JP5539260B2 - Sign board - Google Patents

Description

  The present invention relates to a sign board of a sign device that displays various information such as road signs and public facilities, and more particularly, to a sign board that improves the visibility and legibility of character symbols during backlighting.

  When viewing road signs, etc. in the direction of the morning sun or sunset, the road signs, etc. must be visually recognized in the backlit state of the morning sun or sunset. Since the sign board surface displaying the symbol appears dark, the visibility and legibility of road signs and the like are significantly reduced.

  Therefore, conventionally, in the following Patent Documents 1, 2, 3 and the like, a sign board with improved visibility during backlighting has been proposed.

  Among these, the labeling plate of Patent Document 1 has a reflective sheet for displaying a character design attached to the front surface of a transparent plate made of a transparent acrylic plate or the like, and a punching metal is provided on the back surface of the transparent plate at intervals. Arranged and configured.

Japanese Patent No. 3586171 Japanese Patent No. 3662602 Japanese Patent No. 3875903

  This sign board is a structure that uses the backlight light that has passed through the hole of the punching metal or the transparent plate as the backlight, and displays the reflective sheet representing the character design using the backlight effect of the backlight. At night, like a normal reflective sign, light such as a headlight of a vehicle is received and reflected by the front surface of the reflective sheet, and the character design of the reflective sheet is displayed by reflected light.

  However, although the sign plate of Patent Document 1 is the reflective surface of the reflective sheet as a whole and is easily displayed by retroreflection at night, the reflective sheet representing the character design is only the character design portion. Has translucency, and all other reflective sheet portions are non-translucent portions. For this reason, during backlighting, the luminance ratio between the translucent character design portion and the other non-translucent portion (the portion that looks dark) increases, and a phenomenon such as halation tends to occur. For this reason, there has been a problem that it is difficult to recognize the character design at the time of backlighting, particularly when the character design has a complicated shape.

  On the other hand, the marker plate of Patent Document 2 displays a character design by forming a large number of holes in the character design portion of the plate or by forming a large number of holes in portions other than the character design of the plate. Configured. For this reason, in the case of the sign plate of Patent Document 2, an observer such as a driver sees the light of the backlight through a large number of holes when backlit, and the viewer's pupil closes remarkably when receiving the backlight. Act on. In addition, viewers who see the sign board while receiving backlight will see the sunlight directly from the many holes, which will leave an afterimage in the eye and further cause halation, reducing the visibility and legibility of the sign. There is a problem to do.

  On the other hand, the sign board of Patent Document 3 has a green reflective sheet pasted as a background portion on the front surface of an aluminum plate, and a white cut sheet cut out of a character graphic portion is stuck on the front surface of the green reflective sheet. Furthermore, a slit is formed along the stroke in the white reflection sheet of the character graphic portion.

  However, when manufacturing the sign board of Patent Document 3, a complicated and skillful technique is required in which a member obtained by cutting out a character graphic portion from a white reflective sheet is attached to the front surface of the green reflective sheet. Therefore, the workability in the manufacturing process is very poor, and there are problems such as requiring a lot of work steps, processing time, and skill.

  In addition, the sign plate of Patent Document 3 can be manufactured by attaching a reflective sheet representing a character design to an aluminum plate, and then performing a process of drilling a large number of holes therein. In this case, there is a problem that the display surface of the reflective sheet representing the character design is easily soiled or damaged at the time of drilling a large number of holes.

  The present invention solves the above-described problems, and provides a sign plate that can further improve the visibility and legibility of character symbols and the like during backlighting and can improve the workability during manufacturing. With the goal.

  In the sign board of claim 1 according to the present invention, a translucent white reflective sheet is superposed and stuck only on the character pattern to be displayed and its periphery on the front surface of the perforated board provided with a large number of holes, A translucent chromatic color reflective sheet is laminated and pasted on the front surface of the porous plate including the front surface of the white reflective sheet, and the character pattern to be displayed is cut out and formed on the chromatic color reflective sheet. To do.

