JPH07228253A - Caution signs at level crossings - Google Patents

Abstract

(57) [Summary] [Purpose] This is a caution sign that is erected above the entrances and exits of railroad crossings. Its structure is simple and lightweight, there is little vibration, there is no danger when dropped, and electric accidents such as electric shock do not occur. Provide caution signs that are safe and easy to handle. [Structure] On a net body 4 made of synthetic fiber yarn, a plurality of marking pieces 5 provided with a caution display 50 on the surface of a cloth or sheet having high brightness reflection performance are fixed, and the net body 4 has upper and lower edges. The insertion portions 4a, 4a of the support strip are provided along the portion, and the insertion portions 4a, 4a are fixed to the support strip by the fixtures 6, 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caution sign at a railroad crossing or the like.

[0002]

2. Description of the Related Art A railroad crossing accident causes serious damage to people and the like and delays transportation time. In this crossing accident, there is a case where a car stops on the track and collides with a train, and a case where a truck with a high load contacts the trolley wire installed above the track and the trolley wire is disconnected. . As a means of preventing the trolley wire from being cut at such a railroad crossing, a pole has been generally installed at the entrance and exit of the railroad crossing, and two parallel ropes are spanned between these poles as span lines.
A caution sign is attached to the middle portion of these ropes in the longitudinal direction to call attention. Conventionally, a rectangular plate made of a metal such as an aluminum alloy has been used as the caution sign, and the surface of the rectangular plate has been subjected to high-brightness reflection treatment and printed with characters and symbols.

[0003]

However, in this structure,
Since the sign is a rigid plate with a relatively large thickness, such as 1000 mm x 400 mm x 2 mm, the vibration due to the wind is large, which gives a large load to the connection part between the rope and the connection part between the rope and the electric pole. There is a risk of accidentally damaging or cutting the connecting parts. Also, when the caution sign drops due to the connection part being cut or the cargo of the car coming into contact with the caution sign, etc., it is hard and heavy, and there is a risk of serious damage to people, vehicles, buildings, etc. Since the sign is made of a conductive material, if it comes into contact with the trolley wire or the electric wire, there is a possibility of causing an accident such as electric shock.

The present invention was devised in order to solve the above-mentioned conventional problems. The purpose of the present invention is to have a simple and lightweight structure, little vibration, and no danger when dropped. It is to provide a caution sign that is highly safe and easy to handle and that does not cause electric accidents such as electric shock. INDUSTRIAL APPLICABILITY The present invention is suitable for use as a crossing caution sign, and can be used for general aerial caution signs such as a caution sign at the entrance and exit of a construction site and a caution sign for general roads.

[0005]

To achieve the above object, the present invention provides a surface of a net body made of synthetic fiber yarn or / and
And, on the back surface, fix a plurality of marker pieces provided with a caution display portion on the surface of a cloth or sheet having high-luminance reflection performance, and the net body is provided with an insertion portion of the support strip along the upper and lower edges.
The insertion portion is fixed to the support strip by a fixing tool. The net body is preferably a plain weave using high-strength, low-elongation fibers as the net yarn, and preferably, the net yarn has a surface covered with a synthetic resin coating film. When the marking piece is provided on one side of the net body, a backup piece made of cloth or sheet is fixed on the opposite net side. For fixing, joining and sewing are preferably used together. The insertion portion of the support strip is preferably formed by folding back the edge portion of the net element body via a sheet or tube and fixing the folded back portion to the net element body main body side. The support strip is a flexible long material generally represented by a rope or a cable, but a rigid material such as a beam or a rod can also be used.

