TWM590989U - Artificial badminton - Google Patents

Abstract

The present invention discloses an artificial badminton ball, which includes a ball head, plural wool shafts, plural wool pieces, a first connecting member, a second connecting member and at least a third connecting member. The ball head has a recess. One end of the wool shaft is inserted into the ball head, and the wool piece is connected to the wool shaft. The first connecting piece is connected to the wool shaft and close to the ball head. The second connecting piece is connected to the hair rod and close to the hair piece. The third connector is connected to the hair rod and is located between the first connector and the second connector.

Description

Artificial badminton

This creation is about an artificial badminton.

Badminton game is a common and popular ball game, and hitting badminton is the way of playing. In traditional badminton, the main structure is that natural feathers are combined with the ball head. Among them, the natural feathers are mostly goose feathers or duck feathers, which are made into badminton after bleaching and screening. However, the acquisition of natural feathers is becoming more and more difficult, and the screening process is complicated and labor-intensive. Therefore, artificial badminton is also on the market, trying to solve the problem of shortage of natural feathers and complicated screening.

Most artificial shuttlecocks replace the natural feathers with a soft ball rack made of nylon. The structure of the soft ball rack carries the airflow generated during the impact. However, the badminton made of such a soft ball rack does not provide a better impact feeling than the badminton made of natural feathers, which is difficult for users to accept. At present, there are also designs using fiber-reinforced resin material as the hair shaft and lightweight foam material as the hair piece. The appearance of this type of artificial badminton is similar to that of natural badminton, and the impact feel is also better than that of the soft ball frame. Badminton. However, the strength (toughness) and durability of fiber-reinforced resin rods are inferior to those of natural badminton.

FIG. 1 is a schematic diagram of a conventional artificial shuttlecock 9, please refer to FIG. Generally speaking, the artificial shuttlecock 9 includes a ball head 91, a plurality of wool shafts 92, a plurality of wool pieces 93, two connecting pieces 94 and other structures. The wool piece 93 is connected to one end of the wool shaft 92, and the other end of the wool shaft 92 is inserted into the ball head 91. The connecting member 94 is wound around the wool shaft 92, thereby fixing the distance between the adjacent two wool shafts 92. In order to increase the durability of the wool shaft, there is also a design in which the wool shaft 92 of the artificial shuttlecock 9 is changed to a carbon fiber material (for example, the CN201520145603 patent case), thereby increasing the strength (toughness) and durability of the wool shaft 92. However, the wool shaft 92 made of carbon fiber material is likely to cause damage to the ball head 91 and the wool shaft 92, thereby causing the wool shaft 92 to break. For example, when killing a ball, the wool shaft 92 is subjected to a strong external force, which causes the stress concentration of the wool shaft 92 inserted in the area A of the ball head 91, which easily causes the hair shaft 92 to break, and breaks between the ball head 91 and the closest connecting member 94 Therefore, the overall durability of the artificial shuttlecock 9 is further reduced, and it is necessary to improve it. It should be noted that, in order to make the drawing simple, FIG. 1 only uses one of the burs 92 as an example to mark the areas A and B.

In view of the above-mentioned problems, the main purpose of this creation is to provide an artificial badminton, which solves the problem of reducing the overall durability of the conventional artificial badminton composed of carbon fiber materials by using a novel structural design connecting the wool shaft and the ball head .

To achieve the above purpose, the present invention provides an artificial badminton ball, which includes a ball head, a plurality of wool shafts, a plurality of wool pieces, a first connecting member, a second connecting member, and at least a third connecting member. The ball head has a top surface and a concave portion, and the concave portion is disposed on the top surface. The wool shafts respectively have a first end and a second end opposite to each other. The first ends of the wool shafts are inserted on the top surface of the ball head. The hair pieces are connected to one of the hair rods, and are close to the second end. The first connecting piece is connected to the wool shafts and is close to the ball head. The second connecting member is connected to the hair rods and is close to the hair pieces. The third connector is connected to the hair rods, and is located between the first connector and the second connector.

According to an embodiment of the present invention, two adjacent hair rods have a distance range, and the first connecting member, the second connecting member, and the third connecting member are connected to the hair rods, so that the two adjacent hair rods are fixed in the distance range Inside.

