JP2021118798A - Braille stud - Google Patents

Abstract

To provide a braille stud that is hard to come off easily after installation, and is hard to leave trace in the floor material, while facilitating installation with a simple configuration.SOLUTION: A braille stud includes a rivet body and an engageable rivet acceptor. A base and a shaft part to set up from the base are provided to the rivet body. The rivet acceptor is provided with a cylindrical bearing where the base part and the shaft part are inserted therein. The bearing is provided with an inner wall part constituting an inner circumferential surface of the bearing, an outer wall for constituting an outer circumferential surface of the bearing, a ceiling for connecting ends together in the direction to set up the inner wall part and the outer wall part, and a cavity provided between the inner wall part and the outer wall part. A protrusion is provided in the inner wall part, In the shaft part, there is provided a groove engageable with the protrusion when the shaft part is inserted into the bearing.SELECTED DRAWING: Figure 4

Description

The present invention relates to a Braille stud that is configured so that a wire stud, a stud, or the like can be easily attached to a flooring material such as a carpet or a carpet, and the stud cannot be easily removed after the attachment.

Conventionally, Braille studs for carpets are composed of a stud that is inserted from the front side of a sheet-shaped flooring material and a receiver that is fitted and attached to the stud from the back side that faces the stud. It is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-51835

According to such Braille studs, it is possible to improve the work efficiency when attaching the Braille studs and the receiver to the sheet-shaped flooring material (for example, tile carpet or the like). However, as a result of focusing on work efficiency, there is a problem that the studs are easily removed after installation. In addition, since the studs are provided with protrusions that bite into the tile carpet, there is a problem that when the studs are removed, marks are left on the tile carpet and the tile carpet is easily scratched.

In view of the above-mentioned problems, it is an object of the present invention to provide a Braille stud that is easy to install with a simple structure, is hard to come off after mounting, and is hard to leave a mark on the floor material.

In order to achieve the above-mentioned object, the present invention is configured as follows.
Hereinafter, the feature points of the present invention will be described with reference to the embodiments of the invention shown in the drawings. The following reference numerals and descriptions indicate the symbols and names of the configurations in the embodiments of the invention corresponding to the configurations of the present invention, and do not limit the technical scope of the present invention.

The invention according to claim 1 is a braille stud 10 including a stud body (dot stud body 11, wire stud body 42) and a stud bearing 12 that can be fitted with the stud body, and the stud. The body includes a base portion (main body portion 14, main body portion 43) and a shaft portion 23 erected from the base portion, and the stud receiver is erected from the base portion 29 and the base portion 29 and said. A tubular bearing portion 30 into which a shaft portion 23 is inserted is provided, and the bearing portion 30 constitutes an inner wall portion 34 forming an inner peripheral surface of the bearing portion 30 and an outer peripheral surface of the bearing portion 30. A hollow portion (second) provided between the outer wall portion 33, the ceiling portion 31 that connects the inner wall portion 34 and the ends of the outer wall portion 33 in the vertical direction, and the inner wall portion 34 and the outer wall portion 33. The inner wall portion 34 is provided with a convex portion (convex 36), and the shaft portion 23 is provided with the convex portion 35) when the shaft portion 23 is inserted into the bearing portion 30. It is characterized in that a groove portion (first groove portion 24) that can be fitted with the bearing is provided.

According to the Braille stud according to the invention according to claim 1, when the shaft portion erected from the base portion of the stud body is inserted into the bearing portion of the stud receiver, the convex portion provided on the inner wall portion of the bearing portion. Since the portion is fitted into the groove portion provided on the shaft portion of the stud body, the Braille stud can be easily attached and can be prevented from coming off after the attachment. Further, since neither the stud body nor the stud receiver is provided with a protrusion that bites into the floor material to which the Braille stud is attached, it is difficult to leave a mark even if the Braille stud is attached to the floor material.

Further, in the Braille stud 10 according to the invention of claim 2, the hollow portion is formed so as to extend from the base portion 29 to the height position of the ceiling portion 31, and the said in the inner wall portion 34. The convex portion is provided at a position lower than the height position of the ceiling portion 31, and the groove portion is provided at a position corresponding to the convex portion on the shaft portion 23.

According to the Braille stud according to the invention according to claim 2, since the convex portion is provided at a position lower than the height position of the ceiling portion, the inner wall portion is oriented toward the hollow portion when the Braille stud is attached. It can be elastically deformed, the Braille studs can be attached more easily, and the labor required for attaching the Braille studs can be reduced.

