JP3112247U - Racket gut with hollow core wire - Google Patents

Abstract

A racket gut having a hollow core wire is provided.
The core includes a core wire and a first winding layer, the core wire is a single wire having a predetermined length, and at least one hollow portion is provided. The hollow portion is provided in the core wire. And has a hollow shape and is stretched by a predetermined length in the axial direction. The first winding layer is formed by winding a plurality of windings of a predetermined length outside the core wire. With the above structure, the first winding layer wound around the outer periphery of the hollow core wire is combined. Thus, a racket gut is constructed, and its elasticity is increased by the air in the hollow core wire, and a vibration mitigating function is provided to reduce movement injury.
[Selection] Figure 1

Description

  The present invention relates to a kind of racket gut, particularly a racket gut used for tennis rackets and badminton rackets, which has a single wire core with a hollow interior, and has a simple structural design and its elasticity. The present invention relates to a racket gut structure that is improved and has improved ball control, reduces vibration and reduces hand movement injury.

  There are many types of racket guts available on the market, and the materials are nylon, artificial fiber, and sheep intestine. Among them, the elasticity of the sheep intestinal line is good, but it is easily worn out and has no durability. Nylon has a good appearance but is slightly inferior in elasticity, is easily affected by temperature, and is easily cut in winter. The two types of racket guts mentioned above are not widely used by tennis or badminton players. Currently, the most popular professional players in the official game are artificial fiber racket guts, which are made of sheep's intestine and nylon thread. It has advantages, prevents each shortcoming, is strong and reliable, and has very good elasticity. Synthetic fibers are produced in different diameters and thicknesses for selection by different spinning methods or different winding methods according to individual needs.

  The striking surface of the racket is formed by crossing a pair of guts and connected to the racket frame to form a good striking area, so-called sweet spot, on the striking surface. When a ball is hit at a sweet spot, the elasticity of the ball is relatively large, the ball speed increases, the arm strength is not consumed much, and the player can easily control the ball. The selection of the racket gut is related to the size, elasticity, and vibration level of the sweet spot formed by the knitting.

  Many racket gut designs place emphasis on the sweet spot area, the elasticity and the magnitude of the vibration energy, and if the sweet spot area is large, even beginners can hit well and slightly off the center. It is hard to lose the ball. Good elasticity means that the ball is sharp and uses less arm force and is suitable for processing fine techniques. Those with a small degree of vibration can reduce muscle contraction due to long-term vibration of the athlete, and the resulting muscle strain and fatigue caused by fatigue of the wrist and arm.

  The racket gut structure now increases the sweet spot area to make it easier for the sphere to enter the sweet spot, increases elasticity to increase ball control, reduces vibrations and reduces the vibration of the hand and arm. The increase in wear resistance is emphasized. Some known racket guts have a single core wire and a plurality of core wires, and Patent Document 1 describes a structure without a core wire in the middle, in which a plurality of windings of a predetermined length are spiral-type. And a metal wire having a predetermined length is wound with each winding. Patent Document 1 also describes a structure including a core wire in the middle, which includes a central axis, which includes a single wire or a plurality of wire bodies having a predetermined length, and a plurality of windings having a predetermined length. The first winding layer is formed by winding around the central axis in a spiral manner, and the metal wire is wound around the central axis in a spiral manner, which has a different drawing coefficient from the winding. .

  This structure utilizes a different draw coefficient between each winding and metal wire, and after being manufactured by spiral winding method, this racket gut has a clear uneven surface, so that the racket gut has good control when hitting It is supposed to have sex.

Taiwan Utility Model Registration No. 88208217 Specification

  The structure described in the above-mentioned Patent Document 1 utilizes a different drawing coefficient between each winding and a metal wire, and after being manufactured by a spiral winding method, the racket gut has an obvious uneven surface, thereby It is assumed that the gut has a good ball control performance when hit. The present invention recognizes room for improving the elasticity and vibration mitigation function of the structure, and aims to improve the structure and function of the racket gut having a single core wire.

  The main object of the present invention is to provide a racket gut having a hollow core wire, which is improved in elasticity and improved in ball control.

  A further object of the present invention is to provide a racket gut having a hollow core wire, which has a vibration mitigating function and can reduce hand and arm movement injury due to vibration shock.

