SU1576173A1 - Racket for sport games - Google Patents

Racket for sport games Download PDF

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Publication number
SU1576173A1
SU1576173A1 SU874333869A SU4333869A SU1576173A1 SU 1576173 A1 SU1576173 A1 SU 1576173A1 SU 874333869 A SU874333869 A SU 874333869A SU 4333869 A SU4333869 A SU 4333869A SU 1576173 A1 SU1576173 A1 SU 1576173A1
Authority
SU
USSR - Soviet Union
Prior art keywords
rim
racket
strings
tension
working plane
Prior art date
Application number
SU874333869A
Other languages
Russian (ru)
Inventor
Николай Николаевич Цвилынюк
Original Assignee
Н„Н.Цвилынюк
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Н„Н.Цвилынюк filed Critical Н„Н.Цвилынюк
Priority to SU874333869A priority Critical patent/SU1576173A1/en
Application granted granted Critical
Publication of SU1576173A1 publication Critical patent/SU1576173A1/en

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Abstract

Изобретение позвол ет повысить быстродействие и равномерность нат жени  струн. Обод ракетки с нат нутой струнной сеткой выполнен из материала, обладающего эффектом пам ти формы. Дл  смены струн и их нат жки обод нагревают. Он уменьшаетс  по длине. Небольшим усилием производ т нат жку струн. При остывании обода его форма и размеры восстанавливаютс , т.е. увеличиваютс  и обеспечивают нат жку струн.The invention allows to increase the speed and uniform tension of the strings. The rim of a racket with a tight stringed net is made of a material that has a shape memory effect. To change the strings and their tension, the rim is heated. It is reduced in length. A small force is used to tension the strings. When the rim cools, its shape and dimensions are restored, i.e. increase and provide string tension.

Description

Изобретение относитс  к спортивному инвентарю.This invention relates to sports equipment.

Целью изобретени   вл етс  повышение быстродействи  и равномерности нат жени  струн.The aim of the invention is to increase the speed and uniform tension of the strings.

Ракетка содержит руко тку и св занную с ней рабочую плоскость, включающую обод с нат нутой струнной сеткой и элемент дл  изменени  площади рабочей плоскости, выполненный за одно целое с ободом, при этом последний выполнен из материала, обладающего эффектом пам ти формы, например из никелида титана ТН-1.The racket contains a handle and a working plane associated with it, including a rim with a tensioned string grid and an element for changing the area of the working plane, which is made in one piece with the rim, the latter being made of a material with a shape memory effect titanium TH-1.

При необходимости произвести нат жку ракетки обод нагревают при 60°С. Обод уменьшаетс  по длине.Производ т нат жку струн под действием небольшого усили , например, веса кисти руки. При остывании обода до 40°С ему возвращаютс  прежн   формаIf necessary, the racket is tensioned and the rim is heated at 60 ° C. The rim is reduced in length. The string is tensioned by a small force, such as the weight of a hand. When cooling the rim to 40 ° C, it returns to its former form.

и длина. Это ведет к нат жению струн с заданной силой нат жени , что и способствует равномерной нат жке . струн, быстродействию этой операции без применени  значительных мышечных усилий.and length. This leads to tension of the strings with a given tension force, which contributes to uniform tension. strings, the speed of this operation without the use of significant muscular effort.

Claims (1)

Формула изобретени Invention Formula Ракетка дл  спортивных игр, содержаща  руко тку и св занную с ней рабочую плоскость, включающую обод с нат нутой струнной сеткой и элемент дл  изменени  площади рабочей плоскости , отличающа с  тем, что, с целью обеспечени  быстродействи  и равномерности нат жени  струн, элемент дл  изменени  площади рабочей плоскости выполнен за одно целое с ободом, при этом последний выполнен из материала, обладающего эффектом пам ти формы.A racket for sports games, containing a handle and a working plane associated with it, including a rim with a tensioned string net and an element for changing the area of the working plane, characterized in that, in order to ensure the speed and uniform tension of the strings, the element for changing the areas of the working plane are made in one piece with the rim, while the latter is made of a material having a shape memory effect. «" (Л(L СПSP чh СЭSE JJ соwith
SU874333869A 1987-11-25 1987-11-25 Racket for sport games SU1576173A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874333869A SU1576173A1 (en) 1987-11-25 1987-11-25 Racket for sport games

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874333869A SU1576173A1 (en) 1987-11-25 1987-11-25 Racket for sport games

Publications (1)

Publication Number Publication Date
SU1576173A1 true SU1576173A1 (en) 1990-07-07

Family

ID=21338474

Family Applications (1)

Application Number Title Priority Date Filing Date
SU874333869A SU1576173A1 (en) 1987-11-25 1987-11-25 Racket for sport games

Country Status (1)

Country Link
SU (1) SU1576173A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент US Р 3904202, кл. А 63 В 51/12, 1978. *

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