Soft badminton equipment set suitable for young children, racket set and soft shuttlecock set

Abstract

To provide a soft badminton equipment racket set, a soft shuttlecock and an outdoor soft shuttlecock adapted to the developmental stages of young children in order to develop a badminton environment that is easy for young children to get started with. The solution includes four sizes of plastic soft badminton rackets to accommodate four age stages of toddlers, from 2 to 5 years old, and four sizes of indoor soft shuttlecocks to accommodate four age stages of toddlers. In addition, in order to accommodate outdoor environments, a soft badminton shuttlecock adapted to outdoor environments is provided.

Description

[Technical Field]

[0001] The present invention relates to an introductory badminton sport for children that is easier to handle than badminton, soft badminton equipment, rackets for children, and soft shuttlecocks.Soft badminton is a new sport derived from badminton. [Background technology]

[0002] Thanks to the efforts of players and enthusiasts over many years, as well as advances in science and technology, the skills required for badminton have evolved rapidly. The shuttlecock has a maximum initial speed of 565 km / h, making it the fastest of any ball sport, making it a highly difficult sport. It is an indoor racket sport that uses the same shuttlecock, the same size racket, the same height net, and the same size court for all ages, from children to adults. In order to provide a badminton environment for young children, I have developed a soft shuttle for soft badminton (Patent No. 5922831, registered on April 22, 2016) and a soft badminton racket set for soft badminton (Patent No. 6458211, registered on December 28, 2018). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-038754 [Patent Document 2] Japanese Patent Application Publication No. 2020-048787 [Patent Document 3] Japanese Patent Publication No. 2022-106431 [Patent Document 4] Japanese Patent Application Publication No. 2023-058397 [Patent Document 5] Japanese Patent Application Publication No. 2025-077499 Summary of the Invention [Problem to be solved by the invention]

[0004] Badminton requires players of all ages, from toddlers to adults, to use the same shuttlecock, the same size racket, the same height net, and the same size court, making it too difficult for toddlers and elementary school children just starting out, and preventing the sport from becoming more widespread. <About the badminton playing environment for young children> For young children, the hard shuttlecock and sharp feathers can cause unbearable pain if they hit the face or body, and what is even more frightening is if they hit the eyes. It is considered a dangerous game for young children, and it is generally recognized in society that badminton is not suitable for infants and children. <Current state of badminton for elementary school students> Due to the badminton environment, including shuttlecocks that are unsuitable for young children, rackets that are too large and heavy, net poles that are too high, and badminton courts that are too large, most children don't start playing badminton until they are in the upper grades of elementary school or junior high school. Many famous badminton players were able to start playing badminton at around the age of 5, 6, or 7, mostly due to the influence of their badminton-loving families, and there are exceptions such as Akane Yamaguchi, Mizuki Fujii, Kanta Tsuneyama, Kento Momota, and Nozomi Okuhara. However, since there are generally no badminton clubs in elementary schools, children who do not have parents or siblings who have experience playing badminton are unable to get involved with badminton at an early age, and it is extremely rare for children before entering elementary school or under the fourth grade to become interested in badminton.

[0005] Badminton shuttlecocks have conical, cylindrical feathers made of densely packed waterfowl feathers that make them difficult for air to pass through, and because they are large and light, they have high air resistance and are easily affected by wind. In addition, because they have the characteristic of rapidly slowing down their own rotation, they can easily be blown away by even a slight breeze. These are the reasons why badminton is limited to indoor sports and cannot be enjoyed by people outdoors. Furthermore, in order to provide an environment suitable for young children to easily get started in badminton, the soft shuttlecock for badminton that I have registered under Patent No. 5922831 (Patent Document 1) has various shortcomings and shortcomings. For example, the size of the soft shuttlecock is just a sponge sphere with a diameter of 7mm and a ribbon-shaped feather that is only one size, approximately 180mm in length from side to side, so it is OK for beginners, but as children grow, they will need to be able to handle faster speeds and smaller sized shuttlecocks. In addition, the soft badminton racket set for soft badminton under Patent No. 6458211, registered on December 28, 2018, is designed to accommodate three rackets for four age groups from two to five years old, and it is necessary to accommodate four rackets at the most.

[0006] Furthermore, the PP racket part for children in the soft badminton racket set and the soft shuttle for soft badminton will be patented separately, making it difficult to implement the idea. It will be necessary to provide a set of soft shuttlecocks and soft badminton rackets for children.

[0007] This invention was made based on the above circumstances, and its purpose is to separately file a soft badminton racket set for soft badminton in my patent no. 6458211, and this application is a racket part for children. Adjust the step size We also offer a set of PP rackets for children in four different sizes. In addition, my patent number 5922831 is a soft shuttle for soft badminton, and the improvement and size adjustment This allows us to provide soft shuttles in four different sizes. Furthermore,... [Means for solving the problem]

[0008] In order to solve the above-mentioned various problems, according to a first aspect of the present invention, In order to achieve the objective of corresponding to four age stages of children from 2 to 5 years old in the above-mentioned problem situation, the present invention provides: infant reach Soft badminton equipment suitable for set Racket set and soft shuttlecock set And, and, To encourage interest in playing with children aged 2 to 5, the racket used is designed for the developmental stage of children. Is Polye It is manufactured using polyethylene and polypropylene (PP) materials, etc. As children grow over the course of four years, the size of the racket changes accordingly, so there are four different sizes of rackets. The standard size for a 2-year-old is all Length 265mm, width (head) 143mm - for 3-year-olds all Length 315mm Width 148mm For 4 year olds all Length 365mm, width 153mm, for 5-year-olds all Available in four sizes, length 415mm, width 158mm. The indoor soft shuttle is made of four sizes of sponge balls attached to four sizes of ribbon members of different lengths. Two sizes of golf practice balls are attached to the soft shuttlecock for outdoor use, which is made of four different sizes of ribbon members. Characterized by Adaptable to young children Soft badminton equipment set Racket set and soft shuttle set .