[0006]

The caution sign according to the present invention is flexible because the base body is a net made of synthetic fiber, and the sign piece is also made of cloth or sheet, and it can be rolled up and rounded, so that handling such as transportation is easy. is there. Even in the erected state, the caution sign consists of a net and cloth or sheet, so there is little danger of damaging other things if it should fall, and because it is a fiber, it has electrical insulation properties, so that it can No electric accident will occur even if it comes into contact with electric wires. Further, since the wind passes through the mesh, the vibration is small even if the area is large, and the load on the supporting member and the connecting portion can be reduced. When two pairs of each marking piece are fixed and fixed on the front and back of the net body, there is an advantage that the attention content can be visually confirmed from both the back side and the front side.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show an example in which the caution sign according to the present invention is applied to a crossing caution sign. In FIG. 1, 1,
Reference numeral 1 is a column, 2 and 2 are two parallel ropes as support strips, and 3 is a warning sign that is a feature of the present invention. In this embodiment, the ropes 2 and 2 are composed of main ropes 2b and 2b connected to the stanchions 1 and 1 and support ropes 2a and 2a assembled with the caution mark 3 and the support ropes 2a and 2a are Main ropes 2b, 2 by connecting tools 2c, 2c
It is connected to b. Of course, the present invention is the main rope 2
It also applies to the case of a rope which is not divided into b, 2b and supporting ropes 2a, 2a. Therefore, in the following description, the rope will be referred to as a rope unless it needs to be distinguished. As shown in FIGS. 2 and 5, the caution mark 3 is
A net body 4 having a desired shape such as a rectangular shape, a plurality of marking pieces 5 fixed at required positions on the net body 4 at intervals, and a fixture 6 for fixing the net body 4 to the ropes 2, 2.
6 and.

The net body 4 is made of net yarns 40 and 41 made of synthetic fiber having good tensile strength and weather resistance. Examples of synthetic fibers may include polyethylene fibers and polyester fibers. However, preferably, high tenacity and low elongation fiber,
For example, aromatic polyester fibers represented by polyarylate, aromatic polyamide fibers represented by polyaramid, ultrahigh molecular weight polyethylene fibers and the like are used. Net thread 40, 41 is 40 kgf per one
In order to select a thickness having the above-mentioned tensile strength and to ensure good ventilation and to secure a sufficient fixing area of the marking piece 5, the mesh size is preferably about 5 to 20 mm □. Although the net structure is not limited in principle, it is preferable to use a plain weave in which warp yarns and weft yarns are interlaced one by one in order to prevent structural elongation from occurring. Due to this net structure and the above-mentioned fiber material, the net body 4 can be provided with a characteristic that the elongation at break in the axial direction is 6% or less, and the swelling and the like due to the wind can be reduced.

Further, the mesh yarns 40 and 41 are preferably waterproof (moisture-resistant), because when they are hydrated by rain or snow, the electrical insulation properties are reduced and the weight is increased. Therefore, the net yarns 40 and 41 are resin-processed. Specifically, the resin processing is to provide the net yarns 40 and 41 with a coating film 42 of a synthetic resin having good weather resistance, for example, a thermoplastic synthetic resin such as polyvinyl chloride or polyethylene.
As shown in FIG. 6, the coating film 42 is also formed on the intersecting portion of the mesh yarns 40 and 41 to prevent the displacement of the intersecting portion, that is, the deformation of the mesh. The coating film 42 is formed by dipping the net element into a molten resin liquid or spraying or applying the molten resin onto the net element. A part of the resin of the coating film 42 impregnates the fibers of the net yarns 40 and 41 to provide a wedge effect, so that good integration with the net yarns 40 and 41 is ensured and they do not peel off. The coating film 42 has an advantage of preventing moisture content and at the same time imparting moderate weight and appropriate rigidity to the net body 4 to improve shape retention.

