KR20190044583A

KR20190044583A - Table tennis racket rubber with stability of hit return

Info

Publication number: KR20190044583A
Application number: KR1020187028475A
Authority: KR
Inventors: 쉬성 왕
Original assignee: 옌청 에이에스티 스포팅 굿즈 컴퍼니 리미티드
Priority date: 2016-08-19
Filing date: 2016-10-10
Publication date: 2019-04-30
Also published as: CN106237596B; WO2018032592A1; CN106237596A

Abstract

The present invention relates to a table tennis racket rubber in which the stability of the ball return is ensured. More specifically, the racket surface adhesive layer, the flexible intermediate layer 1 and the ball surface layer 2 are included in order; ), A closed cell foam (4) and an open cell foam (5); The surface of the fibrous layer 3 is equally equipped with a concave groove-shaped support groove 6 in the downward direction and the bottom width of the support groove 6 is narrower than the width of the top of the support groove 6; The open cell foam 5 is uniformly and continuously bonded under the support groove 6; The closed cell foam 4 is uniformly and continuously bonded to the lower surface of the fibrous layer 3 and is positioned between adjacent two support grooves 6 and the modulus of elasticity of the closed cell foam 4 is larger than the modulus of elasticity of the open cell foam 5 Lt; / RTI > The flexible intermediate layer 1 is provided with the peg-shaped deforming protrusions 7 uniformly on the top surface thereof and the pimples 8 uniformly provided on the bottom surface thereof; The hit-deforming projection 7 has an arcuate longitudinal cross-section; The pimple (8) has a columnar structure and its bottom width is narrower than the top width of the support groove (6); And the batted face layer (2) is a batted rubber. The present invention ensures that the elasticity of the rubber is not lowered and the service life is not reduced through the layered structure, the stability of the ball return is guaranteed, and the rubber ball is improved.

Description

Table tennis racket rubber with stability of hit return

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a physical exercise equipment, and more particularly, to a table tennis racket rubber having stability of hit return.

Table tennis is a popular ball game in China and is very popular in China. There are table tennis courts and table tennis fans everywhere. Formal table tennis players all wear rubber before the start of the game to ensure a good batting return effect. However, amateur ping-pong players and ping-pong fans can not satisfy this condition, so it is most important to choose a rubber that can guarantee the long-term return effect. However, the rubber according to the prior art is difficult to satisfy this demand, and the table tennis racket or rubber which can satisfy this demand is relatively expensive and is not suitable for amateur table tennis player.

Therefore, researching and manufacturing a rubber that can guarantee a long-term hit return effect is a disadvantage that ordinary intellectuals in the technical field of the present invention must solve urgently.

In order to solve the above-mentioned problems, the present invention discloses a table tennis racket rubber in which the stability of the ball return effect is ensured.

In order to achieve the above-mentioned object,

A racquet side adhesive layer, a flexible intermediate layer and a hitting face layer in order;

The racquet side adhesive layer includes a fibrous layer, a closed cell foam and an open cell foam; The surface of the fibrous layer is equally equipped with a concave groove-shaped support groove in the downward direction and the support groove bottom width is narrower than the support groove top width; The open cell foam is evenly and continuously bonded under the support groove; Wherein the closed cell foam is uniformly continuous bonded to the underlying surface of the fibrous layer and is positioned between adjacent two support grooves and the elastic modulus of the closed cell foam is less than the elastic modulus of the open cell foam;

The flexible intermediate layer is provided uniformly with the pawl-like deforming protrusions on the top surface and the pips are evenly provided on the bottom surface thereof; The ball-shaped deforming projection has an arcuate structure in its longitudinal section; The pimples have a columnar structure, the width of which is narrower than the width of the top of the support groove;

And the ball surface layer is a ball rubber, and the stability of the ball ball is ensured.

