An artificial hair sheet

Abstract

The utility model discloses a kind of artificial hair pieces, relate to sports goods technical field, the overall length of artificial hair piece is 40-76mm, and including artificial hair pole and artificial blade;Artificial hair pole is by the carbon fiber cloth of multiple layers of surface all pre-impregnation resin heating solidification piece structure, and it is cut into rod-shaped structure again;Artificial blade includes a support framework, part of structure of artificial hair pole is combined together with support framework, another part of structure is exposed on the outside of support framework, can guarantee whole artificial hair piece not only light in quality, elasticity, rigidity, tenacity, impact strength, shear resistance, fatigue resistance, service life is not lower than the standard of natural feather hair piece.

Description

Technical Field

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

[0002] The main cost of badminton shuttlecocks comes from the feathers themselves. Natural feathers on shuttlecocks are made from the wing feathers of geese and ducks. The price of natural feathers is subject to the growth cycle and breeding volume of geese and ducks, so the cost of raw materials for natural shuttlecocks is relatively high. Moreover, the storage and production processes of natural feathers are more complicated, thus the processing costs are also relatively high.

[0003] Furthermore, natural feathers suffer from inconsistent structure; while synthetic feathers, made from readily available and unlimited industrial raw materials, benefit from the consistency of these materials, ensuring the uniformity of the synthetic feathers. However, the biggest challenge in synthetic feather production lies in balancing strength, elasticity, rigidity, toughness, blade stiffness, and weight. Achieving a weight that meets the demands of badminton often results in insufficient strength, elasticity, and stiffness. Utility Model Content

[0004] The purpose of this invention is to provide an artificial feather to solve the problems existing in the prior art, ensuring that the entire artificial feather is not only lightweight, but also has elasticity, rigidity, toughness, impact resistance, shear strength, fatigue resistance, and service life that are no less than the standards of natural feathers.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides an artificial hair piece, the overall length of which is 40-76mm, and includes an artificial hair rod and artificial blades;

[0006] The artificial hair rod is a rod-shaped structure made by heating and curing carbon fiber cloth, which includes at least one layer of carbon fiber cloth with a surface pre-impregnated with resin, into a sheet structure, and then cutting it.

[0007] The artificial blade includes a support frame, with a portion of the artificial bristle structure integrated with the support frame and another portion exposed on the outside of the support frame.

[0008] Optionally, the support frame is made of carbon fiber cloth with a surface pre-impregnated with resin and cured by heat.

[0009] When the support frame is made of carbon fiber cloth with pre-impregnated resin on the surface and cured by heating, the artificial hair rod is bonded to the carbon fiber cloth with pre-impregnated resin on the surface used to make the support frame, and after being cured by heating, it becomes an integral part of the support frame.

[0010] Optionally, a patch is attached to the surface of the support frame.

[0011] Optionally, the patch is a plastic sheet or a meltblown nonwoven fabric, wherein the thickness of the meltblown nonwoven fabric is 0.05-2.5mm, and the thickness of the plastic sheet is 0.01-2.5mm.

[0012] Optionally, the patch is a foamed sheet, which includes, but is not limited to, pearl cotton sheets or composite pearl cotton sheets. The thickness of the pearl cotton sheet is 0.02-2.0 mm, and the thickness of the composite pearl cotton sheet is 0.02-2.5 mm.

[0013] Optionally, the surface of the support frame is sprayed with a layer of meltblown nonwoven fabric, the thickness of which is 0.05-2.5mm.

[0014] Optionally, the supporting frame is a hollowed-out mesh frame structure, and a thin layer is provided on at least one side of the mesh frame structure. The thin layer includes, but is not limited to, a plastic film or a thin cloth.

[0015] Optionally, the surface of the wire frame structure is connected to the thin layer by adhesive or welding.

[0016] Optionally, the artificial blade has multiple ventilation holes, which are located on one or both sides of the artificial bristle.

[0017] Optionally, the portions of the same artificial blade located on both sides of the artificial feather shaft along the width direction are respectively a first blade structure and a second blade structure. Two adjacent artificial blades on the shuttlecock are respectively a first artificial blade and a second artificial blade. The first blade structure of the first artificial blade has a notch on the side facing away from its artificial feather shaft. A portion of the second blade structure of the second artificial blade is fitted into the notch, so that the first blade structure and the second blade structure between two adjacent artificial blades do not overlap.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] 1. The most difficult thing to achieve with artificial feathers is to reconcile the contradiction between their strength, elasticity, rigidity, toughness, fatigue resistance and their own weight. Artificial feather shafts are made by heating and curing multiple layers of carbon fiber cloth with resin impregnation on the surface into a sheet structure, and then cutting it into a rod structure. That is, by using carbon fiber materials to make carbon fiber structure artificial feather shafts, these artificial feather shafts are not only lightweight, but their impact resistance, elasticity, rigidity, toughness and service life meet or are no less than the standards of natural feather shafts.