According to an embodiment of the present creation, the distance between the first connector and the ball head is between 5 mm and 14.5 mm.

According to an embodiment of the present creation, the distance between the second connecting member and the wool piece is between 0.01 mm and 5 mm.

According to an embodiment of the present creation, the distance between the second connector and the ball head is between 17.5 mm and 29 mm.

According to an embodiment of the present creation, the first connector, the second connector, and the third connector are the same component.

According to an embodiment of the present invention, the first connecting member, the second connecting member, and the third connecting member are respectively a wire rod, and are wound around the hair rods.

According to an embodiment of the present creation, the first connector, the second connector and the third connector are parallel to each other.

According to an embodiment of the present invention, the distance between the third connector and the first connector and the second connector is substantially the same.

According to an embodiment of the present invention, the distance between the third connecting member, the first connecting member and the second connecting member is between 5 mm and 17.5 mm.

According to an embodiment of the present invention, the ball head further includes a convex surface located on the opposite side of the top surface, and the concave portion extends from the top surface toward the convex surface.

According to an embodiment of the present creation, the concave portion has a symmetrical shape on the top surface.

According to an embodiment of the present creation, the concave portion has a symmetrical shape based on a center of a circle on the top surface.

According to an embodiment of the present creation, the concave portion and the top surface are arranged concentrically.

According to an embodiment of the present creation, the recess is a circle or a ring.

According to an embodiment of the present creation, the ratio of the volume of the recess to the volume of the ball head is between 1% and 7%. According to an embodiment of the present creation, the weight of the concave portion filled with the same material as the ball head is increased by 0.06 grams to 0.10 grams from the original weight.

According to an embodiment of the present invention, the material of the hair shaft includes a carbon fiber reinforced resin material.

According to an embodiment of the present invention, the wool pieces respectively include two perforations, and the two perforations are respectively located on opposite sides of the wool shaft.

As mentioned above, according to the artificial badminton according to the present invention, at least three connecting members, such as the first connecting member, the second connecting member, and the third connecting member, fix the hair shaft to reduce the swing of the hair shaft. In addition, the ball head further has a concave portion, thereby destroying the structure of the ball head, which can reduce the concentration of stress between the ball head and the wool shaft, and thus can prevent the wool shaft from breaking. With the aforementioned two novel structural designs, the durability of artificial badminton is greatly improved.

In order to enable your reviewing committee to better understand the technical content of this creation, the preferred specific embodiments are described below.

FIG. 2 is a perspective schematic view of an artificial badminton shuttlecock according to an embodiment of the creation, FIG. 3 is an exploded schematic view of the artificial badminton shuttlecock shown in FIG. 2, and FIG. 4 is a schematic sectional view of the artificial badminton shuttlecock shown in FIG. 2. Figures 3 and 4 show. The artificial shuttlecock 1 of this embodiment includes a ball head 10, a plurality of wool shafts 20, a plurality of wool pieces 30, and a connecting assembly 40. The connection assembly 40 includes a first connection member 41, a second connection member 42, and at least a third connection member 43. In this embodiment, a third connection member 43 is used as an example.

The ball head 10 of this embodiment has a top surface 11, a concave portion 12 and a convex surface 13. The convex surface 13 is located on the opposite side of the top surface 11. One side of the ball head 10 is a semi-cylindrical structure, and the convex surface 13 is a surface of the semi-cylindrical structure. The top surface 11 and the convex surface 13 are located on two opposite surfaces of the ball head 10, and the top surface 11 is used for inserting the hair shaft 20. In addition, the concave portion 12 is provided on the top surface 11, and the concave portion 12 extends from the top surface 11 toward the convex surface 13. In other words, the concave portion 12 is a groove extending from the top surface 11 toward the inside of the ball head 10, as shown in FIG.

