EP1452207A1 - Raquette pour jeux de balle - Google Patents

Raquette pour jeux de balle Download PDF

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Publication number
EP1452207A1
EP1452207A1 EP04004444A EP04004444A EP1452207A1 EP 1452207 A1 EP1452207 A1 EP 1452207A1 EP 04004444 A EP04004444 A EP 04004444A EP 04004444 A EP04004444 A EP 04004444A EP 1452207 A1 EP1452207 A1 EP 1452207A1
Authority
EP
European Patent Office
Prior art keywords
racket
ball game
stiffening elements
frame
game racket
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
EP04004444A
Other languages
German (de)
English (en)
Other versions
EP1452207B1 (fr
Inventor
Jürgen Wilke
Herfried Lammer
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.)
Head Technology GmbH
Original Assignee
Head Technology GmbH
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 Head Technology GmbH filed Critical Head Technology GmbH
Priority to EP08019688A priority Critical patent/EP2025371A1/fr
Publication of EP1452207A1 publication Critical patent/EP1452207A1/fr
Application granted granted Critical
Publication of EP1452207B1 publication Critical patent/EP1452207B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
    • 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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B2049/0217—Frames with variable thickness of the head in the string plane

Definitions

  • the present invention relates to a racket for ball games, in particular one Tennis racket, squash racket, badminton racket and racquetball racket, with one Frame which has a head area for receiving a covering and a handle or Has grip section.
  • rackets often have a club head adjoining heart region or a fork, which merges into the grip section.
  • a struck, i.e. H. one on the covering of the racket impacting ball an elastic deformation of the racket or an elastic Displacement of the head area from its longitudinal axis and leads to deterioration the accuracy.
  • Such a deflection of the club head is for the direction of played ball with responsibility. Even a slight deflection of the club head can be a not inconsiderable deviation for a ball played over the length of the field the actual target point of the ball from the desired one.
  • the ball moves away from the bent or deflected one Bat. The bat goes into its free muted after separation from the ball Vibration (natural frequency) over.
  • a ball hitting the racket or a hit ball causes forces, which are transferred to the player via the racket.
  • forces or Vibrations or shocks are responsible, at least in the long-term effect, that the player has health problems such as the so-called tennis elbow occur.
  • US-A-5,462,274 discloses a tennis racket, the main strings, used in one Longitudinal direction of the racket are tensioned, and cross strings in a transverse direction are stretched perpendicular to the longitudinal direction, the ratio of the tensile stress of each main string for tension of each cross string ranges from 2.5 / 1 to 4/1 moves so that a node line for second order vibrations in the so-called "Sweet Area" is where the tennis racket's reaction to an impulse from a Tennis ball should be reduced.
  • US-A-4,997,186 discloses a racket frame, e.g. for a tennis racket, with a head portion, a handle portion, and an intermediate one Neck portion.
  • the head portion encloses an open area and has a plurality of covering holes for attaching a covering to the head section and over the open area.
  • the heart area is in the shape of a pair of legs and in Essentially V-shaped.
  • In the racket frame are different Cross-sectional dimension ratios provided to the rigidity of the frame predetermine.
  • a first cross-sectional dimension ratio relates to the location of the maximum cross-sectional height of the racket frame in a lower section of the Head area to double reversed along the cross-sectional height of the racket frame to obtain a tapered profile.
  • a second cross-sectional dimension ratio refers to the provision of a sudden transition in an inward direction Area of the head area of the racket frame around a double tapered conical profile along the transverse width of the head area of the racket frame provide.
  • a third cross-sectional dimension ratio relates to the change in Cross-sectional height to cross-sectional width along the heart area of the racket frame a larger heart area height and a larger heart area width near that To provide handle section.
  • US-A-5,310,179 describes a tennis racket construction with an oval Head area frame, which defines a covering surface, the longitudinal size of the Covering area moved in the range of 320 to 390 mm and the transverse length of the same moves in a range of 200 to 240 mm and the Longitudinal compression stiffness of the head area to a value in the range from 30 to 200 kgf / mm is set.
  • the construction disclosed is intended to provide larger headers and Allow cross-string tensions, creating a higher degree of "spin" when shot Balls to be reached.
  • DE-A-199 53 626 describes an improved ball game racket in which a Frame-forming profile at various frame positions corresponding to those there occurring main types of stress has different cross-sectional shapes that the respective types of stress have adapted resistance moments, whereby in Area between four and six o'clock and / or at the heart of the racket at least a bump-like stiffening element can be provided.
  • US-A-6,293,878 describes an apparatus for damping vibrations in one Sports racket with a first and a second elastic damping material that with the racket frame can be connected, and a mass addition that is independent of Racket frame can swing freely and has a bracket arrangement.
