Title:
GOLF CLUB SHAFT
Document Type and Number:
WIPO Patent Application WO/2016/056624
Kind Code:
A1
Abstract:
Provided is a fiber-reinforced golf club shaft for which cantilever bending displacement is small while the shaft is kept lightweight, and as a result, the golf club shaft has high flight-distance performance and excellent directivity independent of the ability of a golfer. The golf club shaft is formed from a plurality of fiber-reinforced resin layers, which are resin layers containing a fiber material. If the length of the golf club shaft is L (mm), and if the weight is W (g) and the displacement resulting from a cantilever bending test is D (mm) when the length is L, formula (1) is satisfied. (1): 455 ≤ D + 7.5 × W × (168/L) ≤ 515
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Inventors:
KANEKO TAKASHI (JP)
KIKAWA HIROYASU (JP)
SHIMONO SATOSHI (JP)
KIKAWA HIROYASU (JP)
SHIMONO SATOSHI (JP)
Application Number:
PCT/JP2015/078619
Publication Date:
April 14, 2016
Filing Date:
October 08, 2015
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
International Classes:
A63B53/10
Domestic Patent References:
| WO2013180098A1 | 2013-12-05 | |||
| WO2014034803A1 | 2014-03-06 |
Foreign References:
| JP2000037486A | 2000-02-08 | |||
| JP2014027973A | 2014-02-13 | |||
| JP2008005913A | 2008-01-17 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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