EP 4028137 A4 20231018 - GOLF CLUB HEAD WITH FLEX STRUCTURE
Title (en)
GOLF CLUB HEAD WITH FLEX STRUCTURE
Title (de)
GOLFSCHLÄGERKOPF MIT BIEGSAMER STRUKTUR
Title (fr)
TÊTE DE CLUB DE GOLF À STRUCTURE FLEXIBLE
Publication
Application
Priority
- US 201962900318 P 20190913
- US 2020050769 W 20200914
Abstract (en)
[origin: WO2021051102A1] Embodiments of a wood-type club head having a flex structure to control the characteristic time (CT) are described herein. The club head comprises a flex structure integrally formed with the club face and the sole. The flex structure comprises a curved shape including a nadir and an apex. The flex structure allows the club face to bend rearward, relieve stress within the club face, and reduce the CT variability within a localized club face region.
IPC 8 full level
A63B 53/00 (2015.01); A63B 53/04 (2015.01); A63B 53/06 (2015.01); A63B 53/08 (2015.01); A63B 60/42 (2015.01)
CPC (source: EP GB KR)
A63B 53/0437 (2020.08 - EP GB KR); A63B 53/045 (2020.08 - EP GB KR); A63B 53/0462 (2020.08 - GB KR); A63B 53/0466 (2013.01 - EP GB KR); A63B 60/42 (2015.10 - EP KR); A63B 53/0462 (2020.08 - EP); A63B 2209/02 (2013.01 - EP GB KR)
Citation (search report)
- [XAY] US 2007021234 A1 20070125 - TSURUMAKI MASAEI [JP], et al
- [XAYI] US 2005197207 A1 20050908 - CHEN ARCHER C [TW]
- [XA] US 2003190975 A1 20031009 - FAGOT JACQUES [FR]
- [XA] JP 2019084325 A 20190606 - TOMIZAWA TADASHI
- [XA] US 2007275792 A1 20071129 - HORACEK ROBERT J [US], et al
- [XA] US 4511145 A 19850416 - SCHMIDT GLENN H [US]
- [A] US 2009088270 A1 20090402 - BREKKE DUSTIN J [US], et al
- See also references of WO 2021051102A1
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
DOCDB simple family (publication)
WO 2021051102 A1 20210318; EP 4028137 A1 20220720; EP 4028137 A4 20231018; GB 202205331 D0 20220525; GB 202312919 D0 20231011; GB 202319025 D0 20240124; GB 2603698 A 20220810; GB 2603698 B 20231004; GB 2620032 A 20231227; GB 2620032 B 20240703; GB 2624315 A 20240515; JP 2022547613 A 20221114; KR 20220061154 A 20220512
DOCDB simple family (application)
US 2020050769 W 20200914; EP 20864005 A 20200914; GB 202205331 A 20200914; GB 202312919 A 20200914; GB 202319025 A 20200914; JP 2022516392 A 20200914; KR 20227010955 A 20200914