JP2015048565A - String-like body having light retroreflective ability in every direction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a string-like body having light retroreflective ability in every direction which can reliably cause the retroreflection of an illumination light beam from light of a vehicle or a lifesaving illumination device over a wide range for ensuring traffic safety and for early detecting and rescuing a victim in the case of a distress, thereby enabling the prevention of an accident and the early detection of the victim.SOLUTION: A base material having light retroreflective ability includes a light retroreflective layer formed by densely adhering extremely fine glass beads with a flexible adhesive to one side surface of a base fabric knitted or woven in a high density with a flexible synthetic fiber having a thin fineness. The base material is cut so as to have such a width that the cross section thereof can be formed in a desired cylindrical shape by sewing and is then sewn into a string-like body in such a way that the light retroreflective layer forms an outer surface.

Description

  The present invention relates to a flexible string-like body having a light retroreflective function in all directions, and more specifically, a retroreflective layer is formed on one side of a flexible woven fabric, and this retroreflective layer surface is an outer surface. And it exists in the omnidirectional light retroreflective string-like body formed by stitching into a cylindrical shape of a required diameter.

Currently, the automobile society is in an extremely excessive state, and abnormal traffic jams occur daily during leisure hours as well as during normal commuting hours, so in order to avoid this traffic jam, it also runs in the back streets and narrow alleys, In these back streets and alleys, lighting devices are inadequate compared to the main streets, the road width is narrow, and there are many crossing alleys. In addition, with the aging of automobile drivers, many accidents have occurred due to a decline in attention and risk recognition.
In addition, with today's aging society, without being aware of a decline in physical fitness and judgment, we are not only going out to sightseeing and shopping theaters, but also climbing, mountain traversing, rivers, lakes, oceans, etc. Participates in kayaking.

However, with the aging of the participants, the physical strength declined and judgment itself declined significantly, and the ability to cope with sudden changes in weather conditions was poor, and accidents occurred again and again. .
And if an accident similar to a distress occurs, if the victim's consciousness or physical movement is possible, the presence of the distress can be confirmed relatively easily using a mobile phone or using a held LED light emitter, etc. Rescue is also possible, but especially in mountains and wilderness, trees and vegetation are densely populated and dark even in the daytime, use lighting devices to check as soon as possible, especially when searching at sunset or night There is no special confirmation means other than finding by irradiation with the apparatus. In addition, the problem is not only in the mountains, but also in rivers and oceans, and so the distress is extremely wide.

In order to deal with such problems, the inventors have made a retroreflected light return without diffusing and extinguishing the received light toward the illuminating device even if the illuminance from the illuminating device during the search is attenuated over a wide range over a long distance. In order to detect the victims at an early stage, a retro-reflective yarn that has been subjected to optical retro-reflective processing on the synthetic resin film base material and cut to an appropriate width is appropriately woven with a strand made of fiber material. Or a retroreflective film material having one side of a synthetic resin film subjected to optical retroreflection processing, the width and shape of which is equal to an arc having a curvature of 22.5 to 45 degrees from the center of the circle. Although the practical test has been repeated with a marker band attached to the outer surface of an elastic arc-shaped base material that has been deformed under pressure, such a light retroreflective material has a light retroreflective layer on the side of a flat synthetic resin film material. Formed into a narrow shape after forming In addition, with a rope that is appropriately knitted with strands made of fiber material, the light retroreflective material is twisted or folded and hidden between the strands, so that the optical retroreflective performance is not exhibited effectively. The sign band that is bonded to the outer surface of the elastic arc-shaped substrate is also flat so that the light retroreflective layer is flat, so that it is sufficiently visible as long as the vehicle light and the optical axis of the search lighting device are not irradiated at an orthogonal angle. Sex is not demonstrated.
Japanese Patent Publication No. 8-11874 Utility Model Registration No. 3140416

  Therefore, as a result of further research, the inventors closely bonded ultrafine glass beads to one side of a base fabric made by knitting or weaving soft synthetic fibers with high fineness at high density with a flexible adhesive. The optical retroreflective layer is formed into a optical retroreflective substrate, the optical retroreflective substrate is cut to a desired width, and the optically recursive layer is stitched in a circle so that the outer surface is the outer surface. By forming a string-like body, light recursion is strongly created in a wide range of uses, and it has been conceived that not only for risk prevention but also for searching in a distress can be easily and reliably discovered. .

  The present invention can be used in a wide range to ensure safety during traffic and enable early detection and relief of a victim in the event of a distress, and the illumination light from a vehicle light or a life-saving lighting device can illuminate over a long distance. An object of the present invention is to provide an omnidirectional optical recursive string-like body that can effectively prevent optical relapse and can detect a victim early, even if the optical axis is lowered or the optical axis moves.

  The technical means adopted by the present invention to solve the above-mentioned problem is that ultrafine glass beads are formed on one side of a base fabric that is knitted or woven at a high density using a synthetic fiber that is fine and flexible. It becomes a light retroreflective base material in which a light retroreflective layer is formed by closely bonding using a flexible adhesive, and the cross section of the light retroreflective base material can be sewn into a desired cylindrical shape. After cutting, the optical recursive layer is stitched to the string-like body so as to be the outer surface.

