JP2011221375A - Signboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signboard that can illuminate in its entirety efficiently with a small number of light-emitting devices.SOLUTION: A signboard comprises a signboard body 1 having a hollow cross section, and a lighting unit 2. The signboard body 1 has a transparent concave portion 3 for arranging the lighting unit 2 on the backside of the signboard body, and a light reflection portion 4 on the backside except the concave portion 3. The illumination unit 2 is provided with a plurality of light-emitting devices 5a, 5b, and 5c. Irradiation light 8 from the light-emitting devices of the illumination unit 2 is reflected by the light reflection portion 4 of the signboard body to illuminate the front face of the signboard body 1 with the reflected light 9 and 10.

Description

  The present invention relates to a signboard illuminated by a light source provided on the back side.

As a signboard for a convenience store, Patent Document 1 describes a signboard body having a hollow cross section formed of a synthetic resin and provided with a recessed portion on the back side and housing a thin light source module for illumination in the recessed portion. As a thin light source module for illumination, a large number of LED chips are arranged side by side on the bottom surface of a shallow box-like container evenly in the vertical and horizontal directions.
According to the structure described in Patent Document 1, a large number of LED chips are required to make a large signboard emit light on the entire surface, which increases the cost. Further, since the LED chip emits light only in a certain angle range toward the front, there is a disadvantage that the upper and lower parts of the signboard become dark.

JP 2009-63800 A

  An object of the present invention is to provide a signboard that can efficiently illuminate the entire signboard with a small number of light emitting elements.

  In order to achieve the above object, a signboard according to the first aspect of the present invention includes a signboard body having a hollow cross section and an illumination unit, and the signboard body has a transparent concave portion in which the illumination unit is disposed on the back surface. The lighting unit has a light reflecting portion on the back surface excluding the recessed portion, and the lighting unit includes a plurality of light emitting elements, and light emitted from the light emitting elements of the lighting unit is reflected by the light reflecting portion of the signboard body. The front surface of the main body is illuminated with reflected light.

  The signboard according to the invention of claim 2 is characterized in that, in addition to the configuration of the invention of claim 1, the light reflecting portion is inclined to the front side as it goes to the outer peripheral side from the vicinity of the recessed portion of the signboard body. To do.

  In addition to the configuration of the invention of claim 1 or 2, the signboard according to the invention of claim 3 is provided with a plurality of illumination units spaced apart in the longitudinal direction of the recessed portion, and the light emitting element is recessed in each illumination unit. The light emitting elements at the ends in the longitudinal direction are arranged to be inclined outward with respect to the direction orthogonal to the longitudinal direction of the recessed portion.

  The signboard according to the invention of claim 4 is characterized in that, in addition to the configuration of the invention of claim 1, 2, or 3, the arrangement density of the light emitting elements of the illumination unit is larger at the longitudinal end than at the longitudinal center. And

  The signboard according to the invention of claim 5 is characterized in that, in addition to the configuration of the invention of claim 1, 2, 3 or 4, the illumination unit has a light diffusion part on the front side.

  The signboard according to the invention of claim 6 is characterized in that, in addition to the structure of the invention of claim 1, 2, 3, 4 or 5, the illumination unit is characterized in that the light emitting element is inclined to the back side. To do.

  The signboard according to the invention described in claim 7 is the outer periphery of the signboard body in which the illumination unit can reflect and transmit the light emitted from the light emitting element, in addition to the configuration of the invention according to claim 1, 2, 3, 4, 5 or 6. It has a light reflection / transmission member opened toward the side.

  In addition to the structure of the invention according to claim 1, 2, 3, 4 or 5, the sign unit according to the invention of claim 8 is provided with an even number of rows of lighting units in a direction perpendicular to the longitudinal direction of the recessed portion. Yes, the odd-numbered rows of light emitting elements are tilted and attached to one side in the direction perpendicular to the longitudinal direction of the front-side recessed portion, and the even-numbered rows of light-emitting elements are perpendicular to the longitudinal direction of the front-side recessed portion. It is characterized in that it is attached to the other side of this.

  The signboard according to the ninth aspect of the invention is characterized in that, in addition to the configuration of the invention according to the eighth aspect, the number of light emitting elements in the middle row is smaller than the number of light emitting elements in the opposite row.