FIG. 5 is a top view of the artificial badminton shown in FIG. 1, please refer to FIGS. 4 and 5 at the same time. In this embodiment, the concave portion 12 has a symmetrical shape on the top surface 11, such as a circular shape, a circular shape, a quadrangular shape, an octagonal shape, or a hexagonal shape. Preferably, the concave portion 12 has a symmetrical shape with reference to a center C of the top surface 11, which may be, for example but not limited to, a circle, a ring, or the aforementioned symmetrical polygon. More preferably, the concave portion 12 and the top surface 11 can be arranged concentrically. In this case, the concave portion 12 can be circular or circular. The concave portion 12 in this embodiment is circular. In this embodiment, the ratio of the volume of the recess 12 to the volume of the ball head 10 is between 1% and 7%. Generally speaking, the volume of the ball head 10 is about 10,866 mm3, so the volume of the recess 10 (hollow portion) may be between 414 mm3 and 692 mm3, and the volume of the recess 10 in this embodiment is 553 mm3. .

When manufacturing the artificial shuttlecock 1, a ball head 91 that does not have the concave portion 12 can be taken first (as the ball head 91 of the conventional technology, so it is described by the same reference number). Next, using the center of the top surface of the ball head 91 as a central point, a symmetrical shape, such as a circle, is chiseled to form the ball head 10 and the concave portion 12 of this embodiment. Specifically, a circle with a diameter of about 8 mm is drawn, and the center of the circle is the same as the center of the top surface of the ball head 91 (as shown in FIG. 5). Next, according to the drawn circular range, a groove with a depth of about 11 mm to 11.5 mm is cut into the inside of the ball head 91 (as shown in FIG. 4) to form a recess 12 with a volume of 553 mm3. The ball head 10 and its recess 12 of this embodiment. If the ball head 10 (or ball head 91) is made of cork material, the weight of the cork is about 0.06 grams to 0.10 grams, preferably 0.08 grams. In other words, the weight after filling the recess 12 (volume 553 mm3) with the same material as the ball head 10 (such as cork) (that is, the weight of the ball head 91) is increased from the original weight of the ball head 10 by 0.06 g to 0.10 g, which is It may be 0.08 grams. It should also be noted that the weight cut out to form the recess 12 is related to the number of the third connectors 43. In this embodiment, one piece of the third connecting member 43 is taken as an example, so the weight of the chisel is between 0.06 grams and 0.10 grams. In other embodiments, if the number of the third connecting members 43 is increased, the weight of the chiseling is also increased proportionally, that is, the volume of the recess 12 is also increased proportionally.

2 and 3, each bur 20 has a first end 21 and a second end 22 opposite to each other. The plural hair shafts 20 are arranged on the ball head 10 at intervals, and the first end 21 of the hair shaft 20 is inserted into the top surface 11 of the ball head 10. Moreover, the second end 22 of the hair shaft 20 is connected to the hair piece 30, that is, the hair pieces 30 are respectively connected to one of the hair shafts 20 and are close to the second end 22. In this embodiment, the material of the hair shaft 20 is a carbon fiber reinforced resin material to increase the durability of the hair shaft 20. Specifically, the hair rod 20 of this embodiment is formed by stacking unidirectional (UD) carbon fiber cloth and woven glass fiber cloth, which can increase the strength and durability of the hair rod 20.

Preferably, the wool piece 30 is connected to the wool shaft 20 by viscose and is close to the second end 22 of the wool shaft 20. In this embodiment, each of the two pieces 30 is combined with one stalk 20, that is, two of the plurality of pieces 30 are connected to one of the plurality of pieces 20. In addition, each of the two flakes 30 is respectively connected to the two opposite sides of the stalk 20. Specifically, one side of the second wool sheet 30 is coated with glue, and the surface with the glue is adhered to the opposite sides of the hair rod 20, and finally the other parts of the two wool sheets 30 are pressed to make the two wool sheets 30 can also be glued to each other. Preferably, the wool piece 30 may be bonded to the wool shaft 20 before the first end 21 of the wool shaft 20 is inserted into the ball head 10.

In addition, the hair piece 30 of this embodiment is also an artificial hair piece to replace natural feathers. The wool sheet 30 is made of plastic with a density between 0.9 g/cm3 and 1.48 g/cm3, and the type of plastic may be, for example but not limited to, low density polyethylene (LDPE), linear low density Polyethylene (Linear low density polyethylene, LLDPE), polyethylene terephthalate (PET), polyethylene resin (PE), polypropylene (PP), acrylonitrile-butadiene -Plastic materials such as acrylonitrile-butadiene-styrene (ABS), polyamide (PA) and expanded polyethylene (EPE). Preferably, the wool sheet 30 may be a combination of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE). In addition, the overall configuration of the wool sheet 30 roughly corresponds to the configuration of feathers of natural badminton. Specifically, the wool pieces 30 may have a symmetrical configuration with each other, and the stalk 20 is used as a symmetry axis to exhibit a mutually symmetrical configuration, for example, a zigzag configuration.

