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JP4054736B2 |
A method of manufacturing autohesion thread such that a smooth surface is offered, the cutting thereof is easy, filaments composing thread are not frayed in cutting, drainability is superior, and plural kinds of filaments can be combined...
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JP4049636B2 |
A racket frame comprising a head, a shaft, a bifurcated throat and a connecting yoke 17 across the throat is equipped with a vibration-damping mounting for the stretched strings S. The mounting comprises a viscoelastic member 20 placed w...
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JP2008029711A |
To provide a coating agent for strings of a racket, which is low in deterioration with elapse of time, high in durability, free from notching, not causing twist of the strings and hardly undergoing deterioration of elasticity and repulsi...
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JP4044384B2 |
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JP2008017951A |
To drastically improve the repulsiveness and sweet spot area of a racket.In the racket frame, a yoke part is disposed between left and right throat parts to connect a head part and a shaft part. A gut stringing part surrounding the hitti...
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JP2007330772A |
To provide string which has smaller loosening by stress relaxation compared to conventional strings for a racket, excellent durability, and ball hitting performance similar to natural gut strings. The string for a racket comprises a sea ...
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JP3137693U |
To provide a height adjusting device for a holding portion of a catgut tensioning device for a racket. A frame holding stay b for holding a racket frame at an upper end of a support column erected on a base and enabling horizontal rotati...
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JP3137694U |
To provide a height adjusting device for a catgut holding portion of a catgut stretching device. The height adjusting device includes an upper mounting member c3 fixed to a base main body a of the adjusting device, and a lower mounting m...
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JP3136637U |
To provide a gut tensioning device of a gut tensioning machine for increasing the accuracy of gut tension. A base, a slide sheet, a pair of holding blocks, and a guide component are included, a first roll and a second roll are convexly p...
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JP2007244780A |
To provide a gut clamping mechanism and a gut stringer that enable a position of a clamp part to be stably fixed through simple structure and that facilitate lock release of the positional fixation and high work efficiency. The position ...
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JP3981276B2 |
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JP3134246U |
To provide a string clamp localization structure of a racket gut tensioning machine. A controller is composed of a pivot, a connecting base, and a knob, and is provided with a plug hole at the bottom of the knob and a pivot hole at the s...
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JP3133188U |
To provide a safety racket having an extremely good anti-vibration effect and making it possible to prevent damage to a gut exposed on a frame top. A frame top 20 having a large number of through holes 24, a grip, a connecting portion co...
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JP2007130406A |
To provide a tennis racket capable of raising repulsive force, attaining both of uniformity of repulsion property and control property, and reducing an impact and a vibration, by devising a new technology to the conventional shape, struc...
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JP3920915B2 |
A racquet stringing machine which accomplishes tensioning of the strings of a racquet by the use of one or more combination tensioning and holding clamp units which operate directly on the string inside the racquet. The present invention...
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JP2006345963A |
To provide a string for a racket with improved ball hitting feeling and durability.The string 10 is provided with a bundled body 18, and the bundled body 18 is covered with a covering material 19. The bundled body 18 is provided with 7 m...
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JP3861332B2 |
To produce articles such as sports articles excellent in several points among slidability, wear resistance and water repellency and to provide a method for producing them. In the case of a sports article, carbon film F having wear resist...
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JP2006325717A |
To provide a string which satisfies the sense of hitting and durability that is high in balance, even while being low cost.The string is composed by using a multifilament composed of polyamide or polyester, whose tire profile obtained fr...
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JP3125667U |
To provide a string for a racket having further excellent ball striking property and abrasion resistance. A first core wire having a core-sheath structure including a core portion along the axis direction and a sheath portion surrounding...
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JP2006255069A |
To provide a gut for a racket having superior durability compared with the conventional gut for the racket and having a ball hitting property and installation tension similar to those of a natural gut.This gut for the racket is formed of...
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JP2006239336A |
To offer a tennis racket that the users can easily restring its gut (tennis racket string).The tennis racket offers a partitioned (divisible) racket frame and the pre-stringed gut (string) cassettes which can be attached and detached, wh...
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JP2006519050A |
A sports racquet has a plurality of opposed string holes for anchoring the ends of the strings, at least one pair of contiguous string holes are replaced with an enlarged string hole having opposed bearing surfaces for securing the ends ...
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JP3806130B2 |
An objective is to provide a racket in which strings can be adjusted to have a desired tension in an easy manner. This racket includes: a loop-shaped frame body having an inner region in which strings are stretched in a net shape to prov...
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JP3123792U |
To effectively localize a lever, prevent the lever from being accidentally rotated, and improve the certainty of catgut pinching device localization. A catgut sandwiching device localization structure of a string machine is mainly compos...
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JPWO2004096379A1 |
An object of the present invention is to prevent the string surface from being scratched and to prevent twisting, thereby improving elasticity, repulsive force, etc., and further, providing a means capable of eliminating a sense of disco...
