WO2011001805A1 - Corde de raquette, procédé pour sa fabrication, et raquette garnie de celle-ci - Google Patents

Corde de raquette, procédé pour sa fabrication, et raquette garnie de celle-ci Download PDF

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Publication number
WO2011001805A1
WO2011001805A1 PCT/JP2010/059790 JP2010059790W WO2011001805A1 WO 2011001805 A1 WO2011001805 A1 WO 2011001805A1 JP 2010059790 W JP2010059790 W JP 2010059790W WO 2011001805 A1 WO2011001805 A1 WO 2011001805A1
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WO
WIPO (PCT)
Prior art keywords
string
racket
flattened
stretched
cross
Prior art date
Application number
PCT/JP2010/059790
Other languages
English (en)
Japanese (ja)
Inventor
平田靖
海江田佳
大原叔行
Original Assignee
株式会社ゴーセン
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 株式会社ゴーセン filed Critical 株式会社ゴーセン
Priority to JP2010535153A priority Critical patent/JP4713692B2/ja
Priority to EP10793975A priority patent/EP2377583A1/fr
Priority to US13/059,434 priority patent/US20110136601A1/en
Priority to CN201080003005XA priority patent/CN102196840A/zh
Publication of WO2011001805A1 publication Critical patent/WO2011001805A1/fr

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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
    • 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
    • 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

