JP2008121275A - Manufacturing method for guidance sign - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incombustible guidance sign for a staircase, which enables the step and side surface of the staircase to be visually recognized by virtue of light from a luminous material, even if it becomes dark because illumination is turned off, which has unpeelability and excellent abrasion resistance, which does not become slippy even if it gets wet with water, and which is not cracked during manufacture. <P>SOLUTION: When burning is performed, a white substrate layer 6, and a luminous layer 7, in which a printing material composed of glass frit and a medium is printed and on which a luminous material is sprinkled, are formed on the surface of a metallic plate 5; additionally, a glass layer 9 is printed on the luminous layer 7 in a superposed manner; and the metallic plate 5 is placed on a bar 12 of an implement 10 in such a manner that the printed layer is located in an upper position. Since the metallic plate 5 is not initially bent, the metallic plate 5 is supported between the bars 12 at both the ends as shown in Fig. 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a guide sign for installation on a staircase of a high-rise building or the like, or a staircase of an outdoor stadium. The present invention relates to a method for manufacturing a stairway guide sign that can be evacuated safely.

  There are known display plates that use a phosphorescent material that can be visually recognized at night or in a dark place, such as guide plates for emergency evacuation. In particular, in the event of an emergency in a high-rise building or the like, if the power supply becomes unavailable, a large number of people must evacuate in the dark. In such a case, if a luminescent guide sign is installed on the stairs, the risk of stepping off can be avoided.

  There is a phosphorescent tape as a guide sign to be installed on the steps of stairs, but it is not suitable for long-term use because it is easily damaged by peeling or abrasion. In addition, when water for fire fighting is applied, it is slippery and dangerous. Moreover, when installing on stairs, such as an outdoor stadium, it is easy to slip in rain and is dangerous.

As a technology of such a phosphorescent material, there is, for example, Patent Document 1. Although this document is not intended for induction plates, a ceramic is described in which a first glass layer composed of a glass component, a functional layer composed of a glass component and a phosphorescent material, and a second glass layer composed of a glass component are laminated. Has been.
JP 2004-359480 A

  The ceramics described in Patent Document 1 can be used, for example, as sidewalk tiles. However, since it is a ceramic, if it is formed in a thin plate shape, the strength may decrease.

  In order to produce a thin and durable phosphorescent plate, it is necessary to use a metal plate as a base material. However, the metal base material is greatly expanded and contracted by heat. Further, the base layer formed on the surface of the metal plate and the luminous layer formed thereon are kneaded with a white pigment or a luminous material in a glass frit to form a paint, printed on the metal plate, dried, and fired.

  Compared with the printed layer containing this glass frit, the metal plate has a larger coefficient of thermal expansion and contraction, and when fired in a horizontal state, large warping occurs during cooling after high-temperature firing, and in some cases cracks occur in the phosphorescent layer. Will do. This phenomenon becomes prominent when the metal plate is made 50 mm or less in width and 500 mm or more in length and the thickness of the metal plate is reduced to 2 mm or less, particularly about 1 mm.

  The present invention relates to a method of manufacturing a guide sign for installation on a staircase of a high-rise building or an outdoor stadium, and visually recognizes steps and side walls of a staircase with light from a phosphor, even when the light is turned off and dark. An object of the present invention is to provide a method for producing an inductive sign which is nonflammable, does not peel off, has excellent wear resistance, does not slip even when wet, and does not crack during production. And

  In order to solve the above-mentioned problem, the first invention of the present application is a method for producing an induction marker that is fired after forming a printed layer in which a base layer, a phosphorescent layer, and a surface glass layer are stacked on the surface of a metal plate such as stainless steel, This guide sign is formed in a long shape, the printed layer is formed in a block shape with a gap formed between them, and supports the printed layer on the top and the metal plate on the bottom when firing, Further, in consideration of the difference in shrinkage between the printed layer and the metal plate when cooled, the whole metal plate was bent downward by its own weight, or the part bent downward was continuously baked.

  The second invention of the present application is a method for producing a guide sign that is fired after forming a printed layer in which a base layer, a phosphorescent layer, and a surface glass layer are formed on the surface of a metal plate, and the guide sign has a long shape. In addition, there is provided a planned cutting portion in which the printing layer does not exist in the short direction and the surface of the metal plate is exposed, and the printing layer is supported so that the printing plate is on the top and the metal plate is on the bottom, and printing is further performed when cooled In anticipation of the difference in shrinkage between the layer and the metal plate, the entire metal plate is bent downward by its own weight, or the portion bent downward is continuously baked, and after the baking, along the above-mentioned cut portion The long guide label was cut.

  The pigment constituting the base layer is preferably white or uses the same color (blue or yellow-green) as the luminescent color of the phosphorescent layer to improve the reflection efficiency.

