EP2219743B1 - Racket comprising a joint - Google Patents
Racket comprising a joint Download PDFInfo
- Publication number
- EP2219743B1 EP2219743B1 EP08854688.2A EP08854688A EP2219743B1 EP 2219743 B1 EP2219743 B1 EP 2219743B1 EP 08854688 A EP08854688 A EP 08854688A EP 2219743 B1 EP2219743 B1 EP 2219743B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- joint
- racket
- bridge
- racket according
- clock
- 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.)
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Links
- 210000003128 head Anatomy 0.000 claims description 21
- 238000013016 damping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 240000004244 Cucurbita moschata Species 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 241000219470 Mirabilis Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- -1 polyoxymethylene Polymers 0.000 description 2
- 235000020354 squash Nutrition 0.000 description 2
- 238000001845 vibrational spectrum Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 240000005860 Portulaca grandiflora Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/025—Means on frames for clamping string ends
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/028—Means for achieving greater mobility of the string bed
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
Definitions
- the present invention relates to a racket for ball games, in particular a tennis badminton, racquetball or squash racket.
- Such ball game rackets typically include a frame forming a club head, and a handle portion. Furthermore, such ball game rackets may have a arranged between the head area and the handle area neck or heart area or a fork.
- the club head of the racket defines a clothing plane in which the clothing of the racket is placed.
- the frame is formed from a frame profile that is often made from a carbon fiber reinforced plastic material in a molding press.
- the EP-B-0 676 222 a racket having a handle and a frame having a head portion, force amplifying portions and flexible portions alternately formed along the entire frame or along a portion of the frame spaced from the handle, each having 10 to 20 power boosting portions and flexible portions.
- the WO-A-91/12857 relates to a racket with a frame, which is formed by a profile and the outside of a frame spaced apart arranged profile part is assigned, which is supported with the interposition of a vibration damping device on the frame and stores the strings of a stringing.
- the EP-B-1 097 730 relates to a ball game racket, wherein a frame forming the profile at different frame positions according to the main stresses occurring there have different cross-sectional shapes, which have adapted to the respective types of stress resistance moments, and wherein the frame at least two hump-like stiffening elements are provided substantially symmetrically to the longitudinal axis of the racket in the heart area.
- the US 4,311,308 describes a tennis racket with an insert in the heart area to which at least some strings can be attached.
- This insert piece can be designed in the form of a joint with a joint axis in the stringing plane and substantially parallel to the racket longitudinal axis.
- the insert should be able to experience an elastic deformation due to the impulse of an incoming ball, in a direction perpendicular to the clothing plane.
- the US 5,133,552 discloses a tennis racket whose frame has curved recesses in the heart area.
- a yoke piece (or bridge) has curved ends which are substantially matched to the curvature of these recesses. Between the yoke ends and the recesses of the frame, an elastomeric damping disc is provided. This should help to reduce shocks and vibrations in the racket.
- the JP S53 63138 A describes a tennis racket whose bridge has two legs connected by a hinge, which are each connected fixedly to the rest of the racket frame.
- the present invention has for its object to provide a further improved ball game rackets, in particular an improved tennis, badminton, racquetball and squash rackets available. Further or additional objects of the invention are to provide a racket which overcomes the disadvantages of the prior art, which has improved handleability or optimized playability, which enables excellent ball guidance and acceleration and is simple and inexpensive to produce.
- the present invention provides a ball game racket having a head portion for receiving a string and a heart portion having two arms and a bridge, the bridge having at least one hinge whose hinge axis is substantially perpendicular to a stringing plane formed by the string.
- the bridge comprises two legs, which are movably mounted on the arms and connected to each other via the joint.
- the joint is preferably suitable for allowing deformations of the frame in the clothing plane. This can be realized in particular by means of a joint whose articulation axis is arranged substantially perpendicular to a clothing plane formed by the clothing.
- the head shape of the racket is largely arbitrary and may for example be oval, egg-shaped, teardrop-shaped, rectangular with rounded corners, etc.
- a dial of a watch is usually used, the 12 o'clock position being located at the extreme or free end of the club head. Accordingly, the 3 o'clock or 9 o'clock position is approximately in the middle of the total length of the clubhead.
- Further joints can be arranged, for example, in the head area between two o'clock and four o'clock, preferably at about three o'clock and / or between eight o'clock and ten o'clock, preferably at about nine o'clock.
- the joint "at about three o'clock” to understand that the pivot point or the axis of rotation of the joint is positioned at about three o'clock.
