JP2002129525A - Attaching structure for braille rivet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attaching structure for a braille rivet having improved workability and enhanced durability. SOLUTION: When attaching a braille rivet main body 2 to a carpet F1 or the like, a base board 15 arranged with many attaching parts 16 longitudinally and laterally is provided, and a plurality of rivet main bodies 2 can be attached to the base board 15 by attaching one rivet main body 2 to one or a plurality of rowed attaching parts 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is applied to the entrances and exits of buildings, indoor floors, carpets, etc. used by hotels, hospitals, exhibition halls, department stores and other unspecified and large numbers of people.
The present invention relates to a mounting structure of a Braille tack that enables a visually impaired person to confirm the presence of the sole with a tactile sensation.

[0002]

2. Description of the Related Art Braille tacks of this type are provided with a function for guidance by arranging a plurality of studs formed in a dot or a line on a floor or a carpet vertically and horizontally. is there. For example, a Braille tack disclosed in Japanese Patent Application Laid-Open No. 9-21118 has a receiving seat 51 as shown in FIG.
And a sealing member 52. The receiving seat 51 has a flat bottom surface 53, a slope 54 whose thickness increases from the periphery toward the center, and a top surface 55 parallel to the bottom surface 53.
A concave portion 56 having a predetermined depth formed in a central portion of the top surface 55;
The sealing member 52 is formed in a plate shape by a member different from the receiving seat 51, and is fitted into the recess 56.

FIG. 9A shows an example in which Braille tacks are attached to a hard floor F2 such as a stone or a tile, which is inserted into a pilot hole 58 formed in the floor F2. A nut 59 is embedded, the receiving seat 51 is placed on the floor surface F2, a screw 60 is inserted into the through hole 57, screwed into the insert nut 59, and then the sealing member 52 is fitted into the recess 56 and adhered. Had become. In addition, when fixing with the screw 60 in this way, since the Braille tack may come off or rattle due to the loosening of the screw 60, in the actual construction, in addition to the screw fixing, the back surface of the Braille tack is attached to the floor surface F2. It is common to bond with an adhesive.

As shown in FIG. 9 (b), when a Braille tack is attached to a flexible sheet F1 such as a carpet, a sandwiching member 61 is provided on the back side of the flexible sheet F1. Then, the female screw 63 of the sandwiching member 61 is inserted into the insertion hole 62 formed in the flexible sheet F1, and the screw 60 is inserted into the through hole 57 with the receiving seat 51 placed on the flexible sheet F1. Then, the sealing member 52 is fitted into the recess 56 and adhered.

[0005]

The holding member 61 shown in FIG. 9B is provided in correspondence with one Braille tack, so that when a plurality of Braille tacks are attached, one clip Bracket is attached. A complicated operation such as setting one sandwiching member 61 on the back surface side of the flexible sheet F1 and inserting the female screw 63 into the through hole 57 was necessary, which led to an increase in construction time. Further, since the plurality of Braille tacks are individually attached to the flexible sheet F1, positional shifts occur with each other, and the flexible sheets F1 are broken through the insertion holes 62 due to the positional shifts. As a result, there was a problem in terms of durability, such as the Braille tack coming off. In particular, in the above-described conventional technique, the contact area between the sandwiching member 61 and the back surface of the flexible sheet F1 is small, and the holding force of the Braille tack is also small, so that the above-described displacement and detachment are likely to occur.

Although the above-mentioned conventional publication discloses a long pinching member capable of attaching a plurality of point-type braille tacks in a line, the flexible sheet F1 of the pinching member is still disclosed. Has a small contact area with the rear surface of the flexible sheet and the possibility that the pinching member and the Braille tack are displaced as a whole with respect to the flexible sheet is high, and the above problem has not been solved. In addition, the receiving seat 5 for the Braille studs
No. 1 is formed by cutting a slope 54, a concave portion 56, and the like on a thick plate material or a block material such as brass or stainless steel. It is disadvantageous in production and has the drawback of increasing costs.

[0007] Further, the heavy weight makes handling such as transportation difficult, and in particular, due to the nature of Braille tacks in which a large number of pieces are simultaneously constructed, the problem of the increase in weight greatly affects workability. Was. On the other hand, as shown in FIG. 9A, when a Braille tack is attached to a floor F2 of a tile or the like via an adhesive, the Braille tack is firmly attached to the floor with a structural adhesive or the like. Since they were bonded, they were susceptible to fatigue due to external impact, which was disadvantageous in terms of durability.

