JP6629480B1 - Linear projections for guiding the visually impaired - Google Patents

Abstract

An object of the present invention is to provide a linear projection for guiding a visually impaired person, even if the user uses the white cane, strokes the user thinly, and it takes time for the user to know the longitudinal direction. At the same time, there is anxiety that I cannot be sure. Furthermore, the hit is not stable with a white cane with different thicknesses. A linear projection (3) for guiding a visually impaired person is provided with a projection (4) forming an angle (4c) from an upper surface (4a) to left and right side surfaces (4b). [Selection diagram] Fig. 1

Description

  The present invention relates to a shape of a linear protrusion on a walking surface for guiding a visually impaired person.

  Regarding the linear projections for guiding the visually impaired, four linear projections having a cross section of a trapezoid with a tilt of 45 degrees, a height of 5 mm, and a length of about 270 mm in the longitudinal direction are arranged side by side at four intervals of 75 mm, There is a standard that fits within 300 mm in length and width (see Non-Patent Document 1). The linear projection for guiding the visually impaired is formed in a block of a material such as yellow concrete or plastic, and is laid on a walking surface with its longitudinal direction facing the guiding direction and connected in a row.

  Since the length of the linear protrusion is as large as the sole, the longitudinal direction can be determined only by the tactile sensation, and the guiding direction can be confirmed. The shape of the projection is determined so that the stimulus to a pedestrian (for example, a user of a white cane) is strong in order to obtain a reliable feel even on an outdoor walking surface having a lot of unevenness.

  A white cane for visually impaired people to explore the surroundings can be used by sliding on a walking surface. If a linear projection rising from the walking surface is hit, the presence of the projection can be confirmed. Further, by stroking the side surface with the white stick, the user can know the longitudinal direction of the linear projection and can confirm the guiding direction.

Japanese Industrial Standards JIS T 9251: 2001, Shapes and dimensions of protrusions such as flocks for guiding visually impaired persons and their arrangement

  However, many of the conventional linear projections have smooth side surfaces, so that even a white cane has a thin touch, and it takes time for the user to reliably know the longitudinal direction.

  If it is made of concrete, the user will feel the sand by stroking with sand or other irregularities.However, concrete is usually present outdoors and is it a linear projection for guiding the visually impaired? Or, I'm worried that I'm not sure if it's another structure, such as a wall.

  A cane tip is attached to the tip of the white cane, and a thick cane with a diameter of about 40 mm is used for sliding the walking surface. However, there is a case where the walking surface is slid with a thin cane having a diameter of about 10 mm, and there is also a problem that the contact with the linear projection becomes uncertain depending on the type of the cane. This is because the thin cane hits the side of the linear projection, while the thick cane hits the upper corner from the side to the top.

  The present invention makes it possible to easily distinguish a walking surface from a walking surface, so that a user of a white cane can recognize, in a short time, a linear projection for guiding a visually impaired person, and can understand the longitudinal direction and can be convinced. It is an object of the present invention to be able to confirm the guidance direction by holding the terminal.

The linear projection for guiding a visually impaired person according to the present invention has an upper surface (3a) and a side surface ( 3b), and is stretched outward from the upper surface (4a) higher than the upper surface (3a) and from the side surface (3b). A projection (4) having a projecting side surface ( 4b) is provided .

  According to the present invention, if the side surface of the linear protrusion is stroked with a white cane, a characteristic vibration due to a step occurs regardless of the tip of the cane, and can be easily distinguished from the walking surface, and the user can quickly In addition to being able to recognize the linear projection for guiding the visually impaired, the longitudinal direction is known, and the guiding direction can be confirmed with certainty.

It is a perspective view showing a 1st embodiment. It is a perspective view showing a 2nd embodiment.

[First Embodiment]
In the first embodiment shown in FIG. 1, for example, a linear projection 2 laid on a road fits within 300 mm in length and width. The linear projection 2 has a shape in which thin projections 4 are arranged at equal intervals perpendicular to the longitudinal direction on the surface of a linear projection 3 having the same shape as a conventional standard. FIG. 1 shows an example in which four linear protrusions 2a to 2d having the same shape are arranged side by side to form a linear protrusion 2.

  The protrusion 4 is provided from the upper surface 3a of the linear protrusion 3 to the left and right side surfaces 3b. Left and right side surfaces 4b are formed from the upper surface 4a of each projection 4, and corners 4c with them are also formed.

  Next, an example of use will be described with reference to FIG.

  The white cane 5 is provided with a thick cane tip 5a for sliding use. When the cane tip 5a is applied to the linear projection 2a and the cane tip 5a stroks the side surface 4b, the cane tip 5a falls over the projection 4 and then intermittently, as shown as a locus V, and intermittently. A characteristic impact vibration is generated at the linear projection 3 at a rhythm of time corresponding to the length interval. A part of the vibration is transmitted through the white stick 5 and a part is a sound, which is recognized by the user. As a result, the user knows the longitudinal direction and can check the guiding direction L.

  The thick cane tip 5a comes into contact with the projection 4 at a corner 4c between the upper surface and the side surface. If the thin cane tip 5a is used, it hits the side surface 4b, but it does not change to hit the projection 4, and the same characteristic vibration can be obtained.

  Next, details of the configuration will be described. FIG. 1 shows an example in which the protrusions 4 are provided to form a step, but the present invention is not necessarily limited to the protrusions 4 and may be any steps forming irregularities such as grooves.

  It is general to provide unevenness on the upper surface of the linear projection 3 for the purpose of preventing slippage. Although only the protrusion 4 is illustrated in FIG. 1, another unevenness may be added to the upper surface 3 a of the linear protrusion 3.

