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WO1993000969A1 - Structure pour raquette de tennis de table - Google Patents

Structure pour raquette de tennis de table Download PDF

Info

Publication number
WO1993000969A1
WO1993000969A1 PCT/SE1992/000482 SE9200482W WO9300969A1 WO 1993000969 A1 WO1993000969 A1 WO 1993000969A1 SE 9200482 W SE9200482 W SE 9200482W WO 9300969 A1 WO9300969 A1 WO 9300969A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
blade
finger
body structure
structure according
Prior art date
Application number
PCT/SE1992/000482
Other languages
English (en)
Inventor
Lennart Ingvar Brendling
Original Assignee
Brendling Lennart I
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 Brendling Lennart I filed Critical Brendling Lennart I
Publication of WO1993000969A1 publication Critical patent/WO1993000969A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
    • 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
    • A63B60/34—Handles with the handle axis different from the main axis of the implement
    • 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
    • A63B2102/16—Table 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
    • 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
    • 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
    • A63B60/12—Handles contoured according to the anatomy of the user's hand
    • 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
    • A63B60/50—Details or accessories of golf clubs, bats, rackets or the like with through-holes

Definitions

  • the present invention relates to a table tennis racket body structure of the kind which comprises a blade having an outer contour and a handle which is joined to the blade at a position on or in the near vicinity of said outer contour.
  • the fh-grip involves holding the index finger relatively rigid and often fully stretched, with the outer joint of the index finger in contact with the underpart of the racket impact surface for a bh-stroke.
  • An fh-stroke gives a high degree of torque in the wrist and great freedom of movement, although wrist movement is somewhat limited when executing a bh-stroke.
  • a bh-grip involves pressing the outer joint of the thumb against the underpart of the racket impact surface for an fh-stroke.
  • this grip affords a high degree of wrist torque and a high degree of freedom of movement, although wrist mobility is res ⁇ tricted when executing an fh-stroke.
  • the aforesaid limited mobility of the wrist is slightly improved in the neutral position of the hsh-grip, both when executing a bh-stroke and an fh-stroke, although it unavoidably impairs the aforesaid wrist torque.
  • the pen grip gives a very large wrist torque with maxi ⁇ mum freedom of movement when executing an fh-stroke, but results in highly restricted wrist mobility when execut ⁇ ing a bh-stroke.
  • the advantage afforded by the hsh-grip over the pen grip is that all strokes typical to a table tennis player, such as fh-strokes and bh-strokes, both with a top-spin and back-spin effect, can be carried out although with limited force in the case of certain strokes as a result of the limited wrist mobility, as described above.
  • Swedish Design Application No. 90-1331 illustrates a table tennis racket with which the thumb rests against a separate support surface provided on the upper edge of the forehand side and with which the index finger is held extended along the upper edge of the racket blade.
  • the grip limits mobility of the wrist, particularly when executing a backhand stroke.
  • backspin with a backhand stroke with impact at the upper edge of the racket impact point the ball will also touch the index finger.
  • the racket impact point is located above the symmetry line of the forearm and consequently the ball cannot be struck with the force desired.
  • the racket blade is angled to the handle, which is gripped by the upper three fingers and therewith deviates markedly from the hsh-grip, so as to render it impossible for the player to use his/her trained grip and necessitate the player to learn and acquire a completely new repertoire.
  • the racket body taught by FR A 2,611,144 has a recess, or cut-out, which is adapted to accommodate all fingers, with the exception of the thumb, so that said fingers are able to grip around the handle through one and the same aperture.
  • the index finger is not held extended and the hand thus obtains no support for this finger, such support being necessary in order to afford a stable grip. Consequently, a racket body of this construction will "flap" or "wobble" when the game is played at a high tempo.
  • the racket body taught by GB A 2,200,290 is provided with three or four holes through which the fingers of a player's hand are inserted, with the exception of the thumb.
  • the freedom of wrist movement is impaired because the long finger, ring finger and little finger of the player's hand are spaced apart. Furthermore, it is necessary to adapt the hole spacing to the size and shape of each player's hand.
  • the angle defined between the handle and the racket blade formed integrally there ⁇ with is also unsuitable for bh-play.