The table tennis racket rubber provided with the stability of the ball return provided by the present invention is composed of a racket surface adhesive layer, a flexible intermediate layer and a batted surface layer in order along the direction away from the table tennis racket. In the present invention, the racquet side adhesive layer is composed of a fibrous layer, a closed cell foam and an open cell foam, and the surface of the fibrous layer is uniformly provided with concave groove-shaped support grooves in the downward direction to provide a certain compression space to the upper flexible intermediate layer While supporting him. The support groove bottom width is narrower than the support groove top width, so that the longitudinal profile of the support groove has a larger upper side and a lower lower side shape to ensure that the upper flexible intermediate layer is still supported when the support groove is deformed. In the present invention, the open cell foam is uniformly and continuously bonded to the lower portion of the support groove, the closed cell foam is continuously and evenly joined to the surface of the fibrous layer and is positioned between the adjacent two support grooves, and the modulus of elasticity of the closed- Lt; / RTI > In this design, when the upper flexible intermediate layer is deformed by the impact of the table tennis ball, the open cell foam on both sides of the support groove is first deformed so that both sides of the support groove are pressed down first, When the closed cell foam inside the support groove is excessively large, when the ball collides with or contacts with the table tennis ball, the adhesive layer of the racket side is effectively deformed based on the impact of the table tennis ball and the elasticity of the upper flexible layer is sufficiently generated . In the present invention, the flexible intermediate layer is provided uniformly with the ball-shaped deforming protrusions on the top surface thereof, and the pimples are evenly provided on the bottom portion thereof. The deformed protrusion of the ball is designed in an arcuate profile and supports the upper ball surface layer. The space between the ball deforming protrusion and the adjacent two ball deforming protrusions leaves a certain space for deformation of the ball surface layer, and the ball deforming protrusion is deformed by pressure Thereby sufficiently generating a reaction force against the surface layer of the posterior surface. The circumferential pimple of the bottom is narrower than the width of the top of the supporting groove, so that the pimple on the bottom of the flexible middle layer can be extended into the supporting groove, thereby ensuring the quality of the batting deformation and further ensuring the quality of the batting. In the present invention, it is possible to select rubbers such as a pimple-out rubber and a pimple rubber based on specific usage preferences and usage conditions as a top-level surface layer at the top.

Preferably, the support groove has a longitudinal or semicircular cross-section; The open cell form and the closed cell form form a spherical structure.

Preferably, the support groove has an inverted isosceles trapezoid in its longitudinal section; Open cell foam and closed cell foam are regular hexagon.

In the present invention, the support grooves can be designed in a longitudinal or semicircular shape in a longitudinal section, and correspondingly, both the open cell and closed cell foams can have a spherical structure. The design scheme closely connects the open cell foam and the closed cell foam while supporting the top fibrous layer. Similarly, in the present invention, when the vertical cross-section of the support groove is designed to have an inverted isosceles trapezoid, the open cell foam and the closed cell foam can be designed to have a regular hexagon.

Preferably, the fibrous layer comprises a laminate structure and comprises a stratum corneum layer, a resilient layer and a lower fibrous layer; The upper fibrous layer and the lower fibrous layer intersect each other; The elastic layer is provided between the upper fibrous layer and the lower fibrous layer.

In the present invention, the fibrous layer is designed in a laminated structure and is composed of a stomach fiber layer, an elastic layer and a lower fibrous layer, wherein the upper fibrous layer and the lower fibrous layer cross each other to include a resilient layer therein; The upper fibrous layer and the lower fibrous layer intersecting with each other are formed with a laminated structure surface including continuous arcuate concave grooves and maintain the elasticity of the entire fibrous layer through the upper fibrous layer, the elastic layer and the lower fibrous layer having elasticity but having different elastic modulus.

Preferably, the constituent components of the upper fibrous layer and lower fibrous layer and the mass percentage of each component are 7-11 parts by weight of spandex, 5-8 parts by weight of butadiene rubber, and 1-2 parts by weight of a viscosity reinforcing agent.

In the present invention, both the upper fibrous layer and the lower fibrous layer are composed of spandex, butadiene rubber and a viscosity reinforcing agent. Spandex is more resilient, more dense in density, more cross-reactive, more resistant to chemical degradation and more environmentally friendly. Spandex has excellent acid resistance / alkalinity, sweat resistance and abrasion resistance, so that the fiber layer can be used for a longer time. Butadiene rubber is more resilient than rubber used on conventional rubber, and is superior in abrasion resistance and cold resistance, but has a slightly lower tensile strength. Based on butadiene rubber, it is combined with spandex to ensure that the upper and lower layers of fiber have various performances such as high elasticity, excellent tensile strength, acid / alkaline, sweat resistance and abrasion resistance. The viscosity reinforcing agent can increase the adhesion between the spandex and the butadiene rubber and the bonding strength.

