US20060135295A1 - Racket shaft and racket equipped with such shaft - Google Patents

Racket shaft and racket equipped with such shaft Download PDF

Info

Publication number
US20060135295A1
US20060135295A1 US10/530,688 US53068805A US2006135295A1 US 20060135295 A1 US20060135295 A1 US 20060135295A1 US 53068805 A US53068805 A US 53068805A US 2006135295 A1 US2006135295 A1 US 2006135295A1
Authority
US
United States
Prior art keywords
racket
knob
shaft
core
grip portion
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
US10/530,688
Other languages
English (en)
Inventor
Attila Szelenyi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20060135295A1 publication Critical patent/US20060135295A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • A63B49/08—Frames with special construction of the handle
    • 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
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/02—Ballast means for adjusting the centre of mass
    • 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
    • A63B60/06—Handles
    • A63B60/14—Coverings specially adapted for handles, e.g. sleeves or ribbons
    • 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
    • A63B60/06—Handles
    • A63B60/16—Caps; Ferrules
    • 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
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material
    • 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
    • A63B60/06—Handles
    • A63B60/10—Handles with means for indicating correct holding positions
    • 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
    • A63B60/06—Handles
    • A63B60/12—Handles contoured according to the anatomy of the user's hand

Definitions

  • the present invention relates to a racket shaft that at one end is intended to be connected to a racket head, said racket shaft comprising a grip portion, said racket shaft at its other end having a knob that is detachably mounted on the racket shaft, said knob having an across dimension that is larger than the diameter of the portion of the racket shaft to which the knob is attached.
  • the invention also relates to a racket equipped with a racket shaft according to the present invention.
  • a racket shaft having an exchangeable grip portion that can be mounted on and demounted from a core of the racket shaft.
  • a screw is brought to cooperate with a wedge-shaped nut that is locked axially within the core.
  • a racket shaft is previously known, said racket shaft at its free end having a butt cap that may be pushed on the free end of the racket shaft.
  • the butt cap defines an internal cavity in which a ballast, in the shape of metal shot or metal discs, may be provided.
  • a racket shaft is previously known that is equipped with two depressions extending around the racket shaft, said depressions being located at a distance from each other in the longitudinal direction of the shaft.
  • the transitions between the depressions and the adjoining portions are rounded.
  • a primary object of the present invention is to present a racket shaft/racket that generally is a ergonomically designed in order to give the player a better grip, control, support and balance.
  • Still an object of the present invention is to make certain portions of the racket shaft exchangeable.
  • a further object of the present invention is to provide an improved balancing of the racket shaft.
  • FIG. 1 shows a top view of a racket according to the present invention
  • FIG. 2 shows a detail of the racket shaft of the racket according to FIG. 1 ;
  • FIG. 3 shows a section along III-III in FIG. 2 ;
  • FIG. 4 shows an exploded view of the racket shaft according to FIG. 2 , said shaft being composed of a number of exchangeable parts;
  • FIG. 5 shows the parts of FIG. 4 in assembled condition, where a number of sections are made in order to increase the clarity.
  • the racket according to the present invention shown i FIG. 1 , comprises a racket shaft 1 and a racket head 3 that mutually are rigidly connected in such a way that the existing forces may be transferred between the racket head 3 and the racket shaft 1 .
  • the racket shaft 1 according to the present invention has a new and innovative design while the racket head 3 is of a conventional design.
  • the racket shaft 1 has a first thickened portion or a first bulging 5 and a second thickened portion or a second bulging 7 . Between the first and second bulging 5 and 7 an intermediate portion 9 is provided, a rounded transition being present between the bulgings 5 , 7 and the intermediate portion 9 .
