JPH04120782U - line tape - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide a line tape that has excellent durability and cold resistance, can firmly hold the fixing nail 10, and can be used with sufficient safety. [Structure] At least one thread is located on each side in the width direction of the insertion holes 2, 2' formed in both end areas 4, 4' of the tape body 1, and within the projection of the nail head 9. The fiber threads 5 are embedded therein, and the upper surfaces of the tape at both end regions 4, 4' are flat surfaces 8, 8'. [Effect] The nail head 9 is supported by the fiber threads 5, and the fixing nail 10 is firmly held even when the tape is peeled off, and sand etc. are prevented from forming between the lower part of the nail head 9 of the fixing nail 10 and the flat surfaces 8, 8'. There is no risk of accumulation, there is no problem with reuse, and it can be easily reinstalled.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for use on the ground and floors of playgrounds, sports/play courts, fields, plazas, etc. This relates to line tape laid on surfaces.

0002

[Conventional technology]

In recent years, synthetic trees have replaced the white lines drawn on playgrounds, sports and play courts, etc. Greasy tape, or line tape, has come into use.

0003 This type of line tape is extruded from soft vinyl chloride. There are multiple fiber threads such as glass fibers in the tape at predetermined intervals in the longitudinal direction. There are some line tapes that are embedded in the opposite direction, and there are holes for inserting fixed nails at both ends of these line tapes. It was used by fixing it to the ground with nails through the hole.

0004 However, the soft vinyl chloride line tape has a large amount of expansion and contraction, so , even when it was stretched and fixed on the ground, it quickly stretched and loosened, causing the tape to swell in some areas. It has disadvantages such as being bent, bending, and easily coming off. In-tape is made of glass fibers that are separated and bonded together. In addition, the thickness of the tape above and below it is thinner, so force acts in the width direction. When the upper and lower parts of the glass fiber threads are torn, the glass fibers are unraveled and exposed, causing them to be torn. There were problems with durability, such as breakage due to excessive wear and tear.

[0005] Therefore, as shown in FIG. The fiber threads 25 are bonded to each other with an adhesive 26, and the longitudinal length inside the synthetic resin tape 21 is A plurality of fiber threads of glass fiber of the tape 21 are buried at a predetermined interval in the direction. A protrusion 27 is formed on the upper surface where the tape 25 is buried, and fixing nails are attached to both ends of the tape 21. We proposed line tape A with insertion holes 22 for 30 mm, which has excellent durability. This line tape is designed to prevent slipping and has extremely low expansion and contraction, making it easy to lay. It was.

[0006]

[Problem that the idea aims to solve]

However, Line Tape A lacks cold resistance, especially in high-altitude summer resorts and cold-weather areas. When used on the ground, the fixing nails 30 installed at both ends of the tape 21 may be damaged due to frost damage. Cracks may occur from the insertion hole 22, or the tape may partially stretch or shrink due to this frost. Therefore, this line tape A must be replaced frequently.

[0007] Moreover, the fixing nail 30 was not stable during the tape peeling work for this replacement. In many cases, it was torn off from the insertion hole 22.

[0008] Further, as shown in FIG. 9, the nail head 29 of the fixing nail 30 is located above the protrusion 27a and the protrusion 27b. As it is placed on the shelf, the fixing nails 30 gradually come up, and the protrusions 27 Sand B has accumulated between a, 27b and the lower part of the nail head 29, and this sand B cannot be removed even if you use a broom etc. Since it is difficult to remove it, it is very dangerous and can cause accidents during play. Ta.

[0009] In view of the above-mentioned problems, this invention has excellent cold resistance and is easy to use when peeling off the tape. However, it can hold the fixed nail firmly and can be used with peace of mind. The purpose is to provide line tape that can be used.

0010

[Means to solve the problem]

In order to achieve the above object, the present invention takes the following technical measures.

[0011] In other words, it is a band-shaped line tape made of synthetic resin, and the widthwise ends of the tape are Nearby, insertion holes 2, 2' for fixing nails 10 are bored at approximately equal intervals along the longitudinal direction. In the longitudinal direction and parallel to the inner widthwise central area 3 and both end areas 4, 4' of this tape. A plurality of fiber threads 5 are buried in the central region 3, and a plurality of fiber threads 5 in the central region 3 are buried. In the case where a protrusion 7 is formed bulging on the upper surface thereof, the insertion holes 2, 2', and located within the projection of the nail head 9. One fiber thread 5 is embedded, and the upper surface of the tape at both end regions 4, 4' is flat. It is characterized by having a flat surface of 8,8'.