The marking piece 5 is made of a cloth or sheet having a high-luminance reflection property, and has desired characters, figures, symbols, etc. on its surface.
Attention display 50 consisting of one or more is provided. The cloth or sheet having high-brightness reflection performance is made of, for example, a synthetic fiber woven fabric or a synthetic resin sheet or a composite sheet thereof having flexibility and good strength and preferably having good adhesiveness as a base material, and a fluorescent paint or the like. It is made by applying a reflective coating. The reflective coating is generally a yellow to orange color. The caution indicator 50 is a film or sheet colored in a dark color such as black or the like, which has a letter, a figure, a symbol or the like and has a predetermined contour attached to the surface of the reflective coating with an adhesive, or a letter, a number, or the like. Is directly printed or baked on the reflective coating. In the embodiment shown in FIGS. 2 and 3, the marker pieces 5 form a pair of two pieces, one for the front side and the other for the back side, and the pair of two mark pieces 5, 5 are the net body 4.
It is fixed at the same position on the front and back. In the embodiment of FIG. 5, each marking piece 5 is fixed on one of the front side and the back side of the net body 4, and on the opposite side and at the same position, a cloth or sheet having the same size and shape as the marking piece 5 is formed. The backup piece 5'is fixed. The backup piece 5'is preferably a synthetic fiber woven fabric, a synthetic resin sheet or a composite sheet thereof having flexibility and good strength and good adhesiveness.

When the marking pieces 5 are used on both sides, the marking pieces 5
Also in the case where the backup piece 5'and the backup piece 5'are combined together, the fixing method is preferably joining, or a combination of joining and sewing. The joining may be performed only on the coating film 42 of the net yarns 40 and 41 as shown in FIG. 7 (a), or as shown in FIG. 7 (b).
Not only with the coating film 42 of 0, 41, but also between the inner surfaces 51, 51 of the marking pieces 5, 5 or between the marking pieces 5 and the backup piece 5 ′ between the meshes. Good. The joining method may be adhesion or fusion, and the joining range is optional, such as the entire surface of the marking pieces 5, 5 (or the marking piece 5 and the backup piece 5 '), the entire peripheral surface, the upper edge surface or the lower edge surface only. Is. When joining only to the coating film 42 as shown in FIG. 7 (a), an adhesive is applied to the coating film 42 of the net threads 40 and 41, and the two marking pieces 5 and 5 (or the marking pieces) are attached. The piece 5 and the backup piece 5 ') can be applied to the net threads 40 and 41 by a strong pressure. Instead of this, the coating film 42
At least one surface of the marking pieces 5, 5 (or the marking pieces 5 and the backup pieces 5 ') is melted or softened by high frequency, ultrasonic wave or heating, and in that state, the marking pieces 5, 5 (or the marking pieces 5') are melted or softened. And the backup piece 5 ') can be applied to the net threads 40, 41 by strongly pressing them. When the inner surfaces of the marking pieces 5 and 5 (or the marking piece 5 and the backup piece 5 ') are adhered or welded to each other as shown in FIG. 7B, an adhesive is applied to the required area or the required area is not melted. The net yarns 40 and 41 may be softened and strongly pressed. As shown in FIG. 2 to FIG.
This is performed by sewing two marker pieces 5 and 5 (or the marker piece 5 and the backup piece 5 ') facing each other with 41 in between with the net threads 40 and 41 using the sewing thread 9. In the illustrated example, the left and right edges are sewn, but they may be sewn on the upper and lower edges or the entire circumference.

In the embodiment of FIGS. 2 and 3, the marking pieces 5 and 5 are 10 sets of front and back sides, and the warning display 5 is provided from both the front side and the back side.
In order to read 0 in a normal way (from left to right), different warning signs 50 are given to required ones of the front side marking piece 5 and the back side marking piece 5 as shown in FIGS. 2 and 3. ing. For example, on the leftmost front side marker piece 5 on the center side of the front side, the word "control" is displayed as the warning display 50,
The backside display piece 5 is displayed with a warning sign 50 “high”, the center front and back marking pieces 5, 5 are displayed with the word “limit”, and the rightmost front side marking piece 5 is displayed with “high”. On the back side marking piece 5, the letters "control" are displayed.

