JPH025451Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to a lighting device.

(Prior art) Lighting equipment is sometimes used by being fixed to a ceiling beam. In this case, when the width of the beam is narrow, the lighting fixture also has a narrow width, and the fixture body is usually fixed to the beam using screws or the like.

By the way, in the past, this type of lighting equipment was configured to stand alone, so as the equipment itself,
It is necessary to use a device that has sufficient mechanical strength to be able to stand alone, and as a result, the lighting device is not only large and heavy, but also expensive.

Also, when arranging multiple lighting fixtures in a line,
Adjacent instruments must be connected using an appropriate connecting device to prevent bending of the line. Therefore, there is an inconvenience that a connecting tool must be prepared for this purpose.

(Problems to be solved by the invention) The purpose of this invention is to simplify the structure and reduce the weight of a lighting fixture installed on a ceiling beam.

(Means for Solving the Problem) This invention, when using a metal gutter-shaped beam as a ceiling beam, constructs a plate-shaped fixture main body narrower than the beam, and stabilizer,
At the same time as installing the sockets, tighten the bolts fixed to the mounting brackets placed inside the beam.
By tightening a nut that is inserted into the instrument body disposed on the opening surface of the beam and screwed into the tip of the bolt from the opening surface side of the beam, the mounting bracket and the instrument body are attached to the side wall of the beam. The apparatus is characterized in that the flange on the inner surface is sandwiched from both sides, thereby fixing the instrument main body to the beam via the mounting fittings.

(Example) An example of this invention will be described with reference to the drawings. Reference numeral 1 is a beam that is attached to the ceiling, etc., and is made by extruding aluminum to have an inverted U-shaped cross section and a gutter-like shape. Flange portions 2 are installed on the inner surfaces of both side walls.

Reference numeral 3 denotes a plate-shaped instrument main body, which is narrower than the beam 1 and wider than the spacing between the flanges. A ballast 4, a socket 5, and other lighting equipment necessary for lighting the discharge lamp are fixedly installed on its surface. There is no need for this fixture body 1 to have the mechanical strength required as a lighting fixture by itself, as in the conventional case. It is sufficient to simply construct it from a relatively thin metal plate having sufficient mechanical strength to install the lighting components.

Reference numeral 6 denotes a mounting bracket, which is formed of a parallelogram-shaped metal plate or the like. A bolt 7 is fixed in the center by welding or the like.
8 indicates the welded portion. This bolt 7 passes through the instrument body 3, and has a nut 9 (for example, a wing nut) screwed into its tip.

The mounting bracket 6 has a length such that both ends 6A thereof rest on both flanges 2, and is also long enough that when attempting to turn inside the beam 1, it comes into contact with the inner surface of the side wall of the beam 1 and cannot turn. It is set to .

In the above configuration, in order to install the instrument body 3 on the beam 1, the bolt 7 fixed to the mounting bracket 6 is
is inserted into the instrument body 3, and a nut 9 is temporarily screwed into its tip. Then, attach this mounting bracket 6 to the beam 1
It is set inside the beam 1 so as to straddle the upper surfaces of both flanges 2. As a result, the instrument main body 3 comes to be located on the opening side of the beam 1. Note that the back surface thereof is arranged to straddle the lower surfaces of both collar portions 2.

When the nut 9 is tightened onto the bolt 7 in this state, the bolt 7 and therefore the mounting bracket 6 pivot in the direction of the arrow in FIG. 2 due to the friction between the nut 9 and the bolt 7. By this rotation, the mounting bracket 6
When the end edge 6A comes into contact with the inner surface of the side wall of the beam 1, further turning is no longer possible.

At this point, if you further tighten the nut 9, the mounting bracket 6
The device main body 3 acts to sandwich the collar portion 2 from both sides thereof. By this clamping, the instrument main body 3 is fixedly supported on the beam 1 via the mounting fittings 6.

When supported in this manner, the instrument body 3 is integrally supported and reinforced by the beam 1, so the instrument body 3 does not need to have enough mechanical strength to exist on its own. Therefore, the configuration is simpler and can be manufactured at a lower cost.

Since this mounting bracket 6 is attached to the appliance body 3 side, the position must be determined during construction before attaching it to the appliance body 3.
Since there is no need for the trouble of attaching the parts, and therefore there is no need for detailed positioning, construction becomes easier.

In addition, since the position of the instrument body 3 is regulated by the beam 1, if a plurality of instrument bodies 3 are arranged in series on one beam 1, it is possible to use a connecting tool to connect adjacent instrument bodies. is not necessary, and even without using such a connector, each device body 3
You will be able to arrange them in a straight line. However, metal fittings for spacing must be used appropriately.

In order to secure the mounting position of the mounting bracket 6 with the nut 9, after fixing with the nut 9, the screw 10 is passed through the instrument body 3, and then the mounting bracket 6 is secured.
It is best to fix it by screwing it into place. This is convenient because the rotation of the mounting bracket 6 is reliably restrained.

(Effects of the invention) As detailed above, according to this invention, it is not necessary to use a device with high mechanical strength as the main body, and therefore this type of device can be constructed easily and at low cost. It has the advantage of being easy to manufacture and easy to install.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of this invention, Figure 2 is a front view showing an embodiment of this invention.
The figure is a plan view of the same, Figure 3 is a perspective view of the instrument body, Figure 4 is a perspective view of the main body of the instrument,
The figure is also a perspective view seen from the back side. 1... Beam, 2... Flange, 3... Instrument body, 4
...Ballast, 5...Socket, 6...Mounting bracket,
6A...Edge, 7...Bolt, 9...Nut.

Claims (1)

[Scope of Claim for Utility Model Registration] A ceiling beam made of metal and configured in the shape of a gutter and having flanges on the inner surfaces of both side walls, and a ceiling beam that is narrower than the beam and wider than the spacing between the flanges. , and is plate-shaped, and has a ballast, socket, and other lighting equipment installed therein; a mounting bracket which is arranged above the flange inside the beam and rotates so that both ends thereof engage the inner surfaces of both side walls of the beam; A bolt that is fixed and inserted into the instrument body disposed on the opening surface of the beam, both end edges of the mounting bracket that engage with the inner surfaces of both side walls of the beam, and With each of the flanges sandwiched from above and below by both end edges,
and a nut screwed into the bolt so as to tighten the fixture body to the mounting fitting.