JP2007262657A - Guide for visually impaired person and method of constructing guide for visually impaired person - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide for visually impaired persons enabling easy constructional operations and a reduction in the possibility of coming off after adhesion and a method of constructing the guide. <P>SOLUTION: A guide sheet 3 can be stuck on a road surface without strictly controlling the drying time by using a reaction curing adhesive agent 4. Since a sheet-like part 1 and projections 2 are integrally formed of a synthetic resin of the same group, the projections 2 are firmly fixed to the sheet-like part 1, and the possibility that the projections are removed from the sheet-like part is reduced. Since a soft synthetic resin is used, the guide sheet 3 can follow up the irregularities of the road surface. Since a synthetic resin of the same group is used for the adhesive agent 4, the adhesion by the adhesive agent 4 can be surely performed, and the possibility that the projections are removed from the sheet-like part after the adhesion can be reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a synthetic resin derivative for a visually impaired person and a method for constructing a visually impaired person derivative that are laid on a road surface and used as a warning sign or a guidance sign.

  To form a visually-impaired derivative made of synthetic resin, for example, after applying a quick-drying adhesive to the walking surface, a pair of rod-shaped supports and one end connected to one of the pair of rod-shaped supports And a projection unit comprising one or more projection forming bodies provided in a bridging manner between the pair of rod-shaped supports, with the other end serving as a connecting portion to the other of the pair of rod-shaped supports. The back surface of the protrusion-forming body is pressed against the walking surface to which the adhesive has been applied, and this back surface is adhered to the walking surface.Then, the protrusion-forming body and the rod-shaped support body are separated at the connecting portion and left on the walking surface. A method for laying projections for guiding the visually impaired by the projection unit is disclosed (for example, Patent Document 1), wherein projections for guiding the visually impaired are formed by the projected projections.

  Further, the resin sheet has a plurality of protrusions projecting from the upper surface and includes an acrylic resin, and the resin sheet is obtained by curing a curable mixture mainly composed of an acrylic monomer. Therefore, there is disclosed a Braille tile in which the curable mixture mainly composed of an acrylic monomer is an acrylic syrup containing at least an acrylic monomer, a polyfunctional monomer, and a polymer component (for example, Patent Document 2).

JP 2004-176529 A JP 2005-105811 A

  However, in conventional derivatives for the visually impaired as described in Patent Document 1, since the protrusion-forming body and the quick-drying adhesive are formed separately, the drying time of the quick-drying adhesive at the time of laying There is a risk that the projection forming body that is insufficient will sink into the adhesive and the height of the projection portion will be insufficient, and if it is too dry, the adhesive force between the projection forming body and the adhesive will be insufficient, Since there is a risk of detachment, strict time management is required at the time of laying, and the construction work becomes complicated.

  Moreover, in the conventional visually impaired derivative as described in Patent Document 2, the hardness of the resin sheet becomes higher than necessary due to the use of the acrylic resin, and when the sheet is bonded to the road surface, The follow-up to the unevenness was insufficient, and the resin sheet was likely to come off after bonding.

  The present invention has been made in view of the problems as described above, and is intended to provide a visually impaired derivative and a method for constructing a visually impaired derivative that can be easily constructed and reduce the risk of detachment after bonding. It is.

  In order to achieve the above object, the present invention is configured as follows. In other words, the visually-impaired derivative according to the present invention has a soft synthetic resin induction sheet in which protrusions are integrally formed on the upper surface of a sheet-like portion, which is adhered to a road surface with an adhesive, and the adhesive is reactively cured. The synthetic resin forming the induction sheet and the base resin of the adhesive are made of the same type of synthetic resin.

  According to the visually impaired derivative according to the present invention, by using a reaction curing type adhesive, the guide sheet can be adhered to the road surface without strictly controlling the drying time. Since the protrusions are integrally formed of synthetic resin, the risk of the protrusions being firmly fixed to the sheet-like portion and coming off is reduced, and by using a soft synthetic resin, the guide sheet is made of the road surface. It is possible to follow the unevenness, and furthermore, by using the same synthetic resin as the adhesive, it is possible to reduce the possibility that the adhesion by the adhesive is reliably performed and comes off after the adhesion.

  In addition, the method for constructing the visually impaired derivative according to the present invention includes a guide sheet in which protrusions are integrally formed using a soft synthetic resin on the upper surface of the sheet-like portion, and a soft synthetic resin forming the guide sheet. It is characterized in that it is affixed to a road surface using a reaction curing type adhesive having a similar synthetic resin as a base resin.

  According to the method for constructing a visually impaired derivative according to the present invention, the induction sheet can be attached using a reaction curing type adhesive, so that it can be attached to the road surface without strictly controlling the drying time. Since the sheet-like part and the projection part are integrally formed of the same type of synthetic resin, the possibility that the projection part is firmly fixed to the sheet-like part and detached is reduced, and a soft synthetic resin is used. The guide sheet can follow the unevenness of the road surface, and the adhesive is also made of a similar synthetic resin, so that the adhesive is surely bonded and the possibility of coming off after bonding is small. And can.

  According to the visually impaired derivative according to the present invention, by using a reaction curing type adhesive, the guide sheet can be adhered to the road surface without strictly controlling the drying time. Since the protrusions are integrally formed of synthetic resin, the risk of the protrusions being firmly fixed to the sheet-like portion and coming off is reduced, and by using a soft synthetic resin, the guide sheet is made of the road surface. It is possible to follow the unevenness, and furthermore, by using the same synthetic resin as the adhesive, it is possible to reduce the possibility that the adhesion by the adhesive is reliably performed and comes off after the adhesion.