  According to this invention, at night, the chromatic color reflection sheet and the white reflection sheet of the character design receive light from the front and are retroreflected to clearly display the white character design on the ground of the chromatic color. In addition, during backlighting, the light passes through the holes of the perforated plate and passes through the translucent white reflective sheet and the chromatic color reflective sheet, so that the display surface is brightly displayed. In particular, only the translucent white reflective sheet is displayed. A white reflective sheet where the part of the character design that transmits light is displayed brightest, and then the chromatic reflection sheet part that is the base is displayed as the (second) bright part, and is superimposed around the character design And the overlapping part of the chromatic color reflection sheet is displayed the third brightest, the luminance ratio of the plate surface is reduced, and the color contrast of the reflection sheet is displayed gently on the eyes.

  For this reason, there is no strong contrast of light and dark in the part where the character design is displayed, the occurrence of halation can be prevented, the character design can be displayed in a state that is easy on the eyes, and the visibility and legibility of the sign are improved. Can do. Furthermore, the processing of the reflection sheet at the time of manufacture is merely cutting out the character design to be displayed on the chromatic color reflection sheet, thereby reducing the number of processing steps and improving the workability at the time of manufacture. Further, since the white reflective sheet is arranged only on the character pattern to be displayed and its periphery, the amount of the expensive white reflective sheet used can be reduced.

  Moreover, the sign board of Claim 2 which concerns on this invention sticks a translucent white reflective sheet to the whole front surface of the perforated plate which provided many holes, and translucent the whole front surface of this white reflective sheet. The chromatic color reflective sheet is laminated and pasted, and the character pattern to be displayed is cut out and formed on the chromatic color reflective sheet.

  According to this invention, since the chromatic color reflection sheet and the white reflection sheet of the character design are arranged on the entire front surface of the sign board, the chromatic reflection sheet and the white reflection sheet of the character design received light from the front at night. When compared with the conventional one that is retroreflected well and cut out the reflection sheet, a white character design can be clearly displayed on the ground surface of the chromatic color.

  In addition, during backlighting, the light passes through the holes of the perforated plate and the light passes through the translucent white reflective sheet and the chromatic color reflective sheet, and a sign is displayed. The portion of the transmitted character design is displayed brightly, and the portion where the chromatic color reflective sheet and the white reflective sheet as the base overlap is displayed darker than that. In other words, the backlighting light passes through the perforated plate and reaches the eyes of the viewer through the translucent white reflective sheet or through the translucent white reflective sheet and the chromatic color reflective sheet, so it is displayed gently on the eyes. Is done.

  For this reason, halation due to strong contrast due to luminance difference does not occur in the portion where the character design is displayed, and the chromaticity difference and luminance difference on the sign board surface are reduced compared to conventional sign boards, making it easier on the eyes In the state, a character design can be displayed, and the visibility and legibility of the sign can be improved. Furthermore, the processing of the reflection sheet at the time of manufacture is merely cutting out the character design to be displayed on the chromatic color reflection sheet, thereby reducing the number of processing steps and improving the workability at the time of manufacture.

  Here, it is preferable to stick a translucent protective sheet on the back surface of the porous plate. Thereby, it is possible to prevent foreign matters such as dust from entering the inside of the marker plate through the holes of the porous plate.

  The perforated plate may be a punching metal having a large number of holes formed on the entire surface of the aluminum plate. Moreover, the aluminum plate which drilled many holes only in the character design displayed and its peripheral part can also be used as a perforated plate.

  According to the sign board of the present invention, it is possible to further improve the visibility and legibility of character symbols and the like during backlighting, and to improve the workability during manufacturing.