- another joint may be arranged in the head region between eleven o'clock and one o'clock, preferably at about twelve o'clock.
- other joint positions or combinations of joint positions are conceivable.
- a symmetrical arrangement to the longitudinal axis of the racket will be advantageous, but an asymmetrical arrangement, for example, only one hinge at about three o'clock, should not be excluded hereby.
- the racket comprises a heart area with two arms and a bridge, the bridge having at least one joint.
- This bridge joint may be present in addition to the above-mentioned joints.
- Such a bridge joint is inventively realized in that the bridge comprises two legs which are movably mounted on the arms and connected to each other via the joint.
- the bridge is convex relative to the grip portion, in particular substantially V- or U-shaped, with the opening of the V or U pointing in the direction of the head region.
- the bridge is concave relative to the handle portion, in particular substantially V- or U-shaped, wherein the tip of the V or U points in the head region.
- the joint may be formed, for example, as a hinge joint or ball joint.
- a ball joint is particularly advantageous at about twelve o'clock and / or at the bridge.
- the head area has joint forks and / or eyes, which are movably connected to one another by means of plug-in hinge pins.
- all known types of industrial seals are usable.
- materials come for z.
- aluminum, magnesium, titanium or high performance plastics such.
- the joint has at least one end stop in order to limit and / or slow down the deflection of the joint so as to prevent the deformation of the joint To be able to control the club head in a targeted way.
- the hinge permit pivot angles in the range of -15 to 15 degrees, preferably -10 to 10 degrees, more preferably -5 to 5 degrees.
- the joint may for this purpose have a spring device which counteracts the deflection of the joint.
- Fig. 1 shows a ball game racket, in particular tennis rackets in plan view.
- the ball game racket has a frame that forms a substantially oval club head or head area 1, a heart area 2 and a grip portion 3.
- the frame is preferably formed from a frame or hollow profile.
- the club head defines a clothing plane of the racket.
- the heart area 2 of the racket is arranged substantially between the head area 1 and the handle section 3 and represents the connection area between them.
- the heart area 2 has, for example, as in FIG Fig. 1 shown, an opening 4. However, this opening is not mandatory.
- the opening 4 is formed, it is generally formed by two side sections or arms 5 and 6 and a connecting portion or a bridge 7, which is arranged in the head portion 2 of the racket.
- the racket in the head area 2 also two joints 8 and 9 at about three o'clock or nine o'clock.
- the different design of the joints 8 and 9 serves only to illustrate exemplary joints. In reality, it will be beneficial to attach two identical joints at both positions.
- the joint 8 can be formed, for example, by the head portion having joint forks and / or eyes, which are movably connected together by means of plug-in hinge pin, as on the left side of Fig. 1 indicated and in Fig. 1a shown closer.
- Fig. 2 is shown schematically how the joints 8 a deformation of the head portion 1 of in Fig. 1 allow shown racket.
- the upper half of the head region 1 ie the range between about nine o'clock and about three o'clock, can shift or distort relative to the rest of the frame, as indicated by the arrow and the frame contour shown in dashed lines.
- the joint axes of the joints 8 are formed perpendicular to the clothing plane, however, a deformation substantially only within the clothing or racket level is possible.
- the usual in conventional rackets deformations of the frame - including those perpendicular to the clothing level - not limited by the joints of the invention. Only the additionally occurring due to the joints deformations are essentially limited to the clothing level.
- the joint 8 has at least one end stop in order to limit and / or slow down the articulation of the joint, in order to prevent the articulation To be able to specifically control deformation of the club head and, in particular, to prevent the club or its clothing from collapsing. Accordingly, it is desirable that the articulation deflections from that in Fig. 2 fully excellent position in the range of -15 to 15 degrees, preferably from -10 to 10 degrees, more preferably -5 to 5 degrees. Further, the joint 8 may alternatively or additionally comprise a spring device for this purpose, which counteracts the deflection of the joint.
- the spring constant of this spring device is in the range between 5 and 100 N / cm, preferably between 30 and 70 N / cm.
- non-linear springs or spring devices could advantageously be used in this context.
- the spring device comprises two different work areas, so that, for example deflections of the joint 8 inward, ie in the direction of the covering, are exposed to a greater spring force than deflections to the outside. Just as the stops to limit the deflection can allow different deflection angle to the inside or outside.
- a modified attachment of the joints 8 at the head area 1 is possible.
