WO1990014870A2 - Tennisschläger - Google Patents
Tennisschläger Download PDFInfo
- Publication number
- WO1990014870A2 WO1990014870A2 PCT/EP1990/000872 EP9000872W WO9014870A2 WO 1990014870 A2 WO1990014870 A2 WO 1990014870A2 EP 9000872 W EP9000872 W EP 9000872W WO 9014870 A2 WO9014870 A2 WO 9014870A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- racket
- head
- axis
- extended
- tennis
- Prior art date
Links
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
- 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
- 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
- A63B60/34—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
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B2049/0217—Frames with variable thickness of the head in the string plane
-
- 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
Definitions
- the invention relates to a tennis racket.
- the present invention surprisingly creates a tennis racket which has a clearly recognizable tendency towards better and more correct racket management for tournament or club players as well as for inexperienced players and even beginners. This is because the
- Racket is formed and / or shaped in a suitable manner so that the center of gravity of the racket head is offset from the extended grip axis.
- the asymmetrical arrangement of the center of weight of the club head means that the racket is offset from the extended grip axis in a certain one
- the eccentric arrangement of the center of gravity creates a certain higher inertia but only with regard to an undesired twisting of the racket when the ball is not hit optimally, which brings about the desired increase in rotational stability, regardless of which club head half the ball is hit with.
- the racket according to the invention with the center of gravity of the racket head offset from the extended grip axis can be formed by an asymmetrical racket shape or by a one-sided weight distribution or subsequent one-sided attachment of additional low weights
- a solution is provided in a preferred embodiment in which the racket head axis is slightly offset or lies inclined to the extended grip axis, thereby to offset the center of gravity of the club head and the playing surface laterally to the extended grip axis. Slight deviations in the inclination angle are sufficient.
- the effect can be supported by an asymmetrical face shape or by the already mentioned additional asymmetrical weight distribution.
- an asymmetrical weight distribution in the form of an additionally necessary asymmetrically distributed or provided weight leads to a slight increase in the weight of the racket as a whole, which is perhaps less preferred by some games.
- a tennis racket that is angled almost at right angles, similar to a boomerang, is said to have been proposed for extreme topspin shots.
- the aim of this extreme construction of the longitudinal axis of the racket head aligned with respect to one another to the grip axis was to enable an almost whip-like stroke movement to achieve a top-spin stroke, in which the racket head is pulled longitudinally over the ball.
- the extended grip axis then no longer cuts the club head, such a club is not at all comparable to a club proposed in the present invention, since with such an extreme angle for normal mirrors, beginners, up to tournament players, a normal tennis game is not possible.
- Figure 1 a side view of a first embodiment of a tennis racket according to the invention with an inclined striking head surface
- FIG. 2 a second exemplary embodiment in a side view with the central racket head axis offset to the extended grip axis;
- Figure 3 a third embodiment with asymmetrical
- Figure 4 a fourth embodiment with asymmetrical
- a tennis racket with a handle 1, a racket head 3 with a corresponding club face is shown.
- the handle 1 merges into a V-shaped shaft 9, via which the frame 7 of the club head 3, which is generally integral with the shaft 9, is held.
- the axis of symmetry forming the racket head longitudinal axis 11 is inclined to the extended grip axis 13, so that the racket Head center of gravity 15 comes to lie offset to the extended handle axis 13.
- the deviation can be such that the upper apex 17 of the club head 3 to the extended grip axis 13 is in a range of 1 cm to 10 cm, but preferably less than 8 cm, 6 cm, especially 5 cm or up to 4 cm.
- the racket head longitudinal axis 11 deviates from the grip axis 13 at an angle of more than 2 ° and less than 30 °, but especially less than 20 °, 16 °, 14 ° or especially 12 ° to the grip axis 13.
- the preferred angular range should be above 4 °, 6 ° or above all 8 °, so that an optimal range is between 8 ° and 12 ° at an angle intersection in the shaft area. It can be seen from the illustration according to FIG.
- This “kink” can preferably be in a range from 1/10 to 8/10 starting from the club head 3, preferably in a range of around 4/10 of the entire shaft length. Therefore, the distance from the upper vertex 17 to the extended handle axis 13 may even decrease to 0.4 cm or 0.5 cm, 0.6 cm or even 0.8 cm. Optimal and maximum values of less than 3.5 cm, 3 cm and in particular also 2.6 cm, 2.2 cm and 2 cm often already lead to optimal beating and playing behavior.
