Ribbon shuttle for badminton practice and in-home badminton practice facility

Abstract

To provide a ribbon shuttle that can be selectively used by beginners and basic-level players, or intermediate players and advanced players, and a flawless in-home badminton practice facility.SOLUTION: There is provided a ribbon shuttle for badminton practice, the ribbon shuttles have three types of feather sizes to accommodate users ranging from beginners to advanced players, a return-ball board for an in-home badminton practice facility employs a gently curved frame section, and is provided with a safety device for preventing the return-ball board from the bad weather such as strong winds, typhoons, or earthquakes in which the internal corners of the joints of nine inclined wall surfaces arranged in upper, middle, and lower, as well as left, center, and right zones are adjusted.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a ribbon shuttlecock for badminton practice and a badminton practice facility for home use.

Background Art

[0002] Regarding the invention of "Badminton Shuttlecock and Badminton Practice Set" registered on November 7, 2014, Patent No. 5643445, A badminton practice shuttlecock is formed by attaching a plurality of strip-shaped feathers to an iron improvement line ball (GV-0313), and a badminton practice set with a concave-shaped return ball board composed of nine inclined wall surfaces with angular shapes. Athletes use a badminton racket to hit the practice shuttlecock towards the return ball board and hit back the shuttled ball that bounces back, having the characteristic of continuous repeated practice. Regarding such a badminton practice set, for example, there is the technical content disclosed in Patent Document 1.

Prior Art Documents

Patent Documents

[0003] Patent No. 5643445

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the badminton shuttlecock of the badminton practice set of Patent No. 5643445 of mine, the name of the invention is incorrect. The badminton shuttlecock is what is usually used in practice and matches according to badminton rules. There is a problem with claiming the name of the badminton shuttlecock. Also, there is a rough explanation that the width and length of the strip-shaped feathers of the shuttlecock affect the speed. However, among badminton enthusiasts and players, there are beginners, junior players, intermediate players, and advanced players. Beginners and junior players cannot use the same speed shuttlecocks because they lack techniques and are at the basic and elementary levels. There is a problem that it is quite difficult for them to return a fast-speed shuttlecock. In addition, advanced players need ultra-high-speed shuttlecocks to pursue excellent skills and physically super-fast reflex nerves.

[0005] Also, in paragraph 0028 of the specification of my Patent No. 5643445, there is a problem that the insertion part 32 formed by the method of bundling the tip side of the belt-like member 31 and then fixing it with an adhesive may be pulled out from the ball part because it is in a straight shape.

[0006] Furthermore, in paragraph 0032 of the specification of the application filed on January 15, 2014, there is a case where the anti-spreading part 33 described is located at a position about 40 mm away from the other end side where the position of the anti-spreading part 33 is separated from the insertion fixing part 32. If the total length of the belt-like member 31 is about 85 mm, the position of 33 is about the middle position, so there is no problem. However, in order to reduce the speed of the shuttlecock, it is necessary to use a long belt-like member. For example, beginner children need a shuttlecock belt of 120 mm to 140 mm. Therefore, the spreading part behind the position of the anti-spreading part 33 is too long. When the shuttlecock collides with the return wall surface at the moment of the U-turn, the belt-like member of the spreading part winds around the shuttlecock ball part, and there is a problem that the shuttlecock does not bounce back to the desired position due to a U-turn mistake.

[0007] Regarding the return board of the badminton practice set of my Patent No. 5643445, Regarding the nine concave return boards each with an inclined wall surface structure of an angular shape, in order to make the wall surface concave, nine wall surfaces are installed in three horizontal rows and three vertical levels. The outer edges of the side wall surfaces of the horizontal rows slope forward, the upper wall surface of the vertical levels is slightly inclined forward, and the lower wall surface is greatly upward-facing. In this way, a concave return board is formed. However, the outer edges of the walls other than the central wall surface are inclined forward toward the center, forming an inner corner at the joint of the wall surfaces. For example, in the case of a horizontal row, the inner corners of the joints on both sides of the intermediate row wall surface are formed to be approximately 165 degrees or so, and in the case of upper and lower levels, they are formed to be approximately 150 degrees or so. When the shuttlecock hit by the practitioner hits the inner corner of the joint seam, it cannot make a U-turn properly and the speed of the rebounded shuttlecock drops. Or, no matter which of the two inclined wall surfaces it hits strongly, it will be bounced in the opposite direction and there is a problem that it will not bounce back to the desired position.

[0008] In addition, the return board of the badminton practice set is installed in the yard, and there is a risk that it will be blown down by strong winds. Therefore, safety measures are required. Furthermore, when the return board made of wood is installed outdoors, it should be considered that it will be deformed or decayed when it gets wet in the rain. Therefore, measures such as waterproof painting are required. For example, even when it is formed of a metal or plastic material, all-weather measures are required.

[0009] In view of the above problems in the badminton practice set, such as the inability to distinguish the shuttlecock speed for beginners, intermediate players, and advanced players, the position of the preventing part for the spread of the strip-shaped feathers, and the design mistake in forming the inner corner of the joint seam between the return board walls, there is a problem that the desired practice effect cannot be achieved for players of each level. Furthermore, there is also a problem that the return board cannot be used outdoors for a long time because safety and weather countermeasures are not taken.

[0010] The present invention has been made based on the above circumstances, and its object is to correct the drawbacks and design mistakes of the badminton shuttlecock and the badminton practice set of my Patent No. 5643445 and take safety measures. It is intended to provide a badminton practice ribbon shuttlecock and a home badminton practice facility that anyone can use.

