JP3002196U - Hollow ball-shaped vibrating sound generator and ball game support tool - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sound generator that can generate sound by shaking relatively easily even when people are crowded and does not cause any trouble even when used for a long time. [Structure] A hollow ball-shaped vibrating sound generator 1 is composed of a spherical ball-shaped shell 2 and an internal element 3 that is housed in the shell 2 in a sealed state, that is, a granular object. The ball-shaped shell 2 has a diameter of about 75 mm, and has a hemispherical upper shell 4 and a lower shell 5.
And are joined together with their circular openings facing each other. The inner element 3 includes the upper shell 4 and the lower shell 5 described above.
The wire material of polystyrene for molding is cut into a length of 2 to 4 mm. About 25 g of the piece 17 is filled in one sound generator 1. Piece 1 of 1
Since each piece weighs about 10 to 40 milligrams, the number of internal elements is about 1000 to 1000. The apparent volume ratio of the internal element to the hollow volume of the ball-shaped shell 2 is approximately 1:10 to 1: 3 in this example.
The range is up to. The sound generator 1 has a total weight of about 30 g.
It's about 100g, so it's relatively light, so you don't have to worry about shaking it with one hand.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device that generates sound by vibrating, and more particularly to a hollow ball-shaped vibrating sound generator that generates sound by shaking with a hand.

[0002]

[Prior art]

 The so-called rattle of infants is one that produces sound by shaking. The well-known structure of the rattle includes a hollow outer shell, a swinging member that is swingably supported inside the shell, and a vibrating member that is arranged around the swinging member at a distance. Be prepared. When the infant holds the rattle in its hand and shakes it, the swinging member swings, hits the rotating vibrating member, and the vibrating member vibrates to generate sound. Further, a rattle having a structure in which a hollow outer shell with a handle and several to ten or more particles are put in the hollow portion of the outer shell is known. In a rattle of this structure, when an infant shakes with a handle attached to the hollow outer shell, the particles collide with the inner wall of the outer shell, and vibration is generated by the outer shell. Furthermore, there is also known a rattle that has a shell that contains a sound that is generated by vibrating, such as a bell. In this type of rattle, when shaken, sound is generated by the vibration of the internal element itself as well as the vibration of the shell due to the collision between the shell and the internal element. It is also known that a relatively flexible shell contains an element that generates its own sound by the above vibration, but in this case, no sound is generated by the vibration of the shell, and the internal Sound is generated by vibrating the element of.

Another example of a device that generates a sound by shaking is a maraca, which is known as a typical instrument for percussion. Maracas consists of a hollow shell with a spherical or ellipsoidal shape, an internal element consisting of a granular body such as a small number of steel balls of a certain quantity, which is contained in a sealed state inside the shell, and the shell. It has a handle attached to the base. Recently, some hollow shells are made of plastic, but most of them are made of wood, and they are finished by hollowing out the inside of a dried monolithic wooden material to a meat pressure of about 2-5 mm. . In this case, a hole is provided at the top of the shell, a processing tool is inserted through this hole, and hollowing is performed to form a hollow portion. On the other hand, the handle is also made by processing a wooden material. The handle has a diameter of about 10 to 20 mm and a length of about 150 to 250 mm. An umbrella-like top is provided at the tip, and this umbrella-like top is finished so as to close the hole of the shell. . The maracas produced in this way are shaken by the performer with a handle, internal elements such as small steel balls collide with the inner surface of the shell and vibrate the shell, and the vibration of the shell causes the air to become dense. Waves are generated to generate sound.

