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JPH07241915A |
PURPOSE: To form a frame for a game racket by helically winding a tow of a filament material and a thermoplastic material. CONSTITUTION: In an embodiment of disperse winding, the first revolution of a filament material is shown by a tow ...
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JPH0784022B2 |
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JPH0783777B2 |
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JPH07236713A |
PURPOSE: To make a frame for game-racket moldable by winding tow, made of filament material, around a mandrel to mold a tube then taking out the mandrel and placing the tube on a metallic mold shaped as a frame for game- racket to form t...
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JPH07236712A |
PURPOSE: To eliminate surface voids and to enable to stop voids and to make filing unnecessary by placing a tube made of tow of a filament material in cavities of a metallic mold and applying pressure to the tube to inject a resin into t...
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JPH07236711A |
PURPOSE: To offer a racket frame which has sufficient high strength as well as flexibility, as a whole, by reinforcing at least a part of a fiber reinforced plastic constituting racket frame with fused quartz fiber. CONSTITUTION: Plural ...
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JPH07231952A |
PURPOSE: To improve the moldability and workability of a grip by enabling the altering and exchanging of the shape, size and the like of a grip part according to the preference of a player, the adjustment of the magnitude of impact and v...
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JPH0743591U |
[Purpose] The purpose of this device is to increase the racket resistance and accurately record the position of the ball hitting the racket during tennis practice. [Constitution] A practice tennis racket characterized in that a resistanc...
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JPH0779854B2 |
The present invention refers to a handle for different applications realized with a hollow element (16), that can be separated from or in a single body with the object of which it is the handle, inside which there is an air tube (15), th...
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JPH0737645Y2 |
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JPH0779855B2 |
Apparatus for facilitating the removal of a grip from a handle, such as a golf club, comprises a double side tape wrapped about the handle with a cutting wire embedded therein. Adhesive is placed about the tape with the grip placed there...
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JPH07227441A |
PURPOSE: To provide a grip suitable for a handle of tennis racket, etc., with improved cushion performance by applying a felt layer on the inner surface of a polyurethane layer, and forming holes perpendicular to the longitudinal axial l...
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JPH07223271A |
PURPOSE: To produce an FRP bent pipe or racket having excellent characteristics and stable quality without producing a void, a pinhole and a resin flow defective part on the surface thereof. CONSTITUTION: A fiber reinforced plastic bent ...
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JPH0775629B2 |
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JPH07213652A |
PURPOSE: To provide a racket frame in which a cost can be reduced by reducing working time and labor by omitting a work process and parts, and a grip part is formed in light weight and high strength. CONSTITUTION: This frame is provided ...
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JPH07204294A |
PURPOSE: To provide a racket frame having light weight and yet high strength, high vibration attenuation function, and a high degree of freedom for frame design. CONSTITUTION: This racket frame F is formed out of an internal constituent ...
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JPH0733814Y2 |
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JPH07194756A |
PURPOSE: To provide a grip band fitting device for preventing the vibration of a racket from being transmitted to the wrist or the elbow as much as possible by softly grasping a grip. CONSTITUTION: This grip band fitting device is compos...
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JPH07194741A |
PURPOSE: To provide a racket frame which is lightweight, is highly strong, is formed with gut holes simultaneously with frame molding and is improved in production efficiency. CONSTITUTION: A tube blank consisting of a thermoplastic synt...
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JPH07178202A |
PURPOSE: To improve deflectiveness and to decrease the twists around an axis by forming at least a part of a shaft to such an irregular shape that the section thereof perpendicular to the axial line of the shaft has a major axis along a ...
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JPH07178201A |
PURPOSE: To improve shock absorptivity as well as productivity and cost effectiveness by using a high molecular org. material and low molecular material as essential components of a shock absorbing material of a member for sports and usi...
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JPH0739866U |
[Purpose] It is a tennis racket that sequentially responds to the strength, skill and taste of a tennis player, and is related to a balance and weight-adjustable tennis racket aimed at economically and preventing damage to tennis elbow a...
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JPH07178200A |
PURPOSE: To provide a racket frame easy to manufacture and with good vibration absorption without making a special shape of the frame by making the cross section in vertical to the longitudinal direction of the shaft end part and the gri...
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JP3012506U |
A tennis racquet is provided with a head portion which has a substantially circular cross section to provide an aerodynamic shape. The maximum outside dimension of the cross section is less than 15 mm. The cross section is annular in sha...
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JPH07155407A |
PURPOSE: To decrease air resistance a frame receives by making the shape of a shaft portion an oval shape of a convex lenslike section, forming an outer side groove, an inner side groove and an opening portion groove at widthwise center ...
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JPH0755521B2 |
In a method of manufacturing a ball game racket frame, in particular tennis racket, squash racket or badminton racket frame, having a head and a handle, with at least the head and/or the handle being formed from a fibre reinforced plasti...
