EP3169413B1 - Tennis training device - Google Patents

Tennis training device Download PDF

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Publication number
EP3169413B1
EP3169413B1 EP15735677.5A EP15735677A EP3169413B1 EP 3169413 B1 EP3169413 B1 EP 3169413B1 EP 15735677 A EP15735677 A EP 15735677A EP 3169413 B1 EP3169413 B1 EP 3169413B1
Authority
EP
European Patent Office
Prior art keywords
stop
support rod
unit according
ball
profile bar
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.)
Active
Application number
EP15735677.5A
Other languages
German (de)
French (fr)
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EP3169413A1 (en
Inventor
Josef Dagn
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Individual
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Individual
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Priority to PL15735677T priority Critical patent/PL3169413T3/en
Publication of EP3169413A1 publication Critical patent/EP3169413A1/en
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Publication of EP3169413B1 publication Critical patent/EP3169413B1/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/38Training appliances or apparatus for special sports for tennis
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B43/00Balls with special arrangements
    • A63B43/008Balls with special arrangements with means for improving visibility, e.g. special markings or colours
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/0073Means for releasably holding a ball in position; Balls constrained to move around a fixed point, e.g. by tethering
    • A63B69/0091Balls fixed to a movable, tiltable or flexible arm
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • A63B71/023Supports, e.g. poles
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0063Shock absorbers
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • A63B71/023Supports, e.g. poles
    • A63B2071/025Supports, e.g. poles on rollers or wheels
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • A63B71/023Supports, e.g. poles
    • A63B2071/026Supports, e.g. poles stabilised by weight
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B2071/0694Visual indication, e.g. Indicia
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/008Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
    • A63B21/0085Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters
    • A63B21/0087Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters of the piston-cylinder type
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00Characteristics of used materials
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00Characteristics of used materials
    • A63B2209/08Characteristics of used materials magnetic
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/50Force related parameters
    • A63B2220/51Force
    • A63B2220/53Force of an impact, e.g. blow or punch
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09Adjustable dimensions
    • A63B2225/093Height