According to the present invention, it is possible to provide a Braille stud that is easy to install with a simple structure, is hard to come off after mounting, and is hard to leave a mark on the floor material.

It is a perspective view of the point stud body and the stud receiver in the 1st Embodiment of this invention. It is (a) bottom view, (b) plan view, (c) front view of the point stud body in 1st Embodiment of this invention. It is (a) bottom view, (b) plan view, (c) front view of the stud receiver in the 1st Embodiment of this invention. It is a front sectional enlarged view of the point stud body and the stud receiver in the 1st Embodiment of this invention. It is (a) an upper perspective view and (b) a front sectional view which shows the attachment example of the point stud body and the stud receiver in the 1st Embodiment of this invention. It is a perspective view of the line stud body and the stud receiver in the 2nd Embodiment of this invention. It is (a) plan view, (b) bottom view, (c) front view of the line stud body in the 2nd Embodiment of this invention. It is (a) an upper perspective view and (b) a front sectional view which shows the attachment example of the wire stud body and the stud receiver in the 2nd Embodiment of this invention.

(First Embodiment of the present invention)
The first embodiment of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the dimensions, materials, other specific numerical values, etc. in the following embodiments are merely examples for facilitating the understanding of the invention, and the present invention is not limited unless otherwise specified.

As shown in FIG. 1, the Braille stud 10 in the first embodiment is configured to be fitted and installed so as to sandwich the panel-shaped Braille stud mat 13 between the plurality of Braille studs 11 and the stud receiver 12. Has been done.

As shown in FIGS. 2 and 4, the point stud body 11 has a disk-shaped main body portion 14 and a substantially cylindrical leg portion 15 extending downward from the center of the bottom surface of the main body portion 14. ..

The main body portion 14 has a top surface portion 16 and a bottom surface portion 17, and has a substantially truncated cone shape in which the tip is narrowed from the bottom surface portion 17 toward the top surface portion 16 in front view (FIG. 2 (e)). reference).

As shown in FIGS. 2 and 4, the top surface portion 16 has a top surface 18 formed in a circular plane shape and a non-slip portion 19 provided on the top surface 18. In the present embodiment, the non-slip portion 19 is configured by arranging five disc-shaped members in a cross shape, but the present invention is not limited to this, and various shapes and arrangements may be used. Further, the top surface 18 does not have to be provided with the non-slip portion 19.

As shown in FIGS. 2 and 4, the bottom surface portion 17 is offset by one step toward the top surface 18 from the first bottom surface 20 and the first bottom surface 20 having a circular plane shape having a diameter larger than that of the top surface 18. It is provided and has a circular flat second bottom surface 21 having a diameter larger than that of the top surface 18 and smaller than that of the first bottom surface 20.

The inner circumference of the first bottom surface 20 and the outer circumference of the second bottom surface 21 are connected by a connecting wall portion 22, and the connecting wall portion 22 is narrowed upward as shown in FIG. 2 (f). It has a tapered shape.

As shown in FIGS. 2 and 4, the legs 15 are bored in a substantially columnar shaft portion 23 extending downward from the substantially central portion of the second bottom surface 21 and the peripheral surface of the shaft portion 23. It has a first groove portion 24 and a second groove portion 25, which are recesses. The first groove portion 24 is provided for fitting with the stud receiver 12 described in detail later, and the second groove portion 25 enhances the design and distinctiveness of the point stud body 11 (or the wire stud body 42 described later). It is provided for this purpose.

As shown in FIGS. 2 and 4, a shaft wall portion 26 facing the connecting wall portion 22 is provided on the root side of the shaft portion 23. The shaft wall portion 26, the connecting wall portion 22, and the second bottom surface 21 form a first recess 27 in the bottom surface portion 17 of the main body portion 14. Further, the edge on the tip end side of the shaft portion 23 is chamfered to form a first tapered portion 28.

In the present embodiment, the first groove portion 24 and the second groove portion 25 are grooves having substantially the same dimensions (substantially the same width and substantially the same depth). The first groove portion 24 and the second groove portion 25 are not limited to the same dimensions, and may have different dimensions.