[0009] In addition, in the above-mentioned invention, the racket is made of PP material and is available in four sizes. The elliptical head frame part made of PP material is molded into an H-shape (cross section) which is light and has excellent durability. The frame portion has a string made of PP material to form a vertical and horizontal crossing hitting surface, The PP shaft part joined to the head frame part has a thin tip and a thick tail, and is molded into an H-shape (cross section) that is light and has excellent restoring force. The PP octagonal grip joined to the shaft has a cylindrical structure with two vertical concave halves that fit together, The grip has a flexible cushioning performance. is wrapped around Prepare for things, Characterized by Adaptable to young children Soft badminton equipment set Racket set and soft shuttle set .

[0010] According to a second aspect of the present invention, a soft badminton racket is provided that corresponds to the four age stages of development of young children. Indoor and outdoor The soft shuttlecock is provided with four sizes of polyurethane sponge (porous) balls: 76mm diameter for 2-year-olds, 70mm diameter for 3-year-olds, 60mm diameter for 4-year-olds, and 50mm diameter for 5-year-olds. In addition, to accommodate outdoor environments, it is equipped with a 50mm diameter iron ball for improving your golf game and a 40mm diameter approach ball for improving your golf game. A thin hole is formed by partially piercing the various balls using a carpenter's drill or a nail-like rigid member, The aforementioned Various The wing part is made of multiple ribbons (organdy ribbons) attached to the ball, and the length of the wing part can be set to four different lengths: 180mm±10mm for 2 years old, 160mm±10mm for 3 years old, 140mm±10mm for 4 years old, and 120mm±10mm for 5 years old. Characterized by Adaptable to young children Soft badminton equipment Set racket set and Soft shuttle set.

[0011] In the above invention, the four age stages of the child are R The blades have four lengths, The blade portion is made of a plurality of ribbon members loosely twisted together at the tip of the blade. feather A rope-shaped insertion portion is formed, The ribbon blade is made up of a plurality of ribbon members, and the ribbon members are mutually separated via the ribbon member spread prevention portions. In The positions of the spread prevention parts are each installed at a position half the length of the blade, The tips of the blades are twisted together Feather rope The front end of the insert is provided with a silicone rubber insert fixing part to prevent it from spreading. The aforementioned featherThe insertion fixing part at the front end of the rope-like insertion part is inserted and fixed to the center of a sponge sphere with a thin hole, and the strip-like blade is attached to the sphere via the insertion fixing part. Infants characterized by reach Soft badminton equipment suitable for Set racket set and Soft shuttle set. [Effects of the Invention]

[0012] The PP racket set and soft shuttlecock come in four different sizes, allowing children to change their soft badminton equipment as they grow, and naturally progress through the four different sizes. In addition, the soft shuttlecock's large size makes it an easy target, and its gentle flight makes it easy for anyone to catch and hit. Furthermore, because it is made of a soft sponge material, it eliminates fear for beginners and young children, allowing them to play soft badminton safely without worrying about injuries. Children can learn the basic techniques of badminton through four stages of play over a four-year period, cultivating a deep interest in badminton.

[0013] Furthermore, by using the badminton net poles, elementary school badminton racket set, and elementary school badminton cord, which can be adjusted to eight different heights for everyone from first graders to adults, young children can learn all the techniques of soft badminton, and as a sport that anyone can play at any age and for any age, beginners can gain confidence and improve quickly, and by increasing the number of people taking up the sport (as soft badminton applies to badminton rules, players can also improve their badminton skills), it will play a role in popularizing badminton. In addition, the outdoor soft shuttle is not limited to gymnasiums, but children and adults can play in open spaces such as parks and parking lots using assembled and movable net supports. Furthermore, a small return board (my patent no. 7470485, a home badminton practice equipment) can be set up in the garden of your home, allowing children aged 4-5 and their parents to enjoy the experience.

[0014] Soft badminton is a new sport that can be played by anyone, at any age, and for as long as they like, so it also plays a role in maintaining the health of the elderly and physically disabled. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a front view showing the step sizes of four rackets molded from polyethylene or polypropylene (PP) materials according to the present invention (before the inner grip tape is wrapped around the grip). [Figure 2] FIG. 2 is a representative front view showing each part of a racket for three-year-olds. [Figure 3] FIG. 3 is a side view showing the thickness of each part of the racket as viewed from the side. [Figure 4] FIG. 4 is a partially enlarged view of head frame portion 21A of the racket and a diagram showing the shape of each part from an H-shaped cross section. [Figure 5] FIG. 5 shows a front vertical perspective view and a cross-sectional view of the tip and tail ends of the racket shaft, each of which is H-shaped. [Figure 6] FIG. 6 is an exploded view showing the structure of the two vertically interlocking cylindrical grip body of the racket. [Figure 7] FIG. 7 shows the completed grip body and the grip with the inner grip tape wrapped around it. [Figure 8] Figure 8 shows the completed soft shuttle for indoor soft badminton. [Figure 9] FIG. 9 is a diagram showing the formation of ribbon blades and the lengths of the ribbon members 4. [Figure 10] FIG. 10 shows the formation of the vertebra-shaped fixing portion 126 and the method of inserting and fixing the second wing portion 120 into the ball portion. [Figure 11] FIG. 11 is a vertical cross-sectional view of the ribbon blade and the small diameter hole of the sponge ball. [Figure 12] Figure 12 shows the soft shuttlecock for outdoor soft badminton. [Figure 13]FIG. 13 shows two types of flights used in outdoor soft badminton competitions. DETAILED DESCRIPTION OF THE INVENTION

