RU2801032C1 - Table tennis racket base made in seven layers - Google Patents

Abstract

FIELD: sports equipment.

SUBSTANCE: invention is related in particular to the base of a table tennis racket, which promotes physical development and coordination of human movements.

EFFECT: technical result of the invention, which consists in improving the device, is achieved due to new elements and their new connections in the base of the racket, which made it possible to increase its technical characteristics, namely: to increase the stability of maintaining the speed and rotation of the ball over the entire striking surface of the base.

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Description

The invention relates to sports equipment, in particular, to the base of a table tennis racket, which promotes physical development and coordination of human movements.

Racket bases are known, containing layers of composite material under the first outer or second layers of wood: V-carbon (VC), carbon CF (carbon CF), aramid carbon (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber), TAMSA 5000, Super ZL Carbona, CAF (Control Assist Fiber). Carbon CF provides better control and durability than aramid (ARC) or V-carbon (VC). Very thin cellulose nanofiber CNF (Cellulose Nano Fiber) provides the base with low vibration and a feeling of holding the ball on the surface of the racket while maintaining high speed values. The TAMSA 5000 carbon fiber increases the stability and precision of the blades. Blades with SUPER ZLC fibers are fast, precise and have a natural touch, providing a fantastic feel for any game. The CAF (Control Assist Fiber) improves stability, accuracy and control of the base and ensures that the ball bounces evenly across the entire surface of the playing area. With the new Uniaxial Lightfastness (UFC) technology, all fibers are laid in the same direction, allowing Butterfly engineers to create a lighter Innerforce UFC carbon blade with no loss of speed and much more ball feel. Rackets containing layers of composite material from one or more materials are called composite rackets and are most suitable for effective play with a 40+ ball made from a new material [1].

Some of the most popular composite blades are Arylate Carbon (ALC) blades because:

1. ALC Composite blades cost a lot less than ZL Composite and Super ZL carbon blades with excellent quality.

2. Blades containing ALC composite material have a longer contact time between the ball and the racket, which gives them more control compared to the same or more rigid blades with other composite materials.

3. Most power players don't like blade vibration and therefore ALC composite blades are suitable for them as they have less vibration than the mentioned ZL composite materials or Super ZL carbons, which are better suited for ball spin play.

4. Blades with ALC composite material are preferred by amateurs and professionals due to their control, precision and quality [2, 3].

There is more use for blades with 7 layers using composites, in which the outer layers are made of hinoki wood (hinoki) or limba (limba) to increase the speed and rotation of the ball, or koto wood (koto) or fine line veneer (fineline) for an even greater increase in ball speed. An example of a blade with high speed and rotation is a blade with first layers of hinoki (hinoki) or koto (koto) and a central layer of kiri wood (kiri) - this is the Donic Persson Carbotec blade (koto - carbon / glass - tanne - kiri - tanne - carbon /glass-koto); base Butterfly Wiscaria (koto - Arylate-Carbon - limba - kiri -limba - Arylate-Carbon - koto), and the same materials are contained in the bases Butterfly Timo Boll ALC, Butterfly Timo Boll Spirit, Butterfly Zhang Jike. Bases with outer layers of limba wood or fineline veneer are also known - these are Butterfly Jun Mizutani (limba - zylon / carbon - limba - kiri - limba - zylon / carbon - limba); Joola Fever (limba - carbon meliorate - ayous - kiri - ayous - carbon meliorate - limba); Donic EPOX Powercarbon (fineline - carbon - ayous - kiri - ayous - carbon - fineline). [3, 4].

The disadvantage of most bases is the vibration of the edges of the base upon contact with the ball due to their insufficient rigidity, which reduces the area of the playing spot (the area of \u200b\u200bthe same rebound of the ball), associated with maintaining high speed and rotation of the ball on the playing part of the base.

Racket bases are known, containing a handle, a playing part, a central layer of wood and the first layers associated with it with an adhesive composition, which are external, under which one of the named layers of the composite is located: carbon (carbon), light carbon (soft carbon), arylite (Arylate), Arylate-Carbon, Acrylic Carbon (AC carbon), Hybrid Carbon (carbon CFL), Fiber, Carbon Fiber, Fiberglass, Zylon, Zylon-Carbon, Zylon-Fiber ( ZLF), Kevlar (Kevlar, Carbokev), Texalium, V-carbon (VC), carbon CF (carbon CF), aramid carbon (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber). Super ZL Carbona, TAMCA 5000, CAF (Control Assist Fiber), ULC, carbon glass (carbon / glass), and the base contains a strip vertically located to the wood layers from a radial cut of wood with a thickness of 0.8 ÷ 3.0 mm, width along the thickness of the base , with a density exceeding the density of the top layer of the base, which is glued to the end of the base to all base layers on both sides from the end of the game part opposite to the handle and reaches the beginning or end of the handle to increase the playing spot of the base by increasing the rigidity of the edges of the base and the base itself, and reducing vibrations of the edges of the base and the base itself upon contact with the ball [6, 7].

