TW201336559A - A sports training apparatus - Google Patents

Abstract

A sports training apparatus includes a base for mounting onto a support. A rod is attached to the base in a manner in which at least part of the rod can extend beyond the base so that when the base is mounted on the support, the rod extends above the support. An elastic cord is attached to the rod at one end. A ball is attached to another end of the cord. The rod is positioned so that when a tension is set up in the cord as a result of movement of the ball away from the support in one direction, the rod and the cord can cooperate to facilitate the return of the ball over the support in an opposite direction when the cord contracts.

Description

Sports training equipment

The present invention relates to sports training apparatus, and the present invention also provides a sports training kit.

Many types of sports training equipment, including racquet sports equipment such as tennis trainers, provide directional repetitive motion to allow the user to repeat a certain shot or move.

Ideally, the user or athlete does not have to smash the ball after each shot, and various launchers that can launch many balls have already achieved this function to some extent, but such a launcher has many drawbacks.

Large and bulky ball machines are difficult to transport and install. Usually the ball needs power, which may not be suitable for training environments in remote areas. The ball feeder also needs to provide a large number of balls when in use. Moreover, once all the balls are launched, the server needs to be refilled. This process can be tedious and time consuming.

In addition to the above-mentioned defects, unlike the randomness of the movement, the serve is often only served in a predetermined pattern, and as a result, the user can easily predict the flight path of the ball.

The present invention provides a sports training apparatus comprising: a substrate mounted on a support; a rod coupled to the substrate and at least a portion thereof extendable beyond the substrate such that the rod extends to support when the substrate is secured to the support Above the object; elastic rope, one end attached to the rod; and the ball, which is placed at the other end of the elastic rope, places the rod in a suitable position to cause the elastic rope to be pulled when the ball moves away from the support in one direction Long, when the elastic rope contracts, the rod and the rope can cooperate to return the ball back over the support.

The rod may be resilient, capable of flexing toward the direction of movement of the ball away from the support as the elastic cord extends, assisting the ball to return when the elastic cord is contracted and the rod is straightened so that the user can repeatedly hit the ball.

It will be appreciated that the height of the rod above the support also helps the ball to return over the support.
The rod can be elongated and shaped from a material that allows the rod to flex or flex as the struck ball moves away from the support and stretches the elastic cord away from the rod.

The rod may be provided with a pivot or a hinge for rotating or swinging between the working position and the inoperative position with respect to the substrate, the working position being a position at which the rod extends above the support when the substrate is fixed on the support; The non-working position means that the rod extends below the support to avoid blocking the ball from returning over the support.

The sports training apparatus can include a hinge or joint for attaching the rod to the base plate to move the rod between the working position and the inoperative position in a pivotal or hinged manner.

The joint may allow the rod to be rotated or swung from the working position to the inoperative position centered on the pivot by gravity, and one of the joint and the base plate may be combined or include a stopper to move over when the ball is hit The support sometimes causes the rod to remain in the working position when it leaves the inoperative position. The return of the ball and subsequent slack of the rope causes the rod to swing back down to the inoperative position under the force of gravity so that the ball moves back over the support without the rod being blocked.

The rod can be connected to the joint in a detachable manner. In one embodiment, the joint may include a tubular portion defining a passage for the placement of the rod, a grub screw, a clamp device or other fastening means for securing the rod in the passageway, the attachment means allowing the rod to be released or removed Or adjust the length or height of the rod above the support.

The joint can be configured to provide movement in two dimensions of freedom. Thus, the joint can be a universal joint or can be a complete joint with two hinge regions or locations. The rod can also be tilted from one side to the other so that it changes in accordance with the way the ball travels.

The substrate may comprise a plate which may have mounting, clamping or fastening means for securing the plate to the support. The device can allow the board to be removed and replaced.

The stopper may be a plug disposed between the joint and the end of the plate, and the direction of the clamping or fastening means may be arranged to position the plug above the joint when the plate is mounted on the support. Thus, when the rod is rotated toward the working position, the plug is in a position to block the rod. The plug can be made of an elastic vibration absorbing material such as rubber.

The plug can have several different shapes, for example the plug can be a cylinder that presents a circular blocking surface. The joint is a universal joint or a composite joint, and the plug can extend through the plate to accommodate the rotation and movement angle of the rod.

The plate may be generally rectangular in shape and may define laterally opposite inwardly extending grooves for wrapping the cord around the plate to facilitate storage of the sports training apparatus.

