The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 1997
Filed:
Sep. 26, 1995
Shinji Yamamoto, Hiratsuka, JP;
Tatsuo Nishimoto, Hiratsuka, JP;
Abstract
A golf club shaft according to the present invention is formed by winding annularly and unitarily in an overlapping state a reinforcing layer of a resin film comprising an organic polymer around the outer surface of a club shaft body of a fiber-reinforced resin in a manner that the reinforcing layer extends in a limited range from a front end of the club shaft body to the portion thereof which is not less than 150 mm and not more than 500 mm distant therefrom. A method of manufacturing this golf club shaft has the steps of winding unitarily in an overlapping state a resin film formed out of an organic polymer and coated at one surface thereof which faces a club shaft body with a bonding agent around the outer surface of the club shaft body, which is formed cylindrically out of an uncured fiber-reinforced resin, in such a manner that the resin film extends between a front end of the club shaft body and the portion thereof which is not less than 150 mm and not more than 500 mm distant therefrom, and then thermally curing the resultant product.