  Since the present invention is configured as described above, the following specific effects are exhibited. In other words, since the base fabric is formed by knitting or weaving the light retroreflective base material with high-definition and soft synthetic fibers at a high density, it is excellent in flexibility while having a high-density structure, and is extremely Great elasticity is also created. And on one side of this base fabric, a light retroreflective substrate on which a very fine glass bead is closely bonded with a flexible adhesive to form a light recursive layer is cut to a desired width, and the light recursive layer is formed on the outer surface. Since the cross section is sewn so as to have an appropriate cylindrical shape, it can be used in a wide range of applications, such as hanging straps such as accessories for going out, haberdashery items, hand-held items, etc. , Wrapping around a travel bag, suitcase, baby carriage, child bike, etc., or stitching to the side edge of bags and bags to immediately recognize the danger caused by vehicle lighting to prevent accidents and climbing It is possible to find a victim in a short time without disrupting the design by stitching the outer edge of a mountain, mountain, kayak or canoe, or the edge of protective clothing.

  The single yarn fineness is 1 to 3 μm, and the polycamide synthetic fiber is knitted at a high density using a synthetic fiber of 80% proportion of polyurethane synthetic fiber and 20% proportion of polyurethane synthetic fiber, and the particle size is 20 to 40 μm on one side. The optically recursive base material in which the optical retroreflective layer is formed by closely adhering the ultrafine glass beads of polyurethane with a polyurethane adhesive is sewn into a desired cylindrical shape in cross section. The string-like body is sewn so that the optical recurrence layer becomes the outer surface.

  The embodiment of the present invention will be described in detail below with reference to the drawings. The light retroreflective substrate 1 forming the present invention of FIG. 1 is desired to be excellent in flexibility, tough and lightweight, In practical use, it is desirable to maintain elasticity as much as possible. For this purpose, the synthetic fiber material 1A used has a single yarn fineness of 1 to 3 denier, a polyamide synthetic fiber of approximately 70 to 80% and a polyurethane synthetic fiber of approximately 20 to 30%. The synthetic fiber material 1A is suitable. The optical recursive base material 1 formed using the synthetic fiber material 1A has an optical recursive material 2A made of glass beads having an extremely fine particle, preferably 20 to 40 μm in particle diameter on one side surface. The adhesive 2B is closely and smoothly bonded, and is knitted or woven at a sufficiently high density so that the adhesive does not leak out. Further, the optically retroreflective substrate 1 has sufficient stretchability. Is preferably knitted, and more specifically, a Russell knitted net or the like is suitable. Of course, when large stretchability is not desired, a woven means is selected.

The optical retroreflective agent 2A of the optical retroreflective layer 2 formed on one side surface of the optical retroreflective substrate 1 can use ultrafine glass beads having a particle size of about 20 to 40 μm. Is to form the adhesive as densely as possible.
The light retroreflective substrate 1 formed in this way is used for safety in road walking in practical use, and exerts a strong light retroreflective property on the vehicle headlight to prevent accidents, or climbing, mountain walking, rivers, sea, etc. In the event of a distress, etc., in order to ensure that the searchlight beam is reliably recurred and to quickly find and save the victim, the headlight and the optical beam of the searchlight beam can effectively exhibit light reflexivity. Therefore, the optical recursive layer 2 is formed on the outer surface and in a cylindrical shape.

Therefore, as shown in FIG. 2, the light retroreflective substrate 1 is cut into a width that can be formed into a desired cylindrical shape, and the both ends of the sewing machine are sewn together 3A so that the light retroreflective layer 2 is arranged on the outer surface. Thereby, this invention string-like body 3 is formed.
A specific example of use of the string-like body 3 is shown in FIGS. 3 to 5. In FIG. 3, the personal belongings and accessories are stored in the storage portion 4 when going out, and the strap is used instead. Further, in FIG. 4, the string-like body 3 of the present invention is sewn or bonded to the peripheral portion of the bag 5 to be brought when going out, so that the vehicle headlight during walking can be quickly recognized by light recursion. In order to prevent accidents, and as shown in FIG. 5, the neck, cuffs, or belly of outerwear, special uniforms, etc. can be used in the event of mountain climbing, mountain walking, rivers, lakes, or oceans caused by boats, canoes, kayaks, etc. By sewing or adhering the string-like body 3 around and around, the light recursion works effectively with respect to the illumination light beam, and greatly contributes to early detection and lifesaving.

  By forming a string-like body having a circular diameter and length according to the purpose of use, it can be immediately put into practical use.

  It is explanatory drawing of a light recurrence base material.   It is explanatory drawing of this invention omnidirectional light recurrence string-like body.   It is a use illustration figure to a strap.   It is a use illustration figure to the peripheral part of a bag.   It is an example of use to a dedicated uniform.

DESCRIPTION OF SYMBOLS 1 Optical recursive base material 1A Synthetic fiber material 2 Optical recursive layer 2A Optical recursive material 2B Polyurethane adhesive 3 This invention string-like body 3A Sewing machine sewing 4 Storage part of personal items and accessories 5 Bag 6 Outerwear and exclusive uniform

Claims (2)

  A light recursive layer is formed on one side of a base fabric made by knitting or weaving a fine and flexible synthetic fiber material at a high density to form a fine-grained glass bead with a flexible adhesive. The light retroreflective substrate is cut into a width that allows the cross section to be sewn into a desired cylindrical shape, and then the light retroreflective layer is sewn into a string-like body so as to be the outer surface. Omnidirectional light-recursive string.   The omnidirectional light retroreflective string according to claim 1, wherein the synthetic fiber material having fineness and flexibility is mixed in a proportion of 70 to 80% of polyamide synthetic fiber and 20 to 30% of polyurethane synthetic fiber. .

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