Ball coverings and sports balls

Abstract

The utility model relates to the field of ball manufacturing provides a ball skin, include: foam sheet, have front, side and back, the edge position of foam sheet's back is equipped with the backfolding groove, skin structure, including first covering portion, second covering portion and third backfolding part, first covering portion covers in the front of foam sheet, second covering portion is connected in first covering portion and covers in the side of foam sheet, third backfolding part is connected in second covering portion and covers in the backfolding groove of back of foam sheet. According to the ball skin of the embodiment of the application, the third backfolding part is connected to the second covering part and covers the backfolding groove of the back of the foam sheet, which increases the wrapping performance of the skin structure on the foam sheet, thereby improving the integrity of the ball skin, reducing the risk of cracking during the preparation process of the ball skin, and the risk of separation from the ball bladder during use.

Description

Technical Field

[0001] This utility model relates to the field of ball manufacturing, and more particularly to a ball skin and a sports ball. Background Technology

[0002] In the field of ball manufacturing, the ball panels, as key components of the ball, directly affect the quality and performance of the ball through their manufacturing process. Currently, the industry generally uses two mainstream processes to produce ball panels. One process uses hot-melt foam, precisely wrapping PU leather onto the front side of the foam using specific equipment to form the required ball panel shape; the other process uses glue to adhere and wrap the PU leather onto the front side of the foam, thus completing the ball panel production. However, both hot-melt foam and glue bonding methods essentially involve wrapping leather onto the front side of the foam. In actual large-scale production, the ball exhibits significant drawbacks. Because the wrapped area is subjected to various stresses, such as external pressure and stretching during ball panel preparation or use, the ball skin is highly prone to cracking. Once the ball's skin cracks, it can trigger a series of serious problems. Rainwater and other liquids can easily seep into the ball through the cracks, reducing the adhesion between the skin and the internal structure, which can cause the skin to detach. At the same time, cracking can also damage the overall structural integrity of the ball, making it less stable during movement. This seriously affects the user experience and performance of the ball, and also results in a large number of defective products being produced, increasing production costs and wasting resources. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the related art. To this end, this application proposes a ball skin that is connected to the second covering part and covers the back fold groove of the foam sheet through a third fold portion, thereby increasing the covering performance of the skin structure on the foam sheet, thereby improving the integrity of the ball skin, reducing the risk of cracking during the ball skin preparation process, and reducing the risk of separation from the ball bladder during use.

[0004] This application also proposes a sports ball.

[0005] A ball skin according to the first aspect of the present application includes: A foam sheet has a front, a side, and a back, and the back edge of the foam sheet has a fold groove. The skin structure includes a first covering portion, a second covering portion, and a third folded portion. The first covering portion covers the front side of the foam sheet; the second covering portion is connected to the first covering portion and covers the side side of the foam sheet; the third folded portion is connected to the second covering portion and covers the folded groove on the back side of the foam sheet.

[0006] According to the embodiments of this application, the ball skin is connected to the second covering part and covers the back of the foam sheet via the third fold-back part, thereby increasing the covering performance of the skin structure on the foam sheet, improving the integrity of the ball skin, reducing the risk of cracking during the ball skin preparation process, and reducing the risk of separation from the ball bladder during use.

[0007] According to one embodiment of this application, the first covering portion, the second covering portion, and the third folded portion are integrally formed structures.

[0008] According to one embodiment of this application, the skin structure is connected to the foam sheet via a hot-press molding process.

[0009] According to one embodiment of this application, the second covering portion and the third folded portion are arranged at an angle, wherein the angle is 100° to 110°.

[0010] According to one embodiment of this application, the length between the farthest end of the third fold portion and the back edge region is 2 mm to 4 mm.

[0011] According to one embodiment of this application, the thickness of the skin structure is 1 mm to 2 mm.

[0012] According to one embodiment of this application, the thickness of the foam sheet is 3 mm to 4 mm.

[0013] According to one embodiment of this application, the skin structure is a composite skin of polyurethane skin, polyvinyl chloride skin, or a combination thereof.

[0014] According to one embodiment of this application, the foam sheet is ethylene-vinyl acetate copolymer foam, rubber foam, or polyurethane foam.

[0015] A sports ball according to a second aspect embodiment of this application includes: Ball bladder; The aforementioned ball skin is connected to the ball bladder.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an enlarged structural schematic diagram of the ball skin provided in the embodiments of this application.

[0019] Figure 2 This is one of the structural schematic diagrams of the ball skin provided in the embodiments of this application.

[0020] Figure 3 This is the second schematic diagram of the structure of the ball skin provided in the embodiments of this application.

[0021] Figure 4 This is a cross-sectional structural diagram of the ball skin provided in the embodiments of this application.