Definitions

  • the invention relates to a tennis training device.
  • DE 20 2011 107 013 describes a tennis training device that is designed in particular for practicing slice and topspin punches. It is provided a handlebar which is pivoted against spring force and articulated to a horizontally movable carriage, wherein a mounted at the free end of the handle bracket rotatably holds the ball and the carriage is slidable in a longitudinal guide against spring force.
  • US 5,393,050 A discloses a tennis training apparatus having a rigid support bar hinged to a base at the free end of which the ball is mounted.
  • the support rod is pivotable between two stops on the base.
  • US 4 531 743 A describes a similar tennis training device with a rigid support bar for the ball, which is pivotable between stops on a base.
  • US 5 685 542 A describes a tennis training device in which the ball-carrying rod is flexible and hinged to a base pivotally.
  • the invention has the object of developing a tennis training device so that essentially all types of punches including forehand and backhand shots can be practiced.
  • the tennis training device comprises a hinged to a base support rod which is pivotable between a first and a second stop and a pivotally projecting from the support rod profile rod carries at its free end a ball is rotatably mounted, wherein the second stop in the direction of impact against a force is supported pivotably, for example against a spring force, so that a deflection of the voltage applied to the second stop support rod in the direction of impact is possible, which is braked by the opposing force.
  • the second stop can be pivotally supported in the impact direction by an adjustable counterweight, which is moved by a pivoting movement of the second stop, is preferably pivoted.
  • the force acting on the second stopper can be formed by a rotatable counterweight mounted on the circumference of a disc which is connected to the stop via a cable pull.
  • the force of the rotatable counterweight can be influenced by a curve on the disc, along which the cable runs.
  • the support rod between two bearing blocks forming a plate can be mounted pivotably.
  • the bearing block is preferably mounted on a base plate which is pivotable about an upright pivot axis by an adjusting device relative to a stationary structure and can be fixed in the pivoting position.
  • the base plate is pivotable on a pivotable plate in a small angular range, wherein at a distance from each other arranged magnets allow a swinging of the bearing block between the magnets.
  • the profile bar is advantageously designed to be longer than the support rod and it is pivotable between stops on the support rod, so that the profile bar already makes a deflection in the direction of impact after a blow to the ball before the support rod is pivoted. So that the profile bar is not touched when swinging the tennis racket of this, the profile bar is advantageously curved.
  • the pivotable mounting of the profile bar on the support rod is advantageously along the support rod adjustable, for example by an adjustable on the support rod sleeve, which can be firmly connected in the respective position with the support rod.
  • the training device can be arranged stationary, Preferably, the device is arranged in a housing which is height adjustable via a linkage on a chassis, wherein the chassis can be locked on the ground.
  • Various sensors and an electronic memory device can be provided by which parameters of the ball movement are recorded and stored so that the ball movement can be reproduced after a hit with the tennis racket on the ball on a monitor.
  • the ball is rotatably mounted with different colors on the ball circumference at the free end of the profile bar, so that based on the different coloring of the ball, the direction of rotation after a strike is visually easily recognizable.
  • the ball is formed by two half shells, which are preferably made of foamed material such as polyurethane foam.
  • Fig. 1 is denoted by 1 a ball which is rotatably mounted at 2 preferably by a ball bearing at the end of a curved in the direction of impact profile bar 3, for example an aluminum rectangular tube with a rotation axis perpendicular to the plane of the drawing
  • the profile bar 3 is rigid and its opposite end is at 4 pivotally mounted at the upper end portion of a support rod 5, which consists for example of an aluminum rectangular tube.
  • the curvature of the profile bar 3 is designed so that when a slice hit the racket can swing freely after hitting the ball and by the pivoted profile bar 3 (FIG. FIGS. 3 and 4 ) is not hindered.
  • Fig. 9 schematically shows the storage of a constructed of two half-shells 1a and 1b ball 1, the outer surface is preferably designed two-tone, so that after a topspin or slice hit the rotational movement of the ball is clearly visible.
  • the two half-shells 1a and 1b of the ball are preferably made of foamed material, for example polyurethane foam, each half-shell between a Holding disk 1.1 and a flange 1.2 is held on a shaft 1.3, as Fig. 9a
  • the shaft 1.3 is formed in two parts, with a reduced diameter portion engages in a sleeve-shaped part 1.31, as shown FIGS. 9a and 9b is apparent.
  • the two retaining disks 1.1 are fastened by screws to the shaft and the two fixedly connected half-shells are supported by a ball bearing 2, which is arranged on the reduced diameter portion of the shaft 1.3.
  • the pivotable mounting 4 of the profile bar 3 can be attached to a sleeve 4.1 ( FIG. 10 ), which is adjustable along the support rod 5, wherein the sleeve 4.1 is firmly connected in the respective position with the support rod 5.
  • stops are provided suitably, between which the profile bar 3 is pivotable relative to the support rod 5, wherein the stops are suitably provided with an elastomer coating or with a damping pad,
  • Fig. 1 shows an upper damper 4a with an elastomeric pad which is fixedly connected to the support rod 5. Furthermore, a lower damper 4b is fixedly connected to the support rod 5, on which the profile bar 3 in the in Fig. 1 rest position shown rests.
  • a spring action can be provided, which is a pivotal movement of the profile bar 3 from the position of Fig. 1 in the position of Fig. 4 counteracts and the profile bar 3 from the pivot position in Fig. 4 back to the starting position of the Fig. 1 pushes back
  • a leaf spring can be provided on the bearing 4, which acts on the pivoting movement of the profile bar 3 to ensure an elastic impact of the racket on the ball 1.
  • Fig. 2 to 4 show the basic structure of the articulation of the support rod 5 on a base plate 100, wherein Fig. 2 the starting position in Fig. 1 equivalent.
  • the support rod 5 is pivotally mounted at the lower end in or on a bearing block 6 at 7.
  • the bearing block 6 may consist of two cross-sectionally L-shaped aluminum plates, wherein the shorter legs are attached to the base plate 100.
  • the pivoting movement of the support rod 5 against the direction of impact is limited by a first stop 8, the support rod 5 is in the starting position of the Fig. 1 and 2 with its lower end to the first stop 8, which in the embodiment of the Fig. 1 to 4 is designed as a gas spring
  • a gas spring 8 may also be another stop preferably provided with a damping effect, as shown in the other embodiments, which are described below.
  • the support rod 5 hits after a blow with the tennis racket on the ball 1 in Fig. 3 in its pivoting movement in the clockwise direction about the articulation point 7 on a second stop 9, which is pivotally mounted in the first embodiment on the bearing block 6 at 9.2.
  • the second stop 9 is formed by a strut 9.1 with an elastomeric pad 9.3 at the free end, on which the support rod 5 impinges during its pivoting movement,
  • the second stop 9 is resiliently supported with a counterforce, as described below with reference to FIGS. 5 and 6 is explained in more detail.
  • Fig. 4 shows the end position of the pivotal movement of the support rod 5 after performing a strike on the ball 1, wherein the second stop 9 rests on a third stop 10, which is fixedly arranged on the base plate 100 and provided with a damping pad 10a.
  • the support rod 5 is cushioned in two respects, once by the damping pad 9.3 and the damping pad 10a on the third stop 10th
  • Fig. 3 shows the system of the support rod 5 at the second stop 9, after a blow was carried out on the ball 1.
  • the support rod 5 moves substantially freely between the two stops 8 and 9. Only when conditioning the support rod 5 to the second Stop 9, after no contact exists between Ball 1 and tennis rackets, the support rod 5 is further pivoted against the action of force by the force of the blow executed, In Fig. 2 is the second stop 9 still in the starting position of Fig. 1 ,
  • the second stop 9 can be supported by a linkage or a link mechanism, which acts on a counterweight 11 and transmits the pivotal movement of the second stop 9 on this counterweight 11, for example by leverage, like this Fig. 10 and 14 demonstrate,
  • the damping stop 9 is acted upon via a rotatably mounted counterweight 11, the in Fig. 1 mounted on a disc 12 which is connected via a cable 13, preferably a plastic-coated wire rope, with the free end of the damping stop 9 to the stop 9 from the end position in Fig. 4 and 6 in the position in Fig. 2 and 5 move back,
  • a disc 12 is preferably rotatably supported preferably made of aluminum, on the circumference of the counterweight 11 is applied from the circumference of the two discs 12, the cable 13 leads to the upper end of the damping stop 9, so when pivoting the damping stop 9 by the support rod. 5 the discs 12 in a clockwise direction FIGS. 5 and 6
  • the counterweight 11 acts to damp the pivoting movement of the support rod 5, as soon as the damping stop 9 is pivoted by the support rod 5,
  • the cable 13 is guided on the two discs 12 along a curve, in particular along a helically shaped recess 12a through which the rotational movement of the disc 12 with counterweight 11 during the initial pivoting of the damping stop 9 only slowly and then always stronger, the farther the damping stop 9 is pivoted clockwise
  • the device From the end position in Fig. 4 and 6 the device is automatically returned to the starting position of the Fig. 1, 2 and 5 moved back by the force applied to the discs 12 counterweight 11, the discs 12 in the counterclockwise direction and thus pivots the damping stop 9 by means of the cable 13 in the counterclockwise direction, which entrains the support rod 5.
  • the weight of the protruding from the support rod 5 profile bar 3 acts on the support rod 5 such that it continues in the counterclockwise direction in the starting position of the Fig. 5 and 2 moved back, wherein the lower end of the support rod 5 comes to rest on the preferably cushioned stop 8 in particular in the form of the gas spring and is braked.
  • the gas spring 8 is used to ensure that the retrieval of the ball 1 runs at a uniform speed and the ball 1 again calm in the starting position of the Fig. 1 lies.
  • a stop 11a is provided for the counterweight 11 in the end position, which in Fig. 1 is reproduced on the base plate 100.
  • Fig. 7a shows a plan view of the base plate 100 with bearing block 6, wherein for clarity, the discs 12 are omitted with counterweight 11.
  • Fig. 7b shows a plan view of the base plate 100 accordingly Fig. 1 and 5 with counterweight 11 and 12 washers.
  • the bearing block 6 of two mutually parallel L-sections 6.1 and 6.2 is preferably formed of aluminum, between which the support rod 5 is pivotable on a bearing pin 7.
  • the bearing block 6 is mounted on the base plate 100, which is a in Fig. 1 at 100a indicated storage in the plane of the Fig. 7a is pivoted to the right and left relative to a stationary structure 200, which in the illustrated embodiment, the housing 200 explained in more detail below is on a chassis.
  • Fig. 7a is located perpendicular to the plane lying pivot axis 100a of the base plate 100 in the region of the support rod 5, as seen from Fig. 1 is apparent.
  • a projection 100.1 made of ferromagnetic material is provided, which is in the rest position between two magnets 102 at a distance from these.
  • the two magnets 102 are arranged on a plate 100 ', on which the base plate 100 in a certain range laterally is arranged movable or pivotable, so that the base plate 100 in a certain range relative to the plate 100 'can vibrate and vibrate horizontally when the ball 1 is hit on the profile bar 3 slightly laterally to the pivot plane of the support rod 5 and thus a lateral force in the Bearing 6 is initiated. After a lateral deflection of the base plate 100 relative to the plate 100 'is the base plate 100 by the magnet 102 back into the in Fig. 7a reproduced middle position brought.
  • a handwheel 300 is rotatable about which a toothed belt 301 is guided, which guided over pulleys 302 and the ends of the in Fig. 7a upper end of the plate 100 'is attached at 303.
  • a detent is provided on the circumference of the handwheel 300 to allow the handwheel 300 to be fixed in an intended pivot position,
  • a double arrow P is in Fig. 7a indicated that the plate 100 'can be pivoted with the base plate 100 in both pivoting directions relative to the stationary structure 200,
  • Fig. 7b shows the same view as Fig. 7a but with the discs 12 are shown with counterweight 11.
  • the counterweight 11 connects in this embodiment, the two discs 12 so that they form a unit which is connected via the wire ropes 13 with the second stop 9, the in Fig. 7b is not reproduced.
  • Fig. 8 shows a side view of an apparatus in which the training device is mounted on a height-adjustable chassis.
  • the training device with base plate 100 is mounted on the bottom plate 200 of a box-shaped housing 200a, which is articulated via two links 201a and 201b to a chassis 202 to which lockable wheels 202.1 and a handle 202.2 mounted on a handle for movement are mounted between Steering 201a and the front portion of the chassis 202, a gas spring 203 is attached, which supports the pivoting action of the housing 200a relative to the chassis 202.
  • Denoted by 204 is a strut between the handlebar 201a and the chassis 202, by means of which the respective height position of the housing 200a relative to the chassis 202 can be fixed at 204a.
  • Fig. 8b shows a lowered position of the training device and Fig. 8a a raised position.
  • the described training device can be provided with electrical sensors and software, can be registered by the details or parameters of a blow on the ball 1 and displayed for example on a monitor with printer and printed.
  • a battery for the electrical power supply of the electronic components may be provided and an electric motor for driving the height adjustment of the frame.
  • Fig. 10 shows a schematic side view of a second embodiment in which the second stop 9 is supported via a link assembly 17 by a displaceable on a roller 15 counterweight 11
  • the pivotal movement of the profile bar 3 limiting stops are omitted at the pivot point of the profile bar 3 on the support rod 5.
  • the Fig. 11 to 13 correspond to the relative position of the individual parts of the device the 3 and 4 the first embodiment.
  • the stops 8 and 9 are formed as rollers, which may consist of an elastomeric material, wherein the second stopper 9 acts via a link mechanism 17, 17a against a counterweight 11 which rests on the roller 15.
  • the link mechanism has an acute-angled formed Lever 17, which is hinged at one end at 17.1 on the bearing block 6 or, on the base and is pivotally connected to the opposite end at 17.2 with one end of the elongated counterweight 11.
  • the angled portion 17.3 of the lever 17 serves as a support on the base B in the rest position
  • This embodiment can also be positioned vertically adjustable on a frame 200, 202.
  • Fig. 14 schematically shows a third embodiment
  • Denoted at 20 is a bearing B fixed at the free end of a double-armed lever 21 approximately in the middle at 21.1 ( Fig. 15 ) is pivotally mounted
  • the left end of the double-armed lever 21 is pivotally connected at 21.2 with a handlebar 24 which is hinged to the second stop 9 at 24.1
  • the opposite end of the two-armed lever 21 is pivotally connected at 21.3 with a preferably rod-shaped counterweight 11, for example a metal cylinder which rests on a roller 15, preferably a rubber roller, which is rotatably mounted via a bearing at 15.1 on the base B.
  • Fig. 14 In the starting position of the Fig. 14 is the two-armed lever 21 slightly obliquely relative to the longitudinal axis of the counterweight 11 and the longitudinal axis of the arm 14, so after further pivotal movement of the support rod 5 in a clockwise direction in Fig. 15 the left end of the double-armed lever 21 is pressed down by the handlebar 14 and the right end of the lever 21 is pivoted upward, this end of the lever 21, the counterweight 11 pulls under rolling on the roller 15 upwards.
  • Fig. 16 shows a possible end position of the ball 1 after a strong blow, the lever 21 is pivoted counterclockwise and the counterweight 11 is relatively far raised, so that the lower end portion of the rod-shaped counterweight 11 rests on the roller 15.
  • the evasive movement of the profile bar 3 in conjunction with the curved shape, as in Fig. 16 is used, above all, to allow a space for the club swing after performing a slice hit.
  • Fig. 14 shows on the basis of B an abutment 16 for the counterweight 11, which rests in the initial position on a damping 16.1 with the free end, wherein the counterweight 11 is held by the roller 15 in an inclined position to the lever 21.
  • a damper 8.1 in Fig. 15 can also be a hydraulic damper 8a ( Fig. 14 ) to be mounted on the bearing block 6, which forms the first stop and the support rod 5 with the ball 1 without nachzufedern returns to the starting position when the support rod 5 swings back after applying the second movable stopper 9.
  • Fig. 17 schematically shows a side view of the training device of the first embodiment with a housing accordingly Fig. 8 in that a cover hood 200b is provided above the base plate 100, which protects the structure on the base plate 100 from dust and dirt, especially after the pivoting of the support bar 5 in the initial phase of impact on the ball 1, as smoothly as possible and without resistance,
  • Fig. 18 shows, pivoted by means of which the base plate 100 with the support rod 5 can be.
  • Fig. 18 shows a pivoting to the left and a pivoting to the right relative to the housing 200.
  • a plastic plate 400 is movably mounted, which has a metal frame 401 with a central longitudinal slot 402, along which the support rod 5 is movable.
  • a brush cover 403 is preferably made of glass fibers, through which the movement of the support rod 5 along the slot 402 as little as possible obstructed,
  • the glass fibers extend from both sides of the slot 402 provided bars 404th approximately to the middle of the slot, so that the support rod 5 can move without appreciable resistance along the slot 402.
  • Fig. 19 schematically shows the articulation of the device on the bottom plate 200 of the housing in Fig. 8 with the in Fig, 1 at 100a indicated pivot axis,
  • a hinge pin 500 is rotatably inserted, on which a nut 501 and a lock nut 502 are screwed.
  • a Teflon disc 503 is provided, by which the friction between the bottom plate 200 and nut 501 is kept low.
  • the hinge pin 500 is rotationally fixed in a bore of the plate 100 'is pressed, which is pivotable about the axis of the hinge pin 500 by the handwheel 300 and the toothed belt 301 relative to the bottom plate 200
  • a plastic plate 504 used to reduce friction Over the plate 100 ' the base plate 100 of the device is pivotally mounted on the hinge pin 500, so that the base plate 100 relative to the plate 100' between the magnet 102 on the plate 100 'is pivotable.
  • another plastic plate is provided between the base plate 100 and the friction reduction plate 100 '.
  • the plate 100 ' By rotating the handwheel 300, the plate 100 'can be pivoted relative to the bottom plate 200 of the housing, the base plate 100, on which the bearing block 6 is fixed, taken by their approach 100.1 between the mounted on the plate 100' magnet 102 in the pivot position becomes,
  • the exercise device described can be used as a home trainer in the basement or in a garage, but also serve as a support for a tennis teacher, the device can be used in particular for practicing topspin, lob and slices.
  • the ball rotation is reflected in topspin and slice strokes optically by the color change on the ball
  • an electronic speed measurement on the ball is possible, with the speed of the ball can be displayed on a display, not shown. Since the ball 1 is always positioned in the starting position in the same position, the club swing can be automated.
  • a spring structure can be provided which supports the second stop 9 resiliently via the link mechanism 10 and 10a.

Description

Die Erfindung betrifft ein Tennis-TrainingsgerƤt.The invention relates to a tennis training device.

DE 20 2011 107 013 beschreibt ein Tennis-TrainingsgerƤt, das insbesondere zum Ɯben von Slice- und Topspin-SchlƤgen ausgebildet ist. Es ist ein Lenker vorgesehen, der gegen Federkraft verschwenkbar und an einem horizontal verfahrbaren Schlitten angelenkt ist, wobei eine am freien Ende des Lenkers angebrachte Halterung den Ball drehbar hƤlt und der Schlitten in einer LƤngsfĆ¼hrung gegen Federkraft verschiebbar ist. DE 20 2011 107 013 describes a tennis training device that is designed in particular for practicing slice and topspin punches. It is provided a handlebar which is pivoted against spring force and articulated to a horizontally movable carriage, wherein a mounted at the free end of the handle bracket rotatably holds the ball and the carriage is slidable in a longitudinal guide against spring force.

