RU2762638C1 - Base of table tennis racket - Google Patents

Abstract

FIELD: sports equipment.

SUBSTANCE: invention relates to sports equipment, in particular to a base of a table tennis racket, which promotes physical development and coordination of human movements. The racket base contains a playing part, a handle, the central layer and the first – outer – layers and the second layers of wood connected to them with an adhesive composition, it also contains, under the first or the second layers of wood, one of named layers of composite material: carbon, soft carbon, Arylate, Arylate-Carbon, acrylic carbon (AC carbon), hybrid carbon (carbon CFL), fiber, fiber-carbon, Fiberglass, Zylon, Zylon-Carbon, Zylon-fiber (ZLF), Kevlar (Kevlar, Carbokev), Texalium, wherein the base contains a strip of a radial cut of wood with a thickness of 0.8÷3.0 mm, vertically located to layers of wood, with a density of no less than a density of the upper layer of the base, which is glued to the end of the base to all layers, beginning from the end of the playing part opposite to the handle, and which reaches the end of the handle to increase the playing spot of the base by increasing rigidity and related reduction in vibration of edges of the base and the base itself in contact with the ball, characterized in that the first layers are made of hinoki wood, the second layers are made of limbo wood, and the central layer is made of kiri wood, wherein, under the first or the second layers of wood, in addition to named layers of composite materials, one of layers of composite material is located: V-carbon (VC), carbon CF, Aramid carbon (ARC), Cellulose Nano Fiber CNF, Super ZL Carbona, TAMCA 5000, CAF (Control Assist Fiber), ULC.

EFFECT: improving the device due to new elements and their new connections in the base of the racket, which make it possible to increase its technical characteristics, namely, to increase the stability of maintaining the speed and rotation of the ball over the entire impact surface of the base.

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Description

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

Known racket bases containing under the first (outer) or second layers of wood, or around the central layer of wood layers of composite material: V-carbon (VC), carbon CF (carbon CF), carbon aramid (ARC), cellulose nanofiber CNF (Cellulose Nano Fiber), TAMSA 5000, Super ZL Carbona, CAF (Control Assist Fiber). Carbon CF (Carbon CF) provides better control and reliability compared to Aramid (ARC) or V-carbon (VC). The very thin cellulose nanofiber CNF (Cellulose Nano Fiber) provides the base with low vibration and the feeling of holding the ball on the surface of the racket while maintaining high speeds. TAMSA 5000 carbon fiber increases the stability and accuracy of the blades. Blades with SUPER ZLC fibers feature high speed, precision and natural touch for a fantastic feel for any topspin game. Control Assist Fiber (CAF) enhances stability, precision and control of the base and ensures uniform ball bounce throughout the playing area. The new Uniaxial Lightfast Technology (ULC) stacks all fibers in one direction, allowing Butterfly engineers to create a lighter Innerforce ULC carbon blade without sacrificing speed and with much more ball feel. Rackets containing layers of composite material of one or more materials are called composite and are most suitable for effective play with a 40+ ball made of the new material. [one].

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

1. Blades with ALC composite material cost much less than blades with composites ZL and Super ZL carbons with excellent quality.

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

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

4. Bases with ALC composite material, thanks to their control, precision and quality, find their admirers among amateurs and professionals (Timo Boll, Tomokazu Harimoto, Robert Gardosh, Anton Kallberg, Alexander Shibaev, etc.). [2, 3]

The most widely used blades are 5 and 7 layers using composite materials, in which the outer layers are made of hinoki wood to increase the speed and rotation of the ball, or koto wood to increase the speed of the ball even more. An example of blades with high speed and spin is a blade with first layers of hinoki or koto and a center layer of kiri wood - this is a Butterfly Kong Linghui Special blade with 5 layers of material (hinoki - arylate / carbon - kiri - arylate / carbon - hinoki) , Butterfly Garaydia base (hinoki - arylate / carbon - kir - arylate / carbon - hinoki); 7-layer Butterfly Wiscaria blade (koto - arylate / carbon - limba - kiri - limba - arylate / carbon - koto), the same materials found in Butterfly Timo Boll ALC, Butterfly Timo Boll Spirit, Butterfly Zhang Jike blades. [4, 5]

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

Known racket bases containing a handle, a playing part, a central layer of wood and the first, second and so on layers of wood associated with it with an adhesive composition, while the base contains layers of one of the composite materials under the first or second layers of wood: carbon, light carbon fiber (soft arylate, arylate-carbon), acryl 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 of radial wood cut vertically located to the layers of wood with a density of no less than the density of the top layer of the base, 0.8 ÷ 3.0 mm thick , with a height equal to the thickness of the base, with a length starting from the end of the playing part opposite to the handle to the end of the handle on both sides of the base, which is glued to the end of the base to all layers of the base to increase the area of the playing spot of the base by increasing the rigidity and the associated decrease in vibration of the edges of the base when in contact with the ball. [6].

The technical result of the invention is to improve the racket base to increase its technical characteristics, namely, to increase the playing surface 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 at the base of the racket, namely: the base contains a playing part 1 155 ÷ 160 mm long, 150 ± 2 mm thick, 4.5 ÷ 10 mm thick, handle 2 60 ÷ 100 mm long, central layer 3 of wood, the first 4 and second 5 layers of wood connected to them with an adhesive. The direction of the fibers of the central layer of wood 3 and the first layers of wood 4 are performed longitudinally along the length of the base, and the second layers of wood 5 - across the length of the base. In this case, the base contains under the first or under the second layers of wood one of the layers of composite material: carbon, soft carbon, Arylate, Arylate-Carbon, carbon acrylic (AC carbon), Carbon CFL, Fiber, Fiber Carbon, Fiberglass, Zylon, Zylon-Carbon, Zeylon Fiber (ZLF), Kevlar (Kevlar, Carbokev), Texalium or other composite layers in the form of fibers of one or a grid of several materials, and the base contains a strip 7 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 first layer 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 to the 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 associated with it; reducing vibration of the edges of the base and the bases itself ania on contact with the ball. In this case, the first layers are made of hinoki or koto wood, the second layers are made of limba wood, the central layer is made of kiri or ayous wood, and under the first or second layers, in addition to the above layers of composite material contains one of the layers of composite material: V-carbon (VC), carbon CF (carbon CF), aramid carbon (ARC), cellulose nanofibers CNF (Cellulose Nano Fiber), TAMSA 5000, CAF (Control Assist Fiber) , Super ZL Carbona, ULC.

Sources of information

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

4. Butterfly ALC, ZLC, Super ZLC and other carbon technologies from Butterfly, 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. Declared 10/17/2019, published 06/01/2020. Bulletin. No. 16.

Claims (3)

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 them with an adhesive composition, including contains under the first or second layers of wood one of the named layers of composite material: carbon, soft carbon, Arylate, Arylate-Carbon, AC carbon, carbon CFL, fiber, fiber-carbon, Fiberglass, Zylon ), zeylon-carbon (Zylon-Carbon), zeylon-fiber (ZLF), Kevlar (Kevlar, Carbokev), Texalium, and the base contains a strip of radial cut of wood with a thickness of 0.8 ÷ 3.0 mm vertically located to the layers of wood, 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 reaches the end of the handle to increase the playing spot of the base by increasing the rigidity and the associated reduction of edge vibration the base and the base itself in contact with the ball, characterized in that the first layers are made of hinoki wood, the second layers are made of limba wood, and the central layer is made of kiri wood, 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 base of the racket according to claim 1, wherein the first layers are made of koto wood. 3. The base of the racket according to PP. 1, 2, characterized in that the central layer is made of ayous wood.

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