EP0133165A2 - Racquet with string clamping means - Google Patents

Racquet with string clamping means Download PDF

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Publication number
EP0133165A2
EP0133165A2 EP84810369A EP84810369A EP0133165A2 EP 0133165 A2 EP0133165 A2 EP 0133165A2 EP 84810369 A EP84810369 A EP 84810369A EP 84810369 A EP84810369 A EP 84810369A EP 0133165 A2 EP0133165 A2 EP 0133165A2
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EP
European Patent Office
Prior art keywords
frame
racket
strings
string
rope
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
EP84810369A
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German (de)
French (fr)
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EP0133165A3 (en
EP0133165B1 (en
Inventor
Ivan Szedressy
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Individual
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Individual
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Publication date
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Priority to AT84810369T priority Critical patent/ATE52039T1/en
Publication of EP0133165A2 publication Critical patent/EP0133165A2/en
Publication of EP0133165A3 publication Critical patent/EP0133165A3/en
Application granted granted Critical
Publication of EP0133165B1 publication Critical patent/EP0133165B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A63B49/025—Means on frames for clamping string ends
    • 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
    • A63B51/01—Pre-woven string-sets ready for insertion into a frame

Definitions

  • the invention relates to a racket stringing system, for example tennis rackets, as well as to its use for stringing rackets by means of a prefabricated interlacing and a reusable fastening system.
  • the rackets have so far been strung using one or two strings, one forming the horizontal string, the other the vertical string.
  • Each string must be passed through a number of holes in the racket frame.
  • the rope must be stretched and provisionally fixed, to allow passage in the opposite direction through the next hole.
  • the device according to the invention has the advantage of being able to be used on any type of racket having for each string of individual holes.
  • the fixing device is reusable and easier to use. Many types of rackets of different materials, synthetic or metallic, can be fitted with the binding device without making modifications to the existing models.
  • the object of the present invention is to rationalize the method of stringing rackets and which is apparent from the characterizing part of claims 1, 7 and 10.
  • FIG. 1 represents an example of the interlacing 1 of strings according to the invention.
  • the strings 2 are interlaced at right angles.
  • the distance 3 between the strings varies during tension and adapts to the distances between the holes of the racket.
  • FIG. 2 represents the frame 4 of a tennis racket during the stringing.
  • the intertwining of the strings was placed on the frame, the ends 5 of the strings 2 extending beyond the frame used to tension and fix them.
  • the strings 6 are already fixed.
  • Intertwining 1 of the strings can be protected during shipping, storage and use in different ways. It can, for example, be placed between two sheets of plastic which can adhere together either by hot pressing, or by the vacuum packaging process, or by gluing, for example using a self-adhesive sheet. In this way, the strings of the interlacing are fixed in their places and cannot move relative to each other. You can also fix the strings of the interlacing using a temporarily acting glue.
  • the interlacing is placed on the frame and the individual strings strung one after the other in the holes of the binding device.
  • Each rope is stretched to the desired tension and fixed at both ends by the fixing device described below. In this way, it is no longer necessary to intertwine the strings when stringing and to thread the entire length of a string (about llm) through each hole.
  • the working time is considerably shortened. During repairs, a defective rope can be changed without losing tension on the assembly.
  • the device comprises the first part 9, the upper part 11 of which is formed by two frustoconical half-shells, separated by the slot 15, which surround the rope 7 at the time of the rope.
  • the inner surface 12 of these half-shells is provided with a screw pitch in order to increase the grip with the rope.
  • the part 9 slides in the second part 10 whose external profile is adapted to the shape of the frame 4.
  • the hole 13 is conical.
  • the piece 9 is placed in the piece 10 and all slipped into a hole in the frame.
  • the rope is slid from the inside to the outside of the frame, then stretched while keeping the fixing device in contact with the frame.
  • the part 9 operates like a jaw.
  • the two half-shells are forced against the rope by the effect of the part 9 wedged against the part 10.
  • the fixing system opens and can be removed and reused.
  • the parts of the fastening system can be made of light metal, such as aluminum, or of synthetic material.
  • a small tube of elastic material 14 can be placed at the bottom of the part 9, between the latter and the hole in the frame. This tube keeps the fixing system in place in the hole, which can be advantageous when a racket is equipped with this system in the factory and must be shipped without the fixing system being lost. On the other hand this tube protects the rope at the outlet of the fastening system.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Catching Or Destruction (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Ropes Or Cables (AREA)
  • Tents Or Canopies (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A stringing system for a racket consisting of two elements, a prewoven net of individual strings and a two piece fixing device, acting as a string clamp in the string hole of a racket frame under the string's own tension. A first member of the fixing device is tubular in shape and is designed to extend through the interior of the racket frame hole. Its upper portion extends outward from the frame hole and has a slot which separates it into two half shells. A second member of the fixing device is placed over the frame hole and is located entirely exteriorly of the hole. The exterior surface of the second member is adapted to the profile of the racket frame. During stringing of the racket, the first member is placed inside the second member and into the frame hole. The string is passed through the hole in the first member, such that when the first member slides into the second member, its two half shells are pressed together around the string to hold the string in place when under tension.