US 5 393 050 A offenbart ein Tennis-TrainingsgerƤt mit einer an einer Basis angelenkten starren TrƤgerstange, an deren freiem Ende der Ball angebracht ist. Die TrƤgerstange ist zwischen zwei AnschlƤgen an der Basis verschwenkbar. US 5,393,050 A discloses a tennis training apparatus having a rigid support bar hinged to a base at the free end of which the ball is mounted. The support rod is pivotable between two stops on the base.

US 4 531 743 A beschreibt ein Ƥhnliches Tennis-TrainingsgerƤt mit einer starren TrƤgerstange fĆ¼r den Ball, die zwischen AnschlƤgen an einer Basis verschwenkbar ist. US 4 531 743 A describes a similar tennis training device with a rigid support bar for the ball, which is pivotable between stops on a base.

US 5 685 542 A beschreibt ein Tennis-TrainingsgerƤt, bei dem die den Ball tragende Stange flexibel gestaltet und an einer Basis verschwenkbar angelenkt ist. US 5 685 542 A describes a tennis training device in which the ball-carrying rod is flexible and hinged to a base pivotally.

Der Erfindung liegt die Aufgabe zugrunde, ein Tennis-TrainingsgerƤt so weiterzubilden, dass im Wesentlichen alle Arten von SchlƤgen einschlieƟlich Vorhand- und RĆ¼ckhandschlƤge geĆ¼bt werden kƶnnen.The invention has the object of developing a tennis training device so that essentially all types of punches including forehand and backhand shots can be practiced.

Diese Aufgabe wird durch die Merkmale im Anspruch 1 gelƶst.This object is solved by the features in claim 1.

Das erfindungsgemƤƟe Tennis-TrainingsgerƤt umfasst eine an einer Basis angelenkte TrƤgerstange, die zwischen einem ersten und einem zweiten Anschlag verschwenkbar ist und einen von der TrƤgerstange abstehenden Profilstab verschwenkbar trƤgt, an dessen freiem Ende ein Ball drehbar gelagert ist, wobei der in Schlagrichtung zweite Anschlag gegen eine Kraft verschwenkbar abgestĆ¼tzt ist, beispielsweise gegen eine Federkraft, sodass eine Auslenkung der an dem zweiten Anschlag anliegenden TrƤgerstange in Schlagrichtung mƶglich ist, die durch die Gegenkraft abgebremst wird.The tennis training device according to the invention comprises a hinged to a base support rod which is pivotable between a first and a second stop and a pivotally projecting from the support rod profile rod carries at its free end a ball is rotatably mounted, wherein the second stop in the direction of impact against a force is supported pivotably, for example against a spring force, so that a deflection of the voltage applied to the second stop support rod in the direction of impact is possible, which is braked by the opposing force.

Beispielsweise kann der zweite Anschlag in Schlagrichtung durch ein verstellbares Gegengewicht verschwenkbar abgestĆ¼tzt werden, das durch eine Schwenkbewegung des zweiten Anschlags bewegt wird, vorzugsweise verschwenkt wird.
Nach einer weiteren AusfĆ¼hrungsform kann die am zweiten Anschlag angreifende Kraft durch ein verdrehbares Gegengewicht ausgebildet werden, das auf dem Umfang einer Scheibe angebracht ist, die Ć¼ber einen Seilzug mit dem Anschlag verbunden ist.
Hierbei kann die Krafteinwirkung des verdrehbaren Gegengewichts durch eine Kurve auf der Scheibe beeinflusst werden, lƤngs der der Seilzug verlƤuft.
For example, the second stop can be pivotally supported in the impact direction by an adjustable counterweight, which is moved by a pivoting movement of the second stop, is preferably pivoted.
According to a further embodiment, the force acting on the second stopper can be formed by a rotatable counterweight mounted on the circumference of a disc which is connected to the stop via a cable pull.
Here, the force of the rotatable counterweight can be influenced by a curve on the disc, along which the cable runs.

Nach einer weiteren vorteilhaften AusfĆ¼hrungsform kann die TrƤgerstange zwischen zwei einen Lagerblock bildenden Platten verschwenkbar gelagert sein. Der Lagerbock wird vorzugsweise auf einer Basisplatte angebracht, die durch eine Verstelleinrichtung relativ zu einem stationƤren Aufbau um eine senkrechte Schwenkachse verschwenkbar und in der Schwenkstellung fixierbar ist.According to a further advantageous embodiment, the support rod between two bearing blocks forming a plate can be mounted pivotably. The bearing block is preferably mounted on a base plate which is pivotable about an upright pivot axis by an adjusting device relative to a stationary structure and can be fixed in the pivoting position.

Vorteilhafterweise ist die Basisplatte auf einer verschwenkbaren Platte in einem geringen Winkelbereich verschwenkbar, wobei in einem Abstand voneinander angeordnete Magnete ein Schwingen des Lagerbocks zwischen den Magneten zulassen.Advantageously, the base plate is pivotable on a pivotable plate in a small angular range, wherein at a distance from each other arranged magnets allow a swinging of the bearing block between the magnets.

Der Profilstab ist vorteilhafterweise lƤnger ausgebildet als die TrƤgerstange und er ist zwischen AnschlƤgen an der TrƤgerstange verschwenkbar, sodass der Profilstab bereits eine Auslenkung in Schlagrichtung nach einem Schlag auf den Ball vornimmt, bevor die TrƤgerstange verschwenkt wird.
Damit der Profilstab beim Ausschwingen des TennisschlƤgers von diesem nicht berĆ¼hrt wird, ist der Profilstab vorteilhafterweise gekrĆ¼mmt.
The profile bar is advantageously designed to be longer than the support rod and it is pivotable between stops on the support rod, so that the profile bar already makes a deflection in the direction of impact after a blow to the ball before the support rod is pivoted.
So that the profile bar is not touched when swinging the tennis racket of this, the profile bar is advantageously curved.

Die verschwenkbare Lagerung des Profilstabes an der TrƤgerstange ist vorteilhafterweise lƤngs der TrƤgerstange verstellbar, beispielsweise durch eine auf der TrƤgerstange verstellbare HĆ¼lse, die in der jeweiligen Stellung fest mit der TrƤgerstange verbunden werden kann.The pivotable mounting of the profile bar on the support rod is advantageously along the support rod adjustable, for example by an adjustable on the support rod sleeve, which can be firmly connected in the respective position with the support rod.

Das TrainingsgerƤt kann stationƤr angeordnet werden, Bevorzugt wird das GerƤt in einem GehƤuse angeordnet, das Ć¼ber ein GestƤnge auf einem Fahrgestell hƶhenverstellbar ist, wobei das Fahrgestell auf dem Boden arretiert werden kann.The training device can be arranged stationary, Preferably, the device is arranged in a housing which is height adjustable via a linkage on a chassis, wherein the chassis can be locked on the ground.

Es kƶnnen verschiedene Sensoren und eine elektronische Speichereinrichtung vorgesehen werden, durch welche Parameter der Ballbewegung aufgezeichnet und gespeichert werden, damit die Ballbewegung nach einem Schlag mit dem TennisschlƤger auf den Ball auf einem Monitor wiedergegeben werden kann.Various sensors and an electronic memory device can be provided by which parameters of the ball movement are recorded and stored so that the ball movement can be reproduced after a hit with the tennis racket on the ball on a monitor.

Vorteilhafterweise ist der Ball mit unterschiedlicher Farbgebung auf dem Ballumfang am freien Ende der Profilstange verdrehbar gelagert, sodass anhand der unterschiedlichen EinfƤrbung des Balles die Drehrichtung nach einem Schlag optisch leicht erkennbar ist.
Vorteilhafterweise ist der Ball durch zwei Halbschalen ausgebildet, die vorzugsweise aus geschƤumtem Material wie z.B. Polyurethanschaum bestehen.
Advantageously, the ball is rotatably mounted with different colors on the ball circumference at the free end of the profile bar, so that based on the different coloring of the ball, the direction of rotation after a strike is visually easily recognizable.
Advantageously, the ball is formed by two half shells, which are preferably made of foamed material such as polyurethane foam.

Beispielsweise AusfĆ¼hrungsformen der Erfindung werden nachfolgend anhand der Zeichnung nƤher erlƤutert. Es zeigen

Fig. 1
eine bevorzugte erste AusfĆ¼hrungsform in einer Seitenansicht in einer Ausgangsstellung,
Fig. 2
die erste AusfĆ¼hrungsform nach Fig. 1 in einer Seitenansicht in der Ausgangsstellung ohne AbstĆ¼tzung des zweiten Anschlags,
Fig. 3
eine Zwischenstellung in der Darstellung der Fig. 2 nach AusfĆ¼hren eines Schlages,
Fig. 4
die Endstellung nach AusfĆ¼hrung eines Schlages in der Darstellung der Fig. 2 und 3,
Fig. 5
eine Seitenansicht der ersten AusfĆ¼hrungsform nach Fig. 1 mit Darstellung der Beaufschlagung des zweiten Anschlags,
Fig. 6
in der Darstellung der Fig. 5 die Endstellung der Fig. 4,
Fig. 7
eine Draufsicht auf die Basisplatte, wobei
Fig 7a
die Ansicht der Fig. 2 bis 4 und
Fig 7b
die Ansicht von Fig. 1 sowie von Fig 5 und 6 zeigt,
Fig. 8
eine Seitenansicht des auf einem Fahrgestell verfahrbaren TrainingsgerƤtes, wobei
Fig. 8a
eine angehobene Stellung und
Fig. 8b
eine abgesenkte Stellung wiedergibt,
Fig. 9
schematische Darstellungen der Lagerung des Balles,
Fig. 10
eine schematische Seitenansicht einer zweiten AusfĆ¼hrungsform der Vorrichtung in der Ruhestellung,
Fig 11-13
Zwischenstellungen der Vorrichtung in der Ansicht der Fig. 10 nach AusfĆ¼hren eines Schlages,
Fig. 14
eine Ansicht einer dritten AusfĆ¼hrungsform der Vorrichtung,
Fig. 15-16
Zwischenstellungen des GerƤtes,
Fig 17
eine schematische Seitenansicht des GehƤuses mit Abdeckung,
Fig. 18
eine Draufsicht auf das GehƤuse im Bereich der TrƤgerstange, und
Fig. 19
schematisch die Verbindung der Basisplatte mit einem stationiertem Aufbau.
For example, embodiments of the invention are explained below with reference to the drawing. Show it
Fig. 1
a preferred first embodiment in a side view in a starting position,
Fig. 2
the first embodiment according to Fig. 1 in a side view in the starting position without support of the second stop,
Fig. 3
an intermediate position in the presentation of the Fig. 2 after performing a strike,
Fig. 4
the end position after execution of a blow in the representation of Fig. 2 and 3 .
Fig. 5
a side view of the first embodiment according to Fig. 1 with presentation of the imposition of the second stop,
Fig. 6
in the presentation of the Fig. 5 the end position of Fig. 4 .
Fig. 7
a plan view of the base plate, wherein
Fig. 7a
the view of Fig. 2 to 4 and
Fig. 7b
the view of Fig. 1 as well as from FIGS. 5 and 6 shows,
Fig. 8
a side view of the movable on a chassis training device, wherein
Fig. 8a
a raised position and
Fig. 8b
represents a lowered position,
Fig. 9
schematic representations of the bearing of the ball,
Fig. 10
a schematic side view of a second embodiment of the device in the rest position,
Fig 11-13
Intermediate positions of the device in the view of Fig. 10 after performing a strike,
Fig. 14
a view of a third embodiment of the device,
Fig. 15-16
Intermediate positions of the device,
Fig. 17
a schematic side view of the housing with cover,
Fig. 18
a plan view of the housing in the region of the support rod, and
Fig. 19
schematically the connection of the base plate with a stationary structure.

