JP5363634B1 - Ball-proof net and method for manufacturing ball-proof net - Google Patents

Abstract

[PROBLEMS] (1) Even if a person rides on the extra part of the ball-proof net, it slips and does not fall over easily. (2) It slips even if the user steps on or rides the ball-proof net placed at one corner of the facility. Therefore, it is possible to achieve at least one of (3) reducing the possibility that a ball that rolls or flies vigorously toward the end of the ball-proof net moves to the adjacent area as much as possible.
A hanging ball-proof net used indoors, the net yarn is covered with a rubber material 21, and the rubber material is entangled inside the fiber of the net yarn. A ball-proof net characterized by entering.
[Selection] Figure 2

Description

  The present invention relates to a ball-proof net and a method for manufacturing the ball-proof net, and more particularly to a suspended ball-proof net used indoors and a method for manufacturing the ball-proof net.

  2. Description of the Related Art Conventionally, an indoor sports facility where a ball game is performed indoors, such as a gymnasium, has been provided with a ball-proof net so that the ball does not jump out of the field. A ball-proof net is used by suspending from a wire or the like that is stretched approximately horizontally near the ceiling of the gymnasium, with an appropriate mesh, knitting method, net thickness and type of net selected according to the type of ball game. . Thereby, the inside of an indoor sports facility is divided into a plurality of areas by a ball-proof net, and movement of a sphere between these areas can be restricted. Therefore, it is possible to prevent the user from hitting a ball that suddenly flies from an adjacent area, or from falling over and injured by a ball that rolls unexpectedly.

  In the above-described conventional ball-proof net, the length d2 from the suspension base end to the bottom end of the net is generally longer than the distance d1 from the suspension base end to the floor (d1). <D2). That is, by making the length d2 longer than the distance d1, the ball-proof net is provided with a portion (hereinafter referred to as a surplus portion) extending so as to be accumulated or crawled on the floor surface. Thereby, it is possible to prevent a ball rolling in the vicinity of the floor surface toward the adjacent area from moving to the adjacent area through the ball-proof net.

  However, there is a possibility that the user of the indoor sports facility steps on the surplus part. Here, conventionally used ball-proof net materials have a friction coefficient between the floor surface, such as polyethylene and polyester, and the friction coefficient between the floor surface or ball-proof net and the user's shoe bottom surface. Most of the materials have a smaller coefficient of friction than the above, and when the user steps on the surplus part, there is a risk that the friction will suddenly decrease, causing slipping and falling.

  In addition, ball-proof nets that are not used may be put together in an indoor sports facility. There is a possibility that the user steps on a part of the ball-proof net or the user gets on the ball-proof net. In such a case as well, there is a possibility that the user slips and falls.

  Also, if the ball flew near the floor and rolled in the net direction, the possibility that the ball would pass under the surplus and enter the adjacent area was not zero. In addition, if a ball hits near the left and right edges of a ball-proof net that is not fixed to the wire, the ball-proof net cannot catch the ball and the possibility of the ball entering the adjacent area is not zero. It was.

  The present invention has been made in view of the above problems. (1) Even if a person rides on an excess part of the ball-proof net, it is difficult to slip and fall down. (2) A ball-proof net placed at one corner of the facility. Even if the user steps on or rides on the ball, it is difficult to slip and fall, and (3) The possibility that a ball that rolls or jumps vigorously toward the edge of the ball-proof net moves to the adjacent area is reduced as much as possible. The object is to realize at least one of the above.

  One aspect of the present invention is a suspended ball-proof net used indoors, and at least a part of the net yarn is coated with a rubber material on the surface, and the rubber material and The structure is characterized in that the integrated rubber material is entangled into the mesh thread gap.

