EP0471283A1 - Elément pré-fabriqué de cordage pour raquettes de tennis ou similaire - Google Patents

Elément pré-fabriqué de cordage pour raquettes de tennis ou similaire Download PDF

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Publication number
EP0471283A1
EP0471283A1 EP91113286A EP91113286A EP0471283A1 EP 0471283 A1 EP0471283 A1 EP 0471283A1 EP 91113286 A EP91113286 A EP 91113286A EP 91113286 A EP91113286 A EP 91113286A EP 0471283 A1 EP0471283 A1 EP 0471283A1
Authority
EP
European Patent Office
Prior art keywords
strings
string
prefabricated
type
structure according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91113286A
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German (de)
English (en)
Inventor
Klaus Flamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0471283A1 publication Critical patent/EP0471283A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/01—Pre-woven string-sets ready for insertion into a frame

Definitions

  • the invention relates to a prefabricated string structure for stringing tennis rackets or the like according to the preamble of claim 1.
  • Such a prefabricated string structure is known from G 88 13 991, in which a number of individual transverse and longitudinal strings with free, cut ends are crossed to form a prefabricated net according to a desired stringing pattern.
  • the stringing pattern is fixed by means of an alignment device which holds the crossed cross and main strings in the specified position to one another.
  • the net prepared in this way only needs to be placed in the racket head for covering a tennis racket or the like and the free ends have to be fastened in the respectively associated holes of the racket frame.
  • the stringing process using the prefabricated string structures is considerably simplified compared to the known pulling in of several string strings, the stringing by means of individual, free strings also allowing the setting of different stringing profiles.
  • the handling of a net with a fixed covering pattern has turned out to be when threading the free ends into the holes of the racket frame not adequately adaptable to the characteristics of the club head. Furthermore, it was not possible to achieve a sufficient reduction in the size of the prefabricated string structure for the packaging.
  • the object of the invention is therefore to provide a prefabricated string structure according to the preamble of claim 1, which allows quick stringing and is easy to handle.
  • a prefabricated string structure is created from crossed longitudinal and cross strings, one type of string being inserted more densely than the other type of string, so that a collective field of one type of string with the desired type of crossing is formed on the other type of string.
  • a prefabricated string structure thus represents a kind of intermediate product from a selectable number of main and cross strings with a definable type of crossover for a subsequent stringing.
  • the further setting can be made according to the setting according to the desired covering pattern.
  • the setting of the other type of string is chosen to be narrower, so that a supply of crossed strings is created, the spacing of which can be changed when inserted into the racket head or during the stringing process by moving along the other type of string.
  • the string structure according to the invention thus consists, like a prefabricated net, of longitudinal and transverse strings required and crossed for a stringing, as a result of which a quick stringing is possible.
  • the prefabricated string structure is as Use of the network is more stable and the risk of the intersection presented falling apart is low.
  • the strings of the collective field with tight adjustment can be formed either by the cross strings or the main strings and can be placed next to each other with little or no spacing.
  • a holder can be provided, which consists of a removable adhesive film or comprises individual connecting elements, optionally engaging at the crossing points of the longitudinal and transverse strings.
  • Figure 1 shows a first embodiment of a flat, prefabricated string structure 1 for stringing rackets for tennis, badminton or the like from individual main strings 2 and cross strings 3.
  • the main strings 2 and the cross strings 3 are crossed like warp and weft of a fabric in plain weave (cf. Fig. 2), but can also be crossed in another bond.
  • the main and cross strings 2, 3 are combined with one another in such a way that more cross strings 3 are distributed per surface unit on a certain surface section 4 of the string structure 1 than main strings 2.
  • the spacing or adjustment ratio The main strings 2 and the cross strings 3 are consequently selected differently, the cross strings having a denser setting, ie less spacing from one another, being distributed over the surface section 4 than the main strings 2.
  • the surface section 4 thus defines a collective field for the cross strings 3 over a partial length section of the Main strings 2, preferably all the cross strings 3 inserted into the string structure being distributed on the surface section 4.
  • the longitudinal strings 2 and the transverse strings 3 extend beyond the surface section 4 with free, projecting ends 5, 6 of such a length that a covering of different racket sizes is possible.
  • the wide setting that is to say the spacing of the longitudinal strings 2 here, is preferably already selected in accordance with the setting resulting for a desired stringing pattern.
  • the other type of strings, here the cross strings 3, are inserted crosswise at a smaller distance from one another than the stringing pattern to be achieved and thus form a magazine-like supply of strings which have already been crossed, however.
  • the above statements apply accordingly when swapping main and cross strings.
  • the main strings 2 can be distributed over a surface section of the string structure with a denser setting than the cross strings.
  • the surface section 4 thus defines a collective field of one type of string in relation to the other type of string, so that the strings of one type of string (cross strings or main strings) lie closely adjacent to one another, while the strings of the other type of string (main strings or cross strings) are at a distance from one another, possibly corresponding to that desired string pattern for this type of string.
  • the tight setting for one type of string is preferably selected such that these strings, according to FIG. 1 the transverse strings 3, are spaced apart or only at a short distance from one another.
  • the magazine-like collecting field 4 can extend over a central or edge-side region of the longitudinal extent of the string type with the further adjustment, that is to say the type of string with the greater distance between its strings to one another.
  • the number of strings inserted into the string structure 1 depends on the covering.
  • the number of strings of both types of strings can be selected according to the number of strings required for stringing.
  • one or both types of strings can be inserted with a higher number of strings (e.g. by 1 to 4 strings higher), which makes it possible to adapt a prefabricated string structure to coverings with different strings.
  • the surface section 4 is delimited by means of a holder 7.
  • the strings 3 inserted with the tight adjustment are fixed by the holder 7 in this collected distribution.
  • the holder 7 is formed by lateral closure elements which encompass the free ends 6 of the tight strings, here the cross strings 3.
  • FIG. 3 shows a second exemplary embodiment of the prefabricated flat structure, which differs from the exemplary embodiment described above solely by a different design of the holder 7.
  • the holder 7 surrounds the surface section 4 like a frame and for this purpose comprises first frame sections 8, which each encompass the free ends 6 of the transverse strings 3, and second frame sections 9, which encompass the free ends 5 of the main strings 2.
  • the frame sections 9, optionally also the frame sections 8, can be formed by two partial frames that can be placed on the top and bottom sides, which can be placed on the edge-side crossing points or on the longitudinal strings 2 in the region of the boundary line of the surface section 4 and by means of locking devices 10 are releasably pressed together.
  • the locking devices 10 can be formed by individual grippers which hook the two partial frames 9 together.
  • the holder can be designed as a removable adhesive film for the collecting field (4).
EP91113286A 1990-08-11 1991-08-08 Elément pré-fabriqué de cordage pour raquettes de tennis ou similaire Withdrawn EP0471283A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9011721U DE9011721U1 (fr) 1990-08-11 1990-08-11
DE9011721U 1990-08-11