[0016] This invention is designed to stimulate interest in badminton through play for children from the age of two. To accommodate the four different age groups of children, we offer a set of four rackets in different sizes and four soft shuttlecocks in different sizes. We also provide outdoor soft shuttles to encourage children to play outdoors. A soft badminton racket set for children according to a first embodiment of the present invention will be described below with reference to Figures 1 to 7. A soft shuttlecock for soft badminton according to a second embodiment will be described with reference to Figures 8 to 13.

[0017] <<Outline of the configuration of the racket 10 according to the present embodiment>> As shown in the front view of FIG. 1, the structure of the racket 10 includes a head portion 20, a shaft portion 30, and a grip portion 40. The soft badminton racket 10 according to this Example 1 is made of polyethylene or polypropylene (PP) materials and can be molded using a variety of methods, such as extrusion molding or injection molding, using a mold (it can also be manufactured using carbon material at low cost, like a real badminton racket). The lower part of the elliptical head portion 20 having the strings is joined to the tip portion 30E of the shaft portion 30 using a connecting T-triangular throat 25, and the tail end 30G of the shaft is joined to the grip portion 40, forming a 4-piece PP racket. The children's racket set according to the first embodiment of the present invention includes four rackets 10 in various sizes as shown in FIG. <<The recommended racket set size for each age is listed in Table (1)>> [Table 1] As shown in the table above, children should use rackets suited to their physique from an early age, gradually moving to larger sizes as they grow. Smaller rackets offer better control, but the sweet spot is also smaller, so accurate hitting is required. Since childhood is a time of nervous system development, playing in an environment that requires greater concentration will help develop accurate hitting techniques.

[0018] <<Since the four rackets in Example 1 are almost identical in structure, a drawing of a racket for a three-year-old child is presented and explained as a representative drawing. Explanations of the other three sizes will be omitted.>> The plastic racket in Example 10 will be explained. Drawing 2 shows the position of each part from the front. The head section 20 is composed of an oval frame 21A, with a hitting surface formed at the intersection of the main string section 23 and the cross string section 24. To make the head lighter and increase its strength, a concave groove 21 is provided on the front of the frame (the front is on both sides). The flanges 22 are rails on both sides of the concave groove. A triangular throat portion 25 is provided to harmonize the stepped joint between the large head portion 20 and the thin shaft portion 30. A shaft portion 30 is joined below the throat portion 25. The shaft tip portion 30E is tapered to be narrower than the shaft rear end portion 30G. A concave groove (H-shaped cross section) portion 31 is provided to make the shaft lighter and to increase its strength, and shaft flange portions 32 are formed on both sides of the concave groove portion 31. The grip section 40 is connected to the rear end 30G of the shaft, and a shoulder section 41 is formed at the front end of the grip to ensure a harmonious connection between the thick grip section and the thin shaft section. Looking at the W-face grip of the racket, it is shown as a front grip section 42, a diagonal grip section 43, an end section 45, and an end face section 46. A larger bulging end portion 45 is provided on the grip body to prevent the racket from slipping out of the hand.

[0019] The shape of the racket as seen from the side (T) in Figure 3 is explained. Unlike the front view, the frame 21A of the racket head 22 does not have a groove 21. The upper end of the throat 25 is the same thickness as the head frame 21A, and the lower end is the same thickness as the shaft front end 30E, allowing for smooth molding. There are also no recessed grooves 31 on the side of the shaft 30. The shaft portion 30 is molded with a shape in which the front end 30E is slightly narrower than the rear end 30G. A shoulder portion 41 is formed at the front end of the grip, allowing it to be smoothly joined to the shaft 30G. The side surfaces 44 of the grip 40 are designed to be slightly narrower than the front surface 42, and diagonal surfaces 43 are provided on the left and right sides of the front surface 42, forming the grip 40 into an octagonal shape. The end portion 45 bulges out from the cylindrical body.

[0020] Fig. 4-1, an enlarged view of the head portion in Fig. 4, shows the shape of the flange portions 22 provided on both sides of the groove portion 21 of the frame 21A of the head 20. Fig. 4-2 shows the groove portion 21 and the flange portions 22 formed on both sides from the H-shaped cross section of the frame portion 21A. 26 is a web portion in the middle of the double-sided groove portion 22. As shown in the cross section, the W-shaped double-sided groove portion 22 is provided, and the side (T) shows a shape without a groove. The sizes of the four racket head components are listed in Table (2). [Table 2] The head portion of a soft badminton racket for children can be made up of four pieces according to the sizes in the table above.