Further, since the leg portion 15 has the first tapered portion 28 at its tip, the leg portion 15 is configured to be easily fitted to the stud receiver 12, which will be described in detail later. On the other hand, the edges of the first groove portion 24 and the second groove portion 25 are not chamfered and have a square shape so as to be hard to come off after being fitted to the stud receiver 12. (See FIGS. 2 (e) and 2 (f)).

As shown in FIGS. 3 and 4, the stud receiver 12 includes a thin disk disk-shaped base portion 29 and a cylindrical bearing portion 30 projecting upward from a substantially central portion of the base portion 29. Have.

As shown in FIGS. 3 and 4, the bearing portion 30 has a cylindrical shape having a shaft hole 32 that vertically penetrates the center of the ceiling portion 31 that is the top surface of the bearing portion 30, and has a shaft hole 32 (bearing). It has an outer wall portion 33 forming an outer peripheral surface of the portion 30) and an inner wall portion 34 forming an inner peripheral surface of the shaft hole 32 (bearing portion 30).

A second recess 35 is provided between the outer wall portion 33 and the inner wall portion 34. The second recess 35 is formed so as to surround the shaft hole 32 as a hollow region having a gap having a predetermined width and a predetermined height H (see FIG. 4).

As shown in FIGS. 3 and 4, the inner wall portion 34 is provided with a ridge 36 projecting so as to be convex toward the center of the shaft hole 32. The ridge 36 is located at a position lower than the ceiling portion 31 on the inner wall portion 34 (that is, at a position (H> h) on the inner wall portion 34 where the height h is lower than the height H of the second recess 35). It is provided. By doing so, when the point stud 11 is attached to the stud receiver 12, the inner wall portion 34 can be elastically deformed toward the second recess 35, and the point stud 11 can be easily attached to the stud receiver 12. ..

As shown in FIGS. 3 and 4, the base portion 29 is chamfered on the edge portion 37 forming the side peripheral surface to form the second tapered portion 38. The second tapered portion 38 makes it possible to moderate the swelling of the Braille stud mat 13 when the Braille stud 10 is installed.

As shown in FIGS. 1 and 5, the stud mat 13 in the first embodiment is a rug such as a so-called tile carpet laid in a public facility such as a hospital or a nursing facility, and is a resin made of rubber or the like. A filamentous body 40 formed of synthetic fibers or the like is planted on the surface of the sheet 39. The point stud mat 13 is provided with openings 41 arranged in 5 rows and 5 columns based on JIS standards and the like. By attaching the point stud body 11 to the openings 41, roads intersect with blind people and the like. It is designed to function as a point warning block for the visually impaired to call attention to the fact that it is there and to warn. The arrangement of the openings 41 is not limited to 5 rows and 5 columns, and may be appropriately changed depending on the intended use and the number and type of Braille studs 10 to be used.

When attaching the point stud body 11 configured as in the present embodiment to the point stud mat 13, first, the point stud body 11 and the stud receiver 12 are prepared according to the number of openings 41 of the point stud mat 13. Since the tile carpet used as the stud mat 13 does not have an opening 41, a hole is made in the tile carpet in advance to provide an opening 41 to form the stud mat 13. Then, the bearing portion 30 of the stud receiver 12 is fitted from the back surface side of the resin sheet 39. Since the opening 41 of the stud mat 13 is opened in a circular shape slightly larger than the outer circumference of the bearing portion 30, the bearing portion 30 is exposed from the opening 41. In this state, the shaft portion 23 of the stud stud body 11 is inserted into the bearing portion 30 from the surface side of the stud mat 13 and temporarily fixed.

Next, when the temporarily fixed point stud 11 is pushed in from above, the first tapered portion 28 of the shaft portion 23 and the ridge 36 come into contact with each other, and the ridge 36 spreads outward along the first tapered portion 28. The inner wall portion 34 is elastically deformed in the direction of the second recess 35. When the ridge 36 reaches the position of the first groove portion 24 by further pushing the point stud body 11, the elastically deformed inner wall portion 34 returns to the original position, and as shown in FIG. 5, the point stud body 11 and the stud receiver The body 12 is fitted and attached to the point stud mat 13.

In the state where the point stud body 11 and the stud receiver 12 are attached to the point stud mat 13, the tip of the bearing portion 30 enters the first recess 27 as shown in FIG. 5 (b), and the shaft wall portion. The 26 and the inner wall portion 34 are in contact with each other. In this way, in addition to fitting the ridge 36 and the first groove portion 24, the shaft wall portion 26 and the inner wall portion 34 come into contact with each other, so that the holding force can be increased.