It is a perspective view of the sign board which shows one Embodiment of this invention. It is a disassembled perspective view of the marker plate. It is III-III sectional drawing of the marker board. It is an exploded sectional view of the marker board. It is a perspective view of the sign board of other embodiment. It is a disassembled perspective view of the sign board of other embodiment. It is VIII-VIII sectional drawing of the label board. It is an exploded sectional view of the marker board. It is a front view of the sign board of other embodiment. It is a disassembled perspective view of the marker plate. It is a disassembled perspective view of the sign board of other embodiment. It is the front view (a) and the right view (b) of the support | pillar for a sign which attaches a sign board. It is the expansion right side view (a) of the location which connected and fixed the beam and T bar, and its BB sectional view. It is the side view (a) of the latching claw which fixes a rib and T bar, its BB sectional view (b), and its CC sectional view (c).

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show a sign board 1 of a sign device that displays various information such as road information and public facilities attached to a sign support 30. In addition, in the figure explaining embodiment, the thickness of each member of the sign board 1 is illustrated as being relatively thick and exaggerated for ease of viewing of the drawing, and the actual thickness of the sign board 1 is It is relatively thinner than the size of the front.

  The sign plate 1 is a porous plate including a front surface of a white reflective sheet 3 in which a translucent white reflective sheet 3 is superimposed only on a character pattern to be displayed and its periphery on the front surface of a porous plate 4 provided with a large number of holes. A translucent chromatic color reflection sheet 2 is superimposed on the front surface of the plate 4, and the chromatic color reflection sheet 2 is provided with a cutout portion 5 in which a character pattern to be displayed is cut out.

  The perforated plate 4 serving as the substrate of the marker plate 1 is configured by cutting aluminum punching metal into a rectangle, for example. The thickness of the porous plate 4 is, for example, about 2 to 5 mm, and reinforcing ribs 34 (FIG. 12) are welded in the horizontal direction on the back surface. The rib 34 is formed as a long member having the same cross section in which an L-shaped angle material is integrally formed with a C-shaped channel material using, for example, a metal material such as aluminum, and the portion of the L-shaped angle material is the back surface of the porous plate 4. Welded to. The ribs 34 are welded to the back surface of the perforated plate 4 at a predetermined interval in parallel with the horizontal direction to reinforce the perforated plate 4 and constitute an attaching portion when attached to the marker column 30 as will be described later. . A large number of holes 4a formed in the perforated plate 4 are arranged in parallel at predetermined intervals. As the perforated plate, in addition to the punched metal, an aluminum plate in which a large number of holes are formed only in a portion corresponding to a character design may be used.

  The white reflective sheet 3 attached to the front surface of the perforated plate 4 retroreflects the light irradiated from the front surface, and transmits the light from the back surface (rear surface) to some extent, and has a translucent prismatic reflective sheet. Configured as The front surface of the white reflective sheet 3 is made of a transparent plastic plate such as acrylic PMMA having a thickness of about 0.5 to 0.75 mm, and a prism surface of polycarbonate resin is formed on the inner surface of the plastic plate. With this prism surface and the back cover sheet, the white reflective sheet 3 constitutes a prismatic reflective sheet having recursion that reflects light incident from the front in the same direction as the incident direction.

  The white cover sheet is attached to the back side of the hard transparent plastic plate on which the prism surface is formed via a space. The cover sheet is a white sheet made of a thin white plastic or paper sheet and having translucency from the back. Thereby, the white reflective sheet 3 becomes a reflective sheet which exhibits a white external appearance in front view and has translucency from the back surface.

  This white reflective sheet 3 is disposed only on the character design to be displayed and its periphery, and is attached to the front surface (front surface) of the porous plate 4 to display the white color of the character design (cutout portion 5). Note that an adhesive layer is formed in advance on the back surface (back surface) of the white reflective sheet 3, and when the white reflective sheet 3 is stuck on the front surface of the porous plate 4 in the manufacturing process, the two layers are superposed at room temperature. Crimping is performed with heat, or thermocompression bonding is performed by applying heat.

  Further, a chromatic reflection sheet 2 having the same shape and size as the porous plate 4 is attached to the front surface of the porous plate 4 to which the white reflection sheet 3 is attached so as to cover the entire front surface. The chromatic color reflection sheet 2 basically has the same structure as the white reflection sheet 3 except for the color.