[0021] The shape of the racket shaft portion 30 will be explained with reference to FIG. First, the shaft in Figure 5-1 is a perspective view of the racket from the front (W) side. It shows a tapered shaft with flanges 32 formed on both sides of the longitudinal grooves 31 from the front end to the back end, with the front end 30E being narrower and the back end 30E being wider. Figure 5-2 shows the H-shape of the shaft from the cross section of the shaft front end 30E. Both W-faces are provided, and flanges 32 are formed on both sides of the grooves 31. A web 33 is provided in the center of both grooves 31 and the four flanges 32 to form the H-shaped shaft. Figure 5-3 shows the H-shape of the shaft from the cross section of the rear end 30G of the shaft. The position of each part is the same as the front end, but the thickness is larger than the front end. The sizes of each part of the 30 shaft components are listed in Table (3). [Table 3] The dimensions of each part listed in Table 3 make it possible to create a three-section H-shaped shaft configuration.

[0022] The structure of the grip 40 will be described with reference to FIG. To make the racket lighter, it is necessary to hollow out the grip 40. As shown in the drawing, the grip portion 40 is formed into two separate parts, the W-side shallow concave half portion 40C and the W-side deep concave half portion 40M, and various internal structures are provided for fitting them together. As shown in Figure 6-1, which is an internal plan view of the shallow recessed half body 40C on the W side of the grip, two female joining pins 47 are provided at the front and rear of the hollow part 49 of the grip of 40C. To make the grip 40 sturdy, five reinforcing rails 51 are provided inside the grip. 49 is divided into six levels of space by the 51. The cross-sectional shape of the W-side shallow recessed half body 40C is explained in Figure 6-1-2. The front face 42 and both diagonal faces 43 of the grip part 40 are confirmed, and the length of the joining female pin part 47 is shown. The height of the grip internal reinforcing rail part 51 is also shown. As shown in Figure 6-2, which is an internal plan view of the deep concave half body 40M on the W side, two connecting male pins 48 are provided at the front and rear in the hollow portion 49 of the grip of 40M. Two male pins 48 are also provided in the reinforcing rail portion 50. To create a sturdy grip portion 40, five reinforcing rail portions 51 are provided inside the grip. 49 is divided into six levels of space by 51. The cross-sectional shape of the W-side deep recessed half body 40M is explained in Figure 6-2-2. The side surface 44 and the diagonal surface portions 43 on both sides of the grip 40 are confirmed, and indicate the length of the connecting male pin portion 48. The height of the reinforcing rail portion 50 of the male pin 48 is also indicated. The inner diameter of the female pin portion 47 and the outer diameter of the male pin 48 are designed to fit snugly into each other. FIG. 6-3 shows a side view of the W-side shallow recessed half body portion 40C. Figure 6-3-2 shows the cross-sectional shape. FIG. 6-4 shows a side view of the W-side deep concave half body 40M. FIG. 6-4-2 shows the height of the grip inner reinforcing rail portion 51 from the cross section of the W-side deep concave half body portion 40M. Figure 6-5 shows the completed state of the grip portion 40, in which the W-side shallow concave half body portion 40C and the W-side deep concave half body portion 40M are fitted together perfectly. FIG. 6-5-2 shows the state in which the female pin portion 47 is tightly inserted into the male pin 48 and joined from the cross section of the grip 40.

[0023] Next, FIG. 7 shows the grip portion 40 in its completed state. As shown in Figure 7-1, the thin shaft rear end 30G and the thick grip 40 are smoothly joined using the shoulder portion 41. The shape is shown as consisting of the grip front portion 42, diagonal surface 43, side surface 44, bulging end portion 45 provided at the rear end of the grip, and end face portion 46. Figure 7-2 shows the cross-sectional shape of the straight part of the grip. FIG. 7-3 shows the shape of the grip end surface portion 46. Fig. 7-4 shows the shape of the grip part 40 after the inner grip tape part 52 is wound around it. The inner grip tape part 52 has a soft cushioning effect, which is gentle on the hands of young children and prevents pain caused by friction. The size of each part of the grip for 2-year-old children is listed in Table (4). [Table 4] The size of each part of the grip for 3-year-old children is listed in Table (5). [Table 5] The size of each part of the grip for 4-year-old children is listed in Table (6). [Table 6] The size of each part of the grip for 5-year-old children is listed in Table (7). [Table 7] According to the above-described embodiment 1, a four-stick size PP racket for children can be provided.

[0024] In embodiment 2 of the present invention, ...In order to make it easier for young children and older beginners to hit, I have reformed the shuttlecock in my previous patent application, No. 5922831, into a soft shuttlecock to accommodate the developmental stages of young children. The ball part has been enlarged, and the diameter size has been changed. 4 Size adjustment It also comes with four polyurethane sponge balls in different sizes. ……

[0025] First, referring to Figure 8, the structure of the soft shuttle section 100 will be explained in outline, using a representative drawing of a shuttle for five-year-olds. (Since the structure of the four size shuttles is the same, explanations of the three types of shuttles other than the representative drawing will be omitted.) The construction of the outdoor soft shuttle section 150 will be explained later with reference to FIG. As shown in FIG. 8, a soft shuttlecock 100 for soft badminton has a ball portion 110 and a ribbon shuttlecock portion 120. In this embodiment, the ball portion 110 is provided in a spherical shape and is made of a light material that slows down due to air resistance. A soft polyurethane sponge ball is preferable as such a material. A ribbon blade portion 120 is attached to the sponge ball portion 110 as described above, and this blade portion 120 is formed by three ribbon members 121, and an anti-unraveling portion 122 is provided at the rear end of the ribbon member 121. A loosely twisted rope-shaped insertion portion 124 is provided at the front end of the wing portion 120, and a circular rubber insertion fixing portion 126 is provided at the front end of this rope-shaped insertion portion 124 and is inserted into and fixed to the ball portion 110. (The entire wing portion can be seen in Figure 10-5 of Drawing 10.) The rope-shaped insertion part 124 attached to the ball has a rope-shaped neck part 124F that is exposed outside the ball by 10 mm. In order to prevent the three strip-shaped ribbon members 121 of the blade portion 120 from spreading, a ribbon-shaped member spread prevention portion 125 is provided at a position approximately midway between the front end and the rear end. As described above, the soft shuttlecock 100 for soft badminton shown in FIG. 8 can be constructed. The recommended soft shuttle sizes for each age are listed in Table (8). [Table 8] As shown in the table above, children are encouraged to use soft shuttlecocks suited to their physiques from an early age. As the child grows, the size gradually increases, and the child can play with the bag for 4 to 5 years. You can learn the basic techniques of badminton and cultivate your interest in badminton. It's fun even for beginners, even the elderly.