The net body 4 has insertion portions 4a, 4a for penetrating the supporting ropes 2, 2 along the upper edge and the lower edge. The insertion portions 4a, 4a are folded back by the required lengths at the upper and lower edges of the net body.
It may be obtained by fixing the free end side of the folded portions to the main portion side of the net element body. However, in this method, since the fixing area is reduced, the strength of the insertion portions 4a, 4a may be insufficient. Therefore, it is preferable that the insertion portions 4a, 4a have a structure in which a seamless tubular body or a seamless tubular body is internally fixed. In FIG. 6, strip sheets 8 made of a thermoplastic synthetic resin having good bending resistance and weather resistance, such as polyvinyl chloride and polyethylene, are arranged along the upper and lower edges of the back surface side of the net body. The upper and lower edges of the net element body are folded back to the back surface side of the net body so that 8 directly face each other in a half-folded state, and the portions 80, 80 close to the free ends of the facing strip sheets 8 and 8 are joined by adhesion, fusion, etc. Further, the joint 81 and its vicinity are sewn together with the front and back net threads 40 and 41 by the sewing thread 9.
When the joint strength is high, sewing may not be used together. The whole or a part of the outer surface of the band sheet 8 is joined by adhesion, fusion bonding, or the like to the coating films 42 of the net yarns 40 and 41 that configure the folded net portion 44a and the net body main portion 44b that faces the folded net portion 44a. It

In the embodiment of FIG. 8, the insertion parts 4a, 4a are
It may be formed by using a tube 8'made of a thermoplastic synthetic resin having good bending resistance and weather resistance such as polyvinyl chloride or polyethylene. In this case, for example, the folded portion 44a of the net element body 4'and the net element body main portion 44b.
Insert tube 8'between and fold back net part 44a
And the net element body main part 44b. In the case of bonding by adhesion, an adhesive may be applied to the folded net portion 44a and the net element body main portion side and pressed against the tube 8 ',
In the case of heat fusion, the region corresponding to the required range of the tube may be sandwiched by the hot plates while the tube 8'is inserted between the folded net portion 44a and the net element body main portion. And, as described above, it is preferable to use the sewing together.

On the left and right edges of the net body 4, preferably, belt-like reinforcing portions 4b, 4b formed by combining sheets are provided.
Therefore, the strip-shaped reinforcing portions 4b, 4b and the insertion portions 4a, 4a
As a result, the peripheral portion of the net body 4 has a frame shape as a whole. In FIG. 3, the strip-shaped reinforcing portions 4b and 4b and the insertion portions 4a and 4a are shown by hatching so that the frame-shaped body can be understood. The strip-shaped reinforcing portions 4b, 4b are strip sheets (or tubes) 10 made of a thermoplastic synthetic resin having good bending resistance and weather resistance such as polyvinyl chloride or polyethylene along the left and right edges on the back surface side of the net body. Arrange the obi sheet 10
Fold back the left and right edges of the net so that the
The inner surfaces of the half-folded band sheets are joined by fusion or the like, and the outer surface of the band sheet 10 and the coating film 42 of the net yarns 40, 41 forming the folded net portion 44c are joined by adhesion or fusion. is there. And, preferably, at least one line is further formed by the sewing thread 9 in a line shape with the mesh threads 40, 41.
Sew together. The strip-shaped reinforcing portions 4b and 4b need to be formed before the insertion portions 4a and 4a are provided.

