WO1987005228A1 - Tool for tensioning a racket string with control of the tension - Google Patents

Tool for tensioning a racket string with control of the tension Download PDF

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Publication number
WO1987005228A1
WO1987005228A1 PCT/CH1987/000023 CH8700023W WO8705228A1 WO 1987005228 A1 WO1987005228 A1 WO 1987005228A1 CH 8700023 W CH8700023 W CH 8700023W WO 8705228 A1 WO8705228 A1 WO 8705228A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
tool according
axis
rope
cylinders
Prior art date
Application number
PCT/CH1987/000023
Other languages
French (fr)
Inventor
Ivan Szedressy
Original Assignee
Ivan Szedressy
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 Ivan Szedressy filed Critical Ivan Szedressy
Publication of WO1987005228A1 publication Critical patent/WO1987005228A1/en

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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
    • A63B51/14—Arrangements for stringing, e.g. for controlling the tension of the strings during stringing
    • 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
    • A63B51/14—Arrangements for stringing, e.g. for controlling the tension of the strings during stringing
    • A63B51/143—Hand-held string-tensioning devices

Definitions

  • the invention relates to a tool for tensioning a rope of a racket, by resting on the outside of the racket frame, introducing the rope between the jaws formed by two half-cylinders (1,2) by exerting a push. progressive on the handle until the incorporated device signals that the desired tension of the rope is reached.
  • the purpose of the tool according to the invention is to make it possible to cord or repair a cord using the manual tensioner at all times. Its size and very low weight make it easy to take with you.
  • the advantage of the tool for tensioning the strings is that its use is very simple.
  • the position in front of the connecting axis (3) relative to the fulcrum on the frame of a racket and relative to the handle serving as a lever, allows the rope to be plucked and tightened in a single movement.
  • the other advantage is the rounded and hollow shape, Fig. 2, of the two half-cylinders allowing a cord to be wrapped around them and in addition to resting on the frame without lateral sliding.
  • the part (3), Fig.3, by its shape and its place makes the introduction of a rope possible on both sides inside the jaws.
  • the hole (15) for connecting the part (3) is crossed by a conical axis (4) provided with a screw thread at its end (17), by screwing the axis the distance between the jaws, this makes it possible to tighten coders of different diameters in an optimal way.
  • a control device (14) is incorporated inside the handle. The device warns with an acoustic signal as soon as the desired voltage is reached.
  • Fig.l shows the tool according to the invention for tensioning a string of a racket seen from the side.
  • Fig.2 shows the tool seen from the front.
  • Fig.3 shows the connecting piece (3) and the axis (4) in detail.
  • Fig.4 shows the parts (7) (8) and the axis (10) in detail.
  • the two half-cylinders (1,2) serving as jaws, are interconnected by the device (3).
  • the connecting device (3) pivots around the axis (4).
  • the axis (4) according to Fig.3, is in its part where it passes through the opening (15), of conical shape (16).
  • the thread (17) at the end of the axis (4) allows adjustment of the distance between the jaws (1,2).
  • the hole (15) of the connecting piece (3) is tapped in a conical shape with the same angle of inclination as the conical part (16) of the axis (4).
  • the diameter of the opening (15) of the part (3) corresponds to the diameter, at the widest point in its conical part (16), of the axis (4).
  • the piece (7) in the form of a fork, is fixed at the top of the half-cylinder (1) with an inclination of about 60.
  • the upper section of the part (8) is located inside the tube (11), an opening (9) tapped in length allows a movement perpendicular to the axis (4) towards the inside of the tube (11).
  • the pointed part (18) of the part (8) is wedged by the spring (13) against the inclined bottom (19) at 45 ° from the part (7)
  • the handle pivots around the axis (10) when the pressure force exceeds the pressure of the spring (13) on the part (7) which abuts against the inclined wall (19).
  • the pressure of the spring (13) is adjustable by the screw (12) located at the end of the tube (11).
  • the inclined wall (19) causes the part (8) to move towards the inside of the tube (11) and, by this movement, releases the device (14).

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

Tool for tensioning a racket string, by bearing on the outer part of the racket frame, introducing the string between the jaws formed by two half-cylinders (1, 2) while exerting a progressive thrust on the handle till the incorporated device indicates that the desired tension of the string has been reached.