[0004]

[Problems to be solved by the device]

 As described above, a part of rattle that is a toy for infants and maracas have a structure in which a granular body is housed as an internal element in a hollow outer shell, and by shaking, the granular body that is the inner element is a shell. This is common in the basic mechanism of colliding with the wall surface and vibrating the outer shell to generate sound. In the rattle, it is necessary for a weak infant to be able to hold and shake, and to generate a sound of a sound quality that is not uncomfortable for the infant at a volume that the infant can hear. For this reason, it is desirable to be light, to be able to easily produce sound even with a slight shake, and to produce a sound with a relatively high-pitched sound. On the other hand, since the rattle sound is not intended to be heard by a third party, it suffices if the infant can shake it to check the sound, and it is not necessary to have enough volume to reach the surrounding area. In this case, if the infant's hand comes into contact with the outer shell that is the vibrating body when the infant plays with the rattle, the vibration of the shell is suppressed and the sound is muffled, so that a sufficiently loud sound is not generated. Therefore, in the case of a rattle that produces a sound due to the vibration of the outer shell, it is usual that the hand of the infant should not touch the outer shell as much as possible.

The case of maracas also has a handle, but this is provided solely for ease of use. That is, since the outer shell of maracas is larger than that of rattle, no sound is produced unless it is shaken relatively large. Moreover, since the weight is about 150 to 300 g, which is heavier than the rattle, the player feels a burden when playing for a long time. In this respect, if you shake with a handle, the amplitude of the vibrating body can be increased even if the movement of the hand is reduced, so that sound can be effectively generated. In any case, the conventional mechanism that puts an element inside the shell and collides it with the internal element to generate sound by the vibration of the shell is as much as possible in the shell that is the sound generating medium. It is configured not to contact. When a device that generates such a vibration sound is applied as a toy such as a rattle, it is not configured from the viewpoint of allowing a third party to hear the sound or enjoying the sound as a group. The sound quality is more important than the sound volume, and it is configured to generate light easily and easily from the viewpoint of using it as an infant. However, different situations occur when such equipment is used as a support tool for ball games such as soccer, rugby, and baseball, or when it is used in a crowd of people, such as when used as a group. . In such a case, a relatively rich volume is required, but it is not required to be so light or small because it is not intended for infants. In addition, the sound quality does not have to be set to a sound that resonates lightly for infants, but rather it is required to produce synergistic and exciting effects by using it in a group. For example, it is required that sounds can be generated in rhythm.

[0006] In terms of volume and sound quality, maracas are more suitable than rattles as a support tool for this point game or a prop for various kinds of enjoyment as a group. However, for example, when using maracas as props for cheering for competitions, since people are densely packed, wielding objects with long patterns such as maracas interferes with the support of others. It is a danger. In addition, the person who uses it also needs to be careful so that it does not hit the people around it, and there is the problem that it cannot be used as expected. Further, since maracas have a weight of about 150 to 300 g, they feel a little heavy to hold and shake, so they cannot be shaken easily for a long time. Furthermore, because the maracas have a handle, they are bulky when placed in a bag, which makes it inconvenient to carry around. In terms of manufacturing, when producing maracas as described above, there is a problem that advanced wood processing technology is required and a relatively long processing time is required, resulting in high manufacturing cost. Even if it is not made of wood, the conventional one requires at least three components, a shell, a handle, and an internal element. Therefore, considering the assembly man-hours, the cost of a simple sound generating mechanism is high.

The present invention is configured in consideration of the above circumstances, and can generate a sound by shaking relatively easily even when people are crowded, and even when it is held for a long time and used. The object is to provide a sound generating tool that does not cause any trouble. Another object of the present invention is to provide a sound generator which is more convenient to carry than conventional ones. Yet another object of the present invention is to provide a sound generator that can be manufactured easily and inexpensively.

[0008]

[Means for Solving the Problems]

 The present invention is configured as follows to achieve the above object. That is, the hollow ball-shaped vibrating sound generator according to the present invention has a diameter from a diameter at which the tips of the grasped fingers come into contact with each other when grasped with one hand to a degree at which the tips of the grasped fingers extend slightly beyond the maximum diameter portion. A ball-shaped shell having a diameter, a thickness of about 1/100 to 1/30 of the diameter, and a weight of about 15 to 50 g, and particles having a volume of about 4 to 70 cubic millimeters are aggregated to form a whole. The internal element accommodated in the ball-shaped shell is adjusted to have a weight that is approximately one-third of the weight of the ball-shaped shell to 1.5 times the weight of the ball-shaped shell. It is characterized by having a weight of. Since the present invention is intended to provide a device which easily and easily shakes with one hand to generate a sound with an appropriate volume and sound quality, the range of the size of the ball-shaped shell varies from person to person. However, approximately 50 millimeters to 100 millimeters is suitable, and more generally, so that a wide range of people, from upper elementary school children to adults, can comfortably grasp between one thumb and the index or middle finger. Preferably has a diameter in the range of 65 mm to 85 mm.

