Artificial shuttlecock

Abstract

An artificial shuttlecock includes a head, a plurality of stem, a plurality of feather, a first plurality of thread structure and a second thread structure. The plurality of stem is spaced apart on the head. Each stem includes a head section, a connecting section and a feather section. The connecting section is between the head section and the feather section. The head section is inserted into the head. The plurality of feather is connected to the plurality of stem at the feather section. The first plurality of thread structure is adjacent to the connecting section of the plurality of stem. The second thread structure is disposed on the connecting section of the plurality of stem and spaced apart from the first plurality of thread structure.

Description

Technical Field

[0001] This utility model relates to an artificial badminton shuttlecock. Background Technology

[0002] Badminton is a common and popular ball sport, with players competing by hitting shuttlecocks. Traditional badminton shuttlecocks are primarily constructed from natural feathers attached to the head. These natural feathers are mostly goose or duck feathers, which are selected and then processed into shuttlecocks. However, obtaining natural feathers is becoming increasingly difficult, and the selection process is complex and labor-intensive. Therefore, synthetic badminton shuttlecocks are now available on the market, attempting to address the shortage and complex selection process of natural feathers.

[0003] Most synthetic badminton shuttlecocks use a soft nylon frame instead of natural feathers, relying on the structure of the frame to absorb the airflow generated during impact. However, shuttlecocks made with this type of soft frame do not perform as well as natural feather shuttlecocks in terms of flight performance and feel when hit, making them less appealing to users. Currently, there are designs using fiber-reinforced resin or carbon fiber for the shaft and lightweight foam material for the feathers. This type of synthetic badminton shuttlecock has a more similar appearance to natural feather shuttlecocks and offers a superior feel when hit compared to shuttlecocks made with a soft frame.

[0004] However, the strength (toughness) and durability of shuttlecocks made of fiber-reinforced resin are inferior to those of natural badminton shuttlecocks. Shuttlecocks made of carbon fiber are prone to damage to the shuttlecock head and shaft, leading to shaft breakage, indicating room for improvement. Utility Model Content

[0005] In view of the above-mentioned problems, the main objective of this utility model is to provide an artificial badminton shuttlecock, which solves the problem of reduced overall durability caused by the shuttlecocks of existing artificial badminton shuttlecocks by using a structure of two first yarn structures and a second yarn structure set on multiple shuttlecock shafts.

[0006] To achieve the above objectives, this utility model provides an artificial badminton shuttlecock, comprising a head, multiple shafts, multiple feathers, two first yarn structures, and a second yarn structure. The shafts are spaced apart from the head. Each shaft includes a head section, a connecting section, and a feather section. The connecting section is located between the head section and the feather section. The head section is inserted into the head. The feathers are connected to the feather sections of the shafts. The two first yarn structures are adjacent to each other in the connecting section of the shafts. The second yarn structure is located in the connecting section of the shafts and is spaced apart from the two first yarn structures.

[0007] According to one embodiment of the present invention, the shortest distance from the first yarn structure to the ball head section is less than the shortest distance from the second yarn structure to the ball head section.

[0008] According to one embodiment of the present invention, the shortest distance from the first yarn structure to the ball head section is greater than the shortest distance from the second yarn structure to the fleece section.

[0009] According to one embodiment of the present invention, the two first yarn structures are respectively woven from three yarns.

[0010] According to one embodiment of the present invention, the second yarn structure is woven from three yarns.

[0011] According to one embodiment of the present invention, the second yarn structure is woven from four yarns.

[0012] According to one embodiment of the present invention, the two first yarn structures are each woven from four yarns.

[0013] According to one embodiment of the present invention, the second yarn structure is woven from four yarns.

[0014] According to one embodiment of the present invention, the two first yarn structures and the second yarn structure are wound around the connecting section of the yarn rods.

[0015] According to one embodiment of the present invention, the bristles are made of carbon fiber reinforced resin material.

