Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
  • A63B49/022—String guides on frames, e.g. grommets
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
  • A63B49/035—Frames with easily dismountable parts, e.g. heads, shafts or grips
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
  • A63B49/14—Protection devices on the frame
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/006—Surfaces specially adapted for reducing air resistance
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
  • A63B2225/01—Special aerodynamic features, e.g. airfoil shapes, wings or air passages

Definitions

• the present invention relates to a sports racket, as well as to a set for practicing a racket sport comprising such a racket.
• a sports racket comprises a frame, a handle and a string formed by a string stretched between the frame when stringing the sports racket.
• openings and a groove are provided in the frame so that the string can pass through the frame and be housed in the groove.
• the presence of the openings and the groove form irregularities in the outer wall of the frame. These irregularities promote the formation of turbulence in the airflow around the racket as it moves. This turbulence can contribute to slowing the racket as it moves.
• He is also known to JP2569328A and of FR2599634A to completely cover the outer surface of a racket frame with a surround.
• This surround allows in particular to modify the weight of the racket in FR2599634A
• This surround completely covers the outer surface of the frame and does not fit into the outer envelope of the frame.
• this surround creates an extra thickness to the frame, which increases the bulk and therefore the drag of the frame when it is moved in space.
• the aim of the invention is then to propose a finishing rod making it possible to improve the aerodynamics of the sports racket, without increasing the size of the racket, and making it possible to easily adjust the stringing, while avoiding having multiple types of finishing parts.
• the invention also relates to a set for practicing a racket sport comprising a sports racket as defined above in which the finishing stick is selected from several finishing sticks with different properties, which also belong to the set for practicing a racket sport.
• a set 1 for practicing a racket sport shown on the figures 1 to 6 , comprises a sports racket 2 according to a first embodiment of the invention.
• the sports racket 2 comprises at least one finishing rod 4.
• the assembly 1 comprises several finishing rods 4, 4', 4", which are three in number in the example of the figures, from which is chosen the finishing rod 4 which belongs to the sports racket 2.
• the set 1 comprises, in addition to the sports racket 2, the finishing rods 4' and 4".
• the number of finishing strips in set 1 is other than three, for example equal to 1, 2, 4 or more.
• the sports racket 2 comprises a handle 3 and a racket element 5 delimited by an outer wall 6.
• the racket element 5 is symmetrical with respect to a main plane P parallel to the plane of the figure 1
• the racket element 5 comprises a frame 7 and at least two sets of guide eyelets 9.
• the handle 3 is connected to the frame 7 by means of two branches 11 which form a bridge, sometimes called a “yoke”.
• X a longitudinal axis of the racket 2 along which the handle 3 extends and which connects a first end 13 of the frame 7, opposite the handle 3, and a second end 15 of this frame, located on the side of the handle 3 and the bridge formed by the branches 11.
• Y a transverse axis of the racket 2 which is perpendicular to the X axis and contained in the main plane P of the frame 7, as is the longitudinal axis X.
• Z as a thickness axis of the racket 2 which is perpendicular to the X and Y axes and to the main plane P.
• the X, Y and Z axes define an orthogonal reference frame.
• the sports racket 2 is symmetrical about a plane of symmetry comprising the longitudinal axis X and the thickness axis Z.
• the parts of the frame 7 can be identified in the manner of a time dial, considering that the first end 13 corresponds to 12 o'clock, while the second end 15, located near the bridge or yoke, corresponds to 6 o'clock.
• the 6 o'clock-12 o'clock axis of the dial is the same as the X axis.
• the 3 o'clock-9 o'clock axis is the same as the Y axis.
• the frame 7 comprises an inner wall 17 and an outer wall 19 defining, between them, an internal volume 20 of the frame 7.
• the external surface of the inner wall 17 and the outer wall 19 are denoted S17 and S19 respectively, these external surfaces being opposite the internal volume 20.
• the frame 7 defines a radial direction R directed from the inner wall 17 towards the outer wall 19 at any point of the frame 7.
• the inner wall 17 is concave and the outer wall 19 is convex relative to the radial direction R.
• a groove 23 is provided in the outer wall 19 of the frame 7.
• Each cross-section of the frame 7 defines an external envelope E7.
• the external envelope E7 is merged with the external surfaces S17 and S19 of the inner wall 17 and the outer wall 19. At the junction between the external surface S19 and the groove 23, the envelope extends towards the main plane P along the tangent of the external surface S19 at the junction point between the external surface S19 and the groove 23.
