US20170232308A1 - Tennis racket - Google Patents

Tennis racket Download PDF

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Publication number
US20170232308A1
US20170232308A1 US15/502,393 US201515502393A US2017232308A1 US 20170232308 A1 US20170232308 A1 US 20170232308A1 US 201515502393 A US201515502393 A US 201515502393A US 2017232308 A1 US2017232308 A1 US 2017232308A1
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US
United States
Prior art keywords
sieve
frame
cords
center
mesh
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/502,393
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English (en)
Inventor
Elsa Germain
Emilie Valbousquet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babolat VS SA
Original Assignee
Babolat VS SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babolat VS SA filed Critical Babolat VS SA
Assigned to BABOLAT VS reassignment BABOLAT VS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GERMAIN, Elsa, VALBOUSQUET, Emilie
Publication of US20170232308A1 publication Critical patent/US20170232308A1/en
Abandoned legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/02—Tennis

Definitions

  • the invention relates to a tennis racket.
  • a tennis racket comprises a handle, an oval frame and a Y-portion which connects the handle to the frame.
  • the frame supports a sieve formed by the crossing of longitudinal cords and of transverse cords.
  • the longitudinal cords are called uprights and the transverse cords are called ribs.
  • the frame defines a geometrical center on which is centered the mesh, i.e. the smallest meshes of the sieve are positioned in the central region of the sieve, i.e. all around the geometrical center of the frame.
  • the rules of tennis actually describe that the stringing should be homogeneous as a whole and notably not less dense at the center than at any other point.
  • the invention relates to a tennis racket, comprising an oval frame supporting a sieve.
  • the or all the smallest meshes of the sieve are positioned between the geometrical center and the apex of the frame.
  • the meshes of the sieve are—narrower at the preferential hitting area, as mentioned above, of the tennis players, which provides a better yield of the racket during a blow.
  • This increase in the yield is expressed by an improvement in the control, in the spin and in the power, an effect which is obtained by acting on the spacing of the cords.
  • the tennis racket may include one or several of the following features, taken in any technically acceptable combination:
  • FIG. 1 is a partial and front view of a tennis racket according to the invention.
  • FIG. 1 is illustrated a tennis racket 1 including a handle not shown, a frame 10 and a Y-shaped portion 12 , called a “yoke”, which connects the handle to the frame 10 .
  • the frame 10 is an oval frame, i.e. in an elliptical shape defining a geometrical center C.
  • the center C is positioned at the intersection between a major axis and a minor axis of the frame 10 .
  • the major axis is a segment borne by a longitudinal axis X 1 and the minor axis is a segment borne by a transverse axis X 2 perpendicular to the axis X 1 .
  • the frame 10 includes an apex S, which is positioned on the axis X 1 opposite to the handle relatively to the center C.
  • F refers to an image point of the apex S by central symmetry of center C.
  • the major axis is a segment from the apex S to the point F.
  • the minor axis is a segment perpendicular to the major axis from point A to a point B.
  • the points A, B, S and F are positioned on the outer contour of the frame 10 .
  • the frame 10 supports a sieve 14 formed with a set of longitudinal cords 14 a, called uprights and of transverse cords 14 b, called ribs, which cross each other.
  • the longitudinal cords 14 a extend parallel to the axis X 1 and the transverse cords 14 b extend parallel to the axis X 2 .
  • the sieve 14 is symmetrical relatively to the axis X 1 .
  • the sieve 14 comprises 16 longitudinal cords 14 a and 19 transverse cords 14 b. This is referred to as a stringing plane 16 ⁇ 19.
  • stringing plane 16 ⁇ 19 By making the meshes of a stringing plane 16 ⁇ 19 more narrow, stringing planes 18 ⁇ 20 will be used, known for providing more control, and by spacing apart the meshes of a stringing plane 16 ⁇ 19, stringing planes 14 ⁇ 19 are used, known for the effect which they may give to the ball.
  • the stringing 16 ⁇ 19 therefore benefits from both of these effects, each effect may be enhanced depending on the spacing between the cords 14 a and/or 14 b.
  • a 140 refers to the smallest mesh of the sieve 14 . This mesh 140 has a longitudinal dimension, i.e.
  • the mesh 140 also has a transverse dimension, i.e. measured parallel to the axis X 2 , which is smaller than that of all the other meshes of the sieve 14 .
  • the mesh 140 is a rectangular mesh and is positioned between the geometrical center C and the apex S of the frame 10 .
  • the first and last transverse cords are referred to with t 1 and t 19 .
  • the first transverse cord t 1 is positioned as close as possible to the apex S of the frame 10
  • the last transverse cord t 19 is positioned as close as possible to the point F.
  • the mesh 140 is defined between a seventh transverse cord t 7 and an eighth transverse cord t 8 of the sieve 14 from the cord t 1 to the cord t 19 .
  • the mesh 140 of the sieve 14 is also defined between the eighth and ninth longitudinal cords 18 and 19 of the sieve 14 .
  • the longitudinal dimension of the mesh 140 is comprised between 8 mm and 14 mm, while the transverse dimension of the mesh 140 is comprised between 8 mm and 14 mm.
  • the smallest mesh 140 of the sieve 14 defines a center C′, which is positioned on the axis of symmetry X 1 of the sieve 14 , between the geometrical center C and the apex S of the oval frame 10 .
  • the center C′ is positioned at the center of the mesh 140 , i.e. at the intersection point of both diagonals of the rectangle forming the mesh 140 .
  • the center C′ is the center of the sieve 14 .
  • d 1 refers to the distance, measured parallel to the axis X 1 , between the center of the sieve C′ and the geometrical center C of the frame 10 .
  • d 2 refers to the distance between the geometrical center C and the apex S of the frame 10 .
  • the distance d 1 is comprised between 5.5% and 53%, preferably between 25% and 28% of the distance d 2 .
  • the meshes, other than the mesh 140 , of the sieve 14 are all the smaller when they are close to the mesh 140 . These other meshes of the sieve 14 are therefore narrower on an area positioned around the mesh 140 .
  • This area in practice corresponds to the preferential hitting area of the players, notably professionals. It is off-centered relatively to the geometrical center C of the frame 10 , notably positioned between the center C and the apex S of the frame 10 . It encompasses about 90% of the impact points of the ball on the sieve 14 .
  • the hitting area thus comprises the smallest meshes of the sieve 14 .
  • the “core” of the stringing plane of the sieve 14 is therefore located in this hitting area.
  • the fact that the meshing of the sieve is narrower in this heating area allows the players to use its racket in the area providing the best yield.
  • the spacing between the cords 14 a and/or 14 b is more or less significant in this area depending on the desired effect for the racket. For example, narrower cords provide more control, while less narrower cords provide more “spin”, i.e. more effect imparted to the ball.
  • the sieve includes several meshes of identical dimensions and smaller than those of all the other meshes of the sieve.
  • the smallest meshes of the sieve may be 2, 3, 4, 5, 6 or more in number. These meshes are centered on a point approximately positioned or specifically at the same location as the point C′. In this case, the center defined by these meshes of minimum size may be at the center of a mesh but also at a crossing point between two cords.
  • all the smallest meshes of the sieve are positioned between the geometrical center C and the apex S of the frame 10 .
  • the sieve 14 may comprise a number of longitudinal cords 14 a different from 16, for example equal to 18 or 14, and a number of transverse cords 14 b different from 19, for example equal to 20 or 18.
  • the or the smallest meshes of the sieve 14 are square-shaped.
  • the longitudinal cords 14 a are not strictly parallel to the axis X 1 .
  • the transverse cords 14 b are not strictly parallel to the axis X 2 .
  • the racket 1 is a racket with a size adapted for children.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Prostheses (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Woven Fabrics (AREA)
US15/502,393 2014-08-12 2015-08-11 Tennis racket Abandoned US20170232308A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1457772 2014-08-12
FR1457772A FR3024839B1 (fr) 2014-08-12 2014-08-12 Raquette de tennis
PCT/EP2015/068411 WO2016023881A1 (fr) 2014-08-12 2015-08-11 Raquette de tennis