[0016] As described above, the artificial badminton shuttlecock according to this utility model includes a head, multiple shafts, multiple feathers, two first yarn structures, and a second yarn structure. Each shaft includes a head section, a connecting section, and a feather section. The feathers are respectively connected to the feather sections of the shafts. The two first yarn structures are adjacent to each other in the connecting section of the shaft. The second yarn structure is disposed in the connecting section of the shaft and is spaced apart from the two first yarn structures. The artificial badminton shuttlecock has a structure of two tightly stacked yarn structures (i.e., first yarn structures), which can significantly improve the durability of the artificial badminton shuttlecock and simultaneously improve the hitting feel. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the artificial badminton shuttlecock of the present invention.

[0018] Figure 2 for Figure 1 The diagram shown is an exploded view of the artificial shuttlecock.

[0019] Figure 3 for Figure 2 The diagram shown is an exploded view of one of the hair shafts and its corresponding hair piece.

[0020] Figure 4 for Figure 1An enlarged schematic diagram of one of the yarn structures of the connecting component shown.

[0021] Figure 5 This is an enlarged schematic diagram of the yarn structure of another embodiment of the present invention.

[0022] Among them, the attached figures are labeled

[0023] 1 artificial shuttlecock, 10 shuttlecock heads

[0024] Top surface 11, Convex surface 12

[0025] Recess 13 Hair rod 20

[0026] Ball head section 21 Connecting section 22

[0027] Pornographic segment 23 Pornographic segment 30

[0028] Connecting component 40 First yarn structure 41, 42, 41a, 42a

[0029] The shortest distances D1, D2, and D3 in the second yarn structure 43 and 43a Detailed Implementation

[0030] To better understand the technical content of this utility model, preferred embodiments are described below.

[0031] Figure 1 This is a three-dimensional schematic diagram of an artificial badminton shuttlecock according to an embodiment of the present invention. Figure 2 for Figure 1 Please refer to the exploded diagram of the artificial shuttlecock shown below. Figure 1 and Figure 2As shown. The artificial badminton shuttlecock 1 of this embodiment includes a shuttlecock head 10, a plurality of feather shafts 20, a plurality of feather pieces 30, and a connecting assembly 40. One side of the shuttlecock head 10 has a semi-cylindrical structure. The shuttlecock head 10 has a top surface 11 and a convex surface 12, with the top surface 11 and the convex surface 12 located on opposite surfaces of the shuttlecock head 10. The convex surface 12 is the surface of the semi-cylindrical structure, while the top surface 11 allows the feather shafts 20 to be inserted. Preferably, the shuttlecock head 10 also includes a recess 13, which is disposed on the top surface 11 and extends from the top surface 11 towards the convex surface 12. In other words, the recess 13 is a groove extending from the top surface 11 into the interior of the shuttlecock head 10. In this embodiment, the recess 13 has a symmetrical shape with respect to the top surface 11, such as a circle, annulus, quadrilateral, octagon, or hexagonal polygon; this embodiment uses a circle as an example. Preferably, the recess 13 and the top surface 11 can be arranged in a concentric circle configuration. In this embodiment, the volume of the recess 13 accounts for between 1% and 7% of the volume of the ball head 10. Generally, the volume of the ball head 10 is approximately 10,866 mm3, so the volume of the recess 13 (hollow portion) can be between 414 mm3 and 692 mm3. In this embodiment, the volume of the recess 13 is 553 mm3.

[0032] Each hairpin 20 in this embodiment includes a ball head section 21, a connecting section 22, and a hair piece section 23. The connecting section 22 is located between the ball head section 21 and the hair piece section 23. In other words, each hairpin 20 in this embodiment can be divided into three sections: the sections near the opposite ends of the hairpin 20 are the ball head section 21 and the hair piece section 23, and the middle section is the connecting section 22. Multiple hairpins 20 are spaced apart on the ball head 10, and the ball head section 21 of the hairpin 20 is inserted into the top surface 11 of the ball head 10. In this embodiment, the material of the hairpin 20 is carbon fiber reinforced resin material to increase the durability of the hairpin 20. Specifically, the hairpin 20 in this embodiment is composed of a stack of unidirectional (UD) carbon fiber cloth and woven glass fiber cloth, which can increase the strength and durability of the hairpin 20.