Description

L'invention se rapporte à un système de cordage de raquettes, par exemple de raquettes de tennis, ainsi qu'à son utilisation pour corder des raquettes au moyen d'un entrelacement préfabriqué et d'un système de fixation réutilisable.The invention relates to a racket stringing system, for example tennis rackets, as well as to its use for stringing rackets by means of a prefabricated interlacing and a reusable fastening system.

Les raquettes sont jusqu'à présent cordées en utilisant une ou deux cordes, l'une formant le cordage horizontal, l'autre le cordage vertical. Chaque corde doit être passée par un certain nombre de trous du cadre de la raquette. A chaque passage, la corde doit être tendue et fixée provisoirement, afin de permettre le passage en sens inverse à travers le trou suivant. Une fois les cordes placées dans un sens, les cordes dans l'autre sens doivent être entrelacées à travers les premières. Ce procédé classique est fastidieux et nécessite beaucoup de travail manuel.The rackets have so far been strung using one or two strings, one forming the horizontal string, the other the vertical string. Each string must be passed through a number of holes in the racket frame. At each pass, the rope must be stretched and provisionally fixed, to allow passage in the opposite direction through the next hole. Once the strings are placed in one direction, the strings in the other direction must be intertwined through the first. This classic process is tedious and requires a lot of manual work.

La présente invention consiste en deux éléments inventifs complémentaires :

  • - un entrelacement préfabriqué à cordes individuelles qui a l'avantage de pouvoir être préparé industriellement, permet de corder des raquettes rapidement sans devoir entrelacer une grande longueur de corde.
  • - un dispositif de fixation des cordes de raquette au moyen de deux pièces coulissant l'une dans l'autre et sertissant la corde lorsqu'elle est tendue, permettant de fixer les cordes individuellement les unes après les autres. Ce dispositif est utilisé avec l'entrelacement faisant partie de la présente invention ou pour corder une raquette à cordes individuelles.
The present invention consists of two complementary inventive elements:
  • - a prefabricated interlacing with individual strings which has the advantage of being industrially prepared, allows rackets to be strung quickly without having to intertwine a long length of rope.
  • - A device for fixing the racket strings by means of two parts sliding one inside the other and crimping the string when it is stretched, making it possible to fix the strings individually one after the other. This device is used with the interlacing forming part of the present invention or for stringing an individual string racket.

Par rapport au système connu ou le nom de "Strinqlork Head", le dispositif selon l'invention a l'avantage de pouvoir être utilisé sur n'importe quel type de raquette disposant pour chaque corde de trous individuels. En plus le dispositif de fixation est réutilisable et d'utilisation plus aisée. De nombreux types de raquettes de matières différentes, synthétiques ou métaliques, peuvent être équipées du dispositif de fixation sans apporter de modifications aux modèles existants.Compared to the known system or the name of "Strinqlork Head", the device according to the invention has the advantage of being able to be used on any type of racket having for each string of individual holes. In addition, the fixing device is reusable and easier to use. Many types of rackets of different materials, synthetic or metallic, can be fitted with the binding device without making modifications to the existing models.