Description

Outil permettant de tendre une corde de raquette avec contrôle de la tension. Tool for tensioning a racket string with tension control.
L'invention concerne un outil permettant de tendre une corde d'une raquette, en prenant appui sur l'extérieur du cadre de la raquette, introduisant la corde entre les mâchoires formées de deux demi-cylindres (1,2) en exerçant une poussée progressive sur le manche jusqu'à ce que le dispositif incorporé signale que la tension souhaitée de la corde est atteinte.The invention relates to a tool for tensioning a rope of a racket, by resting on the outside of the racket frame, introducing the rope between the jaws formed by two half-cylinders (1,2) by exerting a push. progressive on the handle until the incorporated device signals that the desired tension of the rope is reached.
Les raquettes de tennis sont cordées jusqu'à présent dans des ateliers à l'aide de machines à corder souvent très encombrantes et coûteuses.Tennis rackets have so far been strung in workshops using stringing machines which are often very bulky and expensive.
L'outil selon l'invention a pour but de permettre de corder ou réparer un cordage à l'aide du tendeur manuel à tout mement. Sa taille et son poids très faible permettent de l'emporter facilement avec soi.The purpose of the tool according to the invention is to make it possible to cord or repair a cord using the manual tensioner at all times. Its size and very low weight make it easy to take with you.
L'avantage de l'outil pour tendre les cordes est que son utilisation est très simple. La position en avant de l'axe de liaison (3) par rapport au point d'appui sur le cadre d'une raquette et par rapport au manche servant de levier, permet de pincer la corde et tendre en un seul geste. L'autre avantage, est la forme arrondie et creuse, Fig.2, des deux demi-cylindres permettant d'enrouler une corde autour d'eux et en plus de prendre appui sur le cadre sans glissement latéral. La pièce (3), Fig.3, par sa forme et sa place rend l'introduction d'une corde possible des deux côtés à l'inté¬ rieur des mâchoires. Le trou (15) de liaison de la pièce (3) est traversé par un axe conique (4) muni d'un pas de vis à son extrémité- (17) , en vissant l'axe on peut aisément varié la distance entre les mâchoires, ceci permet de serrer des codres de différents diamètres d'une façon optimale. L'avantage de la position du manche du tendeur de cordes se trouvant fixé au milieu de la partie creuse extérieure du demi-cylindre (1), facilite l'enroulement de la corde des deux côtés du cylindre. Pour permettre le contrôle de la force de tension d'une corde au moment de la mise sous tension un dispositif de contrôle (14) est incorporé à l'intérieur du manche. Le dispositif avertit par un signal accoustique dès que la tension souhaitée est atteinte.The advantage of the tool for tensioning the strings is that its use is very simple. The position in front of the connecting axis (3) relative to the fulcrum on the frame of a racket and relative to the handle serving as a lever, allows the rope to be plucked and tightened in a single movement. The other advantage is the rounded and hollow shape, Fig. 2, of the two half-cylinders allowing a cord to be wrapped around them and in addition to resting on the frame without lateral sliding. The part (3), Fig.3, by its shape and its place makes the introduction of a rope possible on both sides inside the jaws. The hole (15) for connecting the part (3) is crossed by a conical axis (4) provided with a screw thread at its end (17), by screwing the axis the distance between the jaws, this makes it possible to tighten coders of different diameters in an optimal way. The advantage of the position of the handle of the cord tensioner being fixed in the middle of the hollow outer part of the half-cylinder (1), facilitates the winding of the cord on both sides of the cylinder. To allow control of the tensioning force of a rope at the moment of tensioning, a control device (14) is incorporated inside the handle. The device warns with an acoustic signal as soon as the desired voltage is reached.