[0033] Furthermore, the bob section 23 of the bob 20 is connected to the bob 30, that is, multiple bob 30s are respectively connected to the bob section 23 of multiple bob 20s. Figure 3 for Figure 2 Please refer to the exploded view diagram of one of the hair shafts and its corresponding hair piece. Figure 1 , Figure 2 and Figure 3As shown. Preferably, in this embodiment, the hairpiece 30 is attached to the hairpiece section 23 of the hairpiece rod 20 using adhesive. In this embodiment, each pair of hairpieces 30 is combined with one hairpiece rod 20, that is, two of the plurality of hairpieces 30 are connected to one of the plurality of hairpiece rods 20. Furthermore, each pair of hairpieces 30 is connected to opposite sides of the hairpiece rod 20. Specifically, adhesive is coated on one surface of the two hairpieces 30, and the adhesive-coated surface is adhered to opposite sides of the hairpiece rod 20. Finally, the other parts of the two hairpieces 30 are pressed together so that the two hairpieces 30 can also adhere to each other. Preferably, the hairpieces 30 can be adhered to the hairpiece rod 20 first, and then the ball head section 21 of the hairpiece rod 20 can be inserted into the ball head 10. In other words, in this embodiment, the section where the hair rod 20 is inserted into the ball head 10 is called the ball head section 21, and the section connected to the hair piece 30 is called the hair piece section 23, while the part between the ball head section 21 and the hair piece section 23 is the connecting section 22.

[0034] Furthermore, the feather 30 in this embodiment is also an artificial feather, replacing natural feathers. The feather 30 is made of a plastic with a density between 0.9 g / cm³ and 1.48 g / cm³, and the type of plastic can be, for example, but not limited to, low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polyethylene terephthalate (PET), polyethylene resin (PE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), polyamide (PA), and expanded polyethylene (EPE). Preferably, the feather 30 can be a combination of low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE). Additionally, the overall configuration of the feather 30 roughly corresponds to the configuration of the feathers of a natural badminton shuttlecock. Specifically, the hair piece 30 can be a mutually symmetrical configuration, and the configuration is mutually symmetrical with the hair rod 20 as the axis of symmetry, such as a kite-shaped configuration.

[0035] The hair rods 20 are spaced apart behind the ball head 10, and the spacing between adjacent hair rods 20 is fixed by a connecting component 40. In this embodiment, the connecting component 40 includes two first yarn structures 41 and 42 and a second yarn structure 43. The two first yarn structures 41 and 42 are arranged adjacently in the connecting section 22 of each hair rod 20. Figure 1As shown, the two first yarn structures 41 and 42 are stacked close to each other and wound around the connecting section 22 of the bobbin 20. In this embodiment, the first yarn structure 41 is located below (i.e., closer to the ball head 10), while the first yarn structure 42 is located above the first yarn structure 41 (i.e., facing the bobbin 30), and the first yarn structures 41 and 42 are close to each other. Furthermore, the second yarn structure 43 is also located in the connecting section 22 of the bobbin 20, and is spaced apart from the first yarn structures 41 and 42. That is, the first yarn structures 41 and 42 are close to each other, while the second yarn structure 43 is spaced apart from the close-up first yarn structures 41 and 42 by a distance.

[0036] Preferably, the first yarn structures 41 and 42 are closer to the ball head section 21 than the second yarn structure 43. Specifically, the shortest distance D1 from the first yarn structures 41 and 42 to the ball head section 21 is less than the shortest distance D2 from the second yarn structure 43 to the ball head section 21, such as... Figure 1 As shown. It should be noted that, since the first yarn structure 41 is closer to the ball head 10, the shortest distance D1 from the first yarn structures 41 and 42 to the ball head section 21 refers to the distance between the bottom edge of the first yarn structure 41 and the top edge of the ball head section 21. Furthermore, the shortest distance D2 from the second yarn structure 43 to the ball head section 21 refers to the distance between the bottom edge of the second yarn structure 43 and the top edge of the ball head section 21.

