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Racket frame

Inactive Publication Date: 2008-10-16
PAI CHIN DONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The main objective of the present invention is to provide a racket frame that can provide an advanced tensile force to the corresponding shafts.

Problems solved by technology

The players may feel vibrations transmitted form the head hoop (61) caused by impacts with balls and may feel uncomfortable when the vibrations are manifest.
However, the head hoop (61) becomes fragile since strength of the racket frame (60) will also be decreased by decreased area of the cross-section.
Dilemma situation as described above may be overcome by replacing a suitable material with suitable rigidity and strength to form the head hoop (61), but looking for another suitable material is not easy because the carbon fiber composite is generally recognized most suitable material nowadays.

Method used

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Examples

Experimental program
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Embodiment Construction

[0024]With reference to FIGS. 1 to 8, a racket frame in accordance with the present invention comprises a body and a handle (30).

[0025]The body has a head hoop (10), a connecting segment (20) and at least two through holes (12, 24, 24A, 24B, 24C, 24D).

[0026]The head hoop (10) may be elliptical, is used to connect with a string (11) and has an inner surface, a bottom end and two sidewalls. The string (11) is wound on the inner surface of the head hoop (10) in a crisscross manner.

[0027]The connecting segment (20) may be inverted triangle shaped, is connected with the head hoop (10) and has a yoke (21), two shafts (22) and a throat (23). The yoke (21) is formed on the bottom end of the head hoop (10). The shafts (22) may be arc shaped and are respectively mounted with the yoke (21), and each shaft (22) has an upper end, a lower end and two sidewalls. The upper ends of the shafts (22) are respectively connected to the yoke (21). The throat (23) is connected to the lower ends of the shaf...

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PUM

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Abstract

A racket frame has a head hoop, a connecting segment, at least two through holes and a handle. The head hoop has a bottom end and a string. The connecting segment is connected with the bottom end of the head hoop and has a yoke, two shafts and a throat. The yoke is formed on the bottom end of the head hoop. The shafts are respectively mounted with the yoke and each shaft has an upper end, a lower end and two sidewalls. The throat is connected to the lower ends of the shafts. The at least two through holes are formed respectively and symmetrically through the sidewalls of the head hoop or the sidewalls of the shaft between the upper end and the lower end. The handle is connected with the connecting segment and has a proximal end.

Description

[0001]The present invention is a continuation-in-part of application Ser. No. 11 / 786,502 filed on Apr. 12, 2007.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a racket frame, and more particularly to a racket frame that can provide an enhanced structure.[0004]2. Description of Related Art[0005]With reference to FIG. 9, a conventional racket frame (60) is made of carbon fiber composite and used for playing with a tennis ball or a paddleball and has a head hoop (61), a connecting segment (62) and a handle (63).[0006]The head hoop (61) is connected with a string (611) and has an inner surface, a bottom end and a cross-section. The string (611) is wound on the inner surface of the head hoop (61) in a crisscross manner. The cross-section of the head hoop (61) has an area, a width and a height.[0007]The connecting segment (62) is connected with the head hoop (61) and has a yoke (621), two shafts (622) and a throat (623). The yoke (621) is ...

Claims

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Application Information

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IPC IPC(8): A63B49/02
CPCA63B49/02A63B49/027A63B49/06A63B59/0092A63B60/52A63B60/54A63B49/03A63B60/50
Inventor PAI, CHIN-DONG
Owner PAI CHIN DONG