- a larger portion of the head portion 1 will participate in the deformation when the hinges 8 are attached closer to the handle, that is, for example, at about four o'clock and about eight o'clock.
- positioning the joints at about two o'clock and about ten o'clock will cause less than half of the head area to be distorted.
- Fig. 3 shows another ball game racket with a joint 8 at about twelve o'clock.
- This embodiment could just as well be realized with the hinge 9.
- a racket according to the invention can also by a combination of in the FIGS. 1 and 3 shown joints and / or joint positions are provided, so have joints at about three o'clock, nine o'clock and twelve o'clock.
- Fig. 4 shows the heart area of an embodiment of a ball game racket according to the invention.
- the bridge comprises two legs 10 and 11 which are movably mounted on the arms 5 and 6 and connected to each other via a hinge 8.
- the joint shown is merely exemplary and technically feasible in other ways.
- the bridge is relative to Handle portion convex, namely U-shaped, wherein the opening of the U points in the head area.
- Fig. 5 shows a schematic diagram for illustrating the operation of the joint according to Fig. 4 .
- the bridge is as in Fig. 6 to see, relative to the handle portion concave, namely U-shaped, formed, wherein the opening of the U in the direction handle portion has.
- the impact of a ball in this variant has a substantially reverse effect.
- the deformation of the bridge 7 causes a contraction of the head area 1 and thus a relaxation of the transverse strings, as illustrated by the corresponding arrows.
- the present invention has an advantageous effect on the playing behavior of a racket according to the invention, in that the deformation behavior can be adjusted in a targeted and controlled manner.
- the in Fig. 1 illustrated embodiment of the racket "softer" than a conventional racket in one direction perpendicular to the racket longitudinal axis, whereas the elasticity of the frame along the racket longitudinal axis remains substantially unaffected.
- This can be advantageous for the vibration spectrum of the racket and thus for its playing behavior.
- the embodiment of Fig. 4 allows controlled influencing of the vibration spectrum.
- the reaction of the longitudinal or transverse strings to the impulse of an incoming ball can be adjusted independently of each other in this racket.
- a pulse amplification by an additional tension of the transverse strings due to the deformation of the bridge is possible (see. Fig. 5 ).
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
- Toys (AREA)
Description
Die vorliegende Erfindung betrifft einen Schläger für Ballspiele, insbesondere einen Tennis-Badminton-, Racketball- oder Squash-Schläger.The present invention relates to a racket for ball games, in particular a tennis badminton, racquetball or squash racket.
Derartige Ballspielschläger weisen typischerweise einen Rahmen, der einen Schlägerkopf bzw. Kopfbereich bildet, sowie einen Griffbereich auf. Ferner können derartige Ballspielschläger einen zwischen dem Kopfbereich und dem Griffbereich angeordneten Hals- oder Herzbereich bzw. eine Gabel aufweisen. Der Schlägerkopf des Schlägers definiert dabei eine Bespannungsebene, in der die Bespannung des Schlägers angeordnet wird. Zur Aufnahme der Saiten der Bespannung sind am Rahmen in der Bespannungsebene liegende Durchgangslöcher zur Durchführung von Bespannungssaiten vorgesehen. Üblicherweise ist der Rahmen aus einem Rahmenprofil gebildet, das häufig aus einem kohlefaserverstärktem Kunststoffmaterial in einer Formpresse hergestellt wird.Such ball game rackets typically include a frame forming a club head, and a handle portion. Furthermore, such ball game rackets may have a arranged between the head area and the handle area neck or heart area or a fork. The club head of the racket defines a clothing plane in which the clothing of the racket is placed. To accommodate the strings of the covering lying through holes are provided for the implementation of stringed strings on the frame in the stringing plane. Typically, the frame is formed from a frame profile that is often made from a carbon fiber reinforced plastic material in a molding press.
Darüber hinaus ist bekannt, an unterschiedlichen Stellen des Rahmens sich voneinander unterscheidende Querschnittsformen des Rahmenprofils vorzusehen, um beispielsweise Einfluss auf die Deformationen des Schlägers nehmen zu können.In addition, it is known to provide at different points of the frame mutually differing cross-sectional shapes of the frame profile, for example, to be able to influence the deformation of the racket.