After the hair shafts 20 are arranged at intervals on the ball head 10, the connecting assembly 40 is used to fix the distance between the adjacent two hair shafts 20. The connecting assembly 40 of this embodiment is composed of three connecting pieces, namely a first connecting piece 41, a second connecting piece 42 and a third connecting piece 43. In other words, the first connecting member 41, the second connecting member 42, and the third connecting member 43 are connected to the hair shaft 20. Among them, the one close to the ball head 10 is the first connecting member 41, the one close to the wool piece 30 is the second connecting member 42, and the third connecting member 43 is located between the first connecting member 41 and the second connecting member 42.

Specifically, the adjacent two bristles 20 have a distance range SR, and the first connecting member 41, the second connecting member 42 and the third connecting member 43 are connected to the bristle bars 20, so that the adjacent two bristles 20 are fixed within the distance range SR . It should be noted that, since the hair shaft 20 can be inserted obliquely on the top surface 11 of the ball head 10, the distance between the adjacent two hair shafts 20 is not fixed, and the closer to the second end 22, the larger the distance. Therefore, the pitch range SR is used here instead of a certain value. In this embodiment, the first connector 41, the second connector 42 and the third connector 43 may be the same member. Preferably, the first connecting member 41, the second connecting member 42 and the third connecting member 43 are respectively a wire rod, which is wound around the hair rod 20, thereby fixing the distance between the hair rods 20. Preferably, after the first connecting member 41, the second connecting member 42 and the third connecting member 43 are wound around the hair shaft 20, the first connecting member 41, the second connecting member 42 and the third The connecting member 43 and the bristle bar 20 in contact therewith.

When manufacturing the artificial shuttlecock 1, the first connecting member 41 and the second connecting member 42 can be provided first, and then the third connecting member 43 can be arranged between the first connecting member 41 and the second connecting member 42. FIG. 6 is a partial schematic view of the artificial badminton shown in FIG. 4, which is the size of each structure, so part of the structure is omitted, please refer to FIGS. 4 and 6 at the same time. In this embodiment, the length L1 of the hair shaft 20 exposed outside the ball head 10 may be between 61.5 mm and 66 mm, and the length L2 of the wool piece 30 may be between 36 mm and 39 mm. In this embodiment, the distance D1 between the first connecting member 41 and the ball head 10 may be between 5 mm and 14.5 mm, preferably 8 mm. Moreover, the distance D2 between the second connecting member 42 and the wool sheet 30 may be between 0.01 mm and 5 mm. In other words, the second connecting member 42 may also be adjacent to the wool piece 93 (for example, the distance D2 is 0.01 mm). The distance D3 between the second connecting member 42 and the ball head 10 may be between 17.5 mm and 29 mm.

After the relative positions of the first connector 41 and the second connector 42 are determined, the third connector 43 is arranged between the first connector 41 and the second connector 42. Preferably, the first connector 41, the second connector 42 and the third connector 43 are parallel to each other, so the distance D4 between the third connector 43 and the first connector 41 and the second connector 42 is substantially the same, so The distance D4 is indicated in FIG. 6. In other embodiments, the distance between the third connection member 43 and the first connection member 41 and the second connection member 42 may also be different, and there is no particular limitation on the creation. Preferably, the distance D4 between the third connecting member 43 and the first connecting member 41 and the second connecting member 42 is between 5 mm and 17.5 mm.