  • Both bulgings 5 and 7 have also a rounded wave shape in the longitudinal direction of the racket shaft 1 .
  • Both bulgings 5 , 7 and the intermediate portion 9 are preferably equipped with an external grip wrap that is symbolised by the oblique lines 10 in FIGS. 1 and 2 . This coating 10 is exchanged when it has been worn out.
  • the two bulgings 5 , 7 of the shaft 1 bring about an adaption to the anatomic gripping shape of the hand.
  • the hand has a receiving negative (concave) gripping shape.
  • a hand grips a clod of clay of suitable size and squeezes it until a comfortable gripping thickness has been achieved the result is an elongated body having a shape that corresponds to the bulgings 5 and 7 of the racket shaft 1 .
  • the reason why the shaft 1 is equipped with two bulgings 5 , 7 is to make it suitable also for a two hand grip that is practised by many players, preferably in connection with backhanders.
  • the distance between the two bulgings 5 , 7 , in the longitudinal direction of the racket shaft 1 may of course vary depending on the size of the hands of the player that is gripping the racket shaft 1 .
  • a core 12 has a general square shape with bevelled corners.
  • a grip portion 13 is provided, said grip portion 13 on its external side having bulgings 5 , 7 and the intermediate portion 9 .
  • the grip portion 13 is equipped with a layer 8 , preferably of rigid plastic, and the cross section of this layer 8 is adapted to the cross section of the core 12 , i.e. the layer 8 defines an internal hole of the grip portion 13 .
  • the rest of the grip portion 13 i.e. the portion having the bulgings 5 , 7 and the intermediate portion 9 , is preferably made out of silicone rubber or foamed rubber. This is of course only an example and the user may of course choose material in the grip portion in order to achieve an optimum of individual adaption.
  • a knob 11 is attached, said knob 11 having a spherical shape in the portion that faces away from the adjacent second bulging 7 .
  • knob 11 At the end of the racket shaft 1 facing away from the racket head 3 a knob 11 is attached, said knob 11 generally having a maximum across dimension T that is essentially larger than the diameter D of the end of the shaft 1 that the knob 11 adjoins to.
  • T and D Preferably, the relationship between T and D is the following 1.5D ⁇ T ⁇ 2D.
  • FIGS. 3 and 4 a preferred structural design of a racket shaft 1 according to the present invention is shown more in detail.
  • FIG. 3 shows the main components constituting the disclosed embodiment of the racket shaft 1 according to the present invention.
  • the racket shaft 1 comprises a core 12 , for instance manufactured from aluminium, plastic, kevlar or graphite.
  • the core 12 and the racket head 3 are manufactured from the same material.
  • the core is manufactured from aluminium it is usually hollow.
  • This core 12 is rigidly connected to the racket head 3 in such a way that existing forces may be transferred between the racket head 3 and the core 12 .
  • the racket shaft 1 also comprises a grip portion 13 that in its turn is equipped with the two bulgings 5 and 7 and the intermediate portion 9 .
  • the core 12 has an external out-of-round cross sectional shape and the grip portion 13 has an internal through going hole 8 having the corresponding out-of-round cross sectional shape. The reason therefore is to avoid that the grip portion 13 rotates relative to the core 12 .
  • the cross sectional shape is octagonal.
  • the racket shaft 1 also comprises the knob 11 that is equipped with an externally threaded portion 14 and a detachable cap 15 that is located on a diametrically opposite side of the knob 11 relative to the threaded portion 14 .
  • the cap 15 is connected to the rest of the knob 11 by means of a thread coupling, the rest of the knob 11 being hollow, see FIG. 4 .
  • FIG. 4 it is shown how the components according to FIG. 3 are assembled in order to create a racket shaft 1 according to the present invention.
  • the grip portion 13 is pushed on the core 12 and the knob 11 is mounted on the free end of the core 12 .
  • the detachable mounting of the knob 11 is effected by having the externally threaded portion 14 to cooperate with an internally threaded hole 16 in the core 12 .
  • a suitable tightening of the knob 11 effects a proper anchoring of the knob 11 on the free end of the core 12 .
  • the hollow knob 11 is filled with lead pellets 17 that gives the possibility to affect the weight distribution of the racket according to the present invention.
