JP4680428B2 - Braille block - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention illuminates a translucent plate-like body of a Braille block with a light emitting diode, and can smoothly guide a visually impaired person (hereinafter referred to as “low vision person”) who can recognize light and dark to a destination. About.
[0002]
[Prior art]
Conventionally, braille blocks have been laid on sidewalks, platforms, and the like to guide low vision people to their destinations. This braille block is formed in a plane square shape, and a plurality of convex portions are projected on the upper surface, and the low vision person senses the convex portion of the braille block with the tip of the foot or the lower end of the cane. Therefore, it has moved to the destination.
[0003]
However, since the Braille block is merely provided with a plurality of convex portions on the upper surface of the planar square concrete plate-like body, the low-sight person can discriminate between light and dark as described above. The braille block can be recognized only by detecting the protrusion at the lower end of the toe or the cane, and the laying place of the braille block cannot be recognized smoothly.
[0004]
[Problems to be solved by the invention]
The present invention provides a braille block whose upper end surface shines entirely so that a low-sight person can easily recognize the laying position and can be guided smoothly to the destination.
[0005]
[Means for Solving the Problems]
The Braille block according to claim 1 is a flat cross-shaped partition wall formed in a Braille block main body comprising a housing having a fixed low wall portion projecting upward from the outer periphery of the four sides of the bottom of the flat square shape. Is divided into four substantially square-shaped chambers, and a divided translucent plate-like body having the same shape and size as the upper end opening is disposed in the upper end opening of each chamber. The lower surface is fixed with bolts in a state where it is supported by a stepped portion having a substantially rectangular frame shape formed on the inner peripheral surface of the upper end of each chamber portion, and the low wall portion is formed on the four-way inner surface of each chamber portion. A support protrusion having a fixed height that is lower than the height of the chamber and projecting a support column toward the inside is projected to have the same shape and size as the planar shape of each chamber. The bottom surface of the circuit board having a substantially square shape having a flat surface is immersed in a certain depth downward from the braille block main body. The peripheral portion is supported by the upper end surface of the support pillar portion, and the chamber portion is disposed between the lower surface of the divided light-transmitting plate and the light emitting diode disposed upward on the circuit board. Each of the chambers has a plane substantially square-shaped translucent colored sheet having the same shape and the same size as the planar shape by supporting the outer peripheral edge of the lower surface thereof on the upper end surface of the supporting protrusion. A power supply for causing the light emitting diode to emit light and a control circuit for the light emitting diode are disposed in a space below the circuit board in the unit .
[0006]
[Action]
Since the upper end surface of the braille block of the present invention shines, the low-sight person can easily recognize the laying position of the braille block and can reliably guide the low-sight person to the destination.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An example of the Braille block of the present invention will be described with reference to the drawings. The braille block main body 1 of the braille block A is, as shown in FIG. 1 to FIG. 3, a flat square bottom portion 11 and a low wall portion having a fixed height projecting upward from the four outer peripheral edges of the bottom portion 11. 12 and is composed of a housing whose upper end is fully open.
[0008]
In the Braille block main body 1, a flat cross-shaped partition wall 13 having the same height as the low wall portion 12 of the Braille block main body 1 has its four side ends as the four-side inner surfaces of the low wall portion 12. Are connected to the central portion in the width direction of the frame, and the lower end surface is connected to the inner surface of the bottom 11 of the Braille block main body 1 so that the chamber is divided into four equal parts in a cross shape. It is set in. Further, a step portion 101 having a substantially rectangular frame shape is formed on the inner peripheral surface of the upper end of each chamber portion 10.
The upper end opening of each chamber 10 is formed in a substantially square planar shape.
[0009]
Further, on each of the four inner surfaces of each chamber portion 10 of the Braille block main body 1, a laterally long rectangular support protrusion 14 having a constant height lower than the height of the low wall portion 12 and the partition wall 13, 14 are projected, and at both ends of the support protrusion 14 in the width direction, the support column 15 having a substantially semicircular cross section having a height slightly lower than the height of the support protrusion 14 is provided. , 15 is protruding.
