Artificial shuttlecock blade and artificial shuttlecock

Abstract

The utility model relates to an artificial badminton blade which comprises a non-woven fabric blade and a carbon fiber blade rod, the non-woven fabric blade is combined on the carbon fiber blade rod, the non-woven fabric blade is provided with a tip end located at the top, the tip end of the non-woven fabric blade is higher than the end portion of the carbon fiber blade rod by a preset distance, and the preset distance is 1-5 mm. According to the artificial shuttlecock blade and the artificial shuttlecock, the non-woven fabric feather blades and the carbon fiber blade rods are creatively combined to form the artificial blades, and the mechanical strength of natural feathers can be achieved on the premise that the weights are basically the same; meanwhile, the top end of the carbon fiber leaf rod is located below the non-woven fabric leaf, on one hand, the tip of the carbon fiber leaf rod is protected, the tip of the carbon fiber leaf rod is prevented from stabbing a user, and sports injuries are avoided. On the other hand, the tips of the carbon fiber leaf rods and the tips of the non-woven fabric feather leaves are arranged in the preferable preset range, the gravity center of the whole artificial badminton can be better adjusted, and the weight of the artificial badminton can be scientifically distributed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of badminton sports equipment technology, and in particular to an artificial badminton blade and an artificial badminton shuttlecock. Background Technology

[0002] In recent years, due to factors such as the low income from aquaculture, the increasing number of people engaging in badminton, and the resulting gap between supply and demand for raw materials, the supply and price of natural badminton shuttlecocks have faced an unprecedented situation. Currently, the price of feathers has increased by more than 27% due to scarcity (and continues to rise), forcing grassroots badminton enthusiasts to rely on (extremely low-end) shuttlecocks to meet their needs. In Europe, some have even switched to nylon shuttlecocks.

[0003] More than a decade ago, some leading companies in the industry foresaw the crisis facing natural badminton shuttlecocks—the physical properties of natural feathers are inconsistent, requiring significant labor and time, which is inconsistent with the global trend towards environmental protection (it is the only Olympic sport that still uses natural raw materials to make equipment). The Badminton World Federation (BWF) has also been committed to finding ways to replace natural materials with artificial materials. Since 2021, the BWF has mandated the use of artificial shuttlecocks in international competitions, which has prompted major badminton manufacturers worldwide to pay attention to and initiate the research and development of artificial shuttlecocks.

[0004] Artificial shuttlecocks still differ from natural shuttlecocks in terms of mechanical strength, flight trajectory, and safety of use, and there is room for improvement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an artificial badminton blade and an artificial badminton shuttlecock.

[0006] To achieve the above objectives, the first aspect of this utility model provides an artificial badminton blade with the following technical solution: it includes a non-woven fabric blade and a carbon fiber blade rod, wherein the non-woven fabric blade is attached to the carbon fiber blade rod, the non-woven fabric blade has a pointed tip at the top, and the pointed tip of the non-woven fabric blade is higher than the end of the carbon fiber blade rod by a predetermined distance, wherein the predetermined distance is 1 to 5 mm.

[0007] Preferably, the preset distance is 2 to 3.5 mm.

[0008] Preferably, the nonwoven fabric blade is provided with at least one first opening and at least one second opening, the at least one first opening being located on a first side of the carbon fiber blade rod, and the at least one second opening being located on a second side of the carbon fiber blade rod, with the first side and the second side being opposite to each other.

[0009] Preferably, the carbon fiber blade includes a covering section covered by the nonwoven fabric blade, the covering section having at least one adhesive portion bonded to the nonwoven fabric blade and at least one independent portion not connected to the nonwoven fabric blade, the adhesive portion being located above the independent portion in the axial direction of the carbon fiber blade.

[0010] Preferably, the nonwoven fabric blade includes at least one first piece and at least one second piece, the first piece and the second piece being disposed overlappingly on both sides of the carbon fiber blade rod, and the first piece and the second piece being bonded together by several bonding lines.

[0011] Preferably, the nonwoven fabric blade includes at least one third piece located between the first piece and the carbon fiber blade rod or between the second piece and the carbon fiber blade rod, the third piece being configured to at least cover the top end of the carbon fiber blade rod.

