EP1557203A2 - Raquette pour jeux de balle et méthode de fabrication - Google Patents

Raquette pour jeux de balle et méthode de fabrication Download PDF

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Publication number
EP1557203A2
EP1557203A2 EP04030147A EP04030147A EP1557203A2 EP 1557203 A2 EP1557203 A2 EP 1557203A2 EP 04030147 A EP04030147 A EP 04030147A EP 04030147 A EP04030147 A EP 04030147A EP 1557203 A2 EP1557203 A2 EP 1557203A2
Authority
EP
European Patent Office
Prior art keywords
racket
opening
frame profile
frame
clock
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
EP04030147A
Other languages
German (de)
English (en)
Other versions
EP1557203B1 (fr
EP1557203A3 (fr
Inventor
Johannes Mauser
Klaus Rambach
Manfred Emberger
Johan Kotze
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
Publication of EP1557203A2 publication Critical patent/EP1557203A2/fr
Publication of EP1557203A3 publication Critical patent/EP1557203A3/fr
Application granted granted Critical
Publication of EP1557203B1 publication Critical patent/EP1557203B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A63B49/022—String guides on frames, e.g. grommets
    • 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
    • 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
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/10—Reinforcements for stringing
    • 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
    • A63B60/50—Details or accessories of golf clubs, bats, rackets or the like with through-holes
    • 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
    • A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits

