Light emission signboard

Abstract

To provide a light emission signboard of which a translucent panel is hard to come off, and which is high in safety even when installed outdoors or at a high place.SOLUTION: A light emission signboard of the present invention comprises: a main body 10 that has a forward opened; a light source that is provided inside of the main body 10; a translucent panel 20; and a front-framed frame 30. The main body 10 has: a rear wall part 12; a lateral wall part 14; and a panel fixation part 16 to which a screw 60 (a fixation member) penetrating through a peripheral vicinity part 20a of the translucent panel 20 is attached, in which a panel through-hole 20H is provided in the peripheral vicinity part 20a of the translucent panel 20. The screw 60 is configured to penetrate through the translucent panel 20, passing through a through-hole 50H provided in an elastic member 50 arranged within the panel through-hole 20H, and fix the translucent panel 20 to the panel fixation part 16 of the main body 10.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a light-emitting signboard, and more particularly to a light-emitting signboard that is installed outdoors or at a high place. [Background technology]

[0002] As a light-emitting signboard, as shown in Fig. 6, a box-shaped signboard 200 is known in which an opening of a box-shaped main body 72 having a light source 70 arranged at a bottom 72b is covered with an acrylic plate 74 which is a light-transmitting panel, a front frame 76 capable of covering the outer periphery of the acrylic plate 74 is placed on the main body, and the main body 72 and the front frame 76 are fixed. For example, Patent Document 1 describes a display device having a housing including a metal wall provided along the contour of a display object, a light-transmitting plate including the contour of the display object and mounted on an end of the wall, a frame surrounding the periphery of the light-transmitting plate and attaching the light-transmitting plate to the wall, and a plurality of solid-state light sources arranged inside the housing, and the end of the wall includes a corrugated portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-215434 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of a signboard as shown in Fig. 6, if the acrylic plate is screwed to the main body, the temperature change between morning and evening will cause thermal stress, which will place a load on the screwed parts in particular, making the acrylic plate prone to cracking. Therefore, in general, the acrylic plate is simply sandwiched between the main body and the front frame without being screwed. On the other hand, if such a signboard is installed outdoors, the acrylic plate may bend when exposed to wind from the front, and the repulsive force may cause the acrylic plate to come off the front frame. Conversely, on the downwind side, the difference between the internal and external pressures inside the signboard may push the acrylic plate out and cause it to come off the front frame, or the deformation of the acrylic plate may create a leverage principle on the screw parts that secure the front frame to the main body, generating a force that pulls out the screws. In consideration of these risks, the design is such that the width of the front frame that covers the outer periphery of the acrylic plate is made somewhat larger.

[0005] However, in recent years, as the size of signs increases, the width of the front frame covering the outer periphery of the acrylic plate is becoming narrower from the viewpoint of design. Considering the risk of the acrylic plate coming off the front frame, the width of the front frame covering the outer periphery of the acrylic plate should be as large as possible, which is contradictory. Therefore, even for large signs installed outdoors or at high places, there has been a demand for a highly safe luminous sign in which the width of the front frame covering the outer periphery of the acrylic plate is as small as possible and the translucent panel is not easily detached.

[0006] SUMMARY OF THE PRESENT DISCLOSURE ... In view of the above circumstances, an object of the present invention is to provide a luminous signboard having a light-transmitting panel which is unlikely to come off and which is highly safe even when installed outdoors or at a high place. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above problems, and as a result have found that the following invention meets the above object, thereby completing the present invention.

[0008] <1> a light-emitting signboard comprising: a main body having an opening at the front, the main body having a rear wall portion, a side wall portion, and a panel fixing portion to which a fixing member that penetrates the peripheral portion of the translucent panel is attached; a light source provided inside the main body; the translucent panel that is fixed to the panel fixing portion by the fixing member and emits light from the light source forward; and a front frame that covers the main body and has an edge portion that covers the peripheral portion of the translucent panel and a peripheral side wall portion formed from the edge portion along the side wall portion of the main body, wherein a panel through hole that penetrates in the front-to-rear direction is provided near the peripheral edge of the translucent panel, and the fixing member penetrates the translucent panel by passing through a through hole provided in an elastic member arranged within the panel through hole. <2> a reinforcing member having a first region bonded to the rear wall portion, a second region bonded to the side wall portion, and a third region bonded to the panel fixing portion, the reinforcing member being provided inside the main body, the fixing member penetrating from the translucent panel to the third region of the reinforcing member; <1> The luminous sign described in. <3> The elastic member has a generally truncated cone shape that expands in diameter toward the front. <1> or <2> The luminous sign described in. <4> The panel fixing portion is formed continuously or at a predetermined interval along the contour of the side wall portion, and is formed so as to extend from the inner surface of the side wall portion in a direction parallel to the rear wall portion. <1> from <3> 13. An illuminating signboard according to any one of the preceding claims. <5> The light-transmitting panel is made of resin. <1> from <4> 13. An illuminating signboard according to any one of the preceding claims. Effect of the Invention