  That is, the chromatic color reflection sheet 2 is a colored reflective sheet having translucency that allows light from the back surface (rear surface) to pass to some extent, and a colored translucent plastic plate having recursion of light irradiated from the front. A translucent cover sheet is adhered to the back surface of the glass. The plastic plate forming the front portion of the chromatic color reflection sheet 2 is formed from a hard colored translucent plastic plate having a thickness of about 0.5 to 0.75 mm, and is colored in a chromatic color having translucency. . The chromatic color reflection sheet 2, that is, the colored translucent plastic plate, is colored green or blue as a chromatic color, where green is dark green and blue is dark blue. In addition to green or blue, any color can be used as long as it is a legible color for displaying a character design.

  A prism surface is formed on the inner side surface of the colored translucent plastic plate of the chromatic color reflection sheet 2, and this prism surface and the back cover sheet reflect light incident from the front in the same direction as the incident direction. A surface is formed.

  The white cover sheet is adhered to the back side of the translucent plastic plate on which the prism surface is formed via a space. The cover sheet is a thin white plastic or paper sheet, and is a sheet having translucency from the back side. As a result, the chromatic color reflection sheet 2 exhibits a chromatic color appearance in front view and from the back side. It has a translucent structure.

  As shown in FIG. 1, the chromatic color reflection sheet 2 is attached to the front side of the sign board 1, and the character pattern to be displayed is cut out as a cutout portion 5 on the chromatic color reflection sheet 2. As described above, the chromatic color reflection sheet 2 is adhered to the front surface of the porous plate 4 in which the white reflection sheet 3 is adhered to the position of the character pattern. Thereby, the white reflective sheet 3 is located in the cutout portion 5 of the chromatic color reflection sheet 2, and the cutout portion 5 of the character design is displayed in white on the chromatic color background in front view.

  An adhesive layer is formed in advance on the back surface (back surface) of the chromatic color reflection sheet 2, and in the manufacturing process, the white reflection sheet 3 is covered on the front surface of the porous plate 4 to which the white reflection sheet 3 is adhered. The chromatic color reflection sheet 2 is pressure-bonded at room temperature or heat-pressed by applying heat.

  Furthermore, a translucent protective sheet 6 is attached to the back surface of the porous plate 4. The protective sheet 6 is configured by, for example, a thin synthetic resin transparent sheet provided with an adhesive layer, and is attached so as to cover the entire back surface of the porous plate 4, thereby preventing dust from entering easily through the holes 4 a of the porous plate 4. It is supposed to be.

  As described above, when the sign plate 1 is manufactured, the reflective sheet is processed by only cutting out the character design to be displayed on the chromatic color reflective sheet 2, and otherwise the perforated plate cut into a predetermined size and shape. 4, the chromatic color reflection sheet 2, the white reflection sheet 3, and the protective sheet 6 may be attached, and the processing is easy, the number of processing steps is small, and the workability at the time of manufacture can be improved.

  5-8 has shown the label | marker board 11 of other embodiment. The marker plate 11 has a translucent white reflective sheet 13 superimposed and pasted on the entire front surface of the perforated plate 14 provided with a large number of holes, and a translucent chromatic color on the front surface of the white reflective sheet 13. The reflective sheet 12 is stacked and pasted, and the chromatic color reflective sheet 12 is provided with a cutout portion 15 in which a character design to be displayed is cut out.

  The porous plate 14 serving as the substrate of the sign plate 11 is configured by cutting, for example, an aluminum punching metal into a rectangle, and reinforcing ribs 34 are provided on the back surface of the porous plate 14 in the horizontal direction as shown in FIG. Are welded at a predetermined interval in parallel.

  Similar to the above, the white reflective sheet 13 attached to the front surface of the porous plate 14 retroreflects the light irradiated from the front surface, and transmits light from the back surface (rear surface) to some extent. It is comprised as a prism type reflection sheet having. The front surface of the white reflective sheet 13 is made of a hard transparent plastic plate having a thickness of about 0.5 to 0.75 mm, and a prism surface is formed on the inner side surface of the plastic plate. With the prism surface and the back cover sheet, the white reflective sheet 13 constitutes a prismatic reflective sheet having recursion that reflects light incident from the front in the same direction as the incident direction.