Means for Solving the Problems

[0011] In order to solve the above problems, according to the first aspect of the present invention, A ribbon shuttlecock for badminton practice with ribbon blades attached to the ball part. The ribbon-shaped blades of the shuttlecock are made of commercially available organza ribbon, which is transparent, easy to vent air, light, and soft, so that the shuttlecock is prone to U-turn at the moment of collision with the return board. Regarding the ribbon blades, for use in a ribbon shuttlecock for badminton practice from beginners to advanced players, the speed is adjusted by the length and width of the ribbon member of the shuttlecock blade. For beginners and elementary players, the ribbon width of the shuttlecock blade is 17 - 19 mm, and the length is a ribbon member of 120 - 140 mm. For intermediate players, the ribbon width of the shuttlecock blade is 15 - 17 mm, and the length is a ribbon member of 100 - 120 mm. For advanced players, the ribbon width of the shuttlecock blade is 13 - 15 mm, and the length is a ribbon member of 70 - 100 mm. Three types of blade sizes are provided from beginners to advanced players. The blade part is formed by twisting the tips of the blades composed of a plurality of ribbon members into a single cord-like insertion part. The ribbon blades are composed of a plurality of ribbon members, and these ribbon members are connected via a spreading prevention part so as not to spread with each other. The position where the spreading prevention part is provided is installed at the position of 1 / 2 of the blade length respectively. It can be configured as the ribbon blade of the ribbon shuttlecock characterized by this.

[0012] The blade part is attached to the sphere via an insertion fixing part. This insertion fixing part is formed into a double boat shape (semicircular pipe) using a plastic material. A thread part is provided around the outer circumference. A bending part (serving as a hinge) is provided to fit the double boat shapes together. A space part for fitting the cord-like insertion part at the tip of the blade is provided. A retaining guard part for the cord-like insertion part at the tip of the blade is provided. A pin part for locking the assembled double boat-shaped body is provided. A hole part for receiving and stopping the locking pin is provided. By having these, the insertion fixing part is configured. When the ribbon blade part is configured by inserting and fixing the cord-like insertion part at the tip of the blade into the insertion and fixing part, when the insertion and fixing part at the tip of the ribbon blade part is inserted and fixed into the ball part, A badminton practice ribbon shuttlecock is provided, which is characterized in that.

[0013] According to a second aspect of the present invention, there is provided a home badminton practice facility including the above-mentioned badminton practice shuttlecock and a return ball board for hitting back the shuttlecock. The return ball board uses a gentle curve frame part, and by trimming the inner corners of the joints on the inclined wall surfaces of each of the nine sheets in the upper, middle, lower, left, middle, and right directions, a gentle concave-shaped return ball board configuration can be achieved. A home badminton practice facility is provided, which is characterized in that.

[0014] When the return ball board of the above-mentioned home badminton practice facility is applied and is made to be weatherproof by painting, When a safety device is provided to protect the return ball board from strong winds, typhoons, earthquakes and other bad weather, A safe home badminton practice facility is provided, which is characterized in that.

Effect of the Invention

[0015] According to the present invention, it remedies the design mistakes and deficiencies of my Patent No. 5643445, the shuttlecock of badminton and the badminton practice set, and provides a perfect badminton practice ribbon shuttlecock and a home badminton practice facility.

Brief Description of the Drawings

[0016] <The scale of the four drawings of the shuttlecock is 1 / 1. The scale of FIG. 12 of the return ball board is set to 1 / 3 to represent a high and far flight, and the scale is set to 1 / 2 from FIGS. 1 to 11.>

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0017] Hereinafter, the badminton practice ribbon shuttlecock 10 and the badminton practice equipment according to an embodiment of the present invention will be described with reference to the drawings. The badminton practice equipment has a ribbon shuttlecock 10 and a return board 100. In the following description, first, the shuttlecock 10 will be described, and then the return board 100 will be described. <<The various embodiments and technologies of my Patent No. 5643445 are to be used as they are without problems. The implementation description for this time is omitted. In this embodiment, the deficiencies and design mistakes in Patent No. 5643445 are to be rectified and explained.>>

[0018] <Regarding the configuration of the shuttle 10> Figure 1 is a completed view of the ribbon shuttle 10. Figure 2 is a view showing the ribbon blades. Figure 3 is a view showing the cord-like insertion part. Figure 4 is the insertion and fixing part of the blades. Based on these four figures, the configuration of the shuttle 10 will be explained. Figure 1 is a side view showing the configuration of the shuttle 10. As shown in Figure 1, the ribbon shuttle 10 has a ball part 20, a blade part 30, and an insertion and fixing part 35 for the blades. (Regarding the performance and types of use of the ball, since there are detailed explanations in paragraphs 0019 to 0023 of the specification of the previous Patent No. 5643445, it is omitted.)

[0019] <Briefly explain the mechanism of the shuttle 10 configuration in Figure 1. In this embodiment, as shown in Figure 1, the blade part 30 is attached to the ball 20 part of the shuttle 10 via the insertion and fixing part 35 for the blades. 20 is the ball {product name "Iron Improvement Ball (Line Ball)"} part, 21 is the ring-shaped line provided by the manufacturer, 30 is the blade part, 31 is a plurality of belt-shaped ribbon members constituting the blade part, 32 is a thin cord-shaped insertion part formed by twisting the tips of the ribbon members 31, 33 is a part for preventing the ribbons 31 from spreading apart from each other, and 34 is a part for preventing the cord-shaped insertion part from untwisting. The blade part 30 is provided with an insertion part 32. The shuttle 10 is formed by fitting 32 into the insertion and fixing part 35 (shown in Figure 2) and then rotating and inserting it into the semi-through hole 22 with a stop opened in the ball 20 for fixing.

[0020] <Explain the configuration of the blade part 30 in Figure 2> The number 22 not shown in Figure 1 is the semi-through hole part with a stop opened in the ball 20, 35 is the insertion and fixing part for the blades, and 36 is the threaded part attached to 35. In the ball part 20 shown in Fig. 1, a stop hole 22 is opened in the ball part 20 for inserting the insertion fixing part 35 at the tip of the wing part 30, and it is preferable that the diameter of this stop hole 22 is made narrower by the insertion fixing part 35. The shuttle 10 is formed by inserting and fixing 30 to 20 through 35. A strip-shaped woven ribbon can be used to form the wing part 30 of the shuttle 10, but among the many types of ribbons available on the market, a thick one with a high weaving density has a large air resistance and is heavy, so it is not preferable because it slows down the speed of the shuttle 10. By the way, organdy ribbon is a soft and delicate woven fabric with a transparent feel, and is thin, light, or has a low weaving density, so it is transparent and easy to pass air through, so the speed does not slow down, and because this ribbon is the optimal material, the shuttle 10 is named ribbon shuttle 10. The wing portion 30 is composed of a plurality of organza ribbon members 31, and the plurality of ribbon members 31 are provided with anti-spreading portions 33, which may be located at a position half the length of the wing portion 30. At the tip of the plurality of ribbon members 31, a thin rope-shaped insertion portion 32 is formed by twisting together at an appropriate length, and this rope-shaped insertion portion 32 is engaged with an insertion fixing portion 35 and fixed in the ball portion 20 by a screw thread portion 36 with 35.