  • different sizes of the grip portion 13 it is basically the question of different maximum diameters of the bulgings 5 , 7 and also the mutual distance between the bulgings 5 , 7 .
  • knobs 11 different sizes normally means different across dimensions T.
  • the possibility to detach also means that grip portions 13 manufactured from different materials may be used, this further emphasising the possibility to individual adaption.
  • different materials of the grip portion 13 soft silicone-like rubber, more rigid foamed rubber or a combination of different plastics may be mentioned in an exemplifying and non-restricting purpose. It is also possible that the material used for the grip portion 13 is inherently vibration damping or that vibration damping inlays are locally attached between the core 12 and the grip portion 13 .
  • the grip portion 13 may also have different surface patterns, e.g. grooving, projecting pimples, recessed holes, wave-like embossing. Taken together, proper choice of material and proper surface pattern gives a compact contact with the hand as well as proper absorption of existing sweat. The material and the surface pattern bring about an airiness that enables cooling of the hand and a natural dryout of excessive sweating of the hand.
  • surface patterns e.g. grooving, projecting pimples, recessed holes, wave-like embossing.
  • both the grip portion 13 and the knob 11 are detachably attached to the core 12 .
  • This structural design offers a unique possibility to the individual player to custom-make his/her own racket, i.e. he/she may choose the grip portion 13 that is individually adapted as regards both dimensions, material choice and surface structure.
  • the player may choose a suitable dimension and through the hollowness of the knob 11 , via the filling degree of lead pellets 17 in the hollow knob 11 , affect the weight distribution of the racket according the present invention.
  • the knob 11 attached to the free end of the core 12 , brings about that the hand is given a distinct support at the free end of the shaft portion 1 . This brings about a natural prevention against dropping the racket, i.e. it is in principle not possible for the racket to slide out of the hand. Besides the knob 11 increases the contact surface between the shaft portion 1 and the hand of the player.
  • the knob 11 also brings about other functional benefits when using the racket according to the present invention.
  • the player In tennis it is a distinct benefit for the player to have a large reach in his/her motions and to have a high point of impact relative to the court of the opponent. This is especially important in connection with the serve.
  • the knob 11 somewhat increases the length of the racket shaft 1 , compared to a conventional racket shaft, since the grip fully or partly may be located to the knob 11 . This is of especial importance in connection with the serve and when returning balls close to the sidelines.
  • the internal through going hole of the grip portion 13 and the core 12 have cross sections corresponding to each other.
  • the grip portion 13 is designed from such a flexible material that the internal through going hole of the grip portion 13 adapts to the external shape of the core 12 when the grip portion 13 is mounted on the core 12 , this preferably being done by pushing the grip portion 13 on the core 12 . Also in this case it is avoided that the grip portion 13 rotates relative to the core 12 .
  • the racket shaft 1 comprises a number of exchangeable components.
  • the racket shaft is not equipped with exchangeable components but the components of the racket shaft being permanently connected to each other.
  • the invention is primarily initiated for tennis rackets. However, the principles of the present invention may also be applied in connection with rackets for other sports and in exemplifying end non-restricting purpose squash and badminton may be mentioned. Of course, there will normally be a certain adaption to the sport in question when producing a racket/a racket shaft according to the present invention.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Passenger Equipment (AREA)
  • Fishing Rods (AREA)
US10/530,688 2002-10-08 2003-10-07 Racket shaft and racket equipped with such shaft Abandoned US20060135295A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0202953-6 2002-10-08
SE0202953A SE521900C2 (sv) 2002-10-08 2002-10-08 Racketskaft samt med sådant skaftförsedd racket
PCT/SE2003/001553 WO2004033053A1 (fr) 2002-10-08 2003-10-07 Manche de raquette et raquette equipee d'un tel manche

