JP2009006052A - Ball - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ball including a skin panel covering the outer surface of a spherical body, relaxing a shock to a user without any obstacle to a ball game, dispensing with an adhesive material for non-slip use, and allowing a user easy grasp to attain favorable feeling of use while it has an outside diameter conformable to the standard. <P>SOLUTION: The peripheral edge parts of a first skin panel 3 and a second skin panel 4 are adhesively bonded to each other. A first support member 5 formed of an elastic member is disposed between the first skin panel 3 and the spherical body 2, and the first support member 5 is adhesively bonded to the back of the skin panel 3 and the outer surface of the spherical body 2. A similar second support member 6 is provided between the second skin panel 4 and the spherical body 2. An air layer A is provided between the outer surface of the spherical body 2 and the first and second skin panels 3, 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ball used in various ball games, and particularly belongs to the technical field of a structure in which a sphere is covered with a skin member.

Conventionally, as this type of ball, a ball having a rubber sphere into which compressed air is injected and a skin member provided so as to cover the entire outer surface of the sphere is known (for example, a patent) Reference 1). The skin member is in a state of being in close contact with the outer surface of a sphere expanded by injecting compressed air, and the sphere is protected by the skin member.
JP-A-8-1555055

  However, in the ball of Patent Document 1, since the sphere is tightly stretched by the compressed air, the surface of the skin member that is in close contact with the outer surface of the sphere becomes hard. When a ball with a hard surface is used for ball games such as soccer balls, handballs, and dodge balls, the impact on the user is strong and painful, for example, when the ball hits the user's body. May be given. On the other hand, it is conceivable to soften the ball by reducing the use pressure, but this makes it difficult to bounce and hinders the ball game.

  In addition, when the ball is used for a handball, the surface of the ball is hard and slippery when the user grips the ball with his / her hand. Need arises. If an adhesive is applied, the adhesive adheres to the floor or equipment of the ball game field and gets dirty, and when the ball is bound to the floor, it becomes an unnatural bounce. Therefore, it is conceivable to add a uniform adhesive function to the surface of the ball, to reduce the outer diameter so that it can be easily grasped, or to allow the finger to bite when the ball is held under reduced pressure. However, when an adhesive film is added, it is difficult to ensure the durability of the adhesive force, and if the outer diameter of the ball is reduced, it will become incompatible with the standards of ball games, etc. As described above, there is a problem that the ball game is disturbed.

  The present invention has been made in view of such a point, and an object of the present invention is to reduce the impact on the user without affecting the ball game in a ball having a skin member covering the outer surface of the sphere. In addition, the adhesive film on the surface is not required and the outer diameter conforms to the standard, and the user can easily grip and obtain a good feeling of use.

  In order to achieve the above object, in the invention of claim 1, in a ball comprising a sphere into which a compressed gas is injected and a skin member arranged so as to cover the outer surface of the sphere, The support member for elastically supporting the skin member is provided in a state where at least a part of the skin member is separated from the outer surface of the sphere.

  According to this configuration, since at least a part of the skin member is separated from the outer surface of the sphere, the surface of the skin member does not become hard even if the sphere is stretched hard, and the skin member is elastic to the outer surface of the sphere. Since it is only supported, it is easily deformed when it receives external force. This makes it possible to soften the surface of the ball when the pressure is appropriate for various ball games without reducing the use pressure of the ball. When this ball is bounced, an appropriate bounce amount is obtained by elastically deforming the support member.

  According to a second aspect of the present invention, in the first aspect of the present invention, the entire skin member is supported by the support member in a state of being separated from the outer surface of the sphere.

  According to this configuration, the entire surface of the ball can be softened.

  In the invention of claim 3, in the invention of claim 1 or 2, an air layer is provided between the sphere and the skin member.

  According to this configuration, a natural bounce is obtained by the air layer.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the skin member is made of a stretch material.

  According to this configuration, the surface of the ball is further softened because the skin member is easily extended when receiving an external force.

  In the invention of claim 5, in any one of claims 1 to 4, the peripheral region of the skin member is supported by the support member.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, a foam material layer is provided between the sphere and the skin member.