Similarly, when the point stud body 11 and the stud receiver 12 are attached to the point stud mat 13, the second bottom surface 21 and the ceiling portion 31 come into contact with each other as shown in FIG. 5 (b). It is designed to make surface contact. As a result, when the point stud body 11 is stepped on, the pressure applied from above can be received on the surface, and the point stud body 11 can be prevented from wobbling and coming off easily.

Further, since the first bottom surface 20 that comes into contact with the thread-like body 40 of the point stud mat 13 in a state where the point stud body 11 and the stud receiver 12 are attached to the point stud mat 13, the point stud body 11 is flat. This makes it possible to prevent the stud mat 13 from being damaged.

(Second Embodiment of the present invention)
Next, the second embodiment of the present invention will be described with reference to FIGS. 6 to 8. In this second embodiment, an embodiment in which the point stud body 11 of the first embodiment is a line stud body 42 as shown in FIG. 6 will be described. In the following description, the configurations described in the first embodiment are omitted as they have the same reference numerals.

As shown in FIG. 6, the wire stud body 42 has a rectangular main body portion 43 and four substantially cylindrical leg portions 15 extending downward from the bottom surface of the main body portion 43.

The main body portion 43 has a top surface portion 44 and a bottom surface portion 45 having a substantially rectangular shape in the top view (see FIG. 7C), and the tip is narrowed from the bottom surface portion 45 toward the top surface portion 44 in the front cross-sectional view. It has a substantially quadrangular pyramid shape (see FIG. 7 (e)).

The top surface portion 44 has a substantially rectangular top surface 46. In the present embodiment, the top surface 46 of the top surface portion 44 is a flat surface, but the present invention is not limited to this. For example, as in the first embodiment, the non-slip portion 19 may be provided.

As shown in FIG. 7, the bottom surface portion 45 is formed of a substantially rectangular flat surface, and has a rectangular first bottom surface 47 larger than the top surface 46 and one step toward the top surface 46 from the first bottom surface 47. It is provided with an offset, and has a rectangular second bottom surface 48 that is larger than the top surface 46 and smaller than the first bottom surface 47. The second bottom surface 48 may be the same size as the top surface 46.

The inner circumference of the first bottom surface 47 and the outer circumference of the second bottom surface 48 are connected by a connecting wall portion 49, and the connecting wall portion 49 is narrowed upward as shown in FIG. 7 (f). It has a tapered shape.

As shown in FIG. 7, the bottom surface portion 45 is provided with a total of three leg portions 15, one at each end in the longitudinal direction and one at the center.

As shown in FIGS. 6 and 8, the wire stud mat 50 in the second embodiment is a rug such as a so-called tile carpet laid in a public facility such as a hospital or a nursing facility, and is a resin made of rubber or the like. A filamentous body 40 formed of synthetic fibers or the like is planted on the surface of the sheet 39. The wire stud mat 50 is formed with openings 51 arranged in 4 rows and 3 columns based on JIS standards and the like. By attaching the wire stud body 42 to the openings 51, a visual indication of a moving direction to a blind person or the like is shown. It is designed to function as a linear guidance step for the disabled. The arrangement of the openings 51 is not limited to 4 rows and 3 columns, and can be appropriately changed according to the intended use and the number and type of Braille studs 10 to be used.

When attaching the wire stud 42 configured as in the present embodiment to the wire stud mat 50, first, the wire stud 42 and the stud receiver 12 are prepared according to the number of openings 51 of the wire stud mat 50. Then, the bearing portion 30 of the stud receiver 12 is fitted from the back surface side of the resin sheet 39. Since the opening 51 of the wire tack mat 50 is opened in a circular shape slightly larger than the outer circumference of the bearing portion 30, the bearing portion 30 is exposed from the opening 51. In this state, the shaft portion 23 of the wire stud body 42 is inserted into the bearing portion 30 from the surface side of the wire stud mat 50 and temporarily fixed.

Next, when the temporarily fixed wire stud 42 is pushed in from above, the first tapered portion 28 of the shaft portion 23 and the ridge 36 come into contact with each other, and the ridge 36 spreads outward along the first tapered portion 28. The inner wall portion 34 is elastically deformed in the direction of the second recess 35. When the ridge 36 reaches the position of the first groove portion 24 by further pushing the wire stud body 42, the elastically deformed inner wall portion 34 returns to the original position, and as shown in FIG. 8, the wire stud body 42 and the stud receiver The body 12 is fitted and attached to the wire tack mat 50.

