EP1201271A1 - Tennisschlägerrahmen - Google Patents
Tennisschlägerrahmen Download PDFInfo
- Publication number
- EP1201271A1 EP1201271A1 EP01420206A EP01420206A EP1201271A1 EP 1201271 A1 EP1201271 A1 EP 1201271A1 EP 01420206 A EP01420206 A EP 01420206A EP 01420206 A EP01420206 A EP 01420206A EP 1201271 A1 EP1201271 A1 EP 1201271A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame according
- intermediate portion
- frame
- racket
- reinforcing means
- 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.)
- Withdrawn
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
-
- 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
- A63B49/10—Frames made of non-metallic materials, other than wood
-
- 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
- A63B49/14—Protection devices on the frame
-
- 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
- A63B2049/0211—Frames with variable thickness of the head in a direction perpendicular to the string plane
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
Definitions
- the present invention relates to a racket frame, a racket provided with such a frame, as well as a set of several of these frames.
- the invention relates more particularly to a racket provided a sieve, such as a tennis racket, badminton racket or squash.
- the two tubes interiors are arranged side by side, so that their adjacent walls form a transverse rib, intended reinforce the frame, while the presence of the outer tube reduces stresses that may occur at this rib.
- the invention proposes to produce a racket frame constituting an alternative to the prior art presented above.
- a racket frame including tennis, squash or badminton, including a tubular body, characterized in that said tubular body has at least one intermediate portion in the vicinity of which are provided with reinforcing means, these means reinforcement defining, with this intermediate portion, a spacer volume extending over the entire periphery outside of said intermediate portion.
- the invention also relates to a racket, including tennis, squash or badminton, including a frame with a sieve and a rope stretched around of this sieve, characterized in that this frame is as defined above.
- the invention finally relates to a set of frames, comprising several types of frames as defined above.
- the racket illustrated in Figure 1 which is designated as a whole by the reference 2, includes a handle 4, surrounded by a covering strip 6, also called “grip”.
- This handle is extended by a sieve 8, of oval shape, with the interior of which a rope is stretched 10.
- the area of junction between the handle and the sieve, also called core 12 comprises two divergent branches 14, connected by a bridge 16 at their end opposite to the handle 4.
- the handle 4, the screen 8 and the heart 12, which form the racket frame, have a rigid tubular body 18 illustrated in particular in Figure 2, which is for example made made of aluminum or more advantageously of composite material.
- This tubular body could for example be made from carbon fibers which can also be mixed with other types of fibers, such as glass fibers, all these fibers being linked in a matrix which can be a thermosetting or thermoplastic resin.
- a matrix in epoxy resin may for example be advantageously used.
- This tubular body 18 has a main portion 20 of substantially constant section, as well as a portion intermediate 22, forming a constriction.
- the latter which is coaxial with the main portion 20, has a dimension transverse lower than this and is connected to it by via two peripheral shoulders 24.
- this portion intermediate 22 is present on one of the branches 14 of the heart 12. Alternatively, it can equip another frame region. It is also possible to envisage several similar intermediate portions.
- a reinforcing element 26 tubular in shape, covers the intermediate portion 22. A this effect, this element 26 extends between the regions of the main portion 20 adjacent to the shoulders 24.
- This element 26 is made for example of metal, material plastic or, preferably, a composite material. He is by elsewhere coaxial with the main portion 20, as well as with the intermediate portion 22. It is fixed on the regions above of the main portion 20, rigidly.
- the internal wall of the reinforcing element 26 thus forms, with the external wall opposite the intermediate portion 22, an intermediate volume 28, of annular shape, extending over the whole of the periphery of this intermediate portion 22.
- This intermediate volume 28 has a longitudinal dimension, or length l , comprised, for example, between 2 and 10 cm, as well as a transverse dimension, or thickness e , comprised, for example, between 0.5 and 5 mm. It is filled by means of a gas, which can in particular be air.
- FIG. 4 illustrates a first alternative embodiment of the invention, in which the mechanical elements analogous to those of FIGS. 1 and 2 are assigned the same reference numbers, increased by 50.
- the tubular element 26 is replaced by several rods 76, which extend around the periphery of the intermediate portion 72.
- FIG. 5 illustrates a second alternative embodiment of the invention, in which the mechanical elements analogous to those of FIGS. 1 and 2 are assigned the same reference numbers, increased by 100.
- the tubular element 26 is replaced by several bands 126, forming arcs of a circle, which extend to the outer periphery of the intermediate portion 122.
- FIGS. 1 and 2 illustrates an additional variant of the invention, in which similar mechanical elements to those of FIGS. 1 and 2 are assigned the same numbers of reference, increased by 150.
- the reinforcing element 176 is rigidly fixed, only at one end, on the main portion 170. On the other hand, it is linked to this last, at its other end, with the interposition of a deformable ring 180.
- This ring allows a degree of freedom, along the axis main A, between main portion 170 and the element of reinforcement 176.
- This ring can for example be glued at once to this portion 170 and to this element 176, so it's subject to some shearing, during their mutual displacement along axis A.