The invention of claim 1 comprises a core wire which is a single wire body of a predetermined length and a first winding layer, and the first winding layer is formed by winding a plurality of windings of a predetermined length around the outer periphery of the core wire. It is a racket gut,
At least one hollow portion is provided in the core wire, the hollow portion has a hollow shape and is stretched by a predetermined length in the axial direction,
With the above structure, the hollow core wire provided with the hollow portion is combined with the first winding layer wound around the outer periphery to increase the elasticity of the racket gut and to have a vibration relaxation function. This is a racket gut having a hollow core.
The invention of claim 2 is a racket gut comprising a plurality of core wires, which is composed of a plurality of wire bodies of a predetermined length, and is provided with a covering layer so as to cover the outer periphery of the core wires. ,
Each core wire has a hollow portion, and the hollow portion has a hollow shape and is stretched by a predetermined length in the axial direction,
With the above structure, the hollow core wire provided with the hollow portion is combined with the first winding layer wound around the outer periphery to increase the elasticity of the racket gut and to have a vibration relaxation function. This is a racket gut having a hollow core.
The invention of claim 3 is a racket gut according to claim 1, wherein the first winding layer is wound around the outer periphery of the core wire in a spiral manner. Yes.
The invention of claim 4 is the racket gut according to claim 1, wherein the first winding layer is wound around the outer periphery of the core wire by cross knitting, as a racket gut having a hollow core wire. Yes.
The invention according to claim 5 is the racket gut according to claim 1 or 2, wherein the hollow portion is concentric with the core wire.
The invention according to claim 6 is the racket gut according to claim 4, wherein at least two second hollow portions are provided around the hollow portion in the core wire, and the second hollow portion has a hollow shape to form a core. A racket gut having a hollow core wire, characterized by being stretched a predetermined length in the axial direction of the wire.
The invention of claim 7 is the racket gut according to claim 1 or 2, characterized in that the core wire and the hollow portion have a triangular shape extending in the coaxial direction, and the racket has a hollow core wire. Got it.
The invention according to claim 8 is the racket gut according to claim 1, wherein a second winding layer comprising a plurality of predetermined lengths and windings wound around the outer periphery of the first winding layer in a spiral manner is provided. This is a racket gut having a hollow core.
The invention of claim 9 is the racket gut according to claim 1, wherein a second winding layer composed of a plurality of windings knitted in a predetermined length and cross is formed on the outer periphery of the first winding layer. It is a racket gut with a hollow core wire, characterized by being wound.
The invention of claim 10 is the racket gut according to claim 1, wherein a covering layer is provided so as to cover the outer periphery of the first winding layer. It is said.

  The racket gut of the present invention includes a core wire and a first winding layer, the core wire is a single wire having a predetermined length, and at least one hollow portion is provided, and the hollow portion is provided in the core wire. And has a hollow shape and is stretched by a predetermined length in the axial direction. The first winding layer is formed by winding a plurality of windings of a predetermined length outside the core wire. With the above structure, the first winding layer wound around the outer periphery of the hollow core wire is combined. Thus, a racket gut is constructed, and its elasticity is increased by the air in the hollow core wire, and a vibration mitigating function is provided to reduce movement injury.

  As shown in FIG. 1, a racket gut provided with a hollow core wire provided by the present invention includes a core wire 10, a first winding layer 20 wound around the outer periphery of the core wire 10, and a covering layer 30. Include.

  The core wire 10 is a single wire having a predetermined length, and has a hollow portion 11 at the center thereof. The hollow portion 11 is provided in the core wire 10 and is hollowed and extended in the axial direction by a predetermined length. Concentric with the core wire 10.

  The first winding layer 20 is formed by winding a plurality of windings having a predetermined length in a cross shape or by being wound around the core wire 10 in a spiral shape.

  The covering layer 30 covers the outer periphery of the first winding layer 20 and covers the core wire 10 and the first winding layer 20 therein.

  With the above structure, the core wire 10 in which the hollow portion 11 is formed is combined with the first winding layer 20 wound around the outer periphery in a spiral manner, and the outer periphery of the first winding layer 20 is covered with the covering layer 30. Thus, the racket gut of the present invention is completed.

  FIG. 2 shows a second embodiment of the present invention, in which the core wire 10 and the hollow portion 11 are formed in a triangular shape extending in the coaxial direction and having parallel sides.

  FIG. 3 shows a third embodiment of the present invention, in which four second hollow portions 12 are annularly arranged around the hollow portion 11 of the core wire 10, and the cross section of the second hollow portion 12 is in the form of water droplets. The second hollow portion 12 has a hollow shape and is extended in the axial direction of the core wire 10 by a predetermined length.