[0021] The component of the wing part 30 is organza ribbon, and its length and width affect the speed of the ribbon shuttle 10. However, in order to accommodate beginners, intermediate users, and advanced users, the speed can be adjusted by the length and width of the ribbon member 31. The width of the ribbon member 31 of the wing part 30 used by beginners and beginners is 17-19 mm, and the length is 120-140 mm, so that the speed of the ribbon shuttle 10 can be significantly reduced. The width of the ribbon member 31 of the wing part 30 used by intermediate users is 15-17 mm, and the length is 100-120 mm, so that the speed of the shuttle 10 can be slightly reduced. The width of the ribbon member 31 of the upper-level user blade part 30 shall be 13 - 15 mm, and the length shall be 70 - 100 mm. The speed of the shuttlecock 10 is slightly faster than that of the shuttlecock 10 during an actual badminton game. If upper-level players want to be even stronger, they can use a ball without feathers to achieve a considerably higher speed. The above-described length is the size of the blade part 30. Since the tips of the plurality of ribbon members 31 are twisted together in a cord shape and shortened after synthesis, it is desirable to cut them longer according to the length of the blade part 30. Also, since the organza ribbon is thin, has a low weaving density, and is thin, if it is cut and left as it is, it will come apart, so fraying prevention treatment is necessary. If you are careless, the ends will become loose in an instant. Therefore, what is useful here is the "fraying prevention liquid for cloth". Apply it to the part you want to cut, and when it dries, cut it, and it will finish neatly. Also, you may use a lock sewing machine or an instant adhesive for fraying prevention treatment.

[0022] <Explaining the formation of the cord-shaped insertion part in FIG. 3> The length of the cord-shaped insertion part 32 formed by twisting the tips of the plurality of ribbon members 31 is set to be longer than half of the center line of the ball part 20, and unraveling prevention parts 34 are provided at both ends of the cord-shaped insertion part 32. In the present invention, the shuttlecock 10 blade part 30 is described as a configuration example using 3 ribbon members 31. However, since the thickness of this twisted cord-shaped insertion part 32 changes according to the number of 31, for example, when using 5 pieces, it is necessary to change the thickness of the insertion fixing part 35 at the same ratio. Insert this cord-shaped insertion part into the insertion fixing part 35 as shown in the drawing. (The details of 35 will be described in FIG. 4.) 35 is provided with a thread groove part 36 on the outer periphery, and it is turned and inserted into the stop hole part 22 opened in the ball 20 using the thread groove part 36 and fixed by the thread groove part 36. This cord-shaped insertion part 32 is not twisted tightly but, as shown in FIG. 1, the length of the part 32 that does not enter the ball 20 is about 10 mm. This part requires a loose cord-shaped insertion part 32 in order for the shuttlecock 10 to make a good U-turn at the moment of collision with the return ball board.

[0023] <Explaining the structure of the insertion fixing part 35 in FIG. 4> 35 is the insertion and fixing part, 36 is the threaded part for screwing in, 37 is the double-sided boat-shaped (semicircular pipe) part, 38 is the bent part of the double-sided boat shape (serving as a hinge), 39 is the space part for fitting the insertion part, 40 is the blade removal guard part, 41 is the pin part for fitting and fixing the double-sided boat shape, 42 is the hole part for receiving and stopping the pin 41 for fixing. As shown in FIGS. 1 and 2, the blade part 30 is attached to the ball part 20 via the insertion and fixing part 35. This insertion and fixing part 35 is suitable for use with plastic materials and the like, and can be formed by various methods such as compression molding and vacuum molding using a mold. At the same time, a threaded part 51 is formed around the outer circumference. To easily fit the insertion part 32 of the blade part 30, a construction method of fitting the double-sided boat-shaped (semicircular pipe) is cited, so that the double-sided boat-shaped part 37 can be formed. As shown in the drawing, it has a double-sided semicircular pipe shape. For connecting the double-sided boat-shaped part 37, bending parts 38 (hinges) are provided at the front end and the rear end. When the double-sided boat-shaped parts 37 are combined, a space part 39 for fitting the opaque cylindrical insertion part 32 is formed. To fix the insertion part 32, three blade removal guard parts 40 are provided in 39. To firmly fit the double-sided boat-shaped parts 37, pin parts 41 for fixing are provided at the front end and the rear end of one of the 37s, and hole parts 42 for receiving and stopping the pins for fixing are provided at both ends of the other 37. Thus, the insertion and fixing part 35 is formed as described above.

[0024] The insertion and fixing part 35 with such a structure is inserted into the space part 39 up to the tip of the rope-shaped insertion part 32, the double-sided boat-shaped parts 37 are sandwiched and pressed with fingers, the pin part 41 for fixing enters into the hole part 42 for receiving and stopping the pin for fixing with a click and fits together, and the three blade removal guard parts 40 in 42 firmly fix the rope-shaped insertion part 32. To fit the tip cord-like insertion part 32 of the blade part 30, it is not necessary to use an adhesive or bond. The bent part 38 can be opened, closed, or is difficult to break due to the flexibility and strong toughness of the plastic. The blade stopper guard part 40 is set higher than the inner diameter of the space part 39, and can firmly fix the cord-like insertion part 32 accordingly. The double-sided boat-shaped parts 37 are integrally inserted and fixed by snapping 41 and 42. The blade part can be attached to the ball part by the thread part 36, and can be configured as the badminton practice ribbon shuttlecock 10. Such a construction method is very convenient. For example, in the case of blade part damage, loosen it by turning the threaded part 36 of the insertion fixing part 35 counterclockwise, open the double-sided boat-shaped parts 37, replace the blade part 30, fit the double-sided boat-shaped parts 37, turn the insertion fixing part 35 clockwise, and the threaded part 36 is inserted and fixed into the ball part 20, and it can be easily replaced.

