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. 18, 2013
Filed:
Sep. 24, 2010
Tomio Kumamoto, Kobe, JP;
Tomio Kumamoto, Kobe, JP;
SRI Sports Limited, Kobe-Shi, JP;
Abstract
In this manufacturing method, a tubular bodyhaving a ribprovided therein is obtained. The manufacturing method includes the steps of: preparing a mandreldivided into two or more divided bodies dalong a longitudinal direction of the mandrel; winding a prepreg rfor a rib around at least one of the divided bodies d; combining all the divided bodies dto obtain a first intermediate bodyafter the step of winding the prepreg rfor the rib; winding a prepreg gfor the outer peripheral part around an outside of the first intermediate bodyto obtain a second intermediate body; heating the second intermediate body to obtain a cured laminate; and extracting the mandrelfrom the cured laminate. Preferably, the mandrel is equally divided in a circumferential direction. Preferably, a winding start end part tof the prepreg rfor the rib and a winding finish end part tthereof overlap with each other.