[0022] Figure 5 This is a schematic diagram of the structure of the ball skin provided in the embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the structure of the ball skin provided in the embodiment of this application.

[0024] Figure label: 10. Foam sheet; 11. Front; 12. Side; 13. Back; 14. Fold-back groove; 20. Epidermal structure; 21. First covering part; 22. Second covering part; 23. Third fold part; Detailed Implementation

[0025] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0026] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] It should be noted that the ball used in this application can be any kind of ball, such as a football, basketball, volleyball, or rugby ball.

[0031] The following is combined Figures 1-6 This invention describes the ball skin and the sports ball.

[0032] A ball skin according to an embodiment of this application includes: The foam sheet 10 has a front 11, a side 12 and a back 13, and a folding groove 14 is provided at the edge of the back 13 of the foam sheet 10. The skin structure 20 includes a first covering part 21, a second covering part 22 and a third folding part 23. The first covering part 21 covers the front side 11 of the foam sheet 10; the second covering part 22 is connected to the first covering part 21 and covers the side side 12 of the foam sheet 10; the third folding part 23 is connected to the second covering part 22 and covers the folding groove 14 of the back side 13 of the foam sheet 10.

[0033] According to the embodiments of this application, the ball skin is connected to the second covering part 22 and covers the back side 13 of the foam sheet 10 by the third fold-back part 23, which increases the covering performance of the skin structure 20 on the foam sheet 10, thereby improving the integrity of the ball skin, reducing the risk of cracking during the ball skin preparation process, and reducing the risk of separation from the ball bladder during use.

[0034] Understandably, the foam sheet 10 is one of the basic materials constituting the ball skin. It has a certain degree of elasticity and softness, providing the ball with basic shape and cushioning performance. The fold groove 14 is located at the edge of the back side 13 of the foam sheet 10, providing a specific space and position for the subsequent wrapping of the skin structure 20, so that the skin structure 20 can be more tightly and firmly bonded to the foam sheet 10.

[0035] The skin structure 20 is an important part covering the surface of the foam sheet 10, and it includes a first covering part 21, a second covering part 22, and a third folded part 23. The first covering part 21 covers the front 11 of the foam sheet 10. The first covering part 21 can have good abrasion resistance and anti-slip properties to adapt to the use of balls in different scenarios. It can also be equipped with suitable colors and textures to meet consumers' needs for the appearance of the balls. The second covering part 22 is connected to the first covering part 21 and covers the side 12 of the foam sheet 10. It further enhances the protection of the foam sheet 10, so that the foam sheet 10 can be effectively cushioned and protected when it is impacted or squeezed by the side 12. The third folded part 23 is connected to the second covering part 22 and covers the folded groove 14 on the back 13 of the foam sheet 10. This unique design allows the skin structure 20 to wrap the foam sheet 10 more comprehensively and deeply.

[0036] During the ball manufacturing process, the tight wrapping of the foam sheet 10 by the outer skin structure 20 strengthens the connection between various parts, allowing for more even stress distribution and effectively reducing the risk of ball skin cracking. During use, this tight wrapping also enhances the adhesion between the ball skin and the bladder, reducing the risk of separation. Because the outer skin structure 20 comprehensively wraps the foam sheet 10, the ball skin is more stable overall. After assembly with the bladder, it maintains its relative position better and is less prone to separation due to frequent use and impacts, thus improving the ball's lifespan and performance stability, providing consumers with a superior user experience.

[0037] In addition, the third fold 23 can provide a good bonding position for the ball skin, thereby improving the connection stability between the bladder and the ball skin.

[0038] According to one embodiment of this application, the first covering portion 21, the second covering portion 22, and the third folded portion 23 are integrally molded structures. This integral molding avoids the weak points that may occur at the joints in traditional split structures. The integral molding structure makes the skin a single unit, with natural transitions and tight connections between the parts, enabling it to withstand greater external impacts and greatly improving the overall structural strength of the ball skin, providing more reliable protection for the ball.

[0039] According to one embodiment of this application, the skin structure 20 is connected to the foam sheet 10 by a hot pressing process.

[0040] The outer skin structure 20 is connected to the foam sheet 10 through a hot-press molding process. Under high temperature and high pressure, intermolecular forces are generated between the outer skin structure 20 and the foam sheet 10, achieving deep fusion. The connection formed by the hot-press molding process is more stable, can withstand greater external forces, and is less likely to separate from the foam sheet 10, greatly improving the durability of the ball skin.