[0037] Preferably, in this embodiment, the shortest distance D1 from the first yarn structure 41, 42 to the ball head section 21 is greater than the shortest distance D3 from the second yarn structure 43 to the fleece section 23, such as... Figure 1 As shown. Similarly, the shortest distance D3 from the second yarn structure 43 to the bob section 23 refers to the distance between the top edge of the second yarn structure 43 and the bottom edge of the ball head section 21. In other words, in this embodiment, the distance between the second yarn structure 43 and the bob 30 is less than the distance between the first yarn structures 41, 42 and the ball head 10. In other embodiments, the shortest distance D1 from the first yarn structures 41, 42 to the ball head section may also be less than or equal to the shortest distance D3 from the second yarn structure 43 to the bob section 23, and this utility model is not limited thereto. Preferably, after the first yarn structures 41, 42 and the second yarn structure 43 are wound onto the bob 20, adhesive is then applied to the first yarn structures 41, 42, the second yarn structure 43 and the connecting section 22 to fix the spacing between the first yarn structures 41, 42 and the second yarn structure 43.

[0038] Among them, the first yarn structure 41, 42 and the second yarn structure 43 are all yarn structures woven from several yarns. Figure 4 for Figure 1The diagram shows an enlarged view of one of the yarn structures in the connecting component. It can be one of the first yarn structures 41 or 42, or the second yarn structure 43. Please refer to the diagram for further information. Figure 4 As shown. In this embodiment, the first yarn structures 41 and 42 and the second yarn structure 43 are each woven from three yarns, referred to herein as three-strand yarn structures. Furthermore, the two first yarn structures 41 and 42 are tightly stacked together, referred to herein as two-layer yarn structures, while the one second yarn structure 43 is referred to herein as one-layer yarn structure. Therefore, the connecting component 40 of this embodiment includes a three-strand two-layer yarn structure (i.e., the first yarn structures 41 and 42) and a three-strand one-layer yarn structure (i.e., the second yarn structure 43).

[0039] Figure 5 This is an enlarged schematic diagram of the yarn structure according to another embodiment of the present invention. Please refer to it for further information. Figure 5 As shown. In this embodiment, the yarn structure can be woven from four yarns, and similarly, it can be a first yarn structure 41a, 42a, or a second yarn structure 43a. In this disclosure, the aforementioned yarn structure woven from three yarns is referred to as the first yarn structure 41, 42, or the second yarn structure 43; and the yarn structure woven from four yarns is given different designations, namely the first yarn structure 41a, 42a, or the second yarn structure 43a. In the aforementioned embodiment, the connecting component 40 may include a three-strand two-track yarn structure (i.e., the first yarn structure 41, 42) and a three-strand one-track yarn structure (i.e., the second yarn structure 43). In another embodiment, the connecting component may include a three-strand two-track yarn structure (i.e., the first yarn structure 41, 42) and a four-strand one-track yarn structure (i.e., the second yarn structure 43a). In another embodiment, the connecting component may include a four-strand two-way yarn structure (i.e., first yarn structures 41a, 42a) and a four-strand one-way yarn structure (i.e., second yarn structure 43a). This disclosure also includes durability tests on artificial shuttlecocks made from the yarn structures of the aforementioned different embodiments, and the results are shown in Table 1.

[0040] Table 1: Durability test reports of artificial shuttlecocks (No. AD) and natural shuttlecocks (No. E) with different connecting components.

[0041]

[0042] Among them, the artificial badminton shuttlecock numbered A is the artificial badminton shuttlecock 1 of the aforementioned embodiment, and its connecting component 40 has a three-strand two-way yarn structure (i.e., the first yarn structure 41, 42) and a three-strand one-way yarn structure (i.e., the second yarn structure 43). The artificial badminton shuttlecock numbered B has a three-strand two-way yarn structure (i.e., the first yarn structure 41, 42) and a four-strand one-way yarn structure (i.e., the second yarn structure 43a). The artificial badminton shuttlecock numbered C has a four-strand two-way yarn structure (i.e., the first yarn structures 41a, 42a) and a four-strand one-way yarn structure (i.e., the second yarn structure 43a). Numbered E is a natural badminton shuttlecock. The yarn structure of existing natural badminton shuttlecocks is usually woven from four yarns (four strands), and each has only one way, so it is two sets of four-strand one-way yarn structures. Numbered D is an artificial badminton shuttlecock with a configuration similar to that of a natural badminton shuttlecock (two sets of four-strand one-way yarns). It should also be noted that, apart from the aforementioned differences in the yarn structure, the structure of artificial shuttlecocks is the same for natural shuttlecocks numbered AD.