Preferably, the elastic layer is woven with linear polyethylene as a stick-like elastic filling material.

In the present invention, the elastic layer is made of a stick-like elastic filling material woven with linear polyethylene, so that the elastic layer has better low temperature resistance and can resist most erosion of acidity and alkalinity. In addition, it is woven with linear polyethylene to ensure that the elastic layer has similar performance to polyethylene, as well as the overall stability of the elastic layer.

Preferably, the flexible intermediate layer is woven with SAP fibers.

In the present invention, the flexible intermediate layer is made of SAP fibers and has a predetermined elasticity. At the same time, the sweat absorbs sweat when exercising, thereby preventing the sweat from being absorbed on the racket face and affecting the batting.

Preferably, the pimples have a columnar structure, and the upper and lower end surfaces thereof are provided with an upper helical pattern and a lower helical pattern toward the center of the pimple, respectively; The upper spiral pattern and the lower spiral pattern are opposite to each other.

In the present invention, the pimples are designed in a columnar structure so as to be convenient for matching with the support holes, and the upper and lower end surfaces of the pimples are provided with a spiral pattern and a lower spiral pattern which are opposite to each other in a quadrangular pattern toward the center of the pimple, , Through the design of the lower helical pattern, a certain air gap exists between the racquet side adhesive layer and the flexible intermediate layer of the present invention, thereby effectively distributing the air therein; Allows the Mali Warlubber to be used for a long time by the circulating air when the flexible intermediate layer absorbs perspiration.

In contrast to the prior art, the present invention ensures that the elasticity of the rubber is not lowered and the service life is not reduced through the innovative layered structure, while the stability of the ball return is guaranteed and the rubber ball is improved.

1 is a structural example of the present invention.
2 is a structural example of a fiber layer in the present invention.
3 is a structural example of a pimple in the present invention.

Hereinafter, the technical solutions provided by the present invention in combination with specific embodiments will be described in detail. It is to be understood that the following detailed description is illustrative of the present invention but is not intended to limit the scope of the invention.

Example 1:

1 is a structural example of the present invention. The table tennis racket rubber provided with the stability of the ball return provided by the present invention includes, in order, a racket surface adhesive layer, a flexible intermediate layer 1 and a ball surface layer 2.

The racquet side adhesive layer comprises a fibrous layer (3), a closed cell foam (4) and an open cell foam (5); The surface of the fibrous layer 3 is equally equipped with a concave groove-like support groove 6 in the downward direction and the support groove 6 has an inverted isosceles trapezoid in the longitudinal direction and the bottom width of the support groove 6 is equal to the width of the support groove 6 ) Is narrower than the apex width; The open cell foam 5 is uniformly and continuously bonded under the support groove 6; The closed cell foam 4 is uniformly and continuously bonded to the lower surface of the fibrous layer 3 and is positioned between adjacent two support grooves 6 and the modulus of elasticity of the closed cell foam 4 is larger than the modulus of elasticity of the open cell foam 5 And the vertical cross-sections of the open cell foam 5 and the closed cell foam 4 are in a regular hexagonal shape.

2, the fibrous layer 3 has a laminated structure and includes the upper fibrous layer 9, the elastic layer 10 and the lower fibrous layer 11; The upper fibrous layer 9 and the lower fibrous layer 11 intersect each other; The elastic layer (10) is provided between the upper fibrous layer (9) and the lower fibrous layer (11); The compositional components of the upper fibrous layer 9 and the lower fibrous layer 11 and the mass percentage of each component are 9 parts by weight of spandex, 7 parts by weight of butadiene rubber and 1.5 parts by weight of a viscosity reinforcing agent. The elastic layer 10 is made of linear polyethylene as a stick-like elastic filling material.

The flexible intermediate layer 1 is woven with SAP fibers. The flexible intermediate layer 1 is provided with the peg-shaped deforming protrusions 7 uniformly on the top surface thereof and the pimples 8 uniformly provided on the bottom surface thereof; The hit-deforming projection 7 has an arcuate profile in its longitudinal section; The pimple (8) has a columnar structure and its bottom width is narrower than the top width of the support groove (6); 3, the upper and lower end surfaces of the pimple 8 are respectively provided with a spiral pattern 12 and a lower spiral pattern 13 toward the center of the pimple 8, And the lower spiral pattern (13) are opposite to each other.