• the external envelope E7 is defined by the external surface S17, the external surface S19 and two segments, symmetrical with respect to the main plane P and connecting, on the one hand, the point of intersection of the tangents of the external surface S19 and, on the other hand, the junction with the groove 23 and the junction between the external surface S19 and the groove 23.
• the external envelope E7 is represented by a thick mixed line at the figures 4 And 5 .
• the frame 7 has holes 21.
• the holes 21 pass through the frame 7 and connect the inner wall 17 and the outer wall 19 to each other.
• the outer wall 19 of the frame 7 forms the outer wall 6 of the racket element 5.
• the two sets of eyelets 9 are arranged on lateral portions 25 and 27 of the frame 7, which correspond approximately to areas between 2 and 5 o'clock and between 7 and 10 o'clock of the dial formed by the frame.
• Each set of eyelets 9 comprises a sole 29 intended to bear against the groove 23 of the frame 7 and several eyelets 31 intended to pass through the frame 7 via the holes 21, opening out towards the volume surrounded by the inner wall 17.
• each sole 29 extends, along the thickness axis Z, diverging from the main plane P.
• each set of eyelets 9 is an independent part of the frame 7, attached to the groove 23 of the frame 7.
• the sports racket 2 comprises, in a manner known per se, one or more longitudinal strings 43 arranged parallel to the axis X and one or more other transverse strings 43 arranged parallel to the axis Y.
• the different strings 43 of the racket 2 together form the head, not shown, of the sports racket 2 which extends in the main plane P.
• the eyelet sets 9 and the transverse cords 43 are not shown in the figure 1 .
• Each rope 43 passes through the frame 7 between the inner wall 17 and the outer wall 19 by passing through the holes 21.
• Each rope 43 is guided through the holes 21 by an eyelet 31 of a set of eyelets 9.
• the finishing rod 4 is configured to be mounted, opposite one of the sets of eyelets 9, on the racket element 3, in particular on the portion 25 of the frame 7.
• the sports racket 2 comprises a second finishing rod 46 mounted on the portion 27.
• the second finishing rod 46 is identical to the finishing rod 4.
• the finishing strip 4 has a convex outer wall 47 and, advantageously, two tabs 49 which extend, when the finishing strip 4 is mounted on the frame 7, in a direction opposite to the radial direction R.
• the two tabs 49 extend over an entire length of the finishing strip 4.
• S47 the external surface of the outer wall 47, which is oriented in the direction of the radial direction R.
• the legs 49 delimit between them a volume 51.
• External surfaces 55 of the legs 49 match the shape of the groove 23 of the frame 7, so that the finishing strip 4 can slide in the frame 7 by complementarity of shapes, in the longitudinal direction of the portion 25 of the frame 7.
• the finishing rod 4 is slidably mounted on the portion 25 of the frame 7 once the racket is strung, in particular once the eyelet assembly is already in place in the groove 23. In other words, the finishing rod 4 is not crossed by the strings 43.
• the groove 23 of the frame 7 and the sole 29 of the set of eyelets 9 associated with the portion 25 form two rails 57 in which the legs 49 of the finishing rod 4 are inserted.
• the surface contacts between the rails 57 and the legs 49 form a sliding connection between the finishing rod 4 and the racket element 3 and ensure the mounting of the finishing rod 4 on the sports racket 2.
• the sole 29 forms a stop to the movement of the finishing rod 4 in the radial direction R.
• the finishing rod 4 When the finishing rod 4 is mounted on the sports racket 2, the finishing rod 4 completely covers the set of eyelets 9 and encloses the set of eyelets 9 in the volume 51.
• the finishing rod 4 protects the set of eyelets 9 and the stringing of the sports racket 2 from external dust and ensures a better life for the stringing.
• the finishing strip 4 covers several successive eyelets 31 of the set of eyelets.
• the finishing strip 4 covers at least six eyelets 31.
• the length of the finishing strip 4 depends on the number of eyelets 31 to be covered. Its other dimensions, in particular its width, its thickness and its camber, do not depend on the geometry of the set of eyelets 9.
• the external surface S47 of the outer wall 47 is flush with the external surface S19 of the outer wall 19 of the frame 7.
• the outer walls 19 and 47 together form an external wall 61 of the sports racket 2 whose external surface S61 is continuous, without break.
• the external surface S61 is continuously derivable, that is to say that the ends of the external surfaces S19 and S47 have a common tangent.
• the design and assembly of the finishing strip 4 ensure that a convex and continuous external surface S61 is obtained, without any abrupt external relief.
• the external surface S61 is inscribed in the external envelope E7 of the frame.
• inscribed in the external envelope E7 it is meant that the external surface S61 is merged with the external envelope E7 or is contained within the perimeter delimited by the external envelope E7. In doing so, the external surface S61 does not pass through or protrude beyond the external envelope E7.
• the finishing strip 4 does not cover the external surface S19.