In Fig. 1 ist mit 1 ein Ball bezeichnet, der bei 2 vorzugsweise durch ein Kugellager am Ende eines in Schlagrichtung gekrĆ¼mmten Profilstabes 3, beispielsweise ein Alu-Rechteckrohr, mit einer Drehachse senkrecht zur Zeichnungsebene drehbar gelagert ist Der Profilstab 3 ist steif ausgebildet und sein gegenĆ¼berliegendes Ende ist bei 4 am oberen Endbereich an einer TrƤgerstange 5 verschwenkbar gelagert, die z.B aus einem Alu-Rechteckrohr besteht.In Fig. 1 is denoted by 1 a ball which is rotatably mounted at 2 preferably by a ball bearing at the end of a curved in the direction of impact profile bar 3, for example an aluminum rectangular tube with a rotation axis perpendicular to the plane of the drawing The profile bar 3 is rigid and its opposite end is at 4 pivotally mounted at the upper end portion of a support rod 5, which consists for example of an aluminum rectangular tube.

Die KrĆ¼mmung des Profilstabes 3 ist so ausgelegt, dass beim AusfĆ¼hren eines Slice-Schlages der SchlƤger nach Auftreffen auf dem Ball frei ausschwingen kann und durch den verschwenkten Profilstab 3 (Fig 3 und 4) nicht behindert wird.The curvature of the profile bar 3 is designed so that when a slice hit the racket can swing freely after hitting the ball and by the pivoted profile bar 3 (FIG. FIGS. 3 and 4 ) is not hindered.

Fig. 9 zeigt schematisch die Lagerung eines aus zwei Halbschalen 1a und 1b aufgebauten Balles 1, dessen AuƟenflƤche vorzugsweise zweifarbig gestaltet ist, sodass nach einem Topspin- oder Slice-Schlag die Drehbewegung des Balles deutlich erkennbar ist.
Die beiden Halbschalen 1a und 1b des Balles sind vorzugsweise aus geschƤumtem Material, z.B. Polyurethanschaum, gefertigt, wobei jede Halbschale zwischen einer Haltescheibe 1.1 und einem Flansch 1.2 auf einer Welle 1.3 gehalten wird, wie Fig. 9a zeigt.. Die Welle 1.3 ist zweiteilig ausgebildet, wobei ein im Durchmesser verringerter Abschnitt in einen hĆ¼lsenfƶrmigen Teil 1.31 eingreift, wie aus Fig 9a und 9b ersichtlich ist. Die beiden Haltescheiben 1.1 werden durch Schrauben an der Welle befestigt und die beiden fest miteinander verbundenen Halbschalen sind durch ein Kugellager 2 gelagert, das auf dem im Durchmesser verringerten Abschnitt der Welle 1.3 angeordnet ist.
Fig. 9 schematically shows the storage of a constructed of two half-shells 1a and 1b ball 1, the outer surface is preferably designed two-tone, so that after a topspin or slice hit the rotational movement of the ball is clearly visible.
The two half-shells 1a and 1b of the ball are preferably made of foamed material, for example polyurethane foam, each half-shell between a Holding disk 1.1 and a flange 1.2 is held on a shaft 1.3, as Fig. 9a The shaft 1.3 is formed in two parts, with a reduced diameter portion engages in a sleeve-shaped part 1.31, as shown FIGS. 9a and 9b is apparent. The two retaining disks 1.1 are fastened by screws to the shaft and the two fixedly connected half-shells are supported by a ball bearing 2, which is arranged on the reduced diameter portion of the shaft 1.3.

Die verschwenkbare Lagerung 4 des Profilstabes 3 kann an einer HĆ¼lse 4.1 (Fig 10) ausgebildet sein, die lƤngs der TrƤgerstange 5 verstellbar ist, wobei die HĆ¼lse 4.1 in der jeweiligen Stellung fest mit der TrƤgerstange 5 verbunden wird.The pivotable mounting 4 of the profile bar 3 can be attached to a sleeve 4.1 ( FIG. 10 ), which is adjustable along the support rod 5, wherein the sleeve 4.1 is firmly connected in the respective position with the support rod 5.

Im Bereich der Anlenkstelle 4 des Profilstabs 3 an der TrƤgerstange 5 werden zweckmƤƟigerweise AnschlƤge vorgesehen, zwischen denen der Profilstab 3 relativ zur TrƤgerstange 5 verschwenkbar ist, wobei die AnschlƤge zweckmƤƟigerweise mit einer Elastomerbeschichtung bzw mit einem DƤmpfungspolster versehen werden,In the region of the articulation point 4 of the profile bar 3 on the support rod 5 stops are provided suitably, between which the profile bar 3 is pivotable relative to the support rod 5, wherein the stops are suitably provided with an elastomer coating or with a damping pad,

Fig. 1 zeigt einen oberen DƤmpfer 4a mit einem Elastomerpolster, das fest mit der TrƤgerstange 5 verbunden ist. Weiterhin ist mit der TrƤgerstange 5 ein unterer DƤmpfer 4b fest verbunden, auf dem der Profilstab 3 in der in Fig. 1 wiedergegebenen Ruhestellung aufliegt. Fig. 1 shows an upper damper 4a with an elastomeric pad which is fixedly connected to the support rod 5. Furthermore, a lower damper 4b is fixedly connected to the support rod 5, on which the profile bar 3 in the in Fig. 1 rest position shown rests.

Auch kann eine Federbeaufschlagung vorgesehen werden, die einer Schwenkbewegung des Profilstabes 3 aus der Stellung der Fig. 1 in die Stellung der Fig, 4 entgegenwirkt und die den Profilstab 3 aus der Schwenkstellung in Fig, 4 wieder in die Ausgangsstellung der Fig. 1 zurĆ¼ckdrĆ¼ckt
Insbesondere kann an der Lagerung 4 eine Blattfeder vorgesehen werden, die auf die Schwenkbewegung des Profilstabes 3 einwirkt, um ein elastisches Auftreffen des SchlƤgers auf dem Ball 1 zu gewƤhrleisten.
Also, a spring action can be provided, which is a pivotal movement of the profile bar 3 from the position of Fig. 1 in the position of Fig. 4 counteracts and the profile bar 3 from the pivot position in Fig. 4 back to the starting position of the Fig. 1 pushes back
In particular, a leaf spring can be provided on the bearing 4, which acts on the pivoting movement of the profile bar 3 to ensure an elastic impact of the racket on the ball 1.

Fig. 2 bis 4 zeigen den Grundaufbau der Anlenkung der TrƤgerstange 5 an einer Basisplatte 100, wobei Fig 2 der Ausgangsstellung in Fig. 1 entspricht. Fig. 2 to 4 show the basic structure of the articulation of the support rod 5 on a base plate 100, wherein Fig. 2 the starting position in Fig. 1 equivalent.

Die TrƤgerstange 5 ist am unteren Ende in oder an einem Lagerbock 6 bei 7 verschwenkbar gelagert. Der Lagerbock 6 kann aus zwei im Querschnitt L-fƶrmigen Aluplatten bestehen, wobei die kĆ¼rzeren Schenkel an der Basisplatte 100 befestigt sind. Die Schwenkbewegung der TrƤgerstange 5 entgegen der Schlagrichtung wird durch einen ersten Anschlag 8 begrenzt, Die TrƤgerstange 5 liegt in der Ausgangsstellung der Fig. 1 und 2 mit ihrem unteren Ende an dem ersten Anschlag 8 an, der bei dem AusfĆ¼hrungsbeispiel der Fig. 1 bis 4 als Gasdruckfeder ausgebildet istThe support rod 5 is pivotally mounted at the lower end in or on a bearing block 6 at 7. The bearing block 6 may consist of two cross-sectionally L-shaped aluminum plates, wherein the shorter legs are attached to the base plate 100. The pivoting movement of the support rod 5 against the direction of impact is limited by a first stop 8, the support rod 5 is in the starting position of the Fig. 1 and 2 with its lower end to the first stop 8, which in the embodiment of the Fig. 1 to 4 is designed as a gas spring

Anstelle einer Gasdruckfeder 8 kann auch ein anderer Anschlag vorzugsweise mit einer DƤmpfungswirkung vorgesehen werden, wie bei den weiteren AusfĆ¼hrungsformen wiedergegeben, die nachfolgend beschrieben werden.Instead of a gas spring 8 may also be another stop preferably provided with a damping effect, as shown in the other embodiments, which are described below.

Die TrƤgerstange 5 trifft nach einem Schlag mit dem TennisschlƤger auf den Ball 1 in Fig. 3 bei ihrer Schwenkbewegung in Uhrzeigerrichtung um die Anlenkstelle 7 auf einen zweiten Anschlag 9, der bei der ersten AusfĆ¼hrungsform am Lagerbock 6 bei 9.2 verschwenkbar gelagert ist. Der zweite Anschlag 9 ist durch eine Strebe 9.1 mit einem Elastomerpolster 9.3 am freien Ende ausgebildet, auf das die TrƤgerstange 5 bei ihrer Schwenkbewegung auftrifft,
Der zweite Anschlag 9 ist nachgiebig mit einer Gegenkraft abgestĆ¼tzt, wie nachfolgend anhand der Fig. 5 und 6 nƤher erlƤutert wird.
The support rod 5 hits after a blow with the tennis racket on the ball 1 in Fig. 3 in its pivoting movement in the clockwise direction about the articulation point 7 on a second stop 9, which is pivotally mounted in the first embodiment on the bearing block 6 at 9.2. The second stop 9 is formed by a strut 9.1 with an elastomeric pad 9.3 at the free end, on which the support rod 5 impinges during its pivoting movement,
The second stop 9 is resiliently supported with a counterforce, as described below with reference to FIGS. 5 and 6 is explained in more detail.

