Beach tennis racquet with hitting surface to simulate tennis strings
View Patent ↗A beach tennis racquet is disclosed having a handle and frame enclosing a striking element. The striking element is a composite comprising a core and a plurality of ultrathin carbon fiber layers that are fused into a solid surface of no more than two millimeters in thickness. The striking surface is centered in the frame of the racquet and inset from the frame in a manner similar to a tennis racquet.
1. A beach tennis racquet comprising:
a handle;
a frame attached to the handle having an inner wall, the frame defining a hitting area; and
a composite striking element located within the frame in the hitting area, the composite striking element comprising a non-woven core, first and second sheets of a material selected from fiberglass and carbon fiber applied to and covering first and second sides of the core, respectively, and third and fourth sheets of a material selected from fiberglass and carbon, fiber applied to and covering the first and second sheets, respectively;
wherein the third and fourth sheets have a surface area that is greater than a surface area of the first and second sheets such that a portion of the third and fourth sheets adheres to and covers a portion of the inner wall and forms a seal for the first and second sheets;
wherein a maximum thickness of the composite striking element is no greater than two millimeters.
2. The beach tennis racquet of claim 1 , wherein the composite striking surface has a coefficient of restitution of greater than 0.7.
3. The beach tennis racquet of claim 1 , wherein the third and fourth sheets have a surface area that is greater than a surface area of the first and second sheets.
4. The beach tennis racquet of claim 1 , further comprising fifth and sixth sheets of a material selected from fiberglass and carbon fiber, the fifth and sixth sheets applied to and covering the third and fourth sheets.
5. The beach tennis racquet of claim 4 , wherein the fifth and sixth sheets have a surface area that is greater than the surface area of the third and fourth sheets.
6. The beach tennis racquet of claim 5 , wherein the maximum thickness of the composite striking element is less than 1.5 millimeters.
7. The beach tennis racquet of claim 5 , wherein the maximum thickness of the composite striking surface is approximately one millimeter.
8. The beach tennis racquet of claim 1 , wherein the composite striking element is centered at an inner wall of the frame.
9. The beach tennis racquet of claim 1 , wherein the composite striking element includes holes located around a central area.