JP5220779B2 - road sign - Google Patents

Description

      The present invention relates to road signs.

  Conventionally, in order to eliminate the disadvantage that it becomes difficult to discriminate the figure of the sign board when the sun goes back from the back side of the sign board and it becomes backlit, there are those that have many holes in the figure part of the sign board Yes (see, for example, Patent Document 1).

  However, after making a large number of holes in the graphic part of the plate material (for example, an aluminum plate), the reflection sheet was laminated, and the holes were manually opened only in the part corresponding to the holes in the reflection sheet. Therefore, there was a drawback that it took a lot of work to produce. In particular, since road signs are generally much larger than the sign board, there is a drawback that it takes a lot of time for manual work if the sign board technology is used as it is. Further, there is a drawback that the outline of the figure becomes unclear when viewed from the driver during backlighting. That is, in the case of forming a small figure, there is a great drawback that it looks distorted when backlit (that is, the small figure has a very small number of holes, and the arrangement of the holes becomes extremely uneven). For example, as shown in FIG. 12, even if the contour r of the figure is a straight line, a hole as shown by a two-dot chain line is not formed, so the arrangement of the holes 50 in the vicinity of the contour r is a non-linear shape.

Japanese Patent No. 3662602

  The problem to be solved is that if the conventional technique for producing a sign board is used as it is for a road sign, the production takes a lot of time. In particular, it takes a long time to produce a large-size road sign. In addition, at the time of backlighting, the outline of the figure becomes unclear when viewed from the driver. In addition, when a small figure is formed, it appears to be distorted during backlighting. That is, in a small figure, since the number of holes is extremely small, the arrangement of the holes becomes extremely uneven.

Therefore, a road sign according to the present invention includes a back plate in which a first reflective sheet is laminated on the front surface of a first metal plate, and the back plate is formed by laminating the first metal plate and the first reflective sheet. In addition, a large number of holes are machined through almost the entire surface, and the display part of characters, figures, symbols, etc. is stamped by laser processing and second reflection on the surface of the second metal plate A pair of parallel mounting frame members fixed to the back surface of the front plate and slid while being guided by the pair of mounting frame members ; The back plate was overlaid on the back surface, and a part of the holes of the back plate having the plurality of holes was diverted to screw mounting holes, and fixed to the back plate and the front plate. The mounting frame material is fixed with screws .

  According to the road sign of the present invention, it is possible to easily produce a road sign with good visibility of the display unit even in backlight. In particular, even a large road sign can be easily manufactured in a short time. In addition, the outline of the display portion can be clearly shown even in backlighting. In particular, the contours of small figures can be clearly seen.

It is a front view showing a form of implementation of the present invention. It is an expanded sectional side view. It is a front view which shows a back plate. It is a rear view. It is a front view which shows a back plate. It is a principal part expanded sectional bottom view of a back plate. It is expanding the large cross-sectional side view. It is a rear view. It is explanatory drawing which shows the state before attaching a backplate to a front board. It is explanatory drawing which shows the state in the middle of attaching the back board to a front board. It is a principal part enlarged front view. It is explanatory drawing of a prior art example.

FIGS. 1 and 2 show the implementation of the embodiment of the present invention. When the road sign is backlit, the light passes through the many holes 5 so that the display part A for characters, figures, symbols, etc. can be easily recognized, and there is a light source (for example, a headlight of an automobile) in the foreground. The display unit A can be easily recognized by reflecting light from the light source. In front view, for example, colors are arranged so that the display part A looks white and parts other than the display part A appear green.

  Specifically, the back plate 4 (refer FIG.3, FIG.5, FIG.6) which laminated | stacked the 1st reflective sheet 3 on the surface 2 of the 1st metal plate 1 is provided. The first metal plate 1 is preferably made of, for example, an aluminum plate from the viewpoint of excellent formability and light weight, and having an appropriate strength. The back plate 4 has a large number of holes 5 penetrating through substantially the entire surface. Further, a display portion A for characters, figures, symbols, and the like is provided with a front plate 9 in which a second reflective sheet 8 is laminated on the front surface 7 of the second metal plate 6 while being punched by laser processing. The second metal plate 6 is preferably made of, for example, an aluminum plate in terms of formability and light weight. The back plate 4 is superposed on the back surface 10 of the front plate 9. In the present invention, the “superposed configuration” is defined not only to be in contact with each other but also to include a case in which a minute gap is formed.

  As shown in FIGS. 2 and 4, a pair of parallel attachment frame members 11 are fixed to the back surface 10 of the front plate 9 (for example, by welding Y). The attachment frame member 11 is preferably made of aluminum together with the first metal plate 1 because it is the same color as the first metal plate 1. In general, the attachment frame member 11 and the first metal plate 1 are often painted from the back side, but since they are made of the same aluminum material, they have the same texture as seen from the back side, which is preferable. The back plate 4 is attached to the front plate 9 by being slid while being guided by a pair of left and right mounting frame members 11. Reference numeral 12 denotes a spacer made of foamed resin.

