FIELD: health, sports.
SUBSTANCE: tennis racket includes handle, transition part and rim with net, which consists of strings crossed in triangle tops by three. Strings cross at the angle of 60 degrees in the order, which realises various combinations of strings in tops of each cell with side equal to 16-20 diametres of string, with total number of combinations equal to 3 or 6.
EFFECT: using invention makes it possible to improve stiffness of net with reduction or preservation of strings tension, to increase strength of net with preservation of net aerodynamic properties, to prolong service life due to their stabilisation in net units and to improve friction contact of net and ball.
3 cl, 16 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TENNIS RACKET | 2010 |
|
RU2411979C1 |
| TENNIS RACKET | 2009 |
|
RU2386465C1 |
| 0 |
|
SU1784244A1 | |
| DEVICE FOR DETERMINATION OF DYNAMICA PROPERTIES OF SPORTS GEAR | 2008 |
|
RU2370296C1 |
| TENNIS RACKET | 1995 |
|
RU2113877C1 |
| MACHINE FOR STRETCHING OF TENNIS RACKET STRINGS | 2006 |
|
RU2314851C1 |
| FACILITY FOR TIGHTENING OF RACKET STRINGS, MAINLY OF TENNIS RACKET STRINGS | 0 |
|
SU1830259A1 |
| DEVICE FOR TIGHTENING STRINGS OF TENNIS RACKET | 0 |
|
SU1804874A1 |
| APPLIANCE FOR TENSIONING STRINGS OF TENNIS RACKET | 0 |
|
SU1304829A1 |
| ARRANGEMENT FOR TIGHTENING STRINGS OF TENNIS RACKET | 0 |
|
SU1121016A1 |
