JP2013141513A - Transparent ball for ball game - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a surface strength with respect to impact from the outside uniform within an overall surface while making the center of a transparent ball for a ball game easily visible from the outside.SOLUTION: A transparent ball 10 for a ball game includes: a hollow top layer member 12 having transparency; a branch structure tube 14 having transparency, accommodated in the inner circumferential side space of the top layer member 12, and divided into a plurality of chambers 16; and a center sphere 20 provided in the vicinity of the center and visible from the outside. Furthermore, the center sphere 20 is encapsulated in a spherical space 18 formed at a center side with respect to the branch structure tube 14 and is colored.

Description

  The present invention relates to a ball game transparent ball, and more particularly to a ball game transparent ball suitable for practicing a ball game to make a user aware of the center of the ball.

  Conventionally, a transparent ball for ball games suitable for ball game practice is known (see, for example, Patent Document 1). This transparent ball for ball game includes a hollow surface layer member made of a transparent material, and a central ball visible from the outside provided in the vicinity of the center of the inner peripheral space of the surface layer member. The central sphere is connected to the other end of the central sphere support having one end fixed to the inner wall surface of the surface layer member, and is supported by the central support.

Japanese Patent Laid-Open No. 9-24128

  However, in the structure of the transparent ball for ball game described in Patent Document 1 described above, the center support that supports the center sphere on the surface layer member is provided in the inner peripheral space of the surface layer member having transparency. The structure of the central support is a linear body located on the central axis of the ball, and is made of metal or synthetic resin, and 2 to 6 linear bodies forming the central support are provided. The central sphere and the surface layer member are connected at 2 to 6 locations. For this reason, in the above-described ball structure described in Patent Document 1, it is difficult for the user to visually recognize the center of the ball from the outside due to the presence of the structure of the center support in the inner circumferential space of the surface layer member. At the same time, the surface strength against impact from the outside may be non-uniform throughout the entire surface, which may impair impact stability.

  The present invention has been made in view of the above points, and provides a ball game transparent ball capable of making the surface strength against an external impact uniform throughout the entire surface while making it easy to visually recognize the center of the ball from the outside. The purpose is to provide.

  The above-described object is to provide a transparent hollow surface layer member, a transparent compartment chamber tube that is accommodated in the inner circumferential space of the surface layer member and divided into a plurality of chambers, and an external portion provided near the center. And a transparent ball for ball games comprising a central body visible from the center.

  According to the present invention, the surface strength against external impact can be made uniform throughout the entire surface while making it easy to visually recognize the center of the ball from the outside.

1 is an overall external view of a transparent ball for ball games that is a first embodiment of the present invention. It is a figure showing the principal part shape of the tube which the transparent ball for ball games of a present Example has. It is an exploded view at the time of cut | disconnecting the transparent ball for ball games of a present Example in a predetermined location. It is a figure showing the whole shape of the tube which the transparent ball for ball games of a present Example has. It is the figure at the time of seeing the tube which the transparent ball for ball games of a present Example has from a ball center. It is a front view in case the central sphere which the transparent ball for ball games of a present Example has is comprised with a rubber tube. It is a figure showing the principal part shape of the tube which the transparent ball for ball games which is 2nd Example of this invention has.

  Hereinafter, specific embodiments of a transparent ball for ball games according to the present invention will be described with reference to the drawings.

  FIG. 1 is an overall external view of a transparent ball 10 for ball games that is a first embodiment of the present invention. FIG. 2 is a diagram showing the shape of the main part of the tube of the transparent ball 10 for ball game of the present embodiment. FIG. 3 shows an exploded view when the transparent ball 10 for ball game of the present embodiment is cut at a predetermined location. FIG. 3 shows a state in which one chamber 16 is disassembled from a state in which only three chambers 16 of the tube 14 described later are combined. FIG. 4 is a diagram showing the overall shape of the tube of the transparent ball 10 for ball games of this embodiment. 4A is a front view, and FIG. 4B is a tube shown in FIG. 4A. The tube shown in FIG. 4A is rotated 60 ° counterclockwise around an axis extending vertically in the figure. 4 (c) shows a front view when the tube shown in FIG. 4 (b) is rotated 60 ° counterclockwise around an axis extending vertically in the figure. FIG. 4 (d) shows a top view when the tube shown in FIG. 4 (A) is viewed from above.