So offenbart beispielsweise die
Die
Die
Ferner ist bekannt, Dämpfungsvorrichtungen an unterschiedlichen Positionen des Rahmens anzubringen, um etwa bessere Dämpfungseigenschaften bereitzustellen. Ein solcher Schläger ist zum Beispiel in der
Die
Die
Die
Mit einigen der aus dem Stand der Technik bekannten Schlägern sind die optimale Ballführung, die optimale Steifigkeit bzw. das optimale Dämpfungsverhalten eines Schlägers jedoch nicht erfüllt, so dass Treffsicherheit, Impulsabsorption und Handhabbarkeit bzw. Spielverhalten dieser bekannten Schläger weiterhin verbesserungswürdig sind. Bei den aus dem Stand der Technik bekannten Schlägern ist weiterhin kein optimales Beschleunigungsvermögen, das vom Schläger auf den Ball übertragbar ist, gegeben. Insbesondere ist es bei bereits bekannten Schlägern kaum möglich, die durch den Aufprall des Balles auf den Schläger und die damit verbundene Impulsabsorption verursachte Deformation des Schlägerrahmens gezielt zu kontrollieren bzw. den Impuls effektiv in Schlagkraft umzusetzen.However, with some of the rackets known from the prior art, the optimal ball guidance, the optimal rigidity or the optimal damping behavior of a racket are not met, so that accuracy, impulse absorption and handling of these known rackets are still in need of improvement. In the known from the prior art rackets is still no optimal acceleration capacity, which is transferable from the racket on the ball given. In particular, it is hardly possible in already known rackets to specifically control the deformation of the racket frame caused by the impact of the ball on the racket and the impulse absorption associated therewith or to effectively convert the impulse into punching power.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen weiter verbesserten Ballspielschläger, insbesondere einen verbesserten Tennis-, Badminton-, Racketball- und Squash-Schläger zur Verfügung zu stellen. Weitere oder zusätzliche Aufgaben der Erfindung sind, einen Schläger zur Verfügung zu stellen, der die Nachteile des Standes der Technik überwindet, der eine verbesserte Handhabbarkeit bzw. optimierte Spieleigenschaften aufweist, der eine hervorragende Ballführung und -beschleunigung ermöglicht und einfach und kostengünstig herstellbar ist.The present invention has for its object to provide a further improved ball game rackets, in particular an improved tennis, badminton, racquetball and squash rackets available. Further or additional objects of the invention are to provide a racket which overcomes the disadvantages of the prior art, which has improved handleability or optimized playability, which enables excellent ball guidance and acceleration and is simple and inexpensive to produce.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. In den abhängigen Patentansprüchen sind bevorzugte Ausführungsformen der Erfindung beschrieben.This object is solved by the features of claim 1. In the dependent claims preferred embodiments of the invention are described.
Dementsprechend stellt die vorliegende Erfindung einen Schläger für Ballspiele mit einem Kopfbereich zur Aufnahme einer Bespannung und einem Herzbereich mit zwei Armen und einer Brücke bereit, wobei die Brücke mindestens ein Gelenk aufweist, dessen Gelenkachse im Wesentlichen senkrecht zu einer durch die Bespannung gebildeten Bespannungsebene angeordnet ist. Die Brücke umfasst zwei Schenkel, die beweglich an den Armen gelagert und über das Gelenk miteinander verbunden sind.Accordingly, the present invention provides a ball game racket having a head portion for receiving a string and a heart portion having two arms and a bridge, the bridge having at least one hinge whose hinge axis is substantially perpendicular to a stringing plane formed by the string. The bridge comprises two legs, which are movably mounted on the arms and connected to each other via the joint.
Das Gelenk ist bevorzugt dazu geeignet, Deformationen des Rahmens in der Bespannungsebene zu ermöglichen. Dies kann insbesondere durch ein Gelenk realisiert werden, dessen Gelenkachse im Wesentlichen senkrecht zu einer durch die Bespannung gebildeten Bespannungsebene angeordnet ist.The joint is preferably suitable for allowing deformations of the frame in the clothing plane. This can be realized in particular by means of a joint whose articulation axis is arranged substantially perpendicular to a clothing plane formed by the clothing.
