JP3178819B2 - Signboard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signboard for displaying pictures and photographs by emitting light from a fluorescent tube.

[0002]

2. Description of the Related Art Conventionally, as a typical signboard of this type, a plurality of fluorescent tubes are arranged in a case body having a light reflecting surface on the inner surface side of a back plate, and further, a front side of the case body is arranged. There is an opening / closing door in which a picture or a picture is stored, and the back side of the opening / closing door is illuminated by the light of the fluorescent tube reflected on the reflection surface, and the stored picture or picture is displayed in a backlight manner. Was. Recently, a light transmission adjusting plate having a plurality of large and small through holes arranged regularly and a light diffusing plate for diffusing irradiated light in an irregular direction are interposed between the panel and the fluorescent tube. Known signs are known. By interposing the light transmission adjusting plate and the light diffusing plate, the entire rear surface side of the panel is uniformly illuminated, so that light emission unevenness does not occur when displaying a signboard.

[0003]

However, in this type of signboard, the fluorescent tube or a device relating to light emission of the fluorescent tube is individually mounted in the case body. This was a problem with the light emission of the fluorescent tube. For this reason, it is not easy to remove the case body from the wall surface, particularly in the case of a signboard that is embedded in the wall surface of the structure, and the devices inside the case body are individually separated while the signboard is attached to the wall surface. There has been a problem that it has to be checked or replaced, which requires a great deal of work.

Further, in order to repair an existing signboard to a signboard having a light transmission adjusting plate or a light diffusion plate, a light transmission adjusting plate or a light diffusion plate, a fluorescent tube, In this case, it is necessary to adjust the distance and the facing position, and to install a light transmission adjusting plate and a light diffusing plate on the case body while maintaining the adjusted state. And since the said adjustment was very precise, it takes a lot of trouble to repair an existing signboard to a signboard with a stable light emission state, so even if the case body is still in a sufficiently usable state. However, a signboard having a light transmission adjusting plate and a light diffusing plate had to be newly installed. For this reason, since the case body was expensive, there was a problem that the cost for repairing the signboard was greatly increased.

The present invention makes it possible to easily modify an existing signboard into a suitable signboard in a displayed state, to perform inspection and replacement quickly and easily, and to significantly reduce costs. A signboard is provided.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a case body provided with an opening / closing door having a window capable of displaying a display object on a front side. A plurality of fluorescent tubes arranged inside, and a signboard having light diffusion means interposed between the display object and each of the fluorescent tubes, a substrate having a light reflecting surface substantially matching the shape of the window portion A light emitting unit in which a plurality of fluorescent tubes are arranged and a light diffusing unit is arranged opposite to the front side of each fluorescent tube at an interval, and the light emitting unit is located at a position facing the window in the case body. , And is arranged so as to be detachably fixed via mounting means.

Here, the display object means a picture or a photograph posted on a signboard. The light diffusing means may be any means capable of uniformly irradiating the light of the fluorescent tube toward the display object, and specifically, a light diffusing plate in which a light diffusing film is adhered to a transparent acrylic plate, or a light diffusing plate having a large or small size. And a light transmission control plate in which through holes are regularly arranged. Furthermore, the mounting means
It is sufficient that the case body and the light-emitting unit can be firmly fixed.For example, a mounting bracket having an overhanging piece at the tip that can abut on the door stop piece of the case body and can be screwed at the contact point, or a magnetic force at the tip Mounting bracket having a strong magnet.

