JP3137486U - Illuminated signboard - Google Patents

Abstract

To provide an electric signboard having no light emission spots while using a light emitting diode as a light emitting component.
A window 3 is provided on the front surface of a housing 2, a light transmitting plate 5 is provided on the back surface of the window inside the housing, and a lighting device 15 and a light reflecting plate 16 are provided on the back surface side of the light transmitting plate. In the electric signboard 1 that illuminates the back side of the display object 4 to be posted on the front side of the light transmission plate, the lighting equipment includes a light emitting unit 20 in which a light source module 18 is connected by a wiring 19. The light source module is a block having a stepped shape with a smaller front part than the back part, the front part of the block is constituted by a light diffusion lens 22, and a circuit board 24 in which a light emitting diode 23 is incorporated in the back part of the block. The light source modules are scattered over the entire area of the window, a light reflecting plate is disposed on the front side of the lighting device, and a projection hole 35 is formed in the light reflecting plate at a location corresponding to the light source module. The light diffusion lens protrudes from the hole to the front side. And, a wire 19, for concealing the rear side of the light reflection plate.
[Selection] Figure 2

Description

  The present invention relates to an electric signboard that emits light behind the display object in order to make the display object such as a picture and a photograph look good.

A conventional electric signboard is known in which a lighting device is arranged behind a display object and a fluorescent lamp is used as a light-emitting component of the lighting device. The front of the outer box is provided with an opening / closing door with a window for accommodating display objects such as pictures and photographs, and the light reflecting plate disposed on the back side of the outer box is used to transmit the light from the fluorescent lamp over the entire rear surface of the display object. (Patent Document 1).
JP-A-2005-283787

  However, when a fluorescent lamp is used, even if light is diffused and reflected over a wide area by a light reflector, lightness and shade called light emission spots tend to appear. This is because, for example, a plurality of fluorescent lamps are arranged vertically or horizontally with respect to a rectangular display object, and the distance between the display object and the fluorescent lamp is reduced in order to make the product compact. Cause. However, if the number of fluorescent lamps is increased, the electricity charge will increase, and if there is sufficient space between the display and the fluorescent lamp, the outer box will become thicker (the product will become larger) and the product value will be increased. Decrease.

  Therefore, the present inventor has come up with the idea of using light emitting diodes as light emitting components instead of fluorescent lamps in order to reduce power consumption. Even if a large number of light emitting diodes are used, the power consumption is less than that of fluorescent lamps, and if many light emitting diodes are scattered, the occurrence of light emission spots can be minimized. . And he came up with the idea of using Shining Eye (L), a brand name manufactured and sold by Konami Co., Ltd. (head office: 2-6-8 Mukaiyama, Nerima-ku, Tokyo) (Details in the best mode for carrying out the invention) To explain).

By the way, as a product using shining eye (L), a large number of shining eyes (L) are scattered and fixed on the front of the light reflecting plate, and a milky white acrylic plate is spaced in front of the shining eye (L). A signboard that is arranged and reflects light toward an acrylic plate by a light reflecting plate is known (Non-Patent Document 1).
Mitsunami Co., Ltd. [Search August 25, 2006], Internet <URL: http://www.koha.co.jp/products/appli/14.html>

  However, since many shining eyes (L) are connected by wiring, no reflection of light can be obtained at the wiring part, which causes light emission spots on the acrylic plate.

  The present invention was created in view of the above circumstances, and an object of the present invention is to provide an electric signboard having no light emission spots while using a light emitting diode as a light emitting component.

  The present invention is provided with a window on the front surface of the housing, a light transmitting plate is provided on the back surface of the window inside the housing, and the lighting device and the light from the lighting device are disposed on the back surface of the light transmitting plate. It is premised on an electric signboard that includes a light reflecting plate that reflects to the side, and illuminates the back side of a display object posted on the front side of the light transmitting plate through the light transmitting plate.

  And what is equipped with the light emission unit which connected many light source modules by wiring is used for lighting equipment. The light source module as a whole is a block having a stepped shape with a small front part compared to the back part, and the front part of the block is composed of a light diffusion lens, and a circuit board in which a light emitting diode is incorporated on the back part of the block. It is to be prepared. Then, a large number of light source modules are scattered over the entire area of the window, and a light reflecting plate is disposed on the front side of the lighting device. The light reflecting plate has protrusion holes at locations corresponding to the light source modules. The light diffusion lens of the light source module protrudes from the front hole to the front side, and the wiring for connecting the light source module is concealed on the back side of the light reflecting plate.