[0043] Furthermore, the durability test involved smashing the synthetic or natural shuttlecocks (numbered AE) until the shaft or the connected head was damaged, recording the average number of smashes. Table 1 shows that the durability of synthetic shuttlecocks with a two-strand, tightly stacked yarn structure (i.e., first yarn structures 41, 42, or first yarn structures 41a, 42a) is significantly improved. That is, synthetic shuttlecocks labeled A, B, and C in Table 1 can withstand a higher average number of smashes compared to synthetic or natural shuttlecocks labeled D and E. Preferably, synthetic shuttlecocks labeled A and B with a three-strand, two-string yarn structure (i.e., first yarn structures 41, 42) further increase durability by approximately twice the number of smashes (e.g., from 6 smashes to 14.5 or 15 smashes).

[0044] Table 2: Impact feel test report of artificial shuttlecocks (No. AD) with different connecting components.

[0045]

[0046] Additionally, the "Net Drop Shot (out of 9)" field assesses the user's performance in net drop shots using synthetic shuttlecocks numbered A through D, with a maximum score of 9. Evaluation is based on the number of rotations and spins of the shuttlecocks, or the user's perception of elasticity and firmness upon impact. The closer the performance is to that of a natural shuttlecock, the higher the score. Furthermore, the "Overall Evaluation (out of 9)" field provides a comprehensive assessment of the flight characteristics and speed of the synthetic shuttlecocks numbered A through D upon impact. Again, better flight performance results in a higher score.

[0047] As shown in Table 2, the results of the impact feel test indicate that the artificial shuttlecocks (numbered A, B, and C) with two tightly stacked yarn structures (i.e., first yarn structures 41, 42, or first yarn structures 41a, 42a) are better than the existing artificial shuttlecocks (numbered D) with a single yarn structure, both in terms of ball trajectory control (net drop shot) and overall evaluation.

[0048] In summary, the artificial badminton shuttlecock according to this utility model includes a head, multiple shafts, multiple feathers, two first yarn structures, and a second yarn structure. Each shaft includes a head section, a connecting section, and a feather section. The feathers are respectively connected to the feather sections of the shafts. The two first yarn structures are adjacent to each other in the connecting section of the shaft. The second yarn structure is disposed in the connecting section of the shaft and is spaced apart from the two first yarn structures. The artificial badminton shuttlecock has a structure of two tightly stacked yarn structures (i.e., first yarn structures), which can significantly improve the durability of the artificial badminton shuttlecock and simultaneously improve the hitting feel.

[0049] It should be noted that the above embodiments are examples for ease of illustration, and the scope of protection claimed by this utility model should be determined by the scope of the claims, and not limited to the above embodiments.

Claims

1. An artificial shuttlecock, characterized in that, Comprising: a ball head; a plurality of hair rods, which are arranged at intervals on the ball head, each of the hair rods comprising a ball head segment, a connecting segment and a hair piece segment, the connecting segment being located between the ball head segment and the hair piece segment, the ball head segment being inserted into the ball head; a plurality of hair pieces, which are connected to the hair piece segments of the hair rods, respectively; two first thread structures, which are arranged adjacently on the connecting segments of the hair rods; and a second thread structure, which is arranged on the connecting segments of the hair rods and is arranged at intervals with the two first thread structures.

2. The artificial shuttlecock according to claim 1, wherein A shortest distance from the two first thread structures to the ball head segment is smaller than a shortest distance from the second thread structure to the ball head segment.

3. The artificial shuttlecock according to claim 1, wherein A shortest distance from the two first thread structures to the ball head segment is greater than a shortest distance from the second thread structure to the hair piece segment.

4. The artificial shuttlecock according to claim 1, wherein The two first thread structures are each knitted by three wires.

5. The artificial shuttlecock according to claim 4, wherein The second thread structure is knitted by three wires.

6. The artificial shuttlecock according to claim 4, wherein The second thread structure is knitted by four wires.

7. The artificial shuttlecock according to claim 1, wherein The two first thread structures are each knitted by four wires.

8. The artificial shuttlecock according to claim 7, wherein The second thread structure is knitted by four wires.

9. The artificial shuttlecock of claim 1, wherein, The two first thread structures and the second thread structure are wound on the connecting segments of the hair rods.

10. The artificial shuttlecock according to claim 1, wherein The hair rods are made of carbon fiber reinforced resin material.

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