FIG. 9 exemplifies a method of manufacturing the strip-shaped reinforcing portions 4c and 4d and the insertion portions 4a and 4b. As shown in FIG. 9 (a), band sheets 8 and 8 are arranged on the upper and lower edges on the back surface side of the net element body 4 ', and the belt sheets 8 and 8 are banded on the left and right edges so that the ends overlap. Arrange the sheets 10 and 10.
At this stage, it is preferable that at least a part of the band sheets 8 and 8 is bonded to the net yarn coating film of the net element body 4 '. Next, as shown in FIG. 9 (b), the left and right edges of the net element body 4'are folded back so that the inner half portions of the strip sheets 10, 10 overlap each other,
The inner surfaces of the half-folded band sheet are bonded together, and the outer surface of the half-folded band sheet is bonded with the net yarn coating film of the net element body 4 '.
When the joining is performed by heat fusion, the folded net portion 44c and the net main portion side facing the folded net portion 44c may be sandwiched by a pair of hot plates. As a result, the belt sheets 10 and 10 and the belt sheets 8 and 8 are
At the same time, the polymerized portion of is also heat-sealed and integrated. When the joining is performed by adhesion, an adhesive is applied in advance to the coating film of the net yarn of the net element body 4 ′ to adhere the strip sheets 10 and 10, and the adhesive is applied to the inner surface of the strip sheets 10 and 10. The inner surfaces of the half-fold strip sheets may be adhered to each other when they are applied and folded back. In either case, further sewing is performed as described above, if necessary. As a result, the strip-shaped reinforcing portions 4b, 4b are formed. Next, as shown in FIG. 9 (c), the upper and lower edges of the net element body 4'including the completed strip-shaped reinforcing portions 4b, 4b are folded back to join the inner surfaces of the half-folded band sheet toward the free ends, and The coating film of the net yarn of the net element body 4'is joined to the outer surface of the half-folded band sheet. Then, along with the vicinity of the joint, the mesh and the thread are sewn together. The entire portion of the belt-shaped reinforcing portions 4b, 4b that is folded back to form the insertion portion is sewn with a sewing thread,
Alternatively, further bonding is performed.

The ropes 2 and 2 are respectively penetrated through the insertion portions 4a and 4a of the net body 4, and the net body 4 is fixed to the ropes 2 and 2 by fixtures 6 and 6 having a pressing portion.
The ropes (main rope 2b, supporting rope 2a) may be wire ropes, but preferably synthetic fiber ropes, more preferably those made of high strength and low elongation fiber as the net body 4 are used. By using the high strength and low elongation fiber rope in this way, it is possible to prevent the caution sign from hanging even when the span length is large. The fixing tools 6, 6 are
The net body 4 is arranged at least at both left and right ends. Fasteners 6 and 6 fix the net body 4 to the ropes 2 and 2 so that the net body 4 is supported by the upper rope 2 when a truck or the like cuts the lower rope 2 by cutting it. belongs to. When the place where the net body 4 is used is where strong wind is likely to be blown, or when the net body 4 has a large area, the fixtures 6 and 6 are also attached to the longitudinal intermediate portion of the net body 4. In this embodiment, the fixture 6 has a cross section U
The main body 6a has a bent portion 60 having a letter shape or a similar shape, and a fastening member 6b.
Rope 2 which is inserted into the inside by pinching a and 4a.
To prevent lateral displacement of the net body. Then, the bent portion 60 is prevented from opening by the flat portions 61, 61 ahead of the pressing region being tightened by the fastening member 6b penetrating the tubular body and the net mesh, and the lateral movement is prevented. It is suppressed. As the fastening member 6b, in addition to a bolt and nut, a rivet, or a fastener having a compressible protrusion with a retaining surface at the shaft end opposite to the head can be used. The main bodies 6a may be independent from each other, but are preferably connected in the up-down direction or the left-right direction by a rod-shaped or band-shaped connection portion 62. When the connecting portion 62 is thus provided, the net body 4 can be easily stretched at right angles to the ropes 2 and 2, and the shape retaining property is improved, so that the net body 4 does not bend and is flat. Kept in. Further, the fixture (main body 6a and connecting portion 62) and the fastening member 6b may be made of metal such as aluminum alloy, but synthetic resin represented by engineering plastic or FRP material is preferable. Main body 6a of the fixing tools 6 and 6
The bent portion 60 may be formed in advance. Alternatively, it may be flat before use. FIG. 10 shows the latter example, and as shown in (a),
Front and rear plate portions 610, 610 having holes 620, 620 for inserting fastening members, and those plate portions 610, 6
It integrally has a bending portion 600 that rises in a trapezoidal or curved shape from the end of 10. If necessary, cushioning elastic pieces 630 such as rubber sheets and urethane sheets are attached to the inner surfaces of the plate portions 610 and 610 and the bending portion 600. As shown in FIG. 10 (b), the main body 6a is placed so that the bending portion 600 is positioned on the insertion portion 4a through which the rope 2 is inserted, and in this state, the plate portion 610 on the free end side is indicated by an arrow. The bent portion 60 is formed by bending and the insertion portion 4a and the support rope 2b are clamped.