  In the present invention, since the wiring is hidden on the back side by the light reflecting plate, the light from the light diffusing lens is reflected not only in front of the light diffusing lens but also to the surroundings by the light reflecting plate. Are scattered over the entire area of the window, so that the entire surface of the display object is evenly illuminated through the light transmission plate, so that the light emission spots are eliminated and the aesthetic appearance is excellent. Moreover, by dispersing the light source modules over the entire area of the window, the thickness of the housing can be reduced while eliminating light emission spots, and as a result, the commercial value is improved.

  As shown in FIGS. 1 to 3, the electric signboard 1 is provided so that the front side of a thin box-shaped housing 2 can be opened and closed, a window 3 for displaying a display object is opened in front of the housing 2, and the housing 2 Is provided on the back side of the window 3 with a light-transmitting plate 5 for displaying a film-like display object 4. The light transmitting plate 5 is provided on the back side of the light-transmitting plate 5 inside the housing 2. A light emitting panel 6 that illuminates the entire area of the display object 4 through the plate 5 is provided.

  The housing 2 is formed by connecting a door 8 to the front of a box body 7 having a shallow bottom so that the door 8 can be rotated and opened. Specifically, one piece of the L-shaped hook F is fastened to the upper surface of the box body 7, and the other piece of the L-shaped hook F is bent toward the front side of the box body 7 with an interval. The other piece is passed through a hook hole H on the upper surface of the door 8, and the door 8 is connected to the door 8 so that the door 8 can be opened and closed with the hook F as a fulcrum. Although not shown, a locking device that holds the door 8 in a closed state is provided across the box body 7 and the door 8.

  The box body 7 has a rectangular shape, and the front end surface is a door stop surface 9.

  The door 8 has a rectangular frame 10 along the door contact surface 9 of the box body 7, the opening inside the frame 10 is a window 3, and the inside of the window 3 is a protective transparent plate (glass plate). 11 is plugged.

  The transparent plate 11 has an outer size that is slightly larger than the window 3, and a long and narrow fixing plate 12 is applied to the back side of the outer peripheral portion of the transparent plate 11 and fastened to the frame 10 with screws 13 or the like. An opaque (milky white) light transmissive plate 5 is disposed on the back side of the transparent plate 11 with a gap therebetween, and a film-like display object 4 such as a poster is disposed in the gap between the transparent plate 11 and the light transmissive plate 5.

  The light transmission plate 5 has an outer size that is slightly larger than the window 3 and is connected to the frame 10 so as to be openable and closable. The connection structure of the frame 10 and the light transmission plate 5 is a connection structure in which the light transmission plate 5 is bound like a booklet with respect to the transparent plate 11 fastened to the frame 10. The other piece of the hinge 14 is fastened to the fixed plate 12 on the light transmission plate 5. Since the connection portion by the hinge 14 is the upper part of the housing 2, when the door 8 is closed, the light transmission plate 5 hangs down by its own weight (becomes a vertical state), and the transparent plate 11 and the light transmission plate 5 are spaced from each other. Open and kept parallel. And the display thing 4 arrange | positioned in the clearance gap is fixed by a certain means. Specifically, the edge of the display object 4 is fastened and held on the edge of the light transmission plate 5 by, for example, a double-sided adhesive tape.

  As shown in FIGS. 2 to 4, the light emitting panel 6 is fixed to the back of the box body 7 and illuminates the entire opening area of the window 3 on the back side of the light transmission plate 5. The light emitting panel 6 includes a lighting device 15 that illuminates the display object 4 from the back side through the light transmission plate 5, and reflects the light from the lighting device 15 to the front side so that the back side of the display object 4 passes through the light transmission plate 5. The light reflecting plate 16 that illuminates, and the lighting device 15 and the support plate 17 that fastens the light reflecting plate 16 are configured, and the three parties are integrated.

  As shown in FIGS. 4 and 5, the lighting device 15 includes a light source unit 20 in which a large number of light source modules 18 are connected by wirings 19, and a power source 21 that causes the light source unit 20 to emit light is applied to the box body 7. Built-in. For the light source module 18, for example, trade name Shining Eye (L) manufactured and sold by Konami Co., Ltd. (head office: 2-6-8 Mukaiyama, Nerima-ku, Tokyo) is used.

  As shown in FIG. 6 or FIG. 7, the light source module 18 is a block having a stepped shape with a smaller front part than the rear part as a whole, and the front part of the block is composed of a light diffusion lens 22, and the rear part of the block. Is provided with a circuit board 24 in which a light emitting diode 23 is incorporated. The one-dot chain line in FIG. 7 is an imaginary line.

  The light diffusing lens 22 on the front side of the block diffuses the light from the light emitting diode 23 on the back side not only on the front side but also on the side and the oblique back side, and the illuminance of the light toward the front side is directed to the side and the oblique back side. It is weaker than the light. Specifically, it is a concave lens having a disk shape with a flat front outer peripheral portion and a recessed central portion, and the recessed shape is a trumpet shape.

