EP3169413B1 - Tennis training device - Google Patents
Tennis training device Download PDFInfo
- 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.)
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Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- 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
- A63B43/00—Balls with special arrangements
- A63B43/008—Balls with special arrangements with means for improving visibility, e.g. special markings or colours
-
- 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
- A63B69/0073—Means for releasably holding a ball in position; Balls constrained to move around a fixed point, e.g. by tethering
- A63B69/0091—Balls fixed to a movable, tiltable or flexible arm
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
- A63B2071/0063—Shock absorbers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/025—Supports, e.g. poles on rollers or wheels
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/026—Supports, e.g. poles stabilised by weight
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B2071/0694—Visual indication, e.g. Indicia
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising 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
- A63B21/0085—Exercising 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
- A63B21/0087—Exercising 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/02—Exercising 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/08—Characteristics of used materials magnetic
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/51—Force
- A63B2220/53—Force of an impact, e.g. blow or punch
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
- A63B2225/093—Height
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.
Der Erfindung liegt die Aufgabe zugrunde, ein Tennis-TrainingsgerƤt so weiterzubilden, dass im Wesentlichen alle Arten von SchlƤgen einschlieĆlich 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
Das erfindungsgemƤĆe 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 und3 , - 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 derFig. 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 vonFig 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.
- 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 and3 . - 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 ofFig. 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 fromFIGS. 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
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 (
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
The two half-
Die verschwenkbare Lagerung 4 des Profilstabes 3 kann an einer HĆ¼lse 4.1 (
Im Bereich der Anlenkstelle 4 des Profilstabs 3 an der TrƤgerstange 5 werden zweckmƤĆigerweise AnschlƤge vorgesehen, zwischen denen der Profilstab 3 relativ zur TrƤgerstange 5 verschwenkbar ist, wobei die AnschlƤge zweckmƤĆigerweise mit einer Elastomerbeschichtung bzw mit einem DƤmpfungspolster versehen werden,In the region of the
Auch kann eine Federbeaufschlagung vorgesehen werden, die einer Schwenkbewegung des Profilstabes 3 aus der Stellung der
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
In particular, a leaf spring can be provided on the
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
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
Der zweite Anschlag 9 ist nachgiebig mit einer Gegenkraft abgestĆ¼tzt, wie nachfolgend anhand der
The
Nach Anlage der TrƤgerstange 5 am zweiten Anschlag 9 in der Zwischenstellung der
Das freie Schwingen des Balles 1 aus der Ausgangsstellung in
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
Bevorzugt wird der DƤmpfungsanschlag 9 Ć¼ber ein drehbar gelagertes Gegengewicht 11 beaufschlagt, das in
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
On both sides of the
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
Aus der Endstellung in
Bei dieser Ausgestaltung dient der GasdruckdƤmpfer 8 dazu, dass die RĆ¼ckholung des Balles 1 mit gleichmƤĆiger Geschwindigkeit ablƤuft und der Ball 1 wieder ruhig in der Ausgangsposition der
Vorzugsweise wird ein Anschlag 11a fĆ¼r das Gegengewicht 11 in der Endstellung vorgesehen, der in
Wie
Der Lagerbock 6 ist auf der Basisplatte 100 befestigt, die um eine in
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
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
By turning the
By a double arrow P is in
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
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
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
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
Der einfacheren Darstellung wegen sind an der Anlenkstelle des Profilstabes 3 an der TrƤgerstange 5 die die Schwenkbewegung des Profilstabes 3 begrenzenden AnschlƤge weggelassen.
For ease of illustration, the pivotal movement of the
Gleiche oder entsprechende Bauelemente sind mit den gleichen Bezugszeichen versehen wie in
Die
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
Auch diese AusfĆ¼hrungsform kann auf einem Gestell 200, 202 hƶhenverstellbar positioniert werden.This embodiment can also be positioned vertically adjustable on a
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 (
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.