When the support ropes 2a, 2a are used, the support ropes 2a, 2a are used in order to improve the usability.
A has a length that penetrates the net body 4 and extends to the left and right, and a connecting portion such as an eye is formed at the ends of the support ropes 2a and 2a by a pressure ring sleeve. By doing this, the main ropes 2b, 2b are connected to the stanchions 1, 1 via band fittings, and in this state, the product of the present invention in which the support ropes 2a, 2a are assembled is brought to the required erection position,
The connecting portions of the support ropes 2a and 2a are connected to the main ropes 2b and 2b.
The construction is completed by simply connecting the terminal connecting part and the connecting fittings 2c, 2c.

The fixing position of the marker piece 5 with respect to the net body 4 may reach the insertion portions 4a, 4a as shown in the drawing as long as the insertion of the ropes 2, 2 is not impaired. Of course, the marking piece 5 may be fixed at a position apart from the insertion portions 4a, 4a. Further, the insertion portions 4a and 4ba of the net body 4 may be provided not only on the upper and lower edge portions but also on the left and right edge portions in some cases. In this case, a strip body such as a rope or a rod may be passed through the insertion portions of the left and right edges, and the upper and lower ends of the strip body may be connected to the supporting rope.

The warning sign 3 of the present invention is supported by a supporting member, for example, ropes 2 and 2 as in the embodiment, above an entrance of a railroad crossing, an entrance of a construction site or above a road. The caution sign 3 is a plurality of divided sign pieces 5 made of cloth or sheet having high-luminance reflection performance on the front side or the back side or both the front side and the back side of the net body 4 made of synthetic fiber.
Are fixed, and the portions other than the fixed portion of each marking piece 5 are nets. Therefore, even if a strong wind blows, the wind passes through the mesh of the net body 4. Therefore, the vibration is small and the net body 4 is light in weight, so that the load on the ropes 2, 2 and the connecting portions between the ropes 2, 1 and the pillars 1, 1 can be reduced. In addition, since the marker piece 5 made of a flexible cloth or sheet is fixed to the net body 4 made of synthetic fiber, it is lightweight and flexible as a whole. Therefore, if it should come into contact with a truck carrier or the like, the rope may be damaged. It will not damage trucks, houses, people, etc. even if it is separated and fallen from two or two, and it is safe, and because it is electrically insulating, an electrical accident will occur even if it comes into contact with a trolley wire or an electric wire. Absent.