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JP3123245U |
To provide a racket which has an excellent elasticity of a gut net surface, is hard to cut the gut, has an effect of suppressing vibration, and thereby can provide a better effect of hitting a ball. A racket frame 20, at least one or mor...
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JP2005348851A |
To provide a string for a racket which has ball hitting property like a natural string and which has excellent durability and extensibility.The string for the racket consists of a twisted monofilament obtained by: braiding a monofilament...
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JP2005328884A |
To solve problems in which a method of spreading the gut string of a conventional tennis racket on the market is a spreading method by a single line, and in the racket with the string spread by the above method therefore, energy generate...
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JP2005319239A |
To provide a racket loaded with a tension adjuster without the need of changing a string many times by using the tennis racket including the tension adjuster while conventionally the tension degree of the string to be spread to the tenni...
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JP2005319238A |
To provide a tennis racket with a tension meter to be a guide of changing the string of the tennis racket, which is the tennis racket with the tension meter for recognizing changing time at a glance since the number of times of practices...
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JP3701539B2 |
To obtain a monofilament having practically sufficient mechanical strength and excellent processability, useful for surgical suture, or the like, by compounding a polylactic acid-based polymer with an aliphatic polyester except the polyl...
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JP2005177244A |
To provide a tennis racket enhancing repulsion properties of a hitting face thereof by increasing displacement of gut at hitting to expand the sweet spot part without not too much changing length of gut expansion.The tennis racket is pro...
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JP2005163231A |
To provide a biodegradable monofilament having improved heat-resistance and durability and provide a catgut for a tennis racket composed of the monofilament.The biodegradable monofilament is composed of a copolymerized polyester having a...
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JP3655624B2 |
A device for easily and efficiently replacing the gut (1) of a racket, comprising a mechanism (11, 12) for clamping a frame (F) at least at one position and a tension head (H) for holding a part of the gut (G) loosely pre-tensed through ...
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JP3628266B2 |
To provide a string for a racket which satisfies both of the feel of hitting (a soft feel) and durability and is obtainable at a low cost. The synthetic string for the racket consists of a monofilament configurated in such a manner the s...
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JP2004357982A |
To enhance the fly performance and vibration attenuation performance of a tennis racket.In the tennis racket 10, a rigid string protective material 21 having a plurality of cylinder parts 22 adapted to insert a string S therethrough and ...
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JP2004344602A |
To provide a base as a tool necessary for implementing a novel method, i.e., a vertically/horizontally tangled stringing method of a string, which is designed to reduce a burden of vibrations and shocks affecting the hand and arm due to ...
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JP2004329530A |
To provide a string for a racket which is hard to undergo a change in property by environmental variations, extremely excels in a fibril-proof nature without spoiling the same ball controlling nature as a natural string, and is excellent...
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JP3588526B2 |
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JP3581158B2 |
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JP2004283520A |
To provide a method of interlacing strings at their intersection points to form a net for increasing the instant and uniform diffusion of impact applied to a racket surface all over the same and absorbing the impact therein more effectiv...
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JP2004236743A |
To provide a means with which flaws are hardly made on the surfaces of strings, the strings are hardly twisted, and elasticity, repulsion, etc., of the strings are improved to reduce vibration transmitted to at the moment of hitting.Sili...
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JP2004202000A |
To provide a string whose wearing is suppressed for a long period and by which good ball-hitting feel appears.The string uses one nylon monofilament of 1.05 mm diameter as a core string 2. As an outer layer string 4, 16 nylon monofilamen...
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JP2004129934A |
To provide a string for a racket, in which a change in characteristic is hardly caused by environmental change, fibrillation resistance is extremely excellent without damaging the ball controllability on a par with a natural string, and ...
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JP2004068217A |
To provide a polyester conjugate monofilament particularly having characteristics as strings for rackets and the string for racket having both of the excellent ball-striking properties and the excellent surface pressure-retaining propert...
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JP2004052154A |
To provide a polyamide monofilament ≥0.5mm in filament diameter D having high knot strength especially even in the region of the filament diameter of as thick as 0.5-1.5mm, and to provide a method for producing the same.The polyamide m...
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JP2004008520A |
To provide a string protection material, realizing the high vibration damping performance and reduction of weight of a racket while maintaining enough strength, and to improve the degree of freedom for designing the racket by the string ...
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JP2003325706A |
To obtain a racket having high repulsive force and capable of striking back a ball in the proper direction.Guts are arranged in three directions crossing each other at an angle of approximately 120°.
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JP2003532506A |
The invention concerns a composite synthetic delaminated string in particular for a tennis racket. The string includes central monofilaments surrounded by multifilament yarns, the assembly being impregnated and coated with polyurethane a...
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JP3446166B2 |
PURPOSE: To improve controllability when a ball is hit by a tip part on a top part side and resiliency when it is hit by a center part or yoke part side. CONSTITUTION: A boundary line P is set at a position of 2/5 of entire length in the...
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