  The white cover sheet is attached to the back side of the hard transparent plastic plate on which the prism surface is formed via a space. The cover sheet is a white sheet made of a thin white plastic or paper sheet and having translucency from the back. Thereby, the white reflective sheet 13 has a white appearance in a front view and is a reflective sheet having translucency from the back.

  Further, the chromatic color reflection sheet 12 is attached to the entire front surface of the white reflection sheet 13. The chromatic color reflection sheet 12 basically has the same structure as the white reflection sheet 13 except for the color.

  That is, the chromatic color reflection sheet 12 is a colored reflection sheet having translucency that allows light from the back surface (rear surface) to pass to some extent, and a colored translucent plastic plate having recursion of light irradiated from the front. A translucent cover sheet is adhered to the back surface of the glass. The plastic plate forming the front surface portion of the chromatic color reflection sheet 12 is formed from a hard colored translucent plastic plate having a thickness of about 0.5 to 0.75 mm, and is colored in a chromatic color having translucency. . The chromatic color reflection sheet 12, that is, the colored translucent plastic plate, is colored green or blue as a chromatic color, where green is dark green and blue is dark blue.

  A prism surface is formed on the inner side surface of the colored translucent plastic plate of the chromatic color reflection sheet 12, and the prism surface and the back cover sheet reflect light incident from the front in the same direction as the incident direction. A surface is formed.

  The white cover sheet is adhered to the back side of the translucent plastic plate on which the prism surface is formed via a space. The cover sheet is a thin white plastic or paper sheet, and is a sheet having translucency from the back surface. As a result, the chromatic color reflection sheet 12 has a chromatic appearance in a front view and is formed from the back surface. It has a translucent structure.

  As shown in FIG. 5, the chromatic color reflection sheet 12 is formed by cutting out the displayed character design as a cutout portion 15, and the chromatic color reflection sheet 12 is attached to the front surface of the sign board 11, that is, the entire front surface of the white reflection sheet 13. Is done. Thereby, the white reflective sheet 13 is positioned in the cutout portion 15 of the chromatic color reflection sheet 12, and the cutout portion 15 of the character design is displayed in white on the chromatic background in front view.

  On the other hand, a translucent protective sheet 16 is attached to the back surface of the porous plate 14. The protective sheet 16 is configured by, for example, a thin synthetic resin transparent sheet provided with an adhesive layer, and is attached so as to cover the entire back surface of the porous plate 14 to prevent entry of dust that easily enters the holes 14a of the porous plate 14. It is supposed to be.

  Even when the sign plate 11 is manufactured, the reflective sheet is processed by only cutting out the character design to be displayed on the chromatic color reflective sheet 12, and otherwise the perforated plate 14 cut into a predetermined size and shape. The chromatic color reflection sheet 12, the white reflection sheet 13, and the protective sheet 16 may be attached to each other, processing is easy, the number of processing steps is small, and workability at the time of manufacture can be improved.

  9 to 11 show a sign plate 21 of still another embodiment. The sign board 21 of FIG. 10 is attached to a perforated plate 24 provided with a large number of holes on a translucent white reflective sheet 23 formed by dividing only a portion corresponding to a character design to be displayed. A translucent chromatic color reflection sheet 22 is attached to the front surface of the white reflection sheet 23, and the chromatic color reflection sheet 22 is provided with a cutout portion 25 formed by cutting out character patterns to be displayed.

  On the other hand, the sign board 21 in FIG. 11 is obtained by attaching a translucent white reflective sheet 23 formed in a divided manner to a perforated plate 24 provided with a large number of holes only in a portion corresponding to a character design to be displayed. A translucent chromatic color reflection sheet 22 is attached to the front surface of the sheet 23, and the chromatic color reflection sheet 22 is provided with a cutout portion 25 formed by cutting out character patterns to be displayed.