[0026] The structure of the ribbon blade portion 120 will be described with reference to FIG. The organza ribbon feathers are light and soft, making it easier for the shuttle to make a U-turn, and also act as a rudder during the Soft Shuttle 100's flight, stabilizing it while it is flying and helping to slow it down. The length of the blades 120 and the width of the ribbon member also affect the speed of the shuttlecock. The air resistance of the wide, long ribbon member 120 can slow down the shuttlecock. To make the soft shuttlecock easier to see, it is preferable to select a bright color for the ribbon member 121. As shown in Figure 9-1, In order to accommodate the shuttle speed for four different ages of children, the length and width of the ribbon member portion 121 are provided in four different sizes as shown in Table 8. In addition, since organza ribbon has thin threads and a low weave density, if it is cut and left as it is, the threads will unravel, so a thread fray prevention part 122 is provided at the rear end of the ribbon member part using fabric fray prevention liquid or an overlock machine or instant adhesive, which also contributes to the long life of the belt-shaped ribbon blade part 120. Referring to FIG. 9-2, the configuration of the blade portion 120 will be described using the ribbon member portion 121. The front ends of the three ribbon members are loosely twisted together to form a single rope-shaped insertion portion 124, and rope-shaped unraveling prevention portions 123 are provided at two locations, the front and rear ends, to prevent the rope-shaped portion 124 from fraying. It is preferable to firmly tie the feather rope-shaped portion 124 with thread to prevent it from unraveling. (The insertion portion 124 may be formed in a different way, for example, by forming it into a bundle.) The length of 124 is such that it is inserted up to the radius of each size sponge ball and has a fixed portion with a length of rope-shaped neck 124F exposed outside the ball by 10 mm (the state of the rope neck 124F is as shown in Figure 8). Approximately midway between the rear end unraveling prevention section 123 of the rope-shaped insertion section 124 and the rear end of the blade section 120, there is provided a spread prevention section 125 for the three ribbon members (125 is sewn together horizontally using a thick nylon thread of approximately 0.8 to 1 mm). At the moment the shuttle makes a U-turn when hit with the racket, the ribbon members of the blade section do not get caught in the sponge ball, allowing the shuttle to make a smooth U-turn. FIG. 9-3 is a cross-sectional view of the wing portion 120 at the position of the spread prevention portion 125, showing an integral equilateral triangle formed by the spread prevention portions 125 of the three ribbon members 121. As described above, the ribbon blade portion 120 can be configured as shown in FIG. 9-2 of FIG.

[0027] FIG. 10 shows the formation of the vertebra-shaped fixing portion 126 and the method of inserting and fixing the second wing portion 120 into the ball portion. FIG. 10-1 shows the state in which the rope-shaped insertion portion 124 at the front end of the blade portion 120 is prepared for insertion into the mold space portion 128 of the prototype homemade polyethylene fixing portion forming mold portion 127. Figure 10-2 shows how commercially available liquid silicone or silicone sealant bond part 130 (my handmade prototype) is set in a caulking gun 131 and injected through the curved nozzle part 130 part 132 into the mold space part 128 of the mold part 133 that forms the homemade polyethylene fixing part. (Completely hardened silicone is harmless and safe.) FIG. 10-3 shows a vertical cross section of the mold part 133. FIG. 10-4 shows the shape of the hollow portion 134 of the mold from above the mold portion 133. (Note: For commercial mass production, a molding machine can be used to inject liquid silicone into the mold cavity of the rope-shaped insert 124, which will harden to form the rubber vertebra-shaped fastener 126.) FIG. 10-5 shows the hardened rubber circular insert fixing portion 126 attached to the front end of the rope-like insert portion 124 extracted from the mold cavity portion 128. Figures 10-6 and 10-7 show the joining method of the wing part 120 and the ball part 110·151 of my second prototype. Figure 10-6 shows the state in which the rope-like insertion portions 124 of the blade portions 120, without the circular vertebra-shaped fixing portions 126, are prepared to be inserted into the partially stopped narrow holes 111 drilled in the ball. (The partially stopped narrow holes 111 can be formed by piercing the ball part partially through with a carpenter's drill or a nail-shaped rigid member.) Figure 10-7 shows the injection of silicone sealant bond 130 into the semi-sealed narrow hole 111 of the ball part 110-151 (longitudinal cross section) using 131. After injection of 130, a rope-shaped insert part 124 is inserted, and the resulting fixed joint after drying and hardening becomes the soft shuttle shown in Figures 8 and 12.