Definitions

  • the present invention relates to a racket for ball games, in particular a tennis, Squash, badminton, racquetball or paddle tennis rackets with excellent Handling characteristics, as well as a manufacturing method for such a racket.
  • Such racquets typically include a frame having a club head and forms a handle portion connected thereto.
  • the frame is made of a frame profile or hollow profile often formed of a carbon fiber reinforced plastic material in a molding press will be produced.
  • the club head of the racket defines a clothing plane, in the clothing of the racket is arranged.
  • the strings of the Covering are on the frame in the string plane lying through holes for Implementation of stringed strings provided.
  • US-A-3,917,267 discloses a tennis racket consisting of a frame with an im essential square club head and a protruding handle portion is formed.
  • the racket is covered in such a way that each string length, the club head spanned, is guided perpendicular to the side elements of the square club head, to provide a ball striking surface in which the strings each have the same length and have the same voltage.
  • Wind resistance can be found in the corners of the club head openings in the frame be provided.
  • DE-A-39 10 890 describes a racket with a frame body having a head, a neck and a shaft.
  • a space between two each other opposite thighs of the frame main part is from a neck bridge spans, which encloses a clothing surface together with the head.
  • the Halsmaschine has an upper bridge part and a lower bridge part, which are located in the extend substantially transverse to the longitudinal axis of the racket and a distance in Have longitudinal direction of the racket from each other, so that between them formed a slot is.
  • Between the two bridge parts is a damping body arranged vibration absorbing material.
  • FR-A-821 471 and US-A-3,647,211 disclose a racquet with a club head and an associated handle portion, are provided in the recesses.
  • the present invention has for its object to provide a racquet of the above mentioned type with respect to its handling characteristics, in particular his Ball guide, while allowing a lightweight construction is possible.
  • the object is with a racket with the features of independent claim 1 solved.
  • the independent method claim 16 concerns a manufacturing method for such a racket.
  • the dependent on it Claims relate to advantageous embodiments of the method according to the invention.
  • the racquet for ball games according to the invention has one of a frame or Hollow profile formed frame, a club head and a preferably over Having a heart region connected handle portion.
  • the clubhead defines one Stringing plane.
  • the frame profile has at least one through the frame profile extending therethrough, which is substantially perpendicular to the clothing plane the bat runs.
  • the opening extends in the frame profile of Stick according to the invention substantially perpendicular to the frame profile usually provided through holes for the performance of stringed strings.
  • the opening may be arranged to be in the region between two adjacent ones Through holes for the strings is arranged.
  • a cover of the opening by the string and / or an eyelet (“Grommet”) can be fixed for the string.
  • the head shape of the racket is largely arbitrary and can, for example, oval, egg-shaped, teardrop-shaped, rectangular with rounded corners.
  • To define the respective Positions of the openings along the circumference of the club head will usually be Clock face of a clock used, with the 12 o'clock position at the extreme or free end of the club head is arranged (see Fig. 1a).
  • the 3 o'clock or 9 o'clock position is located accordingly approximately in the middle of the total length of the club head.
  • the openings are in pairs substantially symmetrical to the longitudinal axis of the racquet, i. there may be two, four, six or more openings be provided symmetrically to the longitudinal axis of the racket.
  • the at least one opening is preferably in the range between 2 o'clock and 4 o'clock and / or between 8 o'clock and 10 o'clock Clock on the clubhead. Particularly preferred is the paired arrangement of openings in this area. More preferably, at least one pair of apertures is at about 3 o'clock or 9 o'clock on the club head.
  • multiple openings could be symmetrical at the 3 o'clock or 9 o'clock position or, starting from 3 o'clock or 9 o'clock, respectively Handle section or starting from 3 o'clock or 9 o'clock to the free end of the Club head to be arranged.
  • the opening provided perpendicular to the clothing plane extends completely through the frame profile, i. in the case of a hollow profile, a first hole is on a first club side and aligned to a second hole on the opposite second club side provided, which together form the opening.
  • the opening is preferably after the forming of the racket in the molding press However, it can also be formed during the frame Forming method, for example, prepared by inserting a core into the mold become.
  • the subsequent formation of the mold is preferably carried out by drilling, milling or saws.
  • the cross section of the opening is usually circular cylindrical in the case of drilling, however, it can also have any other shape.
  • a circular opening has preferably a diameter in the range between about 2 mm and 8 mm, stronger preferably between 3 mm and 6 mm, on.
  • When trained by milling or sawing Opening will usually be the two opposite holes in the frame profile generated independently of each other, each of the holes in the direction parallel to Seating plane preferably formed substantially arcuate or trough-shaped is. However, any other shape for the holes is possible.
  • the length of each of the holes along the frame is preferably in the range between 1 mm and 10 mm, stronger preferably between about 3 mm and 7 mm.
  • the depth of each hole corresponds at least the wall thickness of the frame profile.
  • the width of the holes i. their dimension in the direction of the string through holes or perpendicular to the direction of the frame at the point in question, is preferably in Range between 3 mm and 7 mm.
  • the dimensions of the hole, especially its Width and depth, should be chosen so that the hole is not up to one in the frame provided groove for receiving a headband ranges.
  • the opening With a substantially tubular insert, so that the frame profile is closed inwards.
  • This tubular insert is made usually made of an elastic material (e.g., rubber), so that by providing the openings achieved advantageous effects are influenced as little as possible. It also possible, the holes forming the opening each with a separate lid from a cover elastic material, whereby the same effect is achieved.
  • the frame profile in the area around the at least one to reinforce opening by the provision of reinforcing layers.
  • Reinforcement layers of carbon fiber, glass or aramid fabric and / or a unidirectional prepreg suitable at an angle of ⁇ 45 ° to each Longitudinal extent of the frame profile (i.e., helical in the wall of the Frame profiles) are arranged.
  • the effect of the openings extending perpendicular to the clothing plane lies in particular in that during a stroke of the bat at the moment of ball striking a relative stiff characteristic, giving the ball excellent acceleration While the ball has left the racket, the racket may be one sooner soft or damped characteristic has.