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JPH0755239B2 |
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JPH07148296A |
PURPOSE: To make an additional load material correspond to increase or decrease of weight without being extended to the inside of the ball hitting zone by providing a first material block of a quantity enough to the concentration weight ...
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JPH07148295A |
PURPOSE: To further reinforce a hit enable band by an extended barrel length part so as to give the highest speed to a ball by providing a cylindrical barrel which has a specified outside diameter of a hit corresponding band and is exten...
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JPH0728578U |
[Purpose] The primary purpose is to allow the user to easily adjust the balance of the racket and to improve the appearance without exposing the weight. The second purpose is to alleviate the impact applied to the palm from the end cap w...
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JPH0724355U |
[Purpose] We will supply tennis rackets with strong elasticity by increasing the coefficient of restitution of tennis rackets and expanding the sweet spot. [Constitution] Nylon tubes are installed in all the cavities connecting the frame...
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JPH07108071A |
PURPOSE: To facilitate manufacture, and enhance the degree of freedom of frame form by forming a frame having a guide groove for gut or capable of installing a guide adaptor, stringing a gut to wind it on the outer edge without extending...
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JPH0715564Y2 |
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JPH0717263U |
[Purpose] A racket that can be disassembled and easily stored in a bag for convenient carrying. [Constitution] A racket that has a male screw on the racket frame and a female screw on the grip so that both can be disassembled.
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JPH0717262U |
[Purpose] It absorbs the impact of hitting the racket on the court and protects the wrists and elbows, and also provides a protector that does not easily deform when the gut is stretched. [Constitution] In the protector attached to the s...
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JPH0724687B2 |
Apparatus for accessing the circulatory system of a person or animal includes a port and a device for accessing the port. The access device has a solid introducer with a catheter received thereabout. The introducer and catheter are cover...
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JPH0715065U |
[Purpose] Provided is a gut protective body that is easy to bend according to the angle of the gut insertion hole, has appropriate rigidity, and is easy to insert. [Constitution] In the gut protective body to be attached to the racket fr...
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JPH0767987A |
PURPOSE: To provide a racket frame a working process of which is simple, voids and pin holes are a little on the surface, strength is large, and weight is light. CONSTITUTION: Continuous fiber is wound for covering on a plastic tube core...
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JPH0715064U |
[Purpose] Providing a grip that has both bending elasticity and strength. [Constitution] The grip 20 includes a grip portion 21 formed in a hollow tubular shape, a rear covering portion 22 fitted to the outer periphery of the rear end of...
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JPH0767988A |
PURPOSE: To provide a gut protective body suitable for a frame wherein a gut penerating hole is directed from a frame outer peripheral side center position to a frame inner peripheral side off-center position by providing an opening part...
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JPH0713366U |
[Purpose] An object of the present invention is to improve the adhesiveness of a grip cap that is fixed to the tip of a grip of a badminton racket. [Constitution] A step in which the grip cap is made of elastic rubber or synthetic resin ...
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JPH0713365U |
[Purpose] It provides a lightweight grip structure that can easily form racket grips of various sizes. [Constitution] The terminal side 11 of the racket shaft 1 is formed to the required minimum diameter, and the size adjusting member 4 ...
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JPH0713364U |
[Purpose] In sports rackets, distributing dynamic tension prevents catgut damage, improves ball orientation, prevents batter's hand and arm injuries, and reduces head frame damage. With the goal. [Constitution] The large number of throug...
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JPH0751407A |
PURPOSE: To decrease the burden applied on the wrists and elbows at the time of hitting a ball by inserting grommet into at least a part of gut insertion holes formed on a racket frame and projecting plural pieces of the grommets by a sp...
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JPH0751411A |
PURPOSE: To make it possible to apply designs, such as characters, on the outer peripheral surface of the frame of a racket having the frame consisting of a non-wooden material and a protective material mounted on the peripheral surface ...
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JPH0747152A |
PURPOSE: To provide a fiber-reinforced resin racket frame which is excellent in vibration attenuation property, better in ball hitting touch and free from environmental change while keeping a sufficient practical strength, rigidity and d...
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JPH0739609A |
PURPOSE: To enhance strength and rigidity and to enable a wide range of designs by using as a base material a thermoplastic FRP molded from a plurality of preimpregnated members in which reinforcing fibers are aligned in the same directi...
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JPH0731336A |
PURPOSE: To obtain a bent laminated tube by easily removing a mandrel from an intermediate bent laminated tube. CONSTITUTION: A mandrel 4 made from a water-soluble resin is wrapped with prepreg sheet 5 to effect temporal tacking, and the...
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JPH077663U |
[Purpose] Approximately semi-circular cross-sectional shape that can reduce the manufacturing cost by reducing the cross-sectional area and making it with a relatively small amount of carbon fiber reinforced resin material without impair...
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JPH073671U |
[Purpose] Providing a grip structure that has a good vibration reduction effect and is easy to assemble. [Constitution] The grip structure is applied to a racket having a head 40, a grip 10, and a connecting portion 20 connecting the hea...
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