  In this configuration, the rubber material that is integrated with the rubber material that covers the surface of the mesh yarn enters so as to be entangled in the gap of the mesh yarn of the ball-proof net, so the rubber material that covers the surface of the mesh yarn is The net yarn and the rubber material are firmly adhered, and even if the ball-proof net is stepped on or rubbed, the rubber material covering the surface of the net yarn is not easily peeled off from the net yarn. Therefore, (1) even if a person rides on the surplus part of the ball-proof net, it is difficult to slip and fall, and (2) it slips even if the user steps on or rides the ball-proof net placed at the corner of the facility. It is possible to realize at least one of (3) reducing the possibility that a ball that rolls or flies vigorously toward the end of the ball-proof net will move to the adjacent area as much as possible.

  Moreover, in one of the selective aspects of the present invention, it is constituted by a drooping portion that extends substantially vertically to the floor surface when installed indoors, and a surplus portion that further extends from the lower end of the drooping portion. The surplus portion of the mesh yarn is covered with a rubber material, and a rubber material integrated with the rubber material is entangled in the gap of the mesh yarn. The surface of the yarn is not covered with the rubber material, and the rubber material does not enter the inside. According to the said structure, even if a person gets on the surplus part of a ball-proof net skirt, it will become difficult to slip and fall.

  Moreover, in one of the selective aspects of the present invention, it is constituted by a drooping portion that extends substantially vertically to the floor surface when installed indoors, and a surplus portion that further extends from the lower end of the drooping portion. The surplus portion mesh yarn and the drooping mesh yarn in a predetermined range from the boundary with the surplus portion are coated with a rubber material and integrated with the rubber material. Enters the gap of the mesh thread, and the mesh thread of the hanging part in the other part is not covered with the rubber material, and the rubber material does not enter the interior. This is a characteristic feature. According to this configuration, it is possible to reduce as much as possible the possibility that a ball that rolls or flies vigorously toward the end of the ball-proof net moves to the adjacent area.

  Moreover, in one of the selective aspects of the present invention, the mesh yarn is formed of polyester fibers. According to the inventor's experiment, the ball-proof net using the polyester fiber has been found to exhibit a characteristic that the rubber material attached to the net is less likely to peel off than the ball-proof net using the polyethylene fiber. Therefore, by adopting this configuration, it is possible to provide a ball-proof net having a high anti-slip effect against trampling and rubbing.

Moreover, in one of the selective aspects of the present invention, the mesh yarn is characterized in that the fibers have a density of 1000 fibers / mm ² or more. According to the experiment by the present inventor, it has been found that when the fiber density in the cross section of the net yarn is 1000 fibers / mm ² or more, the rubber material attached to the surface or inside of the net is particularly difficult to peel off. Therefore, by adopting this configuration, it is possible to provide a ball-proof net having a high anti-slip effect against trampling and rubbing.

  Moreover, in one of the selective aspects of the present invention, when the mesh yarn is pressed in the vertical direction to the mesh yarn, the length of the cross section can be elastically deformed into a shape longer by 30% or more than the width. There is a configuration characterized by that. That is, if the mesh thread is flexibly deformed following the deformation of the rubber material, the force applied to the interface between the rubber material and the mesh thread is reduced, and the rubber material adhering to the surface or inside of the net is removed from the fiber of the mesh thread. It is difficult to separate, and the stress applied to the rubber material by the fiber of the mesh thread is also reduced. This makes it difficult for the rubber material to peel off from the mesh thread.

  Moreover, in one of the selective aspects of the present invention, the mesh yarn can be bent and deformed at a speed higher than the elastic deformation speed of the rubber material. That is, if the mesh thread deforms immediately following the deformation of the rubber material, the force applied to the interface between the rubber material and the mesh thread is reduced, and the rubber material adhering to the surface or inside of the net is removed from the fiber of the mesh thread. It is difficult to separate, and the stress applied to the rubber material by the fiber of the mesh thread is also reduced. This makes it difficult for the rubber material to peel off from the mesh thread.

  Moreover, in one of the selective aspects of the present invention, the mesh yarn is formed of polyester fibers thinner than 1000 denier / 18 pieces / 40 mm. According to the experiments of the present inventor, the net yarn formed of polyester fibers thinner than 1000 denier / 18 pieces / 40 mm hardly causes the rubber material to peel off, and has a very high anti-slip effect. It showed good characteristics.