Denoted at 20 is a bearing B fixed at the free end of a double-
The left end of the double-
In der Ausgangsstellung der
Die Ausweichbewegung des Profilstabes 3 in Verbindung mit der gekrĆ¼mmten Form, wie in
Aus der Endstellung in
Bei dieser Schwenkbewegung der TrƤgerstange 5 im Gegenuhrzeigersinn aus der Endstellung in
Anstelle eines DƤmpfers 8.1 in
Auf der geschlossenen Haube 200b ist das Handrad 300 angeordnet, wie die Draufsicht in
Nachdem die TrƤgerstange 5 in Schlagrichtung des Balles 1 verschwenkbar ist und relativ zum GehƤuse seitlich verschwenkt wird, wie
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
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.
In a bore of the
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
Ćber 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
Between
Over the plate 100 ', the
At 505, another plastic plate is provided between the
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
Das beschriebene ĆbungsgerƤt 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 Ćben 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
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
Claims (14)
- 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). - 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).
- Unit according to one of the preceding claims, wherein the pivotable mounting of the profile bar (3) is adjustable along the support rod (5).
- Unit according to one of the preceding claims, wherein the profile bar (3) is curved.
- Unit according to one of the preceding claims, wherein the profile bar (3) is designed longer than the support rod (5).
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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).
- 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).
- Unit according to one of the preceding claims, wherein the first stop (8) is formed by a gas spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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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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EP15735677.5A Active EP3169413B1 (en) | 2014-07-17 | 2015-07-07 | Tennis training device |
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US (1) | US10065099B2 (en) |
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JP (1) | JP6571769B2 (en) |
CN (1) | CN106999759B (en) |
DE (1) | DE202014103293U1 (en) |
ES (1) | ES2699087T3 (en) |
PL (1) | PL3169413T3 (en) |
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Families Citing this family (13)
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DE202014103293U1 (en) * | 2014-07-17 | 2015-01-09 | Josef Dagn | Tennis training device |
AU201615730S (en) * | 2016-04-11 | 2016-11-14 | Hamilton Man Group Limited | Football training device |
AU201615732S (en) * | 2016-04-11 | 2016-11-14 | Hamilton Man Group Limited | Football training device |
USD838330S1 (en) * | 2016-05-20 | 2019-01-15 | TopspinPro Ltd. | Tennis teaching aid |
DE202016105816U1 (en) * | 2016-10-18 | 2017-02-08 | Josef Dagn | Tennis training device |
CZ2017144A3 (en) * | 2017-03-16 | 2018-06-06 | LudvÄĀk Popelka | A simulator for practicing tennis strokes |
TWI652095B (en) * | 2018-06-06 | 2019-03-01 | ę±å³å¤§åø | Ping Pong Strike Exerciser |
KR102020151B1 (en) * | 2018-06-07 | 2019-09-09 | ķģ±ź· | swing training device assembly for table-tennis |
IL263060A (en) * | 2018-11-15 | 2020-05-31 | Strikecosense Ltd | A ball striking training simulator |
CN110356587A (en) * | 2019-08-29 | 2019-10-22 | äøå½čŖē©ŗå·„äøéå¢å ¬åøę²é³é£ęŗč®¾č®”ē ē©¶ę | A kind of undercarriage control experiment loading unit |
CN112354162B (en) * | 2020-11-16 | 2022-01-04 | åęåøčå¤§å¦ | External ball-falling table tennis ball supply and swing speed monitoring device |