Further, since the bottom surface 53 of the receiving seat 51 is formed as a flat surface, there is a problem that the adhesive applied to the bottom surface 53 spreads between the floor surface F2 and protrudes from the receiving seat 53. In some cases, this significantly impairs the appearance and requires a finishing operation to remove the protruding adhesive. SUMMARY OF THE INVENTION The present invention has been made to solve the problem that has occurred when a Braille tack is attached to a flexible flooring material, and it is possible to improve the workability and improve the durability. An object of the present invention is to provide a mounting structure for a braille stud that can be used.

It is another object of the present invention to make the braille studs easy to work and lightweight.

[0010]

The present invention employs the following technical means to achieve the above object. That is, the mounting structure of the Braille tack according to the present invention includes a base plate disposed on the back side of a flexible flooring such as a carpet, and the base plate includes a large number of mounting portions arranged in a matrix. A plurality of Braille tacks can be mounted by attaching one Braille tack to one or a plurality of rows of the mounting portion.

As described above, by attaching a plurality of Braille tacks to the vertical and horizontal mounting portions formed on the base plate, each Braille tack can be mounted at an appropriate position without displacement. In addition, since the contact area of the base plate with the flexible flooring material is increased, the displacement as a whole is reduced, and the flexible flooring material is broken and the braille studs come off. Can be prevented. As the configuration of the Braille stud, an inclined portion inclined inwardly upward from the outer peripheral edge portion, a top portion connected to the upper end of the inclined portion, and a concave portion recessed below the top portion are formed by bending a plate material. It is preferable to have a rivet main body.

This makes it possible to form the rivet body simply and inexpensively by, for example, press working of a plate material without the need for machining such as cutting, so that it is suitable for mass production and can be reduced in weight. . Further, it is preferable that the top portion is constituted by a bent portion which is bent at an acute angle between the upper end of the inclined portion and the side wall portion of the concave portion. (Especially, bending rigidity) can be secured.
When the braille stud (tack main body) having the above configuration is attached to a hard floor surface such as a tile or a stone via an adhesive, a convex portion corresponding to the concave portion is formed on the back surface side of the stud main body. Since a groove surrounding the periphery of the convex portion is formed between the portion and the outer peripheral portion, if an adhesive is applied to the convex portion, the adhesive protruding from the convex portion may be formed in the groove portion. By intruding into the inside, it is less likely to protrude from the outer peripheral edge portion, the appearance is less damaged, and the finishing operation can be simplified.

Further, by using an elastic adhesive as the adhesive or by interposing a plate made of a synthetic resin material or the like between the tack main body and the floor surface, it is possible to absorb an external impact. Fatigue strength and durability are improved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 2 to 4 show a Braille tack 1A according to the embodiment of the present invention. This Braille tack 1A
Is a linear shape (long and narrow shape) with both ends in the longitudinal direction rounded in an arc shape
And is constituted by a tack main body 2 and a cap member 3. The stud body 2 is formed of a metal material such as stainless steel, an aluminum alloy, or a copper alloy, and as shown in FIG. It has a top portion 6 that is bent inward from the upper end to be continuous, and is approximately horizontal, and a concave portion 7 that is formed by being bent downward in a U-shape at the center of the top portion 6.

The inclined portion 5, the top portion 6, and the concave portion 7
Is formed by pressing a plate material having a predetermined thickness, and the tack main body 2 can be easily and inexpensively manufactured with almost no machining such as cutting. The weight can be reduced. In addition, the concave portion 7 has a function as a rib, and the strength (particularly, bending rigidity) of the tack main body is enhanced. The stud body 2 is formed by bending the plate material to form the concave portion 7.
Is formed, a corresponding convex portion 8 is formed on the back surface side, and the convex portion 8 and the outer peripheral edge portion 4 are further formed.
(A back surface side of the inclined portion 5 and the top portion 6), a groove portion 9 is formed so as to surround the outer periphery of the convex portion 8. The lower surface of the projection 8 is disposed slightly above the outer peripheral edge 4.

