EP 4371630 A1 20240522 - GOLF SHAFT AND MANUFACTURING METHOD FOR SAME
Title (en)
GOLF SHAFT AND MANUFACTURING METHOD FOR SAME
Title (de)
GOLFSCHLÄGERSCHAFT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
MANCHE DE CLUB DE GOLF ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2021115758 A 20210713
- JP 2022008647 W 20220301
Abstract (en)
Provided is a golf shaft capable of realizing a sufficient low trajectory and low spin. The golf shaft has a rigidity distribution in which rigidity is gradually increased from a tip end section 5 to a butt end section 7, and, in the rigidity distribution, has an intermediate point P at which inclination is changed in an intermediate section 9 between the tip end section 5 and the butt end section 7, a difference in rigidity between the tip end section 5 and the intermediate point P is 3.00 kgf·m<sup>2</sup>-5.00kgf·m<sup>2</sup>, and a difference in rigidity between the intermediate point P and the butt end section 7 is 2.00kgf·m<sup>2</sup> or less.
IPC 8 full level
A63B 53/12 (2015.01); A63B 102/32 (2015.01)
CPC (source: EP KR)
A63B 53/10 (2013.01 - KR); A63B 53/12 (2013.01 - KR); A63B 60/0081 (2020.08 - EP); A63B 60/42 (2015.10 - EP); A63B 53/12 (2013.01 - EP); A63B 2102/32 (2015.10 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4371630 A1 20240522; CN 117440854 A 20240123; JP 2023012237 A 20230125; JP 7142274 B1 20220927; KR 20230162105 A 20231128; TW 202302189 A 20230116; TW I801205 B 20230501; WO 2023286324 A1 20230119
DOCDB simple family (application)
EP 22841674 A 20220301; CN 202280035236 A 20220301; JP 2021115758 A 20210713; JP 2022008647 W 20220301; KR 20237037510 A 20220301; TW 111114217 A 20220414