Racket having strings which pass over rockable tension transmitt

Details Racket having strings which pass over rockable tension transmitt Racket having strings which pass over rockable tension transmitt

1984-11-14

1986-05-27

Pinkham, Richard C.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

A63B 4900

Patent

active

045911657

ABSTRACT:
The present invention makes use of tension transmitting device between an outward head frame surface and string chords such that tension along one string chord can be transmitted through the tension transmitting device to the next adjacent string chord. Transmission of tension allows strain energy to be stored in several string chords instead of only those directly contacted by the impacting object. This results in larger string deflection with a smaller increase in string tension. A first form of the tension transmitting device is an independent rocker member that can be received between the string as it wraps over the outer racket head surface between adjacent holes. The rockers receive the string along top rocker surfaces. Bottom rocker surfaces are substantially cylindrical for friction-free rocking engagement against the outer surface of the racket head frame. Tension applied along one of the string chord segments will therefore be directly transmitted through rocking motion of the rocker device to the adjacent string chords throughout the entire string length.

REFERENCES:
patent: 1470878 (1923-10-01), Robinson
patent: 1523865 (1925-01-01), Craig
patent: 1559986 (1925-01-01), Quick
patent: 3999756 (1976-12-01), Head
patent: 4118029 (1978-10-01), Septier
patent: 4185822 (1980-01-01), Li
patent: 4203597 (1980-05-01), Reedhead et al.
patent: 4441712 (1984-04-01), Guthke
patent: 4462592 (1984-07-01), Legger et al.

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