摘要:
This system (S) for tensioning a racket string (C) includes a traction module (1) suitable for exerting a traction force (T) on a string (C) of a racket, including a grip (3) including two opposite jaws (32) suitable for gripping the string (C) between them when it is tensioned, and a traction head (5) on which the grip (3) is mounted, the jaws (32) being translatable simultaneously relative to the traction head (5) and arranged such that the translation of the jaws (32) causes them to tighten around the string (C), a rail (7) on which the traction head (5) of the traction module (1) is mounted translatably, and a traction motor able to translate the traction head (5) of the traction module (1) on the rail (7), via a driving system (13). The system includes element (15) for transmitting movement between the driving system (13) of the traction head (5) and the jaws (32), this transmission element being able to initiate the translation of the jaws (32) relative to the traction head (5) in the direction gripping the string (C).
摘要:
This method for calculating a repeatability index of gestures and shots of a player striking a tennis ball with a racket, includes: a preliminary step a) in which behavioural data of the racket are generated during tests, the behavioural data indicating first playing data, related to gestures and shots as a function of parameters including at least several types of hits, a playing step b) in which second playing data are measured; an analysis step c) in which: the second playing data are compared with the behavioural data, the type of hit is deduced for each shot made in the playing step b), and for each type of hit, the value of the repeatability index of the player's gestures and shots is determined by comparing the second playing data with each other.
摘要:
This sport shoe includes an outer sole suitable for ground contact, an inner sole situated under a foot of an athlete, and an intermediate sole between the outer and inner soles. The outer sole is divided, along a longitudinal axis of the shoe, into at least three transverse zones including a front zone located at least partially below the toes of the foot, a median transverse zone provided to be at least partially located below a region of the foot extending between the base of the toes and a front end of the arch of the foot, and a rear zone provided to be located at least partially below a region of the foot extending backward from the front end of the arch of the foot. The three transverse zones are separated by transverse flexion lines whose flexibility is greater than the flexibility of the three transverse zones.
摘要:
This system (1) for blocking one or more strings (C) of a racket on the stringing machine comprises a guide support on which two clip holders (3) each provided with a clip (37) for gripping a string (C) are mounted. Each of the clip holders (3) is movable relative to the support along a trajectory forming a closed contour around a central axis (X5) of the support.
摘要:
The badminton racket (1) includes a frame (2), a handle (4) and a shaft (6) connecting the frame to the handle. It defines a first direction (D1) parallel to a longitudinal axis (X1) of the shaft, a second direction (D2) perpendicular to the first direction and parallel to a plane (P8) in which strings (8) extend mounted in the frame (2), and a third direction (D3) perpendicular to the first and second directions (D1, D2) and the plane (P8) of the strings. The bending rigidity of the shaft (6) in the third direction (D3) is greater than its bending rigidity in the second direction (D2).
摘要:
This sport bag comprises a flexible enclosure (2) delimiting an equipment storage space, as well as a rigid armature (4), attached to the enclosure, arranged outside the enclosure and provided to rest on a support surface (S) in two different positions, namely a first position, in which the armature (4) rests on the support surface (S) by at least three first bearing points, and a second position, in which the armature (4) rests on the bearing surface by at least three second bearing points. The three second bearing points are not all the same as the three first bearing points.
摘要:
This system (1) for blocking one or more strings (C) of a racket on the stringing machine comprises a guide support on which two clip holders (3) each provided with a clip (37) for gripping a string (C) are mounted. Each of the clip holders (3) is movable relative to the support along a trajectory forming a closed contour around a central axis (X5) of the support.
摘要:
This system (S) for tensioning a racket string (C) comprises a traction module (1) suitable for exerting a traction force (T) on a string (C) of a racket, including a grip (3) comprising two opposite jaws (32) suitable for gripping the string (C) between them when it is tensioned, and a traction head (5) on which the grip (3) is mounted, the jaws (32) being translatable simultaneously relative to the traction head (5) and arranged such that the translation of the jaws (32) causes them to tighten around the string (C), a rail (7) on which the traction head (5) of the traction module (1) is mounted translatably, and a traction motor able to translate the traction head (5) of the traction module (1) on the rail (7), via a driving system (13). The system comprises means (15) for transmitting movement between the driving system (13) of the traction head (5) and the jaws (32), this transmission means being able to initiate the translation of the jaws (32) relative to the traction head (5) in the direction gripping the string (C).
摘要:
The badminton racket (1) includes a frame (2), a handle (4) and a shaft (6) connecting the frame to the handle. It defines a first direction (D1) parallel to a longitudinal axis (X1) of the shaft, a second direction (D2) perpendicular to the first direction and parallel to a plane (P8) in which strings (8) extend mounted in the frame (2), and a third direction (D3) perpendicular to the first and second directions (D1, D2) and the plane (P8) of the strings. The bending rigidity of the shaft (6) in the third direction (D3) is greater than its bending rigidity in the second direction (D2).
摘要:
Disclosed is a tennis racket including: an oval frame adapted to support a latticework, and through-bands for the strands of latticework cord, each band being received in an outer housing in the frame and including through-tubes for the strands, the tubes being inserted in the direction of the interior of the frame in through-holes provided in the frame. Each band is arranged flush with the outer edge of the cross-section of the frame, and an outer shell of the cross-section of the frame is essentially diamond shaped.