[0025] <Explaining the structure of the return ball board 100 in six drawings> Subsequently, the return ball board 100 that constitutes the return ball board of the home badminton practice equipment is used together with the above-mentioned shuttlecock 10 when the user practices badminton. The return ball board 100 has a framework part 110, a safety device part 120, a board wall surface part 130, and a gentle curve part 140. The return ball board 100 will be described in the following order.

[0026] <Overview of the structure of the return ball board 100> The framework part 110 includes two pedestals 111 for the base of the facility, one on each side (left and right); a large connecting part 112 for connecting the left and right pedestals; two vertical columns 113, one on each side (left and right); two vertical fixing frames 114 for the central lower wall surface 131, one on each side (left and right) (since the central wall surface 132 is fixed to the front plane of the vertical column 113, no fixing frame is required); two vertical fixing frames 114 for the central upper wall surface 113, one on each side (left and right); two auxiliary frames 115, one on each side (left and right); six horizontal fixing frame parts 116 in three upper and lower rows for the central wall surface in the horizontal direction, and four 116W (widely provided by 116); three horizontal fixing frame parts 116 on each of the left and right side wall surfaces in the horizontal direction, and four 116W on each of the left and right sides (widely provided by 116); six vertical fixing frames 117 on each of the left and right side wall surfaces, three on each side, for a total of six; and two reinforcing brackets 118 for the joints of the left and right side wall surfaces, two on each side. The safety device part 120 includes two safety columns 121, one on each side (left and right); two fittings 122 for the safety columns 121, one on each side (left and right); and two ground fixing parts 133 for the safety columns 121, one on each side (left and right). The board wall surface part 130 is composed of inclined wall surfaces in three rows (left, middle, and right) and three levels (upper, middle, and lower), with nine sheets. The central row includes three wall surface parts 131, 132, and 133 from the bottom, and the left and right row wall surfaces include six wall surface parts, two 134, two 135, and two 136 from the bottom. The gentle curve part 140 includes six horizontal gentle curve frame parts 141 for the joints of the upper, middle, and lower three-level wall surfaces, and six vertical frame parts 142 for the gentle curves of the joints of the left, middle, and right three-column wall surfaces. As fixing means, the mortise method, hexagonal coach screws T, and course threads Y can be used for ports, etc. The above-described members can constitute the return ball board.

[0027] <Explain the configuration of the fixing frames of the wall surfaces on both sides together with the configuration of the central framework of the return ball board in FIGS. 5, 6, 7, 8, and 9.> First, starting from the framework part in FIG. 5 for housing construction, Since the framework part 110 is the basic part of the return ball board 100, it is built from the lower part of the center of the board part and two pedestals 111 for the base are installed on the ground in the longitudinal axis direction of the pedestals, one on each side (left and right), in the front-rear direction, below the left and right ends of the central wall surface of the board wall surface part 130. As shown in FIG. 6, at the rear ends of both pedestal portions 111, there are provided a through-tenon hole 112U for connecting the left and right pedestals with a large draw for connection, a receiving and fixing groove 113U for the through-column 113, and at the front end, a receiving and fixing groove 114U for the vertically inclined fixing frame of the lower wall surface. The tenons processed at both ends of the large draw portion 112 for connection are inserted and fixed into the through-tenon holes 112U of the left and right pedestals. Insert the through-column portion 113 into the receiving and fixing groove 113U of the through-column portion 113, make it flat with the outside of the through-column 113 and the outside of the pedestal, and fix it using a hexagonal coach screw T. The inclination of the two left and right through-columns 113 is slightly upward. This inclination is also the same as the inclination angles of the middle three rows of wall surfaces 135·132·135 of the ball-return board.

[0028] Still, as shown in FIG. 7, insert the vertically fixed frame portion 114 of the lower wall surface into the fixing groove 114U at the front end of both pedestal portions 111, which constitutes the left and right upper and lower two triangular truss structure supports by the left and right pedestals and the through-column portion, and fix it using a hexagonal coach screw T. At the upper end of 114, it is fixed to the plane of the obliquely shaped through-column with a perfect tenon joint construction method or a course thread Y (not shown). The lower end of 114 is processed flat along the bottom surface of the pedestal 131, and the lower triangular truss is formed. The vertices of the left and right inner angles formed by joining the upper ends of the left and right 114 and the plane of the through-column 113 are the boundary line between the wall surface portion 131 and the wall surface portion 132. From this boundary line upward, the position of the wall surface 132, the vertically fixed frame 114 of the upper wall surface 133 from the upper edge of 132 is attached to the through-column, and fixed by a tenon joint construction method or a course thread Y (not shown), etc. 114 is set to have a slightly forward-leaning inclination. The upper ends of the through-column 113 and 114 are connected and fixed by a tenon joint construction method using the auxiliary frame portion 115. The central wall surface 132 does not require a vertically fixed frame for fixing to the front plane of the through-column 113. The left and right two upper and lower triangular truss structure supports are formed. This shape can be confirmed in FIG. 7.

[0029] Figure 7 shows the shape of the upper and lower triangular truss structure supports, and also shows the formation of the 116U and 116UW fixing grooves and the installation of the horizontal fixing frames. Figure 7-1 is an enlarged longitudinal sectional view showing the curved frames, fixing frames, and the fixing structure of the wall surface at the two joints of the upper and lower three-stage wall surface joints. Figure 7-2 is a sectional view showing the enlarged sectional shape of the gently curved frame portions 141 and 142 at the joints of the wall surface. In terms of the shape, a gentle curve is formed on the front surface, and the back surface is formed in an obtuse angle shape like a mountain ridge. As shown in Figure 7, on the front surfaces of the left and right truss structure supports, six 116U fixing grooves for the central wall surface horizontal fixing frame are provided from the lower end to the upper end, and four 116WU (widely provided by 116U) are provided.