  • the effect of the invention can still be reinforced by the frame profile in the region of the opening preferably on both sides with a trough-shaped recess whose depth extension parallel to the opening runs, is provided.
  • a further advantage of the racket according to the invention is that by the ball impact In the racket caused vibrations are much less directed to the handle be as in known rackets, which in particular to an improved ball control while playing and leads to improved cushioning of the racket. Thereby For example, phenomena such as e.g. "Tennis elbow", minimized or prevented.
  • the schematic representation of the racket 2 according to the invention shown in FIG. 1a includes a dial sheet corresponding to a normal clock for better understanding, the 12 o'clock position (XII) being at the extreme, free end of the racket.
  • the racket comprises a frame 4, a club head 6 and forms a preferably connected via a heart region 8 handle portion 10.
  • the frame 4 is formed from a frame or hollow profile (see Figures 2d and 3a-3c).
  • the club head defines a clothing plane of the racket. To accommodate the Covering the frame 4 in the region of the club head 6 more substantially through holes (not shown) in the clothing plane for performing Stringed strings 7, of which in the cross section of FIG. 3a is a schematic to see is.
  • Fig. 1a On the frame profile is according to the embodiment shown in Fig. 1a at 3 o'clock and 9, respectively Watch each one extending through the frame profile opening 12th provided, which are substantially perpendicular to the clothing plane or to the Through holes for the stringed strings runs.
  • This opening is, as in Fig. 2a shown in more detail, in the form of a substantially circular cylindrical through hole educated.
  • the bore extends through the two opposite walls of the Frame profile and thereby forms the opening extending through the frame profile 12.
  • the circular opening 12 preferably has a diameter D in Range between about 2 mm and 8 mm, more preferably between 3 mm and 6 mm.
  • an insert 14 the Frame profile to the interior of the opening 12 closes.
  • the insert 14 is preferably tubular, i. with a passage opening 16, formed. He can, however, also as "Cover" or formed as a solid profile.
  • the insert 14 is typically made from a made of soft or elastic material so that it has the properties of the racket in this area is not significantly affected. Preference is given to a transparent Plastic (e.g., rubber).
  • the tubular insert 14 preferably has one low wall thickness of e.g. about 0.5 to 1.5 mm, preferably about 0.5 to 1 mm, on.
  • Fig. 3b is a cross section of the racket according to the invention without an insert.
  • the racket according to the invention in the region of the opening 12th have a trough-shaped recess 18.
  • the frame to the two opposite sides of the frame 4 each have such a recess 18, i. the frame height in this area is twice the depth of each one trough-shaped recess 18 is reduced.
  • the invention Bat four of such trough-shaped indentations 18, i. two each opposite per opening 12.
  • the opening 12 and, if applicable, the associated (s) Dents (s) 18 are preferably in the range between 2 o'clock and 4 o'clock or between 8 o'clock and 10 o'clock on the racket.
  • Opening 12 at about 3 o'clock and 9 o'clock on the frame 4 provided.
  • it is preferably, at 3 o'clock or 9 o'clock respectively at the front and the back of the racket respectively to provide a trough-shaped recess 18.
  • the trough-shaped indentation is preferred in molding the racket frame in formed the frame profile, for example, by providing a corresponding Bulge in the form. Furthermore, it may be preferable, in the region of the opening 12 - regardless of whether a recess 18 is present or not - one or more Reinforcement layers in the frame profile forming material to provide.
  • This can For example, carbon fiber material, glass or aramid fabric and / or a unidirectional Prepreg at an angle of ⁇ 45 ° to the frame's longitudinal extension of the frame profile (i.e., helically in the wall of the frame profile) into the racket frame be incorporated forming frame profile. This is preferably done by Overlay the different layers of frame material and reinforcement material and then rolling the superimposed materials into a "tube" that then inserted into the molding press and under the action of temperature and pressure pressed to the frame.
  • the opening 12 in the frame 4 of the racket 2 of the invention instead of a through hole through the frame profile at the front and back the frame each provide individual holes 12a.
  • Figs. 2b and 2c are each only to recognize such a hole 12a, while one on the opposite frame side provided corresponding hole is not shown. Two opposite holes 12a together form an opening extending through the frame profile.
  • the holes 12a are parallel to the viewing direction Stringing a substantially arcuate or trough-shaped shape. This can be realized for example by milling or sawing.
  • the length L of the holes 12a along the frame preferably in the range between 1 mm and 10 mm, more preferably between 3 mm and 7 mm.
  • the greatest depth T of a hole 12a corresponds at least to the wall thickness of the frame profile, so that the Frame profile is at least partially completely removed to an opening in the Interior of the frame profile expose.
  • the maximum depth of the hole 12a is preferably the depth to a groove 20 ( Figure 3c) for receiving the headband of the racket practical.
  • the width B of the hole 12a is preferably in the range between 3 mm and 7 mm.
  • the opening with a (preferably substantially tubular) use or cover whose shape to the shape of the hole or the trough can be adapted so that neither dirt nor moisture in the interior of the Frame profile can get.
  • Fig. 2d and 3c is another embodiment of the racket according to the invention which is similar to the embodiments shown in FIGS. 2 b and 2 c.
  • the opposite holes 12a which together form the opening, according to this Embodiment one when viewed parallel to the clothing plane substantially rectangular cross section.
  • the racket according to the invention is particularly improved in terms of its Ball guide advantageous.
  • vibrations that occur when hitting the Balles arise, less strongly derived from the handle than known racquets.
  • the acceleration capacity with the inventive Racket is transferable to the ball, improved.
  • the advantageous properties of The stick according to the invention is probably due to the fact that the outermost Wall of the frame profile, i. the furthest away from the clothing plane lying part of the wall of the frame profile, through the opening in the area between 2 Clock and 4 o'clock or between 8 o'clock and 10 o'clock is weakened, so that here the Bending resistance of the frame profile is considerably lower than in the areas without opening.
  • the racket can be particularly flexible be, whereby the particularly advantageous effects are achieved.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP04030147A 2004-01-23 2004-12-20 Raquette pour jeux de balle et méthode de fabrication Not-in-force EP1557203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003528A DE102004003528B3 (de) 2004-01-23 2004-01-23 Schläger für Ballspiele und Herstellungsverfahren
DE102004003528 2004-01-23