  Moreover, in one of the selective modes of the present invention, the configuration is characterized in that the network is a knotless net. According to this configuration, when the user steps on the knot portion, the contact area between the net, the net yarn, and the floor surface is increased as compared with the case of the knotted net, thereby improving the anti-slip effect.

  Another aspect of the present invention is a method of manufacturing a suspended ballproof net used indoors, the step of impregnating and covering liquid rubber on the net yarn, and the liquid rubber And a step of drying the impregnated mesh yarn. According to the said structure, the above-mentioned ball-proof net can be produced easily and at low cost using liquid rubber.

  Another aspect of the present invention is a processing method for a hanging ballproof net used indoors, in which a lower portion of the ballproof net already installed indoors is partially cut off. And a step of adding a net formed of a mesh thread impregnated / coated with liquid rubber to the lower part of the ball-proof net. According to the said structure, the ball-proof net already installed in the indoor sports facility can be processed into the ball-proof net mentioned above easily and at low cost.

  As described above, according to the present invention, (1) even if a person rides on the surplus part of the ball-proof net, it is difficult to slip and fall, and (2) the user uses the ball-proof net placed at one corner of the facility. (3) at least reducing the possibility that a ball that tumbles or flies toward the end of the ball-proof net will move to the adjacent area as much as possible. One can be realized.

It is a perspective view which shows an example of the use condition of the ball-proof net which concerns on this embodiment. It is sectional drawing shown by contrasting the entanglement degree with a fiber. It is process drawing explaining the manufacturing method of a ball-proof net. It is a figure explaining the cutting position of a ball-proof net. It is process drawing explaining an example of the manufacturing method of a ball-proof net. It is a figure explaining each manufacturing process of a ball-proof net. It is a figure explaining each manufacturing process of a ball-proof net. It is a figure explaining an example of the scoring method.

Hereinafter, embodiments of the present invention will be described in the following order.
(1) Configuration of ball-proof net:
(2) Ball-proof net manufacturing method:
(3) Summary:

(1) Configuration of ball-proof net:
FIG. 1 is a perspective view showing an example of a use state of a ball-proof net. A ball-proof net 100 shown in the figure is stretched in an indoor space R of an indoor sports facility such as a gymnasium. This ball-proof net 100 is suspended from a wire W with one edge fixed to a wire W stretched between walls. A pulley, a ring, or the like is connected to the upper end of the ball-proof net 100, and the ball-proof net is slidable like a hanging curtain and is bundled in a ninety-nine fold shape near the wall. Can do.

  The lower part of the ball-proof net 100 may be fixed or semi-fixed to the floor surface F or the like. The anti-fixed state is realized by connecting a weight such as a sand bag to the lower part of the ball-proof net 100 or placing a weight on the surplus part 20. Thereby, it becomes difficult for the ball-proof net 100 to be displaced from a predetermined tension position.

  In addition, the method of extending the ball-proof net 100 in the indoor space R is not limited to suspension from the wire W, and various known methods may be employed. For example, a method of hanging from a rail or a ceiling or a floor You may employ | adopt the method of extending between the support | pillars erected on the surface F. In addition, it goes without saying that it is possible to employ various methods that will be employed in the future for hanging the ball-proof net 100 in indoor sports facilities.

  Thus, when the indoor space R is divided by the ball-proof net 100, the indoor space R is divided into a first area A1 and a second area A2 as a plurality of areas, and between the first area A1 and the second area A2. The traffic of a ball B or the like having a certain size or more can be restricted. That is, the traffic between the first area A1 and the second area A2 can be restricted for the ball B having a size that does not pass through the mesh of the ball-proof net 100.

  Next, the size of the ball-proof net 100 will be described. FIG. 2 is a diagram for explaining the size of the ball-proof net. The width of the ball-proof net 100 shown in the figure is adjusted as appropriate according to the division of the first area A1 and the second area A2, but the vertical length H of the ball-proof net 100 is determined from the wire W to the indoor space. It is formed to be longer than the distance D2 to the floor surface F of R (H> D2).

