JP2008202151A - Rope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a rope that recognizes its existence by a reflected light even in darkness such as night, etc., without separately requiring a lighting device such as electric light bulbs, etc., and has no reduction in function for a long period of time. <P>SOLUTION: In the rope obtained by twisting a plurality of second thread materials 2 and 3 around a first thread material 1 to be a core material to give a yarn 4, twisting a plurality of the yarns into a strand 9 and twisting a plurality of the strands 9, at least one second thread material 3 is composed of a refractive material having retroreflective function. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rope capable of reflecting incident light toward the light source.

In general, various ropes are stretched around various construction sites and construction sites on roads and railways in order to block people and vehicles from entering dangerous areas.
By the way, this type of conventional rope for recognizing a dangerous zone has a drawback that it can be easily recognized in the daytime but is difficult to see at night. For this reason, it is usually necessary to attach a lighting device such as a light bulb to the rope. there were.

  In order to solve such problems, for example, in Patent Document 1 below, a rope body is formed by twisting a plurality of strands and winding an electroluminescent fiber around an outer peripheral surface. There has been proposed a self-light-emitting rope for a sign that is attached to a terminal via a heat stretchable tube and connected to an outdoor cable of an inverter equipped with a power cable via a connector.

  However, even with the self-light-emitting rope for a label having the above-described configuration, there is a drawback in that a facility for supplying power to the electroluminescent fiber is still necessary, and thus facilities and costs for that are separately required.

On the other hand, in Patent Document 2 below, a livestock material in which a livestock pigment and a water-based resin are mixed is filled and bonded in a spiral valley between strands or strands in a rope body in which a plurality of strands or strands are twisted together. An animal light wire rope is disclosed.
According to the above-mentioned animal light wire rope, since it is possible to emit light directly from itself, there is an advantage that it is not necessary to use a separate lighting fixture or the like.

  However, the above-mentioned livestock light wire rope has a problem that the light emission amount varies depending on the amount of livestock light, and even when the amount of livestock light is large, the light emission amount decreases with the passage of time of use. In addition, when used for a long time or repeatedly, the internal livestock material that hardly contributes to light emission does not decrease, but the livestock material on the rope surface side that directly affects light emission may be peeled off and lost.

Japanese Patent Laid-Open No. 10-240181 JP 2006-257603 A

  The present invention has been made in view of such circumstances, and it is possible to recognize the presence by reflected light even in the dark such as at night without requiring a separate lighting device such as a light bulb, and the above functions can be achieved over a long period of time. An object is to provide a rope that does not decrease.

In order to solve the above-mentioned problem, in the invention according to claim 1, in the rope formed by twisting a plurality of yarn materials, at least one of the yarn materials is made of a reflective material having a retroreflection function. It is characterized by.
Here, retroreflection refers to the property of reflecting incident light in the same direction as the incident direction regardless of the incident angle.

  According to a second aspect of the present invention, in the rope formed by twisting a plurality of second thread materials around the first thread material as a core material, at least one second thread material is provided. It is made of a reflective material having a retroreflection function.

  Furthermore, the invention according to claim 3 is a strand obtained by twisting a plurality of yarns formed by twisting a plurality of second yarn materials around the first yarn material as a core material, and forming the strands. In the rope formed by twisting a plurality of yarns, at least one second yarn material is made of a reflective material having a retroreflection function.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the reflective material has a plurality of transparent microglass spheres on the both sides of the filamentous film serving as a substrate. The lower half of the transparent fine glass sphere that is exposed and fixed is formed with a metal or metal compound deposition layer serving as a reflective layer.

  Furthermore, the invention according to claim 5 is that a thin film resin layer having at least one of an antifouling function and a water repellent function is formed on the surface of the rope according to any one of claims 1 to 4. It is a feature.

  In the invention according to any one of claims 1 to 5, the rope material or the second yarn material made of a reflective material having a retroreflective function in the rope is another yarn material or the first and second yarns. Because it is twisted together with the material, when the light of a car headlight or a flashlight carried by a person is applied to the rope in the dark, the light hits the reflective material exposed on the rope surface, and the incident direction It will be reflected in the same direction.

Thereby, the driver | operator of a car, a passenger, etc. can recognize presence of a rope directly by the said reflected light.
As a result, it is possible to recognize the presence of the rope by reflecting light in the dark, such as at night, without requiring a lighting device such as a light bulb for illuminating the rope separately, and without emitting light itself, The recognition function does not deteriorate for a long time.

