RU2796136C1 - Table tennis racket base made with seven layers - Google Patents

Abstract

FIELD: sports equipment.

SUBSTANCE: invention relates to the base of a table tennis racket, which promotes physical development and coordination of human movements. The base contains a strip of a radial cut of wood, 0.8÷3.0 mm thick, vertically located to the base layers, with a density exceeding the density of the top layer of the base, with a width along the thickness of the base, which is glued to the end of the base to all layers of the base, starting from the end of the playing part opposite to the handle, and reaching the end of the base to increase the playing spot of the base by increasing the rigidity of the edges of the base and the base itself and the associated reduction in vibration of the edges of the base and the base itself upon contact with the ball, differs in that the first layers are made of fine line veneer (fine line), the second layers are made of limba wood, the central layer is made of wood kiri (kiri), between the second layers and the central layer there is a composite layer: fine line (fine line) - limba (limba) - composite - kiri (kiri) - composite - limba (limba) - fine line (fine line). The 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.

EFFECT: improving the device.

1 cl, 2 dwg

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 under the first outer or second layers of wood layers of a composite (composite material): 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 and Super ALC blades feature high speed, precision and 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 (ULC) technology, all fibers are laid in the same direction, allowing Butterfly engineers to create a lighter Innerforce ULC carbon blade without losing speed and with much more ball feel. Rackets containing composite layers of one or more materials are called composite rackets and are most suitable for effective play with a 40+ ball made of a new material [1].

Some of the most popular composite blades are Aryl-Ait Carbon (ALC) blades because:

1. Blades with ALC Composite cost much less than blades with ZL Composite and Super ZL Carbon with excellent quality.

2. Blades containing ALC composite have a longer ball-to-racquet contact time, which gives them more control compared to the same or harder blades with other composites.

3. Most players do not like the vibration of the blade, and therefore the blades with ALC composite are suitable for them, as they have less vibration than those with the mentioned ZL or Super ZL carbon composites.

4. Blades with ALC composite, thanks to their control, precision and quality, find their admirers among amateurs and professionals.

The most widely used blades are 7 ply blades (5 plies of wood and 2 plies of composite), in which the outer layers are made of hinoki wood to increase the speed and rotation of the ball, or koto wood to further increase the speed of the ball. An example of blades with high speed and rotation are 7-layer blades with the first layers of koto and a central layer of kiri wood (kiri) - these are Butterfly Wiscaria blades (koto - arylate / carbon - limba - kiri -limba - arylate carbon - koto), moreover, the same materials are also contained in the bases Butterfly Timo Boll ALC, Butterfly Timo Boll Spirit, Butterfly Zhang Jike [3, 4]. An example of such bases are bases - Butterfly Innerforce Layer ALC (limba - koto -arylate carbon - ayous - arylate carbon - koto - limba); Butterfly Innerforce Layer ALC. S. (koto - limba - arylate carbon - kiri - arylate carbon - limba - koto); Butterfly Innerforce ZLC (limba - limba - zylon carbon - ayous - zylon carbon - limba - limba); Butterfly Inner-force Layer ZLF (limba - ayous - ZLF - ayous - ZLF - ayous - limba); Butterfly Innerforce ULC (limba - limba - ultra-light carbon - ayous - ultralight carbon - limba - limba); Butterfly Innerforce Tamca 5000 (koto - limba - Tamca 5000 - kiri - Tamca 5000 - limba - koto); Butterfly Harimoto Tomokazu Innerforce Super ZLC (limba - limba - zylon carbon - ayous - zylon carbon - limba - limba); Friendship 729 Yellow Carbon ALC (limba - ayous - yellow ALC - tungwood - yellow ALC - ayous - limba).

Fine line material is also known, which is a budget analogue of natural veneer made from soft wood of plants such as African ayous (ayous) or Italian poplar (poplar). The material fineline (fine line), also called reconstructive veneer, was first used in the basis of the Cornilleau Aero OFF + Soft Carbon by the French company Cornilleau, which is successfully played in the Gauzy Simon championships for the French team.

The disadvantage of such bases, despite their high quality, is the excessive vibration of the edges of the base and the base itself upon contact with the ball due to their insufficient rigidity, which reduces the area of the same rebound of the ball, also called the area of \u200b\u200bthe playing spot, associated with maintaining high speed and rotation. ball on the playing part of the base.

