EP0211390B1 - Bouncing wall for tennis training - Google Patents

Bouncing wall for tennis training Download PDF

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Publication number
EP0211390B1
EP0211390B1 EP19860110516 EP86110516A EP0211390B1 EP 0211390 B1 EP0211390 B1 EP 0211390B1 EP 19860110516 EP19860110516 EP 19860110516 EP 86110516 A EP86110516 A EP 86110516A EP 0211390 B1 EP0211390 B1 EP 0211390B1
Authority
EP
European Patent Office
Prior art keywords
wall
rebound
spaced fabric
fabric sheet
air
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
Application number
EP19860110516
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German (de)
French (fr)
Other versions
EP0211390A1 (en
Inventor
Gerhard Höglinger
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.)
Metzeler GmbH
Original Assignee
Metzeler GmbH
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 Metzeler GmbH filed Critical Metzeler GmbH
Publication of EP0211390A1 publication Critical patent/EP0211390A1/en
Application granted granted Critical
Publication of EP0211390B1 publication Critical patent/EP0211390B1/en
Expired 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
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/0097—Ball rebound walls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/62—Inflatable

Definitions

  • the invention relates to a baffle for tennis training using an inflatable air space.
  • Such a baffle is known from DE-A-2 308 082.
  • a cushioning padding made of elastic foam material is arranged on a rigid wall, which can additionally have an inflatable air space on the back to increase the cushioning.
  • baffle is intended to dampen impinging balls, i.e. that their speed is greatly reduced and that the balls, regardless of whether they are hit hard or soft by the player, bounce back as evenly and weakly as possible.
  • the strong damping is achieved in that the baffle consists only of a foam layer that is relatively soft, is compressed on impact and thus significantly dampens the impact force and allows the ball to spring back only in a straight direction.
  • the present invention is therefore based on the object of creating an impact wall which has a considerably greater resilience without substantial damping and thus comes closer to the conditions in a real game on the field with opponents.
  • the air space forming the impact element consists of a one-piece, low-damping, rectangular plate made of a rubber-coated spacer fabric filled with air under excess pressure of 0.5 to 1.5 bar, the two outer fabric webs of which are perpendicular to it running hollow threads are kept at a constant distance and are connected airtight to each other at the peripheral edge.
  • Such a rubber-coated spacer fabric is known in principle from DE-B 2 148 401 after its manufacture and use for floatable bodies, without special attention being paid to the essential property of an internal resilience.
  • the plate 3 according to the invention made of rubber-coated spacer fabric is suspended above the tennis net 2.
  • the spacer fabric consists of the two fabric webs 5 and 6, which are connected to one another via so-called pile threads 7 and are kept at a constant distance from one another.
  • the fabric webs 5 and 6 are provided on their outside with an airtight rubber coating and glued or vulcanized together at the peripheral edge 8.
  • a filling valve 9 via which the plate 3 can be filled with air by means of an air pump.
  • the pressure which is expediently to be selected is expediently from 0 to 1.5 bar, the desired spring characteristic of the plate 3 being able to be set continuously by means of different internal pressures.
  • the spacer fabric plate 3 is now expediently glued over the entire surface to a rigid rear wall 10, for example a plywood or chipboard.
  • This rear wall 10 is then hung via brackets 11 attached to its upper edge over the stationary wall 1 and can thus be easily removed at any time.
  • the free gap between the upper edge of the plate 3 and the upper edge of the rigid wall 1 is expediently provided with a cover 12 in order to prevent balls from falling into this intermediate space.
  • Practice balls 15 can then be struck in a conventional manner against the plate 3 thus assembled, which has a size of approximately 1.5 by 5 m and which is subjected to an appropriate air pressure.
  • the air-filled spacer fabric plate 3 has a considerably higher resilience than a conventional exercise wall made of rigid material and its properties are very close to the conditions on the field with a real opponent. This significantly improves the desired training options. Since the plate 3 is also very weatherproof, it can also be left outdoors when it rains and practically only needs to be removed after the end of the outdoor season.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Finishing Walls (AREA)
  • Vibration Prevention Devices (AREA)

Description

Die Erfindung bezieht sich auf eine Prallwand für Tennis-Training unter Verwendung eines aufblasbaren Luftraumes.The invention relates to a baffle for tennis training using an inflatable air space.

