Claims
- 1. A sports racket frame made of composite material, comprising:
- a head frame,
- a shaft portion, joined to said head frame,
- said head frame having a hollow tubular support wall,
- said hollow tubular support wall having an upper face and a lower face, in spaced relationship,
- said upper face and said lower face having indentations at predetermined intervals,
- a cemented portion integrally engaged to said upper face and said lower face over each of said indentations,
- wherein each of said indentations and said cemented portion form the circumference of a string hole in said head frame.
- 2. The sports racket frame in accordance with claim 1, wherein,
- said upper face and said lower face are each formed by a layer of fiber fabric,
- each said fiber fabric layer having a plurality of said indentations formed inwardly at predetermined intervals,
- each of said indentations being associated with a cemented portion located at an outer side of said layer,
- said each of said indentations and said cemented portion forming a tubular support wall for said string hole.
- 3. The sports racket frame in accordance with claim 2, wherein said indentations, said cemented portions, and said fiber fabric layer are made integrally and simultaneously as a unitary body.
Parent Case Info
This is a division of application Ser. No. 07/739,366 filed Aug. 2, 1991 now patented.
US Referenced Citations (7)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0168993 |
Jan 1986 |
EPX |
0212014 |
Mar 1987 |
EPX |
2056863 |
Mar 1981 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
739366 |
Aug 1991 |
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