Further, in the present specification, the term “ball-shaped” refers to a rotating body such as a sphere or an ellipsoid close to a sphere, which has substantially no angle and has a relatively small difference between major and minor axes. This rotating body includes, for example, one having a shape like a rugby ball. The larger the diameter of the ball-shaped shell, the lower the natural frequency of the shell, resulting in lower sound, and the smaller the diameter of the shell, the higher the sound generated. If the thickness of the ball-shaped shell is made larger than the diameter, change in sound quality can be suppressed, but when used within the scope of the present invention, it is approximately 1/100 to 30 minutes of the diameter. It is preferable to set in the range of 1 to 1, and it is more preferable to set to about 1/50 to 1/80. For the same material, the thicker the shell, the higher the sound generated and the lower the volume. In the case of the hard resin ball-shaped shell of about 70 ± 20 mm used in the present invention, the width of the relatively high frequency range can be adjusted by adjusting the thickness to about 1 to 2.5 mm. A relatively narrow, that is, dry sound quality, and a relatively rich volume of vibration sound is generated. As a material for the ball-shaped shell, it is common to use a hard resin because it is easy to obtain, inexpensive, and easy to process. Etc. can also be used. Examples of the resin that can be used to form the ball-shaped shell or the inner element include polyacrylic, polyacetal, polyamide, polyamine, polycarbonate, polybutadiene, polyester, polyolefin, polystyrene, polyurethane, and polyvinyl resins. To be The hardness of these resins can be adjusted by the amount of plasticizer.

When a resin is used for the ball-shaped shell, a hard resin is preferable, and it has a tensile elastic modulus of preferably 5000 kg / cm ² or more at a temperature of 23 ° C. and a relative humidity of 50%. The weight of the ball-shaped shell is preferably about 15 to 50 g. If the above-mentioned hard resin is used and the thickness is set within a range such that it can be held with one hand, the weight of the shell falls within this range. If it is too light, it does not have the desired strength as a shell, and it deforms when gripped and shaken, resulting in discomfort. Also, if the weight exceeds this range, it feels too heavy and feels resistance when shaken. In a preferred embodiment, the outer surface of the ball-shaped shell is provided with a pattern peculiar to the ball used in the ball game to be supported. For example, when the sound generator of the present invention is applied as a soccer support tool, a pentagonal pattern generally used as a pattern on the outer surface of a soccer ball is applied. In the case of baseball, a pattern that gives the image of a baseball is given. Furthermore, when used for supporting ball games such as basketball, volleyball, and rugby, it is preferable to provide a pattern on the outer surface that gives an image of each ball game. In addition, a specific color or pattern that gives an image of a specific team of ball games may be added.

As the internal element, the same material as that of the ball-shaped shell can be used. That is, hard resin is generally used in terms of cost and function, but metal, wood, or a combination thereof can be used. When the amount of internal elements is too small, the volume of sound generated by the collision with the inner wall of the shell is small, and when it is too large, the energy is consumed by the collision of particles, or the volume of the shell is reduced. As a result, the volume is lowered because it results in obstructing vibration. If the number of internal elements is too small, the generated sound will have a singing and lingering sound like a rattle. Such a lingering sound is a pleasant sound when the infant enjoys the sound alone, but from another perspective, the sound generated by one movement is not crisp and is used in a group. In some cases, it is difficult to take rhythmic joint actions. Since the sound generator of the present invention is intended to be used in a group and used in combination with rhythmic action, a conventional rattle with a small number of internal elements is not suitable. Further, if the number of internal elements is too large, a continuous sound with good crispness can be generated, but the sound tends to be muffled, resulting in a decrease in volume.