Eine derartige Prallwand ist aus der DE-A-2 308 082 bekannt. Dabei ist an einer starren Wand eine Dämpfungspolsterung aus elastischem Schaumstoffmaterial angeordnet, die auf der Rückseite noch zusätzlich einen aufblasbaren Luftraum zur Erhöhung der Dämpfung aufweisen kann.Such a baffle is known from DE-A-2 308 082. In this case, a cushioning padding made of elastic foam material is arranged on a rigid wall, which can additionally have an inflatable air space on the back to increase the cushioning.

Mit einer derartigen Prallwand soll erreicht werden, daß auftreffende Bälle gedämpft werden, d.h. daß ihre Geschwindigkeit stark reduziert wird und daßdie Bälle, ganz gleich ob sie stark oder weich vom Spieler geschlagen sind, möglichst gleichmäßig schwach zurückspringen. Die starke Dämpfung wird dabei dadurch erreicht, daß die Prallwand lediglich aus einer Schaumstoffschicht besteht, die relativ weich ist, beim Aufschlag zusammengedrückt wird und damit die Aufschlagskraft erheblich dämpft und den Ball nur in gerader Richtung zurückspringen läßt.Such a baffle is intended to dampen impinging balls, i.e. that their speed is greatly reduced and that the balls, regardless of whether they are hit hard or soft by the player, bounce back as evenly and weakly as possible. The strong damping is achieved in that the baffle consists only of a foam layer that is relatively soft, is compressed on impact and thus significantly dampens the impact force and allows the ball to spring back only in a straight direction.

Durch eine derartig stark dämpfende Prallwand ergeben sich für den Spieler Situationen, die erheblich von denen bei einem reellen Spiel auf dem Spielfeld abweichen, da hier die Bälle nämlich mit erheblich größerer Geschwindigkeit vom Gegenspieler zurückkommen.Such a strongly damping baffle results in situations for the player which differ considerably from those in a real game on the field, since here the balls come back from the opponent at a considerably higher speed.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Prallwand zu schaffen, die eine erheblich größere Rückprallelastizität ohne wesentliche Dämpfung aufweist und damit den Verhältnissen bei einem echten Spiel auf dem Feld mit Gegner näherkommt.The present invention is therefore based on the object of creating an impact wall which has a considerably greater resilience without substantial damping and thus comes closer to the conditions in a real game on the field with opponents.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß der das Prallelement bildende Luftraum aus einer einteiligen, dämpfungsarmen, rechteckigen Platte aus einem mit Luft unter Überdruck von 0,5 bis 1,5 Bar gefüllten, gummibeschichteten Abstandsgewebe besteht, dessen beide außenliegende Gewebebahnen durch senkrecht dazu verlaufende Hohlfäden auf konstanten Abstand gehalten und am umlaufenden Rand luftdicht miteinander verbunden sind.To solve this problem it is provided according to the invention that the air space forming the impact element consists of a one-piece, low-damping, rectangular plate made of a rubber-coated spacer fabric filled with air under excess pressure of 0.5 to 1.5 bar, the two outer fabric webs of which are perpendicular to it running hollow threads are kept at a constant distance and are connected airtight to each other at the peripheral edge.

Ein derartiges gummibeschichtetes Abstandsgewebe ist zwar grundsätzlich aus der DE-B 2 148 401 nach seiner Herstellung und Verwendung für schwimmfähige Körper bekannt, ohne daß der wesentlichen Eigenschaft einer innenwohnenden Rückprallelastizität besondere Beachtung geschenkt wurde.Such a rubber-coated spacer fabric is known in principle from DE-B 2 148 401 after its manufacture and use for floatable bodies, without special attention being paid to the essential property of an internal resilience.

Mit der erfindungsgemäßen Prallwand werden auf diese auftreffende Bälle durch den dämpfungsarmen Luftfedereffekt dieser Konstruktion praktisch ohne wesentlichen Geschwindigkeitsverlust zurückfliegen, um dem Spieler Spielverhältnisse zu simulieren, als wenn er mit einem gegenüberstehenden Partner spielt.With the baffle according to the invention these balls will fly back due to the low-damping air spring effect of this construction practically without any significant loss of speed, in order to simulate the playing conditions for the player as if he were playing with an opposing partner.