[0009] According to the present invention, a luminous signboard is provided in which the light-transmitting panel is unlikely to come off, and which is highly safe even when installed outdoors or at a high place. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view of a light-emitting signboard according to an embodiment of the present invention; [Diagram 2]FIG. 2 is a diagram showing the luminous signboard of FIG. 1 disassembled into its individual components. [Diagram 3] FIG. 2 is a cross-sectional perspective view of a portion cut along line AA in FIG. [Figure 4] 2 is a diagram for explaining a fixing structure between a light-transmitting panel and a front frame, and a main body, in the light-emitting signboard of FIG. 1. FIG. [Diagram 5] 13 is a result of a simulation of the safety of the luminous signboard of the present invention. [Figure 6] FIG. 1 is a diagram for explaining the configuration of a conventional light-emitting signboard. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The following is a detailed description of an embodiment of the present invention, but the description of the constituent elements described below is an example of an embodiment of the present invention, and the present invention is not limited to the following description as long as it does not deviate from the gist of the present invention. Note that when the expression "~" is used in this specification, it is used as an expression including the numerical values ​​or physical property values ​​before and after it.

[0012] The present invention relates to a light-emitting signboard (sometimes referred to as "the light-emitting signboard of the present invention") comprising: a main body open at the front and having a rear wall portion, a side wall portion, and a panel fixing portion to which a fixing member that penetrates the vicinity of the periphery of the translucent panel is attached; a light source provided inside the main body; a translucent panel fixed to the panel fixing portion by the fixing member and emitting light from the light source forward; and a front frame that covers the main body and has an edge portion covering the vicinity of the periphery of the translucent panel and a peripheral side wall portion formed from the edge portion along the side wall portion of the main body, wherein a panel through hole that penetrates in the front-to-rear direction is provided near the periphery of the translucent panel, and the fixing member penetrates the translucent panel through a through hole provided in an elastic member arranged within the panel through hole.

[0013] In this way, the luminous signboard of the present invention has a panel through-hole that penetrates in the front-rear direction near the periphery of the translucent panel, and the fixing member penetrates the translucent panel through a through-hole provided in an elastic member arranged in the panel through-hole and fixes the translucent panel to the panel fixing portion of the main body, so that the elastic member prevents contact between the translucent panel and the fixing member and the fixing member can reduce the load on the translucent panel by the fixing member. This makes it possible to fix the translucent panel while preventing cracks from occurring in the translucent panel, so that even if the width of the edge of the front frame is narrow, the translucent panel is unlikely to come off, and the signboard can be highly safe even when set outdoors or at a high place.

[0014] Hereinafter, a light-emitting signboard 100 according to an embodiment of the present invention will be described with reference to Figs.

[0015] [Embodiment Mode] 1 and 2, the luminous signboard 100 is an internally illuminated signboard including a main body 10, a light source (not shown) provided inside the main body 10, a light-transmitting panel 20, and a front frame 30. The luminous signboard 100 is a large cylindrical signboard with an outer diameter of 1.5 m to 2 m and a thickness of 100 mm to 150 mm.

[0016] (Main body) As shown in Fig. 2, in the luminous signboard 100, the main body 10 is a generally cylindrical box with an opening at the front, and is composed of a rear wall 12, a side wall 14, and a panel fixing part 16. A reinforcing member 40 is attached inside the main body 10 at a position corresponding to the position where a screw 60 (see Fig. 3), which is a fixing member for fixing the light-transmitting panel 20, is attached. The main body 10 and the reinforcing member 40 are made of metal, and the material thereof is stainless steel, aluminum, or the like, but is not limited to these.