  The signboard according to the invention of claim 1 has a transparent recessed portion in which the illumination unit is disposed on the back surface of the signboard body, and has a light reflecting portion on the back surface excluding the recessed portion. Since the light emitting element is arranged, the irradiation light of the light emitting element of the lighting unit is reflected by the light reflecting part of the signboard body, and the front surface of the signboard body is illuminated with the reflected light. The front can be illuminated efficiently and uniformly. Further, since the lighting unit is only disposed in the recessed portion of the signboard body, the signboard can be easily installed and maintained. Since there is no need to provide an opening in the signboard body, rainwater, insects, etc. do not enter the signboard body.

  The sign according to the invention of claim 2 is such that the light reflecting portion is inclined to the front side as it goes from the vicinity of the recessed portion of the sign body to the outer peripheral side, so that the light reflected from the light emitting element is reflected by the light reflecting portion on the sign body. It can be efficiently reflected toward the front.

  The signboard according to the invention described in claim 3 can cope with a long signboard by providing a plurality of illumination units at intervals in the longitudinal direction of the recessed portion, and each light unit has a light emitting element of the recessed portion. It is arranged side by side in the longitudinal direction, and the light emitting elements at the longitudinal ends are inclined to the outside with respect to the direction perpendicular to the longitudinal direction of the recesses, so that the longitudinal end of the signboard body The lighting units can be illuminated evenly.

  The sign according to the invention of claim 4 is such that the arrangement density of the light emitting elements of the lighting unit is larger at the end in the longitudinal direction than at the center in the longitudinal direction, so that the light between the longitudinal end of the sign body and the lighting units The effect of preventing unevenness can be enhanced.

  The sign according to the invention of claim 5 has an effect of eliminating light unevenness on the front side of the signboard body because the light diffuser is provided on the front side of the illumination unit, so that light diffuses in the light diffusion part.

  In the signboard according to the sixth aspect of the present invention, since the light emitting element is inclined and arranged on the back side in the illumination unit, the light emitted from the light emitting element is more efficiently reflected by the reflecting plate. Is brighter and evenly illuminated.

  The signboard according to the invention of claim 7 has a light reflection / transmission member that is open toward the outer peripheral side of the signboard body through which the irradiation light of the light emitting element can be reflected and transmitted to the illumination unit, so that the front surface of the signboard body is uniform. In addition, the light emitted from the light emitting element can easily reach the outer periphery of the signboard body, and the outer periphery of the signboard body can also be illuminated.

  In the signboard according to the invention described in claim 8, the light emitting elements are provided in the lighting unit in even rows in the direction orthogonal to the longitudinal direction of the recessed portions, and the odd rows of light emitting elements are orthogonal to the longitudinal direction of the recessed portions on the front side. The light-emitting elements in the even-numbered rows are attached to the other side of the direction orthogonal to the longitudinal direction of the recessed portion on the front side, so that the irradiation light of the light-emitting elements and the sign body The front surface of the signboard body can be efficiently and uniformly illuminated by the reflected light reflected by the light reflecting portion on the back surface.

  In the sign according to the ninth aspect of the invention, the number of light emitting elements in the middle row is smaller than the number of light emitting devices in the row at both ends, so that the cost can be reduced while preventing uneven light.

It is AA sectional drawing of FIG. It is a front view which shows 1st Embodiment of the signboard of this invention. (A) is a front view of the illumination unit of 1st Embodiment, (b) is BB sectional drawing of (a), (c) is a bottom view of the illumination unit. It is a longitudinal cross-sectional view which shows 2nd Embodiment of the signboard of this invention. (A) is a front view of the illumination unit of 2nd Embodiment, (b) is CC sectional drawing of (a), (c) is a bottom view of the illumination unit. It is a figure which shows the light beam image of the illumination unit of 2nd Embodiment, Comprising: (a) has a light reflection part in the back surface of a signboard main body, (b) shows the case where there is no light reflection part in the back surface of a signboard main body. . It is a longitudinal cross-sectional view which shows 3rd Embodiment of the signboard of this invention. (A) is a front view of the illumination unit of 3rd Embodiment, (b) is DD sectional drawing of (a).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of a signboard of the present invention, and FIG. 3 shows an illumination unit used for the signboard. The signboard is installed at a position between the outer walls of a convenience store, and is formed of a resin plate and formed into a horizontally long hollow pillow shape, and a recessed portion provided on the back side of the signboard body 1 And a plurality of illumination units 2 installed in the interior. The signboard can be attached to and detached from two upper and lower rails 12a and 12b attached to the outer wall surface 11 and slidable in the left-right direction by suspension members 29a and 29b provided on the upper and lower sides of the signboard body 1. is set up.