  • the inventive racket When the racket is gripped neutrally, the inventive racket will provide maximum wrist mobility both when executing backhand strokes and forehand strokes. This eliminates the need for a separate fh-grip and bh-grip in the hsh-grip. This thus allows a player who uses an hsh-grip to use those strokes with which he/she has practiced over the years and to execute these strokes in the manner for which he/she has trained.
  • a suitable term for distinguishing this novel type of grip from the hsh-grip is the term pistol grip.
  • a pistol grip enables the player to execute a loop stroke (play with top-spin) and smash ⁇ es to be executed with greater force, because the impact point of the pistol-gripped racket is positioned cor ⁇ rectly, i.e. slightly obliquely above the symmetry axis of the forearm.
  • the wrist mobility afforded hereby in combination with the force delivered by the forearm and the position of the racket impact point will enable the player to execute a whip-like stroke on both the back ⁇ hand and the forehand side.
  • a backspin stroke can be executed with a more pronounced screw and at higher speed, due to the uninhibited mobil ⁇ ity of the wrist and also because the racket impact point is correctly positioned. This is particularly beneficial to those defensive players who have special ⁇ ized in controlling play by applying backspin to the ball.
  • the inventive racket enables all types of stroke to be used with a very high wrist torque.
  • Figure 1 is a side view of a preferred embodiment of an inventive body structure for table tennis rackets and shows how the racket is gripped by a right-handed player;
  • Figure 2 is a view of the racket grip shown in Figure 1 from above;
  • Figure 3 shows the racket body of Figure 1 when not gripped by a hand
  • Figure 4 is a section view taken on the line A-A in
  • Figure 3; and Figure 5 is a side view of a second embodiment of the inventive racket body and shows how the racket is gripped by a right-handed player.
  • Figures 1 and 2 illustrate how a racket comprised of a body structure 1 and rubber face-coverings (not shown) is gripped by a right-handed table tennis player, so that the racket will lie in the player's hand H between the thumb and the index finger, which is held curved with the finger top inserted through a hole provided therefor, while the remaining three fingers grip around the handle 2 of the body structure.
  • the handle 2 is attached to the playing surface or blade of the body structure 3. More specifically, the blade 3 and the handle 2 are preferably a one-piece structure made of wood or plastic with the handle 2 comprising two outer parts 2a and 2b ( Figure 4) which are glued firmly to that part of the structure which forms the intermediate part 2c of the handle.
  • the outer contour K of the blade 3 illustrated in Fig ⁇ ures 3 and 4 is essentially oval. That part of the contour K which is shown by a broken line does not exist in reality, but is merely an imaginary part of said contour.
  • the oval has a major axis 4 and a minor axis 5.
  • the impact point of the blade 3 is referenced 6.
  • the long axis 7 of the handle 2 is essentially tangen ⁇ tial to or defines a small angle with the contour K and is generally parallel with the major axis 4.
  • the handle 2 is comprised of a central gripping part which is gripped by the long finger, ring finger and little finger of the hand, and two parts 8 and 9 which are joined with the blade 3, of which the upper part 8 is generally parallel with and located close to the minor axis 5.
  • the handle and the blade together define an aperture 10 having elongated closed contours.
  • an aperture 11 which conveniently extends through the handle part 8 and the blade 3 and thus forms a through- passing hole.
  • the aperture or hole 11 may partially intersect the contour K and in some applications is located adjacent to and preferably slightly beneath the minor axis 5.
  • the size and edge-shape of the aperture 11 is adapted to the top of the player's index finger on his playing hand, said index finger top conveniently being inserted into the aperture, as illustrated in Figure 2.
  • the surface against which the index finger lies, i.e. the surface of handle part 8 to the left of the aperture 11 in Figure 3, is appropriately curved.
  • Figure 5 illustrates another embodiment of the inven ⁇ tion.
  • the handle 12 is positioned at the bottom edge of an oval blade 13 having an outer contour K' .
  • the major axis 14 of the blade defines an angle ⁇ of 155-175°, preferably about 160°, with the symmetry line 15 of that part of the handle 12 around which the long finger, ring finger and little finger of the player's hand H, shown in broken lines, grip.
  • the symmetry line 15 defines an angle ⁇ of 90-130°, prefer ⁇ ably 110°, with the symmetry line 19 of that part 18 of the handle provided with a hole or other aperture 16.
  • the handle part 18 is provided with a central slot (not shown) into which part of the oval blade 13 is inserted and there glued.
  • the outermost part of the player's index finger is intended to be inserted into the aper ⁇ ture 16, which may even extend through the blade 13, whereas the remaining fingers, with the exception of the thumb, are intended to lie against one another.
  • the three lines intersect one another centrally beneath the knuckle of the index finger.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)
  • Fishing Rods (AREA)