  The circuit board 24 is placed on the central portion of the holding base 25, and the block back surface portion is covered with the transparent material 26 so that the surface side and side surface of the base 25 are slightly larger than the circuit board 24 and the central portion of the width is covered with a thick wall. It is. As a result, the end of the wiring 19 connected to the circuit board 24 is covered with the transparent material 26, and the thick portion of the transparent material 26 becomes the light diffusion lens 22. Further, the block rear surface portion is rectangular as a whole, and the first protrusion 27 and the second protrusion 28 protrude outwardly from the rear surface side portion of the entire thickness at the four corner portions of the two opposite sides. . Of the two opposing sides, the one protruding from one side is referred to as a first protrusion 27, and the one protruding from the other side is referred to as a second protrusion 28.

  As shown in FIG. 5 or FIG. 8, the support plate 17 holds a large number of light source modules 18 uniformly distributed over the entire surface. The first stopper piece 29 and the second stopper piece 30 are formed by punching the periphery. The first stopper piece 29 holds the two first protrusions 27 on one side of the block from the side and the front. The second stopper piece 30 similarly holds one second protrusion 28 on the other piece side from the side and front. The first stopper piece 29 is formed by projecting the first small pieces 31, 31 holding the two first protrusions 27, 27 on both sides, and the surrounding punching shape is a C-shape with a square shape. On the other hand, the second stopper piece 30 has a half shape on one side of the first stopper piece 29, and a second small piece 32 that suppresses only one second protrusion 28 protrudes on one side. The first and second stopper pieces 29 and 30 are provided with a hole 33 on the base side for easy folding. The support plate 17 is a rectangular metal plate, and on each of its four sides, a connecting piece 34 to the light reflecting plate 16 protrudes outward, and in the drawing, two folding lines are formed along the base end of the connecting piece 34. It is indicated by a dotted line.

  When the punched support plate 17 is used as shown in FIG. 9 (a), before the light source module 18 is fastened, the connection piece 36 is left with the support plate 17 lying in advance as shown in FIG. 9 (b). The first stopper piece 29 is raised vertically with the base end as a fulcrum, and the second stopper piece 30 is inclined obliquely outward with the base end as a fulcrum. Then, while pressing the back side of the light source module 18 against the support plate 17 as shown in FIG. 9C, the first protrusion 27 of the light source module 18 is moved under the first small piece 31 of the raised first stopper piece 29. To go through. Then, the light source module 18 is positioned, and the second stopper piece 30 that is inclined to the side of the second protrusion 28 of the light source module 18 is just positioned. Therefore, as shown in FIG. Is raised vertically. From the above procedure, the light source module 18 presses the back surface against the support plate 17, holds the side surfaces thereof with the first and second stopper pieces 29, 30, and further, three of the four corners of the front surface are the first and first. It becomes a form held by the two small pieces 31 and 32 and is integrated with the support plate 17.

  As shown in FIG. 2, FIG. 3, or FIG. 10, the light reflecting plate 16 reflects light to the front side (front side), and diffuses light at a location corresponding to the light source module 18 positioned on the support plate 17. A projection hole 35 for the lens 22 is formed in a circular shape that is slightly larger than the light diffusion lens 22. Further, the light reflecting plate 16 is a rectangular metal plate, and a connecting piece 36 protrudes outward around each side, like the support plate 17. Incidentally, the light reflector 16 uses, for example, a product name FUSCOAT CRYSTAL sold by Furukawa Sky Co., Ltd. (head office: 4-1-1 Sotokanda, Chiyoda-ku, Tokyo). This is to cover the surface of an aluminum or aluminum alloy plate with a resin film serving as a light reflecting surface.

  In order to integrate the light reflecting plate 16 and the support plate 17 to which the light emitting unit 20 is assembled, the connecting piece 36 of the light reflecting plate 16 is bent back with the base end as a fulcrum, and the light reflecting plate 16 protrudes. The light diffusing lens 22 of the light source module 18 protrudes from the front hole 35 to the front side, the connecting piece 36 of the light reflecting plate 16 and the connecting piece 34 of the support plate 17 are overlapped, and an appropriate overlapped portion is fastened with a screw or the like. . From the above, the light emitting panel 6 in which the three members of the light reflecting plate 16, the light emitting unit 20, and the support plate 17 are integrated is completed.

