JPH0238310Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an illuminated advertising device with built-in fluorescent tubes for illumination, which are embedded on or inside a wall.

As is well known, an illuminated advertising device installed on the surface of a wall, etc. usually has a shallow box-shaped frame with multiple illumination fluorescent tubes arranged at required intervals. The advertising text, designs, photographs, etc. displayed on the translucent display board that is attached to the front of the body are illuminated from inside to enhance the visual effect. Due to the need to fit within a limited depth, it is difficult to provide sufficient space between the display board and the lighting fluorescent tubes, and for this reason, the fluorescent tubes are placed extremely close to the back of the display board. As a result, the area directly behind the fluorescent tubes became extremely bright, resulting in illumination spots along the length of the fluorescent tubes on the display board.

One way to solve this problem is to insert a light diffusing screen plate between the display panel and the fluorescent tube, whose light transmittance gradually increases as you move away from the center. It was suggested that the intensity of the concentrated light should be dispersed over the entire surface to eliminate uneven lighting.

This method of inserting a screen plate eliminates the unevenness of light that appears along the length of the fluorescent tube, and
Because it diffuses the concentration of light and supplies uniform light to the entire surface of the display board, the number of fluorescent tubes used can be reduced compared to the conventional method of increasing density and eliminating light spots.
This also has the advantage of reducing power consumption.

However, although this method of inserting a screen plate has the above-mentioned effects, it has not yet been fully utilized in actual advertising devices because an effective attachment means has not yet been found.

In particular, the screen plate needs to be installed in a narrow space, and the fluorescent tubes covered by the screen plate need to be replaced, so it must be easy to replace. This must be easy to do, and since the screen plate is installed close to the fluorescent tubes, it expands and contracts under the influence of heat, so a structure that can absorb this is required. Of course,
Since the light transmittance of the screen plate is set in advance, the screen plate must be fixedly attached to each fluorescent tube at constant intervals.

The present invention was devised in view of these demands.In particular, the screen plate of this invention is easy to attach and detach, and it can sufficiently cope with the replacement work of fluorescent tubes, and provides uniform and stable illumination to the display panel. An object of the present invention is to provide an illuminated advertising device equipped with a screen plate for light diffusion.

Examples illustrating the present invention will be described below.
I will explain its features in detail.

The drawings show an example of the present invention implemented for an illuminated advertising device that is installed so that the entire body is fitted into a recess formed in a wall; Figure 1 is a front view of the advertising device;
The figure is a cross-sectional view taken along the line taken from the upper figure, FIG. 3 is a partially enlarged cross-sectional plan view of FIG. 1, and FIG. 4 is an enlarged vertical cross-sectional side view of the main part.

Reference numeral 1 in the drawing is a frame body which is the main body of the advertising device formed from extruded aluminum material, 2 is a picture frame-shaped frame that is fitted into the front opening of this frame body so that it can be opened and closed freely, and 3 is a frame body that is fitted into the front opening of this frame body. A display plate 4 made of a translucent plate that covers the fitting opening is a device main body to which fluorescent tubes 5 arranged at required intervals are mounted inside the container frame.

In the container frame 1 shown in this embodiment, four fluorescent tubes 5 are arranged horizontally at equal intervals, and in the left and right spaces there are reflecting plates 6, 6 which are inclined toward the inside.
is provided.

The fixture body 4 is a conventionally used trough-type fluorescent lamp fixture, and there are sockets 7 at both ends of the front part 4'.
7 is equipped with a fluorescent tube 5 between these sockets.
It is designed to be installed.

In the figure, reference numeral 8 denotes a mounting bracket attached to the front face portion 4' of the instrument body 4, and numeral 9 denotes a screen plate for light diffusion that is attached to cover the front surface of the fluorescent tube 5 via the attachment bracket.

As shown in FIG. 5, the mounting bracket 8 is made by bending a metal band plate into a U-shape, and has a pair of holding arms 8b and 8c facing each other with a central mounting piece 8a in between. The distal end is provided with opposing locking claws 10, 10 for locking the edge of the screen plate 9.