  Moreover, according to the construction method of the visually impaired derivative according to the present invention, the induction sheet can be pasted using a reaction curing type adhesive, so that it can be stuck on the road surface without strictly controlling the drying time. However, since the sheet-like part and the projection part are integrally formed of the same type of synthetic resin, the possibility that the projection part is firmly fixed to the sheet-like part and comes off is reduced, and a soft synthetic resin is used. Therefore, the guide sheet can follow the unevenness of the road surface, and furthermore, the adhesive is also made of a similar synthetic resin, so that the adhesion by the adhesive is surely performed and the possibility of coming off after the adhesion is small. I can do it.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

  1A and 1B show an embodiment of a visually impaired derivative according to the present invention, where FIG. 1A is a perspective view, FIG. 1B is a longitudinal sectional view, and FIG. 1C is a longitudinal section showing details near an end. FIG. First, in (a), the induction sheet 3 is provided with a sheet-like body 1 that is integrally formed using a soft acrylic resin that is a soft synthetic resin, and a protrusion 2 that is provided integrally with the sheet-like portion 1. The guide sheet 3 is attached to the road surface G with an adhesive. Next, in (b) and (c), the sheet-like body 1 and the projecting portion 2 are integrally formed using the same soft synthetic resin, and the lower surface of the sheet-like body 1 is road surface by the reactive adhesive 4. Affixed to G.

  Here, the induction sheet 3 is formed by injection molding of a soft acrylic resin, and the adhesive 4 is an acrylic reactive adhesive, and the back surface of the sheet-like body 1 is included in the adhesive 4. And the affinity between the base resin of the adhesive 4 and the soft synthetic resin forming the sheet-like body 1 is increased after the adhesive 4 is cured. High adhesion can be obtained.

  If the soft synthetic resin that forms the guide sheet 3, that is, the sheet-like body 1 and the protruding portion 2, is too hard, the follow-up to the road surface is not smooth. It is preferable to use a soft synthetic resin having a flexural modulus of about 10 to 70 MPa. Synthetic resins are not limited to soft acrylic resins, but are low-density, linear polyethylene, polyvinyl acetate, polyvinylidene chloride, polyurethane, unsaturated polyester resins, epoxy resins, neoprene, butadiene acrylonitrile rubber, chloroprene heavy Polymer, butyl rubber, ethylene propylene terpolymer, polyisobutylene resin, ethylene vinyl acetate copolymer, silicon resin, soft vinyl chloride resin, styrene-butadiene, polyolefin, polyester, polyvinyl chloride, polyurethane, polyamide, etc. Or the like can be used.

  Also, if these soft synthetic resins can be thermoformed such as injection molding, it becomes easy to form the protrusions 2 that are spaced in the form of dots used for warning signs that are difficult to form. , Soft acrylic resin, low density, linear polyethylene, polyvinyl acetate, polyvinylidene chloride, polyurethane, ethylene vinyl acetate copolymer, soft vinyl chloride resin, styrene-butadiene, polyolefin, polyester, polyvinyl chloride It is preferable to use thermoplastic synthetic resins such as elastomers such as polyurethane, polyurethane and polyamide.

  The reactive adhesive 4 can be a resin whose base resin is the same resin as the synthetic resin forming the induction sheet 3. For example, if the sheet-like portion 1 and the protrusion 2 are acrylic resins, an acrylic resin can be used. An adhesive or the like can be used.

  FIG. 2 is a side view showing an embodiment of the construction method of the visually impaired derivative according to the present invention. The guide sheet 3 that forms the visually-impaired derivative 10 is made of a soft synthetic resin, so that it has flexibility. When the adhesive sheet 4 is applied to the road surface G using the back surface, , It can be gradually adhered from one end to the other end, and it can be adhered while venting air between the back surface of the induction sheet 3 and the adhesive 4, thereby adhering without generating bubbles or the like. The adhesive area by the agent 4 can be secured and a strong adhesive force can be obtained. Further, since the adhesive 4 is reactive, it is not necessary to dry the adhesive 4 by exposing it to the air, and it can be cured by a trace amount of moisture contained in the road surface or air. Since there is no need to stick the sheet-like part 1 after drying, strict time management for waiting for the adhesive 4 to harden at the time of construction is not required, such as being able to bond immediately after application, and the construction is simple. I can do it. The application of the adhesive 4 is not limited to the one applied to the road surface G, and it is applied to the back surface of the sheet-like portion 1 or applied to both the road surface G and the back surface of the sheet-like portion 1. May be.

It is explanatory drawing which shows one Embodiment of the derivative for visually impaired persons concerning this invention. It is explanatory drawing which shows one Embodiment of the construction method of the derivative for visually impaired persons concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet-like part 2 Protrusion part 3 Guide sheet 4 (Reactive type) Adhesive 10 Derivative for visually impaired

Claims (2)

An induction sheet made of a soft synthetic resin having protrusions integrally formed on the upper surface of the sheet-like portion is attached to the road surface with an adhesive, and the adhesive is of a reaction curing type and forms the induction sheet. A derivative for visually handicapped persons, characterized in that a synthetic resin and a base resin of the adhesive are made of a similar synthetic resin. A reaction-curing type adhesive sheet in which a protrusion is integrally formed on a top surface of a sheet-like portion using a soft synthetic resin, and the base resin is a synthetic resin similar to the soft synthetic resin forming the induction sheet. A method for constructing a visually impaired derivative characterized in that it is adhered to a road surface using an agent.

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