  According to this configuration, it is possible to adjust the bound amount and the like depending on the physical properties of the foam material layer.

  The invention according to claim 7 is configured to be used for a handball game in any one of claims 1 to 6.

  According to the first aspect of the present invention, at least a part of the skin member is separated from the outer surface of the sphere, and the skin member is elastically supported on the outer surface of the sphere. The surface can be softened without any problems. Thereby, when the ball hits the user, the impact is alleviated and the pain can be relieved. Furthermore, when grasping the ball, the finger can easily bite into the surface of the ball. Therefore, the user can easily and surely grip the ball without adding an adhesive film and having an outer diameter conforming to the standard, and the feeling of use can be improved.

  According to the invention of claim 2, by separating the entire skin member from the outer surface of the sphere, the entire surface of the ball can be softened and the feeling of use can be further improved.

  According to the invention of claim 3, by providing the air layer between the sphere and the skin member, natural bounce can be obtained, and the difference in feeling of use with the conventional product can be reduced.

  According to the invention of claim 4, since the skin member is made of a stretch material, the surface of the ball can be further softened, the pain when hitting the user can be further alleviated, and easy to grasp. can do.

  According to the invention of claim 6, since the foam material layer is provided between the outer skin member of the sphere, adjustment of the bound amount and the like can be facilitated.

  According to the seventh aspect of the present invention, in a handball game in which a user often holds with one hand, the effect of being easy to grip due to the soft surface of the present invention can be made remarkable.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows the appearance of a ball 1 according to an embodiment of the present invention. The ball 1 is used in handball competitions, and the outer diameter, weight, etc. are set to values determined by international standards. The ball 1 includes a sphere 2 into which compressed air as compressed gas is injected, a plurality of regular hexagonal first skin panels 3 and a plurality of regular pentagonal second skins arranged so as to cover the outer surface of the sphere 2. A panel 4 and first and second support members 5 and 6 that elastically support the first and second skin panels 3 and 4 in a state of being separated from the outer surface of the sphere 2 are provided. The first and second skin panels 3 and 4 are skin members of the present invention.

  The sphere 2 is made of an elastic material having air impermeability such as natural latex rubber or butyl rubber. A reinforcing layer may be provided separately from the sphere 2 by wrapping cotton cloth, nylon thread or the like around the surface of the sphere 2. The sphere 2 is provided with an air valve (not shown) for injecting compressed air.

  The first and second skin panels 3, 4 are disposed on the artificial leather 10 that is the surface portion of the ball 1, the cushion layer 11 disposed on the back surface of the artificial leather 10, and the back surface of the cushion layer 11. It is comprised with the cloth material layer 12. FIG. The artificial leather 10 and the cushion layer 11, and the cushion layer 11 and the cloth material layer 12 are bonded and integrated with each other by latex rubber glue or the like.

  The artificial leather 10 is artificially made by imitating natural leather using a resin material such as polyurethane or polyvinyl alcohol as a material, and is stretched by a tensile force using the properties of the resin material. When the tensile force is removed, it is shrunk and restored to its original shape.

  The cushion layer 11 is made of rubber such as EPDM, natural rubber, chloroprene rubber, or synthetic resin such as urethane, polyethylene, polystyrene, or vinyl acetate, and has elasticity. The cloth material layer 12 is configured by laminating one or a plurality of cloth materials. The cloth material constituting the cloth material layer 12 is a cotton cloth or a mixed cloth of cotton and polyester. The cushion layer 11 and the cloth material layer 12 are processed so as to expand and contract similarly to the artificial leather 10. That is, each of the first and second skin panels 3 and 4 is made of a stretchable material that can be stretched and contracted. The first and second skin panels 3 and 4 may be provided with a reinforcing layer made of a high-strength film such as a polyester film, a polyvinyl chloride film, a polyethylene film, or a polypropylene film.

  A bent portion 3a that is bent inward of the ball 1 is formed at the edge portion of the first skin panel 3, and a bent portion 4a is similarly formed in the second skin panel 4. . Of the first and second skin panels 3 and 4, the bent portions 3 a and 4 a of the adjacent skin panels 3 and 4 are bonded together by an adhesive and integrated. Thus, the entire outer surface of the sphere 2 is covered with the first and second skin panels 3 and 4.