Die Kopfform des Schlägers ist weitgehend beliebig und kann beispielsweise oval, eiförmig, tropfenförmig, rechteckig mit abgerundeten Ecken etc. sein. Zur Definition der jeweiligen Position des Gelenks bzw. der Gelenke entlang des Umfangs des Schlägerkopfes wird üblicherweise ein Ziffernblatt einer Uhr verwendet, wobei die 12-Uhr-Position am äußersten bzw. freien Ende des Schlägerkopfes angeordnet ist. Die 3-Uhr- bzw. 9-Uhr-Position liegt dementsprechend etwa im Bereich der Mitte der Gesamtlänge des Schlägerkopfes. Weitere Gelenke können dabei beispielsweise im Kopfbereich zwischen zwei Uhr und vier Uhr, vorzugsweise bei etwa drei Uhr und/oder zwischen acht Uhr und zehn Uhr, vorzugsweise bei etwa neun Uhr, angeordnet sein. Dabei ist eine Anordnung des Gelenks "bei etwa drei Uhr" so zu verstehen, dass der Drehpunkt bzw. die Drehachse des Gelenks etwa bei drei Uhr positioniert ist.The head shape of the racket is largely arbitrary and may for example be oval, egg-shaped, teardrop-shaped, rectangular with rounded corners, etc. To define the respective position of the joint or joints along the circumference of the club head, a dial of a watch is usually used, the 12 o'clock position being located at the extreme or free end of the club head. Accordingly, the 3 o'clock or 9 o'clock position is approximately in the middle of the total length of the clubhead. Further joints can be arranged, for example, in the head area between two o'clock and four o'clock, preferably at about three o'clock and / or between eight o'clock and ten o'clock, preferably at about nine o'clock. Here is an arrangement of the joint "at about three o'clock" to understand that the pivot point or the axis of rotation of the joint is positioned at about three o'clock.
Alternativ oder zusätzlich kann ein weiteres Gelenk im Kopfbereich zwischen elf Uhr und ein Uhr, vorzugsweise bei etwa zwölf Uhr, angeordnet sein. Es sind aber auch andere Gelenkpositionen bzw. Kombinationen von Gelenkpositionen vorstellbar. Typischerweise wird eine zur Längsachse des Schlägers symmetrische Anordnung von Vorteil sein, aber eine asymmetrische Anordnung, beispielsweise nur ein Gelenk bei etwa drei Uhr, soll hiermit nicht ausgeschlossen werden.Alternatively or additionally, another joint may be arranged in the head region between eleven o'clock and one o'clock, preferably at about twelve o'clock. However, other joint positions or combinations of joint positions are conceivable. Typically, a symmetrical arrangement to the longitudinal axis of the racket will be advantageous, but an asymmetrical arrangement, for example, only one hinge at about three o'clock, should not be excluded hereby.
Erfindungsgemäß umfasst der Schläger einen Herzbereich mit zwei Armen und einer Brücke, wobei die Brücke mindestens ein Gelenk aufweist. Dieses Brückengelenk kann zusätzlich zu den oben erwähnten Gelenken vorhanden sein. Ein solches Brückengelenk ist erfindungsgemäß dadurch realisiert, dass die Brücke zwei Schenkel umfasst, die beweglich an den Armen gelagert und über das Gelenk miteinander verbunden sind.According to the invention, the racket comprises a heart area with two arms and a bridge, the bridge having at least one joint. This bridge joint may be present in addition to the above-mentioned joints. Such a bridge joint is inventively realized in that the bridge comprises two legs which are movably mounted on the arms and connected to each other via the joint.
Dabei ist gemäß einer Variante dieser Ausführungsform die Brücke relativ zum Griffabschnitt konvex, insbesondere im Wesentlichen V- bzw. U-förmig ausgebildet, wobei die Öffnung des V bzw. U in Richtung Kopfbereich weist. Entsprechend einer zweiten Variante dieser Ausführungsform ist die Brücke relativ zum Griffabschnitt konkav, insbesondere im Wesentlichen V- bzw. U-förmig ausgebildet, wobei die Spitze des V bzw. U in Richtung Kopfbereich weist.In this case, according to a variant of this embodiment, the bridge is convex relative to the grip portion, in particular substantially V- or U-shaped, with the opening of the V or U pointing in the direction of the head region. According to a second variant of this embodiment, the bridge is concave relative to the handle portion, in particular substantially V- or U-shaped, wherein the tip of the V or U points in the head region.