Nach Anlage der TrƤgerstange 5 am zweiten Anschlag 9 in der Zwischenstellung der Fig. 3 kommt bei der weiteren Schwenkbewegung der TrƤgerstange 5 im Uhrzeigersinn die elastische AbstĆ¼tzung des zweiten Anschlags 9 zur Wirkung.
Fig. 4 zeigt die Endstellung der Schwenkbewegung der TrƤgerstange 5 nach AusfĆ¼hren eines Schlages auf den Ball 1, wobei der zweite Anschlag 9 an einem dritten Anschlag 10 aufliegt, der auf der Basisplatte 100 fest angeordnet und mit einem DƤmpfungspolster 10a versehen ist. In dieser Endstellung der Fig. 4 wird die TrƤgerstange 5 in zweifacher Hinsicht abgefedert, einmal durch das DƤmpfungspolster 9.3 und das DƤmpfungspolster 10a am dritten Anschlag 10.
After conditioning the support rod 5 on the second stop 9 in the intermediate position of Fig. 3 comes in the further pivotal movement of the support rod 5 in the clockwise direction, the elastic support of the second stop 9 to the effect.
Fig. 4 shows the end position of the pivotal movement of the support rod 5 after performing a strike on the ball 1, wherein the second stop 9 rests on a third stop 10, which is fixedly arranged on the base plate 100 and provided with a damping pad 10a. In this final position of the Fig. 4 the support rod 5 is cushioned in two respects, once by the damping pad 9.3 and the damping pad 10a on the third stop 10th

Das freie Schwingen des Balles 1 aus der Ausgangsstellung in Fig. 1 und 2 bis zum Auftreffen der TrƤgerstange 5 am zweiten Anschlag 9 bildet eine Art Leerlaufbereich, weil der Schlag auf den Ball 1 im Wesentlichen nur das Eigengewicht des Balles 1 an Kraft zu Ć¼berwinden hat. Dieser Leerlaufbereich bis zum Auftreffen auf dem zweiten Anschlag 9 begĆ¼nstigt so einen geringen Widerstand am Ball 1 bei Auftreffen des SchlƤgers.The free swinging of the ball 1 from the starting position in Fig. 1 and 2 until the impact of the support rod 5 on the second stop 9 forms a kind of no-load area, because the impact on the ball 1 essentially only has to overcome the weight of the ball 1 to force. This no-load area until impact on the second stop 9 thus favors a low resistance on the ball 1 upon impact of the racket.

Fig. 3 zeigt die Anlage der TrƤgerstange 5 am zweiten Anschlag 9, nachdem ein Schlag auf den Ball 1 ausgefĆ¼hrt wurde, Auf einem ersten Abschnitt bewegt sich die TrƤgerstange 5 im Wesentlichen frei zwischen den beiden AnschlƤgen 8 und 9. Erst bei Anlage der TrƤgerstange 5 an dem zweiten Anschlag 9, nachdem zwischen Ball 1 und TennisschlƤger kein Kontakt mehr besteht, wird die TrƤgerstange 5 gegen Krafteinwirkung durch die Wucht des ausgefĆ¼hrten Schlages weiter verschwenkt, In Fig. 2 befindet sich der zweite Anschlag 9 noch in der Ausgangsstellung der Fig. 1. Fig. 3 shows the system of the support rod 5 at the second stop 9, after a blow was carried out on the ball 1. On a first section, the support rod 5 moves substantially freely between the two stops 8 and 9. Only when conditioning the support rod 5 to the second Stop 9, after no contact exists between Ball 1 and tennis rackets, the support rod 5 is further pivoted against the action of force by the force of the blow executed, In Fig. 2 is the second stop 9 still in the starting position of Fig. 1 ,

Der zweite Anschlag 9 kann durch ein GestƤnge bzw. einen Lenkermechanismus abgestĆ¼tzt werden, der auf ein Gegengewicht 11 einwirkt und die Schwenkbewegung des zweiten Anschlags 9 auf dieses Gegengewicht 11 z.B. durch Hebelwirkung Ć¼bertrƤgt, wie dies Fig. 10 und 14 zeigen,The second stop 9 can be supported by a linkage or a link mechanism, which acts on a counterweight 11 and transmits the pivotal movement of the second stop 9 on this counterweight 11, for example by leverage, like this Fig. 10 and 14 demonstrate,

Bevorzugt wird der DƤmpfungsanschlag 9 Ć¼ber ein drehbar gelagertes Gegengewicht 11 beaufschlagt, das in Fig. 1 auf einer Scheibe 12 angebracht ist, die Ć¼ber ein Seil 13, vorzugsweise ein kunststoffummanteltes Drahtseil, mit dem freien Ende des DƤmpfungsanschlags 9 verbunden ist, um den Anschlag 9 aus der Endstellung in Fig. 4 und 6 in die Stellung in Fig. 2 und 5 zurĆ¼ckzubewegen,
Beiderseits des Lagerbocks 6 ist jeweils eine Scheibe 12 vorzugsweise aus Aluminium drehbar gelagert, auf deren Umfang das Gegengewicht 11 aufgebracht ist Vom Umfang der beiden Scheiben 12 fĆ¼hrt das Seil 13 zum oberen Ende des DƤmpfungsanschlags 9, sodass beim Verschwenken des DƤmpfungsanschlags 9 durch die TrƤgerstange 5 die Scheiben 12 im Uhrzeigersinn in Fig. 5 und 6 verdreht werden, Hierbei wirkt das Gegengewicht 11 zur DƤmpfung der Schwenkbewegung der TrƤgerstange 5, sobald der DƤmpfungsanschlag 9 durch die TrƤgerstange 5 verschwenkt wird,
Preferably, the damping stop 9 is acted upon via a rotatably mounted counterweight 11, the in Fig. 1 mounted on a disc 12 which is connected via a cable 13, preferably a plastic-coated wire rope, with the free end of the damping stop 9 to the stop 9 from the end position in Fig. 4 and 6 in the position in Fig. 2 and 5 move back,
On both sides of the bearing block 6, a disc 12 is preferably rotatably supported preferably made of aluminum, on the circumference of the counterweight 11 is applied from the circumference of the two discs 12, the cable 13 leads to the upper end of the damping stop 9, so when pivoting the damping stop 9 by the support rod. 5 the discs 12 in a clockwise direction FIGS. 5 and 6 Here, the counterweight 11 acts to damp the pivoting movement of the support rod 5, as soon as the damping stop 9 is pivoted by the support rod 5,

FĆ¼r eine sanfte Abfederung des DƤmpfungsanschlags 9 ist das Seil 13 auf den beiden Scheiben 12 lƤngs einer Kurve, insbesondere lƤngs einer spiralfƶrmig gestalteten Ausnehmung 12a gefĆ¼hrt, durch die die Drehbewegung der Scheibe 12 mit Gegengewicht 11 beim anfƤnglichen Verschwenken des DƤmpfungsanschlags 9 nur langsam und dann immer stƤrker einsetzt, je weiter der DƤmpfungsanschlag 9 im Uhrzeigersinn verschwenkt wirdFor a gentle cushioning of the damping stop 9, the cable 13 is guided on the two discs 12 along a curve, in particular along a helically shaped recess 12a through which the rotational movement of the disc 12 with counterweight 11 during the initial pivoting of the damping stop 9 only slowly and then always stronger, the farther the damping stop 9 is pivoted clockwise

Aus der Endstellung in Fig. 4 und 6 wird die Vorrichtung selbsttƤtig wieder in die Ausgangsstellung der Fig. 1, 2 und 5 zurĆ¼ckbewegt, indem das auf den Scheiben 12 aufgebrachte Gegengewicht 11 die Scheiben 12 im Gegenuhrzeigersinn zurĆ¼ckdreht und damit den DƤmpfungsanschlag 9 mittels des Seils 13 im Gegenuhrzeigersinn verschwenkt, der die TrƤgerstange 5 mitnimmt. Sobald sich die TrƤgerstange 5 in einer Stellung entsprechend Fig, 3 befindet, in der der DƤmpfungsanschlag 9 nicht mehr weiter im Gegenuhrzeigersinn verschwenkt wird, wirkt das Gewicht der von der TrƤgerstange 5 abstehenden Profilstange 3 auf die TrƤgerstange 5 derart ein, dass sich diese weiter im Gegenuhrzeigersinn in die Ausgangsstellung der Fig, 5 und 2 zurĆ¼ckbewegt, wobei das untere Ende der TrƤgerstange 5 an dem vorzugsweise abgefederten Anschlag 8 insbesondere in Form der Gasfeder zum Anliegen kommt und abgebremst wird.From the end position in Fig. 4 and 6 the device is automatically returned to the starting position of the Fig. 1, 2 and 5 moved back by the force applied to the discs 12 counterweight 11, the discs 12 in the counterclockwise direction and thus pivots the damping stop 9 by means of the cable 13 in the counterclockwise direction, which entrains the support rod 5. As soon as the support rod 5 in a position corresponding Fig. 3 is in which the damping stopper 9 is no longer pivoted counterclockwise, the weight of the protruding from the support rod 5 profile bar 3 acts on the support rod 5 such that it continues in the counterclockwise direction in the starting position of the Fig. 5 and 2 moved back, wherein the lower end of the support rod 5 comes to rest on the preferably cushioned stop 8 in particular in the form of the gas spring and is braked.

Bei dieser Ausgestaltung dient der GasdruckdƤmpfer 8 dazu, dass die RĆ¼ckholung des Balles 1 mit gleichmƤƟiger Geschwindigkeit ablƤuft und der Ball 1 wieder ruhig in der Ausgangsposition der Fig. 1 liegt.In this embodiment, the gas spring 8 is used to ensure that the retrieval of the ball 1 runs at a uniform speed and the ball 1 again calm in the starting position of the Fig. 1 lies.

Vorzugsweise wird ein Anschlag 11a fĆ¼r das Gegengewicht 11 in der Endstellung vorgesehen, der in Fig. 1 auf der Basisplatte 100 wiedergegeben ist.Preferably, a stop 11a is provided for the counterweight 11 in the end position, which in Fig. 1 is reproduced on the base plate 100.

Fig. 7a zeigt eine Draufsicht auf die Basisplatte 100 mit Lagerbock 6, wobei zur deutlicheren Wiedergabe die Scheiben 12 mit Gegengewicht 11 weggelassen sind. Fig. 7b zeigt eine Draufsicht auf die Basisplatte 100 entsprechend Fig 1 und 5 mit Gegengewicht 11 und Scheiben 12. Fig. 7a shows a plan view of the base plate 100 with bearing block 6, wherein for clarity, the discs 12 are omitted with counterweight 11. Fig. 7b shows a plan view of the base plate 100 accordingly Fig. 1 and 5 with counterweight 11 and 12 washers.