In the concave portion 7 (convex portion 8), the stud body 2 is
A plurality of (three) insertion holes 10 into which screws 11 for attaching to the holes are inserted are formed. The insertion hole 10 may be punched and formed at the same time as the pressing of the tack main body 2, or may be formed by stamping or drilling after pressing the tack main body 2. The stud body 2 is made of a bent plate material, and has an inclined portion 5, a top portion 6, a concave portion 7 (a convex portion 8).
As long as the groove 9 is formed, it is also possible to form the rivet main body 2 with a synthetic resin material without using press working. In this case, the tack main body 2 can be formed.

The cap member 3 is made of a plate material such as a synthetic resin material such as nylon or a metal material such as stainless steel or aluminum, and has an oval shape adapted to the shape of the concave portion 7. It is possible and has a thickness equal to or slightly smaller than the depth of the recess 7. The cap member 3 may be formed of the same material as the tack main body 2 or may be formed of a different material. Also, the surface of the cap member 3 may be formed with irregularities for preventing slip. When attaching the Braille studs 1 to a flexible flooring F1 such as a carpet, a base plate 15 as shown in FIGS. 1 to 3 is used.

The base plate 15 is formed of a thin plate made of metal or hard synthetic resin having a square shape in a plan view, and has a large number of mounting portions 16 protruding from the surface thereof. , Arranged vertically and horizontally (3 × 4 in the example shown). Mounting part 16 of this embodiment
Is a cylindrical body 1 having a female screw formed therein as shown in FIG.
6a and a locking plate 1 provided at the lower end of the cylindrical body 16a
6b, and a cylindrical body 16a is formed in a hole passing through the base plate 15.
The locking plate 16b is welded and fixed to the back surface of the base plate 15 with the.

The base plate 15 has a portion to which the mounting portion 16 is attached protrudes slightly upward, and a concave portion 17 on the back side thereof.
The locking plate 16b is accommodated in the recess 17 so that the locking plate 16b does not protrude downward. The flexible flooring F1 is formed with a through hole 18 through which the cylindrical body 16a of the mounting portion 16 is inserted. The number of the through holes 18 is the same as the number of the mounting portions 16 and is arranged vertically and horizontally to conform to the arrangement. In the present embodiment, a tile carpet having a square shape (for example, 50 cm × 50 cm) is illustrated as the flexible flooring material F1, but the present invention is not limited to this and can be applied to a wide range of carpets.

Referring to FIGS. 1 to 3, an operation for applying the Braille stud 1A to the flexible flooring F1 will be described below. First, the base plate 15 is disposed on the back surface side of the flexible flooring F1 and the cylindrical bodies 16a of the mounting portions 16 are inserted into the through holes 18. At this time, since each mounting portion 16 can be inserted into each through hole 18 at the same time, the operation can be performed easily and quickly as compared with the related art. Next, the three insertion holes 10 formed in the stud body 2 are placed on the surface of the flexible flooring F1 in a state where the three insertion holes 10 are adapted to the three mounting portions 16 arranged in a horizontal row, and the insertion holes are formed. The screw 11 is screwed into the female screw in the cylindrical body 16a while inserting the screw 11 into the screw 10, and the tack main body 2 is fixed on the flexible floor material F1.

Thereafter, the cap member 3 is fitted into the concave portion 7 of the tack main body 2 and bonded with an adhesive, thereby closing the concave portion 7 and covering the screw 11. By performing the above operation on all the rows, the operation of attaching the Braille tack 1 to one flexible flooring (tile carpet) F1 is completed. Here, since the base plate 15 is provided with the mounting portion 16 for mounting a plurality of Braille tacks 1, the Braille tacks 1 are not displaced from each other. Has an area large enough to accommodate all the Braille tacks 1 within the area and is in contact with the back side of the flexible flooring F1.
5 and the Braille tack 1 are hardly displaced as a whole with respect to the flexible flooring material F, or the flexible flooring material F is broken through the through hole 18 due to the positional deviation.
As a result, the durability is improved.