Weitere zweckmäßige Ausgestaltungen sind in den Unteransprüchen genannt.Further expedient configurations are mentioned in the subclaims.

Anhand einer schematischen Zeichnung sind Aufbau und Wirkungsweise eines Ausführungsbeispiels nach der Erfindung näher erläutert. Dabei zeigen

  • Fig. 1 eine perspektivische Ansicht einer Gesamtanordnung einer Tennis-Übungswand und
  • Fig. 2 einen Querschnitt durch eine Prallwand mit einer möglichen Aufhängung und Befestigung.
The structure and mode of operation of an exemplary embodiment according to the invention are explained in more detail with reference to a schematic drawing. Show
  • Fig. 1 is a perspective view of an overall arrangement of a tennis practice wall and
  • Fig. 2 shows a cross section through a baffle with a possible suspension and attachment.

Wie man aus Fig. 1 ersieht, ist vor einer starren Wand 1, wie sie üblicherweise als Übungswand verwendet wird und die meist aus Beton ist, oberhalb des Tennisnetzes 2 die erfindungsgemäße Platte 3 aus gummibeschichtetem Abstandsgewebe aufgehängt.As can be seen from Fig. 1, in front of a rigid wall 1, as is usually used as a practice wall and which is usually made of concrete, the plate 3 according to the invention made of rubber-coated spacer fabric is suspended above the tennis net 2.

Wie dazu in Fig. 2 im einzelnen dargestellt ist, besteht nach dem Teilquerschnitt durch die Platte 3 das Abstandsgewebe aus den beiden Gewebebahnen 5 und 6, die über senkrecht dazu verlaufende sog. Polfäden 7 miteinander verbunden und auf konstanten Abstand gehalten sind. Die Gewebebahnen 5 und 6 sind auf ihrer Außenseite mit einer luftdichten Gummibeschichtung versehen und am umlaufenden Rand 8 abdichtend verklebt bzw. zusammenvulkanisiert. In einer Ecke der Platte 3 befindet sich ein Füllventil 9, über das die Platte 3 mittels einer Luftpumpe mit Luft gefüllt werden kann. Der dabei zweckmäßigerweise zu wählende Druck beträgt zweckmäßigerweise 0, bis 1, 5 bar, wobei durch unterschiedlichen Innendruck stufenlos die gewünschte Federcharakteristik der Platte 3 eingestellt werden kann.As shown in detail in FIG. 2, after the partial cross-section through the plate 3, the spacer fabric consists of the two fabric webs 5 and 6, which are connected to one another via so-called pile threads 7 and are kept at a constant distance from one another. The fabric webs 5 and 6 are provided on their outside with an airtight rubber coating and glued or vulcanized together at the peripheral edge 8. In a corner of the plate 3 there is a filling valve 9, via which the plate 3 can be filled with air by means of an air pump. The pressure which is expediently to be selected is expediently from 0 to 1.5 bar, the desired spring characteristic of the plate 3 being able to be set continuously by means of different internal pressures.

Die Abstandsgewebe-Platte 3 ist jetzt zweckmäßigerweise zunächst auf eine starre Rückwand 10, beispielsweise eine Sperrholz- oder Spanplatte, vollflächig aufgeklebt. Diese Rückwand 10 ist dann über an ihrer oberen Kante befestigte Bügel 11 über die stationäre Wand 1 gehängt und kann somit jederzeit leicht wieder abgenommen werden. Zweckmäßigerweise ist darüberhinaus noch der freie Spalt zwischen der Oberkante der Platte 3 und der Oberkante der starren Wand 1 mit einer Abdeckung 12 versehen, um zu verhindern, daß Bälle in diesen Zwischenraum fallen.The spacer fabric plate 3 is now expediently glued over the entire surface to a rigid rear wall 10, for example a plywood or chipboard. This rear wall 10 is then hung via brackets 11 attached to its upper edge over the stationary wall 1 and can thus be easily removed at any time. In addition, the free gap between the upper edge of the plate 3 and the upper edge of the rigid wall 1 is expediently provided with a cover 12 in order to prevent balls from falling into this intermediate space.

