to the luminaire of the present invention, the rod is constructed to have the threaded portion and the constricted portion, and one nut is used to relatively support the luminaire main body. There are excellent effects such that the support can be easily selected and supported in the case of being simple and the case of requiring strong support, and the mounting work can be easily performed even in the case of requiring strong support.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of the entire apparatus showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing an essential part of the embodiment.

FIG. 3 is a side view showing a mounting state of the embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Supporting bracket 1b Bracket part 2 Groove 3 Lighting fixture main body 4 Rod 5 Screw part 6 Constriction part 7 Nut

Claims (1)

[Claims] 1. A horizontal bracket portion of a support fitting fixed to a ceiling wall of a building is provided with a groove having one end opening, and an upper end portion of the groove is supported by the groove to suspend a lighting fixture main body at a lower end portion thereof. In the luminaire described above, the rod has a threaded portion and a constricted portion having a partially reduced outer diameter on the outer peripheral surface of the upper end, and the constricted portion is hooked in a groove of the support fitting. On the other hand, the luminaire is characterized in that it can be fixed to the support fitting by bringing a nut screwed into the threaded portion into contact with the bottom surface of the bracket portion of the support fitting.