[0017] The rear wall 12 has a circular shape, and has a plurality of light sources (not shown) and a plurality of panel support rods (not shown). The panel support rod is a member that supports the light-transmitting panel 20 from the rear, and in this case is an acrylic rod-shaped member having a truncated cone shape with a front end that tapers forward. Also, a plurality of through holes (not shown) are provided for passing wiring for the light sources and anchors for mounting to a wall or the like.

[0018] The side wall portion 14 is a portion that defines the outline of the luminous signboard 100. As shown in Fig. 2, the side wall portion 14 has a cylindrical shape that extends forward from the periphery of the rear wall portion 12, and is attached to the rear wall portion 12 by welding. The side wall portion 14 also has through holes 14H formed at predetermined intervals, into which screws 62 (see Fig. 4) for fixing the front frame 30 are inserted.

[0019] 2, the panel fixing portion 16 is formed continuously along the front end of the side wall portion 14 (i.e., along the entire front end), has a ring shape when viewed from the front, and is sized so that when viewed from the front with the front frame 30 in place, it is completely or mostly hidden by the edge portion 32 of the front frame 30. Also, the panel fixing portion 16 is provided with a plurality of through holes 16H at predetermined intervals as through holes for screws.

[0020] The panel fixing portion 16 is a portion to which a screw 60 is attached, which penetrates the peripheral portion 20a of the light-transmitting panel 20. As shown in Figures 3 and 4, the through-hole 16H is a hole that penetrates the panel fixing portion 16 in the front-rear direction, and can be screwed into the screw 60 that penetrates the light-transmitting panel 20. The panel fixing portion 16 is formed to extend from the front end of the side wall portion 14 in a direction parallel to the rear wall portion 12, and supports the peripheral portion 20a of the light-transmitting panel 20 in surface contact.

[0021] (Reinforcing member) In the light-emitting signboard 100, as described above, the reinforcing member 40 is attached inside the main body 10. The reinforcing member 40 can reduce the load on the welded portion between the rear wall 12 and the side wall 14 when a positive pressure is generated in the light-transmitting panel. As shown in FIG. 4, the reinforcing member 40 is a rectangular parallelepiped box having a surface 40a (a first region in contact with the inner surface of the rear wall 12), a surface 40b (a second region in contact with the inner surface of the side wall 14), a surface 40c (a third region in contact with the inner surface of the panel fixing portion 16), a surface 40d, and a surface 40e, and is open toward the inside of the main body 10. The main body 10 is welded to the surfaces 40a, 40b, and 40c, and the main body 10 and the reinforcing member 40 are bonded to each other. Further, a through hole 40H is provided on the surface 40c so as to communicate with the through hole 16H, and a screw 60 can be passed through from the light-transmitting panel 20 to the surface 40c of the reinforcing member 40 and fastened together with the reinforcing member 40 adhered to the main body 10. This makes it possible to fix the light-transmitting panel 20 more firmly.

[0022] (light source) In the light-emitting signboard 100, a plurality of light sources (not shown) are arranged side by side on the rear wall portion 12 of the main body 10. The light sources are LED elements, and are turned on when power is supplied from a power cable (not shown).

[0023] (Translucent panel) In the light-emitting signboard 100, the light-transmitting panel 20 is a circular plate material having light-transmitting properties. The light-transmitting panel 20 emits light emitted from a light source (not shown) arranged on the rear wall portion 12 forward. A through hole 20H (panel through hole) penetrating in the front-rear direction is provided in the peripheral portion 20a of the light-transmitting panel 20. As shown in FIG. 2, the through hole 20H is provided at a position overlapping with the through hole 16H of the panel fixing portion 16 when the light-transmitting panel 20 is overlapped with the main body 10. Also, as shown in FIG. 3 and FIG. 4, the through hole 20H is substantially a truncated cone shape expanding toward the front, and the inner diameters of the through holes 20H on the front side and the rear side of the light-transmitting panel 20 are both larger than the inner diameter of the through hole 16H, and an elastic member 50 having a through hole 50H is arranged in the through hole 20H. The through-hole 20H may have any size and shape that allows the elastic member 50 to be housed therein, and may be in the shape of a cylinder, a polygonal column, a polygonal truncated pyramid, or the like.

