Title:
RACQUET STRING
Document Type and Number:
WIPO Patent Application WO/2017/082015
Kind Code:
A1
Abstract:
The present invention is configured so that an advantage can be obtained by forming a hollow section and durability can be increased. A racquet string (10) is configured provided with a core yarn (11) and a plurality of side yarns (12) wrapped on the outer peripheral side of the core yarn. The core yarn is provided with a solid-core section (20) formed in a prescribed region including a center axis position (C), and a plurality of hollow sections (21) formed around the solid-core section and extending in the extension direction of the core yarn. An odd number of hollow sections are formed, and the hollow sections are disposed at equal angles with the solid-core section as a center.
Inventors:
CHIBA SHINICHIRO (JP)
TANIGUCHI RYO (JP)
OKADA TAKUTO (JP)
TANIGUCHI RYO (JP)
OKADA TAKUTO (JP)
Application Number:
PCT/JP2016/081212
Publication Date:
May 18, 2017
Filing Date:
October 21, 2016
Export Citation:
Assignee:
YONEX CO LTD (JP)
International Classes:
A63B51/02; A63B102/02; A63B102/04; A63B102/06
Foreign References:
| JPS4028253Y1 | 1965-10-07 | |||
| JPS3822740Y1 | ||||
| JP2000024141A | 2000-01-25 | |||
| JP2001000588A | 2001-01-09 | |||
| US20070028584A1 | 2007-02-08 | |||
| US6327841B1 | 2001-12-11 | |||
| JPS59183272U | 1984-12-06 |
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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