WO1981001797A1 - Guts for tennis rackets and similar games - Google Patents
Guts for tennis rackets and similar games Download PDFInfo
- Publication number
- WO1981001797A1 WO1981001797A1 PCT/CH1980/000155 CH8000155W WO8101797A1 WO 1981001797 A1 WO1981001797 A1 WO 1981001797A1 CH 8000155 W CH8000155 W CH 8000155W WO 8101797 A1 WO8101797 A1 WO 8101797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- string according
- string
- core
- guts
- wire
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
- A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
Definitions
- the invention relates to a string for stringing rackets for tennis and related games, such as badminton and squash.
- a metal covering is far less sensitive to the effects of the weather, besides it has a higher tensile strength and is therefore more durable. It retains constant flexibility and resilience even under heavy use. A sufficiently high elasticity of the covering can also be achieved with the available wire materials. Finally, the metal covering rather cheaper to manufacture.
- the use of stranded, stranded or twisted metal wire gives the covering a relatively rough surface, which makes it possible to hit the ball with a high twist effect.
- the surface structure can be changed by using different string constructions. There is therefore also the possibility of making the covering less easy to grip, for example in order to prevent the balls from wearing out too quickly. In this sense, it may also be advantageous to provide the metal wire with a plastic sheath.
- the string preferably has a core made of a material which is several times more elastic than the wire material, in order to increase the extensibility of the string.
- Plastic is the primary material for the soul, e.g. Polyamide, in question.
- the string has a plastic core, the diameter of which is greater than the thickness of the metal wire and which is tightly wrapped with several round, parallel metal wires in the form of a multi-start coil spring.
- the ratio of diameters and the number of metal wires By choosing the ratio of diameters and the number of metal wires, the elasticity of the string can be changed within wide limits and adapted to the respective requirement. Similar elasticity values as for a conventional gut string can be achieved, for example, with a metal string of this type, the plastic core of which has a diameter of 0.7 mm and is wound with six steel wires, the diameter of which is 0.28 mm. With a larger number of metal wires running in parallel, there is a greater increase in the wire windings and thus a lower elasticity.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Ropes Or Cables (AREA)
- Artificial Filaments (AREA)
- Laminated Bodies (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Package Frames And Binding Bands (AREA)
- Developing Agents For Electrophotography (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR8008989A BR8008989A (pt) | 1979-12-22 | 1980-12-11 | Corda para tensionar raquetes de tenis e esportes afins |
MC80CH8000155D MC1402A1 (fr) | 1979-12-22 | 1980-12-11 | Une corde pour le cordage de raquettes de tennis ou de jeux similaires |
AU65749/80A AU6574980A (en) | 1979-12-22 | 1980-12-11 | Guts for tennis rackets and similar games |
FI812482A FI812482L (fi) | 1979-12-22 | 1981-08-11 | Straeng foer spaennande av tennisracketar och liknande |
DK370581A DK370581A (da) | 1979-12-22 | 1981-08-21 | Streng til tennis og lignende ketsjere |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH11377/79 | 1979-12-22 | ||
CH1137779 | 1979-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1981001797A1 true WO1981001797A1 (en) | 1981-07-09 |
Family
ID=4372922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1980/000155 WO1981001797A1 (en) | 1979-12-22 | 1980-12-11 | Guts for tennis rackets and similar games |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0041962A1 (no) |
JP (1) | JPS56501788A (no) |
KR (1) | KR830003912A (no) |
BE (1) | BE886530A (no) |
BR (1) | BR8008989A (no) |
DD (1) | DD155388A5 (no) |
ES (1) | ES264639Y (no) |
GR (1) | GR72806B (no) |
IT (1) | IT1134801B (no) |
NO (1) | NO812807L (no) |
PL (1) | PL228604A1 (no) |
PT (1) | PT72257B (no) |
RO (1) | RO82237B (no) |
WO (1) | WO1981001797A1 (no) |