[0030] <Explain the arrangement order of the wall fixing frames> For fixing the lower wall surface 131, the truss structure support is made by cutting four fixing grooves, three 116U and one 116UW, at equal intervals in the left and right vertical fixing frames 114. For fixing the middle wall surface 132, it is made by cutting three fixing grooves, one 116U and two 116UW, at equal intervals on the plane in front of the left and right through columns. For fixing the upper wall surface 133, it is made by cutting three fixing grooves, two 116U and one 116UW, at equal intervals in the left and right fixing frame parts 114. As shown in Figures 5 and 7, six wall fixing frames 116 are fixed in the six 116U grooves numbered 1st, 2nd, 3rd, 6th, 9th, and 10th from the bottom of the lower stage. As shown in Figures 7 and 7-1, two wall fixing frames 116W are fixed in the two 116WU grooves at the inner corners (positions 4th and 5th) where the frame 114 is attached to the through column 113. Also, as shown in Figure 7, two frames 116W are horizontally fixed in the 116WU groove at the joint of the upper fixing frame 114 and the through column. In this way, the left and right truss structure supports are connected using the horizontal fixing frames.

[0031] <The following constitutes the vertical fixing frame of the site wall on both sides of the truss structure support in Figures 5 and 8.> First, as shown in FIG. 5, when vertical fixing frames 117 for the left and right lower side wall surfaces 134 are attached to the outside of the frame part 114 that vertically fixes the lower wall surface 131 of the central column, When vertical fixing frames 117 for the side wall surfaces 135 are attached to the outside of the through-column 113 that fixes the middle wall surface 132 of the central column, Vertical fixing frames 117 for the side wall surfaces 136 are attached to the outside of the frame 114 that vertically fixes the upper wall surface 133 of the central column. In all three stages, as shown in FIG. 8-1, they are fixed using hexagonal coach screws T. Fixing with ports may also be possible. Due to the shape of the trapezoid with unequal side lengths of the cross-section of the vertical fixing frames 117 for the side wall surfaces, the inner angles on the left and right sides are formed. The shape of this inner angle can be confirmed in FIG. 8-1. Due to this shape, the outer edges of the left and right side wall surfaces of the central column wall surface can be inclined forward. Also, as shown in FIG. 5, two horizontal fixing frames 116 for both side wall surfaces are provided at the lower end and the middle position of the lower vertical fixing frame 117. Two horizontal fixing frames 116W for both side wall surfaces are provided at the joint between the lower vertical fixing frame 117 and the middle vertical fixing frame 117. Two horizontal fixing frames 116W for both side wall surfaces are provided at the joint between the middle vertical fixing frame 117 and the upper vertical fixing frame 117, and two horizontal fixing frames 116 for both side wall surfaces are provided at the upper end of 117. Grooves 116U and 116UW corresponding to the positions where the horizontal fixing frames are attached to the vertical fixing frames 117 of the above-mentioned site wall surfaces are provided (not shown). As shown in FIG. 8, the horizontal fixing frame for the central column wall surface and the horizontal fixing frames for both side wall surfaces are connected and fixed, and due to the trapezoid shape with unequal side lengths of the vertical fixing frames 117, the outer edges on both sides are formed in an arcuate shape so as to slope forward. Up to this point, the framework structure of the backboard can be formed. Each framework member of the backboard is not limited to wood, and light metals or plastics may also be used.

[0032] <In FIGS. 5, 7, 8, and 9, nine wall surfaces are attached to the framework of the backboard.> The return ball board wall surface 130 is a return ball board wall surface for practicing as if hitting back the rebounded shuttlecock 10 by hitting the ribbon shuttlecock 10 towards each wall surface of 130 using a racket. This 130 is a concave return ball wall surface portion composed of upper, middle, and lower three-stage wall surfaces and nine inclined wall surfaces in three columns of left, middle, and right to correspond to the flights of various basic shots in badminton. In Figure 9, to explain the arrangement of the nine wall surfaces, first, the lower wall surface portion 131 in the central column is installed with a large upward inclination, the central wall surface portion 132 is installed with a slightly upward inclination above 131, and the upper wall surface 133 is installed with a slightly forward-downward inclination above 132. Regarding the six inclined wall surfaces on both the left and right sides, the lower side wall surface portions 134 on both sides are installed with the same inclination as 131, the middle-stage side wall surfaces 135 on both sides are installed with the same inclination as 132, and the upper-stage side wall surfaces 136 on both sides are installed with the same inclination as 133. The outer edge of each of the wall surfaces on both sides slopes slightly forward obliquely, enabling the formation of the concave return ball wall surface portion 130.

[0033] <Using the gentle curve portion 140 to join, paste, and fix the nine wall surfaces> First, paste the three-stage wall surfaces in the central column. As shown in Figures 9 and 7, align and fix the obtuse angle on the back of the horizontally gentle curve frame 141 with the inner angle formed by the two 116W at the upper end of 114 and the joint of the through column 113. Paste the wall surface 131 below 141 and the wall surface 132 above 141. Align and fix the obtuse angle of 141 with the inner angle formed by the two 116W above the wall surface 132, and paste the wall surface 133 above. Then, when fixing each wall surface to the ten horizontal fixing frames using the course thread Y, the pasting of the three-stage wall surfaces in the central column can be completed.

[0034] <In Figures 8 and 9, paste and fix the wall surfaces on both sides> On both left and right sides of the left and right truss supports where the central row of three-tiered wall surfaces are attached, gently curved vertical frame parts 142 for the joints between the upper, middle, and lower wall surfaces are added. One each is added to the left and right, matching the length of 142 to the widths of wall surfaces 131, 132, and 133. They are fixed at the inner corners of the joints of the three vertical frames 117, the through-column 113, and the two frames 114, aligning with the obtuse angles of 142. Six curved vertical frame parts 142 are attached to both left and right sides of the central row of three wall surfaces. At the joint of the lower vertical fixing frame 117 and the middle vertical fixing frame 117 implemented in paragraph 0031, two horizontal fixing frames 116W are provided. The obtuse angle of the curved frame 141 is aligned and fixed at the formed inner angle. Wall surface 134 is attached below 141, and wall surface 135 is attached above 141. Also, at the joint of the middle vertical fixing frame 117 and the upper vertical fixing frame 117, two horizontal fixing frames 116W are provided. The curved frame 141 is aligned and fixed at the formed inner angle, and wall surface 136 is attached. Each wall surface is fixed to the horizontal wall surface fixing frame part and the front of the through-column using the course thread Y. Also, at the outer edges of the joints at four locations on both side wall surfaces, reinforcing brackets 118 for wall surface joints are used for fixing, forming fairly strong both side wall surfaces. Using the gently curved frame part 140, a gently concave-shaped return ball board wall surface part 130 can be formed by connecting nine wall surfaces with different inclination angles. As shown in the 5x enlarged view 9-1, the cross intersection of the horizontal and vertical 140 part frames is in a gently dish shape. The ball part 20 of the shuttle 10 is placed in the same 5x enlarged figure at this dish-shaped intersection, explaining that when the shuttle 10 collides with a gentle curve, it can make a successful U-turn without being an obstacle. The widths of the horizontal and vertical 140 frame parts can be twice the diameter of the ball part 20 of the shuttle 10. Also, for all-weather use, since the badminton practice equipment is installed in the yard, it is likely to rain or be windy frequently. Therefore, the entire backboard is coated with waterproof paint. For the convenience of the practitioners, the color of the backboard wall is preferably a color such as black or gray, which is the opposite color of the white of the shuttlecock 10. A white net line R with a width of 4 cm is provided horizontally at about the middle of the central row wall 131 at a height of 152 cm from the ground (inside the wall surface 132). This is the net line for practicing services, hairpins, drives, etc.

