EP0210539A1 - Appareil pour jouer à la balle avec une parois de rebond fixée sur un support portatif - Google Patents

Appareil pour jouer à la balle avec une parois de rebond fixée sur un support portatif Download PDF

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Publication number
EP0210539A1
EP0210539A1 EP86109730A EP86109730A EP0210539A1 EP 0210539 A1 EP0210539 A1 EP 0210539A1 EP 86109730 A EP86109730 A EP 86109730A EP 86109730 A EP86109730 A EP 86109730A EP 0210539 A1 EP0210539 A1 EP 0210539A1
Authority
EP
European Patent Office
Prior art keywords
baffle
frame
ball
tripod
legs
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.)
Granted
Application number
EP86109730A
Other languages
German (de)
English (en)
Other versions
EP0210539B1 (fr
Inventor
Julius Meurer
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
Priority to AT86109730T priority Critical patent/ATE52932T1/de
Publication of EP0210539A1 publication Critical patent/EP0210539A1/fr
Application granted granted Critical
Publication of EP0210539B1 publication Critical patent/EP0210539B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A63B69/38—Training appliances or apparatus for special sports for tennis
    • 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

Definitions

  • the invention relates to a device for ball games with a baffle arranged on a portable frame.
  • a device of the above type which has a board-like baffle.
  • Such a device can be used, for example, for practicing tennis or squash strokes by a single player.
  • the known device has the disadvantage that the player has to play the baffle relatively steeply so that the ball he is playing is reflected at a reflection angle in which the player can still reach it for a next setback.
  • the player can therefore only use the relatively limited area of the baffle, from which the ball is reflected at the desired angle, so that the player is required to be accurate, which he can not muster with repeated repetitions of punching exercises.
  • the ball struck by the player is reflected by the impact wall at such a speed at such a speed that the player cannot react so quickly and can switch from a striking position to a position from which he can take the reflected ball.
  • the invention has for its object a device gangs mentioned to improve its playing characteristics.
  • the baffle has a front surface in the form of a spherical cap and that a frame which surrounds the baffle and is held on the frame is provided, on which the baffle is held with at least one flexible fastening element.
  • the front surface of the baffle designed according to the invention as a spherical cap, has particularly advantageous reflection properties and thus advantageous playing properties. If a player strikes a ball against the baffle from a standing line that has a distance from the baffle that corresponds approximately to the radius of curvature of the spherical cap, the ball passes a certain focal point on its path of reflection. Such a focal point always exists, regardless of the area in which the ball hits the front surface of the baffle and the angle at which the player stands to the front surface of the baffle. For this reason, the player always knows exactly at which point he can expect the reflected ball to strike back. Two players can also play the ball in an advantageous manner, in that each player stands in the area of the focal point that the other player struck the ball passes.
  • the device according to the invention thus ensures precise playing and playback without the player having to hit a certain area of the front surface of the baffle so that the player can concentrate on his striking technique and can use the entire front surface of the baffle.
  • the flexible fastener with which the baffle is held on the frame advantageously ensures that the baffle wall yields by giving in the flexible fastening element when a struck ball hits it and then returns to its rest position.
  • the speed of the impacting ball before the reflection is damped, the harder the ball has been hit, so that the reflected ball advantageously has only a moderate speed and can be easily struck back even with strong hits.
  • the return of the baffle to its rest position after retreating and the damping are caused in part by the air resistance of the air behind the baffle, the air being somewhat compressed when the baffle retracts.
  • the baffle itself is preferably designed to be unyielding and rigid.
  • the baffle has a margin for retreating when a ball hits, in a particularly advantageous manner in a preferred embodiment of the device, in which several fastening elements are arranged along the edge of the frame and are spaced apart from one another and with which the baffle is suspended in the frame.
  • the fastening elements are designed to be elastically resilient, preferably as elastic bands, so that restoring forces and damping forces also act on the baffle wall when the baffle wall is deflected due to the fastening elements themselves.
  • the radius of curvature of the spherical cap in a preferred embodiment is approximately 6 to 8 m, preferably 7 m, and the diameter of the circular outer edge of the spherical cap is approximately 2 m.
