EP1154822B1 - Ballspielschläger - Google Patents
Ballspielschläger Download PDFInfo
- Publication number
- EP1154822B1 EP1154822B1 EP00907599A EP00907599A EP1154822B1 EP 1154822 B1 EP1154822 B1 EP 1154822B1 EP 00907599 A EP00907599 A EP 00907599A EP 00907599 A EP00907599 A EP 00907599A EP 1154822 B1 EP1154822 B1 EP 1154822B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strings
- racket
- string
- longitudinal
- intermediate elements
- 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.)
- Expired - Lifetime
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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
- A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
-
- 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
- A63B51/10—Reinforcements for stringing
- A63B51/11—Intermediate members for the cross-points of the strings
Definitions
- the invention relates to a ball game racket, especially tennis rackets, with several longitudinal strings and a plurality of perpendicular to the longitudinal strings arranged substantially vertically Cross strings, with the main strings with the cross strings Forming crossing points and at least one part the crossing points between a respective longitudinal string and a respective cross string secured against falling out, elastic intermediate members are provided.
- Such a ball game racket is known from DE-OS 2654896 known.
- the focus of this document is the task intersecting transverse and longitudinal strings of a ballgame racquet to block at the crossing points, so that the strings can not move against each other.
- These described intermediate links should be made of rigid or semi-rigid Material, preferably of a plastic, such as Polyacethal or polyamide resin, but also of a metal consist. It also addresses the possibility that the Intermediate links store and return elastic energy can.
- the intermediate links are essentially fully cylindrical shaped and have a diameter of 3 to 4 mm. To accommodate the strings grooves are provided whose bottoms should have a distance to each other between 0 and 0.4 mm.
- the tennis racket described in the document has a natural gut string, which is the preferred one Material for playing tennis acts as natural gut has an elastic elongation of 25% and over a prolonged period no material fatigue shows. Natural gut strings are very expensive, so that they significantly increase the purchase price of a tennis racket.
- FR-A-721 797 describes platelets of elastic material, the elasticity of a tennis racket stringing in which the tiles at the crossing points the clothing in each case between a longitudinal and a Cross string of the covering to be inserted. The tiles are after insertion by the exerted by the fabric Pressure almost completely compressed, so that they can not act as an effective spring element. something similar applies to the elastic described in FR-A-786 619 Platelets, which may be made of rubber, for example, and at the crossroads of a tennis string made of metal are arranged.
- FR-A-2208689 and DE-A-29 22 631 describe intermediate links, as the protective particles for each used Tennis string serve, whereby an influence of the Game characteristics of tennis racket stringing not desired is.
- US-A-4,168,065 shows a tennis racket cover arranged at the crossing points spacer particles, the provide a concave surface shape of the clubface.
- Refer to the intended changes in the game characteristics focus on the simplification of, for example, top spin or side-spin punches.
- the invention is therefore based on the object, a ball game rackets to create that in its playing characteristics is variable and those of a tennis racket with strings from natural intestine waiving the material natural gut as close as possible or even better.
- the longitudinal strings and the cross strings a material whose elastic elongation does not exceed 15% is limited, come according to the invention materials for the Strings in question, the generally lower fatigue by continuous use of the ball game racket show than hitherto usual materials for Ballspielellersaiten. So is the elastic strain at Nylon® strings at 28%, while the elastic elongation at Polyester strings is between about 15% and 25%. Opposite come in accordance with the invention also string materials Question that has not been considered in ball game rackets been drawn. In particular, steel strings, Aramid fibers with an elastic elongation of about 4% and Kevlar® strings are used. Preferably, the Cross strings and the longitudinal strings, however, from combinverstrecktem Polyester with an elastic elongation in the range of 8 to 12%.
- the number of intermediate links to be provided is preferred evenly distributed over the longitudinal and transverse strings, depends on the desired elasticity of the fabric. Basically, the elastic compression of the intermediate links with decreasing elastic elongation of the Increase strings.
- the intermediate links act like spring elements, by the impact of a ball on the fabric be compressed and then their stored return elastic energy to the ball again.
