DE2737751A1 - Tennis racquet stringing - has polygonal cross=section with sharp edges to increase friction with ball - Google Patents

Abstract

The string is for tennis racquets, and instead of a circular cross-section, it has a multi-cornered cross section with sharp edges. The sharp edges increase friction between ball and string to contact, and cause the ball to execute a different curve relative to the normal flight path.

Description

Title:

Page for tennis racket tension. Field of application: The invention concerns one side for tennis racket coverings, which, different from the previous ones Sides with a round cross-section, a polygonal cross-section with sharp cross-sectional edges widening.

Purpose: The sharp cross-sectional edges should reduce the friction between Ball and string are raised at the moment of mutual contact, what the tennis player allowed by blows performed at an angle to the carrying side of the ball trajectory, the Ball a relatively strong rotation and movement relative to the normal trajectory to give what results in changed trajectory and changed up or jump behavior of the ball in the opposing field.

State of the art: Round using only sides Cross-section, the aforementioned purpose was achieved by including protruding Divide between the crossing points of the strings or criticize with double strings State-of-the-art: Strings with a round cross-section only allow very experienced players with many years of trained movement, the desired rotation or

Relative movement of the ball to tell.

For coverings with clamped parts or for double coverings on the other hand, a ban by the tennis associations is to be expected, or this ban is already ir. strength.

Task: Even weaker, less experienced tennis players should get through the registered string is given the opportunity to give the ball a different trajectory or to issue changed jumping and jumping behavior. The stronger player should be have the opportunity to increase this advantage by using the string.

Solution: Strings with a polygonal cross-section, especially on sharp ones Edges are cut.

Further embodiment of the invention: Is not necessary because the desired one Effect is already required with this string with the previously usual stringing; will can.

Achievable advantages: Considerably lower stringing costs compared to the previous methods + Description of several exemplary embodiments: Figure 1) string with rectangular or square cross-section Figure 2) string with square cross-section and concave flanks.

Figure 3) String with any cross-section and attached friction beads any number.

L e r s e i t e

Claims (1)

Claim: Training material for tennis rackets, characterized in that that the side has a polygonal cross-section instead of the previously usual round cross-section with sharp corners and edges.