Abstract

Une structure pour le corps d'une raquette de tennis de table comprend une plaque (3) présentant un profil externe (K) et une poignée (2) qui est réunie à la plaque au niveau du profil externe ou à proximité de celui-ci, la configuration de cette poignée lui permettant d'être agrippée par le majeur, l'annulaire et l'auriculaire de la main utilisée pour jouer, les doigts se touchant réciproquement. La structure est pourvue d'une ouverture (11) conçue pour recevoir l'index, et qui est séparée de la partie de la poignée devant être agrippée par le majeur, l'annulaire et l'auriculaire, le profil externe de cette ouverture étant au moins en partie situé à l'intérieur du profil externe de la tranche.
PCT/SE1992/000482 1991-07-05 1992-06-26 Structure pour raquette de tennis de table WO1993000969A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9102100-6 1991-07-05
SE9102100A SE9102100L (sv) 1991-07-05 1991-07-05 Bordtennisracket

Publications (1)

Publication Number Publication Date
WO1993000969A1 true WO1993000969A1 (fr) 1993-01-21

Family

ID=20383266

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000482 WO1993000969A1 (fr) 1991-07-05 1992-06-26 Structure pour raquette de tennis de table

Country Status (2)

Country Link
SE (1) SE9102100L (fr)
WO (1) WO1993000969A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6969329B2 (en) * 2004-02-13 2005-11-29 Victor Popovich Table tennis paddle with two handles
WO2011153934A1 (fr) * 2010-06-08 2011-12-15 Liu Yong Raquette de tennis de table à poignée améliorée
WO2012106988A1 (fr) * 2011-02-11 2012-08-16 Liu Yong Raquette de tennis de table ayant un trou renforcé pour doigt sur le plateau de frappe
WO2015119748A1 (fr) * 2014-02-10 2015-08-13 Coconut Llc Raquette de tennis de table
USD836736S1 (en) 2014-02-10 2018-12-25 Coconut Llc Table tennis paddle
USD1052023S1 (en) 2023-06-23 2024-11-19 John Minson Pickleball paddle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674268A (en) * 1970-06-04 1972-07-04 Kenneth S Shellman Sr Table tennis paddle construction with improved handle means therefor
GB2200290A (en) * 1986-11-21 1988-08-03 Kwong Ming Wu Table tennis bat
FR2611144A1 (fr) * 1987-02-20 1988-08-26 Navarre Frederic Modele de raquette de tennis de table

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674268A (en) * 1970-06-04 1972-07-04 Kenneth S Shellman Sr Table tennis paddle construction with improved handle means therefor
GB2200290A (en) * 1986-11-21 1988-08-03 Kwong Ming Wu Table tennis bat
FR2611144A1 (fr) * 1987-02-20 1988-08-26 Navarre Frederic Modele de raquette de tennis de table

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6969329B2 (en) * 2004-02-13 2005-11-29 Victor Popovich Table tennis paddle with two handles
WO2011153934A1 (fr) * 2010-06-08 2011-12-15 Liu Yong Raquette de tennis de table à poignée améliorée
WO2012106988A1 (fr) * 2011-02-11 2012-08-16 Liu Yong Raquette de tennis de table ayant un trou renforcé pour doigt sur le plateau de frappe
WO2015119748A1 (fr) * 2014-02-10 2015-08-13 Coconut Llc Raquette de tennis de table
US20150224377A1 (en) * 2014-02-10 2015-08-13 Curvtek LLC Table tennis paddle
USD836736S1 (en) 2014-02-10 2018-12-25 Coconut Llc Table tennis paddle
USD1052023S1 (en) 2023-06-23 2024-11-19 John Minson Pickleball paddle

Also Published As

Publication number Publication date
SE9102100L (sv) 1993-01-06
SE9102100D0 (sv) 1991-07-05

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