[0010]
As shown in FIGS. 1 and 4, a plurality of light emitting diodes 3, 3,... Are arranged in a lattice pattern at regular intervals on the upper surface in each chamber 10 of the Braille block body 1. In addition, the circuit board 4 having the same shape and the same size as the planar shape of the chamber portion 10 and having a substantially square planar shape (in FIG. 1 and FIG. 4, nine light emitting diodes 3, 3,... However, the outer peripheral edge of the lower surface of the brace block main body 1 is recessed downward by a certain depth from the upper end opening of the braille block body 1. , 15... Are supported in a horizontal state and stably.
[0011]
As shown in FIG. 4, a power source 5 for causing the light emitting diode 3 of the circuit board 4 to emit light and the light emitting state of the light emitting diode 3 are disposed in the space below the circuit board 4 in each chamber 10. A control circuit 6 is provided for controlling the above. Note that the power source 5 may be self-power-generating like a solar cell even if it is supplied with electricity from the outside.
[0012]
Further, as shown in FIGS. 4 and 5, a synthetic resin translucent plate-like body 2 is stretched at the upper end opening of the Braille block main body 1. The translucent plate-like body 2 is a flat square divided translucent plate-like body of four small plates having the same shape and the same size as the upper end opening of each chamber 10 in the Braille block main body 1. Are combined with each other in a planar square shape in a non-contact state via the upper end portion 131 of the partition wall 13 so that the upper end opening portion of the Braille block main body 1 has substantially the same shape and the same size. The plane is formed in a substantially square shape.
[0013]
Specifically, the divided translucent plate-like body 21 is stably supported on a stepped portion 101 having a substantially rectangular frame shape formed on the upper end opening of the chamber portion 10 at the outer peripheral edge of the lower surface. Are arranged horizontally.
[0014]
As shown in FIG. 1, through holes 212, 212... That pass through between the upper and lower surfaces are penetrated at the four corners of the divided translucent plate-like body 21. Hole 212
The split light-transmitting plate-like shape is formed by inserting a bolt 7 from above and screwing the bolt 7 integrally into a screw hole 101a recessed in the four corners of the step portion 101 of the chamber 10. The body 21 is integrally fixed to the upper end opening of the chamber 10.
[0015]
Further, as shown in FIG. 4, a low frustoconical protrusion is formed on each of the upper surface portions of the divided translucent plate-like body 21 corresponding to the light-emitting diodes 3, 3. 211, 211... Are projected.
[0016]
When the light-emitting diodes 3, 3... Are caused to emit light, the divided light-transmitting plate-like body 21 is light-transmitting. The divided light-transmitting plate-like body 21 is totally illuminated by the light-emitting diodes 3, 3,...
[0017]
Further, between the lower surface of the divided translucent plate-like body 21 and the light emitting diodes 3, 3..., A planar substantially square shape having the same shape and the same size as the planar shape of the chamber 10 is formed. The translucent colored sheet 8 is disposed by supporting the outer peripheral edge of the lower surface thereof on the upper end surfaces of the support protrusions 14, 14.
[0018]
Then, by adjusting the color or density of the translucent colored sheet 8, the color and intensity of light from the light emitting diodes 3, 3... The divided light-transmitting plate 21 (light-transmitting plate 2) can be illuminated in an optimum state by the light-emitting diodes 3, 3.
[0019]
Further, an impact applied to the divided light-transmitting plate-like body 21 between the outer peripheral end surfaces of the divided light-transmitting plate-like bodies 21, 21... And the upper end inner peripheral surface of the chamber portion 10 opposed thereto. A filler (not shown) made of an elastic material is filled so as to buffer and prevent sand and dust from entering the chamber 10.
[0020]
Next, how to use the Braille block A will be described. As shown in FIG. 6, the Braille blocks A are continuously provided in a state where a plurality of translucent plate-like bodies 2 are exposed on a sidewalk or a road, and adjacent Braille blocks A and A are in contact with each other. It is embedded and used in a state where a band-like body is formed by these braille blocks A, A.
[0021]
However, when the light emitting diode 3 of the Braille block A is supplied with electricity from the power source 5 to emit light, the divided translucent plates 21, 21... The translucent plate-like body 2 formed by combining the light-like plate-like bodies 21, 21... Is fully illuminated so that even a low vision person can easily use the Braille block A regardless of day or night. Therefore, the low vision person can surely reach the destination.
