SU1537280A1

SU1537280A1 - Tennis racket

Info

Publication number: SU1537280A1
Application number: SU874321206A
Authority: SU
Inventors: Борис Михайлович Скрынников
Original assignee: Воронежский лесотехнический институт
Priority date: 1987-10-27
Filing date: 1987-10-27
Publication date: 1990-01-23

Abstract

Изобретение позвол ет повысить игровые качества ракетки. Она содержит обод 1, ветви которого св заны с руко ткой 2 через шеечную часть 3. Нат жное устройство 4 струн 5 включает каркас 6, винт 7 и гайку 8. Каркас расположен в шеечной части и выполнен в виде трапеции. Гайка выполнена удлиненной с крестообразными пазами на боковых гран х и размещена между основани ми трапеции 11, 12. В меньшем основании 11 установлен винт с возможностью поворота, а в большем 12 выполнены отверсти 13 дл прохода струн. Кроме того, на гайке выполнена опора дл струн в виде роликов 10, установленных диаметрально противоположно. 3 ил.The invention makes it possible to improve the playing qualities of a racket. It contains a rim 1, the branches of which are connected to the handle 2 through the cervical part 3. The tension device 4 of the strings 5 includes a frame 6, a screw 7 and a nut 8. The frame is located in the cervical part and is made in the form of a trapezium. The nut is made elongated with cross-grooves on the side edges and placed between the bases of the trapezoid 11, 12. In the smaller base 11 the screw is installed with the possibility of rotation, and in the larger 12 there are holes 13 for the passage of the strings. In addition, on the nut there is a support for the strings in the form of rollers 10, which are diametrically opposed. 3 il.

Description

Изобретение относитс к спорту, в частности к большому теннису.This invention relates to sport, in particular to tennis.

Цель изобретени - повышение эксплуатационных свойств.The purpose of the invention is to improve the performance properties.

На фиг. 1 - представлена ракетка,FIG. 1 - the racket is represented,

мещение гайки 8 по резьбе в сторону руко тки 2. В результате этого происходит нат жение струн 5. От нат жени вертикальных струн через обод 1 происходит увеличение нат жени поперечных струн. Описанный пример позвол ет регулировать нат жение двенадцати струн, взаимодействующих с гайкой. Такое количество регулируемых струн необходимо в ракетках с большой площадью струнной поверхности.The nut 8 is threadedly threaded toward the handle 2. As a result, the strings 5 are tensioned. The tension of the vertical strings through the rim 1 increases the tension of the transverse strings. The example described allows the tension of twelve strings interacting with the nut to be adjusted. Such a number of adjustable strings is necessary in rackets with a large area of the stringed surface.

общий вид; на фиг. 2 - нат жное устройство; на фиг. 3 - дополнительна опора винта; на фиг. 4 - то же, вариант.general form; in fig. 2 - tensioning device; in fig. 3 - additional screw support; in fig. 4 - the same, option.

Ракетка содержит обод 1, ветви которого св заны с руко ткой 2 через шеечнуюThe racket contains a rim 1, the branches of which are connected to the handle 2 through the cervical

часть 3. В шеечной части размещено на- Ю В ракетках с малой площадью достаточ- т жное устройство 4 струн 5, которое вклю- но регулирование нат жени восьми про- чает каркас 6, нат жной винт 7 и у дли- дольных струн.Part 3. In the cervical part there is a sufficient device 4 strings 5 on racquets with a small area, which includes regulation of tension eight holds frame 6, tension screw 7 and on long strings.

ненную гайку 8 с крестообразными пазами 9Изобретение позвол ет регулировать нана боковых гран х и с опорой дл струн т жение струн в диапазоне 5-35 кГс, обес- в виде роликов 10. Каркас выполнен в виде i5 печива необходимую жесткость ракетки за трапеции, между основани ми которой раз- счет дополнительной опоры винта, хорошие мещена указанна гайка, причем на меньшем основании 11 установлен с возможностью поворота винт, а большее основание 12 содержит отверсти 13 под струны и дополнительную опору 14 винта. Последн 20 может быть выполнена в виде винта 15Cross-grooved nut 8 9 The invention allows adjusting the side edges and string support for strings in the range of 5-35 kGs, in the form of rollers 10. The skeleton is made in the form of an i5 pot, the required stiffness of the racket beyond the trapezium, between the bases Which means the additional support of the screw, the specified nut is well placed, the screw on the smaller base 11 is rotatably mounted, and the larger base 12 contains holes 13 for the strings and the additional support of the screw 14. The last 20 can be made in the form of a screw 15

аэродинамические свойства и оказывает минимальное вли ние на балансировку ракетки , так как нат жной механизм размещен близко к ее центру нат жени .the aerodynamic properties and have a minimal effect on the balance of the racket, since the tensioning mechanism is located close to its center of tension.

Claims

Invention Formula

(Fig. 3), screwed into the tension screw 7, or in the form of a washer 16 and cotter pin 17 (Fig. 4). The central strings 18 and 19 pass through

A tennis racket containing a rim, the branches of which are connected to the grip through

the corresponding holes of the larger base, the neck part, placed in the last vanilla, the nut, bend around the role-tensioning device for the strings, turn on, pass through the holes of the base and form the strings 20 and 21. These strings,

rounding the rim apertures form strings 22 and 23, which bend around the rollers, a pair of screw-nuts, the screw of which is installed loosely in the frame, and the nut bears support for longitudinal strings, which, with increasing speed, will use the nut 8 to thread in side of the handle

2. As a result, the tension of the strings occurs 5. The tension of the vertical strings through the rim 1 increases the tension of the transverse strings. The example described allows the tension of twelve strings interacting with the nut to be adjusted. Such a number of adjustable strings is necessary in rackets with a large area of the stringed surface.

In racquets with a small area, it is sufficient to regulate the tension of eight long strings.

string stitching in the range of 5-35 kGs, providing the necessary rigidity of the racket due to the additional support of the screw, good

the aerodynamic properties and have a minimal effect on the balance of the racket, since the tensioning mechanism is located close to its center of tension.

runes in the range of 5-35 circumferential rigidity of the bearing support of the screw

Invention Formula

a pair of screw-nuts, the screw of which is installed loosely in the frame, and the nut bears support for the longitudinal strings, which is characterized by the fact that

go through the corresponding grooves with one of the positional properties, the framework of the tensioning system of the nut, through the holes of the base 12 and form the strings 24 and 25. After they are pulled through the holes of the rim and returning back, the strings 26 and 27 are formed which skirt the rollers and pass through

The ropes are made in the form of a trapezoid, the screw is installed in its smaller base with the possibility of centering in a larger base, the nut is made with cross-shaped grooves for the strings on two opposing free grooves of the nut and 35 spurious side faces exit and placed between the outer holes of the larger base of the trapezoid's bases and string support

form strings 28 and 29. performed in the form of rollers installed

The racket is used as follows. The edges of the nut, perpendicular to the gras, are initially set up slightly with grooves, while at the same time the tension of the strings is 18-29. When the frame is rotated, holes are made for the penetration of the tension screw 7, a transition of the strings takes place.

Rotions are made in the form of a trapezoid, the screw is installed in its smaller base with the possibility of centering in a larger base, the nut is made with cross grooves for the strings on two counterhoc 2S / y yy 0v.

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Fi.T

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FIG. 2

sixteen