JPH0681569U - Sports net - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a sports net with improved shock absorption capacity without being stretched. [Structure] Net 1 used during competitions in various sports
8, the mesh E is formed on the net 18 formed by using the linear member 20, and the shape of the mesh E is hexagonal. [Effect] Since the mesh shape is hexagonal, when a ball or the like collides with the sports net, the tensile force of the linear member caused by the collision is simply linear in the vertical and horizontal directions as in the conventional case. Instead of propagating, it propagates along the linear members on each side of the hexagon, so that the tensile force of the linear members can be adjusted to 6 around the ball before reaching the support frame member or the base frame.
It is absorbed or reduced by the linear members on each side of the prism.
Therefore, it is possible to remarkably improve the impact absorbing ability without slackening and stretching the sports net.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sports net used for goal nets for soccer, handball, hockey and the like.

[0002]

[Prior art]

 Examples of conventional sports nets include goal nets shown in FIGS. 7 to 11. FIG. 7 is a view showing the goal 3. In the figure, reference numerals 4 to 7 constitute a goal frame as a whole, 4 is its pole, 5 is a crossbar, 6 is a base frame, and 7 is a support frame member. . Then, a quadrangle A surrounded by the pole 4, the base frame 6 and the support frame members 7 on the two sides, a quadrangle B surrounded by the crossbar 5 and the support frame members 7 on the three sides, and the base frames 6 and 3 A goal net 8 is stretched and provided on a quadrangle C surrounded by the side supporting frame members 7.

As shown in FIG. 8, a goal net 8 is generally used in which a mesh D having a thickness of 1 mm to 6 mm is used to form a mesh D in a square shape. As shown in FIG. 9, the warp yarns 10a and the weft yarns 10b of the mesh yarn 10 are tightly knotted (knotted) so as to form a knot 10c, and the size and shape of the mesh D are kept constant. Other conventional goal nets include knotless ones and net yarns formed by Russell knitting, but they all have a common point in that they have a square mesh shape.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional sports net 8, since the mesh D is formed in a square shape, when the shot ball 9 collides with the goal net 8 as shown in FIG. The longitudinal tensile force Ta of the generated mesh yarn 10 propagates linearly in the longitudinal direction along the warp yarn 10a and immediately reaches the base frame 6 and the support frame member 7, while the transverse tensile force Tb is increased. It propagates linearly in the transverse direction along the weft thread 10b. For this reason, as shown in FIG. 11, the warp yarn 10a of the net yarn 10 (same as the weft yarn 10b) is easily deformed into a V shape to charge an elastic repulsive force, and the repulsive force causes the ball 9 to move. It is bounced back and is instantly flipped out of goal 3. Therefore, during the competition, it is very difficult for the referee to judge whether the ball 9 was repelled by the goal net 8 or hit by the pole 4 of the goal box and repelled, which may hinder the continuation of the competition. There is a problem of frequent occurrence.

In order to solve such a problem, there is also a method in which the goal net 8 is slightly slackened and stretched to absorb the impact when the ball 9 collides. The goal net 8 hangs down, and the height of the goal 3 is felt to be low, which makes it difficult to play the game. In order to solve such problems, it is an object of the present invention to provide a sports net which has an improved impact absorbing ability without being stretched.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is a net used in various sports competitions, in which a mesh is formed on a net formed by using linear members, and the mesh has a hexagonal shape. Is configured.

[0007]

[Action]

 According to the sports net having such a structure, the mesh shape is hexagonal. Therefore, when a ball or the like collides with the sports net, the tensile force of the linear member generated by the collision is different from the conventional one. Before the tensile force of the linear member reaches the supporting frame member or the base frame, it propagates along the linear member on each side of the hexagon, not just in the vertical and horizontal directions. In addition, it is absorbed or reduced by the linear member on each side of the hexagon around the ball. Therefore, it is possible to remarkably improve the impact absorbing ability without slackening and stretching the sports net.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 are views showing an embodiment of a sports net according to the present invention. FIG. 1 is an enlarged view showing a goal net 18 stretched over the goal frames 4 to 7 of the goal 3 shown in FIG. 7 instead of the goal net 8. As the net yarn 20 (filament member) used for the goal net 18, a Russell knitted net yarn 20 as shown in FIG. 2 is used. The Russell knitting net yarn 20 is basically composed of a series of chain yarns 21 and two types of insertion yarns 22 and 23. That is, the chain yarn 21 is knitted as shown in FIG. 3, and the insertion yarns 22 and 23 are knitted into the chain yarn 21 as shown in FIG. 4 to form the Russell knitted mesh yarn 20. Has been done.