La présente invention a pour but de rationaliser le procédé de cordage de raquettes et ressort de la partie caracté- risante des revendications 1, 7 et 10.The object of the present invention is to rationalize the method of stringing rackets and which is apparent from the characterizing part of claims 1, 7 and 10.

L'invention peut être mieux comprise au moyen des dessins qui représentent :

  • Figure 1 : un entrelacement de cordes selon l'invention.
  • Figure 2 : l'entrelacement placé dans le cadre d'une raquette au moyen du cordage.
  • Figure 3 : le système de fixation sur un cadre profilé en position ouverte.
  • Figure 4 : le système de fixation adapté à un cadre à profil plat en position fermée.
  • Figure 5 : détail de la première pièce du système de fixation.
The invention can be better understood by means of the drawings which represent:
  • Figure 1: an interlacing of strings according to the invention.
  • Figure 2: the interlacing placed as part of a racket using the rope.
  • Figure 3: the fixing system on a profiled frame in the open position.
  • Figure 4: the fastening system adapted to a flat profile frame in the closed position.
  • Figure 5: detail of the first part of the fastening system.

Ces dessins ne doivent être considérés qu'en tant qu'exemples.These drawings should only be considered as examples.

La figure 1 représente un exemple de l'entrelacement 1 de cordes selon l'invention. Les cordes 2 sont entrelacées à angle droit. La distance 3 entre les cordes varie au moment de la tension et s'adapte aux distances entre les trous de la raquette.FIG. 1 represents an example of the interlacing 1 of strings according to the invention. The strings 2 are interlaced at right angles. The distance 3 between the strings varies during tension and adapts to the distances between the holes of the racket.

La figure 2 représente le cadre 4 d'une raquette de tennis pendant le cordage. L'entrelacement des cordes a été placé sur le cadre, les bouts 5 des cordes 2 dépassant le cadre servant à les tendre et les fixer. Les cordes 6 sont déjà fixées.FIG. 2 represents the frame 4 of a tennis racket during the stringing. The intertwining of the strings was placed on the frame, the ends 5 of the strings 2 extending beyond the frame used to tension and fix them. The strings 6 are already fixed.

L'entrelacement 1 des cordes peut être protégé pendant l'expédition, le stockage et l'utilisation de différentes façons. On peut, par exemple, le placer entre deux feuilles de matière plastique qui peuvent adhérer ensemble soit par pressage à chaud, soit par le procédé des emballages sous vide, soit par collage, par exemple en utilisant une feuille autocollante. De cette façon, les cordes de l'entrelacement sont fixées à leurs places et ne peuvent pas se déplacer les unes par rapport aux autres. On peut également fixer les cordes de L'entrelacement au moyen d'une colle agissant temporairement.Intertwining 1 of the strings can be protected during shipping, storage and use in different ways. It can, for example, be placed between two sheets of plastic which can adhere together either by hot pressing, or by the vacuum packaging process, or by gluing, for example using a self-adhesive sheet. In this way, the strings of the interlacing are fixed in their places and cannot move relative to each other. You can also fix the strings of the interlacing using a temporarily acting glue.

Pour corder une raquette de tennis, l'entrelacement est placé sur le cadre et les cordes individuelles enfilées les unes après les autres dans les trous du dispositif de fixations. Chaque corde est tendue à la tension désirée et fixée aux deux bouts par le dipositif de fixation décrit plus bas. De cette façon, il n'est plus nécessaire d'entrelacer les cordes lors du cordage et d'enfiler toute la longueur d'une corde (environ llm) à travers chaque trou. La durée du travail est nettement raccourcie.Lors des réparations on peut changer une corde défectueuse sans perte de tension sur l'ensemble.To string a tennis racket, the interlacing is placed on the frame and the individual strings strung one after the other in the holes of the binding device. Each rope is stretched to the desired tension and fixed at both ends by the fixing device described below. In this way, it is no longer necessary to intertwine the strings when stringing and to thread the entire length of a string (about llm) through each hole. The working time is considerably shortened. During repairs, a defective rope can be changed without losing tension on the assembly.