  • the present invention is based on the object of further improving Rackets, especially an improved tennis racket and an improved one To provide squash rackets.
  • Other objects of the invention are To provide rackets that overcome the disadvantages of the prior art, which has an improved stiffness behavior or an improved stiffness, the is easy and inexpensive to manufacture and / or the improved playing properties having. This object is achieved with the features of the claims.
  • the invention is based on the basic idea of a ball game racket with a Frame which has a head area for receiving a covering and a handle section has to hold the ball game racket to provide, the frame on Head area in at least two segments each formed several across the frame has clip or rib-like stiffening elements.
  • perpendicular to the frame means approximately perpendicular to one another through the frame or through individual frame areas or infinitesimal Frame elements extending longitudinal axis.
  • the stiffening elements extend in the generally approximately radially to a circle formed by the head region, ie in the Covering plane, and / or perpendicular to the covering plane.
  • the Stiffening elements enclose or clasp the frame at least partially and / or completely.
  • the stiffening elements allow an optimized change of the cross-sectional profile of the racket frame in the head area a change in the vibration or Damping behavior along the frame, so that an optimized vibration or Damping behavior is achieved.
  • the stiffening elements bring about an optimized Mass distribution of the entire club mass and an increase or change in Stiffness of the racket over the course of the racket. In this way it can be done Affect the playing behavior of the racket. The player also subjectively feels one larger sweet spot.
  • the stiffening elements are in at least two, preferably in four segments of the Frame arranged in the head area of the racket, with each segment several Stiffening elements, preferably three to five stiffening elements.
  • the Segments are preferably in the range of about 3:30 a.m. to 5 p.m. and 7 a.m. to 8 a.m. 30 or between 1 a.m. and 2:30 a.m. and 9:30 a.m. to 11 a.m.
  • the stiffening elements preferably have different ones within a segment Rib or bracket widths and / or different distances from each other, whereby the width of the brackets of a segment preferably in the direction of an approximately central transverse axis running through the head area of the racket, i.e. towards 3 o'clock or 9 o'clock, increases.
  • the width of a stiffening element preferably takes against an adjacent stiffening element or the width of a group of Stiffening elements against an adjacent group of stiffening elements to, the width of the individual stiffening elements or the individual Stiffening elements of a group of stiffening elements is constant.
  • a stiffening element preferably has a greater width than a directly adjacent one Stiffening element and / or a smaller width than another directly adjacent Stiffening element. Furthermore, preferably have two neighboring ones Stiffening elements have an approximately the same or the same width, again a larger and / or smaller width than an adjacent group of two Have stiffening elements. Such a change in width preferably takes place along the racket profile evenly or symmetrically with respect to the racket.
  • the individual segments preferably have a width or length of approximately 60 to 90 mm and particularly preferably a width of about 70 to 80 mm along the frame or the club outline.
  • the width of the individual brackets or ribs moves preferably in the range from about 2.5 to 12 mm and particularly preferably in the range from about 4.5 to 9 mm.
  • the brackets also have a circumferential distance from the frame profile of approximately 0.25 to 1 mm, preferably about 0.5 mm.
  • the brackets are preferred over the Frame a thickness of about 0.25 to 1 mm, preferably about 0.5 mm, i.e. H. the surface the brackets rise approximately 0.5 mm from the adjacent surface of the frame from.
  • the racket frame is therefore expanded in the area of a clamp from about 0.25 to 1 mm, preferably from at least about 0.5 mm.
  • the brackets are Stiffening elements formed in one piece with the racket.
  • the parentheses preferably formed by the radius expansion of the racket frame discussed above.
  • the diameter changes are chosen so that they change when the Do not have a negative impact on the frame profile for the respective bracket, as it is too large Changes the risk of breakage due to the deflection of the fibers contained in the frame increases, especially if the brackets or edges and transitions of the brackets are relatively sharp.
  • the edges of the cross-sectional profile of the stiffening elements are therefore preferably rounded.
  • stiffening elements described in defined segments there is increased strength along the club contour of the head region or an increase and change in the stiffness of the racket along the Frame runs in the head area, which in turn leads to an improved Playing behavior of the racket leads. Furthermore, they allow one-piece with the racket trained stiffening elements in a simple and inexpensive manufacture simultaneous optimization of club properties and mass distribution.
  • FIGs 1 and 2 show a conventional ball game racket 2 in front and Side view.
  • the ball game racket 2 has an essentially oval racket head 4, a heart area 6 and a grip section 8.
  • the heart area 6 of the racket 2 is in the Essentially arranged between the head region 4 and the grip section 8 and represents the Connection area between them.
