EP0495387A1 - Raquette à cordes pouvant être tendues, pour jeux de balles, en particulier tennis, squash ou équivalent - Google Patents

Raquette à cordes pouvant être tendues, pour jeux de balles, en particulier tennis, squash ou équivalent Download PDF

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Publication number
EP0495387A1
EP0495387A1 EP92100225A EP92100225A EP0495387A1 EP 0495387 A1 EP0495387 A1 EP 0495387A1 EP 92100225 A EP92100225 A EP 92100225A EP 92100225 A EP92100225 A EP 92100225A EP 0495387 A1 EP0495387 A1 EP 0495387A1
Authority
EP
European Patent Office
Prior art keywords
racket
handle
facing
recess
longitudinal axis
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.)
Granted
Application number
EP92100225A
Other languages
German (de)
English (en)
Other versions
EP0495387B1 (fr
Inventor
Peter Suchy
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.)
HAFNER, DIETER, DR.
STIPPL, HUBERT
Suchy Peter
Original Assignee
Stippl Hubert
Suchy Peter
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 Stippl Hubert, Suchy Peter filed Critical Stippl Hubert
Publication of EP0495387A1 publication Critical patent/EP0495387A1/fr
Application granted granted Critical
Publication of EP0495387B1 publication Critical patent/EP0495387B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/028—Means for achieving greater mobility of the string bed
    • 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
    • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
    • 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
    • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
    • A63B2049/0325—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft with two legs having mutually different constructions
    • 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
    • A63B60/48—Details or accessories of golf clubs, bats, rackets or the like with corrugated cross-section

Definitions

  • the invention / innovation relates to a string-stringable racket for playing balls. This addresses in particular the area of tennis rackets, badminton rackets, squash rackets or other rackets which have a handle which is connected via a central region to a rip-like racket head into which the strings forming the playing surface can be retracted.
  • the center area of the racket is formed in conventional rackets by two frame branches enclosing an approximately triangular recess.
  • the two frame branches run together at the handle-stringed end and merge into the handle.
  • the lines of the two frame branches flow continuously into the ripe head.
  • the ripe-like club head can be oval, elliptical or a circular shape, in the prior art a wide variety of designs of the rip-like club head are known.
  • Such phenomena can intensify if the ball is hit outside the so-called “sweet spot”, ie not with the optimal area of the striking surface, but also in the case of strikes in which the ball is hit in the "sweet spot” area, vibration energy passed through the bat into the player's hand and is therefore no longer available as energy for the ball to be played back.
  • the invention / innovation is based on the object of improving a racket with the features of the preamble of claim 1 with regard to its vibration and resonance properties.
  • This object is achieved according to the characterizing part of the claim in that the recess between the two frame branches, which is essentially triangular in shape, is asymmetrical in relation to the central longitudinal axis of the racket, which extends centrally through the handle and the club head.
  • the two frame branches mentioned differ in their shape.
  • one frame branch can be thicker than the other or else longer than the other frame branch.
  • bulges or thickenings which are provided in the frame branches and protrude into the receptacle, at different locations to different extents.
  • Purpose and goal of these consciously brought about Asymmetry is to at least partially compensate for vibrations running from the club head to the handle, which must pass through the center area of the racket, i.e. the two frame branches, in the area of the frame branches, that is to say, to shift their running times so that they no longer overlap in the handle area and can even reinforce, but at least partially compensate, ie cancel.
  • the 3 corners of the recesses should be rounded with three different rounded corners.
  • This measure also contributes to making the center area of the racket largely resonance-free, so that the center area offers a vibration separation between the club head and the handle, although it has the necessary strength and stability that is necessary for a sensitive game. Further advantageous features relating to the central area result from subclaims 5-7. Measurements on a prototype racket have shown that the measures mentioned actually lead to a resonance optimization of the racket.
  • Claims 14-16 deal with a particularly resonance-optimized cross-sectional configuration of the ripe-like racket head, it being emphasized that corresponding areas in rackets according to the prior art do not have the two adjacent tubular recesses, but only have one tubular recess which differs from that in the Strings struck through racket head. It is advantageous for the resonance-optimized properties of the racket if the strings are drawn in directly between the two tubular recesses in separate bores which penetrate the racket head material and without the interposition of sleeves or strips.
  • the racket generally designated 1, consists of a handle 2, a hoop-like racket head 3, in which the strings 5 forming the playing surface 4 can be drawn in crosswise and a central region 6, which is formed by two frame branches 7, 8 which enclose an approximately triangular recess 9 between them.
  • the recess 9 is asymmetrical in relation to the central longitudinal axis 10 of the racket 2, which extends centrally through the handle 2 and the racket head 3.
  • Each of the two frame branches 7 and 8 has a thickening 11, 12 protruding into the recess 9, the thickening 11 of the first frame branch 7 being arranged in the region of the recess 9 facing the handle 2, the thickening 12, however, being in the Area of the recess 9 facing the club head 3.
  • the three corners of the recess are rounded off with three different corner curves 13, 14, 15, the center of the lower corner curve 13 facing the handle 2 being at a lateral distance from the central longitudinal axis 10.
  • the centers of the corner curves 14 and 15 facing the club head 3 are at different distances from the club 1 from the central longitudinal axis.
  • the inner edge 16 of the first frame branch 7 facing the recess 9 is shorter than the inner edge 17 of the second frame branch 8 facing the recess 9, which is due to the fact that the corner rounding 15 is moved further into the club head area than the corner rounding 14 on the other side .
  • the string-covered playing surface 4 of the club head 3 is spanned by two circles 18, 19 with different radii, the two circles in the side area of the club head being merged into one another by a transition.
  • the radii of the two circles 18, 19 behave approximately as 0.94 to 0.83, which essentially corresponds to the vibration ratios between the fourth and fifth.
  • the center 20 of the larger circle 18 is arranged at the intersection of the smaller circle 19 with the central longitudinal axis 10.
  • the corner rounding 14 facing the club head 3 behaves like 1.111 to 0.9375
  • the distances projected onto the central longitudinal axis 10 between the center 21 of the handle and the corner rounding 13 relate to the distances projected onto the longitudinal axis between the corner rounding 13 and the corner rounding 15 like 1.111 to 1.0.
  • the rip-like club head 2 shown there has in its cross section two tubular recesses lying next to one another 22, 23, with each tube cross section being essentially spiral, which is done in that the inner surface 25 facing the string bore 24 of the tubular recesses 22, 23 are formed with a larger radius, which is on the frame side facing the playing surface at points 26 merges into a smaller radius that defines the inner surfaces of the tubular recesses 22, 23 on the outside of the frame.
  • the radius transitions of the helical tube cross-sections merge into one another, each with a convex rounded portion 27, which lie opposite one another on both sides of the side bore 24.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pulmonology (AREA)
  • Golf Clubs (AREA)
  • Laminated Bodies (AREA)
  • Physical Vapour Deposition (AREA)
  • Cosmetics (AREA)
  • Pivots And Pivotal Connections (AREA)
EP92100225A 1991-01-12 1992-01-09 Raquette à cordes pouvant être tendues, pour jeux de balles, en particulier tennis, squash ou équivalent Expired - Lifetime EP0495387B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9100325U 1991-01-12
DE9100325U DE9100325U1 (fr) 1991-01-12 1991-01-12