  For example, by making the vertical length H of the ballproof net 100 about 1 m longer than the distance D2 (H−D2≈1 m), about 1 m below the floor is the floor of the indoor space R when the ballproof net 100 is stretched. The surplus part 20 which will bump on the surface F is comprised. At this time, the portion excluding the surplus portion 20 constitutes a hanging portion 10 that extends so as to hang from the wire W to the floor surface F substantially vertically by its own weight. The net surface of the drooping portion 10 serves as a boundary surface that separates the first area A1 and the second area A2.

  Although the surplus part 20 is good also as the state accumulated on the floor surface F, as shown in FIG. 2, as it crawls along the floor surface F toward either one in 1st area A1 and 2nd area A2. It is common to make it lie down. This prevents the ball from rolling from the side of the first area A1 where the ball game using the ball B to be regulated is performed to the second area A2 through the ball-proof net 100.

  The net of the surplus portion 20 is anti-slip processed. Specifically, a rubber material 21 that exhibits an anti-slip effect with the floor surface F is glued to the surface of the net yarn of the net constituting the surplus portion 20. The rubber material 21 not only coats the surface of the net yarn, but is also impregnated into the fibers constituting the net yarn, and intervenes so as to be entangled with the internal fibers. Thereby, the possibility that the user who has stepped on the surplus part 20 slips and falls can be prevented as much as possible. In addition, it is easy from the net even if the net is scratched with the floor surface F or the like, or the user of the indoor sports facility steps on and presses between the user's shoes (or soles) and the floor surface F. Will not fall off. Therefore, the durability of the anti-slip effect can be improved.

  Further, as shown in FIG. 3, in addition to the surplus portion 20, the surface of the droop 10 of the hanging portion 10 having a predetermined length 30 from the boundary with the surplus portion 20 is covered with a rubber material 21. And the rubber material integrated with the said rubber material 21 may enter so that it may get entangled in the clearance gap between mesh yarns. By carrying out the anti-slip process in this way, when a ball that rolls or flies vigorously toward the hem of the ball-proof net 100 comes into contact with the predetermined range 30, it is entangled with the net by the anti-slip effect of the ball-proof net 100. When it is taken, the momentum is killed, and the possibility of the ball entering the adjacent area can be reduced as much as possible.

  Further, as shown in FIG. 4, when the ball-proof nets are removed and deposited in the corners of an indoor sports facility, the ball-proof nets 100 are in contact with the floor surface F, and the ball-proof nets 100 are in contact with each other. If the rubber material 21 is covered and the rubber material is also inserted into the contact portion, etc., it is possible to prevent the possibility that a user who has stepped on or stepped on the ball-proof net 100 will slip and fall. .

The net yarn of such a ball-proof net preferably has at least one of the following characteristics.
The first feature is a density of about 1000 fibers / mm ² or more that constitutes the net yarn. According to the experiment by the present inventor, when the fiber density in the cross section of the net yarn is about 1000 fibers / mm ² or more, the rubber material attached to the surface or inside of the net is particularly difficult to peel off. That is, it can be seen that by setting the density of the fibers constituting the mesh yarn to about 1000 fibers / mm ² or more, it is possible to provide a ball-proof net having a high anti-slip effect against trampling and rubbing. On the contrary, when the density of the fibers constituting the fiber is less than a predetermined amount, since the stress such as trampling is directly applied to the net yarn, the lateral stress applied when the user etc. slips is applied to the net yarn. As a result, the stress is directly applied to the interface of the rubber material, and the rubber material 21 is easily peeled off from the mesh.

  The second feature is that when the mesh thread is pressed in the vertical direction, the length of the cross section can be elastically deformed into a shape longer by 30% or more than the width. By having such characteristics, when the mesh thread is stepped on and deformed by a user or the like, the mesh thread itself is deformed into a flat shape, and the compressive stress is absorbed by the elastic deformation of the rubber material. That is, since the mesh yarn is flexibly deformed immediately following the deformation of the rubber material that has entered the inside while covering the mesh yarn, the local cutting force is less likely to be applied to the rubber material, and the rubber material is removed from the mesh yarn. It becomes difficult to peel off. Further, the net yarn that has been deformed into a flat shape with respect to stress such as trampling becomes difficult to roll when trampled, so that the anti-slip effect is also improved.