[0041] In terms of sealing, the thermoforming process allows the skin structure 20 to fit tightly onto the surface of the foam sheet 10, including every tiny corner and edge. This effectively prevents rainwater, sweat, and other liquids from seeping into the interior of the skin, protecting the foam sheet 10 from liquid erosion and preventing it from softening and deforming due to water absorption, thus affecting the elasticity and overall performance of the skin.

[0042] According to one embodiment of this application, the second covering portion 22 and the third fold portion 23 are arranged at an angle of 100° to 110°. It is understood that the 100° to 110° angle between the second covering portion 22 and the third fold portion 23 allows stress to be evenly distributed between them, much like distributing force evenly across multiple support points. This significantly improves the fatigue resistance and durability of the skin structure 20, effectively extending the service life of the ball skin.

[0043] In some possible embodiments, the included angle is 105°.

[0044] According to one embodiment of this application, the length between the farthest end of the third fold portion 23 and the edge region of the back surface 13 is 2 mm to 4 mm.

[0045] The length between the farthest end of the third fold 23 and the edge region of the back surface 13 is greater than or equal to the length of the fold groove 14.

[0046] In terms of durability, the appropriate length between the farthest point of the third fold 23 and the edge region of the back 13 enhances the connection strength between the skin structure 20 and the foam sheet 10. During intense sports competitions, the ball is subjected to frequent external impacts and friction. A length of 2mm to 4mm ensures a firm connection between the third fold 23 and the edge region of the back 13, reducing the possibility of the skin structure 20 detaching or cracking, while also preventing stress concentration when the ball skin bends or deforms.

[0047] In some possible embodiments, the length of the third fold 23 between the farthest end of the edge region of the back surface 13 and the edge region of the back surface 13 is 3 mm.

[0048] According to one embodiment of this application, the thickness of the skin structure 20 is 1 mm to 2 mm.

[0049] In some possible embodiments, the thickness of the skin structure 20 is 1 mm.

[0050] According to one embodiment of this application, the thickness of the foam sheet 10 is 3 mm to 4 mm.

[0051] In some possible embodiments, the thickness of the foam sheet 10 is 3.8 mm.

[0052] According to one embodiment of this application, the skin structure 20 is a composite skin of polyurethane skin, polyvinyl chloride skin, or a combination thereof.

[0053] According to one embodiment of this application, the foam sheet 10 is an ethylene-vinyl acetate copolymer foam, a rubber foam, or a polyurethane foam.

[0054] A sports ball according to an embodiment of this application includes: Ball bladder; The aforementioned ball skin is connected to the bladder.

[0055] Understandably, the bladder can be made of rubber or similar materials with good elasticity and sealing properties. The bladder's main function is to store gas and provide basic elasticity and shape support for the entire ball.

[0056] The outer skin is attached to the bladder, and the outer skin can be glued to the bladder. It should be noted that because the outer skin of the ball uses the aforementioned material, it possesses all the technical effects mentioned above, which will not be elaborated upon here.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ball skin, characterized in that, include: The foam sheet (10) has a front (11), a side (12) and a back (13), and a fold groove (14) is provided at the edge of the back (13) of the foam sheet (10). The skin structure (20) includes a first covering part (21), a second covering part (22) and a third folding part (23). The first covering part (21) covers the front (11) of the foam sheet (10). The second covering part (22) is connected to the first covering part (21) and covers the side (12) of the foam sheet (10). The third folding part (23) is connected to the second covering part (22) and covers the folding groove (14) of the back (13) of the foam sheet (10).

2. The ball skin according to claim 1, characterized in that, The first covering part (21), the second covering part (22) and the third folded part (23) are integrally formed structures.

3. The ball skin according to claim 1, characterized in that, The skin structure (20) is connected to the foam sheet (10) by a hot pressing molding process.

4. The ball skin according to claim 1, characterized in that, The second covering portion (22) and the third folded portion (23) are arranged at an angle, wherein the angle is 100° to 110°.

5. The ball skin according to claim 1, characterized in that, The length between the third fold (23) and the farthest end of the edge region of the back surface (13) and the edge region of the back surface (13) is 2 mm to 4 mm.

6. The ball skin according to claim 1, characterized in that, The thickness of the skin structure (20) is 1 mm to 2 mm.

7. The ball skin according to claim 1, characterized in that, The thickness of the foam sheet (10) is 3 mm to 4 mm.

8. The ball skin according to claim 1, characterized in that, The skin structure (20) is a composite skin of polyurethane skin, polyvinyl chloride skin or a combination thereof.

9. The ball skin according to claim 1, characterized in that, The foam sheet (10) is ethylene-vinyl acetate copolymer foam, rubber foam or polyurethane foam.

10. A sports ball, characterized in that, include: Ball bladder; The ball skin according to any one of claims 1 to 9, wherein the ball skin is connected to the ball bladder.

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