  When the light emitting panel 6 is fixed to the inner part of the box body 7, as shown in FIGS. 2 to 4, a bracket 38 that bends stepwise with respect to the back plate 37 of the box body 7 is provided. Secure with a gap along the circumference. Since the bracket 38 protrudes from the back plate 37 to the front side, the tip piece of the holding plate 39 that is bent symmetrically with the bracket 38 is fastened to the tip piece on the front side with a screw or the like. The outer peripheral part of the light reflecting plate 16 is pressed against the inner part of the box body 7 at the back surface of the pressing plate 39. Further, the light emitting panel 6 has a fixing hole penetrating from the light reflecting plate 16 to the support plate 17 at an appropriate place, and by fixing the fixing hole to the back plate 37 of the box body 7 with a screw 40 or the like, It is a secure installation.

  As a comparative product showing the performance of the product of the present invention, there was prepared a device in which the projection hole 35 of the light reflecting plate 16 was eliminated and the light reflecting plate 16 was arranged on the back surface of the light source module 18 instead of the support plate 17. From the experimental results, it was found that the illuminance to the light transmission plate 5 was improved by about 30 percent in the inventive product compared to the comparative product.

  When the above-mentioned electric signboard 1 is enlarged, when the light source module 18 is turned on and viewed from the front, the trace of the light diffusion lens 22 may appear in a patch pattern on the back side of the display object 4 such as a poster. . This occurs because the light transmitting plate 5 cannot be bent and maintain a flat shape due to low rigidity, and the distance between the light transmitting plate 5 and the light diffusion lens 22 is narrowed. The following second example eliminates such inconvenience.

  As shown in FIGS. 11 and 12, the second example of the electric signboard 1 is a plurality of L-shaped transparent anti-wrinkle prevention devices 41 scattered on the surface side of the light reflection plate 16 and fixed with screws 42 or the like. The back surface of the light transmission plate 5 is held at several intervals with a plurality of anti-slipping tools 41 to prevent the light transmission plate 5 from trying to bend toward the light diffusion lens 22. The space between the light diffusing lenses 22 is sufficiently maintained so that the light diffusing lens 22 does not appear on the back side of the display object 4.

It is a front view of an electrical decoration signboard. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is a front view which shows the state which removed the door from the housing | casing. It is a partially expanded plan view which shows the state which assembled | attached the light source module to the support plate. FIGS. 4A to 4D are a plan view, a front view, an AA line enlarged sectional view, and a BB line enlarged sectional view showing a light source module. It is a top view which shows the relationship etc. of a light emitting diode and a circuit board. It is a partially expanded plan view which shows a support plate. FIGS. 4A to 4D are work process diagrams showing the assembled state of the light source module to the support plate. It is a top view of a light reflection board. It is sectional drawing which shows the 2nd example of an electrical decoration signboard. It is a front view which is the 2nd example of an electrical decoration signboard, Comprising: The state which removed the door from the housing | casing.

Explanation of symbols

1 electric decoration signboard, 2 housings, 3 windows, 4 displays, 5 light transmission plates, 6 light emitting panels, 7 box bodies, 8 doors,
9-door surface, 10 frames, 11 transparent plates, 12 fixed plates, 13 screws, 14 hinges, 15 lighting equipment,
16 light reflectors, 17 support plates, 18 light source modules, 19 wires, 20 light emitting units,
21 power supply, 22 light diffusion lens, 23 light emitting diode, 24 circuit board, 25 base,
26 transparent material, 27 first protrusion, 28 second protrusion, 29 first stopper piece,
30 second stopper piece, 31 first small piece, 32 second small piece, 33 punched hole, 34 connecting piece,
35 projecting hole, 36 connecting piece, 37 back plate, 38 bracket, 39 presser plate, 40 screw,
41 anti-slipping tool, 42 screws, F hook, H hook hole

Claims (1)

A window (3) is provided on the front surface of the housing (2), and a light transmitting plate (5) is provided on the back surface of the window (3) inside the housing (2), and the back side of the light transmitting plate (5). Includes a lighting device (15) and a light reflecting plate (16) that reflects light from the lighting device (15) to the front side, and a display object to be posted on the front side of the light transmission plate (5). In the electric signboard (1) that illuminates the back side of (4) through the light transmission plate (5),
As the lighting device (15), a device including a light emitting unit (20) in which a number of light source modules (18) are connected by wiring (19) is used.
The light source module (18) as a whole is a step-shaped block whose front portion is smaller than the back portion, and the front portion of the block is configured by a light diffusion lens (22), and a light emitting diode (22) is placed on the back portion of the block. 23) comprising a circuit board (24) incorporated therein,
A number of light source modules (18) are scattered over the entire area of the window (3), and a light reflecting plate (16) is disposed on the front side of the lighting device (15). A projection hole (35) is formed at a location corresponding to the module (18), the light diffusion lens (22) of the light source module (18) is projected from the projection hole (35) to the front side, and the light source module (18) is connected. An electrical signboard, wherein the wiring (19) to be hidden is concealed on the back side of the light reflector (16).

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