DE2731615A1 - Plastics- or rubber-foam coating for tennis racket strings - applied by immersion or spraying, and treated with serrated rollers after setting - Google Patents

Abstract

The parent patent described mfr. of coated tennis racket strings (which may consist of natural gut, plastics, twins or wire) by applying >=1 layer of soft, pref. foamed, plastics or synthetic or natural rubber, by immersion oating. In this adn. coating is effected, with the racket ready-strung, by immersing the whole racket whose frame has previously been wrapped into an easily detachable adhesive tape, into the coating soln. Alternatively, coating is carried out by spraying coating soln., before stringing the racket, onto the strings until the coating has the desired thickness, and then roller-treating the gradually setting coating with a serrated roller. The treatment confers adequate roughness to the strings.

Description

"Process for the production of coated tennis strings"

"Addition to patent ... (patent application P 26 51 659.6) The patent ... (patent application P 26/51 659.6) describes a process for the production of coated Tennis strings, with core strings made of gut, plastics, cord or wire one or more layers of soft plastics, preferably in the dipping process foamed synthetic resins, made of natural or artificial rubber, preferably foam rubber, be applied.

It was also found that the production of the layered strings with or even without their surveys on fully covered tennis rackets themselves Immerse the nit "tesa @ krepp" or another, easily peelable plastic adhesive tape covered racket frame in the concerned.

Solutions or by spraying them one or more times or Spread on the core strings made of gut, plastic or steel wire to the desired layer thickness and then roll over with a serrated Roll over the gradually solidifying or hardening layer on the string surface he follows.

Thereby ç normal racket stringing can also be done with 2 different striking surfaces are provided in the catfish that doing one side of the two striking surfaces the invention has applied elevations, while the other side untreated or smooth ll-ibt or by another arrangement or another Appearance of the raised elevations, also other effects, including cracks the balls hit with it.

The one or more times spraying or brushing on the The layer to be applied to the core string surface can either be done with a "spray can" or a "bottle with a brush" made by everyone in a particularly simple manner will.

Example 1 A synthetic super polyamide string 0.5 mm in diameter Stringed tennis racket is dipped in the lbah:; en of the racket covered with "tesa crepe", which is applied by immersion after solidification Layer is peeled off again - with a superpolyamide solution to a diameter brought by 1.5 mm.

A serrated hand roller is rolled over the gradually solidifying layer of the racket covering treated in this way until all the strings are covered with cherelike dents, which are then allowed to harden. : e (SV StlrMin-o «ei ì e many of these stringings, which, due to the thicker strings than usual, give a little when struck and also form a rough surface.

Example 2 A 0.3 mm steel string is first connected to a metal adhesive plastic adhesive and then treated several times on all sides with a Later solution until they are coated with a layered string including the steel core string 1 mm in diameter. Over this latex coating on the steel string you roll again, as described in Example 1, on one of the two striking surfaces the hand spiked roller and thus again produced elevations on it, while the did leaves the other face smooth or untreated.

If you play with one of these, from 2 different playing surfaces existing tennis racket and turns the racket while playing, so a very varied game can be achieved with it.

Example 3 tie the surface of the two striking surfaces of one in the dipping process Gut string racket treated according to Example 1, after removal of the racket frame covering plastic adhesive tape, rolled over with 2 different types of rollers, after which one of the two playing surfaces e.g.

has hump-like elevations and the others e.g. @ursten-like elevations.

Playing with such a racket enables constant changes in stroke type, strength and repeatedly different ball bounce.

Claims (2)

Claims 1) Process for the production of coated tennis strings, whereby on @@@ @@@@, plastics, laces or wire existing grains and cloths ciiie or more layers of soft plastic, preferably foamed Synthetic resin, made of natural or @@@@@ ichem rubber, preferably foam rubber, applied are, according to patent ... (patent application P 26 51 659.6), characterized in that The production of the layered strings with or without their elevations already finished stringed tennis rackets yourself by thawing them with "tesa crepe" or a another, easily removable plastic adhesive tape covering the racket frame in the re. However, solutions can be obtained by spraying or spraying on once or several times on the core strings made of gut, plastic or steel wire up to the desired Layer thickness and then roll over the with a serrated roller gradually solidifying resp. hardening layer takes place on the string surface. 2) Method according to claim 1, characterized in that normal Racket coverings can be provided with 2 different racket surfaces in in such a way that one side of the two striking surfaces is the one applied according to the invention Has elevations, while the other side remains untreated or smooth or a different arrangement of the artificial elevations produces different effects.