[0035] Regarding the method of gently rounding the inner corners of the joints of the nine-wall surfaces, it is not limited to using a gentle curve frame. For example, it can also be done by mixing wood powder and wood putty for wood repair and applying it, or pasting a metal mesh and applying cement. As long as the surface of the wall is smooth, hard, and can bounce back the shuttlecock 10 and the ball well, any material can be used. Regarding the material of the wall surface, any material can be used as long as the surface is smooth, hard, and can bounce back the shuttlecock 10 and the ball well. As such a plate-like member, a squash court wall panel (recently, at JSM Co., Ltd., a wall panel for squash courts, a panel three times larger than the conventional plate, has appeared) is preferable. However, for example, painted composite panels, plastic plates, can also be made using wood plates, metal plates, cement, etc.

[0036] <Implement safety measures for the backboard 100> As described above, each part of the backboard 100 is assembled and completed. In Japan, due to the marine climate with frequent typhoons and strong winds, safety measures are implemented to prevent the return ball board from being blown away. As shown in Figure 5, a safety measure section 140 is provided behind the return ball board. At the upper ends of two metal pipe-shaped safety struts 121, a strut attachment fixing fitting 122 is used to attach to the upper ends of the left and right through columns 113 of the return ball board. When the lower end of the left safety strut 121 is obliquely attached to the ground towards the left rear of the return ball board, and the lower part of the right safety strut 121 is obliquely attached to the ground towards the right rear of the return ball board, the lower ends of both safety struts 121 are fixed using cement. Fixing the lower ends of the struts not only exerts a supporting force but also a pulling force. It can be used with confidence as it will not sway in the wind from either direction.

[0037] <Explain the inclination of each stage and each row wall surface of the return ball board in Figure 10> The purpose of the present invention is to enable a person to practice the basic shots of badminton at home during free time. As everyone knows, a partner is required for badminton practice. To serve as a practice partner, a return ball board is provided with nine inclined wall surfaces in three columns (left, middle, and right) and three stages (lower, middle, and upper), as shown in Figure 10, forming a concave-shaped return ball board wall surface. Explain the basic badminton shots that can be practiced based on the drawing design inclination of each stage and each row wall surface. Regarding the lower wall surface 131 shown in Figure 10-1, to correspond to the flight of hitting straight down from a high smash point, the inclination of the left, middle, and right wall surfaces in the lower stage is provided at approximately 52.5 degrees with respect to the horizontal plane, sloping greatly upwards. This angle allows for practicing smashes and drops where the shuttlecock 10 is bounced high and far. Also, if hit lightly, it can be used for practicing pushes. In the continuous smash practice, if the practitioner strikes forcefully towards 131, the shuttlecock 10 will bounce high and far. If it is gently dropped, it can also be used for drop practice. Once the shuttlecock 10 is launched, quickly push it strongly towards 131 near the wall surface in front at a high speed to make the shuttlecock 10 fly high and far, then quickly back to the original position, and freely convert to a drop or smash. When doing a drop, it is possible to practice alternating drops while practicing the front and back footwork. If the practitioner strikes gently at a distance slightly closer to the wall surface, continuous push practice can be carried out. By freely controlling strongly, weakly, to the left, and to the right, and changing the hitting position in the front, back, left, and right directions, more agile footwork can be trained, and the accuracy of hitting the ball can also be improved. Especially when aiming at the left and right wall surfaces 134 at any position, when the shuttlecock 10 returns, its flight will be significantly changed left and right, forcing the practitioner to move long distances left and right, thus training physical strength and endurance.

[0038] Also, the inclination of the middle upper left, middle, and right wall surfaces is not vertical but slightly upward, set at 83 degrees with respect to the horizontal plane. The reason for this angle is, for example, in the case of a vertical wall surface, when hitting the shuttlecock 10 in a parallel drive shot right at the net, the shuttlecock will bounce back slightly diagonally and lower, making it difficult to perform the next standard parallel drive shot continuously and thus unable to practice continuously. A wall surface with a slightly upward angle is required for the shuttlecock to bounce back parallel. This upward-facing wall surface can also be used for shot serve, driven serve practice, and continuous hairpin practice. When the practitioner hits a shot serve above the horizontal net line of the 132 wall surface and drops the return ball with a hairpin to the left or right parallel to the middle three rows of wall surfaces near the net line, and alternately drops it to the right or left, continuous hairpin practice can be carried out. When hitting a driven serve above the net line and hitting back the bounced shuttlecock 10 with a drive, by turning the face of the racket to the left or right and aiming at any point within the width of the middle three rows of wall surfaces, it is possible to polish the hitting skills while practicing wide left and right footwork.

[0039] Also, the inclination of the upper wall surface 133 is set at 107 degrees with respect to the horizontal plane, slightly sloping forward. Backhand receiving practice can be done for smashes, drops, and push returns. Also, if you aim at the upper part of the wall surface 133 with a high and far shot from a distance, you can practice high clears. Although continuous high clear practice is not possible, you can quickly return the shuttlecock 10 that has fallen forward to the upper wall surface with a backhand lob, strongly push the rebounded shuttlecock 10 to the lower wall surface 131 to fly high and far, and quickly perform a high clear again to the falling point of the rear shuttlecock 10. The front and rear footwork can also be trained. Or, you can aim at the middle of the wall surface 133 and practice hitting driven clears, quickly advancing and receiving and repeating the return.

