JPS587544Y2 - lighting equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lighting device that illuminates a predetermined area such as a blackboard or wall surface to a certain extent.

Conventionally, this type of lighting equipment has, for example, installed a straight tube-shaped fluorescent lamp in the lower part of the elongated equipment body using lamp sockets provided at both ends, attached a reflector plate to the equipment body so as to be rotatable, and mounted a blackboard. This makes it possible to illuminate a fairly wide area of the walls.

In other words, when installing the reflector on various objects that require illumination, such as a blackboard, the reflector can be rotated to accommodate the object without changing the mounting location of the device. be.

By the way, in such a lighting device, when attaching the reflector to the device body in a rotatable and removable manner, for example, a support plate and an inner support plate are respectively attached at both ends of the device body, and the support plate and the inner support plate are attached at both ends of the device body. The end plates at both ends of the reflector are inserted between the reflector and the reflector, and screws are threaded through the support plate and the end plates of the reflector to the inner support plate to support the reflector in a freely adjustable rotation manner. .

However, in such a case, the gap between the support plate and the inner support plate needs to be wide enough to allow the user to easily insert the end plate of the reflector during assembly. Therefore, the inner support plate is formed with dimensions sufficiently larger than the wall thickness of the end plate of the reflector plate, and when the screw is tightened, the inner support plate bends outward and tilts, resulting in an annular protrusion around the screw hole. , only the lower part of the protrusion comes into contact with the end plate of the reflector, and the upper part of the protrusion is separated from the end plate of the reflector, and as a result, sufficient tightening cannot be achieved.

Therefore, even if the angle of the reflector is adjusted and fixed temporarily, it is likely to be rotated by a relatively small force such as vibration or dusting during cleaning, and the illumination direction will change.

Therefore, if the gap between the support plate and the inner support plate is made very small so that the entire surface of the protrusion of the inner reflector comes into complete contact with the end plate of the reflector, as described above, the end plate of the reflector Difficult to align and insert.

The present invention was developed to eliminate the above-mentioned drawbacks, and allows the reflector to be rotated with respect to the main body of the instrument without any hindrance to the operation of attaching or detaching it, and with the slight force of shaking or dusting during cleaning. It is an object of the present invention to provide a lighting fixture in which a reflector plate can be fastened with sufficient strength so that the direction of irradiation does not change.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

Reference numeral 1 denotes an instrument main body, and the main body 1 includes an elongated base frame 2 having openings at both ends and the front surface and a U-shaped cross section.A lid is attached to the edge of the front opening of the base frame 2. The body locking portion 3 is formed in a bulging manner.

An end plate 4 is fixed to cover the openings at both ends of the base frame 2, and a reflector support plate 5 is integrally provided on the front side of the base frame 2 to protrude from the end plate 4. An inner support plate 6 is fixed to the inner side of 4 so as to face each other with a predetermined gap therebetween.

Further, a lid body 7 having a chevron-shaped cross section is attached to cover the front opening of the base frame 2.

This lid body 7 has a locking portion 8 formed at its edge, and this locking portion 8
It is removably connected to the locking portion 3 of the base frame 2.

The large inclined surface of the lid body 7 is directed upward.

In addition, U-shaped socket mounting bases 9 are fixed to internal surfaces at both ends of the base frame 2, and lamp sockets 10 protruding from the lid body 7 are mounted to the socket mounting bases 9 at both ends.
A straight tube type fluorescent lamp 11 is placed between the sockets 10 at both ends.
is installed.

Note that lighting components such as a ballast are housed within the base frame 2.

The inner support plate 6 is disposed on the outside of the socket 10 to face the socket 10, has a width slightly larger than the width of the socket 10, and has both edges connected to the socket.
It protrudes from both sides of 10.

Reference numeral 12 denotes a reflecting plate, and this reflecting plate 12 has two sides with one side open.
End plates 14 are attached to both ends of a reflector body 13 having a curved surface, and the sockets 10 are attached to both ends of the reflector body 13.
The socket insertion hole 15 is formed over a range where there is no problem in protruding the reflector plate 12 and rotating the reflector plate 12.

Further, as shown in FIG.
7 are bored therein, and screw holes 19 are bored in the inner support plate 6 in correspondence with the through holes 16, 17.