  The method of the present invention is particularly effective for a thin stainless steel plate (2 mm or less), a width of 50 mm or less, and a length of 500 mm or more.

According to the method for manufacturing a guide sign according to the first invention of the present application, even if a phosphorescent layer is printed on the surface of a long and thin metal plate and fired, the heat shrinkage during cooling of the metal plate during firing. Since the baking is performed by bending downward in anticipation of the rate, no warping occurs after baking.
In addition, if the printing layer is formed in a block shape and a gap is formed between them, the luminous layer is less likely to crack and exhibits an anti-slip effect.

  According to the method for producing a guide sign according to the second invention of the present application, in the same manner as in the first invention, in addition to the fact that no warping occurs after firing, In obtaining a guide sign, since there is no printing layer (underlayer, phosphorescent layer, and surface glass layer) in the planned cutting portion, it is possible to prevent the printing layer from cracking during cutting.

  Moreover, since there is little warp, there are no disadvantages such as a person using the stairs crawling or hooking off.

The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example in which a guide sign obtained by the method for manufacturing a guide sign of the present invention is installed on a staircase.
A linear guide sign 3 is installed at the end of step 2 of the staircase 1, and a short guide sign 3 a is installed on both sides of the guide sign 3 to match the width of step 2. In addition, a guide sign 3b having an L shape by combining a short guide sign is installed on the side wall of the staircase 1 as well.

  In order to simplify the drawing, the side wall on the front side is not shown, but it is preferable to install the guide sign 4 here as well. There is no restriction as to the method of installation. For example, it can be embedded when a building is newly constructed, or it can be retrofitted to an existing staircase or side wall by using an adhesive means such as an adhesive or an anchor bolt.

  FIG. 2A is a plan view of a staircase guide sign according to the first invention (as it is long), FIG. 2B is a side sectional view, FIG. 2C is a front sectional view, and the guide sign 3 is a metal plate 5. A base layer 6 is formed on the entire upper surface of the substrate, a phosphorescent layer 7 is laminated (printed) on the foundation layer 6 in a block shape, and a protective surface glass layer 9 is laminated (printed) on the phosphorescent layer 7. ) And between the luminous layers 7, the groove | channel g1 which exhibits a slip prevention effect is formed.

  FIG. 3 is a view similar to FIGS. 2A to 2C showing a modification of the first invention. In this embodiment, the light storage layer 7 includes two rows of square light storage blocks. The arrangement is regularly arranged. In the case of this example, the light emission amount is inferior to that shown in FIG. 2, but the anti-slip effect is high.

  4A is a plan view of a staircase guide sign according to the second invention (cutting a long guide sign), FIG. 4B is a side sectional view, FIG. 4C is a front sectional view, and FIG. 4D is a state after cutting. In this embodiment, there is no printing layer (underlying layer 6 + phosphorescent layer 7 + surface glass layer 9) on the entire upper surface of the metal plate 5, and the planned cutting portion g2 where the metal plate 5 is exposed is shown in FIG. It is provided and cut off along the planned cutting portion g2 after firing.

  FIG. 5 is a view similar to FIGS. 4A to 4D showing a modification of the second invention. In this embodiment, the phosphorescent layer 7 is formed as in the embodiment shown in FIG. Divided into a plurality of square phosphorescent blocks.

Next, a method for producing a guide sign will be described. First, a printing material made of white pigment and medium is printed on the upper surface of the metal plate 5. In addition, when using a green type phosphorescent material as the phosphorescent material, a green pigment may be used, and when using a blue type phosphorescent material as the phosphorescent material, a blue pigment may be used.

  And it cools after drying at 150-200 degreeC, and the base layer 6 is formed. The underlayer 6 makes the light accumulation clearer by the light reflection. Here, you may add the process of printing the printing material which consists of a glass frit material and a medium, and cooling after drying at 150-200 degreeC. Although this step is not essential, it has the effect of increasing strength and increasing interlayer adhesion.

  Next, a printing material composed of a phosphorescent material, a glass frit material, and a medium is printed on the base layer 6, dried at about 150 to 200 ° C., and then cooled to form the phosphorescent layer 7. There is no limit to the height of the phosphorescent layer 7, but it needs to be installed in step 2 to have a non-slip function. It is desirable to set it to about 0.5-2 mm from nature.

  Further, the glass layer 9 is formed on the phosphorescent layer 7 by printing a printing material made of a glass frit material and a medium. If necessary, it may be dried at 150 to 200 ° C. and cooled. The glass layer 9 has a role of transmitting and diffusing light emitted from the phosphorescent layer 7 and a role of a protective layer for preventing the phosphorescent layer 7 from being worn.

