FIELD: sportive technique.
SUBSTANCE: machine has racket retainer unit with rotary mechanism provided with longitudinal and transverse links equipped with stops having screw pairs for fastening of racket rim. Cross-shaped arrangement of transverse links is defined by additional links of rotary mechanism having independent stops and connected with one another through shaped planks. Self-tightening spring of string stretching unit is connected with its one end to stem of stretching force generating unit. Weight hanging ring is fixed in forced-action apparatus, at other end of spring. Bed of machine consists of two beams, one of said beams having shaped profile and being equipped with two supports and device for longitudinal displacement of one of said supports.
EFFECT: improved operating characteristics of machine aimed at preventing racket from breakage, reduced labor intensity, increased versatility and stability, and reduced weight and sizes of machine.
10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| 0 |
|
SU1784244A1 | |
| ARRANGEMENT FOR TIGHTENING STRINGS OF TENNIS RACKET | 0 |
|
SU1121016A1 |
| DEVICE FOR TIGHTENING STRINGS OF THE TENNIS RACKETS | 0 |
|
SU1839100A1 |
| DEVICE FOR TIGHTENING STRINGS OF TENNIS RACKET | 0 |
|
SU1804874A1 |
| FACILITY FOR TIGHTENING OF RACKET STRINGS, MAINLY OF TENNIS RACKET STRINGS | 0 |
|
SU1830259A1 |
| METHOD OF STRINGING RACQUETS | 0 |
|
SU1537124A3 |
| DEVICE FOR TIGHTENING STRINGS OF TENNIS RACKETS | 0 |
|
SU1804873A1 |
| APPLIANCE FOR TENSIONING STRINGS OF TENNIS RACKET | 0 |
|
SU1304829A1 |
| METHOD FOR TIGHTENING TENNIS STRING ONTO RACKET | 2008 |
|
RU2392024C2 |
| BENCH FOR TIGHTENING LONGITUDINAL STRINGS OF TENNIS RACKETS | 0 |
|
SU1736527A1 |