  • the best game distance from the baffle corresponds approximately to the radius of curvature. This game distance is approximately 7 m approximately the normal playing conditions in tennis or squash.
  • the spherical cap which has a surface diameter of approximately 2 m, can be easily hit by inexperienced players from this distance and is small enough to be transported by the player through front doors or the like.
  • the baffle is preferably provided with polyester reinforced with glass fiber.
  • the baffle can be adjusted to the size of the respective player and optionally high or low balls can be practiced, the baffle can be adjusted in its inclination to the vertical according to a development of the invention to improve the playing properties of the device according to the invention.
  • the frame is preferably a tripod, the legs of which form approximately a tetrahedron, of which two legs are connected to one another by the frame of the baffle and the third leg of which is adjustable in length for adjusting the inclination of the baffle.
  • the device according to the invention can have a joint via which the legs of the tripod are connected to one another at their upper ends, as a result of which the inclination of the baffle wall is also adjustable and as a result of which the frame is advantageously designed to be collapsible.
  • a device according to the invention is shown in a front view in FIG.
  • the device has a frame 2 arranged on a frame 1, which holds a baffle 3.
  • the frame 1 is designed as a tetrahedral tripod, and the frame 2 is arranged on two legs 4b, c of the tripod, while the third leg 4a of the tripod legs 4b, c of the tripod and the frame 2 arranged thereon at a predetermined angle of inclination to the vertical holds.
  • the frame 2 and the baffle wall 3 held therein have a circular outline and the baffle wall 3 is resiliently suspended in the frame 2 with a plurality of fastening elements 6 arranged at intervals along its edge.
  • the fasteners 6 are arranged on the edge of the baffle 3 rubber bands that wrap around the profile of the frame 2.
  • a ball opening 7 In the center of the baffle 3 there is a ball opening 7 through which a ball can be played.
  • a ball catch 8 is arranged behind the ball opening 7 and acts as a ball opening 7 spanning network is formed.
  • FIG. 2 shows a side view of the device of FIG. 1, in which the baffle 3 is shown in a longitudinal section.
  • the same components are identified by the same reference numerals as in FIG. 1.
  • Fig. 2 it can be seen in particular that the front surface 9 of the baffle 3 is concave in the form of a spherical cap. Furthermore, it can be seen that the two front legs 4b, c of the tripod with the third, rear leg 4a of the tripod are connected to one another via a joint 10, which collapses the frame 1 and adjusts the angle of inclination of the baffle wall 3 with respect to the vertical allowed.
  • the rear leg 4a of the tripod has an extension section 11 which can be pushed in and pushed out, which is equipped with locking elements which fix its extended position and which also changes the angle of inclination of the baffle 3 even at a constant angle between the front legs 4b, c and the rear leg 4a of the tripod allowed, so that the joint 10 is not absolutely necessary.
  • the front legs 4b, c can be connected to the rear leg 4a on the frame 1, connecting elements, bands, chains, rods or the like which can be adapted to the angular position of the joint 10 , be provided.
  • Fig. 3 shows a cross section of the baffle 3 with frame 2, but without frame 1 and without ball catch 8, to make the special spatial shape of a spherical cap of the front surface 9 of the baffle 3 clear again.
  • the same components are designated with the same reference numbers as in the previous figures.
  • Fig. 4 the baffle 3 is indicated schematically, as shown in Fig. 3, wherein it is made clear by a circular arc 12 that the baffle 3 has the shape of a spherical cap.
  • Dashed lines indicate examples of ball trajectories 13 along which a ball, for example a tennis ball, would fly, which would be knocked off from a teeing point 14 in the direction of the outer edges of the baffle 3.
  • Fig. 4 it can be seen that the ball regardless of the ball trajectory 13, provided that it has no swirl, is reflected on the baffle 3 according to the law of reflection, angle of incidence equal to angle of reflection, and flies through a focal point 15, in which all Unite ball trajectories 13.
  • the device according to the invention is particularly suitable for two players who stand on opposite sides of the normal to the center surface 16 of the baffle 3 and pass a ball to each other because the ball flies through a focal point which is dependent on the distance between the players, regardless of the teeing angle from the baffle 3, for example focal point 15, and is thus calculable for the players.
  • FIG. 5 shows a diagram similar to that in FIG. 4, but in a side view.
  • the baffle in this example has an inclination angle of 10 * to the vertical. 5 shows that a ball, depending on whether it is hit from a lower tee 17 or from a higher tee 18, flies along dashed ball trajectories 19, 20 which intersect at a focal point 21, so that a hit ball can also be calculated in its flight height.