  The porous plate 24 shown in FIG. 10 that is the substrate of the sign plate 21 uses, for example, aluminum punching metal, and the porous plate 27 shown in FIG. 11 corresponds to the character design that is cut into a rectangular shape and displayed. A large number of holes are formed only in the portion to be displayed, that is, only in the back surface of the character design to be displayed and in the vicinity thereof. Further, reinforcing ribs 34 are welded to the back surfaces of the perforated plates 24 and 27 at a predetermined interval in parallel with the horizontal direction as shown in FIG.

  The white reflective sheet 23 attached to the front surfaces of the perforated plates 24 and 27 is divided and formed only in a portion corresponding to the character design to be displayed, and retroreflects the light irradiated from the front surface, while the rear surface (rear surface). ) Is transmitted to some extent, and is configured as a light-transmitting prism type reflection sheet. The front surface of the white reflective sheet 23 is made of a hard transparent plastic plate having a thickness of about 0.5 to 0.75 mm, and a prism surface is formed on the inner side surface of the plastic plate. With the prism surface and the back cover sheet, the white reflection sheet 23 constitutes a reflexive prism type reflection sheet that reflects light incident from the front surface in the same direction as the incident direction.

  The white cover sheet is attached to the back side of the hard transparent plastic plate on which the prism surface is formed via a space. The cover sheet is a white sheet made of a thin white plastic or paper sheet and having translucency from the back. Thereby, the white reflective sheet 23 is a reflective sheet that exhibits a white appearance in front view and has translucency from the back.

  Further, a chromatic color reflection sheet 22 is attached to the front surface of the white reflection sheet 23. The chromatic color reflection sheet 22 basically has the same structure as the white reflection sheet 23 except for the color.

  The chromatic color reflection sheet 22 is a colored reflection sheet having translucency that transmits light from the back surface (rear surface) to some extent, and the back surface of a colored translucent plastic plate having recursion of light irradiated from the front. In addition, a translucent cover sheet is attached. The plastic plate forming the front surface portion of the chromatic color reflection sheet 22 is formed from a hard colored translucent plastic plate having a thickness of about 0.5 to 0.75 mm, and is colored in a chromatic color having translucency. . The chromatic color reflection sheet 22, that is, the colored translucent plastic plate, is colored green or blue as a chromatic color, where green is dark green and blue is dark blue.

  A prism surface is formed on the inner side surface of the colored translucent plastic plate of the chromatic color reflection sheet 22, and this prism surface and the back cover sheet reflect the light incident from the front in the same direction as the incident direction. A surface is formed.

  The white cover sheet is adhered to the back side of the translucent plastic plate on which the prism surface is formed via a space. The cover sheet is a thin white plastic or paper sheet, and is a sheet having translucency from the back surface. As a result, the chromatic color reflection sheet 22 has a chromatic appearance in a front view and is formed from the back surface. It has a translucent structure.

  As shown in FIGS. 10 and 11, the chromatic color reflection sheet 22 is divided into upper and lower parts, and displayed character designs are cut out as cutout portions 25. The chromatic color reflection sheet 22 is formed on the sign plate 21. It is attached to the front surface, that is, the front surface of the white reflective sheet 23. Thereby, the white reflective sheet 23 is positioned in the cutout portion 25 of the chromatic color reflection sheet 22, and the cutout portion 25 of the character design is displayed in white on the chromatic color background in front view.

  On the other hand, as shown in FIG. 10, a single translucent protective sheet 26 is attached to the entire back surface of the porous plate 24. In the case of FIG. 11, the divided protective sheet 28 is divided into the porous plate 27. It is attached only to the portion where the hole 27a is formed. The protective sheets 26 and 28 are configured by providing an adhesive layer on a thin sheet made of synthetic resin, for example, and are attached so as to cover the entire back surface of the porous plate 24 or only the hole 27a portion of the porous plate 27. Intrusion of dust that easily enters the hole 24a of the plate 24 or the hole 27a of the perforated plate 27 is prevented.