  Accordingly, the rope is suitable as a rope that is stretched around various construction sites and construction sites related to roads, railways, and the like, in order to block people and vehicles from entering the hazardous area. At this time, the other yarn material not used as the reflecting material in claim 1, the second yarn material in claim 2 or the yarn in claim 3 are sequentially colored in black and yellow in the longitudinal direction. For example, it can be set as a traop having a light reflection function.

  Moreover, this rope can be used for various other uses, for example, it can be used for various decorations such as braids, or it can be used as a net by knitting the thin rope. Furthermore, if it is used as a rope for workers to work at night, or as a rope for pets such as dogs, it reflects light from the headlights of the car at night to make the presence of it to the driver. Therefore, it is possible to improve the safety of the worker and the like.

  Various forms can be adopted for the structure in which the yarn material is twisted to form the rope. That is, as in the invention described in claim 1, a plurality of yarn materials may be twisted together as they are. Further, as in the invention described in claim 2, a structure in which a first thread material serving as a core material for bearing strength is arranged at the center and a plurality of second thread materials are twisted around the first thread material. If it employ | adopts, the tensile strength as the whole rope can be raised with the said 1st thread | yarn material.

  Further, as in the invention described in claim 3, the rope obtained by the invention described in claim 2 is used as a yarn, and a plurality of these strands are twisted to form a strand, and the plurality of strands are further twisted. If the rope is configured, an extremely high tensile strength can be obtained even with the first and second thread materials having a small diameter.

In addition, if a large number of first and second yarn materials are twisted together in this way, the second yarn material using the reflective material is densely arranged on the rope surface, which is higher. A light reflection effect can be obtained.
Here, as the reflective material, various materials can be used as long as the retroreflection can be realized, but it is preferable to use a material whose surface does not deteriorate with time.

  In this regard, in the invention described in claim 4, as the reflecting material, a plurality of transparent micro glass spheres in which a vapor deposition layer serving as a reflective layer is formed on the lower hemisphere on both sides of a thread-like film serving as a base material, Since the hemisphere is exposed and fixed, the incident light is transmitted through the transparent micro glass sphere and reflected by the vapor deposition layer, and again reflected in the same direction as the incident direction. A stable retroreflection function can be maintained.

  In addition, the reflective material is formed by fixing a plurality of transparent micro glass spheres in which a vapor deposition layer serving as a reflective layer is formed on the lower hemisphere on both surfaces of a thread-like film serving as a base, with the upper hemisphere exposed. In addition, when twisting with another yarn material, the transparent micro glass sphere can always be positioned on the surface regardless of how it is twisted, so that high reflection performance can be ensured.

  In particular, as in the invention described in claim 5, if a thin film resin layer having at least one of an antifouling function and a water repellent function is previously formed on the surface of the rope, it can be used during night rainy weather. Since the high visibility by the retroreflective function is maintained, a more practical rope can be provided. In addition, as resin which forms such a thin film resin layer, a fluororesin, a silicon resin, etc. are suitable, for example.

1 to 4 show an embodiment of a rope according to the present invention. In the figure, reference numeral 1 denotes a filament yarn (first yarn material) serving as a core, and reference numerals 2 and 3 denote this filament yarn. A plurality (four in the figure) of spun yarn (second yarn material) twisted around the outer periphery of 1.
Then, the yarn 4 is formed by twisting the span yarn 2 around the outer periphery of the filament yarn 1.

Here, as the filament yarn 1 constituting each yarn 4, synthetic resin fibers such as nylon, polyethylene, and polyester can be used, and as the spun yarn 2, synthetic resin fibers such as nylon and polyester, cotton yarn, or the like. Natural fibers can be used.
In this rope, a yarn made of a reflective material having a retroreflective function is used as one of the four span yarns 2 and 3.

  For example, when the spun yarn 3 made of the reflecting material is twisted around the outer periphery of the filament yarn 1 having an outer diameter of 3.7φ, a yarn having a width of 275 μm and a thickness of 170 μm is used. ing. Incidentally, when the reflector itself is insufficient in strength, it is more preferable to cover the reflector with a synthetic resin fiber such as polyester to form the spun yarn 3.

  As shown in FIG. 3, the spun yarn 3 has a large number of transparent micro glass spheres 7 exposing the upper hemisphere in a urethane resin layer 6 formed on both surfaces of a thread-like PET film material 5 as a base material. In this state, a single layer is arranged and fixed. Here, on the lower hemisphere of the transparent fine glass sphere 7, a vapor deposition layer 8 is formed by vapor-depositing a metal such as aluminum or a metal compound. The vapor deposition layer 8 functions as a light reflection layer. In addition, as the said transparent micro glass sphere 7, the refractive index is the range of 1.3-2.3, for example, and the thing of the magnitude | size of 30 micrometers-100 micrometers is suitable.