Furthermore, annular protrusions or protrusions 20 and 21 are formed on the opposing inner surfaces of the reflector support plate 5 and the inner support plate 6, centering around the through hole 16 and screw hole 19.

The height of the protrusion 21 of this inner support plate 6 is formed in an inclined shape with a flat slope as a whole so that it is higher in the upper part and lower in the lower part.

The reflector plate 12 has the end plates 14 at both ends inserted into the gap 22 between the reflector support plate 5 and the inner support plate 6 of the end plate 4 at both ends, and is positioned coaxially with the center of the lamp 11. Through hole 1 of reflector support plate 5 of end plate 4 at
6 to the threaded hole 19 of the inner support plate 6 passing through the through hole 17 of the end plate 14 of the reflector plate 12, and tighten it to fix the reflector plate 12 in a rotatable and removable manner. ing.

Further, light shielding plates 24 are integrally provided to protrude from both ends of the base frame 2 of the main body 1 on the back side in correspondence with the insertion holes 15 of the socket 10.

Then, the base frame 2 of the main body 1 is fixed to a blackboard or the upper part of a ceiling surface, and the blackboard surface or wall surface is illuminated.

If you want to adjust the lighting angle, loosen the screw 23,
Adjust the rotation of the reflection plate 12 and tighten the screw 23 again to fix it.

When rotating the reflector 12, the cover 7 of the main body 1 forms a chevron and is inclined upward on the opening side of the reflector 12, so the reflector 12 can be adjusted over a wide range.

At this time, when the screws 23 are tightened to fix the reflector 12, the inner support plate 6 is bent outward and inclined, and the entire surface of the annular protrusion 21 comes into contact with the end plate 14 of the reflector 12.

That is, since the height of the protrusion 21 is formed in an inclined shape so that the height is higher in the upper part and lower in the lower part, the height of the protrusion 21 is increased due to the inclination of the inner support plate 6.
contacts the end plate 14 of the reflecting plate 12 as a whole.

As a result, the end plate 14 of the reflection plate 12 is securely clamped and fixed between the support plate 5 and the inner support plate 6.

In the above embodiment, the protrusion 21 forming the protrusion of the inner support plate 6 is formed in an annular shape, but as shown in FIG. Also, as shown in FIG. 7, horizontal protrusions 21b are provided at the top and bottom of the screw hole 19, or vertical protrusions 21C are provided on both sides of the screw hole 19, as shown in FIG. It's okay,
Furthermore, it may be formed by a plurality of implementations, and in these cases as well, the height is formed as a whole in an inclined shape so that the height is higher in the upper part and lower in the lower part.

According to the present invention, when the reflector is tightened with screws to fix the reflector, the entire protrusion of the inner support plate is formed to be inclined at a predetermined angle, so that the entire protrusion is reflected. The reflector can be securely tightened and fixed by contacting the end plate of the plate, and will not rotate due to slight external force such as when the reflector is accidentally touched, vibrations, or dusting during cleaning. The irradiation direction does not change due to the irradiation direction, and the gap between the support plate and the inner support plate can be made wide enough to insert the reflector, making it easy for the user to insert the reflector without erroneous operation. It is suitable for attaching and detaching a long reflector.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the lighting device of the present invention, Fig. 2 is a partially cutaway front view, Fig. 3 is a sectional view thereof, Fig. 4 is a perspective view thereof, and Fig. 5 6 is an enlarged sectional view of a portion thereof, and FIGS. 6 to 8 are partial front views of other embodiments, respectively. 1... Instrument body, 5... Support plate, 6...
...Inner support plate, 12...Reflector plate, 14
---One end face plate, 21.21 a, 21 b, 21
C...protrusion, 23...screw.

Claims (1)

[Scope of utility model registration request] A device main body, a support plate and an inner support plate arranged opposite to each other with a gap at both ends of the device main body, a reflector having an end plate inserted between the support plate and the inner support plate, and the above-mentioned a screw that passes through the end plate of the reflector from the support plate and is screwed into the inner support plate to rotatably support and fix the reflector, and when the screw is tightened to the inner support plate, the reflector 1. A lighting device comprising a protrusion that is inclined as a whole so that the height thereof is increased in the upper part so as to be in contact with the end plate of the lamp as a whole, and the height is lowered in the lower part.