[0012] Preferably, the plurality of bonding lines include a first bonding line and a second bonding line. The first bonding line and the second bonding line extend along a direction parallel to the axial direction of the carbon fiber blade rod or along a direction forming a preset angle with the axial direction of the carbon fiber blade rod, wherein the preset angle is greater than 30° and less than 90°, and the first bonding line and the second bonding line are symmetrically located on both sides of the carbon fiber blade rod. The first bonding line, the second bonding line, together with the first plate and the second plate located between the first bonding line and the second bonding line, form a blade rod accommodating space.

[0013] Preferably, the plurality of bonding lines includes a third bonding line that extends along the outline of the nonwoven fabric leaf blade. The third bonding line intersects with the first bonding line to form a first upper bonding point and a first lower bonding point. The third bonding line intersects with the second bonding line to form a second upper bonding point and a second lower bonding point. An opening is formed between the first lower bonding point and the second lower bonding point, serving as the port of the blade accommodating space for placing the carbon fiber blade.

[0014] Preferably, the third junction line extends continuously between the first and second upper junctions and closes the end of the blade accommodating space relative to the open end.

[0015] Preferably, the carbon fiber blade has a first end for connection with the ball support and a second end opposite to the first end. The carbon fiber blade has a tapered structure from the first end to the second end. The width of the first end ranges from 2.41 to 2.80 mm, the width of the second end ranges from 0.61 mm to 0.71 mm, the thickness of the first end ranges from 0.60 to 0.65 mm, and the length of the carbon fiber blade is 74.00 to 76.00 mm.

[0016] The second aspect of this utility model provides an artificial badminton shuttlecock, the main feature of which is that it includes a shuttlecock base and the blades, wherein the carbon fiber blade shafts of the blades are inserted into the shuttlecock base.

[0017] Preferably, the plurality of blades are evenly inserted on the ball support, and the longitudinal central axis of the blade rod in each blade is perpendicular to the plane of the ball support.

[0018] Preferably, the plurality of blades are evenly inserted on the ball support, and the longitudinal central axis of the blade rod in each blade is inclined relative to the plane of the ball support at an angle of 87.75° to 88.5°, and the anti-inclination value of each blade is 3 to 4.5.

[0019] Preferably, the artificial shuttlecock comprises 14 to 16 blades, with the bristles of adjacent blades partially overlapping or not overlapping at all.

[0020] This invention relates to artificial badminton shuttlecock blades and shuttlecocks. It creatively combines non-woven fabric blades and carbon fiber shafts to form artificial blades, achieving the mechanical strength of natural feathers while maintaining a similar weight. Simultaneously, the tip of the carbon fiber shaft is positioned below the non-woven fabric blade, preferably within a preset range of 1-5mm. This protects the tip of the carbon fiber shaft from injury, preventing injury to the user. Furthermore, positioning the tips of the carbon fiber shaft and non-woven fabric blades within this preferred range allows for better adjustment of the artificial shuttlecock's center of gravity, facilitating a more scientific weight distribution. (This is the other aspect mentioned.) Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the embodiments are briefly introduced below.

[0022] Figure 1 This is a front view of the artificial badminton shuttlecock of this utility model.

[0023] Figures 2 to 3 These are three-dimensional views of the artificial badminton shuttlecock of this utility model from different angles.

[0024] Figure 4 This is a top view of the artificial badminton shuttlecock of this utility model.

[0025] Figures 5 to 6 This is a schematic diagram of blades with different anti-slant angles.

[0026] Figure Labels

[0027] 1. Shuttlecock base; 2. Artificial shuttlecock blade; 3. Carbon fiber blade shaft; 4. Non-woven fabric blade; 5. First opening; 6. Second opening; 7. First connecting line; 8. Second connecting line; 9. Third connecting line; 10. First lower intersection point; 11. Second lower intersection point. Detailed Implementation

[0028] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0029] like Figures 1 to 4 The image shows a specific embodiment of an artificial badminton shuttlecock provided by this utility model. The artificial badminton shuttlecock includes a base 1 and 15 artificial badminton blades 2. In this embodiment, each artificial badminton blade 2 includes non-woven fabric blades 4 and carbon fiber blades 3. The non-woven fabric blades 4 are attached to the carbon fiber blades 3, and the non-woven fabric blades 4 are shaped like simulated feathers. The carbon fiber blades 3 are inserted into the base 1. The lower parts of each carbon fiber blade 3 are connected and fixed by two connecting lines.