Therefore, in order to ensure a crisp sound and a desired sound volume, it is preferable that the amount of internal elements is about 300 to 4000, and more preferably 1000 to 2000. It is a range of degrees. In terms of apparent volume, the amount of the internal element is preferably approximately one third or less of the volume of the hollow portion of the ball-shaped shell, and more preferably approximately one third to one tenth. The size of the particles is set so that the volume of each particle is in the range of 4 to 70 cubic millimeters, preferably 7 to 40 cubic millimeters. The particle size is preferably increased in accordance with the increase in the diameter of the ball-shaped shell. Since it is not always easy to measure the volume of a particle, the range of the proper internal element of the particle is 4 mm in the maximum dimension and the minimum dimension It is preferable that the length is 0.5 mm or more. If the particle size is selected to be as uniform as possible, the generated sound range will be narrowed and the sound will be crisp, which is preferable. The particle size distribution is preferably adjusted so that it falls within the range of ± 20 percent of the average value. More preferably, it is adjusted to fall within the range of ± 10%.

And, the weight of one particle is selected from the range of about 4 milligrams to 70 milligrams. Preferably, particles in the range of about 10 to 50 milligrams are selected. The weight of the particles should also be increased according to the diameter of the ball-shaped shell. In a preferred embodiment, the particles are ball-shaped. Further, it may be composed of one having a shape and size like a substantially uniform rice grain. Further, it may be composed of cylindrical or cylindrical particles having a diameter of approximately 2 to 4 mm and a length of 2 to 4 mm. It may also be a cube having a rectangular cross section with a side of approximately 2 to 4 mm and a length of approximately 2 to 4 mm. The total weight of the inner element ranges from one third of the ball shell to 1. The weight is 5 times as much, and if the weight is less than this, the feel when shaken is unpleasant and the feel becomes worse. Also, the heavier it is than the ball-shaped shell, the more the element is put into it, and the heavier it feels when it is shaken. As the material of the internal element, a hard resin of the same quality as that of the ball-shaped shell can be generally used, but the material is not limited to this, and the above conditions such as glass beads, steel spheres, or dried plant fruits are applicable. However, it can be used as long as it can withstand the repeated action of vibration and impact and does not deteriorate by use.

The inner element can be simply made, for example, by cutting the raw material of an elongated linear ball-shaped shell with a diameter of 2-4 mm into small pieces with a length of 2-4 mm. In addition, it is preferable that the hollow ball-shaped vibrating sound generator according to the present invention has a weight that does not cause a pain even if a person carries it and continues to vibrate for a relatively long time. However, the total weight is adjusted to a range of about 30 to 100 g, more preferably about 40 to 90 g.

[0015]

[Action]

 As described above, the present invention basically comprises a ball-shaped shell, a granular internal element contained in the shell, and two components. In producing the hollow ball-shaped vibrating sound generator of the present invention, a resin is molded to form a split shell, an internal element is put in this shell, and then a pair of semi-finished hollow shells are joined. This semi-finished shell product can be formed by basically using the same mold and a similar process. Moreover, since the diameters of the joints of the semi-finished shell products are substantially the same, the joining is easy. The hollow ball-shaped vibrating sound generator of the present invention is large enough to be easily grasped by one hand, and a sound is generated by shaking it vertically or horizontally with the hand. In this case, since the diameter of the ball-shaped shell is at most 100 mm, it is not necessary to swing it around a great amount, and a sound is generated by swinging it with a swing width equivalent to the diameter. Further, since the outer shape is ball-shaped, it has point symmetry with respect to its center. Therefore, unlike maracas, virtually the same sound quality volume can be obtained no matter which position you shake or in which direction you shake. As described above, in the preferred embodiment, the outer surface of the ball-shaped shell is provided with a pattern peculiar to the ball used for the ball game to be supported, so when using it as a support tool, the user is psychological. In addition, the sense of unity with the ball game can be strengthened, and when used in a group, the sense of solidarity as a support can be enhanced.