The plate also defines apertures that are shaped and sized to receive the ball in a friction fit to facilitate loading of the device.
The panel may include a strap attached thereto to facilitate binding the lower end of the panel during operation to the support to stabilize the panel during use.

The rope may be made of latex or rubber or a material similar in nature to latex or rubber, and the latex may be natural or synthetic. The elastic cord may be a solid cord having a diameter of between about 2 mm and 4 mm, for example 3 mm. The elastic rope can be changed to a tubular shape so that its quality is smaller than a solid rope of similar size, and the elasticity is similar to that of a solid rope. In one embodiment, the outer diameter of the tubular rope is between about 3 mm and 5 mm, and the inner diameter is between about 2 mm and 4 mm, and the length of the cord is between about 3 and 15 meters. It can be understood that this length can be changed according to the actual application.

The rope and the rod can be connected using a swivel connector mounted at one end of the rod, the swivel connector allowing the rope to rotate relative to the rod to prevent entanglement of the rope and resulting entanglement.

The rope can be releasably attached to the rod so that the rope can be replaced when needed. For example, the cord can be releasably attached to the swivel connector.

The length of the rod is between about 40 cm and 70 cm, for example the rod length can be between about 55 cm and 65 cm, and in one embodiment the rod length is about 58 cm. The bottom of the rod has a diameter of between about 5 mm and 9 mm and a top diameter of between about 1 mm and 5 mm. For example, the bottom diameter of the rod can be between about 6 mm and 8 mm, which in one embodiment is about 7 mm; and the top diameter is between about 2 mm and 4 mm, and in one embodiment about 3 mm.

A fixed length rod can be replaced with a telescopic rod so that its length can be adjusted if necessary.

In addition, the rod and the hinge or joint can be configured to allow the rod to freely rotate relative to the hinge or joint while maintaining linear motion, which can further aid in the movement of the rope across the net and further prevent its entanglement.

In the case where the ball is a tennis ball, a clip can be configured for clamping to the upper edge portion of the tennis net. The strap may include a hook-and-loop configuration like the Velcro ^(TM ) for securing the lower end of the panel to the tennis net.

The plate can define a hole to form a handle. In use, the strap can be used to secure the panel to the net through the handle.

The invention may also be extended to a sports training apparatus comprising a substrate mounted on a support; a rod attached to the substrate and at least a portion thereof being extendable beyond the substrate such that the rod extends when the substrate is mounted on the support Above the support; an elastic rope, one end of which is connected to the rod and the other end to the ball, the rod is placed in a suitable position to move the ball in one direction away from the support to create tension in the elastic rope, As the rope contracts, the rod and the rope can cooperate to return the ball back over the support.

The sports training apparatus can include a cord and a connector coupled to the other end of the cord to allow the ball to be releasably coupled to the cord.

The present invention also provides a sports training kit that includes a racket and a sports training apparatus as above.

The sports training kit can include a pouch for bagging the racket and sports training equipment.

The sports training apparatus may include one or more of the options or features defined herein, illustrated, and illustrated by the accompanying drawings. For example, the sports training apparatus of the present invention may or may not be equipped with a cord and/or a ball.

The racket can be a tennis racket.

The shape of the board or substrate of the sports training apparatus can generally conform to the shape of the racket head frame so that the racket and the sports training apparatus can be stored or carried with the board, the board being within the edge of the racket and covering the strings of the racket.

The bag may be a racquet cover, in which case the rod may be removed from the hinge and placed within the racquet cover.

In order for the user to practice on the net himself, the present invention also provides a method of urging the ball back to the user's side, which includes equipping a tennis court or similar venue with a sports training apparatus similar to that described above.

The sports training apparatus may include one or more of the options or features specified herein, illustrated, and illustrated by the accompanying drawings.

The sports training apparatus according to the present invention may itself take a variety of forms. In the following, it will be convenient to describe the embodiments of the present invention in detail with reference to the accompanying drawings. The detailed description is provided to teach a person interested in the subject matter of the present invention how to achieve the practical effect of the present invention. However, it will be apparent that the features described in detail do not replace the generality previously described broadly.

In the drawings, reference numeral 10 generally represents a sports training apparatus in accordance with the present invention. In the present embodiment, the sports training apparatus is a training apparatus for a form of ball sports with a net, and tennis training is an application example.