[0030] To ensure the relative weight consistency between the artificial badminton shuttlecock blades and natural blades, this invention creatively combines non-woven fabric blades and carbon fiber shafts to form the artificial blades. While maintaining a substantially similar weight, it also achieves or exceeds the mechanical strength of natural feathers. The non-woven fabric blades can be made of lightweight non-woven fabric, and the carbon fiber shafts can be made of carbon fiber.

[0031] In the artificial shuttlecock and corresponding artificial shuttlecock blades of this utility model, the orientation is... Figure 1 The direction in which the shuttlecock base 1 extends is defined by directional qualifiers such as "downward," "towards," or "below," indicating that the shuttlecock base 1 is located at the bottom of the entire artificial shuttlecock; away from... Figure 1 The direction of the extension of the sphere 1 is defined by directional qualifiers such as "upward", "towards", "above", etc., so it can be known that the non-woven fabric leaf 4 is located at the top of the entire artificial shuttlecock, and the top of the shuttlecock base 1 is connected to the bottom of the artificial shuttlecock leaf 1.

[0032] like Figure 1 and Figure 2As shown, the nonwoven fabric blade 4 has a pointed tip at its top, which is 1-5 mm higher than the end of the carbon fiber blade. In the assembled artificial badminton blade 2, the top of the carbon fiber blade is located below the nonwoven fabric blade 4. This invention provides a preferred preset distance range through multiple tests, namely 1-5 mm, more preferably 2-3.5 mm, for example, 2 mm, 3 mm, etc. Within this preferred preset distance range, on the one hand, the tip of the carbon fiber blade is protected, which can better prevent the tip of the carbon fiber blade from piercing the user and avoid sports injuries; on the other hand, setting the tips of the carbon fiber blade and the nonwoven fabric blade within this preferred preset range can better adjust the center of gravity of the entire artificial badminton shuttlecock and make it easier to scientifically distribute the weight of each part of the artificial badminton shuttlecock.

[0033] like Figures 1 to 4 As shown, the nonwoven fabric blade 4 is provided with a first opening 5 and a second opening 6. The first opening 5 is located on the first side of the carbon fiber blade 3, and the second opening 6 is located on the second side of the carbon fiber blade 3, with the first side and the second side opposite to each other. In this embodiment, the first opening 5 and the second opening 6 are symmetrically distributed on both sides of the carbon fiber blade 3. The first opening 5 and the second opening 6 can overcome the influence of the Coriolis force on the flight trajectory of the artificial badminton shuttlecock. The number of the first opening, the number of the second opening, and the symmetry of the first and second openings can be appropriately adjusted; this invention does not impose limitations in this regard. In fact, a more effective method to overcome the Coriolis force is to reverse the angle.

[0034] In an embodiment of this utility model, the carbon fiber blade 3 includes a covering section covered by the non-woven fabric blade 4. The covering section has an adhesive portion that is bonded to the non-woven fabric blade 4 and an independent portion that is not connected to the non-woven fabric blade 4. The adhesive portion is located above the independent portion in the axial direction of the carbon fiber blade 4.

[0035] In an embodiment of this utility model, the nonwoven fabric blade 4 is composed of two pieces, namely, a first piece and a second piece. The first piece and the second piece are overlapped and disposed on both sides of the carbon fiber blade 4. The carbon fiber blade 4 is located in the interlayer between the first piece and the second piece. The first piece and the second piece are bonded together by three kinds of bonding lines.

[0036] In an embodiment of this invention, the nonwoven fabric blade 4 further includes two third pieces, one of which is located between the first piece and the carbon fiber blade, and the other is located between the second piece and the carbon fiber blade. The third pieces are configured to at least cover the top end of the carbon fiber blade. Therefore, in this invention, the nonwoven fabric blade 4 can preferably be composed of two to five pieces.

[0037] like Figures 1 to 4 As shown, the three bonding lines include a first bonding line 7 and a second bonding line 8. The first bonding line 7 and the second bonding line 8 extend along a direction parallel to the axial direction of the carbon fiber blade 3, and the first bonding line 7 and the second bonding line 8 are symmetrically located on both sides of the carbon fiber blade 3. The first bonding line 7, the second bonding line 8, together with the first and second plates located between the first bonding line 7 and the second bonding line 8, form a blade housing space. The portion of the carbon fiber blade 3 located within the blade housing space is the covering section of the carbon fiber blade.

[0038] The extension direction of the first bonding line 7 and the second bonding line 8 can also be set to extend along a direction that forms a preset angle with the axial direction of the carbon fiber blade, wherein the preset angle is >30° and <90°.