  The first and second support members 5 and 6 are formed by molding an elastic member such as polyethylene foam so as to have a substantially rectangular cross section. As shown in FIG. 1, the first support member 5 is arranged so as to form a regular hexagonal frame similar to the outer shape of the first skin panel 3 in plan view. As shown in FIG. 2, the end surface of the first support member 5 on the first skin panel 3 side is bonded to the inner side of the bent portion 3 a in the peripheral area of the back surface of the skin panel 3. The end surface of the first support member 5 on the sphere 2 side is bonded to the outer surface of the sphere 2. That is, the peripheral area of the first skin panel 3 is supported by the first support member 5. In this state, the central region of the first skin panel 3 is separated from the outer surface of the sphere 2 in the radial direction of the ball 1 by a dimension corresponding to the shape of the first support member 5. The bent portion 3 a of the first skin panel 3 is also bonded to the first support member 5.

  The bent portion 3 a of the first skin panel 3 is separated from the outer surface of the sphere 2 in the radial direction of the ball 1. Accordingly, the first skin panel 3 is not only in its central region but also in its entirety including the peripheral region away from the outer surface of the sphere 2. An air layer A is formed between the central region of the first skin panel 3 and the sphere 2. Since the air layer A is partitioned from the inside of the sphere 2, the compressed air injected into the sphere 2 does not flow into the air layer A, and the air layer A has a lower pressure than the inside of the sphere 2. ing. The pressure inside the air layer A is substantially the same as the atmospheric pressure.

  As shown in FIG. 1, the second support member 6 is arranged so as to form a regular pentagonal frame similar to the outer shape of the second skin panel 4 in plan view. As shown in FIG. 2, the end surface on the second skin panel 4 side of the second support member 6 is inward of the bent portion 4 a in the peripheral area of the back surface of the second skin panel 4, similar to the first skin panel 3. It is glued. The end surface of the second support member 6 on the sphere 2 side is bonded to the outer surface of the sphere 2. Further, the bent portion 4 a of the second skin panel 4 is separated from the outer surface of the sphere 2 in the radial direction of the ball 1, and therefore the second skin panel 4 is entirely separated from the outer surface of the sphere 2. An air layer A is also formed between the second skin panel 4 and the sphere 2.

  When compressed air is injected into the sphere 2 of the ball 1 configured as described above, the sphere 2 is tightly stretched. At this time, the first and second skin panels 3 and 4 are separated from the outer surface of the sphere 2, and an air layer A in which low-pressure air exists between the skin panels 3 and 4 and the sphere 2 is provided. Even if the sphere 2 is stretched tightly, the surfaces of the skin panels 3 and 4 are not hardened. In addition, since the first and second skin panels 3 and 4 are elastically supported on the outer surface of the sphere 2, as shown in FIG. . Thereby, it is possible to soften the surface of the ball 1 even if the pressure is appropriate for the handball game without reducing the use pressure of the ball 1. When the ball 1 is bounced, an appropriate bounce amount is obtained by elastic deformation of the first and second support members 5 and 6.

  When the ball 1 is used, for example, it may hit the user, but since the surface of the ball 1 is soft as described above, the impact when the ball 1 hits is alleviated and the pain felt by the user is eased. Further, when the ball 1 is gripped, the finger can easily bite into the surface of the ball 1 and can be firmly and reliably gripped.

  As described above, according to the ball 1 according to this embodiment, the first and second skin panels 3 and 4 are separated from the outer surface of the sphere 2, and the skin panels 3 and 4 are placed on the outer surface of the sphere 2. Since it is elastically supported, the surface of the ball 1 can be softened without causing any trouble in the ball game by using the ball 1 as an appropriate working pressure. As a result, the pain when the ball hits the user can be relieved, and without adding an adhesive or adhesive film such as pine resin as in the conventional product, and with an outer diameter conforming to the standard, The user can easily and surely hold the ball 1 to improve the feeling of use.