The technical result of the invention is to improve the racket base to increase its technical characteristics, namely, to increase the playing spot of the base and maintain the speed and rotation of the ball through the rational use of new technologies and materials.

The technical result is achieved due to new elements and their new connections in the base of the racket, namely: the base of the racket 1, containing the handle 2, the playing part - the central layer 3, the first outer layers 4 and the third layers 5 connected with them with an adhesive composition, between which one of the named layers of composite 6 is located: carbon (carbon), light carbon (soft carbon), arylight (Arylate), arylight-carbon (Arylate-Carbon), acrylic carbon (AC carbon), hybrid carbon (carbon CFL), fiber, fiber carbon, fiberglass (Fiberglass), zeylon (Zylon), zeylon-carbon (Zylon-Carbon), zeylon-fiber (ZLF), Kevlar (Kevlar, Carbokev), Texalium, V-carbon (VC), carbon CF (carbon CF) , aramid carbon (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber), Super ZL Carbona, TAMCA 5000, CAF (Control Assist Fiber), ULC, carbon glass (carbon/glass), the base contains a strip 7 of radial a cut of a tree with a thickness of 0.8÷3.0 mm, a width along the thickness of the base, with a density exceeding the density of the top layer of the base, which is glued to the end of the base to all layers of the base on both sides from the end of the playing part opposite to the handle to increase the playing spot of the base by increasing rigidity the edges of the base and reduce the vibration of the edges of the base when in contact with the ball, and the strip of the radial cut of the tree reaches the end of the playing spot, and the first layers 4 are made of koto wood (koto), the second layers 6 are made of composite, the third layers 5 are made of limba wood (limba), the central layer 3 is made of kiri wood (kiri): koto (koto) - composite - limba (limba) - kiri (kiri) - limba (limba) - composite - koto (koto).

Information sources

1. Composite materials: Carbon, Arylate - TTSPORT.RU table tennis.

2. What wood is your base made of and why? Wood species and their properties, https://ttennis-top.ru/

3. Inventory of professional table tennis players. https://www.propingpong.ru/equipment.php?gender=l

4. Butterfly ALC, ZLC, Super ZLC and other Butterfly carbon technologies, https://pingpong73.ru/ttblog/butterfy-alc-zlc-super-zlc/

5. Foundations. Brands, https://ttennis-top.ru/

6: Patent RU No. 2722491 C1, IPC А63В 59/00. Table tennis racket base. Tebenko Yu.M. - Application No. 2019133260. Appl. 10/17/2019, publ. 06/01/2020. Bull. No. 16.

7. Patent RU No. 2762638 C1, IPC A63V 59/00. Table tennis racket base. Tebenko Yu.M. - Application No. 2019133260. Appl. 01/12/2021, publ. 12/21/2021. Bull. No. 36.

List of figures in the drawing

In FIG. 1 shows a side view of the racket base.

In FIG. 2 shows section A of the base with a central layer of wood 3, with the first layers of wood 4, with third layers of wood 5, with composite layers 6, with a vertically located strip of wood 7.

Claims (1)

The base of the racket, containing the playing part, the handle, the central layer and the first outer layers associated with it with an adhesive, under which one of the named layers of the composite is located: carbon (carbon), light carbon (soft carbon), arylight (Arylate), arylight- carbon (Arylate-Carbon), acrylic-carbon (AC carbon), hybrid carbon (carbon CFL), fiber, fiber-carbon, fiberglass (Fiberglass), zeylon (Zylon), zylon-carbon (Zylon-Carbon), zeylon-fiber ( ZLF), Kevlar (Kevlar, Carbokev), Texalium, V-carbon (VC), carbon CF (carbon CF), aramid carbon (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber), Super ZL Carbona, TAMCA 5000, CAF ( Control Assist Fiber), ULC, carbon glass (carbon/glass), and the base contains a strip vertically located to the base layers of a radial cut of a tree with a thickness of 0.8 ÷ 3.0 mm, a width along the thickness of the base, a density exceeding the density of the top layer of the base, which glued to the end of the base to all layers of the base on both sides from the end of the playing part opposite to the handle to increase the playing spot of the base by increasing the rigidity of the edges of the base and reducing the vibration of the edges of the base upon contact with the ball, characterized in that the strip from the radial cut of the tree reaches the end of the playing spots, and the first layers are made of koto wood, the second layers are made of composite, the third layers are made of limba wood, and the central layer is made of kiri wood.

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