EP 4098331 A4 20240221 - BADMINTON RACKET
Title (en)
BADMINTON RACKET
Title (de)
FEDERBALLSCHLÄGER
Title (fr)
RAQUETTE DE BADMINTON
Publication
Application
Priority
- JP 2020025155 A 20200218
- JP 2021001551 W 20210119
Abstract (en)
[origin: EP4098331A1] A badminton racket 2 includes a shaft 4, a frame 6, a grip 8, and a string 10. A flexural rigidity value EI(2) of the shaft 4 at a second measurement point located at a distance of 75 mm from the grip 8 is greater than a flexural rigidity value EI(1) of the shaft 4 at a first measurement point located at a distance of 35 mm from the grip 8 and a flexural rigidity value EI(4) of the shaft 4 at a fourth measurement point located at a distance of 155 mm from the grip 8. A flexural rigidity value EI(3) of the shaft 4 at a third measurement point located at a distance of 115 mm from the grip 8 is greater than the flexural rigidity value EI(1) and the flexural rigidity value EI(4).
IPC 8 full level
A63B 49/00 (2015.01); A63B 60/00 (2015.01); A63B 102/04 (2015.01)
CPC (source: EP)
A63B 49/00 (2013.01); A63B 60/0081 (2020.08); A63B 60/42 (2015.10); A63B 2102/04 (2015.10); A63B 2209/02 (2013.01); A63B 2209/023 (2013.01)
Citation (search report)
- [IDY] CN 107115641 A 20170901 - WU HUILIN
- [I] WO 2019208344 A1 20191031 - YONEX CO LTD [JP]
- [I] CN 204815568 U 20151202 - WU SHUMING
- [Y] JP 2014045947 A 20140317 - GLOBERIDE INC
- [E] WO 2021024617 A1 20210211 - SUMITOMO RUBBER IND [JP]
- See references of WO 2021166518A1
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)
EP 4098331 A1 20221207; EP 4098331 A4 20240221; JP 2021129633 A 20210909; JP 7424095 B2 20240130; WO 2021166518 A1 20210826
DOCDB simple family (application)
EP 21756746 A 20210119; JP 2020025155 A 20200218; JP 2021001551 W 20210119