Publications (1)

Publication Number Publication Date
US20060135295A1 true US20060135295A1 (en) 2006-06-22

Family

ID=20289190

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/530,688 Abandoned US20060135295A1 (en) 2002-10-08 2003-10-07 Racket shaft and racket equipped with such shaft

Country Status (9)

Country Link
US (1) US20060135295A1 (fr)
EP (1) EP1551514A1 (fr)
JP (1) JP2006510395A (fr)
CN (1) CN1703260A (fr)
AU (1) AU2003267910A1 (fr)
CA (1) CA2501242A1 (fr)
RU (1) RU2005113694A (fr)
SE (1) SE521900C2 (fr)
WO (1) WO2004033053A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070191154A1 (en) * 2006-02-10 2007-08-16 Genereux Dana A Racquet sport apparatus & method
US20070191155A1 (en) * 2006-02-06 2007-08-16 Babolat Vs Racket handle of ergonomic character, a racket, and corresponding ranges of handles and of rackets
JP2007209753A (ja) * 2006-02-06 2007-08-23 Babolat Vs 人間工学的特徴を有するラケットハンドル及びラケット並びに対応する一群のハンドル及びラケット
US7276000B1 (en) * 2005-07-01 2007-10-02 Baker Michael B Training grip for a tennis racquet
US20080127721A1 (en) * 2006-12-01 2008-06-05 Shields Daniel D Method, system and apparatus for achieving level balance in an instrument
US20100056308A1 (en) * 2006-11-23 2010-03-04 Babolat Vs Racket handle insert and corresponding handle and racket
US20110152017A1 (en) * 2009-12-18 2011-06-23 Head Technology Gmbh Elastic grip sleeve and grip cap for ball game racket
US20140194230A1 (en) * 2011-06-24 2014-07-10 Marian Lazarov Device for a grip of a tennis racquet
US11576359B2 (en) * 2017-12-05 2023-02-14 Shimano Inc. Fishing rod

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4503463B2 (ja) * 2005-02-17 2010-07-14 Ｓｒｉスポーツ株式会社 テニスラケット
DE102006020564A1 (de) * 2006-05-03 2007-11-08 Kneissl Holding Gmbh Ballschlaggerät, insbesondere Tennis- oder Squashschläger
US8794241B2 (en) * 2006-10-06 2014-08-05 Nbs Suisse Sagl Relaxant device of muscle fascicles in the cervical district
PL384763A1 (pl) * 2008-03-21 2009-09-28 "Draw" Spółka Z Ograniczoną Odpowiedzialnością Zmodyfikowana rączka rakiety tenisowej, rakieta tenisowa wyposażona w zmodyfikowaną rączkę, sposób adaptacji zwykłej rakiety tenisowej i zestaw elementów do adaptacji zwykłej rakiety
CN101837185A (zh) * 2010-05-20 2010-09-22 李能虎 一种羽毛球拍
ITUB20159765A1 (it) * 2015-12-30 2017-06-30 Gianluca Geremia Impugnatura per attrezzature sportive

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US259448A (en) * 1882-06-13 woodhouse
US4664381A (en) * 1985-08-19 1987-05-12 Klink And Aaron Products, Ltd. Grip for tennis racket
US4696842A (en) * 1986-03-26 1987-09-29 Doubt Ruxton C Custom moldable hand grip
US4828261A (en) * 1984-04-14 1989-05-09 Horst Kleylein Handle for athletic equipment
US5556092A (en) * 1994-10-24 1996-09-17 Theken; Randall R. Ergonomic handle
US5605327A (en) * 1994-09-07 1997-02-25 Mccutchen; Wilmot H. Shock damping racquet butt cap
US5924941A (en) * 1994-12-23 1999-07-20 Hagey; Edward H. Hand grip for a racquet
US6159115A (en) * 1999-11-26 2000-12-12 Hsu; Young-Chen Handle structure for a racket
USD488844S1 (en) * 2002-10-08 2004-04-20 Attila Szelenyi Racket for games

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328379A (en) * 1997-08-22 1999-02-24 Dunlop Slazenger Group Ltd Games racket

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US259448A (en) * 1882-06-13 woodhouse
US4828261A (en) * 1984-04-14 1989-05-09 Horst Kleylein Handle for athletic equipment
US4664381A (en) * 1985-08-19 1987-05-12 Klink And Aaron Products, Ltd. Grip for tennis racket
US4696842A (en) * 1986-03-26 1987-09-29 Doubt Ruxton C Custom moldable hand grip
US5605327A (en) * 1994-09-07 1997-02-25 Mccutchen; Wilmot H. Shock damping racquet butt cap
US5556092A (en) * 1994-10-24 1996-09-17 Theken; Randall R. Ergonomic handle
US5924941A (en) * 1994-12-23 1999-07-20 Hagey; Edward H. Hand grip for a racquet
US6159115A (en) * 1999-11-26 2000-12-12 Hsu; Young-Chen Handle structure for a racket
USD488844S1 (en) * 2002-10-08 2004-04-20 Attila Szelenyi Racket for games