[0020] 2. On the one hand, if the artificial badminton shuttlecock is made of carbon fiber shafts, the artificial blade material often cannot withstand the repeated impacts of the shuttlecock's instantaneous impact when hit at a speed of 300 km / h, resulting in repeated shearing forces exerted by the carbon fiber shaft on the artificial blade material. On the other hand, if the carbon fiber shaft and artificial blade are only bonded together with glue, their strength cannot withstand the repeated impacts of the instantaneous impact required for flight at 300 km / h, significantly reducing their fatigue resistance. Moreover, during repeated impacts, the joint between the carbon fiber shaft and the artificial blade cannot withstand the shearing force exerted by the carbon fiber shaft. Consequently, the carbon fiber shaft can easily peel off from the artificial blade material, and the sharp carbon fiber shaft could become a weapon that injures badminton players.

[0021] In this invention, the pre-fabricated artificial hair rod is attached to the carbon fiber cloth pre-impregnated with resin for making the support frame and then cured by heating. During the secondary molding process, the pre-impregnated resin used to make the support frame flows during heating and can be firmly bonded to the pre-fabricated carbon fiber artificial hair rod. Moreover, the artificial hair rod and the support frame form an integral whole, further improving the strength and impact resistance of the artificial hair rod. This structure effectively avoids the possibility of injury from the tip of an isolated carbon fiber artificial hair rod.

[0022] 3. Carbon fiber cloth with pre-impregnated resin is heated and cured to serve as the supporting skeleton for artificial blades. This makes the artificial blades not only lightweight, but also have impact resistance, elasticity, rigidity, toughness, and service life that are no less than the standards of natural feathers.

[0023] 4. The pre-fabricated artificial hair rod is attached to the carbon fiber cloth pre-impregnated with resin to make the support frame. After heating and curing, the part where the support frame and the artificial hair rod are combined becomes part of the artificial hair rod. The two become a whole, which can reduce the cross-sectional area of ​​this part of the artificial hair rod structure, while still being able to withstand the repeated impact of the instantaneous impact force when flying at a speed of 300 km / h.

[0024] 5. The supporting frame is a hollow mesh frame structure. On one side surface of the mesh frame structure, there is a thin layer, including but not limited to plastic film or cloth, making the entire artificial leaf resemble the wing structure of insects such as dragonflies. The wing structure of insects such as dragonflies has many properties suitable for flight, such as high strength, good rigidity, good flexibility, good elasticity, and light weight. It also has good impact resistance, shear resistance, fatigue resistance, and long service life. By setting the supporting frame as a mesh frame structure and combining it with a thin layer, this utility model can imitate the wing structure of insects such as dragonflies, achieving a biomimetic effect, and making the entire artificial leaf more suitable for the characteristics and needs of badminton.

[0025] 6. Ventilation holes are opened on the surface of the artificial blades. The ventilation holes are located on one or both sides of the artificial feather shaft, so that some airflow can pass through the ventilation holes during the flight of the artificial shuttlecock. In this way, the artificial shuttlecock will not float during the flight after being hit, thus improving the feel of hitting the artificial shuttlecock.

[0026] 7. Furthermore, by combining the two adjacent artificial feather pieces without overlapping areas, the artificial shuttlecock can be guaranteed to not float during flight, significantly improving the feel of hitting the artificial shuttlecock. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 Example 1 is a schematic diagram of the structure of the artificial fur patch disclosed in this utility model;

[0029] Figure 2 Example 2 is a schematic diagram of the structure of the artificial fur patch disclosed in this utility model;

[0030] Figure 3 Example 3 is a schematic diagram of the structure of the artificial fur patch disclosed in this utility model, wherein... Figure 3 (a) Figure 3 (b) and Figure 3 (c) These are the three types of deformations in this example;

[0031] Figure 4 This is a schematic diagram of a structure in an example of the present invention where there is no overlapping area between two adjacent artificial hair pieces;

[0032] Figure 5 This is a schematic diagram of the overall structure of an artificial shuttlecock made of artificial feathers in an example disclosed in this utility model.