Wie Fig. 7a zeigt, ist der Lagerbock 6 aus zwei parallel zueinander angeordneten L-Profilen 6.1 und 6.2 vorzugsweise aus Aluminium ausgebildet, zwischen denen die TrƤgerstange 5 auf einem Lagerbolzen 7 verschwenkbar ist.As Fig. 7a shows, the bearing block 6 of two mutually parallel L-sections 6.1 and 6.2 is preferably formed of aluminum, between which the support rod 5 is pivotable on a bearing pin 7.

Der Lagerbock 6 ist auf der Basisplatte 100 befestigt, die um eine in Fig. 1 bei 100a angedeutete Lagerung in der Zeichenebene der Fig 7a nach rechts und links relativ zu einem stationƤren Aufbau 200 verschwenkbar ist, der bei dem dargestellten AusfĆ¼hrungsbeispiel das nachfolgend nƤher erlƤuterte GehƤuse 200 auf einem Fahrgestell ist. In Fig. 7a befindet sich die senkrecht zur Zeichenebene liegende Schwenkachse 100a der Basisplatte 100 im Bereich der TrƤgerstange 5, wie aus Fig 1 ersichtlich ist. Am Vorderende der Basisplatte 100 ist ein Ansatz 100.1 aus ferromagnetischem Material vorgesehen, der in der Ruhestellung zwischen zwei Magneten 102 in einem Abstand von diesen liegt Die beiden Magneten 102 sind auf einer Platte 100' angeordnet, auf der die Basisplatte 100 in einem gewissen Bereich seitlich beweglich bzw. verschwenkbar angeordnet ist, sodass die Basisplatte 100 in einem gewissen Bereich relativ zur Platte 100' horizontal schwingen und vibrieren kann, wenn der Ball 1 an der Profilstange 3 etwas seitlich zur Schwenkebene der TrƤgerstange 5 getroffen wird und damit eine seitliche Kraft in den Lagerbock 6 eingeleitet wird. Nach einer seitlichen Auslenkung der Basisplatte 100 relativ zur Platte 100' wird die Basisplatte 100 durch die Magneten 102 wieder in die in Fig. 7a wiedergegebene Mittelstellung gebracht.The bearing block 6 is mounted on the base plate 100, which is a in Fig. 1 at 100a indicated storage in the plane of the Fig. 7a is pivoted to the right and left relative to a stationary structure 200, which in the illustrated embodiment, the housing 200 explained in more detail below is on a chassis. In Fig. 7a is located perpendicular to the plane lying pivot axis 100a of the base plate 100 in the region of the support rod 5, as seen from Fig. 1 is apparent. At the front end of the base plate 100, a projection 100.1 made of ferromagnetic material is provided, which is in the rest position between two magnets 102 at a distance from these. The two magnets 102 are arranged on a plate 100 ', on which the base plate 100 in a certain range laterally is arranged movable or pivotable, so that the base plate 100 in a certain range relative to the plate 100 'can vibrate and vibrate horizontally when the ball 1 is hit on the profile bar 3 slightly laterally to the pivot plane of the support rod 5 and thus a lateral force in the Bearing 6 is initiated. After a lateral deflection of the base plate 100 relative to the plate 100 'is the base plate 100 by the magnet 102 back into the in Fig. 7a reproduced middle position brought.

An dem stationƤren Aufbau 200 ist ein Handrad 300 verdrehbar, um das ein Zahnriemen 301 gefĆ¼hrt ist, der Ć¼ber Umlenkrollen 302 gefĆ¼hrt und mit den Enden an dem in Fig. 7a oberen Ende der Platte 100' bei 303 befestigt ist.
Durch Verdrehen des Handrades 300 kann eine SchrƤgstellung der Platte 100' und damit der Basisplatte 100 eingestellt werden. Bei 304 ist eine Raste auf dem Umfang des Handrades 300 vorgesehen, damit das Handrad 300 in einer vorgesehenen Schwenkstellung fixiert werden kann,
Durch einen Doppelpfeil P ist in Fig. 7a angedeutet, dass die Platte 100' mit der Basisplatte 100 in beiden Schwenkrichtungen relativ zum stationƤren Aufbau 200 verschwenkt werden kann,
On the stationary structure 200, a handwheel 300 is rotatable about which a toothed belt 301 is guided, which guided over pulleys 302 and the ends of the in Fig. 7a upper end of the plate 100 'is attached at 303.
By turning the hand wheel 300, an inclination of the plate 100 'and thus the base plate 100 can be adjusted. At 304, a detent is provided on the circumference of the handwheel 300 to allow the handwheel 300 to be fixed in an intended pivot position,
By a double arrow P is in Fig. 7a indicated that the plate 100 'can be pivoted with the base plate 100 in both pivoting directions relative to the stationary structure 200,

Fig. 7b zeigt die gleiche Ansicht wie Fig. 7a, wobei aber die Scheiben 12 mit Gegengewicht 11 wiedergegeben sind. Das Gegengewicht 11 verbindet bei diesem AusfĆ¼hrungsbeispiel die beiden Scheiben 12, sodass sie eine Einheit bilden, die Ć¼ber die Drahtseile 13 mit dem zweiten Anschlag 9 verbunden ist, der in Fig. 7b nicht wiedergegeben ist. Fig. 7b shows the same view as Fig. 7a but with the discs 12 are shown with counterweight 11. The counterweight 11 connects in this embodiment, the two discs 12 so that they form a unit which is connected via the wire ropes 13 with the second stop 9, the in Fig. 7b is not reproduced.

Fig. 8 zeigt eine Seitenansicht einer Vorrichtung, bei der das TrainingsgerƤt auf einem hƶhenverstellbaren Fahrgestell befestigt ist. Fig. 8 shows a side view of an apparatus in which the training device is mounted on a height-adjustable chassis.

Das TrainingsgerƤt mit Basisplatte 100 ist auf der Bodenplatte 200 eines kastenfƶrmigen GehƤuses 200a angebracht, das Ć¼ber zwei Lenker 201a und 201b mit einem Fahrgestell 202 gelenkig verbunden ist, an dem feststellbare RƤder 202.1 und ein an einer Strebe 202.2 angebrachter Griff zum Verschieben angebracht sind Zwischen dem Lenke 201a und dem vorderen Bereich des Fahrgestells 202 ist eine Gasdruckfeder 203 angebracht, die den Schwenkvorgang des GehƤuses 200a relativ zum Fahrgestell 202 unterstĆ¼tzt. Mit 204 ist eine Strebe zwischen dem Lenker 201a und dem Fahrgestell 202 bezeichnet, mittels dem die jeweilige Hƶhenstellung des GehƤuses 200a relativ zum Fahrgestell 202 bei 204a fixiert werden kann.The training device with base plate 100 is mounted on the bottom plate 200 of a box-shaped housing 200a, which is articulated via two links 201a and 201b to a chassis 202 to which lockable wheels 202.1 and a handle 202.2 mounted on a handle for movement are mounted between Steering 201a and the front portion of the chassis 202, a gas spring 203 is attached, which supports the pivoting action of the housing 200a relative to the chassis 202. Denoted by 204 is a strut between the handlebar 201a and the chassis 202, by means of which the respective height position of the housing 200a relative to the chassis 202 can be fixed at 204a.

Fig. 8b zeigt eine abgesenkte Stellung des TrainingsgerƤtes und Fig. 8a eine angehobene Stellung. Fig. 8b shows a lowered position of the training device and Fig. 8a a raised position.

Das beschriebene TrainingsgerƤt kann mit elektrischen Sensoren und einer Software versehen werden, durch die Details bzw, Parameter eines Schlages auf den Ball 1 registriert und beispielsweise auf einem Monitor mit Drucker angezeigt und ausgedruckt werden kƶnnen.The described training device can be provided with electrical sensors and software, can be registered by the details or parameters of a blow on the ball 1 and displayed for example on a monitor with printer and printed.

FĆ¼r die Ermittlung der einzelnen Parameter eines Schlages mit dem TennisschlƤger auf den Ball 1 dient die Anlenkung der Basisplatte 100 auf der Platte 100' und die Vibrierbewegung der Basisplatte 100 zwischen den Magneten 102.To determine the individual parameters of a blow with the tennis racket on the ball 1, the articulation of the base plate 100 on the plate 100 'and the Vibrierbewegung the base plate 100 between the magnet 102 is used.

Es kann auch ein Abtaster vorgesehen werden, mittels dem die Anzahl der SchlƤge registriert werden kann, die dann an die Elektronik weitergegeben und verarbeitet wird.It can also be provided a scanner, by means of which the number of strokes can be registered, which then passed on to the electronics and processed becomes.

In dem Fahrgestell 202 kann beispielsweise ein Akku fĆ¼r die elektrische Stromversorgung der elektronischen Bauelemente vorgesehen sein sowie ein Elektromotor fĆ¼r den Antrieb der Hƶhenverstellung des Gestells.In the chassis 202, for example, a battery for the electrical power supply of the electronic components may be provided and an electric motor for driving the height adjustment of the frame.

Fig. 10 zeigt eine schematische Seitenansicht einer zweiten AusfĆ¼hrungsform, bei der der zweite Anschlag 9 Ć¼ber eine Lenkeranordnung 17 durch ein auf einer Rolle 15 verschiebbares Gegengewicht 11 abgestĆ¼tzt ist
Der einfacheren Darstellung wegen sind an der Anlenkstelle des Profilstabes 3 an der TrƤgerstange 5 die die Schwenkbewegung des Profilstabes 3 begrenzenden AnschlƤge weggelassen.
Fig. 10 shows a schematic side view of a second embodiment in which the second stop 9 is supported via a link assembly 17 by a displaceable on a roller 15 counterweight 11
For ease of illustration, the pivotal movement of the profile bar 3 limiting stops are omitted at the pivot point of the profile bar 3 on the support rod 5.

Gleiche oder entsprechende Bauelemente sind mit den gleichen Bezugszeichen versehen wie in Fig. 1 bis 9,The same or corresponding components are provided with the same reference numerals as in Fig. 1 to 9 .

Die Fig. 11 bis 13 entsprechen hinsichtlich der Relativstellung der einzelnen Teile der Vorrichtung den Fig. 3 und 4 der ersten AusfĆ¼hrungsform.The Fig. 11 to 13 correspond to the relative position of the individual parts of the device the 3 and 4 the first embodiment.