[0040] <In FIGS. 11 and 12, A is the flight of the shuttlecock hit by the practitioner, and V is the flight rebounded from the wall surface> The bow-shaped plan view seen from above in FIG. 10, as shown in the middle section omitting the upper and lower sections, has the outer edges of the side wall surfaces 135 on both sides inclined forward by 15 degrees with respect to the width direction of the central row wall surface 132. The angles of the inner corners on both sides are 165 degrees. The reason for the forward inclination of the outer edges of these side wall surfaces is that, for example, a shuttlecock 10 that has collided straight from the orthogonal direction at the end of a straight wall surface returns to its original position (not shown) in the orthogonal direction. As shown in FIG. 11, the practitioner hits the shuttlecock 10 from the direction perpendicular to the front of the central wall surface towards the wall surface 135, collides with the wall surface 135 and makes a U-turn like a 1A flight, and bounces back in the opposite middle direction at the same angle with respect to the wall surface as shown by the 1V flight. The practitioner quickly moves the hitting position to the right and hits back the shuttlecock 10 aiming at the central point of the wall surface 132 like a 2A flight, bounces back slightly to the right like a 2V flight, quickly moves to the right and hits the shuttlecock 10. The shuttlecock collides with the wall surface 135 in the direction of the 3A flight, and the U-turn shuttlecock returns in the direction perpendicular to the central wall surface along the 3V flight, and the practitioner hits it back at this hitting position. The shuttlecock collides with a gentle curve 142 as shown by the 4A flight, and returns to the central position as shown by the 4V flight after making a U-turn. The practitioner turns the face of the racket to the left front and hits back the shuttlecock 10 in the direction shown by the 5A flight. If the above practice of repeating the 4-round drive practice is carried out, the left and right footwork can be trained, and the accuracy of hitting the ball and the sense of badminton rhythm when hitting the ball while running can also be acquired, and the technique of switching the racket face at the moment of hitting the ball can also be learned.

[0041] <In the following FIG. 12, the flights of the practice using the upper, middle, and lower three-stage wall surfaces in the central column will be described.> The practitioner hits a driven serve 6A aiming above the middle net line of the 132 wall surface, the shuttle 10 of the U-turn bounces back along the 6V flight path, and the practitioner uses a side arm stroke to hit it back with a 7A drive parallel to the floor. The U-turn shuttle at a slightly upward angle of the 132 wall surface is bounced back by a low driven clear 7V. The practitioner moves backward and hits it back to the middle of the 131 wall surface with an 8A push using the forehand. The shuttle 10 at the angle of 131 bounces back slightly higher like an 8V flight. The practitioner moves further backward and hits it back strongly to the upper 133 wall surface like a 9A driven clear. The shuttle 10 is bounced back by a sharp 9V smash as if it was hit by the opponent. The practitioner quickly moves to the hitting position and hits it back to the 133 with a 10A receive using an underhand stroke. It is returned like a 10V flight. When the practitioner strongly hits it into the upper part of the lower wall surface 131 like an 11A flight, the shuttle 10 is flown high and far like an 11V flight. The practitioner quickly moves backward and strongly hits a 12A smash. The shuttle 10 is flown high and far. The practitioner can freely stroke drop cuts and smashes. The above flight content was the flight by the central wall surface of the return board. However, by aiming at both side wall surfaces 134, 135, and 136 on the left and right of the return board, the flight becomes more complicated, and all the left - right width of the court and both side walls are utilized. By using the features of the inclined surfaces of each of the 9 wall surfaces of the return board, one can set up intentionally according to one's own consciousness, convert the hitting position to hit the ball, and control the landing point. One can freely control strong, weak, long, short, left, right, up, middle, down, etc., create various flights, quickly move according to the flight, hit the ball at the accurate stroke position, increase the intensity of the content, and enrich the practice content.

[0042] The 130 wall surface part of the return board can correspond to the basic flights of badminton with different inclination angles for the 9 wall surfaces in 3 upper - middle - lower levels and 3 left - middle - right columns. Each inclination angle is not limited to the angle of the drawing design. Any angle is fine as long as it can accurately create the basic flights of badminton. However, when increasing or decreasing the angle, an angle within a range of plus or minus 10 degrees is preferably used. Regarding the adjustment method for each inclination angle, for example, as shown in FIG. 7 for the adjustment method of the elevation angle and the depression angle of the upper, middle, and lower three-stage wall surfaces, in order to fix the three-stage wall surfaces to the vertical wall fixing frame and the through column of the upper and lower triangular truss structure supports, it is necessary to adjust the inclination angles of the vertical inclination fixing frame 114 of the lower-stage wall surface, the vertical inclination fixing frame 114 of the upper-stage wall surface, and the through column 113. However, it is necessary to adjust the angles of the connection edges between the upper and lower sides of both side wall surfaces. Also, in the case of the left, middle, and right columns, as shown in the plan view of FIG. 8, the outer edges of both side wall surfaces incline forward. To adjust this inclination angle, as shown in FIG. 8-1, by adjusting the obtuse angle and the acute angle of the scalene rectangle of the six 117 wall fixing frames, the angles of both sides can be changed. However, it is necessary to adjust the angles of the connection edges between the upper and lower sides of both side wall surfaces.

[0043] <Regarding the effects> For the ribbon shuttlecock, due to the low air resistance, it can be installed outdoors in an individual's garden, park, etc. for practice in slightly strong winds, and the practice time of the athletes can be significantly increased by being able to practice freely during free time, resulting in faster improvement. Children will be more interested in badminton due to less influence from the family. It contributes to the popularization of badminton. Also, the ribbon shuttlecock is soft in the ball part 20 and causes little pain or injury when hitting a child's body. Or, if there is little damage to the good surface of the racket, the ribbon feathers of the ribbon shuttlecock are less damaged and can be used for a long time. Although the ends of the ribbon feathers are fixed with a fraying prevention liquid, there may be fraying due to hitting the racket many times. By using a repair technique with instant adhesive, one ribbon shuttlecock can be used for 5 to 6 years, which is economically beneficial. (The ball 20 is hardly damaged)

[0044] Practice the basic shots of badminton in FIGS. 11 and 12. By comprehensively utilizing the features of the nine-angle slopes on the wall surface of the return board 130, perform hitting with a converted hitting position, and intentionally set the landing point. It can be freely controlled in terms of strong, weak, long, short, left, right, up, middle, down, etc. In addition, various flights can be created. Move quickly according to the flight, and acquire agile footwork in all directions before and after hitting the ball at the accurate stroke position, and also be trained in explosive power. It is also possible to conduct a long rally with strong concentration. By reducing the distance between the hitting position and the return board 100, the interval between hits can be shortened, and a sense of speed can be achieved by accelerating the frequency, thereby strengthening the concentration of consciousness. Irregular flights require instantaneous and variable hitting abilities, and also train the reflex nerves and endurance. In addition, practice for doubles with two people is also possible.