[0033] Among them, 1-artificial hair, 2-artificial blade, 3-artificial hair rod, 4-ventilation hole, 5-support frame, 6-notch. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The purpose of this invention is to provide an artificial feather to solve the problems existing in the prior art, ensuring that the entire artificial feather is not only lightweight, but also has elasticity, rigidity, toughness, impact resistance, shear strength, fatigue resistance, and service life that are no less than the standards of natural feathers.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 5 As shown, this utility model provides an artificial feather head, the artificial feather head 1 having an overall length of 40-76mm, and including an artificial feather shaft 3 and artificial blades 2. The artificial feather shaft 3 is a rod-shaped structure formed by heating and curing carbon fiber cloth, including at least one layer of pre-impregnated resin on the surface, into a sheet structure, and then cutting it. This makes it easier to control the weight of the artificial feather shaft 3, and its strength and other mechanical properties are more in line with the needs of badminton. The fiber composite material has high tensile strength, and the resin adhesive forms a rigid matrix after curing, ensuring that the specific strength of the structure after the two are combined reaches the preset value. Furthermore, due to the presence of multiple layers of fiber cloth, the axial tensile or torsional properties can be specifically improved by adjusting the angle between the fibers in each layer of the fiber cloth. In summary, this invention can significantly improve the structural strength of the artificial feather shaft 3 while ensuring its lightweight.

[0038] The artificial blade 2 includes a support frame 5, which is composed of carbon fiber cloth with a layer of pre-impregnated resin. The part of the artificial bristle 3 that is combined with the support frame 5 is first bonded to at least one layer of pre-impregnated resin carbon fiber cloth, while another part of the structure is exposed on the outside of the support frame 5. After the two are heated together at high temperature and the resin is cured, the artificial bristle 3 and the support frame become a whole. The length of the artificial bristle 3 is greater than the length of the artificial blade 2, and part of the structure of the artificial bristle 3 is exposed on the outside of the support frame 5, that is, exposed on the entire outside of the artificial blade 2.

[0039] In this embodiment, artificial feather 1 is used to replace the natural feather in the prior art. Its raw materials are industrial products such as carbon fiber, which are easy to obtain and have low production costs. Not only are artificial feather 1 widely available, but because it is an industrial product, its own structural consistency is much higher than that of natural feathers, thus ensuring the consistency of the produced artificial shuttlecocks.

[0040] In summary, the most difficult aspect of artificial feather 1 is reconciling the contradiction between its strength, elasticity, rigidity, toughness, fatigue resistance, and service life and its own weight. The artificial feather shaft 3 disclosed in this invention is a rod-shaped structure made by heating and curing multiple layers of carbon fiber cloth pre-impregnated with resin into a sheet structure, which is then cut. That is, the artificial feather shaft 3, made from carbon fiber composite materials, is lightweight, and its impact resistance, elasticity, rigidity, toughness, service life, and fatigue resistance are no less than the standards of natural feather shafts. Furthermore, in this invention, the supporting skeleton 5 for the artificial blade 2, made of carbon fiber cloth pre-impregnated with resin and cured by heating, ensures that the artificial blade 2 is lightweight, and its impact resistance, elasticity, rigidity, toughness, fatigue resistance, and service life are no less than the standards of natural feather blades. Therefore, the prefabricated artificial hair rod 3 is attached to the carbon fiber cloth pre-impregnated with resin for making the support frame 5. After heating and curing, and after secondary molding, the support frame 5 and the artificial hair rod 3 become a whole. This can reduce the cross-sectional area of ​​this part of the artificial hair rod 3, thereby reducing the weight of this part of the structure and thus reducing the weight of the artificial hair. It can still withstand the repeated impact of the instantaneous impact force when flying at a speed of 300 km / h.

[0041] In one specific embodiment, the support frame 5 is made of carbon fiber cloth with a surface pre-impregnated with resin, which is then heat-cured. The artificial feather shaft 3 is bonded to the carbon fiber cloth used to make the support frame 5 and has a surface pre-impregnated with resin, and after heat curing, it becomes an integral part of the support frame 5. It should be noted that the weight of existing artificial feathers is very sensitive to the performance of artificial badminton shuttlecocks. The durability of artificial badminton shuttlecocks requires artificial feathers 1 to have a certain strength, and the strength of artificial feathers 1 largely depends on their weight. The lighter the weight, the higher the performance requirements of the material. For example, when meltblown nonwoven fabric is used as the material for artificial blades, its stiffness cannot meet the requirements of the high-speed movement of badminton shuttlecocks. During the hitting process, or after several hits, it cannot withstand the instantaneous impact force when the artificial badminton shuttlecock is hit at a flight speed of 300 km / h. Artificial blades made of meltblown nonwoven fabric are prone to shrinkage, which leads to the performance of artificial badminton shuttlecocks not being guaranteed.