Known racket base with the formula of the invention:

1. The base of the racket, containing the playing part, the handle, the central layer and the first - outer - and second layers of wood associated with them with an adhesive composition, including one of the named layers of composite material under the first or second layers of wood: carbon (carbon), light carbon (soft carbon), arylite (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, and the base contains a strip vertically located to the layers of wood from a radial cut of wood with a thickness of 0.8 ÷ 3.0 mm, with a density not less than the density of the top layer of the base, which is glued to the end of the base to all layers, starting from the end of the playing part opposite to the handle, and reaching the end of the handle to increase the playing spot of the base by increasing the rigidity and the associated reduction in vibration of the edges of the base and the base itself upon contact with the ball , characterized in that the first layers are made of hinoki wood (hinoki), the second layers are made of limba wood (limba), and the central layer is made of kiri wood (kiri), and under the first or second layers of wood are located in addition to the named layers of composite materials one of the layers of composite material: 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 .

2. The racket base according to claim 1, characterized in that the first layers are made of koto wood.

3. The base of the racket according to paragraphs. 1, 2, characterized in that the central layer is made of ayous wood. [5].

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 contains the playing part 1, the handle 2, the central layer of the tree 3 and the first outer layers of the tree 4 and the second layers of the tree 5 connected with them with an adhesive composition, in including under the second layers of wood 5 on the central layer of wood 3 one of the layers of composite 6: carbon (carbon), light carbon (soft carbon), arylite (Arylate), arylight-carbon (Arylate-Carbon or ALC), acrylic carbon ( AC carbon), hybrid carbon (carbon CFL), fiber, fiber carbon, fiberglass (Fiberglass), zeylon (Zylon), zeylon-carbon (Zylon-Carbon or ZLC), zeylon-fiber (ZLF), kevlar (Kevlar, Carbokev), Texalium, V-carbon (VC), carbon CF (carbon CF), aramid carbon (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber), TAMCA 5000, CAF (Control Assist Fiber), Super ZL Carbona, ULC,Carbon fleece, Energy carbon, Carbotox, Aratox, Aratox RS, Super ALC, and the base contains a strip 7 vertically located to the base layers from a radial cut of a tree with a thickness of 0.8 ÷ 3.0 mm, a density exceeding the density of the upper base layer, width in thickness base, which is glued to the end of the base to all layers of the base, starting from the end of the game part opposite to the handle and reaching the end of the base handle to increase the playing spot of the base by increasing the rigidity of the edges of the base and the base itself and, as a result, reducing the vibration of the edges of the base and the base itself upon contact with a ball. In this case, the first layers are made of fine line veneer (fineline), the second layers are made of limba wood (limba), the central layer is made of kiri wood: fineline (fineline) - limba (limba) - composite - kiri (kiri) - composite - limba (limba) - fine line (fineline),

Information sources

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

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

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

4. Table tennis bases known to me.

5. Patent RU No. 2762638 C1, IPC A63V 59/00. Table tennis racket base. Tebenko Yu.M. - Application No. 20211000465. Claimed 01/12/2021, published 12/21/2021. Bulletin No. 36.

List of figures in the drawing

In FIG. 1 shows a section of the base of the racket with the playing part 1, the handle 2.

In FIG. 2 shows section A of the base with the central layer of wood 3, the first layers of wood 4, the second layers of wood 5, the composite layers 6, the strip of wood 7 vertically positioned and glued to all the layers of the base.

Claims (1)

The base of the racket, containing the playing part, the handle, the central layer and the first - outer - and second layers of wood connected with it with an adhesive composition, including one of the layers of the composite under the second layers of wood: carbon (carbon), light carbon (soft carbon) , arylite (Arylate), arylight-carbon (Arylate-Carbon or ALC), acrylic carbon (AC carbon), hybrid carbon (carbon CFL), fiber, fiber-carbon, fiberglass (Fiberglass), zeylon (Zylon), zeylon-carbon ( 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), TAMCA 5000, CAF (Control Assist Fiber), Super ZL Carbona, ULC, Carbon fleece, Energy carbon, Carbotox, Aratox, Aratox RS, Super ALC, and the base contains a strip of a radial cut of a tree with a thickness of 0 vertically located to the base layers .8 ÷ 3.0 mm, with a density exceeding the density of the upper layer of the base, with a width along the thickness of the base, which is glued to the end of the base to all layers of the base, starting from the end of the playing part opposite to the handle, and reaches the end of the base to increase the playing spot of the base by increasing stiffness of the edges of the base and the base itself and the associated reduction in vibration of the edges of the base and the base itself upon contact with the ball, characterized in that the first layers are made of fine line veneer (fine line), the second layers are made of limba wood, the central layer made of kiri wood (kiri), between the second layers and the central layer there is a layer of composite: fine line (fine line) - limba (limba) - composite - kiri (kiri) - composite - limba (limba) - fine line (fine line) .

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