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JP2003260152A |
To enhance the durability and performance of gut for rackets by adopting easy and simple spraying.While the recent gut for rackets progresses near to perfection, the spraying that can be easily and simply practiced helps enhancing the du...
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JP2003525716A |
The invention provides an improved racquet and a method of stringing a racquet wherein the racquet includes grommets that are divided into visually differentiated groups in order to make stringing the racquet quicker and easier. Accordin...
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JP2003525717A |
Disclosed is a tennis racket stringing machine. The machine comprises racket fastening means including a lower supporting plate on which a head frame of a tennis racket is seated to be securely maintained in a lengthwise direction of the...
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JP3427514B2 |
PURPOSE: To make it possible to efficiently produce a string protective material having good shock absorbability. CONSTITUTION: The band part 14A of this string protective material 24 consists of an upper layer 26 and a lower layer 28 an...
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JP2003180882A |
To develop and provide a method for keeping durability of the gut of a racket by which the gut is protected by keeping a twist and elasticity in a racket and also durability is raised in the racket.A coating agent (1) such as a fluorocar...
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JP2003164550A |
To provide a much higher control performance by holding a tension difference between strings not to be uniformized.By making odd the total number of longitudinal strings, the longitudinal strings are arranged on a longitudinal center lin...
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JP2003154039A |
To provide a string which eliminates such problems as noted in durability, resilience of golf balls and the like by using poly(1,3-propylene terephthalate) fibers as a main component.At least one of the core yarn and the side yarn is com...
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JP2003129332A |
To provide a polyester monofilament having sufficient compression properties, a high yarn slippage preventing effect and an excellent impact resistance, free from a trouble of winding around a side yarn and usable as a gut as it is.The m...
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JP2003102874A |
To provide a gut protective body which can be inserted easily and accurately into gut insertion holes without employing complicated structures.The gut protective body 1 comprises cylinder parts 15 inserted into the respective gut inserti...
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JP2002537004A |
A racket includes a frame in which through-holes are made, shank carrying cleats including a pair of shanks which are engaged in the holes, and a stringing mounted on the frame by threading through the shank-carrying cleats, so as to pro...
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JP2002306639A |
To improve repulsive performance of a lightweight tennis racket by enlarging a sweet area of a ball hitting surface.In this racket, the strings are stretched as in the following. The length L1 of the minimum space part between vertical s...
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JP2002282395A |
To provide a gut protective body, which defies a damage occurred when the gut is stretched with a high tension, excels in durability and is, moreover, capable of revealing a good elasticity characteristic at a strike, while suppressing t...
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JP2002272882A |
To provide a device for easily and efficiently stringing a gut.The device 1 for stringing the gut is provided with a case 2, a fixing tool or fixing a frame in the case, a rail arranged in the case along the frame which is fixed by the f...
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JP3317242B2 |
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JP3318247B2 |
To keep a ball hitting feeling, durability and tensioning capability, and improve a balance by transparentizing core yarn, main fiber yarn of skin yarn and a covering resin, forming residual fiber yarn of the skin yarn out of heat resist...
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JP2002210048A |
To provide a manufacturing method of a golf club head which can uniformize the thickness of a coating film.A paint 3 which is electrically charged is atomized into a mist state by an electrostatic coating machine 2. This golf club head 4...
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JP2002191724A |
To provide a gut protective body which is excellent in durability without breaking even when a gut is strung by a high tension, and in addition, can manifest favorable elastic characteristics at the time of hitting.A comparatively large ...
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JP2002165901A |
To provide a string for a racket having a high ball hitting durability and a long service life.This string comprises a core thread 1,a plurality of side threads 2 and 3 spirally wound about the core thread 1, and a coated layer 4 made of...
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JP2002085599A |
To provide a string which has good spreadability, is not damaged during spreading and can be improved in spinnability.This string for a racket is formed by coating the surface of a raw thread made of a synthetic resin with a resin mixtur...
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JP2001353235A |
To provide a racket for competition capable of reducing impact by heightening the mobility of a string to the outside of the plane of a string head.This racket for competition has a support member at a head part of a frame, and the inner...
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JP2001314532A |
To reduce the abrasion of mutual contact faces between a clamp handle and one side of a clamp body in contact therewith as less as possible.A roller 11 is journalled to the contact part with the clamp body in the side fixed to a support ...
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JP2001269423A |
To provide a racket wherein the replacement of a gut can be easily and simply performed. This racket 1 comprises a frame 11 and a ball-hitting surface section 21. In this case, for the frame 11, an opening 14 which expands on the vertica...
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JP3194431B2 |
The present invention provides a yarn composed of polytrimethylene terephthalate fibers, particularly polytrimethylene terephthalate multifilamentary fibers having a single-fiber size in a range from 1 to 56 dtex, which are collected tog...
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JP3177598B2 |
To provide a string which has a high coefft. of friction with a tennis ball and is consequently capable of sufficiently applying a spin to the tennis ball while having a good spreading property. This string comprises one core material 11...
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JP2001129127A |
To provide a gut spreading machine which eliminates the possibility that a frame F is deformed by the tension of threads during gut spreading. This gut spreading machine has holding members 1 consisting of inner pressing pieces 2 and out...