• the geometry of the outer surface S61 improves the aerodynamics of the sports racket 2, ensuring better penetration and better movement in the air of the sports racket 2.
• the improvement of the aerodynamics of the sports racket 2 makes it possible to promote the speed of movement of the head of the sports racket 2, which thus makes it possible to impart more rotation and/or speed to a ball, not shown, when the ball is struck by the sports racket 2.
• the finishing stick can be mounted and removed from the sports racket 2 at the discretion of the user of the sports racket 2.
• the user of the sports racket 2 can, for example, play without a finishing stick 4 mounted on the sports racket 2.
• the finishing stick 4 is easily removed from the sports racket 2 by simply sliding the finishing stick 4 into the groove 23 until the finishing stick 4 is removed from the groove 23.
• the removal of the finishing stick 4 allows, for example, the stringing to be readjusted.
• the finishing stick can be placed on the frame 7 by sliding it into the groove 23.
• the racket comprises a reinforced set of eyelets 63.
• the reinforced set of eyelets 63 is another set of eyelets, different from the sets of eyelets 9.
• the reinforced set of eyelets 63 is arranged on a portion 33 of the frame 7 corresponding to an area between 10 a.m. and 2 p.m.
• the reinforced set of eyelets 63 comprises a sole, not shown, intended to come into contact with the groove 23 of the frame 7 and eyelets 37 intended to guide the ropes 43 through the frame 7 via the holes 21.
• FIG. figure 1 For simplicity of drawing, only a portion of the eyelets 37 of the reinforced eyelet assembly 63 is shown in FIG. figure 1 .
• the reinforced set of eyelets 63 also comprises an outer wall 65 which extends on each side of the reinforced set of eyelets 63 along the thickness axis Z.
• the outer wall 65 forms a reinforcement of the frame 7 and protects the frame 7 from impacts.
• the outer wall 65 covers the outer wall 19 of the frame 7.
• the outer wall 65 comprises two strips 65A and 65B, which delimit between them a groove 67.
• a width of the groove 23 of the frame 7 is greater than a width of the groove 67 of the reinforced assembly of eyelets 63.
• the finishing strip 4 comprises an end 69 configured to slide in the groove 67 of the reinforced assembly of eyelets 10. More precisely, the finishing strip has a narrowed width at the end 69. In the example, as visible in the figure 7 , the width of the finishing strip 4 is discontinuous due to the straight narrowing of the end 69.
• the assembly 1 for practicing racket sports comprises another finishing rod 70 which is flush with the outer wall 65 of the reinforced assembly of eyelets 63 and which is mounted by sliding in the groove 67 of the reinforced assembly of eyelets 63.
• an external surface S70 of the finishing rod 70 is flush with the external surfaces S65A and S65B of the bands 65A and 65B.
• the finishing sticks 4, 4' and 4" have different properties.
• the finishing sticks 4, 4' and 4" have different surface conditions, colors, hardnesses and/or masses.
• the set 1 for practicing racket sports comprises several finishing sticks of the type of stick 46 and/or of the type of stick 70 with different properties, these properties being the same as those mentioned for the sticks 4, 4' and 4".
• the finishing sticks 4, 46 and 70 are selected from the finishing sticks of the set 1 so as to modify the properties of the sports racket 2.
• the frame 7 and the sets of eyelets 9 are monobloc, that is to say formed from a single piece.
• the width of the finishing strip 4 has a bevel at the end 69 and therefore a continuous narrowing of the width of the finishing strip 4 at the end 69.
• the finishing rod 4 has a concave outer wall 47, with an external surface S61 inscribed in the external envelope E7 and improving the aerodynamics of the sports racket 2.
• the fixing of the finishing strip 4 on the frame 7 can be carried out by a system of clipping the finishing strip 4 on the frame 7 or by any other fixing method allowing the mounting and dismounting of the finishing strip 4 on the frame 7.
• THE figures 8 to 11 illustrate a sports racket 102 according to a second embodiment of the invention, the sports racket 102 being identical to the sports racket 2 of the first embodiment except for the characteristics described below.
• the reference signs for the device of the sports racket 102 correspond to those of the sports racket 2 when the referenced element is unchanged.
• the reference signs are increased by 100 when they designate similar but modified elements in the sports racket 2. If a reference is mentioned in the remainder of the description without being carried on one of the figures 8 to 11 , or shown in one of these figures without being mentioned in the description, it relates to the same element as that bearing the same reference in the first embodiment.
• the sole 129 of the eyelet assembly 109 matches the shape of the groove 23 of the frame 7 and extends over an entire height of the groove 23 of the frame 7 up to an outer wall 173.
• the outer wall 173 of the eyelet assembly 109 forms, with the outer wall 19 of the frame 7, the outer wall 106 of the racket element 105.
• S106 the external surface of the outer wall 106.
• S173 the external surface of the outer wall 173.
• the external walls are oriented in the radial direction of the frame 107, defined as in the first embodiment.