- Prefers are at least 20% of the crossing points with the pontics fitted.
- the clothing can also be 50% and even 95% of the Intersection points be equipped with pontics. Around the playing characteristics of a natural gut string especially close or surpass these, the proportion of with intersections equipped intersections so high be as possible.
- the intermediate links may be made of polyurethane, for example or rubber. Basically, however, each one is Material conceivable that meets the requirements of the elastic Compression met. There are also intermediate links conceivable, the consist of several components, one of which as a spring element is trained. The materials polyurethane and However, rubber is characterized by the fact that they are durable are claimable, without fatigue demonstrate. It should be noted that the intermediate links over the life of a commercial example Tennis string can only be used for about 10 minutes.
- the elastic compression of the intermediate links at a pressure of 22 N / mm 2 is between 40 and 70%, particularly preferably between 50 and 60%. It has been shown that a length of a full polyurethane material cylinder of 0.8 to 1.2 mm with a diameter between 1.5 and 2 mm is particularly favorable.
- the intermediate links preferably each have a groove for Recording of the longitudinal or transverse string.
- the groove can be in their shape adapted to that of a standard tennis string which has a diameter of 1.0 to 1.4, preferably from 1.1 to 1.2 mm, has.
- the intermediate links have one in their middle area Cross section, which is larger than the cross section of Intermediate links on the front strings is. That way the middle region of the intermediate links an increased spring force, the relevant for the elasticity of the intermediate member is.
- the elastic intermediate links now make it possible to to provide a racquet clothing, which meets the two conflicting requirements, both weak and heavy use to provide adequate elasticity behavior. This is made by a covering with an even relatively inelastic String achieved, with low impact by the elastic intermediate links a satisfactory Elasticity is achieved. For the soulful tennis game So these intermediate links take over most of the rebound forces, because at the low stress the relatively inelastic string not very much extended, but by the compression of the spring elements as a whole nevertheless a high elasticity is achieved.
- the rebound forces are by choosing the hardness of the intermediate links (for example, by the shape or the material) adjustable. The rebound forces can be applied almost without fatigue be, as a short compressive stress the material is not as much harms as a permanent tensile load and even after a long game a total of only a very short Loading time arises.
- Particularly advantageous is the arrangement of the intermediate links in the edge area of the racket, which makes a very good Damping of the vibrations is achieved over the Frame to be transferred to the striking arm. An attenuation These vibrations have a significant effect on education a tennis elbow caused by the vibrations opposite.
- an intermediate member 1 for a string crossing the stringing of a tennis racket made of harnessverstrecktem Polyester with an elastic elongation of 10% Between crossing strings (not shown) is the intermediate member 1, made of polyurethane material is made.
- the two ends 2, 3 of the intermediate member 1 are formed as groove-shaped brackets that each other are arranged at a 90 ° angle and crossing each other Partially surround strings.
- a block 4 is arranged polyurethane material.
- This block 4 is referred to herein as a "spring element", because he is mainly for the cushioning of the strings caused against each other at a compressive stress by the elongation of the strings, is responsible.
- the entire intermediate member in one piece from the resilient polyurethane material finds part of the suspension also in the area of brackets.
- Fig. 1 In the known embodiment of an intermediate member shown in Fig. 1 is the Spring element designed as a cube of approx. 1-2 mm edge length.
- the brackets are elongated half shells, the two sides protrude beyond the spring element.
- Fig. 2 is an alternative embodiment of an intermediate member 5 shown from the prior art.
- the spring element as Cuboid of about 1.5 mm in length and a base of approx. 1.2 x 1.2 mm executed.
- the attached to the strings cup-shaped Brackets close flush with the spring element from.
- FIG. 3 shows the intermediate member 5 from FIG. 2, whereby by impact the two strings on each other are pressed. This can happen on the one hand that the string crossing is hit directly by the ball and so on the superimposed strings are pressed together.
- Besaitung see Fig. 4
- FIG. 3 shows the intermediate member 5 from FIG. 2, whereby by impact the two strings on each other are pressed. This can happen on the one hand that the string crossing is hit directly by the ball and so on the superimposed strings are pressed together.