Gegen die so montierte Platte 3, die in etwa eine Größe von 1,5 mal 5 m aufweist und die mit einem entsprechenden Luftdruck beaufschlagt ist, können dann in herkömmlicher Weise Übungsbälle 15 geschlagen werden. Die luftgefüllte Abstandsgewebe-Platte 3 weist dabei eine erheblich höhere Rückprallelastizität als eine herkömmliche Übungswand aus starrem Material auf und kommt in ihren Eigenschaften den Verhältnissen auf dem Spielfeld mit einem echten Gegner sehr nahe. Damit werden die gewünschten Trainingsmöglichkeiten erheblich verbessert. Da die Platte 3 darüberhinaus sehr wetterfest ist, kann sie auch bei Regen im Freien belassen werden und braucht praktisch nur nach Ende der Freiluftsaison abgenommen zu werden.Practice balls 15 can then be struck in a conventional manner against the plate 3 thus assembled, which has a size of approximately 1.5 by 5 m and which is subjected to an appropriate air pressure. The air-filled spacer fabric plate 3 has a considerably higher resilience than a conventional exercise wall made of rigid material and its properties are very close to the conditions on the field with a real opponent. This significantly improves the desired training options. Since the plate 3 is also very weatherproof, it can also be left outdoors when it rains and practically only needs to be removed after the end of the outdoor season.

Claims (5)

1. Rebound wall for tennis training using an inflatable air chamber, characterised in that the air chamber forming the rebound element consists of a one- piece, low-damping rectangular sheet (3) of a spaced fabric coated with rubber and filled with air at an over-pressure of 0. 5 - 1.5 bar, the two external fabric lengths (5, 6) of which are held at constant separation by pile threads (7) extending perpendicular thereto and are joined air-tight to one another at the peripheral edge (8).
2. Rebound wall according to claim 1, characterised in that the spaced fabric sheet (3) is stuck with its entire area to a rigid back wall (1).
3. Rebound wall according to claim 1 or 2, characterised in that the spaced fabric sheet (3) is stuck with its entire area to a separate, solid plate (10), and the latter is attached to the stationary training wall (1).
4. Rebound wall according to claim 3, characterised in that the solid plate (10) supporting the spaced fabric sheet (3) is hung over the stationary training wall (1) by means of a supporting stirrup (11
5. Rebound wall according to claim 4, characterised in that the gap between the upper edge of the spaced fabric sheet (3) and the upper edge of the stationary training wall (1) is faced with a covering (12).
EP19860110516 1985-08-02 1986-07-30 Bouncing wall for tennis training Expired EP0211390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853527830 DE3527830A1 (en) 1985-08-02 1985-08-02 BALL FOR TENNIS TRAINING
DE3527830 1985-08-02

Publications (2)

Publication Number Publication Date
EP0211390A1 EP0211390A1 (en) 1987-02-25
EP0211390B1 true EP0211390B1 (en) 1989-05-24

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ID=6277567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860110516 Expired EP0211390B1 (en) 1985-08-02 1986-07-30 Bouncing wall for tennis training

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EP (1) EP0211390B1 (en)
DE (2) DE3527830A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU590304B2 (en) * 1985-07-31 1989-11-02 Harold Anderton Lightburn Practice games board
JPH01158977A (en) * 1987-08-19 1989-06-22 Chrymat Pty Ltd Rebound apparatus and rebound damper used therein
DK200600130U3 (en) * 2006-05-05 2007-08-24 Presenco As Trampoline
NL2010156C2 (en) * 2013-01-21 2014-07-23 Ind B V Ag SPORTS WALL.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148401B2 (en) * 1971-09-28 1980-03-27 Metzeler Kautschuk Ag, 8000 Muenchen Flexible hollow body that can be filled with a flowable medium
GB1422718A (en) * 1973-02-19 1976-01-28 Stockman A O G Ball returning target for practising ball games
US3989246A (en) * 1973-12-14 1976-11-02 Brown Alvin I Tennis practice system
DE3106135A1 (en) * 1981-02-19 1982-09-09 Gustavo Santos Practice wall for ball games

Also Published As

Publication number Publication date
EP0211390A1 (en) 1987-02-25
DE3527830A1 (en) 1987-02-05
DE3663451D1 (en) 1989-06-29

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