  The third feature is that the net yarn can be bent and deformed at a speed higher than the elastic deformation speed of the rubber material. That is, the net yarn has sufficient flexibility. By having such a feature, the net yarn can be immediately deformed following the deformation of the rubber material. As a result, the force applied to the interface between the rubber material and the net yarn is reduced, the rubber material adhering to the surface or inside of the net is not easily separated from the fiber of the net yarn, and the stress applied by the fiber of the net yarn to the rubber material is small Become. Thereby, it becomes difficult for the rubber material 21 to peel off from the net yarn.

  As a specific fiber having the above-described features, for example, according to the experiment of the present inventor, it is equivalent to the user's stepping on the net yarn of a 1000 denier / 18 pieces / 40 mm polyester ball-proof net. It was found that when compressive stress was applied, the mesh thread was deformed into a flat shape with an ellipticity of about 0.7. That is, if the polyester net of 1000 denier / 18 pieces / 40 mm is used, the rubber agent is not easily peeled off from the net yarn even when stress is applied by treading or the like, and it is preferably used as the net yarn used for the net of this embodiment. You can see that

  On the contrary, for example, according to the experiment of the present inventor, when compressive stress equivalent to the user's stepping is applied to the net yarn of 400 denier / 44 pieces / 37.5 mm ball-proof net made of polyethylene, Was found to deform into a flat shape with an ellipticity of only about 0.9. For this reason, it is understood that when the stress in the lateral direction is applied, the rubber material 21 is easily peeled off from the net yarn, and is not suitable as the net yarn used for the net of this embodiment.

  The three features described above are also related to the filling rate of the net yarn. That is, when the filling rate of the mesh yarn is low, the rubber material is firmly impregnated inside because there are many gaps inside, and the integrity of the rubber material 21 covering the surface and the rubber material impregnated inside is good. As a result, the rubber material 21 covering the surface is not easily peeled off.

  The fourth feature is that the mesh yarn is composed of a knotless net. When the ball-proof net 100 is formed of a knotless net, the floor surface F and the mesh thread come into surface contact regardless of which part the user steps on, so that the stress is dispersed and the rubber material 21 is not easily peeled off. On the contrary, when the ball-proof net 100 is constituted by a knotted net, when the user steps on the knot portion, the contact area between the floor surface F and the net yarn is small, and a large stress is applied to a minute part, and the rubber at that part is added. The material will easily peel off.

(2) Ball-proof net manufacturing method:
Next, a method for manufacturing the above-described ball-proof net 100 will be described with reference to FIG. FIG. 5 is a process diagram illustrating an example of a method for manufacturing a ball-proof net, and FIGS. 6 and 7 are diagrams illustrating each process of manufacturing the ball-proof net. In addition, in the manufacturing method shown in FIG. 5, the method of connecting the rubber | gum material 21 to the lower end of a normal net | network, separately creating the processing net | network which made the rubber | gum material also enter into the inside is produced. Although described as an example, the manufacturing method of the ball-proof net 100 is not limited to this, and a process of covering the rubber material 21 directly on the lower portion of a normal net and inserting the rubber material inside is also performed. You can go. Hereinafter, the manufacturing method shown in FIG. 5 will be specifically described.

  First, the lower part of the normal ball-proof net 200 is cut by a predetermined length (S1). FIG. 6 is a diagram for explaining the predetermined amount. As shown in FIG. 6 (a), when the distance from the upper end of the net to the floor when the net is actually extended to the indoor sports facility to be constructed is d1, and the length to the lower end of the net is d2. As shown in FIG. 6B, the predetermined amount to be cut is d2-d1-Δ. This Δ indicates the length of a portion that becomes a bend margin when connecting the net body 200 ′ with the lower end cut off and the processing net 300.