- Besaitung see Fig. 4 spreads a such compressive stress over the entire surface of the clothing, so that even at such string crossings compressive forces arising from the point of impact of the ball lie.
- the fabric is formed from a relatively inelastic, otherwise unusable string, For example, a steel side or a plastic string made of highly stretched polyester (polyethylene terephthalate).
- a relatively low tensile force become the intermediate links 5 already described some string crossings inserted into the fabric. hereby results in a greater clamping force, because the intermediate links have a longitudinal extent of 0.5 to 2.5 mm.
- the subsequent introduction of these intermediate links at some (eg 20) string crossings the Hardness of the clothing subsequently increased. coverings, already some of their elasticity by extension may have lost the strings under stress, so by subsequent insertion of the intermediate links again get an increased stringing hardness and already lost Regain elasticity.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Laminated Bodies (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
- die Längssaiten und die Quersaiten aus einem Material bestehen, das eine elastische Längsdehnung von maximal 15% aufweist,
- die Zwischenglieder in Richtung von einer jeweiligen Quersaite zu einer jeweiligen Längssaite eine elastische Stauchung aufweisen, die bei einem Druck von 22 N/mm2 mindestens 20% beträgt,
- die Zwischenglieder eine Länge von 0,5 bis 2,5 mm aufweisen, und
- die Zwischenglieder in ihrem mittleren Bereich einem Querschnitt aufweisen, der größer als der Querschnitt der Zwischenglieder an den Stirnseiten ist.
- Fig. 1
- eine aus dem Stand der Technik bekannte Ausführungsform eines Zwischengliedes für einen Tennisschläger;
- Fig. 2
- eine andere aus dem stand der Technik bekannte Ausführungsform eines Zwischengliedes für einen Tennisschläger;
- Fig. 3
- die Ausführungsform für ein Zwischenglied von Fig. 2 in zusammengedrücktem Zustand;
- Fig. 4
- einen Ausschnitt aus einer Tennisschlägerbesaitung, die mit Zwischengliedern ausgestattet ist;
- Fig. 5
- einen Tennisschläger, der an seinem Rand mit Zwischengliedern ausgestattet ist; und
- Fig. 6
- eine weitere Ausführungsform eines Zwischengliedes für einen Tennisschläger.
Claims (7)
- Ballspielschläger, insbesondere Tennisschläger, mit mehreren Längssaiten und mehreren zu den Längssaiten im wesentlichen senkrecht angeordneten Quersaiten, wobei die Längssaiten mit den Quersaiten Kreuzungspunkte bilden und wenigstens an einem Teil der Kreuzungspunkte zwischen einer jeweiligen Längssaite und einer jeweiligen Quersaite gegen Herausfallen gesicherte, elastische Zwischenglieder vorgesehen sind,
dadurch gekennzeichnet, daßdie Längssaiten und die Quersaiten aus einem Material bestehen, das eine elastische Längsdehnung von maximal 15% aufweist,die Zwischenglieder (1; 5; 7) in Richtung von einer jeweiligen Quersaite zu einer jeweiligen Längssaite eine elastische Stauchung aufweisen, die bei einem Druck von 22 N/mm2 mindestens 20% beträgt,die Zwischenglieder (1; 5; 7) eine Gesamthöhe von 0,5 bis 2,5 mm aufweisen unddie Zwischenglieder (7) in ihrem mittleren Bereich einen Querschnitt aufweisen, der größer als der Querschnitt der Zwischenglieder (7) an den Stirnseiten ist. - Ballspielschläger nach Anspruch 1, dadurch gekennzeichnet, daß die Quersaiten und die Längssaiten aus hochverstrecktem Polyester mit einer elastischen Dehnung im Bereich von 8 bis 12 % bestehen.
- Ballspielschläger nach einem der Ansprüche 1-2, dadurch gekennzeichnet, daß mindestens 20%, bevorzugt mindestens 50% und insbesondere mindestens 95%, der Kreuzungspunkte mit den Zwischengliedern (1; 5; 7) ausgestattet sind.