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JP3166031B2 |
To form layers with filaments in specified combination and cover a synthetic resin surface coating layer for good hitting feelings and excellent durability and repulsiveness. A racket gut has a core component 2 formed from a synthetic re...
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JP2001123378A |
To provide a string or a composite string having an easily applicable extremely thin adhesive layer having low friction coefficient and provide their production process. The coated string has (a) a 1st coating layer applied to a string a...
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JP2001095951A |
To easily and accurately correct a distortion between vertical strings and lateral strings generated on the gut of a racket. On a plate which can be fitted in the frame of a racket, protuberances of a conical, an oval conical, a triangul...
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JP2001095950A |
To provide a more favorable and more permanent friction-reducing device to facilitate the relative movements of strings of a sport racket, at the crossed points of the strings under an impact force from every angle. This friction-reducin...
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JP2001095949A |
To provide a racket frame, which can ensure a sufficient strength to hold a gut being stretched by a high tension, while being a racket frame which is lightweight and is excellent in operability. A gap W for the internal walls 12a and 12...
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JP3122479B2 |
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JP2001000589A |
To make the extending of gut easy even in positions where warp and weft overlap on each other and further to make gut protective materials distortion-free and hardly breakable by forming rugged fitting parts between the inside surfaces o...
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JP3117768B2 |
PURPOSE: To improve durability against a shock of a gut used for a tennis racket or a badminton racket. CONSTITUTION: Meta-aromatic polyamide fiber filaments are used at least for part of constituting fibers of a core thread 1 and windin...
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JP2000308699A |
To provide sporting goods capable of noticing and informing user of the necessity for maintenance or the service life, and preventing a sudden failure or breakage during the use in advance by providing a means for informing user of the d...
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JP3098702B2 |
To provide a string having excellent playing property, capable of providing pleasant playability to a prayer, not causing breakage even when used for a long time, excellent in durability as well as stretching property by curing a multifi...
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JP2000262653A |
To provide a string which has an excellent repulsive property to a ball, makes it possible to obtain a soft ball fitting feel and is small in tension loss. This string is made of a synthetic resin having core yarn and side yarn around th...
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JP2000210396A |
To easily spin a ball, to prevent the rubbing of strings and to improve a durability by continuously interleaving a thick width and a thin width in the strings from the point of side-face view. In the strings A extended on the phase surf...
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JP2000202067A |
To improve the spinning performance without changing the feeling of hitting a ball and the control performance. By providing a plurality of gut holes 5 and 6 in the thickness direction of the gut stretching portion of a racket frame, and...
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JP2000508952A |
A racquet with strings and a handle has at least a portion of the strung length of at least some of its strings at least partially within a cavity defined by the racquet's handle, and/or, in the case of a racquet having a shaft, a cavity...
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JP2000176053A |
To provide a racket that improves in plane stability and impact resilience by a normal shape and appearance and with no redundant weights mounted on the face.A face portion 2 has a multitude of gut insertion holes 6 connecting the extern...
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JP2000167088A |
To certainly fix a filament to a depth part in a safe and simple manufacturing process and improve durability and usage feeling, by fixing the filament with a specific visible-radiation-hardening-type adhesive composition, in a racket st...
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JP3025431B2 |
To produce a string for a racket capable of rising the commercial value by improving the transparency as well as prolonging the durability, by compounding aluminum borate whisker or particles into a surface resin coating layer. This stri...
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JP2000061004A |
To increase the effective length of a gut without lowering the strength of a gut-strung part. At least a part of string holes bored in a gut-strung part 12 surrounding a face side 11 of a hollow frame formed of a fiber-reinforced resin i...
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JP2000024141A |
To easily and inexpensively produce gut having a soft ball hitting feel such as natural gut or gut using multifilaments, by forming the core yarn of the gut to the hardness higher than the hardness of peripheral yarn and forming the peri...
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JP2000000331A |
To improve visibility and fashionability by forming at least a part of the surface of sporting goods out of a paint film or a material of an illumination light emitting material or an illumination reflecting material, and shining the lig...
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JPH11290483A |
To provide a tennis racket having high strength at four corners of a face part, and of light weight, in which damaging gut at the time of gut stretching work can be prevented. In a tennis racket having string holes in a face part 31, str...
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JPH11285549A |
To reduce an uncomfortable feeling to be given to a user by absorbing the vibration of a gut generated at the time of hitting a ball and to enhance the handleability by enlarging a sweet spot. The tennis racket is constituted by vertical...
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JPH11510716A |
(57) [Summary] The present invention relates to a coating for a racket with a strained gut, consisting of a solution of a letzente resin or fossil resin having a concentration of 1 to 50% in a low boiling organic solvent.
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JPH11206923A |
To make the surface side and the rear side of a face give different repulsive and rotational forces to a ball, respectively by providing a double face by providing two rows of holes at necessary positions of the frame of a racket and pas...
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JPH11206924A |
To make the tension adjustment of vertical and horizontal strings easy and obtain a uniform repulsive force from vertical and horizontal strings by stretching the strings diagonally to the axis of a racket. Racket strings 1 are stretched...
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