When the screw 11 is tightened to the female screw of the mounting portion 16, the outer peripheral edge portion 4 of the rivet main body 2 bites into the surface of the flexible flooring material F1 as shown in FIG. 17 is a flexible flooring F1 formed on the surface side.
In this case, the tack main body 2 and the base plate 15 can be held in place of the flexible flooring F1. Further, by attaching all the Braille tacks 1 corresponding to one flexible flooring material F1 using one base plate 15, the workability in construction is greatly improved. The base plate 15
Has a function of positioning the flexible flooring material F1 in an appropriate position with respect to the floor surface F because the flexible flooring material F1 is in contact with the floor surface F on which the flexible flooring material F1 is laid. It has become.

The configuration described above can also be applied to a point-stud type Braille tack 1B having a circular shape in plan view. That is, as shown in FIG. 5, the Braille stud 1 </ b> B includes a stud body 2 and a cap member 3, and the stud body 2 has an outer peripheral edge portion 4, an inclined portion 5, a top portion 6, and a concave portion 7 (a convex portion 8). And the cap member 3 is made of a circular plate material that can be fitted into the concave portion 7. In addition, the top 6 is the slope 5
Is formed at a bent portion (boundary portion) between the upper end of the concave portion 7 and the side wall 7a of the concave portion 7, and the bent angle θ of the top portion 6 is set to an acute angle smaller than 90 °. It has become.

Here, when the top portion 6 is formed on a substantially horizontal flat surface as in the case of the wire stud type Braille stud 1A, the bending angle between the inclined portion 5 and the top portion 6 becomes an obtuse angle, and the top portion 6 and the convex portion are convex. Even if the bending angle with the side wall 7a remains at a right angle, the stud body 2
May be deformed in the direction of flattening by a bending load generated when the foot is strongly stepped on from above. On the other hand, by forming a bent portion (top portion 6) bent at an acute angle instead of a flat surface between the inclined portion 5 and the concave side surface 7a, the bending rigidity is further improved, and the deformation and the like can be prevented. In particular, such a configuration is extremely effective in securing strength, particularly in the stud body 2 formed by bending a plate material.

Although not shown, the top 6 of the stud body 2 is also formed by a bent portion that bends at an acute angle between the upper end of the inclined portion 5 and the side wall of the concave portion 7 also in the wire stud type braille 1A. Is what you can do. In the case where the point stud type braille stud 1B is mounted on the flexible flooring material F1, the base plate 15 is provided in the same manner as described above. However, as shown in FIG. A large number of the mounting portions 16 are arranged vertically and horizontally (6 × 6 in the illustrated example), and one mounting portion 16
One Braille tack 1B is to be attached.

The work for installing the Braille stud 1B is substantially the same as that described above. 7 and 8
Shows an example in which a wire stud type Braille stud 1A is attached to a hard floor surface F2 such as a stone or a tile. In this case, the insert nut 21 may be embedded in the prepared hole 20 formed on the floor surface F2 as in the prior art, and the screw 11 may be screwed into the inserted nut 21, or the screw 11 or a pin may be inserted into the prepared hole 21. It may be fixed by inserting and filling with an adhesive.

A flexible intermediate member 23 such as a synthetic resin plate made of acrylic or the like or a rubber plate is adhered to the back surface of the tack main body 2 (the lower surface of the convex portion 8) with an adhesive. Is bonded to the floor surface F2 with an adhesive 24. The intermediate member 23 is wider than the lower surface of the convex portion 8 and has an area enough to form a gap between the intermediate member 23 and the inclined portion 5 so that the groove 9 is not completely closed. The adhesive 24 between F2 and the intermediate member 23
Even if it protrudes, it hardly protrudes from the outer peripheral edge portion 4 by entering into the groove portion 9, and it is possible to simplify the finishing work after bonding and the like.

Further, the intermediate member 23 (elastic layer) is interposed between the main body 2 of the tack and the floor surface F2, whereby the main body 2 of the tack is formed.
The elastic member can be interposed by using an elastic adhesive such as a urethane-based adhesive as the adhesive 24, for example. Therefore, the stud body 2 can be prevented from being peeled off by the shock absorbing action, and the durability can be improved. Further, by setting the area of the intermediary member 23 to be larger than the lower surface of the convex portion 8, the bonding area with respect to the floor surface F2 is increased, and the bonding force can be increased.