Table 1 is the durability test report of artificial badminton with various structures. Table I: Artificial badminton number Structure Durability Remarks A (1) A total of 2 connectors (2) No recess 5 shots broken after 7 shots Common knowledge artificial badminton 9 B (1) A total of 2 connectors (3) have recesses 7 shots, 2 bristles break C (1) A total of 3 connectors (2) No recess After killing the ball for 10 times, a stalk breaks D (1) A total of 3 connectors (2) have recesses (3) The distance D1 is 8 mm 25 shots, no break Know the artificial badminton 1 of the previous embodiment E (1) A total of 3 connectors (2) have recesses (3) The distance D1 is 6 mm 25 shots, no break F (1) A total of 3 connectors (2) have recesses (3) The distance D1 is 14.5 mm 25 shots, no break

From the durability test results shown in the above table, it can be seen that when the condition (1) is satisfied at the same time, there are three connectors (ie, the first connector 41, the second connector 42 and the third connector 43) and the condition (2) the ball head 10 has a recess 12 and the durability is greatly improved. That is, the numbers D, E, and F in Table 1 are more than about 3 times higher than the number A (the conventional artificial badminton 9) (for example, the original 7 times of the ball to 25 or more) Durability.

As shown in FIG. 1, the conventional artificial badminton 9 (number A in Table 1) has only two connecting members 94, so when the hitter hits the artificial badminton 9 with a ball, the connecting member 94 has a weak binding force on the wool shaft 92, and the ball Both the head 91 and the wool shaft 92 are strong structures, which results in the stress concentration of the wool shaft 92 at the ball head 91 (as shown in the area A of FIG. 1), making the wool shaft 92 easier to connect the ball head 91 to the closest Pieces 94 broke. However, if only by increasing the number of connecting pieces (3 pieces), to improve the binding force on the wool shaft, as shown in Table 1, number C, the durability that can be improved is limited, and the number of shots increased is less than 2 times. If the concave part is formed only by the ball head to reduce the concentration of stress between the ball head and the wool shaft, as shown in table 1, number B, it can only improve a little durability, for example, the same 7 shots, the wool shaft breaks The number was reduced from 5 to 2 only.

The artificial badminton 1 of this embodiment (number D in Table 1) fixes the hair shaft 20 by at least three connection members, such as the first connection member 41, the second connection member 42, and the third connection member 43, so as to reduce the swing of the hair shaft 20. In addition, the provision of the concave portion 12 can destroy the structure of the ball head 10 and reduce the concentration of stress between the ball head 10 and the wand 20, thereby greatly improving the durability of the artificial shuttlecock 1.

FIG. 7 is a schematic diagram of creating an artificial badminton 1a according to another embodiment. Please refer to FIG. 7. In this embodiment, the wool sheet 30a includes two perforations 31a and 31b, and the perforations 31a and 31b are located on opposite sides of the wool shaft 20, respectively. The difference between the artificial badminton shuttlecock 1a of this embodiment and the artificial shuttlecock 1a of the previous embodiment lies in the structure of the wool sheet 30a, so the other components use the reference numbers of the previous embodiments. Preferably, the length of the perforations 31a and 31b may be between 8.2 mm and 10.7 mm; and the width may be between 1 mm and 3 mm. In this embodiment, the length of the perforations 31a and 31b is 8.65 mm, and the width is 1 mm. In this embodiment, only through holes 31a and 31b are provided on the two sides of the hair shaft 20, respectively, to achieve different wind resistances to improve the effect of hitting the ball.

In summary, in the artificial badminton according to the present invention, at least three connecting members, such as the first connecting member, the second connecting member, and the third connecting member, fix the hair shaft to reduce the swing of the hair shaft. In addition, the ball head further has a concave portion, thereby destroying the structure of the ball head, which can reduce the concentration of stress between the ball head and the wool shaft, and thus can prevent the wool shaft from breaking. With the aforementioned two novel structural designs, the durability of artificial badminton is greatly improved.

It should be noted that many of the above embodiments are examples for convenience of description, and the scope of the rights claimed should be subject to the scope of the patent application, and not limited to the above embodiments.