- Ballspielschläger nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Zwischenglieder (1; 5; 7) aus Polyurethan oder Kautschuk bestehen.
- Ballspielschläger nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die elastische Stauchung der Zwischenglieder (1; 5; 7) bei einem Druck von 22 N/mm2 zwischen 40 und 70% liegt.
- Ballspielschläger nach Anspruch 5, dadurch gekennzeichnet, daß die elastische Stauchung der Zwischenglieder (1; 5; 7) bei einem Druck von 22 N/mm2 zwischen 50 und 60% liegt.
- Ballspielschläger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die einer Längssaite oder einer Quersaite zugewandten Stirnseiten der Zwischenglieder (1; 5) jeweils eine Nut zur Aufnahme der Längs- oder der Quersaite aufweisen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19907291 | 1999-02-22 | ||
DE19907291 | 1999-02-22 | ||
PCT/EP2000/001448 WO2000050126A1 (de) | 1999-02-22 | 2000-02-22 | Ballspielschläger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1154822A1 EP1154822A1 (de) | 2001-11-21 |
EP1154822B1 true EP1154822B1 (de) | 2005-12-28 |
Family
ID=7898253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00907599A Expired - Lifetime EP1154822B1 (de) | 1999-02-22 | 2000-02-22 | Ballspielschläger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1154822B1 (de) |
AU (1) | AU2913300A (de) |
DE (1) | DE50011973D1 (de) |
WO (1) | WO2000050126A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4265303A1 (de) * | 2022-04-22 | 2023-10-25 | Wei-Jung Chen | Vorrichtung zur erzeugung überlagerter stosswellen |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109550202A (zh) * | 2018-12-18 | 2019-04-02 | 邬惠林 | 一种羽毛球十字拍线垫 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR721797A (fr) * | 1931-08-20 | 1932-03-08 | Cales élastiques à interposer dans le réseau formé par les cordes des raquettes de tennis, et instrument pour réaliser cette opération | |
FR786619A (fr) * | 1935-03-02 | 1935-09-06 | Raquette de tennis à cadre métallique | |
CH570176A5 (de) * | 1972-12-01 | 1975-12-15 | Dischinger Gebhard | |
CH607748A5 (de) | 1975-12-04 | 1978-10-31 | Gibello Carlo Selcom Camsa S A | |
SE407152B (sv) * | 1976-04-02 | 1979-03-19 | Goransson Per Gunnar Magnus | Rackett |
JPS5519107A (en) * | 1978-07-27 | 1980-02-09 | Kureha Chemical Ind Co Ltd | Gut and its preparation |
DE2922631C2 (de) * | 1979-06-02 | 1985-12-05 | Werner 8313 Vilsbiburg Fischer | Saitenschutzteilchen für eine Tennisschlägerbespannung |
DE4305829C2 (de) * | 1993-02-25 | 1995-10-12 | Pielenz Flechtgarne Kg | Saite sowie Verfahren zur Herstellung einer derartigen Saite |
JP2826055B2 (ja) * | 1993-12-27 | 1998-11-18 | 株式会社ゴーセン | ラケット用ガット及びその製造方法 |
-
2000
- 2000-02-22 DE DE50011973T patent/DE50011973D1/de not_active Expired - Fee Related
- 2000-02-22 EP EP00907599A patent/EP1154822B1/de not_active Expired - Lifetime
- 2000-02-22 WO PCT/EP2000/001448 patent/WO2000050126A1/de active IP Right Grant
- 2000-02-22 AU AU29133/00A patent/AU2913300A/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4265303A1 (de) * | 2022-04-22 | 2023-10-25 | Wei-Jung Chen | Vorrichtung zur erzeugung überlagerter stosswellen |
Also Published As
Publication number | Publication date |
---|---|
WO2000050126A1 (de) | 2000-08-31 |
DE50011973D1 (de) | 2006-02-02 |
AU2913300A (en) | 2000-09-14 |
EP1154822A1 (de) | 2001-11-21 |
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