[0028] Figure 11 shows the state in which the wing part 120 with the completed rubber vertebra-shaped fixing part 126 attached (Figure 10-5) is ready to be inserted into the half-stop small diameter hole 111 opened in the ball part 110 / 151. Silicon bond 130Y is applied to the interface between the rubber vertebra-shaped fixing part 126 and the rope-shaped inserting part 124, and the rubber vertebra-shaped fixing part 126 is inserted into the half-stop small diameter hole 111 opened in the ball part 110 / 151. After drying and hardening, the soft shuttle structure shown in Figures 8 and 12 can be formed.

[0029] "We will use our ingenuity to create various training methods and play a role in nurturing talented badminton players at an early stage." Below we will introduce how young children can play with soft shuttlecocks. The way young children learn is divided into four stages as shown in Table 9. [Table 9] Soft badminton is very easy for young children to accept, and if it is introduced as part of early childhood education in nursery schools, children can unknowingly develop an interest in badminton and develop shuttlecock striking skills while having fun playing.

[0030] The following explains the configuration of the outdoor use soft shuttle section 150 in FIG. To accommodate outdoor environments, two sizes of balls are provided: a 50mm diameter iron improvement line ball "GV-0313" and a 40mm diameter approach improvement training ball "GV-0305." The blade portions 120 of four length sizes are attached to the ball portion 151 as described above, and the blade portions 120 are attached by being inserted into the small diameter holes 111 formed in the ball portion 151. FIG. 12 shows a cross-sectional side view of the ball part 151 of the outdoor shuttlecock part 150 and also shows the blade part 120. The formation of the partially closed narrow hole 111 in the ball portion 151, the formation of the blade portion 120, and the method of attaching the blade to the ball portion are performed as described in the previous paragraphs 0026, 0027, and 0028, and in drawings 9, 10, and 11 (description omitted). Outdoor shuttlecocks are divided into two levels: those that can be formed into a 50mm diameter ball for beginners, and those that can be formed into a 40mm diameter ball for intermediate and advanced players. The sizes of each part that makes up the outdoor soft shuttle are listed in a table (10). [Table 10] It can be configured as an outdoor soft shuttle as shown in the table above.

[0031] The ball portion 151 has a small volume, which reduces air resistance, and high elasticity, which allows for high speed and is less affected by wind. The wing portion 120 is made of organza ribbon, a fabric made from thin fibers such as silk, polyester, nylon, and rayon, and is less affected by wind when wearing a thin figure because it has the characteristic of easily passing through the wind. The Soft Shuttle 150 allows you to practice soft badminton in light winds, soft winds, and Japanese winds. Furthermore, the porous and flexible deformation of the ball portion 151 and the thinness and softness of the belt-shaped ribbon member 120 can reduce the degree of pain and injury caused when it comes into contact with the face of an infant. Furthermore, by providing society with a three-piece set consisting of a badminton and soft badminton racket set suitable for elementary school students to adults, a folding or collapsible outdoor elementary school badminton net pole, and an outdoor soft shuttlecock, we hope to spark an interest in badminton among many children, allowing them to acquire badminton skills while playing, and playing a major role in the spread of badminton.

[0032] The indoor soft badminton competition rules must be strictly adhered to, with the exception of Article 1 of the Badminton Competition Rules, Article 1, Clause 4, Post, Article 2, Shuttlecock, and Article 4, Clause 1, Racket. Due to the high speed of outdoor soft shuttlecocks, it is difficult to return high-speed smashes or pushes without bouncing. Therefore, the outdoor soft badminton rules strictly adhere to the badminton rules, except for the rule that indoor soft badminton rules require the shuttlecock to be returned to the opponent with one bounce (hitting the ground only once), as per the tennis rules. The courts to be used for soft badminton matches and practice will be a six-size badminton competition court for elementary school students, in accordance with the Badminton Competition Rules, Article 1 Court and Court Setup, Figure A, one court for both singles and doubles. [Table 11] With six badminton courts for elementary school students, each individually tailored to the sixth grade of elementary school students listed in the table above, first graders can begin playing formal soft badminton and badminton. Article 1, Paragraph 4, Posts (Net Supports) will add badminton net supports that can be adjusted up and down in 8 steps for elementary and junior high school students, in accordance with the step height rule of 155 cm from the court surface. [Table 12] By adding the eight levels of height net support poles listed above, children of all ages can compete under the same net conditions as adults. Article 2 Shuttlecock The shuttlecock in Article 2 of the Badminton Competition Rules will be changed to a soft badminton shuttlecock. Because the shuttlecock is different, Article 2, paragraphs 1 to 4, and Article 3 will no longer apply, and will therefore be abolished. Article 4 Racket Article 1: The racket frame must be no longer than 680mm in length and no wider than 230mm. In accordance with the internal rules, six new racket sizes will be added for elementary school students: sixth graders: total length 640mm, total width 198mm; fifth graders: total length 605mm, total width 191mm; fourth graders: total length 570mm, total width 184mm; third graders: total length 535mm, total width 177mm; second graders: total length 500mm, total width 170mm; first graders: total length 465mm, total width 163mm, making a total of seven competition racket sizes. In addition, four PP rackets (which can also be made from carbon material) for infants will be added, with four sizes of rackets to suit the developmental stages of infant play: for 5-year-olds: total length 415mm, total width 158mm, for 4-year-olds: total length 365mm, total width 153mm, for 3-year-olds: total length 315mm, total width 148mm, for 2-year-olds: total length 265mm, total width 143mm, for a total of 11 rackets. {Note: Patent application No. 2025-075275 "Name of invention: Badminton and soft badminton racket set suitable for elementary school students to adults" submitted to the Japan Patent Office at 1:31 PM on April 30, 2025 (currently undergoing accelerated examination).} As mentioned above, the addition of six different sizes of rackets to the racket rules to accommodate elementary school students will increase the number of elementary school students who are active in mass badminton and soft badminton.