  Thus, since the user can easily grasp the ball 1, the gripping property of the ball 1 is improved, and the direction at the time of throwing can be accurately controlled. This makes it possible to make full use of advanced technology.

  Further, by separating the first and second skin panels 3 and 4 from the outer surface of the sphere 2, the entire surface of the ball 1 can be softened and the usability can be further improved.

  Further, by providing the air layer A between the sphere 2 and the first and second skin panels 3 and 4, a natural bounce can be obtained, and the difference in feeling of use with the conventional product can be reduced. it can.

  In addition, since the first and second skin panels 3 and 4 are made of a stretch material, the skin panels 3 and 4 that have received external force easily stretch, thereby further reducing pain when hitting the user. It can be softened and easy to grasp.

  In addition, since the ball 1 of the present invention is used for handball competitions in which the user has many opportunities to grip with one hand, the effect of being easy to grip due to the soft surface can be made remarkable.

  Further, since the first and second skin panels 3 and 4 and the sphere 2 are separated, for example, when a plant thorn is stuck in the ball 1, it is difficult to reach the sphere 2 and air leakage from the sphere 2 is suppressed. You can also

  In the above embodiment, the bent portions 3a, 4a of the first and second skin panels 3, 4 are separated from the outer surface of the sphere 2, but not limited to this, as in Modification 1 shown in FIG. The bent portions 3a and 4a may be extended and bonded until they contact the outer surface of the sphere 2. Thereby, the skin panels 3 and 4 can be firmly affixed to the sphere 2, and the durability of the ball 1 can be improved.

  In the above embodiment, the bent portions 3a and 4a of the adjacent skin panels 3 and 4 are bonded. However, the present invention is not limited thereto, and the yarn 20 is used as in Modification 2 shown in FIG. It may be sewn together. Thereby, the 1st and 2nd skin panels 3 and 4 can be integrated firmly. As the yarn 20, a high-shrinkage polyester fiber that shrinks by heating, for example, a self-shrinkable fiber such as Soku Latex (registered trademark, manufactured by Teijin Ltd.) can be used. In this case, both skin panels 3 and 4 are sewn together. By subsequently heating the thread 20, the seam can be strongly tightened. Further, the bent portions 3 a and 4 a of the adjacent skin panels 3 and 4 may be bonded and stitched together with the thread 20.

  Further, as in Modification 3 shown in FIG. 6, the reinforcing layer 30 may be provided only in a portion corresponding to the inside of the first support member 5 in the central region of the first skin panel 3. The reinforcing layer 30 is made of a cloth material such as cotton cloth. Similarly, the second skin panel 4 is provided with a reinforcing layer 30. Thus, the 1st and 2nd skin which the 1st and 2nd support members 5 and 6 adhere | attached and were reinforced by providing the reinforcement layer 30 in the center area | region of the 1st and 2nd skin panels 3 and 4 respectively. The strength of the peripheral region of the panel and the strength of the other central region can be balanced to sufficiently ensure the strength of the entire skin panel 3, 4, and the durability of the ball 1 can be improved.

  Further, as in Modification 4 shown in FIG. 7, a foam material layer 40 made of an elastic member such as polyurethane foam is provided between the first and second skin panels 3 and 4 and the outer surface of the sphere 2. You may make it provide. In this case, the softness of the surface of the ball 1 can be easily adjusted, and the bounce amount and the like can be easily adjusted by the physical properties such as hardness and repulsive force of the foam material layer 40. Although not shown, a small bag-shaped member filled with air may be provided between the first and second skin panels 3 and 4 and the sphere 2. Moreover, in the modification 4, you may make it provide both an air layer and a foam material layer between the 1st and 2nd skin panels 3 and 4 and the spherical body 2. FIG. Moreover, you may make it provide a foam material layer and an elastic material layer only in one part between the 1st and 2nd skin panels 3 and 4 and the spherical body 2. FIG.