Since the durability is improved by interposing the elastic layer between the floor surface F2 and the rivet body 2 as described above, the screw 11 may be omitted and the screw 11 may be attached only with the adhesive. What you can expect. It is also possible to use a hard plate material such as stainless steel instead of a flexible member as the mediating member 23. In this case, although the shock absorbing effect of the mediating member cannot be expected, self-deflection or the like may occur. Since there is no bonding work, the work of bonding to the lower surface of the projection 8 can be easily performed, and the workability is improved. In addition, the advantage of increasing the adhesive force by increasing the area of adhesion to the floor surface F2 is the same as described above.

In the above description, the intermediate member 23 is omitted, and the lower surface (adhered surface) of the projection 8 is directly adhered to the floor surface F2 by the adhesive 24.
In this case, it is possible to prevent the adhesive 24 protruding from the lower surface of the projection 8 from protruding from the outer peripheral edge 4 by entering the groove 9. The point stud type braille tack 1B shown in FIG.
2 can also be implemented by the same operation as described above. The design of the present invention is not limited to the above embodiment, and can be changed as appropriate.

For example, the materials of the rivet body 2 and the cap member 3 are not limited to those described above as examples, and can be changed as appropriate. In addition, the cap member 3 is not indispensable in the braille studs 1A and 1B according to the present invention, and may be configured without the cap member. Also,
The shape of the concave portion 7 is not limited to the above-described embodiment. For example, a plurality of concave portions 7 can be formed in the longitudinal direction in the case of a wire stud type braille 1A. Further, the outer peripheral edge portion 4 of the stud body 2 may be formed in a vertical wall shape hanging down from a lower end of the inclined portion 5, and the inclined portion 5 is not limited to a flat inclination, but is curved while being curved in an arc shape. May be used.

The mounting portion 16 of the base member 15 may be a caulking tool instead of the cylindrical body 16a having a female screw. In this case, the caulking tool is inserted into the insertion hole 10 from the back side of the rivet body 2. A structure in which the tip of the caulking tool is caulked (plastically deformed) from the surface side of the stud body 2 can be adopted. Further, the stud body 2 is not limited to be configured by a bent plate material, and may be a plate material or a block material obtained by cutting or the like as in the related art, and may have a structure without a concave portion and a cap member. .

[0033]

As described in detail above, according to the present invention,
Construction workability of Braille tack on flexible flooring became good,
Durability can also be improved. In addition, it is possible to easily and inexpensively manufacture Braille tacks, which is suitable for mass production and lighter.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a state where a wire stud type braille stud according to an embodiment of the present invention is attached to a flexible flooring (A- in FIG. 3);
FIG.

FIG. 2 is an exploded perspective view showing a case where the same braille tack is attached to a flexible flooring material.

FIG. 3 is a plan view showing a state in which the same Braille tack is attached to a flexible flooring material.

FIG. 4A is a plan view of a stud main body and a cap member in a line stud type braille tack, and FIG. 4B is a bottom view of the stud main body.

5A is a plan view of a stud body and a cap member in a stud type braille tack, FIG. 5B is a bottom view of the stud body,
(C) is a side sectional view showing a state where it is attached to a flexible flooring.

FIG. 6 is a plan view showing a state in which a Braille tack of a Braille type is attached to a flexible flooring material.

FIG. 7 is a side sectional view showing a state in which a Braille tack is attached to a hard floor surface.

FIG. 8 is an exploded perspective view showing a case where a wire stud type braille stud is attached to a hard floor surface.

FIG. 9 is a side sectional view showing a Braille tack according to the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1A wire stud type braille stud 1B point stud type braille stitch 2 stud body 4 outer peripheral edge 5 inclined portion 6 top 7 concave portion 8 convex portion 9 groove portion 15 base plate 16 mounting portion F1 flexible flooring

Claims (2)

[Claims] 1. A base plate (15) provided on the back side of a flexible flooring (F1) such as a carpet, and the base plate (15) vertically and horizontally mounts a large number of mounting portions (16). A plurality of Braille tacks (1A, 1B) can be mounted by mounting one Braille tack (1A, 1B) on one or a plurality of rows of the mounting portion (16). The mounting structure of Braille studs characterized by doing. 2. The braille stud (1A, 1B) includes an inclined portion (5) inclined inward and upward from an outer peripheral edge (4), and a top portion (6) connected to an upper end of the inclined portion (5). The top (6)
The mounting structure for a Braille stud according to claim 1, characterized in that it has a stud body (2) formed by bending a plate material with a recess (7) recessed below.