  • FIG. 9 is a plan view showing a state in which the flattened string created in Example 3 of the present invention (in the case of a gap interval of 1.0 mm) is stretched on a hard racket.
  • FIG. 10 is a plan view showing a state where the flattened string created in Example 3 of the present invention (in the case of a gap interval of 0.9 mm) is stretched on a hard racket.
  • FIG. 11 is a plan view showing a state in which the flattened string created in Example 4 (in the case of a gap interval of 1.0 mm) is stretched on a soft racket.
  • FIG. 12 is a plan view showing a state in which the flattened string created in Example 4 of the present invention (in the case of a gap interval of 0.9 mm) is stretched on a soft racket.
  • the term “twist” refers to a state in which the long diameter portion of the string is twisted by about 90 degrees from a state perpendicular to the racquet surface and becomes horizontal, and vice versa. In some cases, the twist may be about 180 degrees. In the present invention, it is preferable that about 10 to 100 such twisted portions are included in the racket surface.
  • the number of twisted portions increases as the flatness increases. The string is twisted even when it is untwisted. (1) When unwinding from the coiled string, the so-called untwisting is inserted. (2) When the string end is inserted into the grommet, it is twisted.
  • the flat surface of the string forms the main surface, the contact area with the ball or blade is increased and the resilience is improved.
  • the uneven portion that is partially non-uniform due to twisting is likely to be spun because the long side portion of the flattened string faces the ball striking surface. As described above, there are preferably 10 to 100 uneven portions due to the twist.
  • the present invention further includes a twisted portion generated on the racket surface, that is, a portion where the warp yarn or the weft yarn becomes vertical, and a twisted portion.
  • a twisted portion generated on the racket surface that is, a portion where the warp yarn or the weft yarn becomes vertical
  • a twisted portion When this twist is entered, the long diameter portion of the string is in a state of standing perpendicular to the racket surface, and an uneven structure is formed.
  • This uneven portion is a characteristic when the string of the present invention is stretched on a racket, and improves resilience, softness and spin.
  • FIG. 2 is an explanatory view of a process for manufacturing a flattened string according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of the string before flattening.
  • the string 5 before processing shown in FIG. 3 is supplied from the wound body 4 to the heating device 6, passed between rollers 7 a and 7 b having a predetermined interval, and subjected to flattening deformation processing. It winds up on the take-up body 11. In this way, a substantially untwisted flattened string 10 is obtained.
  • 12 is a core thread
  • 13 is a side thread
  • 14 is a coating resin.
  • the method for producing a (flattened) string of the present invention may increase the number of steps because the number of flattening steps is increased as compared with a method for producing a normal round cross-section string.
  • the method for producing the string of the present invention has the following characteristics.
  • Example 3 (Comparative Example 3)
  • the monofilament contains three island components, the island component is nylon 6 blended with 10% by weight of polyethylene terephthalate, and the sea component is nylon 6.
  • Two round island trifilament monofilaments (0.89 mm diameter core yarn and 0. 195 mm side thread) was prepared.
  • the three island monofilaments (core yarn) 16 were wound on the surface of the three island monofilaments (core yarn) at a twist number of 85 times / m, and the periphery thereof was coated with nylon 6 as a coating resin.
  • the resulting string had a cross section of 1.32 mm in diameter.
  • the main synthetic fiber (nylon 6) constituting the string had a glass transition point (Tg) of 40 ° C. and a melting point (Tm) of 215 ° C. This string is referred to as Comparative Example 3.
  • this string 5 is supplied to the heating device 6 for 0.5 minutes at 80 ° C. and heated, and then the gap interval (also referred to as a gap gauge) is 0.9 mm or 1.0 mm.
  • the gap interval also referred to as a gap gauge
  • the cross-section of the resulting flat yarn string has a ratio of major axis / minor axis (flatness) of 1.42 when the gap interval is 0.9 mm and 1.28 when the gap interval is 1.0 mm. It was.
  • These strings are referred to as Example 3.
  • Example 4 (Comparative Example 4) Prepare one monofilament of nylon 6 with a diameter of 1 mm (core yarn) and 23 monofilaments of nylon 6 with a diameter of 0.14 mm (side yarn). After applying an adhesive to the surface of the core yarn, twist the number of side yarns. Winding was performed at 80 turns / m, and nylon 66 was coated as a binder coating resin around the periphery.
  • the obtained string 5 had a diameter of 1.30 to 1.31 mm (round section).
  • the main synthetic fiber (nylon 6) constituting the string had a glass transition point (Tg) of 40 ° C. and a melting point (Tm) of 215 ° C. This string is referred to as Comparative Example 4.
  • FIGS. 11 to 12 show a state in which the obtained flattened string is stretched around a hard racket.