Für die oben erwähnten Ausführungsformen sind unterschiedliche Gelenktypen verwendbar. So kann das Gelenk zum Beispiel als Scharniergelenk oder Kugelgelenk ausgebildet sein. Ein Kugelgelenk ist insbesondere bei etwa zwölf Uhr und/oder an der Brücke vorteilhaft. Ebenso besteht die Möglichkeit, dass der Kopfbereich Gelenkgabeln und/oder -ösen aufweist, die mittels einsteckbarer Gelenkbolzen beweglich miteinander verbunden sind. Allgemein sind alle bekannten Arten von Industriegelenken verwendbar. Als Materialien kommen dafür z. B. Aluminium, Magnesium, Titan oder Hochleistungskunststoffe wie z. B. Polyoxymethylen oder Polytetrafluorethylen in Frage.Different types of joints can be used for the above-mentioned embodiments. Thus, the joint may be formed, for example, as a hinge joint or ball joint. A ball joint is particularly advantageous at about twelve o'clock and / or at the bridge. It is also possible that the head area has joint forks and / or eyes, which are movably connected to one another by means of plug-in hinge pins. In general, all known types of industrial seals are usable. As materials come for z. As aluminum, magnesium, titanium or high performance plastics such. As polyoxymethylene or polytetrafluoroethylene in question.
Es ist ferner vorteilhaft, wenn das Gelenk mindestens einen Endanschlag aufweist, um die Auslenkung des Gelenks zu limitieren und/oder zu verlangsamen, um so die Deformation des Schlägerkopfes gezielt kontrollieren zu können. Demnach ist es erwünscht, dass das Gelenk Schwenkwinkel im Bereich von -15 bis 15 Grad, vorzugsweise von -10 bis 10 Grad, besonders bevorzugt von -5 bis 5 Grad zulässt. Ferner kann das Gelenk zu diesem Zweck eine Federeinrichtung aufweisen, die der Auslenkung des Gelenks entgegenwirkt.It is also advantageous if the joint has at least one end stop in order to limit and / or slow down the deflection of the joint so as to prevent the deformation of the joint To be able to control the club head in a targeted way. Thus, it is desirable that the hinge permit pivot angles in the range of -15 to 15 degrees, preferably -10 to 10 degrees, more preferably -5 to 5 degrees. Furthermore, the joint may for this purpose have a spring device which counteracts the deflection of the joint.
Nachstehend wird ein erfindungsgemäßer Schläger anhand mehrerer bevorzugter Ausführungsformen unter Bezugnahme auf die Zeichnungen näher beschrieben. Es zeigen:
- Fig. 1
- eine Draufsicht auf einen Ballspielschläger;
- Fig. 1a
- eine schematische Seitenansicht eines ersten Gelenktyps im Schläger gemäß
Fig.1 ; - Fig. 1b
- eine schematische Seitenansicht eines zweiten Gelenktyps im Schläger gemäß
Fig.1 ; - Fig. 2
- eine Prinzipskizze möglicher Deformationen des Kopfbereiches eines Schlägers gemäß
Fig. 1 ; - Fig. 3
- eine Draufsicht auf einen Ballspielschläger;
- Fig. 4
- eine Draufsicht auf den Herzbereich eines Ballspielschlägers gemäß einer bevorzugten erfindungsgemäßen Ausführungsform;
- Fig. 5
- eine Prinzipskizze zur Erläuterung der Funktionsweise des Gelenks gemäß
Fig. 4 ; und - Fig. 6
- eine Prinzipskizze zur Erläuterung der Funktionsweise des Gelenks gemäß einer Variante der Ausführungsform in
Fig. 4 .
- Fig. 1
- a plan view of a ball game racket;
- Fig. 1a
- a schematic side view of a first joint type in the racket according to
Fig.1 ; - Fig. 1b
- a schematic side view of a second joint type in the racket according to
Fig.1 ; - Fig. 2
- a schematic diagram of possible deformations of the head portion of a racquet according to
Fig. 1 ; - Fig. 3
- a plan view of a ball game racket;
- Fig. 4
- a plan view of the heart area of a ball game racket according to a preferred embodiment of the invention;
- Fig. 5
- a schematic diagram for explaining the operation of the joint according to
Fig. 4 ; and - Fig. 6
- a schematic diagram for explaining the operation of the joint according to a variant of the embodiment in
Fig. 4 ,
Gemäß der in
In