  Further, as in Modification 5 shown in FIG. 8, the first and second support members 5, 6 are arranged between the bent portions 3 a, 4 a of the first and second skin panels 3, 4 and the sphere 2, respectively. You may do it. In this modification, the end of the bent portion 3 a of the first skin panel 3 is bonded to the first support member 5, and the end of the bent portion 4 a of the second skin panel 4 is bonded to the second support member 6. ing. Foam material layers 40 are respectively provided on the back surfaces of the first and second skin panels 3 and 4. The thickness of the foam material layer 40 is set to be substantially the same as the folding height of the bent portions 3 a and 4 a, and an air layer A is provided between the surface of the sphere 2 and the foam material layer 40. A part of the foam material layer 40 and a part of the first and second support members 5 and 6 are overlapped, and the overlapped part is bonded. In the fifth modification, a foam material layer may be provided between the first and second skin panels 3 and 4 and the sphere 2.

  Further, the shape of the skin panels 3 and 4 is not limited to a regular hexagonal shape or a regular pentagonal shape, and can be set to an arbitrary shape.

  Further, the structure of the skin panels 3 and 4 is not limited to the three-layer structure, and natural leather may be used instead of the artificial leather.

  Moreover, although the case where this invention was applied to the ball 1 for handball games was demonstrated in the said embodiment, this invention can also be applied to the ball used for ball games, such as a soccer ball and a dodge ball, for example. When the ball 1 according to the present invention is used for a soccer ball game, for example, the surface shape of the ball 1 is likely to change so as to correspond to the shape of a foot when kicking a ball. Easy to use and excellent in competition performance.

  Further, the reinforcing layer 30 of the first and second skin panels 3 and 4 may be omitted. When the reinforcing layer 30 is provided, the elongation (softness) of the first and second skin panels 3 and 4 is lost.

  Further, when a reinforcing layer that is in close contact with the surface of the sphere 2 is separately provided and no reinforcing layer is provided on the first and second skin panels 3 and 4, the surface of the sphere 2 becomes hard, and the first and second skin panels The surface of 3 and 4 becomes soft.

  In addition, when there is no reinforcing layer in close contact with the surface of the sphere 2 and the first and second skin panels 3 and 4 are provided with a reinforcing layer, the surface of the sphere 2 becomes soft, and the first and second skin panels 3 and 3 The surface of 4 becomes hard.

  In the above embodiment, air is injected into the sphere 2. However, the present invention is not limited to this, and the sphere 2 may be solid. An example is a solid sphere made of sponge, which has the same ball characteristics (rebound etc.) as the hollow ball as described above, but is not limited to sponge, but is made of rubber or various kinds It may be made of resin.

  As described above, the ball according to the present invention can be used in, for example, a handball game where there are many opportunities to grab the ball with a hand.

It is a front view of a ball concerning an embodiment of the present invention. It is the II-II sectional view taken on the line of FIG. FIG. 3 is a view corresponding to FIG. 2 of a ball subjected to an external force. FIG. 3 is a diagram corresponding to FIG. FIG. 9 is a view corresponding to FIG. FIG. 10 is a view corresponding to FIG. FIG. 9 is a view corresponding to FIG. FIG. 10 is a diagram corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ball 2 Sphere 3 1st skin panel 3a Bending part 4 2nd skin panel 4a Bending part 5 1st support member 6 2nd support member 20 Thread 30 Reinforcement layer 40 Foaming material layer A Air layer

Claims (7)

In a ball comprising a sphere and a skin member arranged to cover the outer surface of the sphere,
A ball characterized in that a support member is provided on the outer surface of the sphere to elastically support the skin member in a state where at least a part of the skin member is separated from the outer surface of the sphere. The ball according to claim 1,
The outer skin member is supported by the support member in a state where the entire skin member is separated from the outer surface of the sphere. The ball according to claim 1 or 2,
A ball characterized in that an air layer is provided between the sphere and the skin member. In the ball according to any one of claims 1 to 3,
A skin characterized in that the skin member is made of a stretch material. In the ball according to any one of claims 1 to 4,
A ball characterized in that a peripheral region of an outer skin member is supported by a support member. The ball according to any one of claims 1 to 5,
A ball characterized in that a foam layer is provided between the sphere and the skin member. In the ball according to any one of claims 1 to 6,
A ball that is used in handball competitions.

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