L'invention est exposée ci-après plus en détails à l'aide des dessins représentant seulement un mode d'exécution.The invention is set out below in more detail with the aid of the drawings showing only one embodiment.
La Fig.l représente l'outil selon l'invention pour tendre une corde d'une raquette vu de côté.Fig.l shows the tool according to the invention for tensioning a string of a racket seen from the side.
La Fig.2 représente l'outil vu de face.Fig.2 shows the tool seen from the front.
La fig.3 représente la pièce de liaison (3) et l'axe (4) en détail.Fig.3 shows the connecting piece (3) and the axis (4) in detail.
La Fig.4 représente les pièces (7) (8) et l'axe (10) en détail.Fig.4 shows the parts (7) (8) and the axis (10) in detail.
Les deux demi-cylindres (1,2) servant de mâchoires, sont reliés entre eux par le dispositif (3). Pour permettre l'ouverture et la fermeture des mâchoires (1,2) le dispositif de liaison (3) pivotte autour de l'axe (4). L'axe (4) selon Fig.3, est dans sa partie où il traverse l'ouverture (15 ), de forme conique (16). Le pas de vis (17), au bout de l'axe (4), permet un réglage de la distance entre les mâchoires (1,2). Le trou (15) de la pièce de liaison (3) est taraudé en forme conique avec le même angle d'inclinaison que la partie conique (16) de l'axe (4). Le liamètre de l'ouverture (15) de la éièce (3) correspond au diamètre, à l'endroit le plus large dans sa partie conique (16), de l'axe (4). La pièce (7), en forme de fourche, est fixée en haut du demi-cylindre (1) avec une inclinaison de 60 environ. La section supérieure de la pièce (8) se trouve à l'intérieur du tube (11), une ouverture (9) taraudée en longueur permet un déplacement perpendiculaire à l'axe (4) vers l'intérieur du tube (11). La partie pointue (18) de la pièce (8) est calée par le ressort (13) contre le fond incliné (19) à 45° de la pièce (7) Le manche pivotte autour de l'axe (10) lorsque la force de pression dépasse la pression du ressort (13) sur la pièce (7) en butée contre la paroi inclinée (19). La pression du ressort (13) est réglable par la vis (12) se trouvant au bout du tube (11). La paroi inclinée (19) provoque le déplacement de la pièce (8) vers l'intérieur du tube (11) et déclanche, par ce mouvement, le dispositif (14). The two half-cylinders (1,2) serving as jaws, are interconnected by the device (3). To allow the jaws (1,2) to be opened and closed, the connecting device (3) pivots around the axis (4). The axis (4) according to Fig.3, is in its part where it passes through the opening (15), of conical shape (16). The thread (17) at the end of the axis (4) allows adjustment of the distance between the jaws (1,2). The hole (15) of the connecting piece (3) is tapped in a conical shape with the same angle of inclination as the conical part (16) of the axis (4). The diameter of the opening (15) of the part (3) corresponds to the diameter, at the widest point in its conical part (16), of the axis (4). The piece (7), in the form of a fork, is fixed at the top of the half-cylinder (1) with an inclination of about 60. The upper section of the part (8) is located inside the tube (11), an opening (9) tapped in length allows a movement perpendicular to the axis (4) towards the inside of the tube (11). The pointed part (18) of the part (8) is wedged by the spring (13) against the inclined bottom (19) at 45 ° from the part (7) The handle pivots around the axis (10) when the pressure force exceeds the pressure of the spring (13) on the part (7) which abuts against the inclined wall (19). The pressure of the spring (13) is adjustable by the screw (12) located at the end of the tube (11). The inclined wall (19) causes the part (8) to move towards the inside of the tube (11) and, by this movement, releases the device (14).