Bei dieser AusfĆ¼hrungsform sind die AnschlƤge 8 und 9 als Rollen ausgebildet, die aus einem Elastomermaterial bestehen kƶnnen, wobei der zweite Anschlag 9 Ć¼ber einen Lenkermechanismus 17, 17a gegen ein Gegengewicht 11 wirkt, das auf der Rolle 15 aufliegt, Der Lenkermechanismus weist einen spitzwinklig ausgebildeten Hebel 17 auf, der mit einem Ende bei 17.1 am Lagerbock 6 bzw, an der Basis angelenkt ist und mit dem gegenĆ¼berliegenden Ende bei 17.2 gelenkig mit einem Ende des langgestreckten Gegengewichts 11 verbunden ist. Der abgewinkelte Bereich 17.3 des Hebels 17 dient als AbstĆ¼tzung auf der Basis B in der RuhestellungIn this embodiment, the stops 8 and 9 are formed as rollers, which may consist of an elastomeric material, wherein the second stopper 9 acts via a link mechanism 17, 17a against a counterweight 11 which rests on the roller 15. The link mechanism has an acute-angled formed Lever 17, which is hinged at one end at 17.1 on the bearing block 6 or, on the base and is pivotally connected to the opposite end at 17.2 with one end of the elongated counterweight 11. The angled portion 17.3 of the lever 17 serves as a support on the base B in the rest position

Auch diese AusfĆ¼hrungsform kann auf einem Gestell 200, 202 hƶhenverstellbar positioniert werden.This embodiment can also be positioned vertically adjustable on a frame 200, 202.

Fig. 14 zeigt schematisch eine dritte AusfĆ¼hrungsform
Mit 20 ist ein auf der Basis B befestigtes Lager bezeichnet, an dessen freiem Ende ein doppelarmiger Hebel 21 etwa in der Mitte bei 21.1 (Fig. 15) verschwenkbar gelagert ist
Das linke Ende des doppelarmigen Hebels 21 ist bei 21.2 mit einem Lenker 24 gelenkig verbunden, der am zweiten Anschlag 9 bei 24.1 angelenkt ist Das gegenĆ¼berliegende Ende des doppelarmigen Hebels 21 ist bei 21.3 mit einem vorzugsweise stangenfƶrmig ausgebildeten Gegengewicht 11, beispielsweise ein Metallzylinder, gelenkig verbunden, das auf einer Rolle 15 aufliegt, vorzugsweise einer Gummirolle, die Ć¼ber eine Lagerstelle bei 15.1 auf der Basis B drehbar befestigt ist.
Fig. 14 schematically shows a third embodiment
Denoted at 20 is a bearing B fixed at the free end of a double-armed lever 21 approximately in the middle at 21.1 ( Fig. 15 ) is pivotally mounted
The left end of the double-armed lever 21 is pivotally connected at 21.2 with a handlebar 24 which is hinged to the second stop 9 at 24.1 The opposite end of the two-armed lever 21 is pivotally connected at 21.3 with a preferably rod-shaped counterweight 11, for example a metal cylinder which rests on a roller 15, preferably a rubber roller, which is rotatably mounted via a bearing at 15.1 on the base B.

In der Ausgangsstellung der Fig. 14 liegt der doppelarmige Hebel 21 etwas schrƤg relativ zur LƤngsachse des Gegengewichts 11 und zur LƤngsachse des Lenkers 14, sodass nach weiterer Schwenkbewegung der TrƤgerstange 5 im Uhrzeigersinn in Fig. 15 das linke Ende des doppelarmigen Hebels 21 durch den Lenker 14 nach unten gedrĆ¼ckt und das rechte Ende des Hebels 21 nach oben verschwenkt wird, wobei dieses Ende des Hebels 21 das Gegengewicht 11 unter Abrollen auf der Rolle 15 nach oben zieht.In the starting position of the Fig. 14 is the two-armed lever 21 slightly obliquely relative to the longitudinal axis of the counterweight 11 and the longitudinal axis of the arm 14, so after further pivotal movement of the support rod 5 in a clockwise direction in Fig. 15 the left end of the double-armed lever 21 is pressed down by the handlebar 14 and the right end of the lever 21 is pivoted upward, this end of the lever 21, the counterweight 11 pulls under rolling on the roller 15 upwards.

Fig. 16 zeigt eine mƶgliche Endstellung des Balls 1 nach einem krƤftigen Schlag, wobei der Hebel 21 im Gegenuhrzeigersinn verschwenkt und das Gegengewicht 11 relativ weit angehoben ist, sodass der untere Endbereich des stangenfƶrmigen Gegengewichts 11 auf der Rolle 15 aufliegt. Fig. 16 shows a possible end position of the ball 1 after a strong blow, the lever 21 is pivoted counterclockwise and the counterweight 11 is relatively far raised, so that the lower end portion of the rod-shaped counterweight 11 rests on the roller 15.

Die Ausweichbewegung des Profilstabes 3 in Verbindung mit der gekrĆ¼mmten Form, wie in Fig. 16 wiedergegeben, dient vor allem dazu, einen Freiraum fĆ¼r den SchlƤgerausschwung nach AusfĆ¼hren eines Slice-Schlages zu ermƶglichen.The evasive movement of the profile bar 3 in conjunction with the curved shape, as in Fig. 16 is used, above all, to allow a space for the club swing after performing a slice hit.

Aus der Endstellung in Fig. 16 wird die Vorrichtung selbsttƤtig wieder in die Ausgangsstellung der Fig. 14 zurĆ¼ckbewegt, wobei das an der Rolle 15 aufliegende Gegengewicht 11 durch Gravitationswirkung des Ć¼ber der Rolle 15 vorstehenden Abschnitts, der das Gegengewicht 11 nach unten zieht, den doppelarmigen Hebel 21 im Uhrzeigersinn verschwenkt, wƤhrend das Gegengewicht 11 auf der Rolle 15 nach rechts abrollt, sodass das linke Ende des Hebels 21 Ć¼ber den Lenker 14 den zweiten Anschlag 9 und mit diesem die TrƤgerstange 5 in die Stellung der Fig. 15 zurĆ¼ckdrĆ¼ckt. Nach Erreichen der Stellung in Fig. 15 lƶst sich die TrƤgerstange 5 durch das Gewicht des Profilstabs 3 und des Balls 1 vom zweiten Anschlag 9 und kippt in die Stellung der Fig. 14 zurĆ¼ck, in der sie an dem ersten Anschlag 8 vorzugsweise mit einer leichten Neigung nach links anliegt.From the end position in Fig. 16 the device is automatically returned to the starting position of the Fig. 14 moved back, wherein the resting on the roller 15 counterweight 11 by gravitational action of the roller 15 projecting portion which pulls down the counterweight 11, the double-armed lever 21 pivoted clockwise, while the counterweight 11 rolls on the roller 15 to the right, so the left end of the lever 21 via the handlebar 14 the second Stop 9 and with this the support rod 5 in the position of Fig. 15 pushes back. After reaching the position in Fig. 15 solves the carrier bar 5 by the weight of the profile bar 3 and the ball 1 from the second stop 9 and tilts in the position of Fig. 14 back, in which it rests against the first stop 8, preferably with a slight tilt to the left.

Bei dieser Schwenkbewegung der TrƤgerstange 5 im Gegenuhrzeigersinn aus der Endstellung in Fig. 16 in die Ausgangsstellung in Fig. 14 wird auch der Profilstab 3 an der Lagerstelle 4 aufgrund seines Gewichts wieder aus der in Fig. 16 gestreckten Stellung relativ zur TrƤgerstange 5 in die Stellung der Fig. 14 zurĆ¼ckbewegt, in der die Profilstange 3 etwa in einem Winkel von 100 bis 120Ā° zur TrƤgerstange 5 liegt.In this pivotal movement of the support rod 5 in the counterclockwise direction from the end position in Fig. 16 to the starting position in Fig. 14 is also the profile bar 3 at the bearing 4 due to its weight back from the in Fig. 16 extended position relative to the support rod 5 in the position of Fig. 14 moved back, in which the profile bar 3 is approximately at an angle of 100 to 120 Ā° to the support rod 5.

Fig. 14 zeigt auf der Basis B ein Widerlager 16 fĆ¼r das Gegengewicht 11, das in der Ausgangsstellung an einer DƤmpfung 16.1 mit dem freien Ende anliegt, wobei das Gegengewicht 11 durch die Rolle 15 in einer SchrƤgstellung zum Hebel 21 gehalten wird. Fig. 14 shows on the basis of B an abutment 16 for the counterweight 11, which rests in the initial position on a damping 16.1 with the free end, wherein the counterweight 11 is held by the roller 15 in an inclined position to the lever 21.

Anstelle eines DƤmpfers 8.1 in Fig. 15 kann auch ein hydraulischer DƤmpfer 8a (Fig. 14) an dem Lagerbock 6 angebracht sein, der den ersten Anschlag bildet und die TrƤgerstange 5 mit dem Ball 1 ohne nachzufedern in die Ausgangsstellung zurĆ¼ckbringt, wenn die TrƤgerstange 5 nach Beaufschlagen des zweiten beweglichen Anschlags 9 zurĆ¼ckschwingt.Instead of a damper 8.1 in Fig. 15 can also be a hydraulic damper 8a ( Fig. 14 ) to be mounted on the bearing block 6, which forms the first stop and the support rod 5 with the ball 1 without nachzufedern returns to the starting position when the support rod 5 swings back after applying the second movable stopper 9.

Fig. 17 zeigt schematisch eine Seitenansicht des TrainingsgerƤts der ersten AusfĆ¼hrungsform mit einem GehƤuse entsprechend Fig, 8, wobei Ć¼ber der Basisplatte 100 eine Abdeckhaube 200b vorgesehen ist, die den Aufbau auf der Basisplatte 100 gegenĆ¼ber Staub und Verschmutzung schĆ¼tzt, nachdem insbesondere in der Anfangsphase eines Schlages auf den Ball 1 die Verschwenkung der TrƤgerstange 5 mƶglichst reibungsfrei und ohne Widerstand erfolgen soll, Fig. 17 schematically shows a side view of the training device of the first embodiment with a housing accordingly Fig. 8 in that a cover hood 200b is provided above the base plate 100, which protects the structure on the base plate 100 from dust and dirt, especially after the pivoting of the support bar 5 in the initial phase of impact on the ball 1, as smoothly as possible and without resistance,

Auf der geschlossenen Haube 200b ist das Handrad 300 angeordnet, wie die Draufsicht in Fig, 18 zeigt, mittels dem die Basisplatte 100 mit der TrƤgerstange 5 verschwenkt werden kann. Fig. 18 zeigt eine Verschwenkung nach links und eine Verschwenkung nach rechts relativ zum GehƤuse 200.On the closed hood 200b, the hand wheel 300 is arranged as the top view in Fig. 18 shows, pivoted by means of which the base plate 100 with the support rod 5 can be. Fig. 18 shows a pivoting to the left and a pivoting to the right relative to the housing 200.