  • the heart area 6 has, for example, as in FIG Figure 1 shown, an opening 12. However, this opening is not mandatory required. However, if the opening 12 is formed, it generally becomes two Side sections 14 and 16 and a connecting section or a bridge 18, the is arranged in the head region 4 of the racket.
  • a second connecting element 20 for example, for reasons of strength.
  • the conventional tennis racket 2 shown in Figures 1 and 2 is made of one Form profile with essentially constant dimensions, apart from the recess 10, trained.
  • the cross-sectional shape or the cross-sectional dimensions of the Profile forming racket frame are from the side area 14 of the heart area 6 around the Head area 4 and to side area 16 are essentially constant and essentially oval or rectangular. Only in the transition area between heart area 6 and The racket 2 has the head area 4 or in the receiving area of the connecting element 18 reinforced cross-sectional dimensions.
  • Club shapes in which the cross-sectional shapes or the cross-sectional dimensions of the the racket-forming profile experience the cross-sectional changes described above can.
  • FIGS Figures 3 and 4 A preferred embodiment of a ball game racket 1 according to the invention is shown in FIGS Figures 3 and 4 shown.
  • the racket 1 according to the invention corresponds in its Basic structure essentially of a conventional ball game racket, like it For example, has been described above with reference to Figures 1 and 2. Accordingly, the racket 1 according to the invention has a head region 3, a heart region 5 and a handle portion (not shown).
  • the heart area 5 of the invention As already described at the beginning, racket is essentially the connection area between the head region 3 and the handle section and has, for example, an opening 7 on.
  • the opening 7 is of two side sections 9 and 11 and one Connection section or a bridge 13 formed in the head region 3 of the racket 1.
  • the heart area 5 of the racket 1 according to the invention can also be in contrast to that in FIG. 3 illustrated embodiment without the opening 7, i.e. the handle section can run closed up to the head area 3. Even the connecting element or the Bridge 13 is optional. As a result, the heart area 5 can only be made from the extensions 9 and 11 of the head portion extending toward the grip portion. Of Furthermore, the heart area 5, as already mentioned at the beginning in relation to the bat 2 of the Description of the prior art, a second connecting element (not shown) exhibit.
  • the racket 1 is based on the idea Basically, at certain points along the frame of the head region 3 of the racket 1, especially in those segments where particularly high loads, e.g. in shape of static or dynamic forces and torsional or bending moments, To provide stiffening elements in the form of ribs or brackets 15, depending on Training and arrangement a targeted influence on the strength or rigidity of the Allow racket 1.
  • the brackets 15 are in the segments 17 at around 3:30 a.m. to 5:00 a.m. and 7:00 a.m. to 8:30 a.m. or in the range from 1:00 a.m. to 2:00 a.m. 30 and 9:30 a.m. to 11:00 a.m.
  • Embodiment are the brackets in the segments 17 at about 2 a.m., 4 a.m., 8 a.m. and 10 a.m.
  • the segments 17 each preferably have a width of approximately 60 to 90 mm and particularly preferably a width of about 70 to 80 mm.
  • the width the segments 17 can also be a length along the circumference of the frame in the head region 3 of the racket 1 are described.
  • the width of the individual brackets is also about 2.5 to 11 mm and particularly preferably 4.5 to 9 mm. In the illustrated preferred Embodiment takes the width of the brackets in the individual segments Towards 3 a.m. or 9 a.m.
  • the distance between the brackets 15 to one another is in a preferred invention Embodiment between 2 and 11 mm, preferably between 4 and 9 mm.
  • the brackets have different i.e. increasing and / or decreasing distances within a segment, preferably also in the direction of the increasing bracket width.
  • width and / or Distance of the individual stiffening elements or the individual stiffening elements or the groups of stiffening elements within one or more segments preferably designed as in the beginning with respect to the stiffening elements described within a segment.
  • the width and / or spacing of the stiffening elements i.e. the individual stiffening elements or a group of stiffening elements adjacent and / or directly adjacent individuals and / or groups of Stiffening elements, the width of and / or the distance between the individual Stiffening elements or the individual stiffening elements of a group remains the same, to or from.
  • FIGS. 4a and 4b Two corresponding preferred embodiments according to the invention are shown in FIGS. 4a and 4b, wherein FIG. 4a shows a detailed view of a segment in plan view and 4b shows a detailed view of a further segment in FIG Side view shows.
  • the illustrations clearly show that the distance 23 the stiffening elements 15 are increasingly enlarged relative to each other in the direction of arrow C.
  • FIGS. 4a and 4b further broaden the width 21 of the individual Brackets within a segment 17 in the direction of arrow C.
  • a preferred embodiment of the invention corresponds to the direction of arrow C of Towards 3 o'clock or 9 o'clock.
  • the brackets are formed by a change in diameter, in particular a Diameter expansion compared to the frame profile of preferably 0.25 to 1.0 mm, in particular about 0.5 mm.
  • Embodiment corresponds to the circumferential profile of the clips to the racket profile the corresponding positions, the brackets opposite the respective Frame profile have a radius extension of about 0.5 mm all around.