  Next, details of the shape will be described. FIG. 1 shows the projections 4 which are arranged at regular intervals in a direction perpendicular to the longitudinal direction. The projections 4 may be arranged periodically, and may be arranged diagonally as long as they do not interfere with drainage. However, a characteristic vibration can be obtained.

  In FIG. 1, the upper surface 4a of the projection 4 is drawn to be connected to the left and right, but may be divided at the center. An angle 4c formed between the upper surface 4a and the side surface 4b of the projection 4 is securely formed. ButImportant.

  If the height of the projections 4 is about 0.3 to 1 mm, vibration with sufficient strength can be obtained. The width of the projection 4 may be as high as the height, but may be set to a value corresponding to mechanical strength and wear.

  Regarding the generated vibration, the frequency and rhythm are determined by the interval at which the projections 4 are provided and the speed of stroking with the cane tip 5a. If the interval between the projections 4 is set to 3 to 20 mm, it is easy for the user to hear and characteristic. Can generate sound.

  The intervals at which the protrusions 4 are provided can be selected depending on environmental factors due to the uneven shape of the walking surface 1 and the intention of transmitting the walking speed, and may be in accordance with standards. For example, the outdoor walking surface 1 having many irregularities is large, and the user may walk fast. Therefore, a wide interval of about 10 to 20 mm is preferable. On the indoor walking surface 1 with little unevenness, the user wants the user to walk calmly and slowly, so that a narrow interval of about 3 to 5 mm is preferable.

  The projection 4 does not continue to the walking surface 1 (the area where the user walks), but it is not necessary because the cane tip 5a of the white cane 5 does not hit, and the dirt and the like accumulate at the boundary. This is to prevent it. Of course, even if the protrusion 4 continues to the walking surface 1, the effect of the present invention is not impaired.

  The side surface 4b of the protrusion is formed at an angle steeper than 45 degrees, for example, at an angle of 60 degrees, so that a steep rising angle 4c is formed. For this reason, there is an advantage that a sharp stimulus is obtained, and it is easy to find with the foot or the white cane 5. Further, since the contact area is smaller than that of the original side surface 3b, even if the foot or the white stick 5 sticks, the weight can be reduced, and there is an advantage that the user is less likely to fall due to a stumbling.

  In the indoor linear projection 3 for guiding the visually impaired, there is also a design in which the height of the projection is made lower than the conventional standard, for example, about half as high as 2.5 mm, in order to make it easier to walk. There was a problem that the touch of the tip of the cane became small and it was hard to be found. However, if the projection 4 of the present invention is applied, it is easily found. Conversely, with the projections 4 of the present invention, it is possible to further reduce the height of the linear projections 3 to make it easier to walk.

[Second embodiment]
FIG. 2 shows a linear projection 6a according to a second embodiment of the present invention, in which the linear projection 7 has a shape that is easy to walk, and a linear projection 6a according to the second embodiment of the present invention, which is 300 mm in length and width. An example is shown below.

  The shape of the linear projection 7 shown in FIG. 2 is described in Japanese Patent No. 1540412 and Japanese Patent No. 1540413.

  The linear projection 7 has a width of 75 mm, which is the same as that of the conventional standard, and has a width of 75 mm, which is the same as that of the conventional standard. The two grooves are provided in the longitudinal direction to improve drainage. Of the three projections formed, the corners of the left and right projections are rounded to reduce sticking when stepping on the foot. It is designed based on the idea of making a person (for example, a user of the white stick 5) easy to walk. The linear projection 7 has a use purpose of being able to walk to the end when stepped on. When the user reaches the end, the presence of the end is determined based on whether or not there is a linear projection in the next area 300 of 300 mm in length and width.

  Explaining the details of the second embodiment, in the linear projection 7, right and left projections 7c are formed on the left and right of the central projection 7a via grooves 7b, and the outer corners thereof are formed by the chamfered portion 7ca. After being rounded, thin projections 8 are arranged at equal intervals perpendicular to the longitudinal direction over the three projections.

  The central projection 7a has a different dimension as compared with the linear projection 3 of the first embodiment, but the shape is similar. In addition, since the central projection 7a has the same shape as the linear projection 3 on the groove 7b side, the description is omitted.

  The portions of the protrusions 8 provided on the left and right protrusions 7c are formed from the outer surface 8c to the upper surface 8a via corners 8b located at the chamfered portions 7ca.

  The linear projection 7 according to the second embodiment has a reduced feeling of contact with the foot or the white cane 5 due to the step at the end lowered by the chamfered portion 7ca, and is hard to be found, but the cane tip 5a hits the projection 8. It is easily found by touch.

  FIG. 2 shows a form in which the linear projection 6a is formed as a single guide plate and is attached to the walking surface 1. However, the linear projection 6a is formed as a block integrated with a pedestal in the shape of the area 6 of the linear projection. It can also be embedded in the surface 1.

DESCRIPTION OF SYMBOLS 1 Walking surface 2 Linear projection part 2a, 2b, 2c, 2d Linear projection 3 Linear projection 3a Upper surface 3b Side surface 4 Projection 4a Upper surface 4b Side surface 4c Angle 5 White stick 5a Stick tip 6 Area 6a Linear projection 7 Linear projection 7a Central projection 7b Groove 7c Left and right projections 7ca Chamfered portion 8 Projection 8a Top surface 8b Corner 8c Outer side surface L Guide direction V Locus

Claims (2)

In a linear projection for guiding a visually impaired person having an upper surface (3a) and a side surface ( 3b),
A visual impairment comprising a projection (4) having an upper surface (4a) higher than the upper surface (3a) and a side surface ( 4b) projecting outward from the side surface (3b). Linear projections for guiding people. An induction plate provided with the linear projection according to claim 1 on an upper surface.

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