Publications (1)

Publication Number Publication Date
US20170232308A1 true US20170232308A1 (en) 2017-08-17

Family

ID=52003967

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/502,393 Abandoned US20170232308A1 (en) 2014-08-12 2015-08-11 Tennis racket

Country Status (6)

Country Link
US (1) US20170232308A1 (fr)
JP (1) JP2017523855A (fr)
CN (1) CN106573166A (fr)
DE (1) DE112015003706T5 (fr)
FR (1) FR3024839B1 (fr)
WO (1) WO2016023881A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3560559A1 (fr) * 2018-04-25 2019-10-30 Sumitomo Rubber Industries Limited Raquette de tennis avec différentes tailles de mailles
US11521367B2 (en) 2020-07-17 2022-12-06 Head Technology Gmbh Characterization of a ball game racket string pattern

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172596A (en) * 1974-02-28 1979-10-30 Linden Gaylord C Racquet means and method of stringing same
US4231575A (en) * 1977-12-23 1980-11-04 Mers Kutt Racket stringing
US4330132A (en) * 1978-09-05 1982-05-18 Harry Ferrari Racquets
US4366959A (en) * 1977-03-08 1983-01-04 Patentex (Societe Anonyme) Racket for tennis and similar games
US4566695A (en) * 1983-03-17 1986-01-28 Melby Phillip J Game racket having adjustable string mounts
US5277422A (en) * 1991-09-27 1994-01-11 Dunlop Limited Games racket frame
US5342045A (en) * 1993-12-20 1994-08-30 Lisco, Inc. Reverse sunburst string pattern for racquetball rackets
US6344006B1 (en) * 2000-11-17 2002-02-05 Richard A. Brandt Sports racket having a uniform string structure
US6796916B1 (en) * 2002-05-23 2004-09-28 Ef Composite Technologies, L.P. Sports racquet with deflection enhancing string bed
US20050266940A1 (en) * 2004-05-27 2005-12-01 Ef Composite Technologies, L.P. Composite racquet with double tube head frame
US20060029312A1 (en) * 2004-08-06 2006-02-09 Hiroyuki Kiriyama Hydrodynamic bearing device, motor and disc driving apparatus
US20060293127A1 (en) * 2005-06-22 2006-12-28 William Riesser Racket and method of stringing the racket
US20080010299A1 (en) * 2005-03-18 2008-01-10 Fujitsu Limited File management system
US20080102995A1 (en) * 2006-10-25 2008-05-01 Chia-Yuan Chang Racket
US20130023363A1 (en) * 2011-07-20 2013-01-24 Ef Composite Technologies, L.P. Racquet with elongated grommet barrels
US20130231204A1 (en) * 2011-08-24 2013-09-05 Marisa Hodges Tennis racket having an optimized striking area and a ball collection portion