  • FIG. 11 shows a hard racket stretched using a string obtained when the gap interval is 1.0 mm
  • FIG. 12 shows a hard racket stretched using a string obtained when the gap interval is 0.9 mm.
  • a black mark is a partially uneven portion due to twisting. The portion without the black mark is a region where the flat surface of the string forms the main surface. There were 32 uneven portions due to twist in FIG. 11 and 47 in FIG.
  • the resulting string was coated with nylon 66 as a binder coating resin using a nozzle having an elliptical cross section.
  • the cross section of the obtained coating string had a major axis of 1.47 mm and a minor axis of 1.08 mm (oval).
  • the cross section of the resulting coating string had a major axis / minor axis ratio (flatness) of 1.36.
  • the coating of the obtained coating string had a non-uniform film thickness.
  • the obtained coating string was stretched on a hard racket.
  • fluff and partial peeling occurred, and one of the three was severed.
  • Example 1 About Example 1 and Comparative Example 1, processing conditions (gap spacing, heating temperature and time, winding speed), cross-section (dimensions and flatness) of the obtained string, physical properties (strength, elongation, intermediate) of the obtained string
  • Table 1 summarizes the properties (stretchability, number of twisted portions after tension, and feel) when the obtained string is stretched on a gut.
  • Example 5 (Comparative Example 6) After impregnating high-strength nylon 6 multifilament (made by Toray Industries, trade name “Amilan” 2100T-306f: 3 and 940T-136f: 1) with a UV curable resin as a core yarn, with a nozzle (1.1 mm ⁇ ) A core thread was made by applying a twist of 300 T / m and curing by UV irradiation. Nylon 6 was melt coated on the core yarn to produce a multifilament type round section string. The string had a diameter of 1.23 mm, a strength of 64 kg, an elongation of 24%, and a knot strength of 27 kg. This string is referred to as Comparative Example 6.
  • This string was heated to 100 ° C. and flattened by passing between rollers with a gap of 1.10 mm.
  • the obtained flattened string had a major axis of 1.44 mm, a minor axis of 1.12 mm and a flatness of 1.29.
  • the string had a strength of 64 kg, an elongation of 26%, and a nodule strength of 29 kg.
  • the obtained string is referred to as Example 5.
  • the incident ball speed is 100 km / h
  • the angle is 40 degrees (perpendicular) and the rotational speed is approximately 0 rpm
  • the rotational speed of the rebounding ball is the average of 5 measurements
  • the round cross-section string is 2930 rpm
  • the flat string of this example had a high rotation speed of 3060 rpm and the ball, and the spin was well applied.
  • the amount of sinking when the weight collided with the racket surface was measured by the resilience test method used for the resilience evaluation in Example 1, and the maximum sinking amount was 6 mm for the comparative example, and 9 mm for this example product. Thus, it was confirmed that the product of this Example had a larger sinking amount, that is, softer and better biting.
  • the ball speed at the time of incidence is 40 km
  • the angle is 40 degrees
  • the rotational speed is approximately 0 rpm.
  • the flat string of the product of this example had a high ball rotation speed of 3130 rpm and a good spin.
  • the string of the present invention is useful for rackets such as hard tennis, soft tennis, badminton and squash.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention porte sur une corde de raquette (10), qui comprend une fibre synthétique, qui a une section transversale aplatie par une déformation de compression chauffée après une formation de corde, et qui a des indentations en des quelconques parties, la corde aplatie étant enroulée sensiblement sans torsion. L'invention porte également sur un procédé pour fabriquer cette corde, dans lequel, lorsque le point de transition vitreuse et le point de fusion d'une fibre synthétique principale constituant la corde sont désignés par Tg (°C) et Tm (°C), respectivement, la corde est chauffée à une température de Tg (°C) à Tm – 10 (°C) inclus, comprimée et déformée entre des rouleaux (7a, 7b) ayant un espace prédéterminé entre ceux-ci, puis refroidie et enroulée. L'invention porte également sur une raquette, qui est garnie de la corde de raquette, et sur la surface de frappe de balle de celle-ci, la corde ayant une surface plane formant une surface principale et ayant une partie partiellement irrégulière du fait de torsions. Ceci produit une corde de raquette apte à tirer partie des caractéristiques d'une surface plate, et ceci procure également un procédé pour fabriquer la corde et une raquette garnie de la corde.
PCT/JP2010/059790 2009-06-30 2010-06-09 Corde de raquette, procédé pour sa fabrication, et raquette garnie de celle-ci WO2011001805A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010535153A JP4713692B2 (ja) 2009-06-30 2010-06-09 ラケット用ストリングとその製造方法及びこれを張設したラケット
EP10793975A EP2377583A1 (fr) 2009-06-30 2010-06-09 Corde de raquette, procédé pour sa fabrication, et raquette garnie de celle-ci
US13/059,434 US20110136601A1 (en) 2009-06-30 2010-06-09 Racket string and method for producing the same and racket strung with the same
CN201080003005XA CN102196840A (zh) 2009-06-30 2010-06-09 球拍用线及其制造方法以及拉设有该球拍用线的球拍