- an angular deviation of only 1 ° or more between the racket longitudinal axis 11 and the grip axis 13 may be sufficient and cheap.
- an optimal angle range below 12 ° can also be optimal, especially for experienced players up to a maximum of 11 °, 10 °, 9 °, 8 °, 7 °, 6 ° or even less than 5 ° or 4 °.
- only slightest deviations in angle are favorable in certain cases, since then the racket comes very close to a conventional racket and nevertheless still shows the advantages according to the invention.
- intersection or "kink" between the longitudinal axis 11 of the racket and the handle axis 13 can be such that the point of intersection is preferably outside of the racket head covering, perhaps in the range from the racket head frame to half the distance to the beginning of the
- the extended grip axis 13 not only cuts the playing surface of the club head 3, but above all also the so-called. "Sweet spot"
- the point of intersection between the longitudinal axis 11 of the club head and the handle axis 13 can also lie at any other point, even within the face.
- Racket head longitudinal axis 11 and the grip axis 13 migrates downwards to infinity via the handle 1 until the racket head longitudinal axis 11 comes to lie parallel to the grip axis 13. It is clear from this exemplary embodiment in particular that the angle between the longitudinal axis 11 of the club head and the handle axis 13 can be as small as desired and even 0 ° if the intersection point is placed further and further infinitely beyond the end of the handle , so that a sufficient lateral offset of the racket longitudinal axis 11 to the grip axis 13 in the area of the striking head surface, that is to say the covering surface, is achieved. To this extent, reference is made to the distance values between apex 17 to the extended handle axis 13, as explained above.
- the lower limit of the deviation of the apex 17 from the extended grip axis 13 can become even lower, for example up to decrease to 0.4 cm or even 0.3 cm or 0.2 cm as the lowest value.
- the distance between the axes can be, for example, less than 4 cm, preferably less than 3 cm, especially less than 2.5 cm, 2 cm or 1.5 cm.
- An offset starts from 0.5 cm upwards, especially around 0.75 cm or up to 1 cm is fully sufficient to achieve the
- the club head 3 is asymmetrical. Due to the asymmetrical design, the club head center of gravity 15 is at an otherwise neither inclined nor offset to the handle axis 13, the club head longitudinal axis 11 is also offset to the handle axis 13. This also achieves the desired effects.
- a tennis racket which is conventional per se is shown.
- the latter has additional weights 21 distributed asymmetrically on the racket head frame 7, which can be achieved by appropriate incorporation of other heavier materials or by thickening a racket or by additional attachment of weights 21.
- This also causes the center of gravity 15 of the racket head 3, as shown, to be offset from the handle axis 13.
- Strike posture and above all the rotational stability is significantly improved in an unforeseeable manner compared to previously known tennis rackets.
- the racket head only has to have a slight deviation from the extended grip axis, preferably in the manner of a slightly inclined racket head.
- the two webs diverging from the handle in a fork shape and leading to the racket head frame can be of slightly different lengths or slightly differently curved.
- the club head itself is preferably symmetrical.
- the racket head formed in this way therefore has only slight differences from conventional tennis rackets which are designed completely symmetrically to the extended grip axis and which are almost not perceptible by many. This has advantages above all when it comes to serve and volley, where excessive deviations are not desired.
- the tennis racket according to the invention offers clearer advantages in handling, in the S-stroke and in the striking structure, whereby a higher accuracy and a clean stroke support become .