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757971A1 (de) * 1977-12-24 1979-06-28 Kuebler & Co Tennisschlaeger
JPS5545396U (fr) * 1978-09-20 1980-03-25
JPS57100952U (fr) * 1980-12-09 1982-06-21
US4988101A (en) * 1989-09-05 1991-01-29 Soong Tsai C Shock absorbing string post for sports rackets
CN2114479U (zh) * 1991-10-31 1992-09-02 冯普军 羽毛球拍
CN2158287Y (zh) * 1993-06-15 1994-03-09 党裕福 羽球拍
JP2726229B2 (ja) * 1993-12-06 1998-03-11 住友ゴム工業株式会社 ラケット
JP3446166B2 (ja) * 1993-12-06 2003-09-16 住友ゴム工業株式会社 ラケット
US6062994A (en) * 1998-04-10 2000-05-16 Ef Composite Technologies, L.P. Reinforced racquet with flat string bed
CN2395754Y (zh) * 1999-10-10 2000-09-13 万象复合材料工业股份有限公司 球拍穿线结构
JP2002306639A (ja) * 2001-04-18 2002-10-22 Sumitomo Rubber Ind Ltd ラケット
CN2925545Y (zh) * 2006-04-14 2007-07-25 林省吾 球拍穿线结构

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172596A (en) * 1974-02-28 1979-10-30 Linden Gaylord C Racquet means and method of stringing same
US4366959A (en) * 1977-03-08 1983-01-04 Patentex (Societe Anonyme) Racket for tennis and similar games
US4231575A (en) * 1977-12-23 1980-11-04 Mers Kutt Racket stringing
US4330132A (en) * 1978-09-05 1982-05-18 Harry Ferrari Racquets
US4566695A (en) * 1983-03-17 1986-01-28 Melby Phillip J Game racket having adjustable string mounts
US5277422A (en) * 1991-09-27 1994-01-11 Dunlop Limited Games racket frame
US5342045A (en) * 1993-12-20 1994-08-30 Lisco, Inc. Reverse sunburst string pattern for racquetball rackets
US6344006B1 (en) * 2000-11-17 2002-02-05 Richard A. Brandt Sports racket having a uniform string structure
US6796916B1 (en) * 2002-05-23 2004-09-28 Ef Composite Technologies, L.P. Sports racquet with deflection enhancing string bed
US20050266940A1 (en) * 2004-05-27 2005-12-01 Ef Composite Technologies, L.P. Composite racquet with double tube head frame
US20060029312A1 (en) * 2004-08-06 2006-02-09 Hiroyuki Kiriyama Hydrodynamic bearing device, motor and disc driving apparatus
US20080010299A1 (en) * 2005-03-18 2008-01-10 Fujitsu Limited File management system
US20060293127A1 (en) * 2005-06-22 2006-12-28 William Riesser Racket and method of stringing the racket
US20080102995A1 (en) * 2006-10-25 2008-05-01 Chia-Yuan Chang Racket
US20130023363A1 (en) * 2011-07-20 2013-01-24 Ef Composite Technologies, L.P. Racquet with elongated grommet barrels
US20130231204A1 (en) * 2011-08-24 2013-09-05 Marisa Hodges Tennis racket having an optimized striking area and a ball collection portion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3560559A1 (fr) * 2018-04-25 2019-10-30 Sumitomo Rubber Industries Limited Raquette de tennis avec différentes tailles de mailles
US20190329102A1 (en) * 2018-04-25 2019-10-31 Sumitomo Rubber Industries, Ltd. Tennis racket
US10814188B2 (en) * 2018-04-25 2020-10-27 Sumitomo Rubber Industries, Ltd. Tennis racket
US11521367B2 (en) 2020-07-17 2022-12-06 Head Technology Gmbh Characterization of a ball game racket string pattern

Also Published As

Publication number Publication date
JP2017523855A (ja) 2017-08-24
WO2016023881A1 (fr) 2016-02-18
FR3024839A1 (fr) 2016-02-19
FR3024839B1 (fr) 2016-09-09
CN106573166A (zh) 2017-04-19
DE112015003706T5 (de) 2017-05-11

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AS Assignment

Owner name: BABOLAT VS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GERMAIN, ELSA;VALBOUSQUET, EMILIE;REEL/FRAME:041195/0946

Effective date: 20170123

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION