In a racket frame 2, stoppers 28 are each located on a tip side of a narrow diameter portion 26 protruding from a side of an inner circumferential surface 4b of a head 4. A steel sheets 16 is fixed on the side of the inner circumferential surface 4b opposing the stoppers 28 via the narrow diameter portion 26. Weights 14 each include a magnet sheet 32. The narrow diameter portion 26 is inserted through notches 36 and 38 of the weights 14. The steel sheets 16 and the magnet sheet 32 are bound with magnetic force. The notches 36 and 38 of the weights 14 are locked to a string protecting member 12. The stoppers 28 prevent the weights 14 from being detached form the head 4. The weights 14 are detachably mounted on the head 4.

A racket 2 includes a frame 4, a grip 6, a grommet 10, and a string 12. The frame 4 includes a head 14, a first throat 16a, a second throat 16b, and a shaft 18. A maximum value of a thickness of the frame 4 is less than 26.0 mm. The racket 2 has an in-plane stiffness index Gi of greater than or equal to 5000 and less than or equal to 8000. The in-plane stiffness index Gi is a product of a top pressure stiffness value Git (kgf/cm) and a side pressure stiffness value Gis (kgf/cm). The racket 2 has an out-of-plane stiffness index Go of greater than or equal to 45000 and less than or equal to 60000. The out-of-plane stiffness index Go is a product of a throat stiffness value Gos (kgf/cm) and a ball-hitting face stiffness value Goh (kgf/cm).

A racket 2 includes a frame 4, a grip 6, a grommet 10, and a string 12. The frame 4 includes a head 14, a first throat 16a, a second throat 16b, and a shaft 18. A maximum value of a thickness of the frame 4 is less than 26.0 mm. The racket 2 has an in-plane stiffness index Gi of greater than or equal to 5000 and less than or equal to 8000. The in-plane stiffness index Gi is a product of a top pressure stiffness value Git (kgf/cm) and a side pressure stiffness value Gis (kgf/cm). The racket 2 has an out-of-plane stiffness index Go of greater than or equal to 45000 and less than or equal to 60000. The out-of-plane stiffness index Go is a product of a throat stiffness value Gos (kgf/cm) and a ball-hitting face stiffness value Goh (kgf/cm).

A racket frame includes a face portion and a grip portion that are arranged side by side in a first direction. Face portion includes a first part including a first end located on a side opposite to grip portion in first direction and a second part including a second end located on a side of grip portion, second part being disposed apart from first part. A plurality of first through-holes that extend along first direction and are arranged at intervals in a second direction are formed in first part. The plurality of first through-holes include a first hole closest to a center of first part in second direction and a second hole located on an opposite side of the center with respect to first hole. In a third direction intersecting with first direction and second direction, a width of first hole is larger than a width of second hole.

A racket frame includes a face portion and a grip portion that are arranged side by side in a first direction. Face portion includes a first part including a first end located on a side opposite to grip portion in first direction and a second part including a second end located on a side of grip portion, second part being disposed apart from first part. A plurality of first through-holes that extend along first direction and are arranged at intervals in a second direction are formed in first part. The plurality of first through-holes include a first hole closest to a center of first part in second direction and a second hole located on an opposite side of the center with respect to first hole. In a third direction intersecting with first direction and second direction, a width of first hole is larger than a width of second hole.

Sports Racket and Kit for Playing a Sport Comprising Such a Racket A sports racket (2) comprises a handle, a racket element (5), composed of a frame (7) the cross section of which defines an external envelope (E7) and a grommet strip (9) resting against the frame, and a set of strings defining a string bed. The sports racket also comprises a finishing strip (4), mounted on the racket element facing the grommet strip and comprising an external surface (S47) that is flush with an external surface (S19) of an outer wall (6) of the racket element to form an external surface (S61) of the sports racket, continuous and inscribed in the external envelope of the cross section of the frame, at every point along the finishing strip.

Sports Racket and Kit for Playing a Sport Comprising Such a Racket A sports racket (2) comprises a handle, a racket element (5), composed of a frame (7) the cross section of which defines an external envelope (E7) and a grommet strip (9) resting against the frame, and a set of strings defining a string bed. The sports racket also comprises a finishing strip (4), mounted on the racket element facing the grommet strip and comprising an external surface (S47) that is flush with an external surface (S19) of an outer wall (6) of the racket element to form an external surface (S61) of the sports racket, continuous and inscribed in the external envelope of the cross section of the frame, at every point along the finishing strip.

A grommet assembly and a stringing assembly for rackets are disclosed. The stringing assembly includes a plurality of grommets. Each of the plurality of grommets is configured within a corresponding slot from a plurality of slots formed on a peripheral surface of a head of a racket. The plurality of grommets includes a set of grommet pairs. Each of the set of grommet pairs is configured to be oppositely disposed on the peripheral surface horizontally or vertically with reference to the head. The stringing assembly further includes a plurality of strings for stringing the racket. Each of the plurality of strings corresponds to a grommet pair. Each of the plurality of strings includes a body and two ends. The body is configured to pass through the associated grommet pair and be enclosed within the head. The two ends cooperate with the associated grommet pair to create variable tension in body.

A grommet assembly and a stringing assembly for rackets are disclosed. The stringing assembly includes a plurality of grommets. Each of the plurality of grommets is configured within a corresponding slot from a plurality of slots formed on a peripheral surface of a head of a racket. The plurality of grommets includes a set of grommet pairs. Each of the set of grommet pairs is configured to be oppositely disposed on the peripheral surface horizontally or vertically with reference to the head. The stringing assembly further includes a plurality of strings for stringing the racket. Each of the plurality of strings corresponds to a grommet pair. Each of the plurality of strings includes a body and two ends. The body is configured to pass through the associated grommet pair and be enclosed within the head. The two ends cooperate with the associated grommet pair to create variable tension in body.

A face of a tennis racket includes a plain weave structure including a plurality of longitudinal threads, a plurality of high-tension transverse threads 36, and a plurality of low-tension transverse threads 38. The tennis racket includes a spin facilitating zone 46. The spin facilitating zone 46 includes: (1) a first high-tension transverse thread 36; (2) a second high-tension transverse thread 36; and (3) an odd number of low-tension transverse threads 38 positioned between the first high-tension transverse thread 36 and the second high-tension transverse thread 36. The spin facilitating zone includes no other high-tension transverse thread 36 positioned between the first high-tension transverse thread 36 and the second high-tension transverse thread 36.