Publications (1)

Publication Number Publication Date
EP0471283A1 true EP0471283A1 (fr) 1992-02-19

Family

ID=6856455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113286A Withdrawn EP0471283A1 (fr) 1990-08-11 1991-08-08 Elément pré-fabriqué de cordage pour raquettes de tennis ou similaire

Country Status (4)

Country Link
US (1) US5158285A (fr)
EP (1) EP0471283A1 (fr)
AU (1) AU8151591A (fr)
DE (1) DE9011721U1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346211A (en) * 1993-06-24 1994-09-13 Ou Li Min Game racket
US6132325A (en) * 1997-06-25 2000-10-17 Bertolotti; Fabio P Interlocking string network for sport rackets
US6506134B2 (en) 1997-06-25 2003-01-14 Fabio Paolo Bertolotti Interlocking string network for sports rackets
US6234922B1 (en) * 1998-07-06 2001-05-22 Craig C. White Fielding practice bat
US6280354B1 (en) 2000-03-27 2001-08-28 Fabio P Bertolotti Monolithic string network for sport rackets
US7438654B2 (en) * 2006-03-29 2008-10-21 Liang-Fa Hu Structure of toy tennis racket

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598323A1 (fr) * 1986-05-12 1987-11-13 Holding Procede de cordage d'une raquette de tennis ou similaire, et element specialement concu pour la mise en oeuvre de ce procede
EP0380822A1 (fr) * 1988-11-09 1990-08-08 Klaus Flamm Cordage pour raquettes de tennis, de badminton, et similaire

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1733960A (en) * 1929-01-21 1929-10-29 Charles L Godfrey Tennis racket
DE2605638A1 (de) * 1975-02-13 1976-09-09 Jacqueline Septier Verfahren zur herstellung eines netzes fuer tennisschlaeger und durch ausfuehrung des verfahrens erhaltenes netz fuer schlaeger sowie verwendung des netzes als bespannung von schlaegern
US4149722A (en) * 1976-03-19 1979-04-17 Victor Yager Pre-formed racket string with inter-locked webbing
US4488722A (en) * 1981-10-28 1984-12-18 Gunter Harz Safety tennis racquet
US4456254A (en) * 1982-09-30 1984-06-26 Mcdonald Ernest Apparatus for stringing a racquet
EP0133165B1 (fr) * 1983-07-26 1990-04-18 Ivan Szedressy Raquette munie d'un système de fixation des cordes
DE8813991U1 (fr) * 1988-11-09 1988-12-29 Flamm, Klaus, 4030 Ratingen, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598323A1 (fr) * 1986-05-12 1987-11-13 Holding Procede de cordage d'une raquette de tennis ou similaire, et element specialement concu pour la mise en oeuvre de ce procede
EP0380822A1 (fr) * 1988-11-09 1990-08-08 Klaus Flamm Cordage pour raquettes de tennis, de badminton, et similaire

Also Published As

Publication number Publication date
AU8151591A (en) 1992-02-13
US5158285A (en) 1992-10-27
DE9011721U1 (fr) 1990-10-18

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