  5 and 6 show the back plate 4. A prism sheet 17 having a large number of irregularities 16 on the surface 15 and a transparent resin film 18 are laminated with a gap (gap) G. Reference numeral 19 denotes a net-like support protrusion for forming a gap G between the prism sheet 17 and the transparent resin film 18. That is, the first reflection sheet 3 includes a prism sheet 17, a transparent resin film 18, and a support protrusion 19. As shown in FIG. 5, when the hole 5 is formed around the hole 5, the prism sheet 17 and the transparent resin film 18 come into contact with each other by receiving a force in the pressing direction (the direction in which the thickness of the back plate 4 is compressed). In addition, it looks like the same color (white) as the portion where the support protrusion 19 and the transparent resin film 18 are in contact with each other, and it is possible to prevent rainwater and the like from entering the gap G from the hole 5, which is excellent in durability. The portion where the gap G is formed looks like a light gray when viewed closer. The front plate 9 (see FIGS. 1 and 2) is different in that the hole is not opened and the color of the prism sheet is different (for example, the prism sheet 17 of the back plate 4 is white, the prism sheet of the front plate 9 is The structure is the same as that of the back plate 4 except for the green color).

  FIG. 9 shows a state before the back plate 4 is attached to the front plate 9. FIG. 10 shows a state in the middle of attaching the back plate 4 to the front plate 9. That is, a state is shown in which the back plate 4 is moved in the direction of arrow X in FIG. 9 and is slid and inserted while being guided by the pair of attachment frame members 11.

As shown in FIGS. 7 and 8 , some holes 5 of the back plate 4 having a large number of holes 5 are diverted to the screw attachment holes 13. A back plate 4, the attachment frame member 11 which is fixed to the front plate 9 that is fixed by screws 14.

  The present invention can be modified in design, and may include, for example, a pair of mounting frame members 11 in the vertical direction and a mounting frame member 11 at the bottom. The hole 5 may have a polygonal shape or the like when viewed from the front. For example, a triangle, a rectangle, a hexagon, etc. may be used.

  As described above, the present invention includes the back plate 4 in which the first reflecting sheet 3 is laminated on the front surface 2 of the first metal plate 1, and the back plate 4 has a large number of holes 5 on the substantially entire surface for machining. Further, a surface plate 9 in which a display portion A for characters, figures, symbols, etc. is punched by laser processing and a second reflective sheet 8 is laminated on the surface 7 of the second metal plate 6 is provided. In addition, since the back plate 4 is superposed on the back surface 10 of the front plate 9, a road sign with good visibility of the display part A can be easily manufactured even in backlight. Particularly, even a large-size road sign can be easily manufactured in a short time by punching and forming the holes 5 with a machine after laminating and sticking the first metal plate 1 and the first reflective sheet 3. . That is, (especially a large number of holes 5) can be processed efficiently. In addition, the contour R of the display unit A can be clearly shown even in backlighting. In particular, the contour R of a small figure can be clearly shown. For example, as shown in FIG. 11, the holes 5 are also arranged on the contour R of the display unit A, so that the backlight passes through the holes 5 to clearly show the contour R, and the front plate 9 Due to the presence of the contour end face 9A corresponding to the thickness dimension, the contour R of the display portion A can be clearly recognized.

Further, a pair of parallel attachment frame members 11 are fixed to the back surface 10 of the front plate 9 and are slid while being guided by the pair of attachment frame members 11 to attach the back plate 4 to the front plate 9. As a result, the back plate 4 can be easily and quickly attached and detached.
Further, a part of the holes 5 of the back plate 4 having a large number of holes 5 is diverted to the screw attachment holes 13, and the back plate 4 and the attachment frame member 11 fixed to the front plate 9 are screwed 14. Since it is fixed at, the structure can be simplified and can be easily manufactured.

DESCRIPTION OF SYMBOLS 1 1st metal plate 2 Front surface 3 1st reflection sheet 4 Back plate 5 Hole 6 2nd metal plate 7 Front surface 8 2nd reflection sheet 9 Front plate
10 Back side
11 Mounting frame material
13 Screw mounting hole
14 Screw A Display

Claims (1)

The back surface (4) which laminated | stacked the 1st reflection sheet (3) on the front surface (2) of the 1st metal plate (1) is provided, and this back plate (4) is the said 1st metal plate (1) and the above-mentioned After laminating the first reflective sheet (3) , a large number of holes (5) are penetrated by substantially machining the entire surface, and the display part (A) for characters, figures, symbols, etc. is punched by laser machining. A surface plate (9) which is punched and has a second reflective sheet (8) laminated on the front surface (7) of the second metal plate (6) ,
A pair of parallel attachment frame members (11) are fixed to the back surface (10) of the front plate (9) and slid while being guided by the pair of attachment frame members (11). above the back surface of the top plate (9) (10), superposing the back plate (4), said back plate (4) of the portion of the hole (5) the screw having the plurality of holes (5) Using the attachment hole (13), the back plate (4) and the attachment frame member (11) fixed to the front plate (9) were fixed with screws (14). Characteristic road sign.

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