[0033] In Figure 13, the outdoor soft badminton flight rules are explained. According to the rules of badminton, the shuttlecock from the opponent must be hit back to the opponent without bouncing (without hitting the ground even once). As shown in Figure 13, the shuttlecock 150 is hit by the racket 200, and flies along the badminton flight 201 to the opponent's court. The moment 150 arrives at the opponent's hitting position, the racket 202 hits it back, and the rally can be repeated with alternating hits of the shuttlecock. According to the rules of tennis, the shuttle must bounce once (hit the ground only once) and be returned to the opponent. As shown in Figure 13, the shuttle 150 from the striker racket 300 flies along the tennis flight 301, hits it onto the opponent's court, and the shuttle 150 bounces from the bounce point 302 and is then hit back with the racket 303. Diagram 13 shows a rule that combines the rules of both badminton and tennis, in which the shuttlecock from the opponent does not bounce, and when the shuttlecock is hit back, it bounces once and is hit back to the opponent.

[0034] <About the effects> According to the PP racket set and soft shuttlecock set with the above structure, the four-piece plastic racket set for children aged 2 to 5 uses rackets that fit their physique from an early age, and as they grow, they gradually move on to larger sizes.Smaller rackets are easier to control, but the sweet spot is also smaller, so accuracy is required. Since childhood is a time of nervous system development, playing in an environment that requires greater concentration will help children develop accurate hitting techniques and make them less likely to make hitting errors throughout their lives. In addition, due to its small size, light weight, excellent flexibility and cushioning properties, it will not cause pain to the wrists or elbows of young children, instilling a sense of well-being in young children, drawing out their interest in competitions from play and giving them dreams, and having a positive effect on early gifted education. The soft shuttlecock is characterized by its large, soft, and light sponge ball, which experiences great air resistance and decelerates significantly. Its gentle flight makes it easy for anyone to hit and handle, and it is not scary for young children, and there is no need to worry about pain or injury even if it hits them in the face, so it can be enjoyed safely. It is the perfect toy to get young children interested in badminton before they start kindergarten or at the preschool stage. If a set of soft badminton rackets and soft shuttlecocks is provided as part of early childhood education at each nursery school, it will stimulate young children's interest in the sport while they play, solidify the foundations of badminton at an early age, and have a positive effect on early childhood education and the spread of badminton. The soft badminton equipment racket set and soft shuttlecock set are suitable for young children and are ideal for introducing young children to badminton.

[0035] The development of a child's motor nerve system begins from around the age of two, and this is an extremely important period for cultivating the foundation for forming a lifelong commitment to badminton. Therefore, through direct and concrete experiences such as playing with a soft badminton shuttlecock using a small racket under the guidance of parents at home or teachers at nursery school, children can learn the basic movements of hitting the shuttlecock in accordance with its flight, and by moving their body in response to the moving shuttlecock, they will acquire a variety of movements, and by repeatedly performing these movements, a complex network of various badminton-related neural circuits will be laid out in the body, training their agile reaction nerves and concentration nerves, allowing them to improve quickly and have fun. While playing, it stimulates curiosity and cultivates interest, and helps children develop the basics of hitting the ball according to the shuttle's flight, making it easier for them to master badminton techniques.

[0036] <Summary> From the age of two until they graduate from kindergarten, children can have fun playing with small rackets and soft shuttlecocks, which will help them develop an interest in badminton and help them develop the basics of hitting the ball according to the shuttlecock's flight, making it easier for them to master badminton techniques. First graders start playing soft badminton using rackets that are best suited to their physique (a six-racket set for elementary school students is currently under patent application), a six-level high badminton net, and six sizes of badminton courts. As they grow in age and height, the conditions and environment change, allowing them to perform at the same level as adult players regardless of age, and they gain great confidence as they grow. These things allow children from any family to have the opportunity to be exposed to badminton from an early age, and we can discover talented players from the early grades and develop talented individuals. It will be possible for elementary school students to acquire general badminton skills through soft badminton, which will shorten the training period for future Olympic athletes and have a great effect on developing excellent athletes. It will also make a big step forward in the spread of badminton. By using outdoor soft shuttlecocks to learn outdoor soft badminton, and by using practice equipment at home, you can significantly increase the amount of practice time. Children with big dreams can spend many years practicing as if it were a daily routine, and with practice they can acquire exquisite techniques and astonish the world with their mastery!

[0037] <Modification> Although the embodiment of the present invention has been described above, the present invention can be modified in various other ways, which will be described below.