  • the brackets run around it Frame profile at least partially.
  • the brackets 15 are at the points recess 10 correspondingly recessed, i.e. they only include the racket profile partially.
  • the Racket profile partially includes brackets 15, these do not have an abrupt or sudden start and no abrupt or sudden end, but go flowing into the respective cross-sectional profile.
  • the clips surround the racket profile complete, i.e. extend endlessly around the frame profile.
  • Figure 4a and Figure 4b show the circumferential radius extension 19 of the brackets or stiffening elements 15 with respect to the respective frame profile.
  • FIG. 4a also shows a detailed view of a racket which has a depression 10, the stiffening elements 15 corresponding to the locations of the recess 10 are spared.
  • the radius extension 19 formed by stiffening elements 15 in the direction of Indentation 10 decreases the radius extension 19 formed by stiffening elements 15 in the direction of Indentation 10, so that the radius extension 19 at the transition of the stiffening element 15 in the recess 10 is less than that over the remaining circumference of the frame profile trained radius extension and in a particularly preferred invention Embodiment is approximately 0.
  • the ball game racket according to the invention shown in FIG. 3 has segments 17 at approximately 2 a.m., 4 a.m., 8 a.m. and 10 a.m. five parentheses 15, the Brackets 15 in each of the segments widen in the direction of 3 or 9 o'clock (see Figures 4a and 4b).
  • the parentheses are each the same value and in another preferred Embodiment according to the invention in each case by a corresponding ratio. Therefore the brackets of an embodiment according to the invention widen for example, half a millimeter each and another one Embodiment according to the invention by 10 to 30% of the width of the previous one Clip.
  • the Parentheses within a range are only a widening, however not every bracket is widened compared to an adjacent bracket.
  • one according to the invention Ball game racket three clips 15 per segment, according to another preferred Embodiment four brackets 15.
  • inventive Ball game rackets which are designed as tennis rackets, five clips 15 per segment 17 on, while ball game rackets according to the invention, which are designed as squash rackets are, preferably have three brackets 15 per segment 17.
  • the brackets are formed in one piece or in one piece with the frame of the racket.
  • brackets also have different materials, e.g. for additional To achieve stiffening effects.
  • the racket is made of fiber composite materials, there is a restriction on the size of the change in diameter or radius in the Area of the brackets, because of their general size and dimension ratios can be relatively sharp and thus the risk of breakage due to the fiber deflection increases.
  • the edges and Transitions of the brackets 15 are preferably rounded, so that dangerous Voltage peaks in the frame can be avoided.
  • the racket 1 according to the invention and the arrangement and design of the clips is further preferably essentially symmetrical with respect to a longitudinal central axis A. formed so that the brackets or bracket segments described above in Area around 7 a.m. or 8 a.m. and 10 a.m. or 11 a.m. between 1 or 2 and 4 or 5 o'clock.
  • the racket 1 and the Arrangement and design of the brackets also preferably with respect to The transverse central axis B is essentially symmetrical, so that the above described brackets or bracket segments in the range of about one or two and ten or 11 o'clock also symmetrically at corresponding points between 4 or 5 and 7 or 8 a.m.
  • the racket 1 according to the invention are all known materials for Tennis, squash, badminton and other rackets suitable for ball sports.
  • the racket 1 according to the invention is made of wood, metal, metal alloys, Plastic, carbon fiber composite material, fiber materials, composite materials and Combinations can be made from it.
  • the invention also provides a method for producing a ball game racket a head area along which the brackets are arranged in individual segments, and in particular a ball game racket corresponding to those previously described preferred embodiments.
  • a preferred method has the following steps: First, this is done Layers of multiple layers of material to form the frame of the racket. Furthermore, the multi-layer structure created in this way is inserted into a mold that adheres to positions corresponding to the positions of the clips or ribs of the racket Has recesses or depressions, and then shaped and solidified. The ball game racket is then removed from the mold. If the brackets should have different material, this can additionally on the corresponding Places are introduced into the mold.
  • the layers of the Frame and the brackets forming carbon fiber composite material, the under elevated temperature and / or increased pressure is formed and solidified.
  • processes according to the invention are carried out in a press.
  • a ball game racket according to the invention guarantees a compared to that in the state of the Technology known rackets improved vibration or damping behavior as well an improved rigidity.
  • a racket according to the invention thus enables Influencing gaming behavior. The player subjectively feels a bigger sweet Spot.
  • Brackets and the described bracket segments can be the specific ones Properties and characteristics of the ball game racket according to the requirements can be set.
  • the optimized mass distribution also enables provision a racket that has excellent rigidity and low overall weight exhibits dynamic behavior.