D'autre part, ce procédé permet d'effectuer tout le travail de cordage mécaniquement.On the other hand, this process makes it possible to carry out all the stringing work mechanically.

Des exemples du dispositif de fixation selon l'invention sont décrits aux figures 3, 4 et 5. Le dispositif comporte la première pièce 9 dont la partie supérieure 11 est formée de deux demi-coques tronconiques, séparées par la fente 15, qui entourent la corde 7 au moment du cordage. La surface intérieure 12 de ces demi-coques est munie d'un pas de vis afin d'augmenter l'adhérence avec la corde.Examples of the fixing device according to the invention are described in FIGS. 3, 4 and 5. The device comprises the first part 9, the upper part 11 of which is formed by two frustoconical half-shells, separated by the slot 15, which surround the rope 7 at the time of the rope. The inner surface 12 of these half-shells is provided with a screw pitch in order to increase the grip with the rope.

La pièce 9 coulisse dans la deuxième pièce 10 dont le profil extérieur est adapté à la forme du cadre 4. Le trou 13 est conique. Lors du cordage, la pièce 9 est placée dans la pièce 10 et le tout glissé dans un trou du cadre. La corde est glissée de l'intérieur vers l'extérieur du cadre, puis tendue tout en maintenant le dispositif de fixation en contact avec le cadre. Dès que la pièce 9 est poussée en position de serrage la tension est relachée, la pièce 9 fonctionne comme une machoire. Les deux demi-coques sont forcées contre la corde par l'effet de la pièce 9 coincée contre la pièce 10.The part 9 slides in the second part 10 whose external profile is adapted to the shape of the frame 4. The hole 13 is conical. When stringing, the piece 9 is placed in the piece 10 and all slipped into a hole in the frame. The rope is slid from the inside to the outside of the frame, then stretched while keeping the fixing device in contact with the frame. As soon as the part 9 is pushed into the clamping position the tension is released, the part 9 operates like a jaw. The two half-shells are forced against the rope by the effect of the part 9 wedged against the part 10.

Si l'on veut remplacer une corde, on la pousse vers l'extérieur, le système de fixation s'ouvre et peut être enlevé et réutilisé.If you want to replace a rope, push it outwards, the fixing system opens and can be removed and reused.

Les pièces du système de fixation peuvent être fabriquées en métal léger, tel que l'aluminium, ou en matière synthétique.The parts of the fastening system can be made of light metal, such as aluminum, or of synthetic material.

A titre d'exemple, voici les dimensions des deux pièces du dispositif fabriquées en aluminium :

  • Pièce 9 : Longueur : 12 mm Diamètre inférieur : intérieur : 2,0 mm extérieur : 3,0 mm Longueur de la fente : 10 mm Largeur de la fente : en bas : 0,5 mm en haut: 1,0 mm Diamètre des 2 coques ouvertes en haut : 4 mm Diamètre des pas de vis fermés : 1,1 mm
  • Pièce 10 : Largeur : 7 mm Longueur: 10 mm Epaisseur max. : 3 mm Diamètre supérieur du trou : 4mm Diamètre inférieur du trou : 3,1 mm
As an example, here are the dimensions of the two parts of the device made of aluminum:
  • Piece 9: Length: 12 mm Bottom diameter: inside: 2.0 mm outside: 3.0 mm Length of the slit: 10 mm Width of the slit: bottom: 0.5 mm at the top: 1.0 mm Diameter of 2 open shells at the top: 4 mm Diameter of closed screw threads: 1.1 mm
  • Part 10: Width: 7 mm Length: 10 mm Max. : 3 mm Upper hole diameter: 4mm Lower hole diameter: 3.1mm

Un petit tube en matière élastique 14 peut être placé au bas de la pièce 9, entre celle-ci et le trou du cadre. Ce tube permet de maintenir le système de fixation en place dans le trou, ce qui peut être avantageux lorsqu'une raquette est équipée de ce système en fabrique et doit être expédié sans que le système de fixation ne se perde. D'autre part ce tube protège la corde à la sortie du système de fixation.A small tube of elastic material 14 can be placed at the bottom of the part 9, between the latter and the hole in the frame. This tube keeps the fixing system in place in the hole, which can be advantageous when a racket is equipped with this system in the factory and must be shipped without the fixing system being lost. On the other hand this tube protects the rope at the outlet of the fastening system.