In the state where the wire stud body 42 and the stud receiver 12 are attached to the wire stud mat 50, as shown in FIG. 8 (b), the tip of the bearing portion 30 enters the first recess 27, and the shaft wall portion. The 26 and the inner wall portion 34 are in contact with each other. In this way, in addition to fitting the ridge 36 and the first groove portion 24, the shaft wall portion 26 and the inner wall portion 34 come into contact with each other, so that the holding force can be increased.

Similarly, when the wire stud body 42 and the stud receiver 12 are attached to the wire stud mat 50, the second bottom surface 48 and the ceiling portion 31 come into contact with each other as shown in FIG. 8 (b). It is designed to make surface contact. As a result, when the wire stud body 42 is stepped on, the pressure applied from above can be received on the surface, and the wire stud body 42 can be prevented from wobbling and coming off easily.

Further, since the first bottom surface 20 that comes into contact with the thread-like body 40 of the wire stud mat 50 in a state where the wire stud body 42 and the stud receiver 12 are attached to the wire stud mat 50 is flat, the wire stud body 42 This makes it possible to prevent the wire tack mat 50 from being damaged.

In each of the above embodiments, the second groove portion 25 is not intentionally used, and is configured to enhance the design and distinctiveness of the point stud body 11 and the wire stud body 42, but the present invention is not limited to this. For example, the ridge 36 of the stud receiver 12 may be configured to fit the second groove 25, or another ridge 36 may be added to match the second groove 25 to fit the first groove 24. , It may be fitted in both of the second groove portions 25. If the structure is such that both the first groove portion 24 and the second groove portion 25 are fitted together, it is more difficult to come off after mounting, which is preferable.

Further, in each of the above embodiments, the shaft portion 23 has a substantially cylindrical shape and the shaft hole 32 also has a circular opening. The opening may have a matching shape.

Further, in each of the above embodiments, the configuration for fitting the point stud body 11 (wire stud body 42) and the stud receiver 12 is a combination of an annularly continuous ridge and a dent into which the ridge fits. However, the present invention is not limited to this, and a combination of a plurality of protrusions arranged in an annular shape and a fitting hole into which the protrusions are fitted may be used.

Although various embodiments to which the present invention has been applied have been described above, it goes without saying that appropriate changes can be made without departing from the spirit of the present invention.

10 Braille studs 11 studs 12 studs 13 studs mat 14 body 15 legs 16 top 17 bottom 18 top 19 non-slip 20 1st bottom 21 2nd bottom 22 connecting wall 23 shaft 24 1st groove 25 2nd groove 26 Shaft wall 27 1st recess 28 1st taper 29 Base 30 Bearing 31 Ceiling 32 Shaft hole 33 Outer wall 34 Inner wall 35 2nd recess 36 Convex 37 Edge 38 2 Tapered part 39 Resin sheet 40 Thread-like body 41 Opening 42 Wire stud 43 Main body 44 Top surface 45 Bottom surface 46 Top surface 47 First bottom surface 48 Second bottom surface 49 Connecting wall part 50 Wire stud mat 51 Opening

Claims (2)

A Braille stud having a stud body and a stud receiver that can be fitted with the stud body.
The stud body
At the base,
A shaft portion erected from the base portion is provided.
The stud receptor is
With the base part
It is provided with a tubular bearing portion that is erected from the base portion and into which the shaft portion is inserted.
The bearing portion is
The inner wall portion that constitutes the inner peripheral surface of the bearing portion and
The outer wall portion that constitutes the outer peripheral surface of the bearing portion and
A ceiling portion that connects the inner wall portion and the end portions of the outer wall portion in the vertical direction, and a ceiling portion.
A hollow portion provided between the inner wall portion and the outer wall portion is provided.
A convex portion is provided on the inner wall portion.
A Braille stud characterized in that the shaft portion is provided with a groove portion that can be fitted with the convex portion when the shaft portion is inserted into the bearing portion. The hollow portion is formed so as to extend from the base portion to the height position of the ceiling portion.
A claim characterized in that the convex portion is provided at a position lower than the height position of the ceiling portion on the inner wall portion, and the groove portion is provided at a position corresponding to the convex portion on the shaft portion. Braille studs described in item 1.

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