[0039] In this embodiment, a third bonding line 9 is also included. The third bonding line 9 extends along the outline of the nonwoven fabric blade 4. The third bonding line 9 intersects with the first bonding line 7 to form a first upper intersection point and a first lower intersection point 10. The third bonding line 9 intersects with the second bonding line 8 to form a second upper intersection point and a second lower intersection point 11. An opening is formed between the first lower intersection point 10 and the second lower intersection point 11, which serves as the port of the blade accommodating space for placing the carbon fiber blade 4.

[0040] In this embodiment, the third connecting line 9 extends continuously between the first and second upper junctions and closes the end of the blade accommodating space relative to the open end.

[0041] The first bonding line, the second bonding line, and the third bonding line can be either dashed lines as shown in this embodiment or solid lines.

[0042] Based on the above design, damaged feathers in this artificial shuttlecock can be easily replaced. For example, the damaged feathers can be removed, glue can be applied to the carbon fiber stem 4, and the shuttlecock can be inserted into the stem housing through the opening. The feathers and stem can then be pressed together. After the glue dries, the artificial shuttlecock can be reused. Therefore, only the feathers and glue included with the artificial shuttlecock or purchased separately are needed for quick replacement. The bonding lines in this invention can be formed on the non-woven fabric using high-frequency or ultrasonic welding technology and glue, ensuring strength and shape accuracy.

[0043] In this embodiment, the carbon fiber blade has a first end for connecting to the ball support and a second end opposite to the first end. The carbon fiber blade has a tapered structure from the first end to the second end. The width of the first end ranges from 2.41 to 2.80 mm, the width of the second end ranges from 0.61 mm to 0.71 mm, the thickness of the first end ranges from 0.60 to 0.65 mm, and the length of the carbon fiber blade is 74.00 to 76.00 mm.

[0044] In the artificial badminton shuttlecock of this invention, 15 blades are evenly inserted into the shuttlecock base 1. The longitudinal central axis of the blade shaft in each blade is inclined relative to the plane of the shuttlecock base at an angle of 87.75° to 88.5°, and the anti-slant value of each blade is 3 to 4.5. In addition to anti-slant insertion, the longitudinal central axis of the blade shaft in each blade can also be perpendicular to the plane of the shuttlecock base.

[0045] Taking 15 blades as an example, all 15 blades are inserted into the ball support at the same angle. Preferably, the longitudinal central axis of the blade rod is inclined at an angle of 87.75° to 88.5° relative to the ball support plane, forming a reverse tilt value of 3 to 4.5.

[0046] In the field of badminton, "opposite angle" is a commonly used term that refers to the difference between the longitudinal central axis of a single blade of a shuttlecock and the longitudinal central axis of the opposite blade of a single blade of a shuttlecock, as viewed from the same observation point, and the plane of the shuttlecock base (the cross-section of the shuttlecock base).

[0047] Through repeated testing of badminton shuttlecocks with different anti-slant values, this invention provides an optimal anti-slant value of 3 to 4.5, with an even more optimal value of 4, which can effectively overcome the influence of the Coriolis force on the flight trajectory of the artificial badminton shuttlecock.

[0048] from Figure 5Viewed from the same observation angle, two blades facing each other have a longitudinal central axis at an angle of 88° to the shuttlecock base plane, while the longitudinal central axis of the opposite blade has an angle of 92°. Therefore, the blade anti-slant angle of this shuttlecock is 88° - 92° = -4°. Taking a positive value of 4°, this is called anti-slant 4. For a shuttlecock with anti-slant 4, from the observation angle facing any blade, the longitudinal central axis of the blade in each blade has an inclination angle of 88° relative to the shuttlecock base plane.

[0049] from Figure 6 Viewed from the same observation angle, two blades facing each other have a longitudinal central axis at an angle of 85° to the shuttlecock base plane, while the longitudinal central axis of the opposite blade has an angle of 95° to the shuttlecock base plane. Therefore, the blade anti-slant angle of this shuttlecock is 85° - 95° = -10°. Taking a positive value of 10°, this is called anti-slant 10. For a shuttlecock with anti-slant 10, from the observation angle facing any blade, the longitudinal central axis of the blade in each blade has an inclination angle of 85° relative to the shuttlecock base plane.

[0050] This invention provides flight side-flight performance results for different anti-slant values, as shown in Table 1 below.