[0008] According to this structure, when the signboard is inspected or the fluorescent tube is replaced, the light emitting unit is removed from the inside of the case body, so that all the fluorescent tubes and the light diffusing means can be inspected outside the case body. Exchange is possible, and when the fluorescent tube and the light diffusing means are mounted again in the case body, it becomes possible to install the devices related to light emission of all the fluorescent tubes in the case body in one process. Further, the light emitting unit is
At the time of shipment from the factory, the distance between the fluorescent tube and the light diffusion plate is adjusted in advance, and the mounting means can be selected in advance in accordance with the distance. There is no need to use a light-emitting unit in which the width and the height of the existing window coincide with each other, so that the entire display object can be uniformly irradiated with the light of the fluorescent tube regardless of the depth of the case body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The signboard of the present invention will be specifically described below with reference to the drawings. As shown in FIGS. 1 and 2, the signboard of the present invention includes a ballast 12 on a bottom portion M in a box-shaped case body 1 provided with an opening / closing door 2 having a window 3 on which a display object can be posted. Control unit 1 in which the lamp and the glow lamp 13 are fixed.
6 and a plurality of spacers 14, a substrate 6 having a light reflecting surface on the front side on the top surface of the spacers 14, and having a plurality of mounting brackets 7 with the case body 1 on left and right side edges, and the substrate 6. A plurality of fluorescent tubes 11 with sockets 9 arranged on the front side of a light diffusion plate 6 and light diffusing plates 5 opposed to each other at a distance from the front side of each fluorescent tube 11 by a holding piece 8 fixed to the substrate 6. The light-emitting unit 4 is mounted on the light-emitting unit 4, and the light-emitting unit 4 is fixedly disposed at a position facing the window 3 in the case body 1 by the mounting bracket 7.

The case body 1 has a door stop piece 17 formed over the entire length on the inner edge side, and when the door 2 is closed,
The opening / closing door 2 comes into contact with the door stop piece 17 to close the inside of the case body 1. The opening / closing door 2 is provided with a window 3 which is formed by laminating a transparent glass plate and a milky white acrylic plate. Further, a display object such as a picture or a photograph can be interposed between the glass plate and the acrylic plate. A plurality of holding portions 19 are provided at intervals along the inner edge of the window frame 18 of the opening / closing door 2 for mounting the opening / closing door 2 and the window portion 3. 3 is detachably held by the window frame 18. The mounting structure of the case 1 and the door 2 is such that the door 2
Window frame 18 is detachably fitted. In the mounting structure, for example, the opening / closing door 2 may be pivotally attached to the upper end of the case body 1 via a hinge, and there is no particular limitation.

A fluorescent tube 1 is provided at the bottom M in the case body 1.
A unit-type discharge control unit 16 having the same number of ballasts 12 and glow lamps 13 as the number of units 1 is mounted. Further, a plurality of spacers 14 are provided on the bottom portion M at intervals in the left-right direction.
When the light-emitting unit 4 is placed along the top surface of the light-emitting unit 4, the light-emitting unit 4 is placed at the same height as the bottom side L of the window 3 of the opening / closing door 2.

The substrate 6 of the light emitting unit 4 is provided with inclined portions 15 which are respectively inclined toward the fluorescent tubes 11 at upper and lower positions which are spaced from each other at positions where the fluorescent tubes 11 are installed. Due to 15, the light of the fluorescent tube 11 is efficiently emitted toward the front side of the case body 1.
At the left and right edges of the substrate 6, plate-like holding pieces 10 are respectively provided on flat portions between the inclined portions 15 toward the front side of the case body 1. Is provided with a through hole 20. When the fluorescent tube 11 is installed on the substrate 6, sockets 9 with extension cords each having a connector at the tip are attached to the respective electrode portions 21 and 21 of the fluorescent tube 11. The protrusions 22 protruding from the other end side are formed with the holding holes 2
By inserting the fluorescent tubes 11 into the fluorescent lamps 11, the fluorescent tubes 11 are held by the substrate 6.

Further, the light diffusing plate 5 is formed by attaching a light diffusing film having a thickness in the range of 100 μm to 200 μm to the entire surface of one end face of the long transparent acrylic plate corresponding to the fluorescent tube 11. The light diffusion plate 5 thus formed
Are installed on the front side of the fluorescent tubes 11, and a plurality of holding pieces 8 that can hold the light diffusing plate 5 are provided upright from the substrate 6 on both side surfaces of each fluorescent tube 11. . The holding piece 8 is provided with a leaf spring for applying an inward biasing force to each end, and the light diffusing plate 5 is clamped by the biasing force of each leaf spring.

At the upper and lower ends of the holding pieces 10, mounting brackets 7 projecting to the front side of the case body 1 are screwed, and the mounting brackets 7 project outward. A piece 23 is provided at the tip. From this, by fixing the contact portions between the contact pieces 17 and the respective overhanging pieces 23 with screws or screws or the like, the light emitting unit 4 placed in the case body 1 allows the contact pieces 17 It will be fixed firmly to.