  As shown in FIG. 1, the signboard body 1 is formed by joining a front plate 13 and a back plate 14. The front plate 13 is made of a milky white translucent resin plate, has a raised pattern 15 formed in a horizontal stripe shape on the front portion, and is decorated with a color sheet 16 on its surface. The back plate 14 is made of a transparent resin plate, and has a concave portion 3 that is recessed in an arcuate groove shape in the central portion in the vertical direction. A light reflecting portion 4 is provided on a portion of the inner surface of the back plate 14 excluding the recessed portion 3 by applying a white paint by printing. The light reflecting portion 4 is inclined to the front side as it goes upward and downward from the vicinity of the recessed portion 3. Further, the light reflecting portion 4 has a rough matte surface, and the light hitting the light reflecting portion 4 is diffusely reflected in a random direction on the front side.

As shown in FIG. 3, the lighting unit 2 includes a bottom case 17 formed of a white resin and a cover 18 formed of a transparent resin, which are joined by screws 19 to form a waterproof case. An LED mounting plate 20 formed of a milky white translucent resin plate is disposed on the front side. The front part of the cover 18 has a textured texture 6.
The LED mounting plate 20 has LED substrates 21a, 21b, and 21c arranged in the left and right direction on the back side and mounted in two rows in the upper and lower directions, and a plurality of LEDs 5a, 5b, and 5c are spaced in the left and right direction on each LED substrate 21a, 21b, and 21c. It is provided. The LED substrates 21a, 21b, and 21c attached on the upper side are inclined downward as shown in FIG. 3B, and light is irradiated obliquely upward on the back side from the LEDs 5a, 5b, and 5c. The LED boards 21a, 21b, and 21c attached to the lower side are inclined upward, and light is irradiated obliquely downward on the back side from the LEDs 5a, 5b, and 5c. Further, as shown in FIG. 3 (a), the LED boards 21a and 21b positioned on the left and right ends are inclined with respect to the left and right directions, and the LED boards 21a and 21b are disposed on the LED boards 21a and 21b. Light is irradiated from the attached LEDs 5a and 5b by tilting outward in the vertical direction. Further, as shown in FIG. 3 (c), two rows of LEDs 5a are arranged in the front-rear direction on the LED boards 21a located at both ends in the left-right direction, and therefore, more toward the end side than the central part in the left-right direction. However, the arrangement density of the LEDs is increased.
A reflective plate 28 is arranged along the light emitted from the LEDs 5a, 5b, 5c at the position on the back side of the LEDs 5a, 5b, 5c in the case. The reflective plate 28 together with the LED mounting plate 20 has the LED 5a, It acts as a mirror for allowing the light from 5b and 5c to reach farther. A power supply circuit 22 is provided in the bottom case 17, and a cable 23 extends from the power supply circuit 22 to the left and right. By connecting the cable 23 to an outlet, each LED 5 a, 5 b, 5 c emits light, and the entire periphery of the lighting unit 2. Is irradiated with light. As shown in FIG. 1, the illumination unit 2 is fixed in the recessed portion 3 of the illumination body 1 by a mounting plate 24 installed on the back surface. As shown in FIG. 2, the plurality of lighting units 2, 2,... Are provided at intervals along the longitudinal direction of the recessed portion 3, and the cables 23 of the adjacent lighting units 2, 2 are connected by a connector 25. It is.