Claims

Revendications claims
1. Outil pour tendre une corde d'une raquette caracté¬ risé en ce que, en prenant un point d'appui sur l'extérieur du cadre, la corde est introduite entre les deux demi-cylindres (1,2), par la force de pression sur le manche, le pincement et la mise sous tension d'une corde s'effectue en un seul mouvement de force.1. Tool for stretching a string of a racket caracté¬ ized in that, by taking a fulcrum on the outside of the frame, the string is introduced between the two half-cylinders (1,2), by the pressure force on the handle, the plucking and tensioning of a rope is carried out in a single movement of force.
2. Outil selon revendication 1 caractérisé en ce que la pièce de liaison (3) et l'axe (4) permettent l'ouverture et la fermeture des demi-cylindres (1,2), se positionnent en avant par rapport au point d'appui de l'outil sur le cadre et par rapport au point d'où la force de pression est appliquée sur le manche.2. Tool according to claim 1 characterized in that the connecting piece (3) and the axis (4) allow the opening and closing of the half-cylinders (1,2), are positioned forward relative to the point d support of the tool on the frame and relative to the point from where the pressure force is applied to the handle.
3. Outil selon revendication 1 caractérisé en ce que la pièce de liaison (3) se situe au milieu des deux surfaces servant pour sertir la corde, et de ce fait de permettre l'introduction de la corde des deux côtés des mâchoires.3. Tool according to claim 1 characterized in that the connecting piece (3) is located in the middle of the two surfaces used to crimp the rope, and thereby allow the introduction of the rope on both sides of the jaws.
4. Outil selon revendication 1 caractérisé en ce que l'axe (4) à l'endroit où il traverse la pièce (3) a une forme cônique(lδ), le trou (15) de la pièce (3) a le diamètre aussi grand que l'axe conique (16) à l'endroit le plus large pour permettre de visser l'axe (4) et varier la distance entre les mâchoires des demi-cylindres.4. Tool according to claim 1 characterized in that the axis (4) at the place where it crosses the part (3) has a conical shape (lδ), the hole (15) of the part (3) has the diameter as large as the conical axis (16) at the widest point to allow the axis (4) to be screwed and to vary the distance between the jaws of the half-cylinders.
5. Outil selon revendication 1 caractérisé en ce que la forme de la surface extérieure des deux demi-cylindres est de forme creuse pour permettre d'enrouler une corde autour des demi-cylindres.5. Tool according to claim 1 characterized in that the shape of the outer surface of the two half-cylinders is of hollow shape to allow to wind a cord around the half-cylinders.
6. Outil selon revendication 1 caractérisé en ce que le manche est fixé au milieu de la partie creuse située à la surface extérieure du demi-cylindre (1) et ainsi de permettre d'enrouler une corde autour des deux côtés du manche. 6. Tool according to claim 1 characterized in that the handle is fixed in the middle of the hollow part located on the outer surface of the half-cylinder (1) and thus allow to wind a cord around the two sides of the handle.
7. Outil selon revendication 1 caractérisé en ce que l'intérieur du manche est muni d'un dispositif de contrôle de la tension signalé par un avertisseur sonor dès que la tension choisie d'une corde est atteinte.7. Tool according to claim 1 characterized in that the inside of the handle is provided with a tension control device signaled by a horn as soon as the chosen tension of a rope is reached.
8. Outil selon revendication 7 caractérisé en ce que la force exercée contre le manche pendant la mise sous tension d'une corde dépasse la force du ressort (13), un pivotement du manche se produit autour de l'axe (4) provoquant un dépla¬ cement de la partie pointue (18) de la pièce (10) le long de la paroi (19) inclinée et le déplacement en même temps vers l'intérieur du tube, ce déplacement de la pièce (10) déclanche le signal sonor du dispositif (14) 8. Tool according to claim 7 characterized in that the force exerted against the handle during the tensioning of a rope exceeds the force of the spring (13), a pivoting of the handle occurs around the axis (4) causing a displacement of the pointed part (18) of the part (10) along the inclined wall (19) and the movement at the same time towards the inside of the tube, this displacement of the part (10) triggers the sound signal of the device (14)
PCT/CH1987/000023 1986-03-05 1987-03-03 Tool for tensioning a racket string with control of the tension WO1987005228A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH0892/86-0 1986-03-05
CH89286 1986-03-05

Publications (1)

Publication Number Publication Date
WO1987005228A1 true WO1987005228A1 (en) 1987-09-11

Family

ID=4197612

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1987/000023 WO1987005228A1 (en) 1986-03-05 1987-03-03 Tool for tensioning a racket string with control of the tension

Country Status (2)

Country Link
EP (1) EP0259387A1 (en)
WO (1) WO1987005228A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269515A (en) * 1993-04-29 1993-12-14 Chu David T Machine for stringing game racket
WO2007025624A2 (en) * 2005-08-30 2007-03-08 Micado Cad-Solutions Gmbh Tightening device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019394A (en) * 1934-06-04 1935-10-29 Clemons Frederick Alexander Tennis racket string tightener and gauge
GB471851A (en) * 1936-04-21 1937-09-13 Charles Paul Wilson Improvements in or relating to racket stringers
US4373721A (en) * 1981-02-27 1983-02-15 Ray Lynn L Racket stringer tensioner
DE3438030A1 (en) * 1983-10-17 1985-04-25 Besloten Vennootschap met beperkte aansprakelijkheid Rucanor, Berkel Device for tensioning strings in a racket frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019394A (en) * 1934-06-04 1935-10-29 Clemons Frederick Alexander Tennis racket string tightener and gauge
GB471851A (en) * 1936-04-21 1937-09-13 Charles Paul Wilson Improvements in or relating to racket stringers
US4373721A (en) * 1981-02-27 1983-02-15 Ray Lynn L Racket stringer tensioner
DE3438030A1 (en) * 1983-10-17 1985-04-25 Besloten Vennootschap met beperkte aansprakelijkheid Rucanor, Berkel Device for tensioning strings in a racket frame

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269515A (en) * 1993-04-29 1993-12-14 Chu David T Machine for stringing game racket
WO2007025624A2 (en) * 2005-08-30 2007-03-08 Micado Cad-Solutions Gmbh Tightening device
WO2007025624A3 (en) * 2005-08-30 2007-06-21 Micado Cad Solutions Gmbh Tightening device

Also Published As

Publication number Publication date
EP0259387A1 (en) 1988-03-16

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