The chain yarn 21 and the insertion yarns 22 and 23 that compose the mesh yarn 20 are made of various synthetic fiber materials such as polyethylene type, polyester type, nylon type, vinylon type and aramid type. The thickness of the net yarn 20 is 1 mm to 10 mm.

The Russell knitting net yarn 20 as described above basically comprises one net yarn 20 composed of a set of chain yarns 21 and insertion yarns 22 and 23 as shown in FIG. During the Russell knitting process, two such single net yarns 20 are combined to form a net yarn 20 having a thickness of two (F portion in FIG. 2), or vice versa. It is possible to divide the net yarn 20 having a thickness of 2 into two and branch each to the above-mentioned one net yarn 20, or to knit while repeating such a process alternately.

From the above, as shown in FIG. 1, one net yarn 20a of the net yarns 20 has a predetermined length (a length of one side of a hexagon) to one adjacent net yarn 20b. ), The net yarn 20d has a thickness of two, and the net yarn 20a is separated from the net yarn 20b from the end portion (the lower end portion in the figure) of the length of the net yarn 20d having the thickness of the two yarns. Then, the net yarn 20a becomes the thickness of the original one again, and after being spaced by the predetermined length, this time, the net yarn 20c and the other adjacent net yarn 20c are combined with the predetermined length to form two yarns. The net yarn 20e has a thickness of one minute. Then, the net yarn 20a is separated from the net yarn 20c from the end portion of the length of the net yarn 20e having the thickness of the two yarns, and the net yarn 20a becomes the original thickness of one yarn again. Then, after a gap of the predetermined length is made again, the net yarn 20b having the thickness of two yarns is combined with the adjacent net yarn 20b again. As shown in FIG. 1, the net yarn having the thickness of one yarn is alternately combined with the net yarn having the thickness of one yarn adjacent to each other to obtain the thickness of two yarns. Such a mesh E can form a hexagonal goal net 18.

Therefore, as shown in FIG. 1, in the hexagonal mesh E, the thickness of the mesh yarn 20d on two sides (extending in the longitudinal direction) facing each other is different from the thickness of the remaining four sides (diagonal). The thickness of the net yarns 20a and 20c (which extend in the direction) is halved.

When the ball 9 collides with the goal net 18 having the hexagonal mesh E in this way, as shown in FIG. 5, the tensile force Tc of the mesh 20 generated by the collision is in six directions. In a radial direction, each tensile force Tc becomes smaller in the bifurcated portion, and further propagates in the bifurcated portion, and becomes smaller in the bifurcated portion. As described above, the tensile force Tc does not propagate straight in the longitudinal direction and the lateral direction as in the conventional case but propagates along the mesh yarn 20 on each side of each hexagon. Before reaching the base frame 6 and the support frame member 7 in FIG. 7, the net yarn 20 on each side of the hexagon around the ball 9 is absorbed and reduced.

Therefore, as shown in FIG. 6, the net yarn 20 of the goal net 18 with which the ball 9 collides can be deformed along the shape of the ball 9 only in the peripheral portion of the ball 9 to absorb the impact. Since it is possible, the ball 9 is not thrown out of the goal 3 but falls into the ball 3. Therefore, the impact absorbing ability of the goal net 18 can be remarkably improved without slackening and stretching the goal net 18. Then, the referee can easily and surely determine whether or not the ball 9 has entered the goal 3, and can prevent the game from being interrupted midway.

In the above embodiment, two insertion yarns 22 and 23 are used for one net yarn 20 of the Russell knitting, but the Russell knitting of the net yarn 20 is possible even if only one insertion yarn is used. Is. Although the net yarn 20 is formed by Russell knitting in the above embodiment, a net yarn formed by a method different from the Russell knitting may be used if the net of the net is hexagonal. As such another method, for example, a method of punching a hexagonal hole in the sheet member with a press can be considered, but any other method may be used as long as the mesh of the net is hexagonal.