  As described above, as shown in FIG. 1, this signboard is irradiated with light 8 from the LEDs 5a, 5b, 5c arranged in the left-right direction in the lighting unit 2 upward and downward and slightly inclined to the back side. In addition, the light reflecting portion 4 which is disposed on the back side of the signboard body 1 at an angle to the front side diffuses and reflects the irradiation light 8 of the LEDs 5a, 5b and 5c. Illuminated uniformly. Since the front plate 13 of the signboard main body 1 is formed of a milky white translucent resin plate, the irradiation light 8 of the LED and the light 9 reflected by the light reflecting portion 4 are transmitted through the front plate 13 and some percent are positive. Since the reflected light 10 is reflected by the inner surface of the face plate 13 and is further diffusely reflected by the light reflecting portion 4 on the back surface of the signboard body 1 and the front portion of the cover 18 subjected to the graining 6 of the lighting unit 2 and the LED mounting plate 20, The front plate 13 of the signboard body 1 emits light uniformly. Further, the LED 5a, 5b at the end is inclined to the side and disposed more than the center so as to irradiate the light 8 diagonally from the longitudinal end of the lighting unit 2, so that the sign body The left and right sides of 1 and the area between the lighting units 2 can be illuminated evenly. In this way, the number of LEDs is markedly higher than when LEDs are arranged in the front direction by irradiating the light 8 of the LEDs 5a, 5b, 5c upward and downward and diffusing and reflecting the light 8 on the back of the signboard body 1. Therefore, the manufacturing cost and the running cost can be suppressed, and the front surface of the signboard body 1 can be efficiently illuminated uniformly with a small number of LEDs. In addition, since the pre-assembled illumination unit 2 is only disposed in the recessed portion 3 of the signboard body 1, the signboard can be easily installed and maintained. Furthermore, since it is not necessary to provide an opening in the signboard body 1, rainwater, insects, etc. do not enter the signboard body 1.

FIG. 4 shows a second embodiment of the signboard of the present invention, and FIG. 5 shows the lighting unit 2 of this signboard. The signboard body 1 has the same structure as that of the first embodiment, and the structure of the lighting unit 2 is different from that of the first embodiment. As shown in FIG. 5, the lighting unit 2 includes a transparent cover 18 and a bottom case 17, and a plurality of LEDs 5 a, 5 b, 5 c are provided in two rows in the upper and lower sides at intervals in the left-right direction. is there. The upper rows of LEDs 5a, 5b, and 5c emit light upward, and the lower rows of LEDs 5a, 5b, and 5c emit light downward. As shown to Fig.5 (a), LED5a, 5b located in the edge part side of the left-right direction is inclined and arrange | positioned outside with respect to the up-down direction, and the angle which inclines becomes large as it goes to the left-right both ends. . Moreover, the space | interval of LED5a, 5b, 5c is narrower in the end part side than the center part of the left-right direction.
In the case, two light reflection / transmission members 7 made of a white translucent resin are provided so as to surround the LEDs 5a, 5b, 5c. The light reflection / transmission member 7 is opened in a U-shape extending upward and downward. The front portion of the cover 18 has a curved shape, and a satin finish 6 is applied to the surface thereof.

  Even when the above-described illumination unit 2 is used, as shown in FIG. 4, the light 8 of the LEDs 5 a, 5 b, 5 c irradiated upward and downward is diffusely reflected by the light reflecting portion 4 on the back side of the signboard body 1, As in the first embodiment, the front side of the sign body 1 can be efficiently and uniformly illuminated by the reflected lights 9 and 10 with a small number of LEDs 5a, 5b and 5c. FIG. 6 is a comparison of light flux images obtained by the illumination unit 2 of the second embodiment with and without the light reflecting portion 4. By providing the light reflecting portion 4, the light flux 27 extends in the vertical direction and the front side. Can also be confirmed. This is the same for the first embodiment. Furthermore, by providing the light reflection / transmission member 7 that is expanded upward and downward so as to surround the LEDs 5a, 5b, and 5c, the upper and lower sides of the illumination unit 2 can be illuminated more brightly, and the front surface of the cover 18 can be illuminated. The front side of the illumination unit 2 is also irradiated with the light from the LEDs 5a, 5b, and 5c in combination with the embossing 6 of the portion.

  FIG. 7 shows a third embodiment of the signboard of the present invention, and FIG. 8 shows the lighting unit 2 of this signboard. The signboard body 1 has the same structure as that of the first embodiment, and the structure of the lighting unit 2 is different from that of the first embodiment. As shown in FIG. 8, the lighting unit 2 has two upper and lower mountain-shaped LED mounting plates 26 protruding in the front side in the case, and the LEDs 5d, 5e, 5f, and 5g are arranged in the horizontal direction on the LED mounting plate 26. The LEDs 5d and 5f in the first and third rows from the top irradiate light obliquely upward on the front side, and the LEDs 5e and 5g in the second and fourth rows from the top. Irradiates light obliquely downward on the front side. The LEDs 5e and 5f in the second and third rows from the top have a smaller number than the first and fourth rows because the ranges of the irradiation light overlap. In addition, the LEDs 5d, 5e, 5f, and 5g in each row are tilted outward in the left-right direction with respect to the vertical direction, and the distance between the LEDs is closer to the end side than the center in the left-right direction. Is narrower.

