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Core for racket string, racket string comprising such a core and corresponding manufacturing method

A core wire and string technology, which is used in the manufacture of stringed rackets, rackets, rayon, etc., can solve the problems that the method is difficult to industrialize and the core wire does not have strings.

Inactive Publication Date: 2012-10-10
BABOLAT VS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method described in this literature is difficult to be industrialized
In addition, the resulting core does not have the characteristics that allow it to be used as a racket string

Method used

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  • Core for racket string, racket string comprising such a core and corresponding manufacturing method
  • Core for racket string, racket string comprising such a core and corresponding manufacturing method
  • Core for racket string, racket string comprising such a core and corresponding manufacturing method

Examples

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Embodiment Construction

[0029] figure 1 The assembly 1 of the core wire 2 used to make the string of the racket is shown. The assembly 1 includes eight bobbins 4. A plurality of fibers 6, which may be called "multi-fibers", or unit threads are wound around each of the spools. In the following sections, for the sake of simplicity, it will be referred to as line 6.

[0030] It is possible to design and use a different number of coils from the example shown. Therefore, the diameter of the core wire 2 can be changed. All the fibers of thread 6 are of natural origin. It can also be specified that one or more of the fibers are of natural origin. Advantageously, the fiber can be made of silk, and the silk can be produced from silkworms, spiders, or transgenic animals capable of producing silk. In this regard, it will be noted that spider genes have been transplanted on goats and silkworms.

[0031] In the sense of the present invention, fibers of natural origin refer to processed or unprocessed silks deriv...

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Abstract

This core (2) for a racket string, in particular for a tennis racket string, comprises a thermoplastic matrix (24) in which filaments (22) are embedded, at least one of these filaments being of natural origin and the thermoplastic matrix (24) being made of a material which, at a temperature lower than a threshold temperature, at which the filaments (22) are not substantially damaged, has a viscosity making it suitable for an extrusion process. The matrix (24) comprises a plurality of strands that are helically twisted in a first direction, each of the strands comprising a plurality of filaments (22) of natural origin that are helically twisted in a second direction, which is or is not opposite to the first direction.

Description

Technical field [0001] The present invention relates to a core wire for a string of a racket, more particularly a core wire for a string of a tennis racket, a string of a racket including the core wire, and a method of manufacturing the core wire. Background technique [0002] Especially in the field of strings used in racket sports, in order to protect the environment as much as possible, people try to integrate natural materials into the strings. In addition, natural fibers such as silk are suitable for the mechanical strength of the strings used in tennis racquets and have better elasticity than synthetic fibers. For this reason, it is known that a plurality of silk fibers can be combined in one string. The silk-derived fibers of said type are completely natural. [0003] A method is known from the document GB 600424, according to which, once a plurality of silk fibers are gathered together, the thread thus obtained will pass through an extrusion head provided with a thermopla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B51/02D02G3/04D01D5/24B29C53/14B29C70/52D02G3/40D02G3/44
CPCA63B2209/023D02G3/444A63B51/02B29L2031/5245B29C70/521
Inventor 让-菲利普·翁尼斯罗斯蒙德·马耶凯瑟琳·塔蒂韦尔
Owner BABOLAT VS
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