  FIG. 4 shows a fourth embodiment of the present invention, in which a second winding layer 40 is provided between the first winding layer 20 and the covering layer 30, which is knitted in a plurality of predetermined lengths and in a cross shape. Or it is comprised by the coil | winding wound around the outer periphery of the 1st winding layer 20 by the spiral winding system.

  FIG. 5 shows a fifth embodiment of the present invention, which comprises a plurality of core wires, which are composed of a plurality of wire bodies of a predetermined length, each core wire having a hollow portion, and this hollow portion is a core wire. A predetermined length is extended in the axial direction, and a coating layer is provided so as to cover the outer periphery of the core wire. In this structure, a plurality of core wires each having a hollow portion are combined to form a bundle, and a covering layer covering the outer periphery thereof is combined to increase the elasticity of the racket gut and have a function of relaxing vibration.

In summary, the racket gut provided with the hollow core wire provided by the present invention has the following features and effects in terms of structure and use.
1. The core wire 10 and the first winding layer 20 itself have the elasticity of the material, and the hollow portion 11 has an effect of providing air in the core wire and further increasing its elasticity, high ball control, Reduce the power of.
2. Utilizing the hollow hollow part 11 to reduce the transmission of vibration energy, achieve the function of vibration relaxation, reduce the exercise injury due to the load and fatigue of the hand and arm muscles of professional athletes who hold the racket for a long time, extremely useful .
3. The second hollow portion 12 has a hollow shape and a plurality of the second hollow portions 12 are installed on the core wire 10, so that the elasticity of the gut and the vibration relaxation function are further exhibited.
4). A configuration in which a plurality of core wires each having a hollow portion are combined into a bundle and a coating layer is combined on the outer periphery thereof improves the elasticity and vibration mitigation function of the gut.

It is a local solid external view of the first embodiment of the present invention. It is a local three-dimensional external view of 2nd Example of this invention. It is a local three-dimensional external view of 3rd Example of this invention. It is a local solid external view of 4th Example of this invention. It is a local solid external view of 5th Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Core wire 20 1st winding layer 11 Hollow part 30 Covering layer 12 2nd hollow part 40 2nd winding layer

Claims (10)

A racket gut comprising a core wire which is a single wire body of a predetermined length and a first winding layer, and the first winding layer is formed by winding a plurality of windings of a predetermined length around the outer periphery of the core wire. And
At least one hollow portion is provided in the core wire, the hollow portion has a hollow shape and is stretched by a predetermined length in the axial direction,
With the above structure, the hollow core wire provided with the hollow portion is combined with the first winding layer wound around the outer periphery to increase the elasticity of the racket gut and to have a vibration relaxation function. A racket gut with a hollow core. A racket gut comprising a plurality of core wires, which is composed of a plurality of wire bodies of a predetermined length, and is provided with a covering layer so as to cover the outer periphery of the core wires,
Each core wire has a hollow portion, and the hollow portion has a hollow shape and is stretched by a predetermined length in the axial direction,
With the above structure, the hollow core wire provided with the hollow portion is combined with the first winding layer wound around the outer periphery to increase the elasticity of the racket gut and to have a vibration relaxation function. A racket gut with a hollow core.   2. The racket gut according to claim 1, wherein the first winding layer is wound around the outer periphery of the core wire in a spiral manner.   The racket gut according to claim 1, wherein the first winding layer is wound around the outer periphery of the core wire by cross knitting.   The racket gut according to claim 1 or 2, wherein the hollow portion is concentric with the core wire.   5. The racket gut according to claim 4, wherein at least two second hollow portions are provided around the hollow portion in the core wire, and the second hollow portion has a hollow shape and has a predetermined length in the axial direction of the core wire. A racket gut having a hollow core wire, characterized by being stretched.   The racket gut according to claim 1 or 2, wherein the racket gut has a hollow core wire and has a triangular shape in which the core wire and the hollow portion are extended in a coaxial direction.   The racket gut according to claim 1, wherein a second winding layer comprising a plurality of predetermined lengths and windings wound around the outer periphery of the first winding layer in a spiral manner is provided. A racket gut with a hollow core.   The racket gut according to claim 1, wherein a second winding layer composed of a plurality of windings knitted in a predetermined length and in a cross shape is wound around the outer periphery of the first winding layer. A racket gut with a hollow core. The racket gut according to claim 1, wherein a covering layer is provided so as to cover the outer periphery of the first winding layer.

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