WO1993016765A1 - Racket - Google Patents
Racket Download PDFInfo
- Publication number
- WO1993016765A1 WO1993016765A1 PCT/AT1993/000027 AT9300027W WO9316765A1 WO 1993016765 A1 WO1993016765 A1 WO 1993016765A1 AT 9300027 W AT9300027 W AT 9300027W WO 9316765 A1 WO9316765 A1 WO 9316765A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- racket
- weight
- less
- ball
- ratio
- 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
-
- 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
- A63B2049/0201—Frames with defined head dimensions
- A63B2049/0202—Frames with defined head dimensions surface area
-
- 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
- A63B2049/0212—Frames with defined weight
- A63B2049/0213—Frames with defined weight without strings
-
- 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
- A63B2049/0212—Frames with defined weight
- A63B2049/0213—Frames with defined weight without strings
- A63B2049/0214—Frames with defined weight without strings head only
Definitions
- the invention relates to a ball racket, in particular squash rackets.
- ball rackets generally have a relatively long grip part and a string oval that is relatively small in relation to the length of the racket.
- the invention now aims to develop a ball racket, in particular squash racket, of the type mentioned at the outset in such a way that, with a low weight and thus rapid racket acceleration, this also ensures improved ball acceleration with the highest orientation precision and at the same time provides a pleasant playing behavior telt.
- the total weight of the racket in the unstrung state is less than 165 g and the head weight is less than 83 g, in particular less than 78 g.
- the head weight means that weight, which can be measured as support force when the racket is stored at the end of the handle in the horizontal position of the racket at the head end
- Head weight is greater than half the club weight, is considered to be slightly top-heavy, whereas a racket with a lower head weight compared to half the club weight would be described as handle-heavy according to this measurement method.
- the design according to the invention of laying out the racket in an unstrung condition with a weight of less than 165 g and a head weight of less than 83 g means with others
- Racket can be moved to the ball at high speed.
- the rackets known so far have much higher ones
- Head weights are used to achieve acceptable gaming behavior. Even with previously known, extremely light rackets, the head weight was still significantly higher than the highest head weight proposed according to the invention and, in addition to much heavier rackets, are rackets ⁇ ⁇ on the market, which are characterized by a total weight of less than 165 g, but at the same time have a head weight of well over 83 g.
- the balance of the racket achieved by the combination proposed according to the invention leads, despite the low racket weight, to a high degree of stability and to a precise playing behavior, which until now could only be achieved with significantly heavier rackets. At the same time, despite the low racket weight, a similarly good ball acceleration is observed, where
- the design is such that the racket has a striking area of at least 330 cm 2 , in particular at least 350 cm 2 .
- a particularly high ball acceleration can be achieved according to the invention in that the moments of inertia around the end of the handle in a plane containing the covering and in a direction normal thereto are in each case less than 30 gm 2 , in particular less than 28.5 gm 2 are.
- the conditions are advantageously also observed that, for rackets with a heavy weight distance in the unclamped state, measured from the end of the handle, of less than 390 mm the ratio of the unclamped racket weight to the head weight less than 2.07 and that The ratio of the center of gravity to the uncovered racket weight is greater than 2.1, preferably the center of gravity of the uncovered racket from the end of the handle measured between 340 and 380 mm. Finally, the ratio of head weight to mass moment of inertia in the clothing plane should advantageously be less than 2.81. All of these criteria have proven to be particularly advantageous for achieving a neutral playing behavior and result overall in a balanced, rapidly accelerating squash racket with a high degree of impact precision.
- the weight, the head weight and the face area are primarily included in the ball racquet properties improved by the present invention, other criteria have also been considered which are superior in relation to the game properties mentioned revealed, examined more closely. It was determined in this way that particularly favorable properties can be achieved if the ratio of the covering area to the moment of inertia, measured normally to the covering plane, is greater than 14 and in particular greater than 15.
- the ratio values mentioned are consistently given as absolute numerical values, which of course are taken into account in each case for the formation of the quotient. Strictly speaking, physical dimensions would have a corresponding dimension.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
- Toys (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002108879A CA2108879A1 (en) | 1992-02-21 | 1993-02-22 | Racket |
SK1158-93A SK115893A3 (en) | 1992-02-21 | 1993-02-22 | Rocket, especially for squash |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA337/92 | 1992-02-21 | ||
AT0033792A AT404230B (en) | 1992-02-21 | 1992-02-21 | BALL RACKET |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993016765A1 true WO1993016765A1 (en) | 1993-09-02 |
Family
ID=3487912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT1993/000027 WO1993016765A1 (en) | 1992-02-21 | 1993-02-22 | Racket |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0581927A1 (en) |
AT (1) | AT404230B (en) |
CA (1) | CA2108879A1 (en) |
SK (1) | SK115893A3 (en) |
WO (1) | WO1993016765A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4119313A (en) * | 1975-07-12 | 1978-10-10 | Dunlop Limited | Games racquets |
GB2136695A (en) * | 1983-03-18 | 1984-09-26 | Dunlop Ltd | Badminton racket |
DE8617718U1 (en) * | 1986-07-02 | 1986-08-28 | Potutschnig, Wolfgang, 8184 Gmund | Tennis rackets for children |
US5062634A (en) * | 1990-08-31 | 1991-11-05 | Wilson Sporting Goods Co. | Squash racket |
-
1992
- 1992-02-21 AT AT0033792A patent/AT404230B/en not_active IP Right Cessation
-
1993
- 1993-02-22 CA CA002108879A patent/CA2108879A1/en not_active Abandoned
- 1993-02-22 SK SK1158-93A patent/SK115893A3/en unknown
- 1993-02-22 WO PCT/AT1993/000027 patent/WO1993016765A1/en not_active Application Discontinuation
- 1993-02-22 EP EP93903705A patent/EP0581927A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4119313A (en) * | 1975-07-12 | 1978-10-10 | Dunlop Limited | Games racquets |
GB2136695A (en) * | 1983-03-18 | 1984-09-26 | Dunlop Ltd | Badminton racket |
DE8617718U1 (en) * | 1986-07-02 | 1986-08-28 | Potutschnig, Wolfgang, 8184 Gmund | Tennis rackets for children |
US5062634A (en) * | 1990-08-31 | 1991-11-05 | Wilson Sporting Goods Co. | Squash racket |
Also Published As
Publication number | Publication date |
---|---|
ATA33792A (en) | 1998-02-15 |
SK115893A3 (en) | 1994-04-06 |
AT404230B (en) | 1998-09-25 |
EP0581927A1 (en) | 1994-02-09 |
CA2108879A1 (en) | 1993-08-22 |
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