• the external surface S173 is flush with the external surface S19 of the outer wall 19 of the frame 7, so that the external surface S106 is continuous, without abrupt relief.
• the eyelet assembly 109 also has a groove 171, delimited by an internal surface 172. Two grooves 175 are provided, symmetrically with respect to the main plane P, in the groove 171 of the eyelet assembly 109.
• the finishing rod 4 has legs 149 which extend, symmetrically with respect to the main plane P, along the thickness axis Z.
• the two legs 149 are configured to fit into the grooves 175.
• the contacts between the grooves 175 and the legs 149 form a sliding connection between the finishing rod 4 and the racket element 105, in particular the eyelet assembly 109, and ensure the mounting of the finishing rod 4 on the sports racket 102.
• the grooves 175 form a radial stop preventing movement in the radial direction R of the finishing rod 4 and ensuring that the finishing rod 4 is held in the radial position.
• the outer surface S47 of its outer wall 47 is flush with the outer surface S173 of the outer wall 173 of the set of eyelets 109 and forms, with the outer surface S19 of the outer wall 19 of the frame 7 and the outer surface S173 of the outer wall 173 of the set of eyelets 109, an outer surface S161 of the sports racket 102.
• the aerodynamics of the sports racket 102 is improved, like that of the sports racket 2. Its penetration in the air is also improved.
• THE figures 12 to 15 illustrate a sports racket 202 according to a third embodiment of the invention, the sports racket 202 being identical to the sports racket 2 of the first embodiment except for the characteristics described below.
• the reference signs for the device of the sports racket 202 correspond to those of the sports racket 2 when the referenced element is unchanged.
• the reference signs are increased by 200 when they designate similar but modified elements in the sports racket 2. If a reference is mentioned in the remainder of the description without being carried on one of the figures 12 to 15 , or shown in one of these figures without being mentioned in the description, it relates to the same element as that bearing the same reference in the first embodiment.
• the finishing strip 204 comprises protrusions 280 distributed along the finishing strip 204.
• the protrusions 280 extend into the volume 51, between the tabs 49, perpendicular to the outer wall 47 in a direction opposite to the outer surface S247.
• the protrusions extend, when the finishing strip 204 is mounted on the frame 7, in a direction opposite to the radial direction R.
• the set of eyelets 209 has housings 282 passing through the sole 29 parallel to the eyelets 31.
• the housings 282 are configured to respectively receive a protuberance 280 of the finishing strip 204.
• finishing strip 204 is mounted on the eyelet assembly 209 by clipping the protrusions 280 into the housings 282.
• the finishing strip 204 may have, on the external surface S247, a receiving notch configured to receive a tip of a tool allowing the finishing strip 204 to be disassembled.
• the external surface S247 is continuous except at a point located along the total length of the finishing strip 204, in in which the receiving notch is provided, a dimension of the receiving notch being less than a diameter of a rope.
• THE figures 16 to 19 illustrate a sports racket 302 according to a fourth embodiment of the invention, the sports racket 302 being identical to the sports racket 2 of the first embodiment except for the characteristics described below.
• the reference signs for the device of the sports racket 302 correspond to those of the sports racket 2 when the referenced element is unchanged.
• the reference signs are increased by 300 when they designate similar but modified elements in the sports racket 2. If a reference is mentioned in the remainder of the description without being carried on one of the figures 16 to 19 , or shown in one of these figures without being mentioned in the description, it relates to the same element as that bearing the same reference in the first embodiment.
• the two legs 49 of the sports racket 2 of the first embodiment are replaced by several legs 349 forming two rows along the length of the finishing rod 304.
• Each of the legs 349 of the finishing rod 304 comprises a protuberance 390 which extends into the volume 51 perpendicular to the associated leg 349.
• the set of eyelets 309 has housings 392 which extend projecting from the sole 329 perpendicular to the eyelets 31.
• the housings 392 are configured to respectively receive a protrusion 390 of the finishing strip 304.
• the finishing strip 304 is mounted on the eyelet assembly 309 by clipping the protrusions 390 into the housings 392.
• the legs 349 of the finishing strip 204 are not in contact with the groove 23.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)
• Toys (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=92626474

Family Applications (1)

Country Status (4)

Citations (5)

• 2024
  • 2024-04-16 FR FR2403946A patent/FR3161122A1/fr active Pending
• 2025
  • 2025-04-15 EP EP25170541.4A patent/EP4635583A1/de active Pending
  • 2025-04-15 US US19/179,102 patent/US20250319361A1/en active Pending
  • 2025-04-15 CN CN202510468430.4A patent/CN120827709A/zh active Pending

Patent Citations (6)

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