[0042] Therefore, in this embodiment, the pre-fabricated artificial hair rod 3 is attached to the carbon fiber cloth pre-impregnated with resin for making the support frame 5 and cured by heating. During the secondary molding, the pre-impregnated resin used to make the support frame 5 flows during the heating process and can be firmly bonded to the pre-fabricated artificial hair rod 3 after curing. Moreover, the artificial hair rod 3 and the support frame 5 form an integral whole, further improving the overall strength and impact resistance of the artificial hair. The existing technology of bonding the carbon fiber hair rod with the artificial blade 2 is only done by adding glue to its surface. Its firmness cannot withstand the repeated impact of the instantaneous impact force when flying at a speed of 300 km / h. Its fatigue resistance is significantly reduced. Moreover, during repeated impacts, the joint between the carbon fiber hair rod and the artificial blade 2 cannot withstand the shear force of the carbon fiber hair rod.

[0043] In one specific embodiment, a patch is attached to the surface of the support frame 5. In this embodiment, the patch is a meltblown nonwoven fabric or a plastic sheet, which not only improves the durability and stiffness of the related materials attached to the carbon fiber frame, but also ensures that the weight of the artificial wool meets the requirements of artificial badminton shuttlecocks; and preferably, the thickness of the meltblown nonwoven fabric is 0.05-2.5mm, and the thickness of the plastic sheet is 0.01-2.5mm.

[0044] In this embodiment, the material type of the plastic sheet includes, but is not limited to, low-density polyethylene (LDPE), linear low-density polyethylene (LL-DPE), polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), polyamide (PA), extruded polyethylene (EPE), and BOPP film.

[0045] In this embodiment, the patch is a foamed sheet, which is lightweight and low-cost, further reducing the weight of the artificial blade 2. However, the biggest drawback of the foamed sheet is its weak shear resistance and stiffness. The foamed sheet includes, but is not limited to, pearl cotton sheets or composite pearl cotton sheets. Foamed pearl cotton sheets have low density and a thin overall structure, making the entire artificial blade 2 lighter and effectively suitable for badminton sports. Furthermore, the foamed pearl cotton sheets have good resilience, and their closed-cell structure effectively disperses impact force. In this embodiment, the support frame 5 serves as the support for the surface patch, not only improving the shear resistance, durability, and stiffness of the attached surface patch and extending its service life, but also ensuring the weight of the artificial feather 1 and meeting the performance requirements of artificial badminton. Preferably, the thickness of the pearl cotton sheet is 0.02-2.0 mm, and the thickness of the composite pearl cotton sheet is 0.02-2.5 mm.

[0046] In one specific embodiment, the surface of the support frame 5 is sprayed with a layer of meltblown nonwoven fabric, the thickness of which is 0.05-2.5mm.

[0047] In one specific embodiment, the supporting frame 5 has a hollowed-out mesh frame structure, further reducing the weight of the supporting frame and thus effectively reducing the overall weight of the artificial feather. A thin layer is applied to one side surface of the mesh frame structure. This thin layer includes, but is not limited to, a plastic film or a thin cloth. The plastic film includes, but is not limited to, a PE film. PE film is not only thin and lightweight, but also has good toughness, elasticity, and extensibility, resulting in a long service life. The thin cloth is a thin and lightweight fabric, such as silk. The thickness of the plastic film is 0.01-2.0 mm, and the thickness of the thin cloth is 0.02-2.0 mm. This makes the entire artificial leaf 2 resemble the wing structure of a dragonfly, similar to the wing structure of insects such as dragonflies. With high strength, rigidity, flexibility, elasticity, and light weight, this invention possesses numerous properties suitable for flight. By setting the supporting skeleton as a mesh frame structure combined with a thin layer, it can mimic the wing structure of insects such as dragonflies, achieving a biomimetic effect and making the entire artificial blade 2 more suitable for the characteristics and needs of badminton. Furthermore, by using a thin cloth attached to the surface of the hollowed-out skeleton, airflow can also pass through the thin cloth during flight, a semi-permeable property similar to that of natural feathers. Preferably, the mesh frame structure is connected to the thin layer on one side of its surface using adhesive or welding to ensure the connection strength between the mesh frame structure and the thin layer. Preferably, both surfaces of the mesh frame structure have a layer of plastic film, and the two layers of plastic film are welded together to achieve a firm bond with the mesh frame.

[0048] In this embodiment, through holes are provided on the support frame 5, which can further reduce the weight of the support frame 5.

[0049] In one specific embodiment, the artificial hair shaft 3 is made of composite materials including but not limited to carbon nanofiber composites to further reduce weight and improve the various properties of the artificial hair shaft.

