EP1280586B1 - Kunststoffverbundsaite für tennisschläger - Google Patents

Kunststoffverbundsaite für tennisschläger Download PDF

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Publication number
EP1280586B1
EP1280586B1 EP01931801A EP01931801A EP1280586B1 EP 1280586 B1 EP1280586 B1 EP 1280586B1 EP 01931801 A EP01931801 A EP 01931801A EP 01931801 A EP01931801 A EP 01931801A EP 1280586 B1 EP1280586 B1 EP 1280586B1
Authority
EP
European Patent Office
Prior art keywords
binder
monofilaments
rope
yarns
polyurethane
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.)
Expired - Lifetime
Application number
EP01931801A
Other languages
English (en)
French (fr)
Other versions
EP1280586A1 (de
Inventor
Yves Delvael
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.)
Cousin Biotech SAS
Original Assignee
Cousin Biotech SAS
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 Cousin Biotech SAS filed Critical Cousin Biotech SAS
Publication of EP1280586A1 publication Critical patent/EP1280586A1/de
Application granted granted Critical
Publication of EP1280586B1 publication Critical patent/EP1280586B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • 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
    • A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear

Definitions

  • the present invention relates to a composite synthetic rope, intended in particular, but not exclusively, tennis racket string.
  • FR-A-2,770,140 a two-component synthetic rope is described: multifilament yarns of polyamide and polyurethane, the multifilaments being integrated in a polyurethane matrix.
  • the polyurethane binder whose elastic behavior is much greater than that of polyamide, makes it possible to obtain, with a particular structure of the rope, a high tensile strength and an average hardness resulting in a rapid return of the rope in its initial position after the impact of a bullet.
  • the present invention aims to use this advantage and greatly extend the life of tennis ropes, even used with rigid frame rackets, with an original appearance.
  • the synthetic composite rope in particular for tennis racket, comprising threads of a first synthetic material and a binder made of a second synthetic material impregnating at heart, joining and covering said spirally wound threads, the point of fusion of the binder being lower than that of the yarns and its much higher elasticity, said yarns being made of multifilaments, is characterized in that at least one monofilament with two flat sides is arranged at the center of the cord, the latter being bent under traction, after its formation, causing delamination.
  • the rope is characterized in that the oblong monofilament appears as a contrasted spiral through the transparent binder.
  • a single flat monofilament flat wire is sufficient to achieve the desired effect.
  • the central monofilament or monofilaments are elongated monofilaments with very high tenacity, whose section is of generally rectangular shape with rounded edges. They are in a way a soul of the rope. We can also provide some small monofilaments disposed at the periphery of the rope to resist abrasion.
  • the central monofilament (or a bundle of multifilaments) can be colored to enhance the iridescent light effect. It is also possible to stain the polyurethane or binder in the mass.
  • the rope according to the invention is composed of polyurethane 1, forming the matrix of the rope and impregnating and surrounding multifilaments and monofilaments.
  • the polyurethane is between the multifilaments 2, and the central monofilaments 3 thus constitutes a homogeneous whole. It is also the bark 4 or outer shell layer of the rope.
  • oblong monofilaments 3 which, in the example shown, are two in number. But in all cases, monofilaments 3 are secured with the multifilaments 2 by the polyurethane matrix.
  • Monofilaments 3 also support the dynamic work of the rope.
  • the rope according to the invention furthermore stiffened by the presence of monofilaments, is easier to string.
  • the multifilaments 2, as well as the monofilaments 3, consist of polyamide known under the designation "nylon 6.6", whose shore hardness "D” is 85, or other polyamides and copolyamides.
  • the method of manufacturing by twisting such a rope is traditional, that is to say it consists in coating monofilaments and multifilaments before twisting and twisting them with a twist rate of 50 to 200 revolutions / meter, the rope being, after twisting and evaporation of the solvent, passed through a die of contour regularization and evacuation of the polyurethane in excess. After that, the tension is exerted on the rope which produces a delamination and causes the central monofilaments to appear through the polyurethane.
  • the multifilament coils, elongated monofilaments and are mounted on a turntable on which the son are coated with a polyurethane solution.
  • the wires pass through an oven that evaporates the solvent and prepolymers the polyurethane.
  • the threads are milled in a ring and the binder is finally polymerized in an oven. After that pull on the wire to achieve the desired effect.
  • the rope can thus be built in one operation and without rework.
  • the bending under tension exerted on the rope causes a delamination which makes that the spiral of the central monofilaments appears like a helix through the transparent polyurethane.
  • the pitch of the spiral is a function of twisting. It has been noted that the strings according to the invention have a sound, when the impact of a ball similar to that of natural gut.
  • the rope shown in FIG. 1 has a diameter of 1.30 mm and has a tensile strength greater than 80 daN. Its elongation of rupture is of the order of 25%, and its mass of 1.5 grams per meter. It consists of two oblong monofilaments of 2,200 decitex which, during twisting, are spirally wound, and four multifilament yarns including 140 filaments each with a diameter of 28 microns. The set of threads is twisted at 80 revolutions / meter.
  • the multifilament and monofilament are polyamide
  • this material can be replaced by any other synthetic material having good dynamic characteristics, such as polyester, for example.
  • the central monofilament son may be of any section provided to have two flat sides so that the contact between the two son can be done on a non-point surface.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ropes Or Cables (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Reinforced Plastic Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Passenger Equipment (AREA)
  • Artificial Fish Reefs (AREA)