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89110175 | 1989-06-06 | ||
EP89110175.0 | 1989-06-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1990014870A2 true WO1990014870A2 (de) | 1990-12-13 |
WO1990014870A3 WO1990014870A3 (de) | 1991-01-24 |
Family
ID=8201465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1990/000872 WO1990014870A2 (de) | 1989-06-06 | 1990-06-01 | Tennisschläger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0530180A1 (de) |
JP (1) | JPH04505570A (de) |
AU (1) | AU5741290A (de) |
WO (1) | WO1990014870A2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0495387A1 (de) * | 1991-01-12 | 1992-07-22 | Hafner, Dieter, Dr. | Saitenbespannbarer Schläger zum Spielen von Bällen, insbesondere Tennis-, Squash-Schläger oder dergleichen |
EP0501895A1 (de) * | 1991-02-28 | 1992-09-02 | Skis Rossignol S.A. | Schläger mit länglicher Asymmetrie |
BE1005097A5 (fr) * | 1991-10-31 | 1993-04-20 | Simonini Silvio | Raquette de tennis avec manche deplace parallelement par rapport a l'axe du cadre formant un ensemble en forme de "s" permettant une prise en main parfaitement ergonomique et de consequence une efficacite de jeu accrue. |
FR2692489A1 (fr) * | 1992-06-19 | 1993-12-24 | Rossignol Sa | Raquette à asymétrie longitudinale. |
WO2004085007A1 (de) * | 2003-03-24 | 2004-10-07 | Harald Turzer | Ballschläger |
DE102020004307B3 (de) | 2020-07-17 | 2021-09-30 | Head Technology Gmbh | Charakterisierung eines Ballspielschlägerrahmens |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013034807A (ja) * | 2011-08-03 | 2013-02-21 | Norimasa Sasaki | テニスラケット |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2741741A1 (de) * | 1975-12-03 | 1978-03-30 | Kuebler & Co | Schlaeger fuer tennis o.dgl. spiele |
US4360201A (en) * | 1979-03-05 | 1982-11-23 | Roy J. Biehl | Racquetball or tennis racquet |
EP0074339A1 (de) * | 1981-09-04 | 1983-03-16 | Carlo Gibello | Tennisschläger |
GB2146905A (en) * | 1983-04-25 | 1985-05-01 | Nan Lo Kun | Pelota or squash racket frame |
WO1989002296A1 (en) * | 1987-09-18 | 1989-03-23 | Kneissl Tirol Sportartikel Ag | Ball-striking device, in particular tennis or squash racket |
-
1990
- 1990-06-01 JP JP2508358A patent/JPH04505570A/ja active Pending
- 1990-06-01 WO PCT/EP1990/000872 patent/WO1990014870A2/de not_active Application Discontinuation
- 1990-06-01 EP EP90908511A patent/EP0530180A1/de not_active Withdrawn
- 1990-06-01 AU AU57412/90A patent/AU5741290A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2741741A1 (de) * | 1975-12-03 | 1978-03-30 | Kuebler & Co | Schlaeger fuer tennis o.dgl. spiele |
US4360201A (en) * | 1979-03-05 | 1982-11-23 | Roy J. Biehl | Racquetball or tennis racquet |
EP0074339A1 (de) * | 1981-09-04 | 1983-03-16 | Carlo Gibello | Tennisschläger |
GB2146905A (en) * | 1983-04-25 | 1985-05-01 | Nan Lo Kun | Pelota or squash racket frame |
WO1989002296A1 (en) * | 1987-09-18 | 1989-03-23 | Kneissl Tirol Sportartikel Ag | Ball-striking device, in particular tennis or squash racket |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0495387A1 (de) * | 1991-01-12 | 1992-07-22 | Hafner, Dieter, Dr. | Saitenbespannbarer Schläger zum Spielen von Bällen, insbesondere Tennis-, Squash-Schläger oder dergleichen |
EP0501895A1 (de) * | 1991-02-28 | 1992-09-02 | Skis Rossignol S.A. | Schläger mit länglicher Asymmetrie |
FR2673381A1 (fr) * | 1991-02-28 | 1992-09-04 | Rossignol Sa | Raquette a asymetrie longitudinale. |
BE1005097A5 (fr) * | 1991-10-31 | 1993-04-20 | Simonini Silvio | Raquette de tennis avec manche deplace parallelement par rapport a l'axe du cadre formant un ensemble en forme de "s" permettant une prise en main parfaitement ergonomique et de consequence une efficacite de jeu accrue. |
FR2692489A1 (fr) * | 1992-06-19 | 1993-12-24 | Rossignol Sa | Raquette à asymétrie longitudinale. |
WO2004085007A1 (de) * | 2003-03-24 | 2004-10-07 | Harald Turzer | Ballschläger |
US7553246B2 (en) | 2003-03-24 | 2009-06-30 | Harald Turzer | Racket |
DE102020004307B3 (de) | 2020-07-17 | 2021-09-30 | Head Technology Gmbh | Charakterisierung eines Ballspielschlägerrahmens |
Also Published As
Publication number | Publication date |
---|---|
AU5741290A (en) | 1991-01-07 |
WO1990014870A3 (de) | 1991-01-24 |
JPH04505570A (ja) | 1992-10-01 |
EP0530180A1 (de) | 1993-03-10 |
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