[0045] Currently, for high-level players, when hitting a shuttlecock in badminton, the initial speed (maximum speed) far exceeds 400 km / h, which is the highest speed among ball sports. Additionally, unexpected flights due to excellent racket skills are suddenly attacked. Therefore, badminton players are required to have a high reflex nerve ability physically, a high instantaneous reaction speed, the ability to maintain concentration for a long time, excellent dynamic vision, high-difficulty racket skills, footwork that can move quickly in all directions, and explosive hitting power, etc. Therefore, badminton is a high-difficulty sport. On the other hand, it is difficult to practice alone. However, in this embodiment, it is possible to improve each of the above abilities while practicing badminton alone. It is also excellent in the coordination of reflex nerves and muscle movements through repeated practice. Furthermore, it is nurtured in the natural rhythm of badminton through years of polishing.

[0046] <Modification Example> As described above, one embodiment of the present invention has been explained, but the present invention can be variously modified in addition to this. This will be described below. In the above-described embodiments, the return board portion 100 is not limited to wood. For example, a badminton practice return board can be formed of reinforced concrete and installed in public places such as parks, squares, etc. of cities, towns, and villages, and be freely opened to the public, playing a role in promoting national health and sports. Also, a molded reinforcing material made of plastic or polycarbonate resin may be used to form a portable return board.

Explanation of Reference Numerals

[0047] 10 Shuttlecock, 20 Ball portion, 21 Ball line, 22 Stopping hole, 30 Blade portion, 31 Ribbon portion, 32 Rope insertion portion, 33 Spreading prevention portion, 34 Unraveling prevention member, 35 Insertion fixing portion, 36 Threaded portion, 37 Both-sided boat-shaped portion, 38 Bending portion, 39 Space portion, 40 Guard portion, 41 Stopping pin portion, 42 Stopping hole portion, 100 Return board portion, 110 Framework portion, 111 Base portion, 112 Large pulling portion, 112U Through-hole for insertion, 113 Column portion, 113U Receiving and fixing groove for column, 114 Central wall surface longitudinal fixing frame portion, 114U Receiving and fixing groove for longitudinal fixing frame, 115 Reinforcing frame portion, 116·116W Wall surface lateral fixing frame portion, 116U·116WU Fixing groove for wall surface lateral fixing frame, 117 Site wall surface longitudinal fixing frame portion, 118 Reinforcing fitting, 120 Safety device portion, 121 Safety support, 122 Fixing fitting, 123 Ground fixing portion of support, 130 Board wall surface portion, 131 Central lower wall surface, 132 Central middle wall surface, 133 Central upper wall surface, 134 Both-side lower wall surfaces, 135 Both-side middle wall surfaces, 136 Both-side upper wall surfaces, 140 Gentle curve portion, 141 Gentle curve horizontal frame portion, 142 Gentle curve vertical frame portion, T Hexagonal coach screw, R Net line, Y Course thread.

Claims

1. The ribbon feathers attached to the ball are hit with a ribbon shuttle for badminton practice. The ribbon feathers of the shuttle are made of commercially available organza ribbon, which is transparent and easy to remove air from, and is light and soft, so the shuttle can easily make a U-turn at the moment it hits the return board. The ribbon shuttlecock is used for badminton practice by beginners to advanced players, and the speed can be adjusted by adjusting the length and width of the ribbon member of the shuttlecock. The ribbon width of the shuttle feather for beginners and novice players is 17 to 19 mm, and the length is 120 to 140 mm. The ribbon width of the shuttlecock for intermediate players is 15 to 17 mm, and the length is 100 to 120 mm. The ribbon width of the shuttlecock for advanced players is 13 to 15 mm, and the length is 70 to 100 mm. There are three sizes available for beginners to advanced users, and the blade portion is made of multiple ribbon members, and the tips of the blades are twisted together to form a single rope-like insertion portion. The ribbon blade is composed of a plurality of ribbon members, and the ribbon members are connected to each other via anti-spreading parts so as not to spread apart from each other, and the anti-spreading parts are provided at positions that are half the length of the blade, A ribbon shuttle having a ribbon blade.

2. The ribbon blade according to claim 1 is attached to a sphere via an insert fixing part, This insertion and fixing part is made of plastic material and is molded into a double-sided boat shape (semicircular pipe); a screw thread is provided around the outer circumference; a bent part (acting as a hinge) is provided to join the two boat shapes; a space is provided to fit the rope-shaped insertion part at the tip of the blade; a guard part is provided to prevent the rope-shaped insertion part at the tip of the blade from coming out; a pin part is provided to keep the two boat shapes together when they are fitted together; and a hole part is provided to receive and stop the locking pin. When the ribbon blade portion is configured by fitting the rope-shaped insertion portion at the tip of the blade to the insertion fixing portion, when the ribbon blade portion is inserted and fixed to the ball portion, A ribbon shuttlecock for badminton practice.

3. A home badminton practice facility comprising the badminton practice bounce shuttlecock according to claims 1 and 2 and a return board that bounces the shuttlecock. The return board uses a gently curved frame and the inner angles of the joints of the nine inclined walls at the top, middle, bottom, left, middle, and right are adjusted, resulting in a gently concave return board configuration. A home badminton practice facility characterized by

4. When the badminton practice equipment for home use described in claim 3 is used as a return ball board and painted to make it suitable for all weather conditions, If a safety device is installed to protect the return board from bad weather such as strong winds, typhoons, and earthquakes, A safe home badminton practice facility.

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