ZA (1) | ZA807362B (no) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994021332A1 (en) * | 1993-03-17 | 1994-09-29 | Kosmin, Gerald, Emmanuel | Sports racket string |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4216739A1 (de) * | 1992-05-21 | 1993-11-25 | Vontec | Saite zum Bespannen von Ballschlägern |
CN109331436A (zh) * | 2018-11-24 | 2019-02-15 | 邬惠林 | 有一定弹性的羽毛球钢丝拍线 |
JP2021168818A (ja) * | 2020-04-16 | 2021-10-28 | 朝日インテック株式会社 | ラケット用ストリングおよびラケット |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR490371A (fr) * | 1918-06-04 | 1919-04-19 | Seneca Green Lewis | Réseau de corde pour raquettes et objets analogues |
FR550656A (fr) * | 1921-09-06 | 1923-03-15 | Perfectionnements apportés aux raquettes pour jeu de paume, lawn tennis et autres jeux analogues | |
GB199840A (en) * | 1922-04-03 | 1923-07-03 | William Augustus Larned | Improvements in tennis rackets and the like |
US1531862A (en) * | 1922-01-30 | 1925-03-31 | Dayton Steel Racquet Company | Metal stringing for tennis rackets |
CH278315A (de) * | 1948-04-24 | 1951-10-15 | Lycon As | Mehrere miteinander verwundene Stränge aufweisende Metallsaite. |
DE1150913B (de) * | 1959-11-05 | 1963-06-27 | Vojtech Vodicka | Stahlarmierte Saite fuer Ballschlaeger |
DE2449479A1 (de) * | 1974-10-19 | 1976-04-22 | Lipa Lizenz Und Patentverwertu | Darmsaiten fuer ballschlaeger |
DE2651659A1 (de) * | 1976-11-12 | 1978-05-18 | Ruediger Lothar Von Di Reppert | Verfahren zur herstellung beschichteter tennissaiten |
-
1980
- 1980-11-26 ZA ZA00807362A patent/ZA807362B/xx unknown
- 1980-12-05 BE BE0/203072A patent/BE886530A/fr unknown
- 1980-12-11 EP EP80902275A patent/EP0041962A1/de not_active Withdrawn
- 1980-12-11 JP JP50007680A patent/JPS56501788A/ja active Pending
- 1980-12-11 BR BR8008989A patent/BR8008989A/pt unknown
- 1980-12-11 WO PCT/CH1980/000155 patent/WO1981001797A1/de not_active Application Discontinuation
- 1980-12-17 DD DD80226202A patent/DD155388A5/de unknown
- 1980-12-18 GR GR63702A patent/GR72806B/el unknown
- 1980-12-19 PL PL22860480A patent/PL228604A1/xx unknown
- 1980-12-19 ES ES1980264639U patent/ES264639Y/es not_active Expired
- 1980-12-19 PT PT72257A patent/PT72257B/pt unknown
- 1980-12-19 IT IT26773/80A patent/IT1134801B/it active
- 1980-12-22 KR KR1019800004887A patent/KR830003912A/ko unknown
-
1981
- 1981-08-19 RO RO105131A patent/RO82237B/ro unknown
- 1981-08-20 NO NO812807A patent/NO812807L/no unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR490371A (fr) * | 1918-06-04 | 1919-04-19 | Seneca Green Lewis | Réseau de corde pour raquettes et objets analogues |
FR550656A (fr) * | 1921-09-06 | 1923-03-15 | Perfectionnements apportés aux raquettes pour jeu de paume, lawn tennis et autres jeux analogues | |
US1531862A (en) * | 1922-01-30 | 1925-03-31 | Dayton Steel Racquet Company | Metal stringing for tennis rackets |
GB199840A (en) * | 1922-04-03 | 1923-07-03 | William Augustus Larned | Improvements in tennis rackets and the like |
CH278315A (de) * | 1948-04-24 | 1951-10-15 | Lycon As | Mehrere miteinander verwundene Stränge aufweisende Metallsaite. |
DE1150913B (de) * | 1959-11-05 | 1963-06-27 | Vojtech Vodicka | Stahlarmierte Saite fuer Ballschlaeger |
DE2449479A1 (de) * | 1974-10-19 | 1976-04-22 | Lipa Lizenz Und Patentverwertu | Darmsaiten fuer ballschlaeger |
DE2651659A1 (de) * | 1976-11-12 | 1978-05-18 | Ruediger Lothar Von Di Reppert | Verfahren zur herstellung beschichteter tennissaiten |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994021332A1 (en) * | 1993-03-17 | 1994-09-29 | Kosmin, Gerald, Emmanuel | Sports racket string |
Also Published As
Publication number | Publication date |
---|---|
GR72806B (no) | 1983-12-05 |
DD155388A5 (de) | 1982-06-09 |
ES264639U (es) | 1982-11-16 |
PT72257A (en) | 1981-01-01 |
RO82237B (ro) | 1984-07-30 |
BR8008989A (pt) | 1981-10-20 |
PL228604A1 (no) | 1981-08-21 |
RO82237A (ro) | 1984-05-23 |
ES264639Y (es) | 1983-05-16 |
IT8026773A0 (it) | 1980-12-19 |
IT1134801B (it) | 1986-08-20 |
NO812807L (no) | 1981-08-20 |
ZA807362B (en) | 1981-11-25 |
BE886530A (fr) | 1981-04-01 |
JPS56501788A (no) | 1981-12-10 |
EP0041962A1 (de) | 1981-12-23 |
PT72257B (en) | 1982-01-21 |
KR830003912A (ko) | 1983-06-30 |
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