The marking piece 5 is fixed at the same position on the front and back sides of the net body 4 so as to sandwich the net body 4, or a backup piece 5'paired with the marking piece 5 places the net body 4 at the same position on the front and back sides of the net body 4. Net body 4 because it is fixed so as to sandwich
Good integrity is maintained, and the marker piece 5 does not peel off even when subjected to strong wind pressure. Moreover, when the marking piece 5 and the backup piece 5'are fixed together by bonding or fusing, and by sewing, more reliable integration with the net body 4 is obtained, and peeling is completely prevented. . 2 pieces of each marking piece 5
When the pair of marking pieces 5 and 5 are fixed on the front and back of the net body 4, the warning markings 50 and 50 are displayed on the marking pieces 5 and 5 on both sides.
Since the 50 is provided, for example, when the vehicle approaches the railroad crossing, the warning display 50 on the front side of the warning sign 3 on the entrance side can be confirmed, and the warning provided on the front exit side when the vehicle is stopped at the crossing entrance. The warning display 50 on the back side of the sign 3 can be read. Therefore, it is possible to sufficiently notify the caution content. Further, since the net yarns 40 and 41 of the net body 4 are covered with the synthetic resin coating film 42, the weight is not unnecessarily increased by being hydrated by rain or snow, and the electrical insulation is deteriorated. Absent. At the same time, since the net yarns 40 and 41 are covered with the synthetic resin coating film 42, appropriate rigidity is imparted, the flat shape is well maintained, and the synthetic resin coating film 42 is used. The marker piece 5 and the backup piece 5'can be joined easily and surely.

The net body 4 is made of a net yarn 4 of high strength and low elongation fiber.
When the mesh structure is 0, 41 and the net structure is a plain weave, the breaking elongation in the axial direction can be 6% or less, which is excellent in swelling prevention performance by wind, and vibration can be further reduced. In addition, since the flexible marker piece 5 is fixed to the net body 4 made of synthetic fiber, it is lightweight and can be rolled up and rolled up. Therefore, handling such as carrying to a site or erection is possible. It is simple and can be installed quickly. Further, the ropes 2, 2 are passed through the insertion portions 4a, 4a provided along the upper and lower edges of the net body 4, and the fixtures 6,
Since the insertion portions 4a, 4a are clamped and fixed to the ropes 2, 2 by 6, the assembling with the ropes 2, 2 is easy, and the ropes 2, 2 penetrate the upper and lower edges of the net body 4. Therefore, the shape is properly maintained even if the net body 4 is long. The fixture 6 is composed of a main body 6a having a bent portion 60 having a U-shaped cross section or a similar shape, and a fastening member 6b. The bent portion 60 presses the insertion portions 4a and 4a around the outer circumference and is inserted into the inside. When the rope 2 is clamped and the flat portions 61, 61 at the tip of the bent portion 60 are fastened by the fastening member 6b, the opening of the fixing tool 6 is prevented and the lateral movement is suppressed. Therefore, the net body 4 and the rope 2 can be reliably connected, and when the two main bodies 6a and 6a are connected by the connecting portion 62, the number of parts is reduced and the net is provided by the bracing action. The body 4 can be kept flat. When the insertion portions 4a and 4ab are formed by folding the upper and lower edges of the net body 4 with the tubular body inside, the strength of the insertion portions 4a and 4a can be improved. Further, when the strip-shaped reinforcing portions 4b, 4b formed by combining sheets are provided on the left and right sides of the net body 4, the insertion portions 4a, 4a and the strip-shaped reinforcing portions 4b, 4b are provided.
As a result, the net body 4 has a frame shape, so that the strength is improved and an appropriate rigidity is obtained. Then, since the upper and lower edges of the strip-shaped reinforcing portions 4b, 4b are folded back to form the insertion portions 4a, 4a, the thickness of the insertion portions 4a, 4a in this portion is increased, and a strong clamping force is applied to the fixtures 6, 6. It is not damaged even if given, and the net threads 40, 41 on the surface of the strip-shaped reinforcing portions 4b, 4b are the ropes 2,
Since it is in contact with 2, the contact pressure becomes high and a strong tightening force can be applied, so that the rope can be securely fixed.