[0050] In one specific embodiment, the support frame 5 is made of composite materials including but not limited to carbon nanofiber composites to further reduce weight and improve the performance of the artificial blade.

[0051] In one specific embodiment, the artificial blade 2 has multiple ventilation holes 4, which are located on one or both sides of the artificial shaft 3. The ventilation holes 4 penetrate the artificial blade 2 along its thickness direction. On the one hand, during flight, some airflow can pass through the ventilation holes 4, creating a pressure difference between the two sides of the artificial blade 2; on the other hand, the ventilation holes 4 can disperse airflow pressure, reducing excessive wind resistance experienced by the blade at high speeds. Preferably, the ventilation holes 4 are evenly distributed on both sides of the artificial shaft 3, thereby ensuring the stability of the artificial shuttlecock during high-speed flight. This prevents the artificial shuttlecock from drifting during flight after being hit, improving the feel of the shuttlecock when hit.

[0052] In one specific embodiment, the portions of the same artificial blade 2 located on both sides of the artificial feather shaft 3 along the width direction are respectively the first blade structure and the second blade structure. Two adjacent artificial blades 2 on the same shuttlecock are respectively the first artificial blade and the second artificial blade. The first blade structure of the first artificial blade has a notch 6 on the side facing away from its artificial feather shaft 3. A portion of the second blade structure of the second artificial blade is fitted into the notch 6, ensuring that the first and second blade structures between adjacent artificial blades 2 do not overlap, thus eliminating any overlapping area between adjacent artificial feathers. Furthermore, the ability for some airflow to pass through the vent 4 further ensures that the artificial shuttlecock does not drift during flight, significantly improving the feel of the shuttlecock when hitting it.

[0053] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0054] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A type of artificial hair, characterized in that, The overall length of the artificial hair piece is 40-76mm, and it includes an artificial hair rod and artificial blades; The artificial hair rod is a rod-shaped structure made by heating and curing carbon fiber cloth, which includes at least one layer of carbon fiber cloth with a surface pre-impregnated with resin, into a sheet structure, and then cutting it. The artificial blade includes a support frame, with a portion of the artificial bristle structure integrated with the support frame and another portion exposed on the outside of the support frame.

2. The artificial hair piece according to claim 1, characterized in that, The supporting frame is made of carbon fiber cloth with pre-impregnated resin on the surface, which is heat-cured. When the support frame is made of carbon fiber cloth with pre-impregnated resin on the surface and cured by heating, the artificial hair rod is bonded to the carbon fiber cloth with pre-impregnated resin on the surface used to make the support frame, and after being cured by heating, it becomes an integral part of the support frame.

3. The artificial hair piece according to claim 1 or 2, characterized in that, A patch is attached to the surface of the support frame.

4. The artificial hair piece according to claim 3, characterized in that, The patch is a plastic sheet or meltblown nonwoven fabric, wherein the thickness of the meltblown nonwoven fabric is 0.05-2.5mm, and the thickness of the plastic sheet is 0.01-2.5mm.

5. The artificial hair patch according to claim 3, characterized in that, The patch is a foamed sheet, which includes, but is not limited to, pearl cotton sheets or composite pearl cotton sheets. The thickness of the pearl cotton sheet is 0.02-2.0mm, and the thickness of the composite pearl cotton sheet is 0.02-2.5mm.

6. The artificial hair piece according to claim 1 or 2, characterized in that, The surface of the support frame is coated with a layer of meltblown nonwoven fabric, the thickness of which is 0.05-2.5 mm.

7. The artificial hair piece according to claim 2, characterized in that, The supporting frame is a hollowed-out mesh frame structure, and a thin layer is on at least one side of the mesh frame structure. The thin layer includes, but is not limited to, a plastic film or a thin cloth.

8. The artificial hair patch according to claim 7, characterized in that, The surface of the frame structure is connected to the thin layer by adhesive or welding.

9. The artificial hair piece according to claim 1, characterized in that, The artificial blade has multiple ventilation holes, which are located on one or both sides of the artificial bristle.

10. The artificial hair piece according to claim 1, characterized in that, The portions of the same artificial blade located on both sides of the artificial feather shaft along the width direction are respectively a first blade structure and a second blade structure. Adjacent artificial blades on a badminton shuttlecock are respectively a first artificial blade and a second artificial blade. The first blade structure of the first artificial blade has a notch on the side facing away from its artificial feather shaft. A portion of the second blade structure of the second artificial blade is fitted into the notch to ensure that the first blade structure and the second blade structure between adjacent artificial blades do not overlap.

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