[0024] The material of the light-transmitting panel 20 may be resin or glass. As described later, since the load from the screw 60 is mitigated by the elastic member 50, even if the light-transmitting panel 20 is made of resin such as an acrylic plate that is prone to cracking due to the load from screwing, it is possible to prevent cracking due to screwing. In addition, the light-transmitting panel 20 has the effect of diffusing light from an LED (light source), which is a point light source, and emitting the light from the entire panel, making it difficult to see it as a point light source. The light-transmitting panel 20 only needs to be able to emit light forward, and depending on the application, a milky white plate, a colored plate, a plate with a pattern, a plate with a picture, etc. can be used.

[0025] (Elastic material) 3 and 4, the elastic member 50 is a member disposed within the through-hole 20H, which prevents the light-transmitting panel 20 from coming into contact with the screw 60 and relieves the load on the light-transmitting panel 20 due to fixation by the screw 60. The elastic member 50 has a substantially truncated cone shape that expands in diameter toward the front, but is not limited to this and may have a cylindrical shape, a polygonal columnar shape, a polygonal truncated pyramid shape, or the like.

[0026] A rubber member or the like can be used as the elastic member 50, and the material of the elastic member 50 can be propylene rubber, EPDM (ethylene propylene rubber), etc. The elastic member 50 preferably has a Young's modulus of 1 MPa to 10 MPa, or 2 MPa to 5 MPa.

[0027] The through hole 50H provided in the elastic member 50 is a through hole for a screw, and is a through hole that communicates with the through hole 16H of the panel fixing part 16 when the elastic member 50 is placed on the main body 10. In the light-emitting signboard 100, the cross-sectional shape of the through hole 50H is a substantially inverted convex shape, with the front side being sized to fit the head of the screw 60 and the rear side being sized to fit the threaded part of the screw 60. This allows the screw 60 to be held securely. The shape of the through hole 50H may be a cylinder (with a rectangular cross section) or the like, as long as at least the threaded part of the screw 60 can pass through it. The shape of the through hole 50H can be appropriately changed depending on the fixing member.

[0028] (Fixing member) In the light-emitting signboard 100, the light-transmitting panel 20 is fixed by screwing using screws 60 as fixing members. As shown in Fig. 3 and Fig. 4, the screws 60 are inserted into through-holes 50H provided in the elastic member 50 from the front side of the light-transmitting panel 20, and pass through the through-holes 50H to penetrate the light-transmitting panel 20. The screws 60 that have penetrated the light-transmitting panel 20 are then inserted into the through-holes 16H of the panel fixing portion 16 and the through-holes 40H of the reinforcing member 40, and fix the peripheral vicinity 20a of the light-transmitting panel 20 to the panel fixing portion 16.

[0029] (Front frame) 2 to 4, the front frame 30 is a member that is placed over the front of the main body 10, and is composed of an edge portion 32 that covers the peripheral portion 20a of the light-transmitting panel 20, and a peripheral side wall portion 34 that is formed from the edge portion 32 along the side wall portion 14 of the main body 10. The front frame 30 can hold the light-transmitting panel 20 between itself and the panel fixing portion 16.

[0030] 2, in the luminous signboard 100, the edge portion 32 is ring-shaped, and the peripheral side wall portion 34 is cylindrical and extends rearward from the periphery of the edge portion 32. The front frame 30 is a metal member, and the material thereof is, for example, stainless steel or aluminum, but is not limited thereto.

[0031] An edge 32 of the front frame 30 exposes the light-transmitting panel 20 except for the portion covered by the edge 32. The edge 32 is large enough to completely or mostly hide the portion of the light-transmitting panel 20 to which the elastic member 50 and the screws 60 are attached when the light-emitting signboard 100 is viewed from the front, and can have a small width of approximately 25 mm to 30 mm even in the case of a light-emitting signboard with an outer diameter of 1.5 m to 2 m.

[0032] 4, the peripheral side wall 34 of the front frame 30 covers the outside of the side wall 14 of the main body 10. The peripheral side wall 34 is provided with a through hole 30H that communicates with the through hole 14H provided in the side wall 14 of the main body 10. The front frame 30 is fixed to the main body 10 by a screw 62, which is a fixing member that passes through the through hole 30H and the through hole 14H from the outside of the peripheral side wall 34.