  Next, as shown in FIG. 7A, the processing net 300 has the same width as that of the normal ball-proof net 200 and the length is prevented throughout the manufacturing method of the ball-proof net 100. The ball net 200 is formed to have the same length as the shortened amount d1-d2 (S2). In addition, process S1 and process S2-S4 can be implemented in random order.

  Next, the manufactured processing net 300 is immersed in liquid rubber (S3). The soaking time at this time is set so that the liquid rubber is sufficiently impregnated into the net yarn. In addition, the liquid rubber can penetrate into the fibers of the processing net 300 in balance with the fiber gaps of the nets of the processing net 300, and the liquid rubber once penetrated into the fibers can be easily removed from the fibers. It is preferable that it does not flow out.

  The inventor of the present application obtained favorable results by using, for example, Yutaka Make (registered trademark) liquid rubber BE-1 as a liquid rubber that easily penetrates into the fiber and does not easily flow out after having penetrated into the fiber. The liquid rubber BE-1 is an aqueous clear type liquid rubber, and its composition is 40 to 50% acrylic resin, 3% antifoaming agent, 50% surfactant, and 40 to 50% water. And about the 1000d / 18 piece / 40mm polyester net | network mentioned above, when immersed in liquid rubber BE-1 for about 1 minute, the liquid rubber could fully be impregnated to the inside of a fiber.

  Next, the liquid rubber adhered to the net is dried (S4). When the above-mentioned polyester net of 1000 denier / 18 pieces / 40 mm was impregnated with liquid rubber BE-1, when it was allowed to stand in air at room temperature for about 12 hours or more, the liquid rubber dried and the rubber The material solidified in a state where it was entangled with the fiber while covering the mesh yarn.

  Next, as shown in FIG. 7 (b), the processing net 300 to which the liquid rubber is attached is crumpled using a twisted thread 400 at the lower end of the net body 200 'cut at the lower end. (S5). At this time, the lower end of the net body 200 ′ whose lower portion is cut remains the turn margin portion 210 having the frame portions f 1, f 2, f 3,... At a portion corresponding to the predetermined amount Δ.

  FIG. 8 is a diagram for explaining an example of the scoring method. As shown in FIG. 8 (a), among the mesh yarns forming the frame portions f1, f2, f3,..., The side mesh yarns are side mesh yarns a1, a2, a3,. If the upper mesh yarns are upper mesh yarns b1, b2, b3,... And the lower mesh yarns are lower mesh yarns c1, c2, c3,. 8 (b), the upper mesh yarn b1 and the side mesh yarn a1 are gathered together, and the upper mesh yarn b2 and the side mesh yarn a2 are joined together as shown in FIG. The lower mesh yarn c1 is gathered together and the upper mesh yarn b3, the side mesh yarn a3, and the lower mesh yarn c2 are gathered together and joined together with the kite yarn. As a result, the net body 200 ′ and the processing net 300 can be firmly attached to each other.

  When the ball-proof net 100 created as described above is installed in the indoor sports facility of the construction site, the hanging part is constituted by the normal ball-proof net 200, while the surplus portion 20 at the lower end of the ball-proof net 100 is for processing. The network 300 is configured. Thereby, when the user etc. of an indoor sports facility step on the surplus part 20, the net | network which is hard to slip and cannot fall easily can be provided. Further, even if the ball rolls from the second area A2 side shown in FIG. 1 toward the net and tries to dive under the surplus portion 20, the anti-slip effect of the rubber material 21 attached to the surplus portion 20 The rolling rotation is suppressed, and it becomes difficult for the ball to come out to the first area A1 side. Thereby, possibility that a user will fall with the ball | bowl of an adjacent area can be reduced as much as possible.

  In addition, you may perform the manufacturing method demonstrated above directly with respect to the existing ball-proof net in an indoor sports facility. That is, the lower part of the existing ball-proof net is partially cut off to prepare a processing net that matches the size of the ball-proof net. Then, the prepared processing net is attached to the lower part of the ball-proof net installed in the indoor sports facility so as to be added on the spot. Thereby, the ball-proof net 100 having an anti-slip function can be manufactured on the spot without collecting the existing ball-proof net in a factory or the like.