Claims (10)

1. Cordage pour raquette caractérisé en ce qu'il consiste en un entrelacement (1) préfabriqué de cordes individuelles (2).1. Racket string characterized in that it consists of an interleaving (1) prefabricated with individual strings (2). 2. Cordage selon la revendication 1, caractérisé en ce que chaque corde individuelle (2) dépasse l'entrelacement afin de permettre son introduction dans les trous du cadre de la raquette et sa tension.2. String according to claim 1, characterized in that each individual string (2) exceeds the interlacing in order to allow its introduction into the holes of the frame of the racket and its tension. 3. Cordage selon la revendication 1, caractérisé en ce que les espaces (3) entre les cordes correspondent aux distances des trous du cadre de la raquette.3. String according to claim 1, characterized in that the spaces (3) between the strings correspond to the distances from the holes in the frame of the racket. 4. Cordage selon la revendication 1, caractérisé en ce que l'entrelacement est muni d'un moyen fixant l'emplacement des cordes.4. Rope according to claim 1, characterized in that the interleaving is provided with a means fixing the location of the strings. 5. Cordage selon la revendication 1, caractérisé en ce que l'entrelacement des cordes est placé entre deux feuilles de matière plastique afin de fixer l'emplacement des cordes.5. Cord according to claim 1, characterized in that the interlacing of the strings is placed between two sheets of plastic material in order to fix the location of the strings. 6. Cordage selon la revendication 5, caractérisé en ce que les feuilles de matière plastique adhèrent l'une à l'autre par le vide, par pressage à chaud ou au moyen d'un adhésif.6. Rope according to claim 5, characterized in that the plastic sheets adhere to one another by vacuum, by hot pressing or by means of an adhesive. 7. Dispositif de fixation de cordes.de raquette, caractérisé en ce qu'il comporte deux pièces réutilisables, - une première pièce de section tubulaire d'un diamètre extérieur plus petit que les trous du cadre d'une raquette et dont la partie inférieure à un diamètre intérieur plus grand que celui d'une corde, dont la partie supérieure a une fente d'une largeur d'au moins 30% du diamètre de la corde, séparant la partie supérieure du tube en deux demi coques dont la surface extérieure est conique et va en s'élargissant vers le haut dont la surface intérieure est munie d'un pas de vis, le diamètre intérieur étant plus petit que celui de la corde lorsque les deux demi-coques sont forcées l'une contre l'autre. - une deuxième pièce se pose sur le cadre de la raquette à l'extérieur des trous, la forme extérieure étant adaptée au profil du cadre, et possédant un trou intérieur conique, le grand diamètre de ce trou étant placé à l'extérieur du cadre, et que, lors du'cordage, les deux pièces sont placées l'une dans l'autre dans les trous du cadre, une corde passant à travers la première pièce dont la partie supérieure est tournée vers l'extérieur du cadre, cette pièce coulissant à travers la deuxième et étant sertie par le trou conique forçant les deux demi-coques de la première pièce contre la corde et la fixant ainsi en place. 7. A device for fixing racket strings, characterized in that it comprises two reusable parts, - a first piece of tubular section with an outer diameter smaller than the holes in the frame of a racket and the lower part of which has an inner diameter larger than that of a rope, the upper part of which has a slot a width of at least 30% of the diameter of the cord, separating the upper part of the tube into two half-shells whose outer surface is conical and goes in widening upwards, the internal surface of which is provided with a thread, the internal diameter being smaller than that of the rope when the two half-shells are forced against each other. - a second part is placed on the frame of the racket outside the holes, the external shape being adapted to the profile of the frame, and having a conical inner hole, the large diameter of this hole being placed outside the frame , and that, during the stringing, the two pieces are placed one inside the other in the holes of the frame, a cord passing through the first piece, the upper part of which is turned towards the outside of the frame, this piece sliding through the second and being crimped by the conical hole forcing the two half-shells of the first part against the rope and thus fixing it in place. 8. Dispositif selon la revendication 7, caractérisé en ce que la longueur de la première pièce est au moins aussi grande que la longueur des trous du cadre.8. Device according to claim 7, characterized in that the length of the first part is at least as large as the length of the holes in the frame. 9. Dispositif selon la revendication 7, caractérisé en ce que la partie inférieure de la première pièce est entourée d'un tube en matière souple protégeant la corde à sa sortie et permettant de maintenir le dispositif' de fixation dans les trous même en l'absence d'une corde sous tension.9. Device according to claim 7, characterized in that the lower part of the first part is surrounded by a tube made of flexible material protecting the rope at its exit and making it possible to maintain the device 'fixing in the holes even in the absence of a live cord. 10. Utilisation du cordage pour raquette selon la revendication 1, et au moyen du dispositif de fixation selon la revendication 7, caractérisé en ce que l'entrelacement préfabriqué de cordes est placé sur le cadre d'une raquette, que les bouts des cordes sont individuellement introduits dans les trous du cadre, munis des deux pièces du dispositif de fixation, et que chaque corde est tendue et fixée.10. Use of the racket string according to claim 1, and by means of the fixing device according to claim 7, characterized in that the prefabricated interlacing of strings is placed on the frame of a racket, that the ends of the strings are individually inserted into the holes of the frame, provided with the two parts of the fixing device, and that each rope is tensioned and fixed.
EP84810369A 1983-07-26 1984-07-25 Racquet with string clamping means Expired - Lifetime EP0133165B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810369T ATE52039T1 (en) 1983-07-26 1984-07-25 TENNIS RACKET WITH DEVICE FOR STRING ATTACHMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4071/83 1983-07-26
CH407183 1983-07-26

