US 12,226,677 B2
Ball game racket frame and method for manufacturing a ball game racket
Herfried Lammer, St. Veit an der Glan (AT); Ralf Schwenger, Weiler im Allgäu (DE); and Stefan Mohr, Dornbirn (AT)
Assigned to Head Technology GmbH, Kennelbach (AT)
Filed by Head Technology GmbH, Kennelbach (AT)
Filed on Aug. 5, 2021, as Appl. No. 17/444,505.
Prior Publication US 2023/0045155 A1, Feb. 9, 2023
Int. Cl. A63B 49/10 (2015.01); A63B 60/54 (2015.01)
CPC A63B 49/10 (2013.01) [A63B 60/54 (2015.10); A63B 2209/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A ball game racket frame including a head portion, a shaft portion and a grip portion, wherein the ball game racket frame comprises a fiber composite material having fibers embedded in a matrix, wherein at least 5% of the fibers are natural fibers in at least one cross-section of a portion of the ball game racket frame;
wherein a proportion of natural fibers in at least one cross-section of the shaft portion and/or of the grip portion, respectively, is greater than a proportion of natural fibers in at least one cross-section of the head portion;
wherein the proportion of natural fibers in the at least one cross-section of the shaft portion and/or of the grip portion and the proportion of natural fibers in the at least one cross-section of the head portion are both greater than zero.