  Even when the sign plate 21 is manufactured, the reflective sheet is processed by only cutting out the character design to be displayed on the chromatic color reflective sheet 22, and otherwise the perforated plate 24 cut into a predetermined size and shape. Alternatively, 27, the chromatic color reflection sheet 22, the white reflection sheet 23, and the protective sheet 26 or 28 may be attached, the processing is easy, the number of processing steps is small, and the workability at the time of manufacturing can be improved. .

  The sign plates 1, 11, and 21 having the above-described configuration are used as, for example, road signs and information signs for public facilities. For example, as shown in FIGS. In addition to the F-type sign post 30, it can be attached to a butterfly sign post or a gate-type sign post (not shown).

  Two beams 31 are fixed horizontally on the upper portion of the sign post 30, and a beam standing steel 32 is fixed vertically between the beams 31. On the other hand, as described above, a plurality of reinforcing ribs 34 are welded to the back of the sign plates 1, 11, 21, so that the two T bars 33 are perpendicular to the ribs 34. Fixing is performed using the locking claw 35 and the fixing bolt 36.

  The two T bars 33 are long metal materials having a T-shaped cross section, and the T bars 33 are formed on the C-shaped channel material portions of the ribs 34, as shown in FIGS. It is fixed by tightening. As shown in FIG. 14, the locking claw 35 is formed in a substantially L shape in a side view and provided with a bolt hole.

  When fixing the rib 34 to the T-bar 33, the fixing bolt 36 is fitted with a nut at the tip of the fixing bolt 36 with its head fitted inside the C-shaped channel material of the rib 34 and passed through the bolt hole of the locking claw 35. Then, the fixing bolt 36 is tightened so that the edge of the T bar 33 is pressed by the tip of the locking claw 35.

  As a result, the rib 35 welded to the back surface of the marker plates 1, 11, 21 is fixed to the T-bar 33 by the fixing bolt 36 and the locking claw 35 as shown in FIG. As shown in FIG. 13, the T-bar 33 is fixed to a fixing portion welded so as to protrude from the side portions of the two beams 31 with fixing bolts. Is attached to the sign post 30.

  At night, for example, when light is applied to the sign plates 1, 11, and 21 from a vehicle headlamp, and the light hits the chromatic color reflection sheets 2, 12, and 22 and the white reflection sheets 3, 13, and 23 on the front surface, the recursion The reflected light can reach the driver's eyes well, and the driver can clearly see the character design of the sign boards 1, 11, 21 as a white character design on a green or blue ground. it can. Moreover, since the signboards 1, 11, and 21 as a whole are reflective surfaces, the visibility of the signboard at night can be improved compared to a conventional signboard that uses a reflective sheet only for portions other than character designs.

  On the other hand, in the sign plate 1 of FIG. 1, when viewed from the front in the early morning or evening, in the state of being backlit by the morning sun or sunset, the light passes through the many holes 4a of the perforated plate 4 so that the light passes from the back to the front. The sign is displayed with good brightness like a backlight display. At this time, as shown in FIG. 3, the transmitted light L1 passing through the cutout portion 5 of the character symbol passes through the translucent white reflective sheet 3, and the cutout portion 5 of the character symbol is displayed brightest.

  In the sign board 1, since the transmitted light L2 is colored in the portion of the chromatic color reflection sheet 2 serving as the background, the second lit color reflection sheet 2 is displayed as the second brightest portion. Then, in the overlapping portion of the white reflection sheet 3 and the chromatic color reflection sheet 2 superimposed around the character design, the transmitted light L3 passes through the white reflection sheet 3 and the chromatic color reflection sheet 2 and is the third brightest. It is displayed as a part, that is, the darkest part. Thus, when the entire sign board 1 is viewed, the brightness is displayed gently so that the brightness changes in order.