[0038] In the above-described embodiment, the racket 10 is molded using a mold of a plastic material that has toughness and elasticity. However, the racket 10 may be made of any material as long as it is lightweight and flexible enough to accommodate the physique and physical strength of a developing child. For example, it may be made of carbon material, like current badminton rackets. Alternatively, the club may be manufactured using a lightweight aluminum material or by joining an aluminum shaft to a carbon head. [Industrial Applicability]

[0039] The soft badminton racket set and soft shuttlecock set suitable for infants of the present invention are suitable as play equipment for homes and kindergartens and daycare centers, as they are used at the developmental stage of infant play. [Explanation of symbols]

[0040] W: Front symbol of the racket and its various parts. T: Side symbol of the racket and its various parts. "L: Length. U: Groove depth. Symbols in the table, not used on the drawing." 10 PP racket, 20 head, 21A frame, 21 concave groove, 22 flange, 23 main string section, 24 cross string section, 25 throat, 26 web. 30 shaft portion, 30E shaft tip portion, 30G shaft rear end portion, 31 shaft recessed groove portion, 32 shaft flange portion, 33 web portion. 40 Grip portion, 40C W-side shallow concave half body portion, 40M W-side deep concave half body portion, 41 Shoulder portion, 42 Grip front portion, 43 Grip diagonal surface portion, 44 Grip side portion, 45 End portion, 46 End end surface portion, 47 Joint female pin portion, 48 Joint male pin portion, 49 Grip hollow portion, 50 Reinforcement rail portion of male pin 48, 51 Grip internal reinforcing rail portion, 52 Inner grip tape portion. About indoor soft shuttlecocks 100 soft shuttle, 110 polyurethane sponge ball part, 111 semi-stop thin hole part, 120 ribbon blade part, 121 ribbon member part, 122 thread unraveling prevention part, 123 rope-shaped unraveling prevention part, 124 rope-shaped insertion part, 124F rope-shaped neck part, 125 ribbon member spreading prevention part, 126 rubber vertebra-shaped insertion fixing part, 127 polyethylene fixing part forming mold part, 128 polyethylene fixing part forming mold space part, 130 liquid silicone or silicone sealant bond part, 130Y applied silicone bond part, 131 caulking gun, 132 bent nozzle part, 133 mold part, 134 hollow part of mold. About outdoor soft shuttlecocks 150 Outdoor soft shuttlecock, 151 Ball part, 152 Ring-shaped line part of ball. 200 Hitting racket part, 201 Badminton flight, 202 Returning racket part, 300 Hitting racket part, 301 Tennis flight part, 302 Bounce point, 303 Returning racket.

Claims

1. A soft badminton equipment set suitable for young children, consisting of a racket set and a soft shuttlecock set, In order to stimulate interest in children aged 2 to 5 while playing, the rackets used should be manufactured using polyethylene or polypropylene (PP) materials during the developmental stage of children. As children grow over the course of four years, the size of the racket changes, so the racket is available in four sizes. The approximate sizes corresponding to age are: 2-year-old: total length 265mm, width (head) 143mm; 3-year-old: total length 315mm, width 148mm; 4-year-old: total length 365mm, width 153mm; and 5-year-old: total length 415mm, width 158mm. The indoor soft shuttle is made of four sizes of sponge balls and four sizes of ribbon members with different lengths attached to them. The soft shuttlecock for outdoor use is made of four different sizes of ribbon members attached to two sizes of golf practice balls, A soft badminton equipment set suitable for young children, including a racket set and a soft shuttlecock set.

2. The racket of claim 1, which is made of PP material and has an elliptical head frame made of PP material and formed into an H-shape (cross section) that is light, sturdy, and has excellent durability. The frame portion is made of a PP string to form a vertically and horizontally crossed hitting surface, The PP shaft portion joined to the head frame portion has a thin tip and a thick tail, and is molded into an H-shape (cross section) that is light and has excellent restoring force. The PP octagonal grip joined to the shaft has a cylindrical structure in which two vertical concave halves fit together, The grip is provided with a grip inner grip tape having a flexible cushioning performance wrapped around the grip. A soft badminton equipment set suitable for young children, including a racket set and a soft shuttlecock set.

3. A soft badminton shuttlecock for indoor and outdoor use corresponding to the four age stages of development of young children described in claim 1, which is provided with four sizes of polyurethane sponge (porous) balls: 76 mm diameter for 2-year-olds, 70 mm diameter for 3-year-olds, 60 mm diameter for 4-year-olds, and 50 mm diameter for 5-year-olds, In addition, in order to accommodate outdoor environments, it is equipped with a 50mm diameter iron improvement ball line ball (for golf practice) and a 40mm diameter approach improvement training ball (for golf practice). A thin hole is formed by partially piercing the various balls using a carpenter's drill or a nail-like rigid member, The wing parts are made of a plurality of ribbon (organdy ribbon) members attached to the various balls, and the length of the wing parts can be set to four different length sizes: 180 mm ± 10 mm for 2-year-olds, 160 mm ± 10 mm for 3-year-olds, 140 mm ± 10 mm for 4-year-olds, and 120 mm ± 10 mm for 5-year-olds. A soft badminton equipment set suitable for young children, including a racket set and a soft shuttlecock set.

4. A blade with four lengths and sizes corresponding to four age stages of infants according to claim 1 or claim 3, The blade portion is configured using a plurality of ribbon members that are loosely twisted together at the tip of the blade to form a blade rope-like insertion portion; The ribbon blade is composed of a plurality of ribbon members, which are connected to each other via anti-spread portions, and the anti-spread portions are provided at positions that are half the length of the blade, The tips of the blades are twisted together and a silicone rubber insertion fixing part is provided at the front end of the blade rope-shaped insertion part, The inserting and fixing portion at the front end of the blade rope-shaped inserting portion is inserted and fixed to the center of a sponge sphere with a thin hole, and the band-shaped blade is attached to the sphere via the inserting and fixing portion. A soft badminton equipment set suitable for young children, including a racket set and a soft shuttlecock set.

Images