For example, when the sound generator of the present invention is applied as a soccer cheering tool, a pentagonal pattern that is generally used as a pattern on the outer surface of a soccer ball is applied. Not only can the supportive effect as a group be improved by generating a rhythmic crisp sound with the above-mentioned unique configuration, but also the unique pattern on the outer surface of the support tool , It can further enhance the sense of solidarity among the supporters. The vibrating sound generating device according to the present invention is considerably lighter than the conventional vibrating sound generating device of this type, and thus is easy to use. Moreover, it is small enough to be hidden in one hand, so there is no danger of shaking it with your hand even in a crowded place. Further, since the device according to the present invention has no handle, it is compact and can be easily carried in a bag or pocket so that it can be easily taken anywhere.

[0017]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Referring to FIG. 1, there is shown a cross-sectional view of a hollow ball-shaped vibrating sound generator according to an embodiment of the present invention. The hollow ball-shaped vibrating sound generating tool 1 of this example is composed of a spherical hollow ball-shaped shell 2 and an internal element 3 that is housed in the spherical shell 2 in a sealed state, that is, a granular object. The ball-shaped shell 2 of this example has a diameter of about 75 millimeters and is composed of a substantially hemispherical upper shell 4 and a lower shell 5. The upper shell 4 and the lower shell 5 are joined with their circular openings facing each other to form the ball-shaped shell 2. As shown in FIG. 2, in this example, the lower shell 5 is not an accurate hemisphere, and the opening 6 extends in the direction of the upper shell 4, which is the opposite end at the opening, that is, the extension 6 having a width of about 5 mm extends over the entire circumference. That is, it is formed in a ring shape. In this case, the inner surface 7 of the lower shell 5 is smoothly continuous to the annular extension portion 6, but the continuation of the outer surface 8 from the tip portion to the extension portion 6 is such that the extension portion 6 is lower than the body portion 9 below the extension portion 6. Since it is thin, an end face 10, that is, a step portion, extending in the thickness direction from the outer surface 8 to the inner surface 7 is formed.

A protrusion 11 is provided on the outer surface in the vicinity of the central portion of the extension 6, that is, about 3 to 4 mm above the lower end of the outer surface of the lower shell 5, and the protrusion 11 extends. The outer surface of the portion 6 is formed so as to form one annular streak in the circumferential direction. In this example, the thickness of the upper shell 4 is about 1.3 mm, and the thickness of the lower shell 5 is 1.5 mm. The upper shell 4 is finished almost exactly in a hemispherical shape. In this case, the upper shell 4 and the lower shell 5 are formed to have the same outer diameter. On the inner surface 12 of the upper shell 4, an annular thin engagement portion 13 corresponding to the extension 6 of the lower shell 5 is formed. The thin engagement portion 13 has a width of about 5 mm corresponding to the extension 6 of the lower shell 5 and is formed on the lower end of the inner surface of the upper shell 4 over the entire circumference. Therefore, an end surface 15, that is, a stepped portion extending from the inner surface to the outer surface is formed in a continuous portion above the main body portion 14 of the upper shell 4 and the thin engagement portion 13. The thin engagement portion 13 is formed with a similar projection 16 over the entire circumference slightly below the position of the extension 6 corresponding to the projection 11. In the present example, the upper shell 4 and the lower shell 5 are formed by molding polystyrene as a raw material, mixing a predetermined amount of a plasticizer so that the desired hardness is obtained, and then melting the mixture by heating to put it in a mold. Both of them are molded to have a predetermined thickness by using basically the same mold except for the molding portions of the extension portion 6 and the thin engagement portion 13.