Claims (3)

  1. Kunststoffverbundsaite, vor allem für Tennisschläger, Fasern (2) aus einem ersten synthetischen Material und ein Bindemittel (1) aus einem zweiten synthetischen kernimprägnierenden Material aufweisend, das die besagten spiralig gerollten Fasern zusammenhält und bedeckt, wobei der Schmelzpunkt des Bindemittels niedriger ist als der Schmelzpunkt der Fasern und seine Elastizität viel höher, wobei die besagten Fasern aus Multifilamenten, mindestens einem Monofilament (3), das zwei flache Seiten aufweist und in der Mitte der Saite angeordnet ist, aufweist, dadurch gekennzeichnet, dass die Saite durch eine zugfreie Biegung delaminiert wird.
  2. Verbundsaite nach Anspruch 1, dadurch gekennzeichnet, dass das längliche Monofilament (3) wie eine kontrastierende Spirale durch das transparente Bindemittel und die Multifilamente (2) erscheint.
  3. Verbundsaite nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Monofilamente (3) und die Multifilamentfasern (2) aus Polyamid sind, wobei das Bindemittel von Polyurethan gebildet wird.
EP01931801A 2000-05-09 2001-05-04 Kunststoffverbundsaite für tennisschläger Expired - Lifetime EP1280586B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0005848A FR2808697B1 (fr) 2000-05-09 2000-05-09 Corde synthetique composite pour raquette de tennis
FR0005848 2000-05-09
PCT/FR2001/001371 WO2001085268A1 (fr) 2000-05-09 2001-05-04 Corde synthetique composite pour raquette de tennis

Publications (2)

Publication Number Publication Date
EP1280586A1 EP1280586A1 (de) 2003-02-05
EP1280586B1 true EP1280586B1 (de) 2006-12-06

Family

ID=8849993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931801A Expired - Lifetime EP1280586B1 (de) 2000-05-09 2001-05-04 Kunststoffverbundsaite für tennisschläger

Country Status (7)

Country Link
US (1) US6978593B2 (de)
EP (1) EP1280586B1 (de)
JP (1) JP2003532506A (de)
AT (1) ATE347411T1 (de)
DE (1) DE60125028D1 (de)
FR (1) FR2808697B1 (de)
WO (1) WO2001085268A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0621234B1 (pt) * 2006-01-23 2016-11-08 Yoz Ami Corp objeto de fio colorido com uma substância corante e processo para produção de um objeto de fio colorido com substância corante
US8713906B2 (en) 2006-11-16 2014-05-06 Applied Nanotech Holdings, Inc. Composite coating for strings
US20080124546A1 (en) * 2006-11-16 2008-05-29 Nano-Proprietary, Inc. Buffer Layer for Strings
US20080206559A1 (en) * 2007-02-26 2008-08-28 Yunjun Li Lubricant enhanced nanocomposites
FR2934958B1 (fr) * 2008-08-12 2012-11-09 Babolat Vs Corde pour raquette, notamment pour raquette de tennis
BE1018246A3 (nl) 2008-08-14 2010-07-06 Luxilon Ind Nv Kunststofsnaar.
JP6525638B2 (ja) * 2015-02-26 2019-06-05 キヤノン株式会社 記録方法、記録物、記録物の処理方法、及び記録物の耐折り割れ性の向上方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048078A (en) * 1960-04-29 1962-08-07 Kaplan Philip Method of producing extensible electric cables
US3371476A (en) * 1965-04-02 1968-03-05 Gen Motors Corp Glass plastic rope
US4055941A (en) * 1976-12-09 1977-11-01 E. I. Du Pont De Nemours And Company Integrated string
FR2491098B1 (de) * 1980-09-26 1983-05-27 Cousin Freres Sa
FR2581094B1 (fr) * 1985-04-29 1987-09-11 Michelin & Cie Assemblage de renfort avec une ame constituee par un fil de forme; articles comportant de tels assemblages
US5145172A (en) * 1989-05-05 1992-09-08 Gosen Co., Ltd. String for racket
FR2770140B1 (fr) * 1997-10-23 2002-09-27 Cousin Biotech Corde synthetique composite pour raquette de tennis

Also Published As

Publication number Publication date
EP1280586A1 (de) 2003-02-05
US20030145574A1 (en) 2003-08-07
FR2808697A1 (fr) 2001-11-16
WO2001085268A1 (fr) 2001-11-15
US6978593B2 (en) 2005-12-27
ATE347411T1 (de) 2006-12-15
JP2003532506A (ja) 2003-11-05
DE60125028D1 (de) 2007-01-18
FR2808697B1 (fr) 2002-10-11

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