EP0171500A2 - Schlägerramen mit verringernder Dicke - Google Patents

Schlägerramen mit verringernder Dicke Download PDF

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Publication number
EP0171500A2
EP0171500A2 EP85103210A EP85103210A EP0171500A2 EP 0171500 A2 EP0171500 A2 EP 0171500A2 EP 85103210 A EP85103210 A EP 85103210A EP 85103210 A EP85103210 A EP 85103210A EP 0171500 A2 EP0171500 A2 EP 0171500A2
Authority
EP
European Patent Office
Prior art keywords
head
racquet
frame
handle
thickness
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Withdrawn
Application number
EP85103210A
Other languages
English (en)
French (fr)
Other versions
EP0171500A3 (en
Inventor
Malcolm Charles Hazell
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.)
Consolidated Sporting Goods Pty Ltd
Original Assignee
Consolidated Sporting Goods Pty Ltd
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 Consolidated Sporting Goods Pty Ltd filed Critical Consolidated Sporting Goods Pty Ltd
Publication of EP0171500A2 publication Critical patent/EP0171500A2/de
Publication of EP0171500A3 publication Critical patent/EP0171500A3/en
Withdrawn legal-status Critical Current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
    • 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
    • A63B49/10—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
    • 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
    • A63B49/022—String guides on frames, e.g. grommets

Definitions

  • the present invention relates to racquets, adapted for playing sports such as tennis, squash and badminton, having a stringed head and a handle, and to frames for such racquets.
  • the present invention consists in a racquet having a stringed head and a handle characterised in that the thickness of the racquet tapers downwardly over at least a portion of the length of the head in a direction away from the handle.
  • a further embodiment of the present invention consists in a frame for a racquet, having a stringable head and a handle, the frame being characterised in that the thickness of the head of the frame tapers downwardly over at least a portion of the length of the head in a direction away from the handle.
  • the thickness of the head of the racquet is the dimension measured between the front and back faces of the frame of the racquet at any given point.
  • the advantage of the present construction lies in the fact that it allows the strength of the racquet head to be increased towards the handle thereof without detracting from the "feel" of the racquet. This "feel” is believed to rely in part on the flexibility of the portion of the head distal to the handle.
  • the tapered section of the racquet head preferably commences at least at the widest part of the head and continues away from the handle to or adjacent the part of the head distal to the handle. If desired a greater portion of the head may taper and in the extreme case the head tapers over its whole length. It is also within the scope of this invention that at least a portion of the handle additionally tapers in thickness.
  • the present invention is particularly applicble to racquets formed in whole or at least in the head portion of carbon fibre reinforced plastics material which are commonly referred to as "graphite". It could however also be applied with advantage to racquets of the traditional wooden construction or to metal racquets.
  • the thickness of the head of the racquet be reduced by from 5 to 20% of its maximum thickness between its thickest and thinnest points, more preferably the reduction is of the order of 9 to 15%.
  • the dimension between the radially inner side of the head and the radially outer side of the head may also change along the length of the head of the racquet.
  • the frame width will decrease gradually, i.e. taper downwardly, from at least at the widest part of the head in a direction away from the handle of the frame, to the part of the head distal to the handle.
  • the racquet frame 10 comprises a handle 11 and a head 12.
  • the head 12 is formed with a plurality of holes 13 to receive strings.
  • the racquet 10 is formed of carbon fibre reinforced plastics material and has a hollow interior.
  • the racquet frame 10 is of a constant thickness, i.e. the distance between the faces 14 and 15 of the racquet frame 10, of 14 mm along the full length of the handle and up to the shoulders of the racquet closely adjacent the connection between the handle 11 and the head 12.
  • the thickness of the racquet commences to taper downwardly to the end of the head distal to the handle where the racquet has a thickness of only 12.0 mm.
  • the racquet frame 10 is of substantially ovate cross-sectional shape along its length except in the hand grip portion in which it is of square section and adapted to receive a separately formed hand grip (not shown) and adjacent the end of the head of the racquet distal to the handle. In this latter region the racquet is of substantially C-chaped cross-section such that the strings will be recessed below the outer extremity of the racquet and thus protected from damage should the head of the racquet be inadvertently struck against a wall of the court.