[0022]
Further, a filler made of an elastic material is filled between the outer peripheral surface of the divided translucent plate-like body 21 and the upper end inner peripheral surface of the chamber portion 10 of the Braille block A facing the divided translucent plate-like body 21 . The force applied to the divided translucent plate-like body 21 can be elastically absorbed by the filler made of the elastic material, and the breakage of the divided translucent plate-like body 21 can be more reliably prevented. it can.
[0023]
【The invention's effect】
According to the braille block according to claim 1, the inside of the braille block main body formed of a casing projecting a low wall portion having a constant height upward from the four-side outer peripheral edge of the bottom of the flat square shape has a flat cross shape. The partition wall is divided into four substantially square chambers, and a divided translucent plate having the same shape and size as the upper opening is disposed in the upper opening of each chamber. The lower surface of the chamber is fixed to the four-sided inner surface of each chamber with a bolt in a state of being supported by a stepped portion having a substantially rectangular frame shape formed on the inner peripheral surface of the upper end of each chamber. It has the same height as the planar shape of each chamber by projecting support projections that have a certain height lower than the height of the wall and project support pillars on both sides toward the inside. A planar, substantially square circuit board having the same shape and size was immersed downward from the braille block body by a certain depth. The outer peripheral edge of the lower surface is supported by the upper end surface of the support pillar portion, and the light emitting diode disposed upward on the circuit board and the lower surface of the divided translucent plate-like body In addition, a substantially square planar translucent colored sheet having the same shape and size as the planar shape of the chamber is disposed by supporting the outer peripheral edge of the lower surface on the upper end surface of the support protrusion. And a power source for causing the light emitting diode to emit light and a control circuit for the light emitting diode are disposed in a space below the circuit board in each chamber, so that the light from the light emitting diode is transmitted to the light transmitting plate. It is possible to illuminate the outside through the body, and even a low vision person can easily and surely recognize the Braille block regardless of day or night, so that the low vision person can smoothly and reliably reach the destination. Can reach
[0024]
In addition, since the light-transmissive colored sheets between the facing surfaces of the respective divided light-transmitting plate material and the light emitting diodes are arranged, divided by adjusting the color and density of the translucent colored sheet translucent The color and intensity of light emitted from the light emitting diode through the conductive plate can be finely adjusted. Therefore, the light from the light emitting diode passing through the divided light transmitting plate according to the external environment where the braille block is laid. By finely adjusting the color and intensity of the light, the divided light-transmitting plate-like body is illuminated in a state where it can be most easily recognized by the light emitting diode, making it possible for a low vision person to recognize a Braille block more easily, and for a low vision person to more reliably reach the destination. Can be reached.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a braille block of the present invention.
FIG. 2 is a plan view showing a Braille block main body.
FIG. 3 is a longitudinal sectional view showing a Braille block main body.
FIG. 4 is a longitudinal sectional view showing a Braille block.
FIG. 5 is a plan view showing a braille block.
FIG. 6 is a perspective view showing a usage state of the braille block.
[Explanation of symbols]
1 Braille block body
10 rooms
13 Partition wall 2 Translucent plate
21 Divided translucent plate 3 Light-emitting diode 4 Circuit board 8 Translucent colored sheet A Braille block

Claims (1)

A square cross-shaped partition wall divides the Braille block main body consisting of a casing with a fixed low wall portion projecting upward from the outer periphery of the four sides of the bottom of the flat square shape. The divided transparent plate having the same shape and the same size as the upper end opening is disposed in the upper end opening of each chamber, and its lower surface is the inner peripheral surface of the upper end of each chamber It is fixed with bolts in a state where it is supported by a stepped portion having a substantially rectangular frame shape formed on the flat surface, and has a constant height lower than the height of the low wall portion on the four-way inner surface of each chamber portion. In addition, a circuit board having a substantially square planar shape having the same shape and the same size as the planar shape of each chamber portion is provided by projecting a support projection projecting a support column portion inward. The lower outer peripheral edge of the braille block main body is immersed in a certain depth downward from the braille block main body to the upper end surface of the support column. And having the same shape and the same size as the planar shape of the chamber portion between the lower surface of the divided translucent plate-like body and the light emitting diode disposed upward on the circuit board. The plane-like substantially square-shaped translucent colored sheet is disposed by supporting the outer peripheral edge of the lower surface thereof on the upper end surface of the support protrusion, and in the lower space of the circuit board in each chamber, A braille block comprising a power supply for causing the light emitting diode to emit light and a control circuit for the light emitting diode .

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