  The transparent ball 10 for ball games of the present embodiment is a spherical ball applied to, for example, a soccer ball, basketball, volleyball, tennis ball, handball, baseball, rugby ball, play ball used when children play, and the like. is there. As shown in FIG. 1, the ball game transparent ball 10 includes a hollow surface layer member 12. The surface layer member 12 is composed of a skin panel that is exposed to the outside, and a reinforcing layer that is bonded and fixed to the back surface of the skin panel and reinforces the skin panel. The surface layer member 12 has a uniform thickness over the entire surface of the sphere. The surface layer member 12 is a hollow molded body formed of a transparent material (for example, a synthetic resin such as a vinyl chloride resin). In addition, as for the surface layer member 12, it is desirable to use the raw material which gives a user the same feeling as a regular game ball. The surface layer member 12 may be formed by sewing a plurality of pieces in a plane.

  The transparent ball 10 for ball games also includes a tube 14 that is accommodated in the inner circumferential space of the surface member 12. The tube 14 is a hollow molded body that is formed of a transparent material (for example, a synthetic resin such as a vinyl chloride resin) and that can be filled with air. The tube 14 is preferably made of a material that gives the user the same feeling as a regular game ball. The tube 14 is a branch structure tube in which the chamber 16 filled with air is divided into a plurality (six in this embodiment). The tube 14 is formed so as to form a hollow space (a spherical space described later) on the center O side while being formed in a substantially spherical shape as a whole when the plurality of chambers 16 are appropriately combined.

  As shown in FIG. 2, each chamber 16 has an independent shape obtained by cutting a part of a sphere, and has the same shape. Each chamber 16, when filled with air, is in contact with the outer wall 16 a in contact with the inner peripheral wall surface of the surface layer member 12, the inner wall 16 b in contact with the outer wall surface of the central sphere described later, and the side wall of the adjacent chamber 16. It is a space surrounded by two side walls 16c. The outer wall 16a and the inner wall 16b are each formed in an arc shape. Each side wall 16c is formed in a planar shape.

  When each chamber 16 is filled with air, each chamber 16 has an outer diameter equivalent to the distance from the center O of the ball game transparent ball 10 to the inner peripheral wall surface of the surface layer member 12, and the ball game transparent ball 10 The inner diameter is approximately the same as the distance from the center O to the outer wall surface of a later-described central sphere. Each chamber 16 has a predetermined thickness in the radial direction. Each chamber 16 has a square outer shape when viewed from the center O. Each chamber 16 is adjacent to and surrounded by four chambers 16 on four side walls 16 c.

  When the tube 14 is filled with air, the six chambers 16 are appropriately arranged and combined to form a substantially spherical shape as a whole (see FIGS. 4A to 4D). In addition, when the six chambers 16 filled with air are appropriately arranged and combined, eight vertices where the constituent points of the three chambers 16 coincide with each other are formed on the outer periphery of the tube 14 (see FIG. 1 and FIG. 1). A point to H point shown in FIG. When the six chambers 16 filled with air are appropriately arranged and combined, a spherical space 18 is formed on the center O side with respect to the tube 14.

  The ball game transparent ball 10 further includes a central ball 20 provided in the vicinity of the center O. The central sphere 20 has a predetermined diameter that matches the diameter of the spherical space 18 described above. The central sphere 20 is surrounded by a tube 14 on the outer peripheral side of the outer wall surface, and is enclosed in a spherical space 18 formed on the center O side with respect to the tube 14. The central sphere 20 is supported with respect to the tube 14 by the outer wall surface contacting the inner wall 16 b of the chamber 16 of the tube 14. The ratio of the diameter of the central sphere 20 to the diameter of the ball ball transparent ball 10 as a whole is, for example, the size of a human iris (black eye) or pupil (for example, 2 to 8 mm) and the size of an eyeball (white eye) (for example, 24 mm). According to the ratio, it may be set to 1 to 4:12.

  The central sphere 20 is formed of a non-transparent material (for example, synthetic resin or plastic colored with blue, red, fluorescent color, etc.). The central sphere 20 may be a spherical rubber tube (hollow molded body) that can be filled with air separately from the tube 14 described above, and a plastic material such as a ping-pong ball, for example. It may be a hollow structure sphere formed by.

  FIG. 5 shows a view of the tube 14 of the transparent ball 10 for ball game according to the present embodiment when viewed from the center O. FIG. FIG. 6 shows a front view when the central ball 20 of the transparent ball for ball game 10 of the present embodiment is formed of a rubber tube.

  In this embodiment, the transparent ball 10 for ball games is provided with a single air hole 22 for injecting air from the outside or discharging air from the tube 14. The air hole 22 is opened in the surface layer member 12 and communicates with one chamber 16 of the tube 14. An air circulation hole 24 is provided in the side wall 16c of each chamber 16 of the tube 14 for circulating air. For each chamber 16, the air circulation hole 24 is formed on two side walls 16c adjacent to each other as shown in FIG. 5A, on two side walls 16c facing each other as shown in FIG. 5B, or in FIG. ) And provided on one side wall 16c.