  When the above-described lighting unit 2 is used, as shown in FIG. 7, the front side of the signboard body 1 is directly illuminated by the irradiation light 8 of the LEDs 5d, 5e, 5f, and 5g, and the light reflecting portion 4 on the backside of the signboard body 1 is used. Since the front surface of the signboard body 1 is illuminated by the diffusely reflected light 9, as in the first and second embodiments, the front face of the signboard body 1 is efficiently and uniformly illuminated with a small number of LEDs 5d, 5e, 5f, and 5g. Can do.

  The present invention is not limited to the embodiments described above. The form of the signboard body 1 is arbitrary, and may be square or long in the vertical direction. When the width of the signboard body 1 is wide, a plurality of recessed portions 3 can be formed on the back side at intervals in the width direction, and the illumination unit 2 can be disposed in each recessed portion 3. The recessed portion 3 is not continuous in the longitudinal direction of the sign body 1 and can be formed independently for each lighting unit 2. The light reflecting portion 4 of the signboard body 1 can also be formed by attaching a reflecting plate to the outer surface of the back plate 14. The arrangement and orientation of the LEDs 5a, 5b,... Of the illumination unit 2 can be changed as appropriate according to the size and shape of the signboard body 1. Moreover, the illumination unit 2 can use organic EL, inorganic EL, etc. other than LED as a light emitting element. The signboard of the present invention can be installed not only on a wall but also supported by a support or the like, or it can be installed back to back so that both front and back sides emit light.

DESCRIPTION OF SYMBOLS 1 Signboard body 2 Illumination unit 3 Recessed part 4 Light reflection part 5a, 5b, 5c, 5d, 5e, 5f, 5g LED (light emitting element)
6 Wrinkle processing (light diffusion part)
7 Light reflecting / transmitting member 8 LED irradiation light 9, 10 Reflected light

Claims (9)

  A signboard body having a hollow cross section and an illumination unit, the signboard body has a transparent recessed portion in which the illumination unit is disposed on the back surface, and a light reflecting portion on the back surface excluding the recessed portion, A signboard, wherein a plurality of light emitting elements are arranged, light emitted from the light emitting elements of the illumination unit is reflected by a light reflecting portion of the signboard body, and the front surface of the signboard body is illuminated with reflected light.   The signboard according to claim 1, wherein the light reflecting portion is inclined toward the front side from the vicinity of the recessed portion of the signboard body toward the outer peripheral side.   A plurality of illumination units are provided at intervals in the longitudinal direction of the recessed portion, and the light emitting elements are arranged in each illumination unit in the longitudinal direction of the recessed portion, and the light emitting elements at the end portions in the longitudinal direction are arranged in the recessed portion. The signboard according to claim 1 or 2, wherein the signboard is disposed to be inclined outward with respect to a direction orthogonal to the longitudinal direction.   The signboard according to claim 1, 2, or 3, wherein the arrangement density of the light emitting elements of the illumination unit is larger at the end portion in the longitudinal direction than at the central portion in the longitudinal direction.   The signboard according to claim 1, 2, 3, or 4, wherein the lighting unit has a light diffusion part on the front side.   6. The signboard according to claim 1, 2, 3, 4 or 5, wherein the lighting unit has a light emitting element disposed to be inclined to the back side.   The illumination unit has a light reflecting / transmitting member opened toward the outer peripheral side of the signboard body through which the light emitted from the light emitting element can be reflected and transmitted. The signboard described.   In the illumination unit, the light emitting elements are provided in even rows in a direction orthogonal to the longitudinal direction of the recessed portions, and the light emitting elements in the odd rows are inclined and attached to one side in the direction orthogonal to the longitudinal direction of the recessed portions on the front side. The signboard according to claim 1, 2, 3, 4 or 5, wherein the even-numbered light-emitting elements are attached to the other side in a direction perpendicular to the longitudinal direction of the concave portion on the front side.   The signboard according to claim 8, wherein the number of light emitting elements in the middle row is smaller than the number of light emitting elements in the row at both ends.

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