Non-woven net racket structure, beach rackets, and Pique rackets

Abstract

A non-woven racket includes: a frame, a racket face and / or a racket neck, and a grip, wherein the racket face is located above and below the hollow area of ​​the frame; the frame and racket face are directly connected to the grip; or the frame, racket face, and grip are integrated via the racket neck. The racket's frame, racket face, and / or racket neck, as well as the grip structure, combine the advantages of both carbon fiber and metal materials. The metal material is designed as a thin sheet and overlaps with the carbon fiber layers, effectively solving the problem of interlayer delamination caused by the significant difference in volume expansion coefficients between different materials. This results in a racket that is lightweight, resilient, has strong ball control stability, excellent shock absorption and impact resistance, and a unique hitting feel. Furthermore, the secondary drilling process prevents burrs on the racket surface, improving manufacturing yield.

Claims

1. A racket for non-woven nets, the racket comprising: The racket includes a frame, a racket face, and a grip, wherein the racket face is positioned above and below the openwork area of ​​the racket frame; the racket frame and racket face are directly assembled with the grip. The racket is characterized in that: the frame, face and grip of the non-woven net racket are all composed of carbon fiber layers and at least one layer of metal sheet overlapping each other, wherein the carbon fiber layer is at least one layer of carbon fiber prepreg, and each material layer is covered by a prepreg matrix. After the racket is pre-formed into a non-woven net racket, it is then placed in a mold and cured by heating and pressing to form a non-woven net racket. The transverse cross section of the entire racket has a structure similar to tree rings or a sandwich structure depending on the part.

2. The racket with non-woven net as described in claim 1, wherein the thickness of the carbon fiber layer is greater than the thickness of the metal sheet, and the layers are overlapped.

3. The racket with a non-woven net as described in claim 1, wherein the metal sheet is sheet-like or mesh-like.

4. The racket with non-woven net as described in claim 1, wherein the prepreg matrix is ​​made of thermosetting epoxy resin (TS) or thermoplastic (TP).

5. The racket with non-woven net as described in claim 1, wherein the metal sheet is selected from one of aluminum, aluminum alloy, copper, iron, steel, titanium, titanium alloy, and magnesium-aluminum alloy, and its thickness is less than 200µm (0.0079 inch), and it overlaps with the fiber layer, and each material layer is covered by a prepreg matrix.

6. The racket with non-woven net as described in claim 5, wherein the thickness of each layer of the metal sheet is preferably 6µm (0.0002 inch).

7. The racket with non-woven net as described in claim 1, wherein the overlapping carbon fiber layers and at least one metal sheet may be disposed on the outermost layer, or the carbon fiber layer may be disposed on the outermost layer.

8. The racket with non-woven net as described in claim 1, wherein the racket is further provided with a neck, the neck of which integrates the frame, the racket face and the grip, and a cushioning material is provided between the racket face, and a reinforcing material and / or a cushioning material is provided between the neck structure, the frame structure and the grip structure.

9. A beach racket having a frame structure as described in any one of claims 1 to 8 for a non-woven net racket, the frame structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles a sandwich structure.

10. A beach racket having a neck structure as described in claim 8 for a non-woven net racket, the neck structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles an annual ring structure.

11. A beach racket having a grip structure as described in any one of claims 1 to 8 for a non-woven net racket, the grip structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles an annual ring structure.

12. A beach racket having a racket face structure as described in any one of claims 1 to 8 of a non-woven net racket, the racket face structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which is similar to a sandwich structure.

13. A Pike racket having a frame structure in a non-woven racket as described in any one of claims 1 to 8, the frame structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles a sandwich structure.

14. A Pick racket having a neck structure in a non-woven racket as described in claim 8, the neck structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles an annual ring structure.

15. A Pick racket having a grip structure in a non-woven net racket as described in any one of claims 1 to 8, the grip structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which resembles an annual ring structure.

16. A Pike racket having a racket face structure as described in any one of claims 1 to 8 for a non-woven net racket, the racket face structure comprising layers of carbon fiber and at least one thin metal sheet overlapping each other, the cross-section of which is similar to a sandwich structure.

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