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)
  • Stringed Musical Instruments (AREA)
EP85103210A 1984-07-31 1985-03-20 Racquet frame with tapered thickness Withdrawn EP0171500A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG630284 1984-07-31
AU6302/84 1984-07-31

Publications (2)

Publication Number Publication Date
EP0171500A2 true EP0171500A2 (de) 1986-02-19
EP0171500A3 EP0171500A3 (en) 1987-09-30

Family

ID=3770697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103210A Withdrawn EP0171500A3 (en) 1984-07-31 1985-03-20 Racquet frame with tapered thickness

Country Status (2)

Country Link
EP (1) EP0171500A3 (de)
ZA (1) ZA852092B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834383A (en) * 1986-09-11 1989-05-30 Skis Rossignol S. A. Tennis racket with equal string lengths
GB2212403A (en) * 1987-11-17 1989-07-26 Yonex Kk Tennis racket
FR2630336A1 (fr) * 1988-04-26 1989-10-27 Rossignol Sa Raquette de tennis
US5062634A (en) * 1990-08-31 1991-11-05 Wilson Sporting Goods Co. Squash racket
US5183265A (en) * 1989-09-11 1993-02-02 Head Sportgerate Gesellschaft M.B.H. & Co. Ohg Racquets, in particular tennis racquets
US5249798A (en) * 1991-07-09 1993-10-05 Sumitomo Rubber Industries, Ltd. Tennis racket frame
US5540434A (en) * 1990-08-21 1996-07-30 Wilson Sporting Goods Co. Tennis racket
CN104027956A (zh) * 2013-03-06 2014-09-10 尤尼克斯株式会社 球拍

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191112146A (en) * 1911-05-19 1911-08-17 Alfred Adrien Tunmer Improved Racquet for Tennis or the like.
FR2140890A5 (de) * 1971-06-11 1973-01-19 Gonzalez Garcia Miguel
FR2243001A2 (en) * 1973-09-12 1975-04-04 Martel Rene Glass fibre tennis racket frame - has wood stiffening insert within central area at inner end of handle
GB2030455A (en) * 1978-10-03 1980-04-10 Kun Nan Lo Sports rackets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191112146A (en) * 1911-05-19 1911-08-17 Alfred Adrien Tunmer Improved Racquet for Tennis or the like.
FR2140890A5 (de) * 1971-06-11 1973-01-19 Gonzalez Garcia Miguel
FR2243001A2 (en) * 1973-09-12 1975-04-04 Martel Rene Glass fibre tennis racket frame - has wood stiffening insert within central area at inner end of handle
GB2030455A (en) * 1978-10-03 1980-04-10 Kun Nan Lo Sports rackets

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834383A (en) * 1986-09-11 1989-05-30 Skis Rossignol S. A. Tennis racket with equal string lengths
GB2212403A (en) * 1987-11-17 1989-07-26 Yonex Kk Tennis racket
FR2630336A1 (fr) * 1988-04-26 1989-10-27 Rossignol Sa Raquette de tennis
EP0340127A1 (de) * 1988-04-26 1989-11-02 Skis Rossignol S.A. Tennisschläger
US5183265A (en) * 1989-09-11 1993-02-02 Head Sportgerate Gesellschaft M.B.H. & Co. Ohg Racquets, in particular tennis racquets
US5540434A (en) * 1990-08-21 1996-07-30 Wilson Sporting Goods Co. Tennis racket
US5062634A (en) * 1990-08-31 1991-11-05 Wilson Sporting Goods Co. Squash racket
US5249798A (en) * 1991-07-09 1993-10-05 Sumitomo Rubber Industries, Ltd. Tennis racket frame
CN104027956A (zh) * 2013-03-06 2014-09-10 尤尼克斯株式会社 球拍

Also Published As

Publication number Publication date
ZA852092B (en) 1985-11-27
EP0171500A3 (en) 1987-09-30

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Effective date: 19871001

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Inventor name: HAZELL, MALCOLM CHARLES