The outer surface of the ball-shaped shell 2 of this example has a pattern with a pentagon drawn on the surface of a soccer ball. With this pattern, the hollow ball-shaped vibrating sound generator 1 of this example makes the user imagine a soccer ball. That is, the vibration sound generator 1 of the present example is provided assuming that it will be used mainly as a soccer cheering tool. It is expected that the soccer supporter will have a sense of unity with the player and a sense of solidarity with other supporters due to the pattern on the outer surface of the shell 2. The inner element 3 of this example is obtained by cutting a polystyrene wire material, which is a material for forming the upper shell 4 and the lower shell 5, into a length of 2 to 4 mm. Since the wire material has an elliptical cross section of about 1 to 4 millimeters, one piece 17 of the internal element of this example has a major and minor axis elliptical cross section of 1 to 4 as shown in FIG. It is the size of the length of a remeter. In this example, about 25 g of this piece 17 is filled in one hollow ball-shaped vibrating sound generator 1. Since the weight of one piece 17 is about 10 to 40 milligrams, the number of internal elements is about 1000 to 2000. The apparent volume ratio of the internal element to the volume of the hollow portion of the ball-shaped shell 2 is approximately 1:10 to 1: 3 in this example.

In assembling the hollow ball-shaped vibrating sound generating tool 1, a molded lower shell 5 is filled with a predetermined amount (25 g in this example) of a polystyrene piece of a wire material which is the inner element 3 and is filled. Next, an adhesive is applied to the respective surfaces of the extension 6 of the lower shell 5 and the thin engagement portion 13 of the upper shell 4, and the inner element 3 is put in and the opening is directed upward as shown in FIG. The upper shell 4 is brought closer to the lower shell 5 from above with respect to the lower shell 5 in the closed state, and the upper shell 4 is aligned with the lower shell 5 so as to close each other's opening. An annular protrusion 16 formed around the entire inner surface of the joint 13 rides over a protrusion 11 formed on the extension 6 of the lower shell 5 and enters, and at the outer surface 8 of the thin engagement portion 13 of the upper shell 4. The lower end moves to a position where it comes into contact with the end surface 10 of the upper end of the main body 9 of the lower shell 5 and is finally joined. At this position, the upper end of the elongated portion 6 contacts the lower end 15 of the body portion 14 of the upper shell 4 on the inner surface side. As described above, since the outer surface 18 of the upper shell 4 and the lower shell 5 have the same diameter, finally, the outer surfaces of the upper shell and the lower shell are joined together in a smoothly continuous state. As described above, the lower shell 5 has the elongated portion 6 that is formed in a thin state inwardly of the main body portion 9, and the outer surface 8 thereof is provided with the protruding portion 11 and correspondingly. A thin engagement portion 13 thinner than the main body portion 14 is formed on the inner surface 12 of the upper shell 4 in a biased manner to the outer surface 18, and on the inner surface side thereof is lower than the protruding portion 11 of the extension portion 6 in the coupled state. Since the projecting portion 16 is formed at the position, the projecting portion 11 and the projecting portion 16 are engaged with each other in the final combined state of the upper shell 4 and the lower shell 5 as described above. After that, it is difficult to separate from each other, and a strong bonded state is obtained. When the adhesive effect of the adhesive applied to the outer surface of the elongated portion 6 or the inner surface of the thin engagement portion 13 of the upper shell 5 is produced, the product is completed.

The hollow ball-shaped vibrating sound generator 1 of this example generates a sound when a person holds a ball-shaped shell by hand and shakes it. The sound generator 1 of this example has a total weight of about 30 g to 100 g, and is relatively light, so it is not difficult to continue shaking with one hand.

[0022]

【effect】

 As described above, the present invention can be manufactured by simply molding a semi-spherical resin semi-finished product, and thereafter can be manufactured by a simple joining process, which is extremely easy to manufacture. Moreover, since the joining process only involves pressing the semi-finished semi-spherical products, no special technology is required. And since the internal element is originally a material necessary for forming a semi-spherical shell semi-finished product, it can be obtained very easily. Since this material is usually cut to an appropriate size, it can be used as an internal element without any special processing. As described above, the hollow ball-shaped vibrating sound generating device according to the present invention can be manufactured extremely easily, and thus is extremely cost-effective as compared with a conventional device such as maracas. The hollow ball-shaped vibrating sound generator of the present invention is large enough to be easily grasped by one person with one hand, and has a relatively high sound quality and a sufficient sound quality for this kind of device easily without a large swing. Generates a volume sound. From another perspective, the sound generated by the sound generator of the present invention is a crisp sound, which is extremely suitable for a group of people to make a rhythmic sound, and to strengthen the sense of unity among the supporters. You can In this case, by treating the surface of the outer shell with a pattern unique to the ball game related to the support, the supporter's sense of familiarity with the ball game can be further deepened, and the sense of unity with the player and the solidarity between the supporters can be strengthened. effective.