  Further, in the sign plate 11 shown in FIG. 7, when backlit, the light passes through the holes of the porous plate 14 and the light passes through the translucent white reflective sheet 13 and the chromatic color reflective sheet 12, and the sign is displayed. The portion of the character pattern (the cutout portion 15) through which light is transmitted only through the translucent white reflective sheet 13 is displayed brightly, and the portion of the underlying chromatic reflective sheet 12 is displayed darker than that. That is, both the backlight light passes through the perforated plate 14 and reaches the viewer's eyes through the translucent white reflection sheet 13 or the translucent white reflection sheet 13 and the chromatic reflection sheet 12. It is displayed gently on the eyes.

  Furthermore, in the sign plate 21 shown in FIG. 11, the portion without the hole 27a of the perforated plate 27 (the portion excluding the back side of the character design and the vicinity thereof) is the darkest because no transmitted light is generated from the back side. In the portion of the chromatic color reflection sheet 22 that is displayed and becomes the base of the character design, the transmitted light that passes through the perforated plate 27 is colored and displayed through the overlapping portion of the white reflection sheet 23 and the chromatic color reflection sheet 22, and the chromatic color is displayed. In the cutout portion 25 of the character design obtained by cutting out the reflection sheet 22, the transmitted light transmitted through only the white reflection sheet 23 is displayed as the brightest white portion. Thus, when the entire sign board 21 is viewed, the brightness ratio is reduced so that the brightness changes in order, and the display is gentle on the eyes due to the color contrast.

  As described above, the sign boards 1, 11 and 21 do not generate halation due to the strong contrast due to the difference in luminance in the portion where the character design is displayed, and the difference in chromaticity of the sign board surface compared to the conventional sign board. In addition, it is possible to display the character design in a state that is easy on the eyes by reducing the luminance difference, and the visibility and legibility of the sign can be improved. Furthermore, the processing of the reflection sheet at the time of manufacturing is merely cutting out the character design to be displayed on the chromatic color reflection sheets 2, 12, 22 and forming the cutout portions 5, 15, 25, thereby reducing the number of processing steps and manufacturing. Workability at the time can be improved.

  In addition, although the prism type reflective sheet | seat which has a retroreflection function was used for the white reflective sheet 3,13,23 of the said embodiment, and the chromatic color reflective sheet 2,12,22, the translucency from a back surface is used. As long as the reflection sheet is provided, a reflection sheet having another structure can be used.

DESCRIPTION OF SYMBOLS 1 Marking plate 2 Chromatic color reflection sheet 3 White reflection sheet 4 Porous plate 4a Hole 5 Cutout part 6 Protection sheet 11 Marking plate 12 Chromatic reflection sheet 13 White reflection sheet 14 Porous plate 14a Hole 15 Cutout part 16 Protection sheet 21 Labeling plate 22 Chromatic reflective sheet 23 White reflective sheet 24 Perforated plate 24a Hole 25 Cutout part 26 Protective sheet 30 Marking column 31 Beam 32 Beam standing steel 33 T bar 34 Rib 35 Locking claw 36 Fixing bolt

Claims (5)

  A front surface of the porous plate including the front surface of the white reflective sheet, wherein a translucent white reflective sheet is attached to the front surface of the perforated plate provided with a large number of holes in an overlapping manner only on the character pattern to be displayed and its periphery. A sign board, wherein a translucent chromatic color reflection sheet is laminated and adhered to the chromatic color reflection sheet, and the character design to be displayed is cut out and formed on the chromatic color reflection sheet.   A translucent white reflective sheet is attached to the entire front surface of the perforated plate provided with a large number of holes, and a translucent chromatic color reflective sheet is attached to the entire front surface of the white reflective sheet. A sign board, wherein the character design to be displayed is cut out on a chromatic color reflection sheet.   The sign board according to claim 1 or 2, wherein a translucent protective sheet is adhered to the back surface of the porous plate.   3. The marker plate according to claim 1, wherein a punching metal having a large number of holes formed on the entire surface of an aluminum plate is used as the porous plate.   The sign board according to claim 1 or 2, wherein an aluminum plate in which a number of holes are formed only in the displayed character design and its peripheral portion is used as the porous plate.

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