As shown in FIG. 3, after the light emitting unit 4 is fixedly disposed in the case body 1, wiring is performed between each fluorescent tube 11, the discharge control unit 16, and the breaker 24, and the fluorescent tube 11 can emit light. State. More specifically, the ballast 12 and the glow lamp 13 installed in the discharge control unit 16 each have an extension cord having a connector at the tip, and the light emitting unit 4 is mounted in the case body 1. After being placed, the extension cords extending from the sockets 9 and 9 are connected to the extension cords of the ballast 12 and the glow lamp 13 via connectors. Further, the ballast 12 is connected to a breaker 24 installed at an appropriate place in the case body 1 via an extension cord.

Next, the procedure for installing the main sign will be described with reference to FIG. The sign used in this work procedure is
The case body 1 is designed to be embedded in the wall of the structure. (A) First, the case body 1 is mounted on the wall surface of the structure. (B) Next, the discharge control unit 16 and the spacer 14 are placed on the bottom M in the case body 1, and the discharge control unit 16 and the breaker 24 are connected by an extension cord. (C) Finally, the light emitting unit 4 is placed on the top surface side of the spacer 14, the light emitting unit 4 is connected to the discharge control unit 16 by an extension cord, and the mounting bracket 7 of the light emitting unit 4 is connected to the case. The body 1 is screwed to the door stop piece 17. Through such an operation procedure, a plurality of fluorescent tubes 11 can be all mounted in the case body 1 in one step, and inspection of a signboard and replacement of a device related to light emission of the fluorescent tube 11 can be performed. Also in this case, since the fluorescent tube 11 and other devices can be easily taken out of the case body 1, work efficiency can be improved.

The above-described operation procedure of the present signboard can be applied to the case where an existing signboard is modified. In this case, the old fluorescent tube and the socket attached to the case body of the existing signboard are removed, and the newly prepared discharge control unit 16 and spacer 14 are mounted on the bottom of the existing case body in the same manner as the above-described operation procedure. And the light emitting unit 4 is formed so as to be mountable. Then, if the light emitting unit 4 is mounted on the top surface of the spacer 14 and the light emitting unit 4 is screwed to the door stop piece of the existing case body via the mounting bracket 7, the light emitting unit 4 is provided in the same manner as the newly installed signboard. Thus, a signboard having a good display state without light emission unevenness is formed.

[0018]

According to the present invention, by attaching and detaching a plurality of fluorescent tubes in a unit type, all the fluorescent tubes and devices related to light emission of the fluorescent tubes can be attached to or removed from the case in one process. This makes it possible to easily inspect the signboard and replace the fluorescent tube and a device related to light emission of the fluorescent tube. Also, when renovating an existing signboard, it is not necessary to adjust the arrangement of the fluorescent tube, the light diffusion plate, and the display object on site, thereby significantly improving work efficiency and shortening the construction period. In addition, since the existing case body can be used as it is, the cost for repairing the signboard can be significantly reduced.

[Brief description of the drawings]

FIG. 1A is a front view showing a typical embodiment of the present invention, and FIG.

FIG. 2 is a wiring diagram of FIG.

FIG. 3 is an explanatory view showing a work procedure of the signboard of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case body 2 Opening / closing door 3 Window part 4 Light emitting unit 5 Light diffusing means 7 Mounting bracket (mounting means) 11 Fluorescent tube 15 Board

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G09F 13/04

Claims (1)

(57) [Claims] 1. A case body (1) having an opening / closing door (2) with a window (3) capable of displaying a display object on the front side thereof,
A signboard in which a plurality of fluorescent tubes (11) are arranged and a light diffusing means (5) is interposed between the display object and each of the fluorescent tubes (11). A fluorescent tube (11) is placed on a substrate (15) having a light reflecting surface of the same size.
And a light emitting unit (4) in which a light diffusing means (5) is arranged on the front side of each of the fluorescent tubes (11) is formed, and the light emitting unit (4) is disposed in the case body (1). A signboard characterized by being detachably fixed at a position facing the window (3) via a mounting means (7).