  Each chamber 16 communicates with the chamber 16 with which the air hole 22 communicates via the air passage 24 except for the chamber 16 with which the air hole 22 communicates. That is, the air passage 24 communicates each chamber 16 with the chamber 16 through which the air hole 22 communicates. For this reason, in the transparent ball 10 for ball game, when air is injected from the outside through the air hole 22, all the chambers 16 of the tube 14 are filled with the air through the air circulation holes 24, so that the tube 14 The whole expands.

  In this embodiment, when the central sphere 20 is formed of a rubber tube, the central sphere 20 is provided with an air circulation hole 26 for circulating air, and the inner wall of one chamber 16 of the tube 14. An air circulation hole (not shown) for circulating air may be provided in 16b. The air circulation hole of the inner wall 16b of this one chamber 16 and the air circulation hole 26 of the central sphere 20 are communicated. In such a structure, when air is injected through the air hole 22 from the outside, the central sphere 20 is expanded by filling the central sphere 20 with air.

  In the ball game transparent ball 10 described above, the colored central sphere 20 is stored in the spherical space 18 on the center side with respect to the tube 14 before the tube 14 is filled with air. And the tube 14 accommodated in the inner peripheral side space of the surface layer member 12 is filled with air. When such air filling is performed, the respective chambers 16 of the tube 14 are inflated so that the side walls 16c thereof are in close contact with each other and the inner wall 16b is in contact with the outer wall surface of the central sphere 20 so that the tube 14 is The central sphere 20 is supported so as to surround the entire circumference of the central sphere 20 in the inner circumferential space. In this respect, the central sphere 20 is elastically supported by using the force that the tube 14 expands toward the center O side on the entire circumference of the central sphere 20.

  According to the structure of the transparent ball 10 for ball game, in order to support the central sphere 20 in the vicinity of the center O in the inner circumferential space of the surface layer member 12, in addition to the tube 14 having elasticity, it is connected to the central sphere 20 It is not necessary to provide a structure to be used. For this reason, according to the present embodiment, the surface strength against the external impact is not uneven in the entire surface due to the presence of the structure, and the surface strength can be uniformed in the entire surface. It is possible to ensure stability against the impact.

  Further, in the above-described transparent ball 10 for ball games, the only members provided on the entire circumference of the colored central sphere 20 are the surface layer member 12 and the tube 14 having transparency. There is no structure or the like for supporting the central sphere 20. For this reason, according to the present Example, it is possible to make it easy for a user to visually recognize the colored central sphere 20 from the outside.

  Therefore, according to the transparent ball 10 for ball game of the present embodiment, the surface strength against the impact from the outside can be made uniform in the entire surface while making it easy to visually recognize the center of the ball from the outside. For this reason, since the user can always be aware of the center of the ball, it is possible to provide a transparent ball for ball game suitable for ball game practice while giving the user the same feeling as a regular game ball.

  In the first embodiment, the tube 14 corresponds to the “compartment structure tube” described in the claims, and the central sphere 20 corresponds to the “center body” described in the claims. .

  In the first embodiment described above, a central sphere 20 as a structure is enclosed in the spherical space 18 on the center side with respect to the tube 14 having the compartment structure, and the central sphere 20 is colored so that the user can have the ball center. Easy to see from outside. On the other hand, in the second embodiment of the present invention, the center of the ball is easily seen from the outside without providing a central sphere as a colored structure in the spherical space 18 described above.

  FIG. 7 is a diagram showing the main part shape of the tube of the transparent ball for ball game of the present embodiment. In the present embodiment, the transparent ball for ball game does not include a central ball as a tangible structure, and includes a tube accommodated in the inner circumferential space of the surface layer member 12. This tube has the same shape and transparency as the tube 14 of the first embodiment described above, and is divided into a plurality of chambers 100 having the same shape.

  When each chamber 100 is filled with air, each of the chambers 100 has an arcuate outer wall 100a in contact with the inner peripheral wall surface of the surface layer member 12, an arcuate inner wall 100b that forms the spherical space 18, and an adjacent chamber 100 side wall. It is a space surrounded by four planar side walls 100c in contact with each other. Unlike the outer wall 100a and the side wall 100c facing the spherical space 18 of the tube, the inner wall 100b is colored so that the whole becomes non-transparent (for example, blue, red, fluorescent color, etc.).

  In such a ball game transparent ball, when the tube accommodated in the inner circumferential space of the surface member 12 is filled with air, the chambers 100 expand and their side walls 100c come into close contact with each other. When this state is realized, the inner wall 100b of each chamber 100 of the tube forms a spherical central body that is colored while forming the spherical space 18 on the center O side. That is, when the inner wall 100b of each chamber 100 is colored and all the chambers 100 are combined, a spherical central body visible from the outside is formed by the inner walls 100b of all the chambers 100.