  Thereby, when light is applied toward the spun yarn 3, the light is transmitted through the transparent minute glass sphere 7 and reflected by the vapor deposition layer 8, and is reflected again from the inside of the transparent minute glass sphere 7 in the same direction as the incident direction. The And this reflection becomes the same direction as the said incident direction similarly, when light injects from any direction. In this way, the reflection of light at the spun yarn 3 is retroreflection.

  The strands 9 are formed by twisting the three yarns 4 having the above-described configuration, and the rope is formed by twisting three strands 9 together. As a result, the spun yarn 3 made of a reflective material having a retroreflective function that is twisted into one of the yarns 4 is exposed on the surface of the rope over the entire length and the entire circumference. Further, a thin film resin layer having antifouling function and water repellent function such as fluororesin and silicon resin is formed on the surface of the rope.

  Therefore, according to the rope having the above configuration, when the light of the headlight of a car or a flashlight carried by a person is applied to the rope in the dark, the incident direction is caused by the span yarn 3 that exposes the light to the rope surface. Can be reflected in the same direction. The reflected light can make the driver of the car and the passengers directly recognize the presence of the rope.

  At this time, the reflecting material constituting the spun yarn 3 is fixed on the both sides of the PET film material 5 with a large number of transparent minute glass spheres 7 with their upper hemispheres exposed. When twisting the spun yarn 3 around the outer periphery, the transparent micro glass sphere 7 can always be positioned on the surface of the spun yarn 3 regardless of how it is twisted, thereby ensuring high reflection performance.

  As a result, the presence of the rope can be recognized by reflection of light even in the dark such as at night without requiring a lighting device such as a light bulb for separately illuminating the rope and without causing light to emit light. The recognition function does not deteriorate over a period of time.

  In the above embodiment, a large number of transparent micro glass spheres 7 in which the vapor deposition layer 8 is formed in the lower hemisphere on both surfaces of the thread-like PET film material 5 serving as the base material as the reflecting material constituting the spun yarn 3. However, the present invention is not limited to this, and various materials can be used as long as retroreflective reflection is feasible. .

  Further, in the structure in which the yarn material is twisted to constitute the rope, the four span yarns 3 are twisted around the outer periphery of the single filament yarn 1 to form the yarn 4, and the three yarns 4 are twisted. It is not limited to the case where the strands 9 are formed together and three strands 9 are twisted together.

That is, a structure in which a plurality of yarn materials are twisted as they are, or a structure in which the yarn 4 or the strand 9 is used as a rope as it is can be adopted. Further, the thickness of the filament yarn 1 and the spun yarn 3 can be appropriately selected according to the application.
Further, the number of the spun yarns 3 made of a reflective material having a retroreflective function is not limited to the configuration in which one yarn is twisted into each of the yarns 4 described above, and a plurality of the spun yarns 3 are arranged in each yarn 4. May be twisted.

It is a perspective view which shows the state which untwisted the edge part in one Embodiment of the rope which concerns on this invention. It is sectional drawing of the yarn which comprises the rope of FIG. It is sectional drawing which shows the reflective function of the light in the span yarn 3 of FIG.

Explanation of symbols

1 Filament yarn (first yarn material)
2 Spun yarn (second yarn material)
3 Spun yarn made of reflective material 4 Yarn 5 PET film material (base material)
7 Transparent glass sphere 8 Deposition layer 9 Strand

Claims (5)

  A rope formed by twisting a plurality of yarn materials, wherein at least one of the yarn materials is made of a reflective material having a retroreflection function.   In the rope formed by twisting a plurality of second thread materials around the first thread material as the core material, at least one of the second thread materials is made of a reflective material having a retroreflection function. A rope characterized by that.   In a rope formed by twisting a plurality of yarns obtained by twisting a plurality of second yarn materials around the first yarn material as a core material, and twisting the plurality of strands, and at least a plurality of the strands are twisted, The rope characterized by one said 2nd thread material consisting of the reflecting material which has a retroreflection function.   In the reflecting material, a plurality of transparent fine glass spheres are fixed to both surfaces of a thread-like film serving as a base material with the upper hemisphere exposed, and the lower hemisphere of the transparent fine glass sphere has a metal or metal serving as a reflective layer. The rope according to any one of claims 1 to 3, wherein a vapor deposition layer of the compound is formed.   A rope comprising a thin film resin layer having at least one of an antifouling function and a water repellent function formed on a surface of the rope according to any one of claims 1 to 4.

Images