[0051] Table 1

[0052]

[0053] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. An artificial badminton shuttlecock blade, characterized in that, It includes a nonwoven fabric blade and a carbon fiber blade rod, wherein the nonwoven fabric blade is attached to the carbon fiber blade rod, and the nonwoven fabric blade has a pointed tip at the top, the pointed tip of the nonwoven fabric blade being 1 to 5 mm higher than the end of the carbon fiber blade rod by a predetermined distance.

2. The artificial shuttlecock blade according to claim 1, characterized in that, The preset distance is 2 to 3.5 mm.

3. The artificial shuttlecock blade according to claim 1, characterized in that, The nonwoven fabric blade is provided with at least one first opening and at least one second opening. The at least one first opening is located on the first side of the carbon fiber blade rod, and the at least one second opening is located on the second side of the carbon fiber blade rod. The first side and the second side are opposite to each other.

4. The artificial shuttlecock blade according to claim 1, characterized in that, The carbon fiber blade includes a covering section covered by the nonwoven fabric blade, the covering section having at least one adhesive portion bonded to the nonwoven fabric blade and at least one independent portion not connected to the nonwoven fabric blade, the adhesive portion being located above the independent portion in the axial direction of the carbon fiber blade.

5. The artificial shuttlecock blade according to any one of claims 1 to 4, characterized in that, The nonwoven fabric blade includes at least one first sheet and at least one second sheet, the first sheet and the second sheet being disposed overlappingly on both sides of the carbon fiber blade rod, and the first sheet and the second sheet being bonded together by several bonding lines.

6. The artificial shuttlecock blade according to claim 5, characterized in that, The nonwoven fabric blade includes at least one third piece, which is located between the first piece and the carbon fiber blade rod or between the second piece and the carbon fiber blade rod, and the third piece is configured to at least cover the top end of the carbon fiber blade rod.

7. The artificial shuttlecock blade according to claim 5, characterized in that, The plurality of bonding lines include a first bonding line and a second bonding line. The first bonding line and the second bonding line extend along a direction parallel to the axial direction of the carbon fiber blade rod or along a direction at a predetermined angle to the axial direction of the carbon fiber blade rod. The predetermined angle is greater than 30° and less than 90°. The first bonding line and the second bonding line are symmetrically located on both sides of the carbon fiber blade rod. The first bonding line, the second bonding line, together with the first plate and the second plate located between the first bonding line and the second bonding line, form a blade rod accommodating space.

8. The artificial shuttlecock blade according to claim 7, characterized in that, The plurality of bonding lines include a third bonding line, which extends along the outline of the nonwoven fabric blade. The third bonding line intersects with the first bonding line to form a first upper bonding point and a first lower bonding point. The third bonding line intersects with the second bonding line to form a second upper bonding point and a second lower bonding point. An opening is formed between the first lower bonding point and the second lower bonding point, which serves as the port of the blade accommodating space for placing the carbon fiber blade.

9. The artificial shuttlecock blade according to claim 8, characterized in that, The third junction line extends continuously between the first and second upper junctions and closes the end of the blade accommodating space relative to the open end.

10. The artificial shuttlecock blade according to claim 1, characterized in that, The carbon fiber blade has a first end for connection with a ball support and a second end opposite to the first end. The carbon fiber blade has a tapered structure from the first end to the second end. The width of the first end ranges from 2.41 to 2.80 mm, the width of the second end ranges from 0.61 mm to 0.71 mm, the thickness of the first end ranges from 0.60 to 0.65 mm, and the length of the carbon fiber blade is 74.00 to 76.00 mm.

11. An artificial badminton shuttlecock, characterized in that, It includes a ball support and several blades according to any one of claims 1 to 10, wherein the carbon fiber blade shaft is inserted into the ball support.

12. The artificial shuttlecock according to claim 11, characterized in that, The aforementioned blades are evenly inserted on the ball support, and the longitudinal central axis of the blade rod in each blade is perpendicular to the plane of the ball support.

13. The artificial shuttlecock according to claim 11, characterized in that, The aforementioned blades are evenly inserted on the ball support, and the longitudinal central axis of the blade rod in each blade is inclined relative to the plane of the ball support at an angle of 87.75° to 88.5°, and the anti-inclination value of the blade is 3 to 4.

5.

14. The artificial shuttlecock according to claim 11, characterized in that, The artificial shuttlecock comprises 14 to 16 blades, with the bristles of adjacent blades partially overlapping or not overlapping at all.

Images