  According to such a structure, unlike the structure of the first embodiment described above, it is sufficient to color the inner wall 100b of each chamber 100 of the tube in order for the user to visually recognize the center of the ball from the outside. It is not necessary to provide a central sphere that is colored as a tangible structure, and it is also unnecessary to provide a structure for supporting the central sphere. For this reason, according to the present embodiment, similarly to the structure of the first embodiment described above, the surface strength against impact from the outside is not uniform in the entire surface due to the existence of the structure for supporting the central sphere. It is possible to make the surface strength uniform within the entire surface, ensure stability against the impact, and visually recognize the colored central body from the outside. It is possible to make it easy.

  Therefore, even in the transparent ball for ball game of the present embodiment, the surface center against the external impact can be made uniform throughout the entire surface while making it easy to visually recognize the ball center from the outside. Therefore, it is possible to provide a transparent ball for ball game suitable for ball game practice while giving the user the same feeling as a regular game ball.

  Further, in this embodiment, the central ball as a tangible structure is not necessary for constructing the transparent ball for ball game, and the center side of the tube before filling the tube with air at the stage of manufacturing the transparent ball for ball game is not necessary. Since it is not necessary to store the central sphere in the spherical space 18 formed in the above, ball manufacturing can be realized with a simple configuration.

  In the second embodiment, a spherical central body that is formed by the inner wall 100b of each chamber 100 when all the chambers 100 filled with air are combined is visible from the outside. This corresponds to the “centrosome” described in the range.

  In the second embodiment, the inner wall 100b of each chamber 100 of the tube is directly colored to form a colored central body. However, the present invention is not limited to this. Instead, the panel mounted on the transparent inner wall 16b may be colored. That is, after providing a plate-like panel having a shape matching the inner wall 16b, the panel may be colored and the panel may be attached to the inner wall 16b. This panel may be made of resin.

  By the way, in the first and second embodiments described above, the tube 14 is divided into six chambers 16, but may be divided into four chambers, eight chambers, and twelve chambers. In such a modification, the shape of the chambers may be set so as to have the same shape according to the number of the chambers.

  In the first and second embodiments, the central sphere 20 or the inner wall 100b is colored. This coloring may be only one color, but a combination of a plurality of colors. In addition, the color may be changed according to the viewing angle of the user.

  Furthermore, in the first and second embodiments described above, a single air hole 22 is provided in order to fill the tube of the ball for transparent ball with air, but air is injected into each chamber of the tube. An air hole to be discharged may be provided, and a plurality of air holes may be provided in the surface layer member 12. In such a modification, an air passage for communicating between the chambers is not necessary.

10 Transparent ball for ball game 12 Surface layer member 14 Tube 16 Chamber 18 Spherical space 20 Central ball 22 Air hole 24 Air passage

The above-described object is to form a substantially spherical shape as a whole when a hollow surface layer member having transparency and a plurality of divided chambers housed in the inner space of the surface layer member are combined. A transparent compartment structure tube formed so as to constitute a spherical space, and a central body visible from the outside provided in the vicinity of the center, and the central body is enclosed in the spherical space a colored the central sphere, is achieved by ball transparent balls that will be supported by該分chamber structure tube by the outer wall surface all around are surrounded against the inner wall of the該分chamber structure tube.
In addition, the above-mentioned object is centered while being formed into a substantially spherical shape as a whole when a hollow surface layer member having transparency and a plurality of divided chambers housed in the inner space of the surface layer member are combined. A transparent compartment chamber tube formed so as to form a spherical space on the side, and a central body visible from the outside provided in the vicinity of the center, the central body of the compartment structure tube This is achieved by a transparent ball for ball game formed by coloring the part facing the spherical space or by coloring the panel attached to the part.

Claims (5)

A hollow surface member having transparency;
A compartment-structured tube that is accommodated in the inner circumferential space of the surface layer member and has transparency divided into a plurality of chambers;
A central body visible near the center provided near the center;
A transparent ball for ball games, comprising:   2. The transparent ball for ball games according to claim 1, wherein the central body is a colored central sphere sealed in a spherical space formed on the center side with respect to the branch structure tube.   The central body is formed by coloring a portion facing the spherical space formed on the center side of the compartment tube or by coloring a panel attached to the central tube. The transparent ball for ball games according to claim 1, wherein: A single air hole that opens in the surface layer member and communicates with one chamber of the compartment structure tube;
An air passage for communicating each chamber of the compartment structure tube with the one chamber;
The transparent ball for ball games according to any one of claims 1 to 3, further comprising: 5. The transparent ball for ball games according to claim 1, wherein the compartment-structured tube is divided into six chambers having the same shape as each other.

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