- this ring may not be glued but simply to be interposed between position 170 and the reinforcing element 176, so that it is able to rub along these, during their mutual displacement.
- the intermediate volume 178 is filled with a foam 182, which is for example of the EVA (ethylene-vinyl-acetate) type.
- foam 182 can be replaced by any other material which does not significantly influence the mechanical behavior of the whole racket. he can these include, among other things, gel.
- This intermediate volume is neutral with regard to behavior racket mechanics, insofar as it does not constitute not a structural element of the latter. It indeed forms a bifurcation between the intermediate portion of the body main and reinforcing means, and contributes to them mechanically separate. This volume does not contradict the operation of the racket, especially with regard to relates to deflection and shear.
- this intermediate portion may have a substantially transverse dimension analogous to that of this main portion.
- this intermediate portion is then surrounded by a larger diameter reinforcement area, which can be produced as a tubular element or as elements discrete, as in Figures 3 to 5.
- reinforcing means extending to the periphery of an intermediate portion of the tubular body, belonging to the racket frame, is advantageous. Indeed, these reinforcing means make it possible to increase the rigidity of the racket according to the invention.
- deformable means modulates the rigidity given to this racket. Of so it is possible to create a range of snowshoes having various rigidities, depending in particular on the user needs.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Pulmonology (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0013296 | 2000-10-17 | ||
FR0013296A FR2815259B1 (fr) | 2000-10-17 | 2000-10-17 | Cadre de raquette, raquette comprenant un tel cadre et jeu de tels cadres |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1201271A1 true EP1201271A1 (de) | 2002-05-02 |
Family
ID=8855444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01420206A Withdrawn EP1201271A1 (de) | 2000-10-17 | 2001-10-16 | Tennisschlägerrahmen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6592475B2 (de) |
EP (1) | EP1201271A1 (de) |
JP (1) | JP2002136623A (de) |
FR (1) | FR2815259B1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2815259B1 (fr) * | 2000-10-17 | 2003-01-03 | Babolat Vs | Cadre de raquette, raquette comprenant un tel cadre et jeu de tels cadres |
TWM242251U (en) * | 2003-07-01 | 2004-09-01 | Yuan Min An Entpr Co Ltd | Racket with shock absorption features |
DE102004054190B3 (de) * | 2004-11-10 | 2006-05-18 | Völkl Tennis GmbH | Ballspielschläger, insbesondere Tennisschläger |
ES2324055T3 (es) * | 2006-04-11 | 2009-07-29 | Prince Sports, Inc. | Procedimiento para la fabricacion de una raqueta de deporte. |
WO2009027906A1 (en) * | 2007-08-24 | 2009-03-05 | Prince Sports Inc. | An improved sports stick structure |
US9630065B2 (en) * | 2013-10-14 | 2017-04-25 | Tri-Great International Ltd. | Hollow fiber pipe structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4031181A (en) * | 1972-04-05 | 1977-06-21 | General Dynamics Corporation | Method for molding high strength facing |
DE3541590C1 (en) * | 1985-11-25 | 1987-03-26 | Voelkl Franz Ski | Ball-game racket |
US6012996A (en) | 1998-03-05 | 2000-01-11 | Shenly Won Sport Co., Ltd. | Game racket frame made of fiber reinforced plastic |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4983242A (en) * | 1988-11-02 | 1991-01-08 | Roland Reed | Tennis racquet having a sandwich construction, vibration-dampening frame |
CA2042484C (en) * | 1991-05-13 | 1996-06-25 | Chin-San You | Ball bat |
US5220719A (en) * | 1992-01-06 | 1993-06-22 | You Chin San | Method of making game racket frame |
US5368298A (en) * | 1994-01-07 | 1994-11-29 | You; Chin-San | Game racket of composite material |
FR2815259B1 (fr) * | 2000-10-17 | 2003-01-03 | Babolat Vs | Cadre de raquette, raquette comprenant un tel cadre et jeu de tels cadres |
-
2000
- 2000-10-17 FR FR0013296A patent/FR2815259B1/fr not_active Expired - Fee Related
-
2001
- 2001-10-16 JP JP2001318314A patent/JP2002136623A/ja active Pending
- 2001-10-16 EP EP01420206A patent/EP1201271A1/de not_active Withdrawn
- 2001-10-17 US US09/977,968 patent/US6592475B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4031181A (en) * | 1972-04-05 | 1977-06-21 | General Dynamics Corporation | Method for molding high strength facing |
DE3541590C1 (en) * | 1985-11-25 | 1987-03-26 | Voelkl Franz Ski | Ball-game racket |
US6012996A (en) | 1998-03-05 | 2000-01-11 | Shenly Won Sport Co., Ltd. | Game racket frame made of fiber reinforced plastic |
Also Published As
Publication number | Publication date |
---|---|
US20020052256A1 (en) | 2002-05-02 |
FR2815259B1 (fr) | 2003-01-03 |
US6592475B2 (en) | 2003-07-15 |
FR2815259A1 (fr) | 2002-04-19 |
JP2002136623A (ja) | 2002-05-14 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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17P | Request for examination filed |
Effective date: 20020907 |
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AKX | Designation fees paid |
Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20050504 |