0012

[Effect]

The upper surface of both end areas 4, 4' of the line tape is a flat surface 8, 8', into which the fixing nail 10 is inserted. Through holes 2 and 2' are bored, and several fibers are placed on both sides of the through holes 2 and 2' in the width direction. Since the thread 5 is buried, the fixing nail 10 is inserted into the insertion hole 2, 2' and fixed to the ground etc. When the nail head 9 is supported by the fiber thread 5, it remains fixed even when the tape is peeled off. Hold fixed nail 10 firmly.

[0013] In addition, the lower part of the nail head 9 of the fixed nail 10 and the upper surface of both end regions 4, 4' are in close contact with each other in a flat plane. There is no risk of sand etc. accumulating in between.

[0014] Furthermore, protrusions 7 are formed on the upper surface of the central region 3 of the tape where the fiber threads 5 are embedded. It also has a reinforcing and anti-slip effect.

[0015]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings.

[0016] The main body 1 of the flat and band-shaped line tape according to the present invention is as shown in Figs. 1 and 2. The tape body 1 is made of synthetic resin material, such as soft vinyl chloride, and Near the end, there is a hole (insertion hole) 2 with a diameter of 2.0 to 3.0 mm extending in the longitudinal direction for nail insertion. Holes are drilled at approximately equal intervals of 5 to 6 cm, and the holes are symmetrical to the center between each of the two insertion holes. Similar insertion holes 2' are also bored at approximately equal intervals near the end.

[0017] In the width direction central area 3 and both end areas 4, 4' of the tape body 1, there are shown figures 1 and 4. As shown in Figure 3, a plurality of fiber threads 5 are buried in parallel in the longitudinal direction. ing.

[0018] This fiber yarn 5 may be a long fiber such as monofilament or multifilament. Glass fiber yarn (150d x 5), other carbon, steel, etc. are used. The fibers constituting these fiber threads 5 are coated with an adhesive 6, such as vinyl chloride, as shown in FIG. They are glued together and covered with a roll adhesive.

[0019] In this way, the fibers are strongly connected to each other by the adhesive 6, and Since the adhesive 6 applied to the outer periphery of the fiber thread 5 is integrally bonded to the tape body 1, , the part where the fiber threads 5 are embedded has a strength equal to or higher than that of other parts of the tape body 1. have

[0020] Therefore, there is no fear that the tape body 1 will tear from the part where the fiber threads 5 are embedded. It is possible to ensure sufficient strength.

[0021] In addition, adhesive 6 ensures the adhesion of fibers and has affinity with the material of tape body 1. Any material may be used as long as it can be integrally combined.

[0022] As shown in FIGS. 1 and 3, the fiber threads 5 are, for example, seven threads arranged at equal intervals in the central region 3. , In both end regions 4, 4', there are 15 strips in total, 2 strips on each side in the width direction of the insertion holes 2, 2'. are buried in parallel.

[0023] A protrusion 7 is formed in a bulging manner on the upper surface of the central region 3 where the fiber thread 5 is buried. , these protrusions 7 further increase the strength of the tape body 1 and provide an anti-slip effect. This eliminates the risk of players stepping on the line tape and slipping. .

[0024] The extent of the protrusion 7 is determined by the thickness of the tape body 1 and the tensile strength in the width direction of the tape. It is sufficient that it maintains a sufficient amount of moisture and exhibits a sufficient anti-slip effect. On the other hand, the upper surface where the fiber thread 5 is buried in the both end regions 4, 4' is a flat surface 8, 8'. It is said that

[0025] As shown in FIG. Nails with a flat head and screw shape, etc., with a nail head diameter of 7 to 9 mm and a length of 4 to 6 cm. Insert the fixing nail 10, and use a hammer or the like to tighten the tennis court as shown in FIGS. 5 and 6. It is used by nailing it to the ground or floor of the building, fixing it, and laying it down.

[0026] At this time, the lower part of the nail head 9 of the fixing nail 10 and the flat surfaces 8, 8' are connected as shown in FIGS. 4 and 6. The sand is placed in close contact with the sand to prevent sand from accumulating in between. The ball is irregular during a lay, or a player slips and rolls due to the sand. Almost all accidents can be eliminated.