Zur Veranschaulichung des Sachverhalts ist die auftretende Deformation stark übertrieben. Wie bereits erwähnt, ist es vorteilhaft wenn das Gelenk 8 mindestens einen Endanschlag aufweist, um die Auslenkung des Gelenks zu limitieren und/oder zu verlangsamen, um so die Deformation des Schlägerkopfes gezielt kontrollieren zu können und insbesondere auch zu verhindern, dass der Schläger bzw. dessen Bespannung kollabiert. Demnach ist es erwünscht, dass das Gelenk Auslenkungen gegenüber der in
Zur Kontrolle bzw. Anpassung des Deformationsspektrums ist eine veränderte Anbringung der Gelenke 8 am Kopfbereich 1 möglich. So wird zum Beispiel ein größerer Abschnitt des Kopfbereichs 1 an der Deformation teilhaben, wenn die Gelenke 8 näher am Griff, also beispielsweise bei etwa vier Uhr und etwa acht Uhr angebracht sind. Entsprechend bewirkt eine Positionierung der Gelenke bei etwa zwei Uhr und etwa zehn Uhr, dass weniger als die Hälfte des Kopfbereichs verzerrt wird.To control or adaptation of the deformation spectrum, a modified attachment of the
Demzufolge bewirkt ein Schläger gemäß der in
Entsprechend einer zweiten Variante dieser Ausführungsform ist die Brücke, wie in
Eine Kombination dieser Ausführungsform mit den in
Die vorliegende Erfindung wirkt sich vorteilhaft auf das Spielverhalten eines erfindungsgemäßen Schlägers aus, indem bei diesem gezielt und kontrolliert das Deformationsverhalten eingestellt werden kann. So ist beispielsweise die in
Claims (8)
- A racket for ball games comprising a head region (1) for receiving a stringing and a throat region (2) comprising two arms (5, 6) and a bridge (7), wherein the bridge (7) comprises at least one joint (8) the joint axis of which is arranged essentially perpendicularly with respect to the stringing plane formed by the stringing, and wherein the bridge (7) comprises two legs (10, 11) which are mounted in a movable manner at the arms (5, 6) and connected with each other by means of the joint (8).
- The racket according to claim 1, wherein the bridge (7) is concave relative to the head region (1), in particular essentially V-shaped or U-shaped, with the opening of the V or U being directed towards the head region.
- The racket according to claim 1, wherein the bridge is convex relative to the head region (1), in particular essentially V-shaped or U-shaped, with the point of the V or U being directed towards the head region.
- The racket according to any one of the preceding claims, wherein the joint (8) is realized as a hinge joint or ball joint.
- The racket according to any one of the preceding claims, wherein the head region (1) comprises joint forks and/or eyes which are connected with each other in a movable manner by means of insertable joint bolts.
- The racket according to any one of the preceding claims, wherein the joint (8) comprises at least one end stop for limiting and/or slowing down the articulation of the joint (8).
- The racket according to claim 6, wherein the joint (8) allows pivoting angles ranging between -15 to 15 degrees, preferably -10 to 10 degrees, particularly preferably -5 to 5 degrees.
- The racket according to any one of the preceding claims, wherein the joint (8) comprises a spring means counteracting the articulation of the joint (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056831.4A DE102007056831B4 (en) | 2007-11-26 | 2007-11-26 | Racket with joint |
PCT/EP2008/009470 WO2009068178A1 (en) | 2007-11-26 | 2008-11-10 | Racket comprising a joint |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2219743A1 EP2219743A1 (en) | 2010-08-25 |
EP2219743B1 true EP2219743B1 (en) | 2016-01-27 |
Family
ID=40456718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08854688.2A Active EP2219743B1 (en) | 2007-11-26 | 2008-11-10 | Racket comprising a joint |
Country Status (5)
Country | Link |
---|---|
US (1) | US8282513B2 (en) |
EP (1) | EP2219743B1 (en) |
CN (1) | CN101896234B (en) |
DE (1) | DE102007056831B4 (en) |
WO (1) | WO2009068178A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9504882B2 (en) * | 2015-04-27 | 2016-11-29 | Gregory Mark Adamczak | Interactive tennis racket with split head, flexible spherical joints and strings tension mechanism |