Publications (2)

Publication Number Publication Date
EP0495387A1 true EP0495387A1 (fr) 1992-07-22
EP0495387B1 EP0495387B1 (fr) 1996-04-10

Family

ID=6863284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100225A Expired - Lifetime EP0495387B1 (fr) 1991-01-12 1992-01-09 Raquette à cordes pouvant être tendues, pour jeux de balles, en particulier tennis, squash ou équivalent

Country Status (4)

Country Link
EP (1) EP0495387B1 (fr)
AT (1) ATE136474T1 (fr)
DE (2) DE9100325U1 (fr)
ES (1) ES2088508T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821756A1 (fr) * 2001-03-12 2002-09-13 Rossignol Sa Raquette de tennis, de squash ou de badmington

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031180A1 (de) * 1990-10-03 1992-04-09 Matthias S Bothe Schlaeger, insbesondere tennis-, squash-, badminton- oder racketballschlaeger
FR2689022B1 (fr) * 1992-03-31 1994-10-28 Rossignol Sa Raquette de tennis ou assimilé.
FR2707506B1 (fr) * 1993-06-29 1995-09-08 Rossignol Sa Raquette de tennis ou analogue.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322606A (en) * 1971-08-12 1973-07-11 Yoneyama Racket Kk Games racket
EP0074339A1 (fr) * 1981-09-04 1983-03-16 Carlo Gibello Raquette de tennis
US4413822A (en) * 1981-07-31 1983-11-08 American Sports Equipment Elastic core composite structure and method of making same
WO1989002296A1 (fr) * 1987-09-18 1989-03-23 Kneissl Tirol Sportartikel Ag Dispositif de frappe de balle, notamment raquette de tennis ou de squash
WO1990014870A2 (fr) * 1989-06-06 1990-12-13 Josef Baumgartner Raquette de tennis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322606A (en) * 1971-08-12 1973-07-11 Yoneyama Racket Kk Games racket
US4413822A (en) * 1981-07-31 1983-11-08 American Sports Equipment Elastic core composite structure and method of making same
EP0074339A1 (fr) * 1981-09-04 1983-03-16 Carlo Gibello Raquette de tennis
WO1989002296A1 (fr) * 1987-09-18 1989-03-23 Kneissl Tirol Sportartikel Ag Dispositif de frappe de balle, notamment raquette de tennis ou de squash
WO1990014870A2 (fr) * 1989-06-06 1990-12-13 Josef Baumgartner Raquette de tennis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821756A1 (fr) * 2001-03-12 2002-09-13 Rossignol Sa Raquette de tennis, de squash ou de badmington

Also Published As

Publication number Publication date
ES2088508T3 (es) 1996-08-16
EP0495387B1 (fr) 1996-04-10
DE59205921D1 (de) 1996-05-15
ATE136474T1 (de) 1996-04-15
DE9100325U1 (fr) 1991-04-04

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