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7276000B1 (en) * 2005-07-01 2007-10-02 Baker Michael B Training grip for a tennis racquet
US20070191155A1 (en) * 2006-02-06 2007-08-16 Babolat Vs Racket handle of ergonomic character, a racket, and corresponding ranges of handles and of rackets
JP2007209753A (ja) * 2006-02-06 2007-08-23 Babolat Vs 人間工学的特徴を有するラケットハンドル及びラケット並びに対応する一群のハンドル及びラケット
US20070191154A1 (en) * 2006-02-10 2007-08-16 Genereux Dana A Racquet sport apparatus & method
US20100056308A1 (en) * 2006-11-23 2010-03-04 Babolat Vs Racket handle insert and corresponding handle and racket
US8298101B2 (en) * 2006-11-23 2012-10-30 Babolat Vs Racket handle insert and corresponding handle and racket
US20080127721A1 (en) * 2006-12-01 2008-06-05 Shields Daniel D Method, system and apparatus for achieving level balance in an instrument
US7749091B2 (en) * 2006-12-01 2010-07-06 High Desert Dynamics, Llc. Method, system and apparatus for achieving level balance in an instrument
US20110152017A1 (en) * 2009-12-18 2011-06-23 Head Technology Gmbh Elastic grip sleeve and grip cap for ball game racket
US8500578B2 (en) * 2009-12-18 2013-08-06 Head Technology Gmbh Elastic grip sleeve and grip cap for ball game racket
US20140194230A1 (en) * 2011-06-24 2014-07-10 Marian Lazarov Device for a grip of a tennis racquet
US11576359B2 (en) * 2017-12-05 2023-02-14 Shimano Inc. Fishing rod

Also Published As

Publication number Publication date
CN1703260A (zh) 2005-11-30
SE0202953L (sv) 2003-12-16
AU2003267910A1 (en) 2004-05-04
RU2005113694A (ru) 2006-01-20
WO2004033053A1 (fr) 2004-04-22
SE521900C2 (sv) 2003-12-16
JP2006510395A (ja) 2006-03-30
EP1551514A1 (fr) 2005-07-13
CA2501242A1 (fr) 2004-04-22
SE0202953D0 (sv) 2002-10-08

Similar Documents

Publication Publication Date Title
US20060135295A1 (en) Racket shaft and racket equipped with such shaft
US7416499B2 (en) Sports equipment handle
US5690566A (en) End cap for racket handle
US5993327A (en) Golf putting device and method of using the same to putt a golf ball
JP5115797B2 (ja) 重量可変グリップ
US7651418B2 (en) Structured lacrosse stick
US8517867B2 (en) Ergonomic sports handle
US6916260B1 (en) Tennis racket grip device
TW200911328A (en) Changeable golf grip
US20130196795A1 (en) Modular bat and system
US20150133241A1 (en) Weighted Swing Training Apparatus
JP2000511448A (ja) 大形のグリップ部を有するゴルフクラブシャフト
US8007379B1 (en) Tennis racket with adjustable balance and method for using the same
US20070129186A1 (en) Grip for sports equipment
US20050107181A1 (en) Golf putter shaft and grip and method for gripping golf club
WO2001097927A1 (fr) Dispositif d'entrainement et de mise en condition pour le sport
US8096902B2 (en) Water-based training
US5257782A (en) Racket grip-enhancing device
US12115406B2 (en) Weighted training equipment
US11097146B2 (en) Weighted training equipment
US7264563B2 (en) Racquet for hitting a ball
CA3071753A1 (fr) Batons de sport configures pour demontage selectif
CA2210815A1 (fr) Manche non circulaire de baton de base-ball ou de golf

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

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