1, 1a, 9‧‧‧‧ artificial badminton 10, 91‧‧‧ ball head 11‧‧‧Top 12‧‧‧recess 13‧‧‧Convex 20, 92 21‧‧‧First 22‧‧‧The second end 30, 30a, 93‧‧‧ 31a, 31b‧‧‧Perforation 40‧‧‧Connecting components 41‧‧‧First connector 42‧‧‧Second connector 43‧‧‧The third connector 94‧‧‧Connector A‧‧‧Region C‧‧‧Circle center D1, D2, D3, D4‧‧‧ distance L1, L2‧‧‧Length SR‧‧‧Pitch range

FIG. 1 is a schematic diagram of a conventional artificial badminton. FIG. 2 is a three-dimensional schematic diagram of a badminton according to an embodiment of the creation. FIG. 3 is an exploded schematic view of the artificial badminton shown in FIG. 2. 4 is a schematic cross-sectional view of the artificial badminton shown in FIG. 2. FIG. 5 is a top view of the artificial badminton shown in FIG. 1. FIG. 6 is a partial schematic view of the artificial badminton shown in FIG. 4. 7 is a schematic diagram of creating an artificial badminton shuttlecock according to another embodiment.

1‧‧‧ Artificial Badminton

10‧‧‧ball head

11‧‧‧Top

12‧‧‧recess

13‧‧‧Convex

20‧‧‧ wool shaft

22‧‧‧The second end

30‧‧‧female

40‧‧‧Connecting components

41‧‧‧First connector

42‧‧‧Second connector

43‧‧‧The third connector

SR‧‧‧Pitch range

Claims (19)

An artificial badminton, including: A ball head with a top surface and a concave portion, the concave portion is provided on the top surface; A plurality of wool shafts respectively having a first end and a second end opposite to each other, the first ends of the wool shafts are inserted into the top surface of the ball head; A plurality of wool pieces connected to one of the wool shafts and close to the second end; A first connecting piece connected to the hair shafts and close to the ball head; A second connecting piece connected to the hair rods and close to the hair pieces; and At least one third connecting member is connected to the bristles and is located between the first connecting member and the second connecting member. The artificial badminton as described in item 1 of the patent application scope, wherein two adjacent hair shafts have a distance range, and the first connection member, the second connection member and the third connection member are connected to the hair shafts so that The two adjacent hair rods are fixed within the distance range. The artificial badminton as described in item 1 of the patent application range, wherein the distance between the first connecting member and the ball head is between 5 mm and 14.5 mm. The artificial badminton as described in Item 3 of the patent application range, wherein the distance between the second connecting member and the wool piece is between 0.01 mm and 5 mm. The artificial badminton as described in item 4 of the patent application scope, wherein the distance between the second connecting member and the ball head is between 17.5 mm and 29 mm. The artificial badminton as described in item 1 of the patent application scope, wherein the first connector, the second connector and the third connector are the same component. The artificial badminton as described in item 6 of the patent application scope, wherein the first connecting piece, the second connecting piece and the third connecting piece are respectively a wire rod wound around the hair shafts. The artificial badminton as described in item 1 of the patent application scope, wherein the first connecting member, the second connecting member and the third connecting member are parallel to each other. The artificial badminton as described in item 8 of the scope of the patent application, wherein the distance between the third connector and the first connector and the second connector is substantially the same. The artificial badminton as described in item 8 of the patent application range, wherein the distance between the third connecting member, the first connecting member and the second connecting member is between 5 mm and 17.5 mm. The artificial badminton shuttlecock of claim 1, wherein the ball head further includes a convex surface on the opposite side of the top surface, and the concave portion extends from the top surface toward the convex surface. The artificial badminton as described in item 11 of the patent application scope, wherein the concave portion has a symmetrical shape on the top surface. The artificial badminton as described in item 11 of the patent application scope, wherein the concave portion has a symmetrical shape based on a center of the top surface. The artificial badminton as described in item 12 of the patent application scope, wherein the concave portion and the top surface are arranged concentrically. The artificial badminton as described in item 13 of the patent application scope, wherein the concave portion is a circle or a ring. The artificial badminton as described in item 14 of the patent application scope, wherein the volume of the recessed portion accounts for between 1% and 7% of the volume of the ball head. The artificial badminton as described in Item 16 of the patent application range, wherein the weight after filling the recess with the same material as the ball head increases from the original weight of the ball head by 0.06 grams to 0.10 grams. The artificial badminton as described in item 1 of the patent application scope, wherein the material of the hair shaft includes a carbon fiber reinforced resin material. The artificial badminton as described in item 1 of the patent application scope, wherein the wool pieces respectively include two perforations, and the two perforations are respectively located on two opposite sides of one of the wool shafts.

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