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009155340 2009-06-30
JP2009-155340 2009-06-30

Publications (1)

Publication Number Publication Date
WO2011001805A1 true WO2011001805A1 (fr) 2011-01-06

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PCT/JP2010/059790 WO2011001805A1 (fr) 2009-06-30 2010-06-09 Corde de raquette, procédé pour sa fabrication, et raquette garnie de celle-ci

Country Status (7)

Country Link
US (1) US20110136601A1 (fr)
EP (1) EP2377583A1 (fr)
JP (1) JP4713692B2 (fr)
KR (1) KR20120034068A (fr)
CN (1) CN102196840A (fr)
TW (1) TW201103606A (fr)
WO (1) WO2011001805A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6812053B2 (ja) * 2016-04-27 2021-01-13 ヨネックス株式会社 ストリングセット、縦糸用のストリング及び横糸用のストリング
ES2776389T3 (es) * 2017-06-21 2020-07-30 Speed France S A S Cuerda monofilamento para una raqueta y procedimiento para fabricar dicha cuerda monofilamento

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077776A (ja) 1983-10-03 1985-05-02 株式会社ゴーセン ガツト
JPH0345732A (ja) * 1989-07-11 1991-02-27 Mitsubishi Rayon Co Ltd 複合扁平糸
JP2000210396A (ja) 1999-01-27 2000-08-02 Bridgestone Sports Co Ltd ストリングス
JP2005348851A (ja) 2004-06-09 2005-12-22 Toray Monofilament Co Ltd ラケット用ガット
JP2008048867A (ja) * 2006-08-24 2008-03-06 Gosen:Kk ラケットストリング用フィラメント、及び、前記フィラメントを用いたラケット用ストリング及びその製造方法
JP2008099859A (ja) * 2006-10-19 2008-05-01 Asahi Kasei Fibers Corp ガット
JP2009050660A (ja) 2007-08-23 2009-03-12 Yoshiro Kinoshita ラケット用ガット
JP2009061151A (ja) * 2007-09-07 2009-03-26 Asahi Kasei Fibers Corp ガット

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
JPS6312730A (ja) * 1986-07-02 1988-01-20 株式会社クラレ 産業資材用スパンライク糸
JPS63270835A (ja) * 1987-04-24 1988-11-08 東レ株式会社 光輝性織物
JP2615109B2 (ja) * 1987-12-26 1997-05-28 東レ株式会社 扁平状紡績糸の製造方法
JPH0343138A (ja) * 1989-07-10 1991-02-25 Toshiba Corp 窒化アルミニウム材の研摩方法
JPH07150434A (ja) * 1993-11-26 1995-06-13 Mitsubishi Chem Corp 樹脂製ストリング
AR022952A1 (es) * 1999-03-19 2002-09-04 Smithkline Beecham Corp ANTICUERPO MONOCLONAL DE ROEDOR ESPECIFICAMENTE NEUTRALIZANTE PARA LA INTERLEUQUINA-18 HUMANA , UN FRAGMENTO FAB NEUTRALIZANTE o FRAGMENTO F(AB')2, UNA REGION DE COMPLEMENTARIEDAD DE CADENA LIGERA DE INMONOGLOBULINA(CDR), UNA MOLECULA DE ACIDO NUCLEICO, COMPOSICION FARMACEUTICA QUE LO COMPRENDE, EL
JP2001098432A (ja) * 1999-09-29 2001-04-10 Toray Ind Inc 捲縮糸およびその製造方法
JP2002115142A (ja) * 2000-08-04 2002-04-19 Kumagai Fibers Kk 扁平糸及びその製法
JP2003020532A (ja) * 2001-07-11 2003-01-24 Kawabou Textured Kk スラブ扁平糸及びそれを使用した織物と編物
US20040213786A1 (en) * 2001-08-24 2004-10-28 Rappaport Family Institute For Research In The Medical Sciences Compositions and methods for treating T-cell mediated autoimmune diseases
JP4501624B2 (ja) * 2004-09-30 2010-07-14 東レ株式会社 エアベルト用基布およびその製造方法
JP2007330772A (ja) * 2006-05-17 2007-12-27 Toray Monofilament Co Ltd ラケット用ガット

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077776A (ja) 1983-10-03 1985-05-02 株式会社ゴーセン ガツト
JPH0345732A (ja) * 1989-07-11 1991-02-27 Mitsubishi Rayon Co Ltd 複合扁平糸
JP2000210396A (ja) 1999-01-27 2000-08-02 Bridgestone Sports Co Ltd ストリングス
JP2005348851A (ja) 2004-06-09 2005-12-22 Toray Monofilament Co Ltd ラケット用ガット
JP2008048867A (ja) * 2006-08-24 2008-03-06 Gosen:Kk ラケットストリング用フィラメント、及び、前記フィラメントを用いたラケット用ストリング及びその製造方法
JP2008099859A (ja) * 2006-10-19 2008-05-01 Asahi Kasei Fibers Corp ガット
JP2009050660A (ja) 2007-08-23 2009-03-12 Yoshiro Kinoshita ラケット用ガット
JP2009061151A (ja) * 2007-09-07 2009-03-26 Asahi Kasei Fibers Corp ガット

Also Published As

Publication number Publication date
JP4713692B2 (ja) 2011-06-29
JPWO2011001805A1 (ja) 2012-12-13
CN102196840A (zh) 2011-09-21
US20110136601A1 (en) 2011-06-09
TW201103606A (en) 2011-02-01
EP2377583A1 (fr) 2011-10-19
KR20120034068A (ko) 2012-04-09

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