EP3241591A1 (en) | 2016-05-06 | 2017-11-08 | Head Technology GmbH | Yoke for a ball game racket |
US11161017B1 (en) * | 2020-04-09 | 2021-11-02 | Cyrus O. Varan | Racket with discontinuous frame |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5363138A (en) * | 1976-11-16 | 1978-06-06 | Nippon Gakki Seizo Kk | Tennis racket |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1937787A (en) * | 1928-06-13 | 1933-12-05 | Roy H Robinson | Tennis or squash racket |
US4209170A (en) * | 1978-03-13 | 1980-06-24 | Garver John P | Tennis racket |
US4247103A (en) * | 1979-04-04 | 1981-01-27 | Garver John P | Tennis racket |
US4311308A (en) * | 1979-05-31 | 1982-01-19 | Franz Volkl Ohg | Tennis racket |
DE3024234A1 (en) * | 1980-06-27 | 1982-01-21 | Reinhold 4300 Essen Sommer | FRAME FOR A TENNIS RACKET |
ZA867667B (en) * | 1985-10-11 | 1987-05-27 | Fin Sports Ltd | Racquet shock absorbing device |
DE3609453A1 (en) | 1986-03-20 | 1987-10-01 | Erbsloeh Julius & August | Tennis racket |
JPS63168181A (en) * | 1986-12-29 | 1988-07-12 | 美津濃株式会社 | Racket frame |
US4988100A (en) | 1989-04-03 | 1991-01-29 | Shu Donald G C | Tennis racket with separable head and handle assembly |
DE4014999C2 (en) * | 1990-05-10 | 1993-12-02 | Eckard Dipl Ing Schlenker | Rackets, in particular tennis rackets |
US5076583A (en) * | 1990-08-21 | 1991-12-31 | Sportstech Industries (U.S. Tech) Inc. | Racket frame with circular cross section and variable thickness |
US5133552A (en) * | 1991-11-25 | 1992-07-28 | Lisco, Inc. | Floating yoke piece for a racket |
US5172911A (en) * | 1991-12-31 | 1992-12-22 | Chang Chen Chung | Metal racket frame |
DE4311175A1 (en) * | 1992-04-03 | 1993-10-07 | Eckard Dipl Ing Schlenker | Racquet esp. for tennis, with enclosed inner frame with strings - has surrounding outer frame joined to inner frame by four links in form of ball and socket joints or pivot links |
CA2079347A1 (en) * | 1992-09-24 | 1994-03-25 | Charles C. Dicerbo | Sports racket |
US5282617A (en) * | 1992-11-05 | 1994-02-01 | Arthur Hong | Game racket capable of prolonging thereon dwelling time of ball |
US5324030A (en) * | 1993-04-29 | 1994-06-28 | Tsou Ching Fang | Shock absorbing throatpiece of game racket |
US5599018A (en) * | 1994-03-31 | 1997-02-04 | Radel; Harry | Strung racket |
DE69517619T2 (en) * | 1994-04-11 | 2001-02-15 | Wavex Corp., Toronto | Racket with an uneven frame |
CA2174696A1 (en) * | 1996-04-22 | 1997-10-23 | Charles Dicerbo | Sports racket |
DE19953626B4 (en) * | 1999-11-08 | 2004-02-05 | Head Sport Ag | Rackets for ball games |
FR2845610B1 (en) | 2002-10-09 | 2006-12-01 | Major Sports Sa | FIBER MOLDED TENNIS RACKET |
DE202004002090U1 (en) * | 2004-01-23 | 2005-06-09 | Head Technology Gmbh | Racket for ball games, e.g. tennis, squash, badminton or racket ball comprises a racket head and a frame with a connected grip section |
DE102004025346B4 (en) * | 2004-05-19 | 2007-02-08 | Völkl Tennis GmbH | Ball game rackets, in particular tennis rackets |
DE102006004849B4 (en) * | 2006-02-02 | 2008-01-03 | Head Technology Gmbh | Ball game racket with vibration device |
EP2062621B1 (en) * | 2007-11-26 | 2012-04-04 | Head Technology GmbH | Racquet with moveable mounted bridge |
-
2007
- 2007-11-26 DE DE102007056831.4A patent/DE102007056831B4/en not_active Expired - Fee Related
-
2008
- 2008-11-10 WO PCT/EP2008/009470 patent/WO2009068178A1/en active Application Filing
- 2008-11-10 US US12/744,658 patent/US8282513B2/en not_active Expired - Fee Related
- 2008-11-10 EP EP08854688.2A patent/EP2219743B1/en active Active
- 2008-11-10 CN CN2008801179242A patent/CN101896234B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5363138A (en) * | 1976-11-16 | 1978-06-06 | Nippon Gakki Seizo Kk | Tennis racket |
Also Published As
Publication number | Publication date |
---|---|
WO2009068178A1 (en) | 2009-06-04 |
CN101896234B (en) | 2013-04-10 |
US20110003654A1 (en) | 2011-01-06 |
EP2219743A1 (en) | 2010-08-25 |
DE102007056831A1 (en) | 2009-05-28 |
US8282513B2 (en) | 2012-10-09 |
DE102007056831B4 (en) | 2015-10-22 |
CN101896234A (en) | 2010-11-24 |
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