Publications (3)

Publication Number Publication Date
EP0133165A2 true EP0133165A2 (en) 1985-02-13
EP0133165A3 EP0133165A3 (en) 1985-03-13
EP0133165B1 EP0133165B1 (en) 1990-04-18

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EP84810369A Expired - Lifetime EP0133165B1 (en) 1983-07-26 1984-07-25 Racquet with string clamping means

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US (1) US4741531A (en)
EP (1) EP0133165B1 (en)
AT (1) ATE52039T1 (en)
DE (1) DE3481976D1 (en)

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Publication number Priority date Publication date Assignee Title
FR2587902A1 (en) * 1985-10-02 1987-04-03 Contour Bernard Racket
EP0260671A2 (en) * 1986-09-18 1988-03-23 Hans-Werner Korte-Jungermann Racket, especially for tennis, and a device for stringing it
WO1990005002A1 (en) * 1988-11-09 1990-05-17 Klaus Flamm Stringing for tennis, badminton or like rackets
US4928963A (en) * 1986-10-25 1990-05-29 Reinhold Garbosch Racket, particularly a tennis or squash racket

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ATE132381T1 (en) * 1992-01-29 1996-01-15 Voelkl Franz Ski BALL GAME RACKETS, ESPECIALLY TENNIS RACKETS
AU712000B2 (en) * 1994-05-25 1999-10-28 Cogito Holdings Limited Improvements in racquets
US6027419A (en) * 1994-05-25 2000-02-22 Cogito Holdings Limited Method of tensioning the strings in a racquet
US5687176A (en) * 1995-06-09 1997-11-11 Hubbell Incorporated Zero byte substitution method and apparatus for telecommunications equipment
US5944624A (en) * 1996-12-23 1999-08-31 Prince Sports Group, Inc. Notched, slotted grommet for sports racquet
US6179735B1 (en) 1997-02-24 2001-01-30 Mcmahon Marshal Apparatus and method for maintaining differential tensions in the strings of a sporting racket
US5735759A (en) * 1997-03-24 1998-04-07 Lin; Se Game racket
US5816959A (en) * 1997-03-24 1998-10-06 Lin; Se Method for making game racket
US6132325A (en) * 1997-06-25 2000-10-17 Bertolotti; Fabio P Interlocking string network for sport rackets
US6506134B2 (en) 1997-06-25 2003-01-14 Fabio Paolo Bertolotti Interlocking string network for sports rackets
US5879248A (en) * 1997-11-26 1999-03-09 Marsico; Peter Joseph Stringed sports racquet incorporating interlocking string clamps
US6280354B1 (en) 2000-03-27 2001-08-28 Fabio P Bertolotti Monolithic string network for sport rackets
AU2000253310A1 (en) 2000-06-09 2001-12-24 Bb Group Interlocking string network for sport rackets
WO2004047929A2 (en) * 2002-11-26 2004-06-10 White Craig C Racquet strand clip
JP5792996B2 (en) * 2011-05-20 2015-10-14 株式会社石亀工業 Safety net