This mounting bracket 8 is fixed to the front part 4' of the instrument main body by inserting screws 12 into through holes 11 provided in the mounting piece 8a. Fix it vertically,
The respective holding arms 8b and 8c are vertically opposed to each other.

As shown in FIG. 3, the holding arms 8b and 8c are arranged so that the locking claws 10 and 10 at their tips reach between the fluorescent tube and the display panel 3 beyond the fluorescent tube mounted in the socket. The height is selected.

On the other hand, the screen plate 9 is made of an acrylic transparent plate having a length approximately equal to the length of the fluorescent tube 5 and a width that can sufficiently cover the top of the fluorescent tube.
It is a plate made by pasting and forming a sheet on one side, which has the smallest transmission area in the center and gradually increases in transmission area as it goes up and down.This plate is fixed to the front of the device body. It is mounted by pushing open the holding arms 8b, 8c of the mounting bracket, and engaging both edges with the locking claws 10, 10 at the tips thereof.

The present invention is constructed as described above, and the screen plate is attached to both of its holding arms 8b and 8 with respect to the mounting bracket.
Push open c using the spring properties of the material, and attach locking claw 1.
This can be easily attached by crossing both edges of 0 and 10. At this time, particularly in the present invention, the lower edges of the screen plates 9 facing from above are engaged with the locking claws 10 of the lower holding arms 8c on each side of the plurality of mounting brackets 8 arranged at intervals. It is extremely convenient to temporarily support the screen plate, then lift and open the upper holding arms 8b of each mounting bracket, and engage the locking claws 10 on the upper edge of the screen plate. This installation work can be done easily and quickly, and the screen plate can be removed by doing the reverse work.

In this way, the present invention allows the screen plate to be easily attached and detached, making it possible to quickly replace fluorescent tubes, as well as retaining the screen plate with spring properties even if the screen plate expands due to the heat of the fluorescent tubes. Because the arm is flexible, it can be attached and detached under certain conditions at all times.
Moreover, the screen plate will not be damaged and can be used in a stable state.

Furthermore, since the mounting brackets that support the screen plate can be formed by bending metal strips, they can be manufactured at low cost, and they can also be easily attached to the main body of conventional equipment, making it possible to use off-the-shelf equipment. Advertising devices also have the advantage of being immediately implementable.

Note that the reflecting plates 6, 6 shown in the illustrated embodiment
Conventionally, two separate fluorescent tubes were installed vertically at the mounting position of the , but in the present invention, by attaching the screen plate 9, excess light is reflected on this screen plate and diffused, and the light is reflected on the reflector plate 6. Since it is guided, it can be used in place of the fluorescent tubes installed here, making it a great help in saving electricity.

[Brief explanation of drawings]

The drawing shows one embodiment of the present invention.
The figure is a front view, Figure 2 is a sectional view taken along the line of Figure 1, Figure 3 is a partial enlarged cross-sectional plan view of Figure 1, Figure 4 is an enlarged longitudinal sectional side view of the main parts, and Figure 5 is a mounting bracket. FIG. 1... Instrument frame body, 3... Display board, 4... Instrument body, 5... Fluorescent tube, 8... Mounting bracket, 8b, 8c
...Holding arm, 9... Screen plate, 10... Locking claw.

Claims (1)

[Scope of utility model registration request] An illuminated advertising device in which a fluorescent tube for illumination is housed inside the device frame to illuminate advertising characters, etc. expressed on a translucent display board covering the front surface of the device frame, with a socket for mounting the fluorescent tube. A plurality of mounting brackets having a pair of spring holding arms facing each other are provided on the front surface of the instrument body at required intervals in the longitudinal direction of the instrument body, and these mounting brackets are provided at the tips of opposing holding arms. An illuminated advertising device characterized in that both edges of a light-diffusing screen plate are locked to locking claws so as to cover the front surface of the fluorescent tube which is detachably clamped and mounted.