  Subsequently, firing is performed. The entire induction marker 3 is heated at about 800 ° C. until the glass frit of each layer is completely melted. Thereafter, the induction sign 3 is completed by natural cooling.

  A jig 10 shown in FIGS. 6 and 7 is used for firing. The jig 10 is provided with a plurality of stages of support portions 11, and each support portion 11 includes a plurality of horizontal bars 12. In each support portion 11, the plurality of bars 12 are arranged along a line that bends downward.

  When firing, a white underlayer 6 and a printing material composed of glass frit and medium are printed on the surface of the metal plate 5 to form a phosphorescent layer 7 sprinkled with a phosphorescent material, and a glass layer 9 is further printed thereon. Then, the metal plate 5 is placed on the bar 12 of the jig 10 so that the printed layer is on top. Since the metal plate 5 is not bent at first, the metal plate 5 is supported between the bars 12 at both ends as shown in FIG. This is put in a firing kiln and fired at about 800 ° C. to melt the glass frit.

  The metal plate 5 is bent downward by heating as shown in FIG. 8, but is maintained in a state where it is bent to some extent by the remaining bars 12. As the degree of this bending, when the metal plate 5 and the glass frit are cooled, it is important that the metal plate portion contracts and the printing surface side becomes a horizontal or slightly convex shape. The height of the bar 12 is appropriately adjusted by calculation or by repeating the experiment.

  FIG. 8 is a diagram showing another embodiment of the firing method. In the embodiment, the line connecting the plurality of bars 12 constituting each stage is curved as a whole, but as shown in FIG. In addition, the plurality of bars 12 may be spaced apart in the horizontal direction. In this case, between the adjacent bars 12, the metal plate 5 bends downward during firing, and this curve continues.

  As described above, even if the plurality of bars 12 are arranged in the horizontal direction, the metal plate 5 is curved downward between adjacent bars, so that when cooled, the metal plate 5 as a whole becomes a horizontal shape or a shape close thereto.

  Since the method for producing a guide sign according to the present invention has the various functions described above, it is particularly effective to install it on an stairs for evacuation of a high-rise building and a normal use stairs that also serves for evacuation. In addition, if it is installed on a staircase in a shop, a restaurant, a coffee shop, etc. that uses relatively dark lighting, or a staircase in a general home, it is useful even in an emergency.

The perspective view which shows an example which installed the guidance sign which concerns on this invention in the staircase (A) is a plan view of the stairway guide sign according to the first invention, (b) is a side sectional view, and (c) is a front sectional view. The same figure as (a)-(c) of Drawing 2 showing the modification of the 1st invention (A) is a plan view of a staircase guide sign according to the second invention, (b) is a side sectional view, (c) is a front sectional view, and (d) is a diagram showing a state after cutting. The same figure as (a)-(d) of Drawing 4 showing the modification of the 2nd invention Plan view of jig used for firing Side view of jig used for firing Side view of the main part showing the state during firing Figure similar to FIG. 8 showing another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Stairs, 2 ... Step, 3, 3a ... Stairway guide sign, 5 ... Metal plate, 6 ... Underlayer, 7 ... Block-shaped luminous layer, 9 ... Glass layer, 10 ... Jig, 11 ... Support part, 12 ... Bar, g1... Groove, g2.

Claims (5)

A method of manufacturing a guide sign that is fired after forming a printed layer in which a base layer, a phosphorescent layer, and a surface glass layer are overlaid on the surface of a metal plate, the guide sign having a long shape, and the printed layer has a gap therebetween In the firing process, the printed layer is supported so that the metal plate is on the top and the difference in shrinkage between the printed layer and the metal plate when further cooled. A method for producing an induction sign, characterized in that the whole metal plate is bent downward by its own weight or is baked by continuously connecting portions bent downward. A method of manufacturing a guide sign that is fired after forming a printed layer in which a base layer, a phosphorescent layer, and a surface glass layer are overlaid on the surface of a metal plate, the guide sign having a long shape and the printed layer in a short direction. There is no planned cutting part where the surface of the metal plate is exposed, and when firing, the printed layer is supported so that the metal plate faces down, and the shrinkage amount between the printed layer and the metal plate when further cooled In view of the difference, the entire metal plate is bent downward by its own weight or the portion bent downward is continuously baked, and the long guide sign is cut along the planned cutting portion after baking. A method for producing a guide label characterized by the above. 3. The method for producing a guide sign according to claim 1, wherein the pigment constituting the base layer uses white or the same color as the luminescent color of the phosphorescent layer. 4. The method for producing a guide sign according to claim 1, wherein the metal plate has a thickness of 2 mm or less. 5. The method for producing a guide sign according to claim 1, wherein the metal plate has a dimension of 500 mm or more.