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US1526734A (en) * 1923-04-04 1925-02-17 Frederick B Andrews Tennis racket
BE426087A (en) * 1937-02-05 1938-02-28 Carl Georg Staub Tennis racket
CH356702A (en) * 1957-12-23 1961-08-31 Bouteleux Michel Device for tensioning the strings of a tennis racket
GB2058902A (en) * 1979-09-19 1981-04-15 Amf Inc Clamping elongate articles
GB2071253A (en) * 1980-03-07 1981-09-16 Amf Inc Tweezer wedge device
WO1981003431A1 (en) * 1980-06-02 1981-12-10 M Mcmahon Racquet strings and racquets

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US1621746A (en) * 1927-03-22 Tennis racket
CA636655A (en) * 1962-02-20 C. Daugert Peter Wedge anchors
US1562568A (en) * 1924-05-12 1925-11-24 Linquist Reynold Guy-line fastener
FR1196771A (en) * 1957-06-14 1959-11-26 Slazengers Ltd Process for minimizing breakage of sports racquet casings and damage to their frames
DE2605638A1 (en) * 1975-02-13 1976-09-09 Jacqueline Septier PROCESS FOR MANUFACTURING A NET FOR TENNIS RACKETS AND NET FOR STACKERS OBTAINED BY EXECUTION OF THE PROCEDURE AND USING THE NET AS STRINGING STRING
GB2041765B (en) * 1979-02-20 1982-12-08 Blackburne R M Rackets
DE2928748A1 (en) * 1979-07-17 1981-01-29 Edgar Strelow Tennis racquet stringing method - includes insertion of sleeve type element into bore of racquet frame, with string led through sleeve and subsequently tensioned and cut off

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US1526734A (en) * 1923-04-04 1925-02-17 Frederick B Andrews Tennis racket
BE426087A (en) * 1937-02-05 1938-02-28 Carl Georg Staub Tennis racket
CH356702A (en) * 1957-12-23 1961-08-31 Bouteleux Michel Device for tensioning the strings of a tennis racket
GB2058902A (en) * 1979-09-19 1981-04-15 Amf Inc Clamping elongate articles
GB2071253A (en) * 1980-03-07 1981-09-16 Amf Inc Tweezer wedge device
WO1981003431A1 (en) * 1980-06-02 1981-12-10 M Mcmahon Racquet strings and racquets

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587902A1 (en) * 1985-10-02 1987-04-03 Contour Bernard Racket
EP0260671A2 (en) * 1986-09-18 1988-03-23 Hans-Werner Korte-Jungermann Racket, especially for tennis, and a device for stringing it
EP0260671A3 (en) * 1986-09-18 1988-08-03 Hans-Werner Korte-Jungermann Racket, especially for tennis, and a device for stringing it
US4928963A (en) * 1986-10-25 1990-05-29 Reinhold Garbosch Racket, particularly a tennis or squash racket
WO1990005002A1 (en) * 1988-11-09 1990-05-17 Klaus Flamm Stringing for tennis, badminton or like rackets
EP0380822A1 (en) * 1988-11-09 1990-08-08 Klaus Flamm Stringing for a tennis, badminton or like racket
US5141227A (en) * 1988-11-09 1992-08-25 Klaus Flamm Prefabricated stringing for a sports racket

Also Published As

Publication number Publication date
US4741531A (en) 1988-05-03
EP0133165A3 (en) 1985-03-13
ATE52039T1 (en) 1990-05-15
EP0133165B1 (en) 1990-04-18
DE3481976D1 (en) 1990-05-23

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