Landscapes

  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Pinball Game Machines (AREA)
  • Toys (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Vehicle Body Suspensions (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Finishing Walls (AREA)
  • Finger-Pressure Massage (AREA)
  • Confectionery (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Tents Or Canopies (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP86109730A 1985-07-27 1986-07-16 Appareil pour jouer à la balle avec une parois de rebond fixée sur un support portatif Expired - Lifetime EP0210539B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109730T ATE52932T1 (de) 1985-07-27 1986-07-16 Geraet fuer ballspiele mit einer an einem transportablen gestell angeordneten prallwand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853526956 DE3526956A1 (de) 1985-07-27 1985-07-27 Geraet fuer ballspiele
DE3526956 1985-07-27

Publications (2)

Publication Number Publication Date
EP0210539A1 true EP0210539A1 (fr) 1987-02-04
EP0210539B1 EP0210539B1 (fr) 1990-05-23

Family

ID=6276965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109730A Expired - Lifetime EP0210539B1 (fr) 1985-07-27 1986-07-16 Appareil pour jouer à la balle avec une parois de rebond fixée sur un support portatif

Country Status (10)

Country Link
US (1) US4743020A (fr)
EP (1) EP0210539B1 (fr)
JP (1) JPS6331686A (fr)
KR (1) KR870000946A (fr)
AT (1) ATE52932T1 (fr)
AU (1) AU585773B2 (fr)
BR (1) BR8603526A (fr)
DE (2) DE3526956A1 (fr)
ES (1) ES2000554A6 (fr)
PT (1) PT83072B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU636331B2 (en) * 1989-02-20 1993-04-29 Philip Gerard Way Apparatus for playing a game
US5333855A (en) * 1992-07-20 1994-08-02 Connie J. Silin Baseball pitching analyzer
US5527032A (en) * 1994-04-01 1996-06-18 Ballwall, Inc. Multiple sport practice system
USD375528S (en) 1995-10-06 1996-11-12 Raines Lynn F Pitching target and return apparatus
GB9524277D0 (en) * 1995-11-28 1996-01-31 Dance L A The lofted rebound wall
US5709620A (en) * 1996-03-27 1998-01-20 Reinprecht; Christine K. Sport court training target assembly
AU4231697A (en) 1996-08-19 1998-03-06 Lievens Group, L.L.C. Ball rebound net
USD679346S1 (en) * 2010-05-06 2013-04-02 DD Company AB Exercise aid
ES2608204B2 (es) * 2015-10-06 2017-08-08 Universidad De Extremadura Portería multiusos para espacios deportivos reducidos y cerrados
US20170340938A1 (en) * 2017-06-14 2017-11-30 James A. Hefti Device, system and method for use with a ball game
USD1014631S1 (en) * 2020-07-23 2024-02-13 Lark Henders Yard game

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1286326A (en) * 1968-09-18 1972-08-23 Tranly Walls And Mini Courts P Improvements relating to wall structures for the practise of ball games
DE2542984A1 (de) * 1975-09-26 1977-03-31 Spannbetonwerk Koch Kg Uebungstenniswand mit parabolischer spielflaeche
DE2558968A1 (de) * 1975-12-29 1977-07-07 Dietrich Steinkopff Wand fuer ballspiele
US4421318A (en) * 1982-04-01 1983-12-20 David Sverdlik Adjustable rebound apparatus
GB2141941A (en) * 1982-12-24 1985-01-09 Charles William Dransfield Rebound screen for ball games

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1568013A (en) * 1924-10-03 1925-12-29 Warfield Howard Chapin Game
US2021989A (en) * 1931-12-08 1935-11-26 Master Matthew J De Ball tossing game
US2179471A (en) * 1939-04-15 1939-11-07 Martin L Lee Game
US2482234A (en) * 1945-10-05 1949-09-20 Raymond L Barker Resilient target
US2944816A (en) * 1960-03-21 1960-07-12 Jack R Dixon Recreational apparatus
US3231280A (en) * 1962-10-19 1966-01-25 Coliins William Golf driving station and wheeled putting green target
GB1150685A (en) * 1967-04-11 1969-04-30 Nigel Schollick Golf Practising Device
US3511503A (en) * 1968-05-31 1970-05-12 Michael A Volpe Amusement device with changeable support means
US3741549A (en) * 1971-07-28 1973-06-26 F Wilson Golf target
US3810616A (en) * 1972-12-26 1974-05-14 L Murphy Target apparatus with ball catching means
US3895809A (en) * 1974-08-19 1975-07-22 Lawrence Peska Ass Inc Ball return device
US4497485A (en) * 1984-06-04 1985-02-05 Macosko Robert L Baseball pitching target
US4625974A (en) * 1984-12-31 1986-12-02 Frank Andrews Outdoor game cabinet
AU590304B2 (en) * 1985-07-31 1989-11-02 Harold Anderton Lightburn Practice games board
AU599763B2 (en) * 1987-03-09 1990-07-26 Harry Fritz Boikowski Improvements relating to sporting equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1286326A (en) * 1968-09-18 1972-08-23 Tranly Walls And Mini Courts P Improvements relating to wall structures for the practise of ball games
DE2542984A1 (de) * 1975-09-26 1977-03-31 Spannbetonwerk Koch Kg Uebungstenniswand mit parabolischer spielflaeche
DE2558968A1 (de) * 1975-12-29 1977-07-07 Dietrich Steinkopff Wand fuer ballspiele
US4421318A (en) * 1982-04-01 1983-12-20 David Sverdlik Adjustable rebound apparatus
GB2141941A (en) * 1982-12-24 1985-01-09 Charles William Dransfield Rebound screen for ball games

Also Published As

Publication number Publication date
PT83072B (pt) 1992-08-31
DE3526956A1 (de) 1987-01-29
ES2000554A6 (es) 1988-03-01
EP0210539B1 (fr) 1990-05-23
AU585773B2 (en) 1989-06-22
ATE52932T1 (de) 1990-06-15
JPS6331686A (ja) 1988-02-10
KR870000946A (ko) 1987-03-10
BR8603526A (pt) 1987-03-04
US4743020A (en) 1988-05-10
AU6059086A (en) 1987-01-29
PT83072A (fr) 1986-08-01
DE3671382D1 (de) 1990-06-28

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