[0023]

According to the present invention described above, a plurality of marker pieces 5 are provided on a net body 4 made of synthetic fiber yarn, which is provided with a caution display 50 on the surface of a cloth or sheet having high-brightness reflection performance. Since the net body 4 is provided with the insertion portions 4a, 4a of the support strips along the upper and lower edges, the insertion portions 4a, 4a are fixed to the support strips by the fixtures 6, 6. , The structure is simple and lightweight, there is little vibration, there is no danger at the time of dropping, and a highly safe caution sign that does not cause electric accidents such as electric shock can be provided. Since it can be moved to the installation position, it can be used as a caution sign that is easy to handle. In particular, when the marking pieces 5 and 5 are fixed on both the front and back sides of the net body 4 with the net body 4 sandwiched between them, the marking pieces 5 and 5 are not easily peeled off even if the wind is received, and the cautions can be visually confirmed from both the front side and the back side. It is possible to obtain excellent effects such as higher

[Brief description of drawings]

FIG. 1 is a front view showing a railroad crossing caution sign to which the present invention is applied.

FIG. 2 is an enlarged front view of the caution sign of the present invention.

FIG. 3 is a rear view of the caution sign of the present invention.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is an explanatory view showing another embodiment of a caution sign according to the present invention, which is a front part and a rear part.

FIG. 6 is an enlarged view of a corner of the caution sign of the present invention.

FIG. 7 is a partially enlarged cross-sectional view illustrating a fixing mechanism for a marking piece or a backup piece according to the present invention.

FIG. 8 is an enlarged cross-sectional view showing another example of the insertion portion in the present invention.

FIG. 9 is a plan view illustrating a method of manufacturing the insertion portion and the strip-shaped reinforcing portion according to the present invention.

FIG. 10 is an explanatory diagram showing an example of a fixture according to the present invention.

[Explanation of symbols]

 2 rope 4 net body 4'net element body 4a, 4a insertion part 4b, 4b band-shaped reinforcing part 5 labeling piece 5'backup piece 6 fixing tool 6a main body 6b fastening member 40, 41 net thread 42 coating film 60 bending part

Claims (10)

[Claims] 1. A net body 4 made of synthetic fiber yarn, and a caution mark 5 on the surface of a cloth or sheet having high-brightness reflection performance.
A plurality of marking pieces 5 provided with 0 are fixed, and the net body 4 is provided with insertion portions 4a and 4a of the support strips along the upper and lower edges.
A caution sign in a railroad crossing or the like, characterized in that the insertion portions 4a, 4a are fixed to a support strip by fixing tools 6, 6. 2. The caution sign for a railroad crossing or the like according to claim 1, wherein the net body 4 includes one having a plain weave structure of net yarns 40 and 41 made of high-strength and low-elongation fibers. 3. The caution sign for a railroad crossing or the like according to claim 1 or 2, wherein the mesh threads 40, 41 include those covered with a synthetic resin coating film 42. 4. Each of the marking pieces 5 is a pair of two pieces,
The caution sign at a railroad crossing or the like according to any one of claims 1 to 3, which is fixed on the front surface side and the back surface side of the net body 4 with the net body sandwiched therebetween. 5. Each of the marking pieces 5 is arranged on either the front surface side or the back surface side of the net body 4, and a backup piece 5'made of a cloth or a sheet is arranged on the opposite side of the same position. The caution sign at a railroad crossing or the like according to any one of claims 1 to 3, wherein the piece 5'is fixed with the net body sandwiched therebetween. 6. The insertion parts 4a, 4a include those in which the edges of the net element body 4'are folded back through a tube or a sheet and are fixed to the net element body main body side. Caution signs on level crossings etc. 7. The net body 4 has strip-shaped reinforcing portions 4 on both left and right ends.
The caution sign at a railroad crossing or the like according to any one of claims 1 to 6, which includes b and 4b. 8. The caution sign for a railroad crossing or the like according to claim 1, wherein the fixing is a combination of joining and sewing. 9. The railroad crossing or the like according to claim 1, wherein the fixtures 6 and 6 are provided with a bent portion 60 which presses the insertion portions 4a, 4a, through which the supporting strips are inserted, to clamp the surrounding portions. Attention sign. 10. The support strip is a rope, a cable, a rod,
The caution sign at a railroad crossing or the like according to any one of claims 1 to 9, which is one of beams.