[0033] Figure 5 shows the results of a simulation of the safety of the luminous sign of the present invention. The luminous sign with the above-mentioned structure had a high safety factor overall, with only a small area of ​​the front frame with a safety factor of 1 or less (the black area indicated by the arrow, red in color). Figure 5 is difficult to understand because it is in monochrome, but the black area other than the part indicated by the arrow is blue in color, and has a safety factor of 6 to 8.

[0034] It should be noted that the light-emitting signboard 100 described with reference to FIGS. 1 to 4 is merely an example of a light-emitting signboard according to the present invention, and the light-emitting signboard according to the present invention is not limited to the light-emitting signboard 100 described above.

[0035] For example, in the light-emitting signboard 100, the panel fixing portion 16 is formed continuously along the front end of the side wall portion 14, but a configuration in which a plurality of panel fixing portions 16 each having one or more through holes 16H are formed at predetermined intervals along the contour of the side wall portion 14 may also be used. Also, the panel fixing portion 16 is not limited to a configuration in which it is provided at the front end of the side wall portion 14 as long as it is formed so that the light-transmitting panel 20 can be fixed forward of the light source, and the panel fixing portion 16 may also be provided on the inner surface of the side wall portion 14 behind the front end of the side wall portion 14.

[0036] In the luminous signboard 100, the screws 62 penetrate through the peripheral side wall portion 34 of the front frame 30 and the side wall portion 14 of the main body 10 to fix the main body 10 to the front frame 30, but they may also penetrate through the peripheral side wall portion 34 of the front frame 30, the side wall portion 14 of the main body 10, and the surface 40b of the reinforcing member 40 to fix the main body 10 to the front frame 30.

[0037] The luminous signboard of the present invention is not limited to a cylindrical shape, and may be shaped in the form of letters, symbols, figures, etc. The luminous signboard of the present invention is suitable as a large signboard with a size (diameter or maximum side of a circumscribing rectangle) of about 1.5 to 2 mm, but is not limited thereto and may be used as a small signboard. [Industrial Applicability]

[0038] The present invention is suitable for use as a large signboard installed outdoors or at a high place. [Explanation of symbols]

[0039] 10. Main Unit 12 Rear wall 14 Side wall 16 Panel fixing part 14H, 16H, 20H, 30H, 40H, 50H through hole 20. Translucent Panel 20a Near the periphery 30 Front Frame 32 Edge 34 Peripheral wall part 40 Reinforcement member 40a, 40b, 40c, 40d, 40e sides 50 Elastic member 60, 62 screws

Claims

1. a main body having a rear wall portion, a side wall portion, and a panel fixing portion to which a fixing member is attached that penetrates a peripheral portion of the light-transmitting panel, the main body having an opening at the front; A light source provided inside the main body; the light-transmitting panel being fixed to the panel fixing portion by the fixing member and emitting light from the light source forward; a front frame having an edge portion covering a peripheral portion of the translucent panel and a peripheral side wall portion formed along the side wall portion of the main body from the edge portion, the front frame being covered by the main body; An illuminating sign comprising: a panel through-hole penetrating in a front-rear direction is provided in a peripheral portion of the light-transmitting panel; The fixing member penetrates the light-transmitting panel through a through hole provided in an elastic member arranged within the panel through hole.

2. a reinforcing member having a first region bonded to the rear wall portion, a second region bonded to the side wall portion, and a third region bonded to the panel fixing portion is provided inside the main body; The light-emitting sign of claim 1 , wherein the fastening member extends from the light-transmitting panel to a third region of the reinforcing member.

3. The light-emitting signboard according to claim 1 or 2, wherein the elastic member has a generally truncated cone shape whose diameter increases forward.

4. The panel fixing portion is formed continuously or at predetermined intervals along the contour of the side wall portion, and The illuminating signboard according to claim 1 or 2, wherein the illuminating member is formed so as to extend from the inner surface of the side wall portion in a direction parallel to the rear wall portion.

5. The luminous signboard according to claim 1 or 2, wherein the light-transmitting panel is made of resin.

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