EP0186246A1 - Schläger - Google Patents

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Publication number
EP0186246A1
EP0186246A1 EP85202072A EP85202072A EP0186246A1 EP 0186246 A1 EP0186246 A1 EP 0186246A1 EP 85202072 A EP85202072 A EP 85202072A EP 85202072 A EP85202072 A EP 85202072A EP 0186246 A1 EP0186246 A1 EP 0186246A1
Authority
EP
European Patent Office
Prior art keywords
racket
equal
tennis
squash
number strings
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Withdrawn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
EP85202072A
Other languages
English (en)
French (fr)
Inventor
Anne Phillips-Moore
Barry Phillips-Moore
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.)
MOORE ANNE PHILLIPS
MOORE BARRY PHILLIPS
Original Assignee
MOORE ANNE PHILLIPS
MOORE BARRY PHILLIPS
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 MOORE ANNE PHILLIPS, MOORE BARRY PHILLIPS filed Critical MOORE ANNE PHILLIPS
Publication of EP0186246A1 publication Critical patent/EP0186246A1/de
Withdrawn legal-status Critical Current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
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings

Definitions

  • This invention relates to a racket, particularly a tennis or squash racket.
  • the invention has more particularly for object to provide a tennis or squash racket which notably insures a better control of the ball. It is meant thereby that the ball contacts for a longer time the strings and enters more deeply the string network, in such a way that it is possible for the player to impart more spin to the ball.
  • the mean mesh surface area of the string network is at least equal to 170 mm 2 for a tennis racket and at least to 100 mm 2 for a squash racket, whereby with network mesh the geometrical figure is meant which lies completely enclosed between two pairs of strings crossing one another, such as they are present in a polygon defined by four straight lines which run two by two in parallel relationship and the lengths of which are equal to half the length of the longest axis in the one direction, and to half the length of the longest axis along a direction which crosses said first direction.
  • the definition of said axes will be further explained hereinafter.
  • the string diameter is at least 1.60 mm, while for a squash racket said string diameter is at least 1.50 mm.
  • the tennis or squash rackets according to said figures are of conventional type as far as the frame structure thereof is concerned.
  • the frame may be made of any suitable material or materials, such as metal, wood or synthetic material, and combinations thereof.
  • the size is not part either of the invention principle.
  • the rackets according to the invention may be distinguished in many ways.
  • a remarkable feature of the racket according to the invention may be found in the mean mesh surface area of the string network.
  • said mesh surface area is at least equal to 170 mm 2 and for a squash racket at least equal to 100 mm 2 .
  • the mesh surface area may be computed as follows:
  • the lengths of said axes are shown in L1 and L2 in figure 1, and in L3 and L4 in figure 2.
  • the half spacings are drawn (Ll/2 and L2/2 in figure 1, and L3/2 and L4/2 in figure 2).
  • a polygon may now be drawn by ruling lines in parallel relationship with said axes through points A, B, C, D (figure 1), and A', B', C', D' (figure 2).
  • said polygons are rectangles.
  • Said polygon may also have the shape of a diamond or other geometrical figure. The mean mesh surface area within said polygon may then be determined.
  • mean mesh surface areas reach as already stated hereinabove, at least 170mm 2 for a tennis racket, and at least 100 mm 2 for a squash racket.
  • mean mesh surface area means the sum of the surface area of all those meshes which lie completely inside the just-defined polygon, divided by the number meshes in said polygon.
  • the string diameter for a tennis or squash racket is also a specific feature of the invention.
  • said diameter is at least 1.60 mm, while for a squash racket said diameter is at least 1.50 mm.
  • the strings may thereby be made from synthetic or natural material.
  • the rackets according to the invention may further be defined by the number strings thereof.
  • the number strings for a "midsize" tennis racket as well as for a squash racket is at the most equal to 14. Along the other direction, said number is at the most 15.
  • the number strings is preferably equal to 14 when considering the strings which run in parallel relationship with the longest string spacing, and to 16 when considering the strings along the other direction.
  • the wording "oversized" means a racket which fulfills the following requirements:
  • the rackets according to the invention have a string network with a markedly enlarged mesh surface area. This results in the ball entering deeper the network surface (between the strings); the ball thus remains retained for a fraction of a second longer, whereby the player also has a fraction more time to control the ball.
  • the use of strings with a larger diameter also secures a more shaped striking surface, which further favourably influences the ball control.
  • the strain on the strings may be increased up to 60 kg. Due to combining the trampoline action (due to- the ball entering deeper the string network) with the higher strain, a racket is obtained with a very high efficiency. This means insuring a maximum energy transfer to the ball.
  • the number holes in the frame of the rackets according to the invention is also lowered, which enhances the frame strength or resistance.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Prostheses (AREA)
EP85202072A 1984-12-20 1985-12-13 Schläger Withdrawn EP0186246A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG864684 1984-12-20
AU8646/84 1984-12-20

Publications (1)

Publication Number Publication Date
EP0186246A1 true EP0186246A1 (de) 1986-07-02

Family

ID=3770885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85202072A Withdrawn EP0186246A1 (de) 1984-12-20 1985-12-13 Schläger

Country Status (3)

Country Link
EP (1) EP0186246A1 (de)
JP (1) JPS61162966A (de)
BR (1) BR8506405A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20120038A1 (it) * 2012-03-14 2013-09-15 Prince Sports Inc Una racchetta sportiva migliorata

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2726230B2 (ja) * 1993-12-15 1998-03-11 住友ゴム工業株式会社 ラケット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299048A1 (fr) * 1974-10-21 1976-08-27 Prince Mfg Inc Raquette de tennis
US4013289A (en) * 1975-06-30 1977-03-22 Bernard Kaminstein Tennis racket
FR2409058A2 (fr) * 1977-11-21 1979-06-15 Lacoste Francois Raquette de tennis
DE3015960A1 (de) * 1980-04-25 1981-11-05 Kuebler & Co, 7700 Singen Tennisschlaeger
FR2495477A1 (fr) * 1980-12-04 1982-06-11 Ireb Raquette de tennis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299048A1 (fr) * 1974-10-21 1976-08-27 Prince Mfg Inc Raquette de tennis
US4013289A (en) * 1975-06-30 1977-03-22 Bernard Kaminstein Tennis racket
FR2409058A2 (fr) * 1977-11-21 1979-06-15 Lacoste Francois Raquette de tennis
DE3015960A1 (de) * 1980-04-25 1981-11-05 Kuebler & Co, 7700 Singen Tennisschlaeger
FR2495477A1 (fr) * 1980-12-04 1982-06-11 Ireb Raquette de tennis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20120038A1 (it) * 2012-03-14 2013-09-15 Prince Sports Inc Una racchetta sportiva migliorata
WO2013136266A1 (en) * 2012-03-14 2013-09-19 Prince Sports, Llc. Sports racquet having an enlarged mesh size

Also Published As

Publication number Publication date
BR8506405A (pt) 1986-09-02
JPS61162966A (ja) 1986-07-23

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Legal Events

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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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Effective date: 19870105