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  • 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)
  • Golf Clubs (AREA)
  • Laminated Bodies (AREA)
  • Prostheses (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP04004444A 2003-02-27 2004-02-26 Raquette pour jeux de balle Expired - Fee Related EP1452207B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08019688A EP2025371A1 (fr) 2003-02-27 2004-02-26 Raquette pour jeux de balle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10308532 2003-02-27
DE10308532A DE10308532B3 (de) 2003-02-27 2003-02-27 Schläger für Ballspiele

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08019688A Division EP2025371A1 (fr) 2003-02-27 2004-02-26 Raquette pour jeux de balle

Publications (2)

Publication Number Publication Date
EP1452207A1 true EP1452207A1 (fr) 2004-09-01
EP1452207B1 EP1452207B1 (fr) 2009-10-07

Family

ID=32748083

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08019688A Withdrawn EP2025371A1 (fr) 2003-02-27 2004-02-26 Raquette pour jeux de balle
EP04004444A Expired - Fee Related EP1452207B1 (fr) 2003-02-27 2004-02-26 Raquette pour jeux de balle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08019688A Withdrawn EP2025371A1 (fr) 2003-02-27 2004-02-26 Raquette pour jeux de balle

Country Status (6)

Country Link
US (1) US7070525B2 (fr)
EP (2) EP2025371A1 (fr)
CN (2) CN100428969C (fr)
AT (1) ATE444783T1 (fr)
DE (2) DE10308532B3 (fr)
TW (1) TWI330538B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308532B3 (de) * 2003-02-27 2004-10-21 Head Technology Ges.M.B.H. Schläger für Ballspiele
DE502007001208D1 (de) 2006-02-02 2009-09-17 Head Technology Gmbh Griffband und Griff für Ballspielschläger
WO2007088070A2 (fr) 2006-02-02 2007-08-09 Head Technology Gmbh Raquette
DE102006004849B4 (de) * 2006-02-02 2008-01-03 Head Technology Gmbh Ballspielschläger mit Schwingungseinrichtung
DE102006004863B4 (de) * 2006-02-02 2007-12-27 Head Technology Gmbh Schläger für Ballspiele
JP3152862U (ja) * 2006-04-28 2009-08-20 張家源 バドミントン用ラケット
CN102133472A (zh) * 2011-03-01 2011-07-27 常延秋 柔力荡球
JP2017217067A (ja) * 2016-06-03 2017-12-14 ヨネックス株式会社 ラケット、及び、グロメット
CN107187071A (zh) * 2017-05-11 2017-09-22 厦门新凯复材科技有限公司 一种实心异形球拍的生产工艺
AU2020315838A1 (en) * 2019-07-22 2022-03-17 Vt Advantec, Llc Dampeners for sporting equipment and sporting equipment including the same
SE546079C2 (en) * 2021-12-29 2024-05-14 Evosport Ab Padel racket with curved ribs in the frame, a mould for producing said padel racket and a method for producing said padel racket
WO2023128848A1 (fr) * 2021-12-29 2023-07-06 Evosport Ab Raquette de padel

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EP1149607A2 (fr) 2000-04-18 2001-10-31 EF Composite Technologies LP Raquette de sport avec cadre à surface interne ondulée
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TWI330538B (en) 2010-09-21
ATE444783T1 (de) 2009-10-15
DE10308532B3 (de) 2004-10-21
US7070525B2 (en) 2006-07-04
US20040229719A1 (en) 2004-11-18
EP1452207B1 (fr) 2009-10-07
DE502004010183D1 (de) 2009-11-19
TW200422074A (en) 2004-11-01
EP2025371A1 (fr) 2009-02-18
CN101428174A (zh) 2009-05-13
CN100428969C (zh) 2008-10-29
CN1533815A (zh) 2004-10-06

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