TWI774222B (en) * | 2020-11-24 | 2022-08-11 | č”č²å« | Rotary body structure |
US11833407B1 (en) * | 2022-05-13 | 2023-12-05 | David Zywicki | Spin n grin |
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US2578313A (en) * | 1949-12-14 | 1951-12-11 | Moseley Nicholas | Game practice device |
US2713487A (en) * | 1952-09-20 | 1955-07-19 | Jaediker George Alon | Tennis practice device |
GB1269328A (en) * | 1969-10-31 | 1972-04-06 | Douglas Lincolne Vincent | Sports trainer and game |
US3876203A (en) * | 1974-04-04 | 1975-04-08 | Philip Gold | Device for use in practicing tennis strokes |
US3924853A (en) * | 1974-09-19 | 1975-12-09 | Harold F Schleeger | Tennis practice device |
US4089521A (en) * | 1976-08-25 | 1978-05-16 | Berst Theodore H | Tennis stroke trainer |
US4105203A (en) * | 1977-01-11 | 1978-08-08 | Tae Han Cho | Tennis trainer |
US4204678A (en) * | 1977-08-15 | 1980-05-27 | Weis Ray P | Tennis playing apparatus |
US4258916A (en) * | 1979-07-24 | 1981-03-31 | Beam Billy G | Batting practice stand |
JPS5822165U (en) * | 1981-08-01 | 1983-02-10 | ē„ē°ćē“äøé | batting practice device |
US4531734A (en) * | 1984-07-30 | 1985-07-30 | Herrick Robert M | Tennis practice device |
US4679790A (en) * | 1986-03-12 | 1987-07-14 | Ham Yong S | Baseball exercising device |
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US5203558A (en) * | 1990-08-27 | 1993-04-20 | An Benjamin J | Unidirectional flexible spinner |
JPH06182016A (en) * | 1992-12-15 | 1994-07-05 | Shinatsupusu:Kk | Tennis training machine |
US5393050A (en) * | 1993-11-26 | 1995-02-28 | Lloyd; Anthony L. | Ball striking practice device |
US5685542A (en) * | 1994-06-13 | 1997-11-11 | Weis; Raymond P. | Tennis teaching apparatus |
US6458037B1 (en) * | 2000-08-02 | 2002-10-01 | Nicholas E. Dixon, Jr. | Self-training batting practice machine |
US6659891B2 (en) * | 2001-02-12 | 2003-12-09 | Anthony Ivor Lloyd | Ball striking practice device |
US20060035729A1 (en) * | 2004-08-16 | 2006-02-16 | Ling-Wan Wang | Strike trainer |
US7070520B1 (en) * | 2004-09-30 | 2006-07-04 | An Benjamin J | Sports training device for hitting a ball |
US20070054756A1 (en) * | 2005-09-07 | 2007-03-08 | Hanson Vachel L | Batting practice aid |
JP2012011071A (en) * | 2010-07-02 | 2012-01-19 | Takahiro Yamakawa | Golf practice implement |
DE202011107013U1 (en) | 2011-10-20 | 2011-12-29 | Josef Dagn | Tennis training device |
US8574101B2 (en) * | 2011-11-08 | 2013-11-05 | Fullcourt Tennis Llc | Training device to enhance hand-eye coordination |
CN202961798U (en) * | 2012-10-16 | 2013-06-05 | äøåå Ø | Tennis training device |
CN203001877U (en) * | 2012-12-27 | 2013-06-19 | å§åÆē | Assisted training device for tennis backhand volley batsmanship |
US9149707B2 (en) * | 2013-11-19 | 2015-10-06 | Hayden Alexander Cochran | Ball hitting teacher |
DE202014103293U1 (en) * | 2014-07-17 | 2015-01-09 | Josef Dagn | Tennis training device |
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2014
- 2014-07-17 DE DE202014103293.2U patent/DE202014103293U1/en not_active Expired - Lifetime
-
2015
- 2015-07-07 EP EP15735677.5A patent/EP3169413B1/en active Active
- 2015-07-07 ES ES15735677T patent/ES2699087T3/en active Active
- 2015-07-07 US US15/326,586 patent/US10065099B2/en active Active
- 2015-07-07 JP JP2017522728A patent/JP6571769B2/en active Active
- 2015-07-07 WO PCT/EP2015/065471 patent/WO2016008767A1/en active Application Filing
- 2015-07-07 CN CN201580049590.XA patent/CN106999759B/en active Active
- 2015-07-07 PL PL15735677T patent/PL3169413T3/en unknown
Non-Patent Citations (1)
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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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