As shown in FIG. 1, in the hexagonal mesh E, the thickness of the net yarns 20d on the two sides facing each other is 2 minutes compared with the thickness of the net yarns 20a, 20c on the remaining four sides. However, the thickness of each side of the hexagon of the net yarn 20 does not need to be in such a ratio, and may be in a different ratio, or all of them have the same thickness. You can do it.

Further, in the above-mentioned embodiment, the description has been made of the case where the sports net is stretched around the goal 3 such as soccer, handball and hockey, but the sports net according to the present invention has no goal such as tennis, volleyball and table tennis. It may be used as a net for competition. In this case, the repulsive force of the net can prevent the ball from being flung far away, so the time and effort required to pick up the ball far away can be reduced, and the resumption of the competition can be expedited accordingly. You can

[0018]

[Effect of device]

 As described above, according to the present invention, the tensile force of the linear member generated by the collision of the ball with the sports net propagates along the linear member on each side of the hexagon, so Before the tensile force of the member reaches the support frame member or the base frame, it is absorbed or reduced by the linear member on each side of the hexagon of the ball periphery. For this reason, it is possible to remarkably improve the impact absorbing ability without slackening the sports net. Further, by using the net yarn of Russell knitting for the linear member, it is possible to improve the shock absorbing performance by also assisting the elasticity of the chain yarn used for the Russell knitting.

Therefore, the referee can easily and surely determine whether or not the ball 9 has entered the goal 3, and it is possible to prevent the game from being interrupted midway. Furthermore, by improving the impact absorption performance of the goal net 18, the unreasonable tensile force between the goal frame of the goal 3 and the goal net 18 and the wear between the goal frame and the goal net 18 are reduced, The durability of the goal net 18 can also be improved.

[Brief description of drawings]

FIG. 1 is an enlarged view showing an embodiment of a sports net according to the present invention.

FIG. 2 is a partially enlarged view showing a state F in which two net yarns 20 of Russell knitting adjacent to each other in the net yarn 20 shown in FIG.

FIG. 3 is a detailed view of a chain yarn 21 which constitutes a part of the net yarn 20 for one Russell knitting shown in FIG.

FIG. 4 is a detailed view showing a state in which the insertion yarns 22 and 23 are woven by Russell knitting into the chain yarn 21 shown in FIG.

FIG. 5 is a rear view of the goal net 18 showing a state in which the tensile force Tc of the net yarn 20 due to the impact of the ball 9 colliding with the goal net 18 is dispersed and propagated.

FIG. 6 is a goal 3 showing a deformed state of the net yarn 20 when the impact of the colliding ball 9 is absorbed by the goal net 18.
FIG.

FIG. 7 is a perspective view of a goal 3 used for various sports.

8 is a partially enlarged view of a conventional goal net 8 stretched over the goal 3 shown in FIG.

9 is a warp yarn 1 of the net yarn 10 of the goal net 8 shown in FIG.
It is a partially expanded view which shows the knot 10c of the intersection of 0a and the weft 10b.

10 is a rear view of the goal net 8 showing the propagation directions of the tensile forces Ta and Tb of the net yarn 10 due to the impact when the ball 9 collides with the goal net 8 shown in FIG.

11 is a side view of the goal 3 showing a deformed state of the net yarn 10a when the ball 9 collides with the goal net 8 shown in FIG.

[Explanation of symbols]

 3 Goal 9 Ball 18 Goal Net 20, 20a to 20f Net Thread 21 Chain Thread 22, 23 Insert Thread E Net Tc Tensile Force

Claims (2)

[Scope of utility model registration request] 1. A net used for various sports competitions, characterized in that a net is formed by using linear members, and the net is formed into a hexagonal shape. . 2. The net is produced by using a mesh yarn knitted using yarns of various fibers, and in the hexagonal mesh,
For the thickness of the net yarn on the two sides facing each other, the remaining 4
The net for sports according to claim 1, wherein the thickness of the net yarn on one side is halved.