(3) Summary:
The ball-proof net 100 according to the embodiment described above is a hanging-type ball-proof net 100 used indoors, and its net yarn is covered with a rubber material 21 and the net yarn is Rubber material enters the inside of the fiber so as to be entangled. Therefore, when the ball-proof net 100 is extended to an indoor sports facility, a user or the like of the indoor sports facility steps on the surplus portion 20 that is deposited on the floor surface F or placed so as to crawl along the floor surface F. Sometimes, the risk of the user or the like slipping and falling can be prevented.

  Note that the present invention is not limited to the above-described embodiments and modifications, and the structures disclosed in the above-described embodiments and modifications are mutually replaced, the combinations are changed, the known technique, and the above-described implementations. Configurations in which the configurations disclosed in the embodiments and modifications are mutually replaced or the combinations are changed are also included. Further, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Drooping part, 20 ... Surplus part, 21 ... Rubber material, 30 ... Predetermined range, 100 ... Ball-proof net, 200 ... Ball-proof net, 200 '... Net main part, 210 ... Rolling part, 300 ... Processing net , 400 ... twisted yarn, A1 ... first area, A2 ... second area, B ... ball, F ... floor surface, W ... wire, a1-a3 ... side mesh, b1-b3 ... upper mesh, c1 ~ C3 ... lower mesh thread, f1 to f3 ... frame part

Claims (10)

A hanging ballproof net used indoors,
At least a part of the mesh thread is covered with a rubber material on the surface, and a rubber material integrated with the rubber material enters the gap of the mesh thread ,
The net yarn is a ball-proof net having a density of 1000 fibers / mm ² or more . A hanging part extending so as to hang down to the floor substantially vertically when installed indoors;
A surplus part further extending from the lower end of the hanging part,
The surplus portion of the mesh yarn is covered with a rubber material on its surface, and a rubber material integrated with the rubber material enters into the gap of the mesh yarn,
2. The ball-proof net according to claim 1, wherein a surface of the hanging net is not covered with the rubber material, and the rubber material does not enter inside. A hanging part extending so as to hang down to the floor substantially vertically when installed indoors;
A surplus part further extending from the lower end of the hanging part,
The net of the surplus part and the net of the hanging part within a predetermined range from the boundary with the surplus part are covered with a rubber material, and a rubber material integrated with the rubber material is It enters into the gap of the mesh thread,
2. The ball-proof net according to claim 1, wherein a surface of the drooping mesh yarn in another portion is not covered with the rubber material, and the rubber material does not enter inside. .   The ball-proof net according to any one of claims 1 to 3, wherein the mesh yarn is formed of a polyester fiber.   5. The mesh yarn according to claim 1, wherein when the mesh yarn is pressed in a direction perpendicular to the mesh yarn, the longitudinal length of the cross section can be elastically deformed into a shape longer by 30% or more than the lateral length. The ball-proof net according to any one of the above.   The ball-proof net according to any one of claims 1 to 5, characterized in that the mesh yarn can be bent and deformed at a speed higher than an elastic deformation speed of the rubber material.   7. The ball-proof net according to claim 1, wherein the mesh yarn is formed of polyester fibers thinner than 1000 denier / 18 pieces / 40 mm.   The ball-proof net according to any one of claims 1 to 7, wherein the ball-proof net is a knotless net.   A method for manufacturing a ball-proof net for hanging used indoors,
  Impregnating and covering the rubber thread with liquid rubber;
  Drying the mesh thread impregnated with the liquid rubber, and
  The mesh yarn has 1000 fibers / mm. ² A manufacturing method characterized by having the above density.   A method for manufacturing a ball-proof net for hanging used indoors,
  A step of partially cutting the lower part of the ball-proof net already installed indoors;
  Adding a net formed of a mesh thread impregnated / coated with liquid rubber to the lower part of the ball-proof net, and
  The mesh yarn has 1000 fibers / mm. ² A manufacturing method characterized by having the above density.

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