The batting surface layer 2 is a rubber ball.

Example 2:

In Example 2, only the composition ratio of the upper fibrous layer 9 and the lower fibrous layer 11 was changed without changing the rubber structure. Specifically, 11 parts by weight of spandex, 5 parts by weight of butadiene rubber, 2 parts by weight of reinforcing agent.

Example 3:

In Example 2, only the combination ratio of components of the upper fibrous layer 9 and the lower fibrous layer 11 was changed without changing the rubber structure. Specifically, 7 parts by weight of spandex, 8 parts by weight of butadiene rubber, 1 part by weight of reinforcing agent.

As a result of performing the batting test separately for the table tennis racket rubber obtained by the above-mentioned three examples, the elasticity effect of Example 1 was the best and the batting effect retention time was the longest; The elastic effect of Example 2 was slightly lower than that of Example 1, and the duration of the batting effect was almost the same as that of Example 1. In Example 3, both of the indexes were slightly lower than those of Example 1, but were clearly superior to the conventional table tennis racket rubber.

Finally, the above embodiments are intended to illustrate the technical solution of the present invention but not to limit it. It will be understood by those of ordinary skill in the art that various modifications and equivalents may be resorted to, all without departing from the spirit and scope of the present invention .

1: elastic intermediate layer, 2: batting surface layer, 3: fibrous layer, 4: closed cell foam, 5: open cell foam, 6: support groove, 7: hitting deforming projection, 8: pimple, 9: Layer, 11: lower fiber layer, 12: upper spiral pattern, 13: lower spiral pattern.

Claims

A racquet facet adhesive layer, a flexible intermediate layer 1 and a hitting face layer 2 in this order;
The racquet side adhesive layer includes a fibrous layer 3, a closed cell foam 4 and an open cell foam 5, and the surface of the fibrous layer 3 is uniformly divided into a concave groove- The open cell foam 5 is evenly connected to the lower portion of the support groove 6 continuously and the closed cell foam 4 is connected to the open end of the closed cell foam 4, And the elastic modulus of the closed cell foam (4) is smaller than the elastic modulus of the open cell foam (5);
The flexible intermediate layer 1 is provided with a pair of pegs 8 uniformly on its top surface and a peg deforming projection 7 uniformly on the top surface thereof, The pimple (8) has a columnar structure and its bottom width is narrower than the top width of the support groove (6);
Wherein the batting surface layer (2) is a ball-hitting rubber.

The method according to claim 1,
Wherein the support grooves (6) have a longitudinal or semicircular shape, and the open cell foam (5) and the closed cell foam (4) form a spherical structure.

The method according to claim 1,
Wherein the support groove (6) has an inverted isosceles trapezoidal longitudinal section, and the open cell foam (5) and the closed cell foam (4) have a longitudinal section having a regular hexagonal structure.

The method according to claim 1,
The fibrous layer (3) has a laminated structure and includes a stratum corneum layer (9), a resilient layer (10) and a lower fibrous layer (11); The upper fibrous layer 9 and the lower fibrous layer 11 intersect each other; Wherein the elastic layer (10) is provided between the upper fibrous layer (9) and the lower fibrous layer (11).

5. The method of claim 4,
Wherein the composition of the upper fibrous layer (9) and the lower fibrous layer (11) and the mass percentage of each component are 7-11 parts by weight of spandex, 5-8 parts by weight of butadiene rubber, and 1-2 parts by weight of a viscosity reinforcing agent A table tennis racket rubber with stable return.

5. The method of claim 4,
Characterized in that the elastic layer (10) is made of linear polyethylene as a stick-like elastic filling material, and the stability of the tangle ball is secured.

The method according to claim 1,
Characterized in that the flexible intermediate layer (1) is woven with SAP fibers.

The method according to claim 1,
The pimples (8) have a columnar structure, and both upper and lower surfaces thereof are provided with a spiral pattern (12) and a lower spiral pattern (13) toward the center of the pimple (8) respectively; Wherein the upper spiral pattern (12) and the lower spiral pattern (13) are opposite to each other in pattern direction.