Nachdem die TrƤgerstange 5 in Schlagrichtung des Balles 1 verschwenkbar ist und relativ zum GehƤuse seitlich verschwenkt wird, wie Fig. 18 zeigt, ist auf der Haube 200b eine Kunststoffplatte 400 beweglich montiert, die einen Metallrahmen 401 mit einem mittigen LƤngsschlitz 402 aufweist, lƤngs dem die TrƤgerstange 5 beweglich ist.After the support rod 5 is pivotable in the direction of impact of the ball 1 and is pivoted laterally relative to the housing, such as Fig. 18 shows, on the hood 200b, a plastic plate 400 is movably mounted, which has a metal frame 401 with a central longitudinal slot 402, along which the support rod 5 is movable.

Um den Schlitz 402 gegenĆ¼ber Eindringen von Staub und Verschmutzung zu schĆ¼tzen, ist eine BĆ¼rstenabdeckung 403 vorzugsweise aus Glasfasern vorgesehen, durch die die Bewegung der TrƤgerstange 5 lƤngs des Schlitzes 402 mƶglichst wenig behindert wird, Die Glasfasern erstrecken sich von beiderseits des Schlitzes 402 vorgesehenen Leisten 404 etwa bis zur Mitte des Schlitzes, sodass sich die TrƤgerstange 5 ohne nennenswerten Widerstand lƤngs des Schlitzes 402 bewegen kann.In order to protect the slot 402 against the ingress of dust and dirt, a brush cover 403 is preferably made of glass fibers, through which the movement of the support rod 5 along the slot 402 as little as possible obstructed, The glass fibers extend from both sides of the slot 402 provided bars 404th approximately to the middle of the slot, so that the support rod 5 can move without appreciable resistance along the slot 402.

Fig, 19 zeigt schematisch die Anlenkung des GerƤts auf der Bodenplatte 200 des GehƤuses in Fig 8 mit der in Fig, 1 bei 100a angedeuteten Schwenkachse,
In einer Bohrung der Bodenplatte 200 ist ein Gelenkbolzen 500 verdrehbar eingesetzt, auf dem eine Mutter 501 und eine Gegenmutter 502 aufgeschraubt sind. Zwischen Mutter 501 und Bodenplatte 200 ist eine Teflonscheibe 503 vorgesehen, durch die die Reibung zwischen Bodenplatte 200 und Mutter 501 gering gehalten wird.
Fig. 19 schematically shows the articulation of the device on the bottom plate 200 of the housing in Fig. 8 with the in Fig, 1 at 100a indicated pivot axis,
In a bore of the bottom plate 200, a hinge pin 500 is rotatably inserted, on which a nut 501 and a lock nut 502 are screwed. Between nut 501 and bottom plate 200, a Teflon disc 503 is provided, by which the friction between the bottom plate 200 and nut 501 is kept low.

Der Gelenkbolzen 500 ist drehfest in einer Bohrung der Platte 100' eingepresst, die durch das Handrad 300 und den Zahnriemen 301 relativ zur Bodenplatte 200 um die Achse des Gelenkbolzens 500 verschwenkbar ist
Zwischen Bodenplatte 200 und Platte 100' ist eine Kunststoffplatte 504 zur Verminderung der Reibung eingesetzt
Ɯber der Platte 100' ist die Basisplatte 100 des GerƤtes auf den Gelenkbolzen 500 verschwenkbar aufgesetzt, so dass die Basisplatte 100 relativ zur Platte 100' zwischen den Magneten 102 auf der Platte 100' verschwenkbar ist.
Mit 505 ist eine weitere Kunststoffplatte zwischen der Basisplatte 100 und der Platte 100' zur Reibungsverminderung vorgesehen.
The hinge pin 500 is rotationally fixed in a bore of the plate 100 'is pressed, which is pivotable about the axis of the hinge pin 500 by the handwheel 300 and the toothed belt 301 relative to the bottom plate 200
Between bottom plate 200 and plate 100 'is a plastic plate 504 used to reduce friction
Over the plate 100 ', the base plate 100 of the device is pivotally mounted on the hinge pin 500, so that the base plate 100 relative to the plate 100' between the magnet 102 on the plate 100 'is pivotable.
At 505, another plastic plate is provided between the base plate 100 and the friction reduction plate 100 '.

Durch Verdrehen des Handrades 300 kann die Platte 100' relativ zur Bodenplatte 200 des GehƤuses verschwenkt werden, wobei die Basisplatte 100, auf der der Lagerbock 6 befestigt ist, durch ihren Ansatz 100.1 zwischen den auf der Platte 100' befestigten Magneten 102 in die Schwenkstellung mitgenommen wird,By rotating the handwheel 300, the plate 100 'can be pivoted relative to the bottom plate 200 of the housing, the base plate 100, on which the bearing block 6 is fixed, taken by their approach 100.1 between the mounted on the plate 100' magnet 102 in the pivot position becomes,

Das beschriebene ƜbungsgerƤt kann als Heimtrainer im Keller oder in einer Garage zum Einsatz kommen, aber auch als UnterstĆ¼tzung fĆ¼r einen Tennislehrer dienen, Das GerƤt kann insbesondere zum Ɯben von Topspin, Lob- und Slice-SchlƤgen eingesetzt werden. Die Balldrehung wird bei Topspin- und Slice-SchlƤgen optisch durch den Farbwechsel am Ball wiedergegeben Auch ist eine elektronische Drehzahlmessung am Ball mƶglich, wobei auf einem nicht dargestellten Display die Drehzahl des Balles angezeigt werden kann.
Da der Ball 1 immer wieder in der Ausgangsstellung an der gleichen Stelle positioniert ist, kann der SchlƤgerschwung automatisiert werden.
The exercise device described can be used as a home trainer in the basement or in a garage, but also serve as a support for a tennis teacher, the device can be used in particular for practicing topspin, lob and slices. The ball rotation is reflected in topspin and slice strokes optically by the color change on the ball Also, an electronic speed measurement on the ball is possible, with the speed of the ball can be displayed on a display, not shown.
Since the ball 1 is always positioned in the starting position in the same position, the club swing can be automated.

Es sind verschiedene Abwandlungen der beschriebenen Bauweise mƶglich, So kann anstelle des Gegengewichts 11 ein Federaufbau vorgesehen werden, der Ć¼ber den Lenkermechanismus 10 bzw. 10a den zweiten Anschlag 9 nachgiebig abstĆ¼tzt.There are various modifications of the construction described possible, so instead of the counterweight 11, a spring structure can be provided which supports the second stop 9 resiliently via the link mechanism 10 and 10a.

Claims (14)

  1. Tennis training unit, comprising
    a support rod (5) hinged on a base (B, 6), which can be pivoted between a first (8) and a second stop (9) and carries a pivotable profile bar (3) protruding from the support rod (5), at the free end of which a ball (1) is rotatably positioned,
    wherein the second stop (9) is pivotably supported against a force in hitting direction and the profile bar (3) is preferably hinged on the support rod (5) between elastically yielding stops (4a, 4b).
  2. Unit according to claim 1, wherein the second stop (9) is pivotably supported by an adjustable counterweight (11) in hitting direction, which is moveable, and preferably pivotable by means of a pivot movement of the second stop (9).
  3. Unit according to one of the preceding claims, wherein the pivotable mounting of the profile bar (3) is adjustable along the support rod (5).
  4. Unit according to one of the preceding claims, wherein the profile bar (3) is curved.
  5. Unit according to one of the preceding claims, wherein the profile bar (3) is designed longer than the support rod (5).
  6. Units according to claim 2, wherein the adjustable counterweight (11) is designed as a rotatable counterweight affixed to the circumference of a disc (12) that is connected with the second stop (9) via a pulley (13).
  7. Unit according to one of the preceding claims, wherein the support rod (5) is pivotably affixed between two plates (6.1, 6.2) forming a bearing block (6) in hitting direction.
  8. Unit according to claim 7, wherein the bearing block (6) is fitted to a base plate (100), which can be fixed in the pivot position with an adjustment means (300) relative to a stationary construction (200) and pivoted around a vertical pivot axis (100a).
  9. Unit according to claim 8, wherein the base plate (100) is fitted to a pivotable plate (100') to pivot within a small angle range, on which magnets (102) are fitted at a distance from each other, between which the bearing block (6) can swing.
  10. Unit according to one of the preceding claims, wherein the unit is arranged in a housing (200) that can be height adjusted on a chassis by means of a frame.
  11. Unit according to one of the preceding claims, wherein sensors and an electronic memory are envisaged, with which parameters of the ball movement are recorded and stored.
  12. Unit according to one of the preceding claims, wherein the pivot movement of the second stop (9) is limited in hitting direction by a stop (10).
  13. Unit according to one of the preceding claims, wherein the return movement of the adjustable or rotatable counterweight (11) is limited by a stop (11a).
  14. Unit according to one of the preceding claims, wherein the first stop (8) is formed by a gas spring.
EP15735677.5A 2014-07-17 2015-07-07 Tennis training device Active EP3169413B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15735677T PL3169413T3 (en) 2014-07-17 2015-07-07 Tennis training device

Applications Claiming Priority (2)

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DE202014103293.2U DE202014103293U1 (en) 2014-07-17 2014-07-17 Tennis training device
PCT/EP2015/065471 WO2016008767A1 (en) 2014-07-17 2015-07-07 Tennis training device

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EP3169413A1 EP3169413A1 (en) 2017-05-24
EP3169413B1 true EP3169413B1 (en) 2018-09-12

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US (1) US10065099B2 (en)
EP (1) EP3169413B1 (en)
JP (1) JP6571769B2 (en)
CN (1) CN106999759B (en)
DE (1) DE202014103293U1 (en)
ES (1) ES2699087T3 (en)
PL (1) PL3169413T3 (en)
WO (1) WO2016008767A1 (en)

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AU201615730S (en) * 2016-04-11 2016-11-14 Hamilton Man Group Limited Football training device
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KR102020151B1 (en) * 2018-06-07 2019-09-09 ķ™ģ„±ź·  swing training device assembly for table-tennis
IL263060A (en) * 2018-11-15 2020-05-31 Strikecosense Ltd A ball striking training simulator
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Also Published As

Publication number Publication date
ES2699087T3 (en) 2019-02-07
CN106999759B (en) 2019-05-28
JP6571769B2 (en) 2019-09-04
US20170203183A1 (en) 2017-07-20
PL3169413T3 (en) 2019-03-29
JP2017521217A (en) 2017-08-03
DE202014103293U1 (en) 2015-01-09
EP3169413A1 (en) 2017-05-24
CN106999759A (en) 2017-08-01
US10065099B2 (en) 2018-09-04
WO2016008767A1 (en) 2016-01-21

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