Since the sound generator according to the present invention is so small that it can be completely hidden in one hand of a person, there is no danger in shaking it while holding it in a hand when people are crowded. In addition, since it does not have a handle like maracas, it is easy to carry in a bag, pocket, etc., so you can easily take it anywhere. In addition, because it has a ball shape, unlike maracas, virtually the same sound volume can be obtained no matter which position you shake it, or in which direction you shake it. Moreover, since the weight is 100 g at most, it does not cause any trouble even if you keep shaking for a long time.

[Brief description of drawings]

1 is a cross-sectional view of a hollow ball-shaped vibrating sound generator according to an embodiment of the present invention;

FIG. 2 is an enlarged cross-sectional view of part A in FIG.

FIG. 3 is a perspective view of one piece of the inner element,

FIG. 4 is an exploded sectional perspective view of an upper shell and a lower shell.

[Explanation of sign]

1 Hollow ball-shaped vibrating sound generator, 2 Ball-shaped shell, 3
Inner element, 4 upper shell, 5 lower shell, 6 extension, 7
Inner surface, 8 outer surface, 11, protrusion, 13 thin engagement portion, 16 protrusion.

Claims (7)

[Scope of utility model registration request] 1. A diameter from the diameter at which the tips of the fingers gripped with one hand contact each other to the extent that the tips of the fingers gripped extend slightly beyond the maximum diameter portion, and 1/100 of the diameter.
A ball shell having a thickness of from 1 to 30 times and a weight of 15 to 50 g, and particles having a volume of 4 to 70 cubic millimeters are aggregated to one third of the weight of the ball shell to the ball. A hollow ball-shaped vibrating sound generator having an internal element which is adjusted to have a weight 1.5 times that of the cylindrical shell and is housed in the ball-shaped shell, and has a weight of 30 to 100 g. 2. A diameter of 65 to 85 millimeters and 1
A ball-shaped shell having a thickness of from 1 to 2.5 mm and a weight of from 15 to 50 g, and a ball-shaped shell adjusted to have a total weight of from 15 to 50 g with particles having a volume of from 4 to 70 cubic millimeters assembled. A hollow ball-shaped vibrating sound generator comprising an internal element housed in a shell and having a weight of 30 to 100 g. 3. The hollow ball-shaped vibration according to claim 1, wherein the apparent volume of the internal element is in the range of one third to one tenth of the volume of the hollow portion of the ball shell. Sound generator. 4. The hollow ball-shaped vibrating sound generator according to claim 1, wherein the weight of one particle of the inner element is in the range of 4 mg to 70 mg. 5. An outer diameter of 50 to 90 millimeters is provided so that a wide range of people, from upper elementary school children to adults, can comfortably grip between the thumb and the index finger or the middle finger of one hand. 15 with a thickness of 0.5 mm
It has a weight of 50g to 50g, and the outer surface is given a pattern unique to the ball used for the ball game to be supported, and a spherical outer shell made entirely of hard resin. Within 4 mm in length,
It has a length in the minimum dimension direction of 0.5 mm or more and is composed of a granular internal element made of a hard resin, and the internal element is housed in the outer shell so as to weigh 15 g to 50 g as a whole. A ball game support tool characterized by generating a sound by supporting the ball game by grasping and shaking it with one hand. 6. The ball game support device according to claim 5, wherein the resin is a resin mainly composed of polystyrene. 7. The ball game support tool according to claim 5, wherein the pattern is a pentagonal pattern drawn on the surface of a soccer ball.