Publications (3)

Publication Number Publication Date
EP1557203A2 true EP1557203A2 (fr) 2005-07-27
EP1557203A3 EP1557203A3 (fr) 2005-10-05
EP1557203B1 EP1557203B1 (fr) 2009-11-11

Family

ID=34625783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030147A Not-in-force EP1557203B1 (fr) 2004-01-23 2004-12-20 Raquette pour jeux de balle et méthode de fabrication

Country Status (6)

Country Link
US (1) US7044869B2 (fr)
EP (1) EP1557203B1 (fr)
CN (1) CN100518864C (fr)
AT (1) ATE448007T1 (fr)
DE (2) DE102004003528B3 (fr)
TW (1) TWI343268B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004003528B3 (de) * 2004-01-23 2005-07-21 Head Technology Gmbh Schläger für Ballspiele und Herstellungsverfahren
DE102004003526B3 (de) * 2004-01-23 2005-09-22 Head Technology Gmbh Schläger für Ballspiele und Herstellungsverfahren
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
US7967706B2 (en) 2006-02-02 2011-06-28 Head Technology Gmbh Racket for ball games
US20080254921A1 (en) * 2007-04-12 2008-10-16 Chin-Dong Pai Racket frame
US8342989B2 (en) 2008-11-14 2013-01-01 Head Technology Gmbh Sporting goods with graphene material
US20200222772A1 (en) * 2017-12-14 2020-07-16 Bauer Hockey, Llc Hockey Stick and Blade for Hockey Stick
US10653924B2 (en) 2018-03-12 2020-05-19 Wilson Sporting Goods Co. Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR821471A (fr) 1937-05-05 1937-12-06 Ind De La Raquette L Raquette de tennis ou autre, perfectionnée
US3647211A (en) 1970-06-08 1972-03-07 James H Doessel Plastic tennis racket having predetermined cross sections effecting flexibility
US5188360A (en) 1990-08-29 1993-02-23 Dennis Chen Structure of racket with improved weight distribution adjusting mechanism

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1451836A (en) * 1921-08-02 1923-04-17 Dayton Steel Racquet Company Racket for tennis and similar games
US3917267A (en) * 1973-03-23 1975-11-04 Charles A Mcgrath Tennis racket
US4353551A (en) * 1979-07-26 1982-10-12 Battelle Development Corporation Tennis racket with frame mounted oscillatable weights
US5014987A (en) * 1982-09-27 1991-05-14 Soong Tsai C Frame for sports racket
US4828259A (en) * 1988-04-06 1989-05-09 Prince Manufacturing, Inc. Tennis racquet with double throat bridge
US5152526A (en) * 1990-04-03 1992-10-06 Soong Tsai C Frame for sports rackets
CN1073370A (zh) * 1991-12-21 1993-06-23 尤景三 微震荡型纤维增强塑胶球拍框架
DE69517619T2 (de) * 1994-04-11 2001-02-15 Wavex Corp Schläger mit unebenem Rahmen
US6447412B1 (en) * 2000-04-18 2002-09-10 Ef Composite Technologies, L.P. Sports racket with undulations in frame interior surface
JP3416634B2 (ja) * 2000-09-21 2003-06-16 住友ゴム工業株式会社 ダイナミックダンパー
CN2519682Y (zh) * 2001-09-25 2002-11-06 厦门侨兴工业有限公司 球拍的断面结构
US6761651B2 (en) * 2002-11-22 2004-07-13 Chin-Dong Pai Aluminum tennis racket
DE102004003528B3 (de) * 2004-01-23 2005-07-21 Head Technology Gmbh Schläger für Ballspiele und Herstellungsverfahren
DE102004003526B3 (de) * 2004-01-23 2005-09-22 Head Technology Gmbh Schläger für Ballspiele und Herstellungsverfahren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR821471A (fr) 1937-05-05 1937-12-06 Ind De La Raquette L Raquette de tennis ou autre, perfectionnée
US3647211A (en) 1970-06-08 1972-03-07 James H Doessel Plastic tennis racket having predetermined cross sections effecting flexibility
US5188360A (en) 1990-08-29 1993-02-23 Dennis Chen Structure of racket with improved weight distribution adjusting mechanism

Also Published As

Publication number Publication date
US20050164813A1 (en) 2005-07-28
TW200524658A (en) 2005-08-01
CN100518864C (zh) 2009-07-29
TWI343268B (en) 2011-06-11
EP1557203B1 (fr) 2009-11-11
US7044869B2 (en) 2006-05-16
DE502004010345D1 (de) 2009-12-24
EP1557203A3 (fr) 2005-10-05
CN1666796A (zh) 2005-09-14
DE102004003528B3 (de) 2005-07-21
ATE448007T1 (de) 2009-11-15

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