[0027] Furthermore, the fiber threads 5 in the both end regions 4, 4' are on both sides of the through holes 2, 2' in the width direction, respectively. It is located within the projection of the nail head9, so even if it is located at a high altitude, Even if used in a hot summer resort or cold resort, it will prevent damage from cracks caused by frost pillars. Also, it can be torn from the insertion holes 2, 2' when removing the tape. It is not only durable but also has excellent cold resistance.

[0028] The above line tape is formed, for example, as follows.

[0029] First, the fiber thread 5 is embedded and molded using an adhesive 6 (for example, chloride By passing the fiber thread 5 through an adhesive bath 11 filled with vinyl sol), Adhesive 6 is dipped into the inside and attached to the outer peripheral surface.

[0030] This is passed through a heating drying oven 12, where the adhesive 6 is solidified. The fiber threads 5 are passed through the passage of the tape extrusion crosshead 14 of the extruder 13 at predetermined intervals in the width direction. While passing through the crosshead 14, vinyl chloride is applied around the fiber thread 5. The tape body 1 with fiber threads 5 embedded therein is formed by extrusion.

[0031] In this way, the tape body 1 led out from the crosshead 14 is transferred to the water cooler 15. It is cooled and solidified to become line tape.

[0032] Finally, insert the line tape near both ends in the width direction at predetermined intervals. Holes 2, 2' are provided and completed.

[0033] The number of fiber threads 5 buried in the central area 3 of the line tape depends on the tape width. You just have to decide accordingly, and if the width of tape body 1 is narrow, reduce the number accordingly. Just do it.

[0034] Similarly, the number of fiber threads 5 buried in both end regions 4, 4' depends on the size of the nail head 9. All you have to do is decide.

[0035] In addition, the thickness and burial interval of the fiber threads 5 are determined by the size of the line tape and the intended use. It is selected as appropriate depending on the purpose.

[0036] The insertion holes 2 and 2' are not only provided at both ends, but also in the center area 3 depending on the width of the tape. It can be provided with both end regions 4, 4'.

[0037] Further, concave small guide grooves 16, 16' are formed by connecting the insertion holes 2 and 2 at one end, respectively. If installed parallel to protrusion 7, it can serve as a guide or guide rail when nailing. It is preferable.

[0038]

[Effect of the idea]

As mentioned above, the line tape according to the present invention has perforations near both ends in the width direction. located on both sides in the width direction of the insertion holes 2 and 2' of the fixing nail 10, and within the projection of the nail head 9. At least one fiber thread 5 is buried in each of the two end regions. The upper surface of the tape 4,4' is a flat surface 8,8', so the lower part of the nail head 9 of the fixing nail 10 and both ends The flat surfaces 8 of the areas 4 and 4' are in close contact with each other, and there is no risk of sand etc. accumulating between them.

[0039] In addition, the nail head 9 is firmly supported by the fiber thread 5 inside the line tape, making it durable. It has excellent durability and cold resistance, so even when peeling off the tape, you can use a fixing nail of 10. Can be held well, can be reused without any problems, and can be easily reinstalled. It is possible to do so.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 shows the same front view.

FIG. 3 is a partially omitted cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is a partially enlarged sectional view of FIG. 3;

FIG. 5 is a usage diagram of an embodiment of the present invention.

6 is a sectional view taken along line BB in FIG. 5. FIG.

FIG. 7 is an explanatory diagram of an example of a manufacturing method according to an embodiment of the present invention.

FIG. 8 is a perspective view showing a conventional example of the present invention.

FIG. 9 is an enlarged sectional view of the same part.

[Explanation of symbols]

1 Tape body 2 Insertion hole 2’ insertion hole 3 Central area 4 End area 4' end area 5 Fiber yarn 6 Adhesive 7 Projections 8 Flat surface 8' flat surface 9 Nails 10 Fixed nail

Claims (1)

[Scope of utility model registration request] Claim 1: A line tape made of synthetic resin in the form of a band, in which insertion holes (2), (2') for fixing nails (10) are formed approximately equally in the longitudinal direction near both ends of the tape in the width direction. In addition to being perforated at intervals, a plurality of fiber threads (5) are provided in the widthwise central region (3) and both end regions (4), (4') of the tape in the longitudinal direction and parallel to each other. The fiber thread (5) in the central region (3) is buried and the protrusion (7) is bulged on the upper surface where the fiber thread (5) is buried, and the both end regions (4), (4') Insertion hole (2), (2')
At least one fiber thread (5) is embedded in each of the nail heads (9) located on both sides in the width direction and within the projection of the nail head (9), and the two end regions (4), ( A line tape characterized in that the upper surface of the tape (4') is a flat surface (8) (8').