The training apparatus 10 includes a substrate 12 for mounting on a support. In the present embodiment, the substrate 12 is mounted on an upper edge portion of a net 14 such as a tennis court (as shown in Figs. 2A to 2C). The training apparatus 10 further includes a rod 16 attached to the substrate 12 in a manner that at least a portion thereof extends beyond the substrate 12 such that when the substrate 12 is mounted on the mesh 14, the rod 16 can be extended over the mesh 14, As shown in Figure 2B.

One end of the elastic cord 18 is coupled to the rod 16 which is coupled to the other end of the elastic cord 18. Ring 19 (shown in Figures 3 and 5) is attached to ball 20. A connector 21 such as a clamp or a swivel connects the ball 20 and the rope 18 to each other. The connector 21 allows the ball 20 to pivot or spin about the pivotal axis 18 relative to the elastic cord 18, which helps prevent the cord 18 from being entangled and entangled.

Positioning the rod 16 in position such that when the ball 20 is moved away from the web 14 (as shown in Figure 2B) causing the rope 18 to be lengthened or taut, the rod 16 and the rope 18 when the rope is retracted It is possible to synergistically promote the return of the ball 20 over the mesh 14 (as shown in Figure 2C).

The substrate 12 is generally a rectangular plate having recesses 22 recessed on opposite sides in the lateral direction for winding the cord 18 around the substrate 12, with the result that the instrument 10 is conveniently stored.

The substrate 12 is also provided with apertures 24, which are generally circular, and are shaped and sized to receive the tennis ball 20 in a friction fit, as well as to facilitate storage of the instrument 10. The groove 26 extends from the circular aperture 24 to receive a portion of the cord 18 adjacent the tennis ball 20.

The substrate 12 has a length of between about 300 mm and about 400 mm, preferably 360 mm, and a lateral width of between about 200 mm and about 300 mm, preferably 240 mm.

The substrate 12 can be a variety of different materials, for example, the substrate 12 can be a wood, molded plastic or composite material such as a fiberglass composite or a carbon fiber composite.

The substrate 12 also defines a generally T-shaped aperture 28 to form a handle 30. In use, the strap 32 passes through the T-shaped aperture 28 to secure the lower end of the base 12 in use on the tennis net 14 to resist tilting of the substrate 12 in use. Velcro band 32 as comprising a hook as ^TM - ring structure, for the lower substrate 12 is fixed on the tennis net 14. The width of the T-shaped aperture 28 is approximately 2.5 cm.

The substrate 12 includes a clamping device 34 for temporarily securing the substrate 12 to the upper edge of the mesh 14, as shown in Figures 2A through 2C.

The instrument 10 includes a joint 38 for attaching the rod 16 to the substrate 12. The joint 38 enables the rod 16 to be pivoted about the pivot between the working position and the inoperative position or by a hinge, wherein the working position is such that when the substrate 12 is secured to the web 14, the rod 16 projects above the web 14. Position; the non-working position means that the rod 16 extends below the support to avoid obstructing the ball 20 from returning past the net 14. The pivoting motion of the lever 16 about the pivot is indicated by arrows 17 in Figs. 2A to 2C.

The joint 38 includes a passage defined by the fixed tube 40 for receiving the rod 16; a countersunk screw 37 or the like is passed through the hole 43 to support the rod 16 and is fixed in the fixed tube 40. Thus, the rod 16 is detachable, so it is easy to loosen and remove the rod 16. In addition, the effective height of the rod 16 above the net 14 can be adjusted by loosening the countersunk screw 37 and sliding the rod 16 in the fixed tube 40. It will be appreciated that the height of the rod 16 can be adjusted by other means, such as by forming the rod 16 in the form of a telescoping rod. The height adjustment allows the instrument 10 to adapt to the user's style and to harmonize with the characteristics of the desired ball flight.

The joint 38 includes a post 39 mounted on the base plate 12 and extending from the base plate 12, and the fixed tube 40 is mounted to the post 39 by means of a rotating device or pivot mechanism 41.

With the rod 16 shortened, the leg 29 of the T-shaped aperture 28 receives the lower portion of the rod 16 as the rod 16 is pivoted down. The width of the legs 29 is between about 20 mm and 30 mm, preferably 25 mm. The length of the T-shaped aperture 28 is between about 150 mm and 250 mm, preferably 200 mm.

A stopper in the form of a stopper 35 is mounted on the substrate 12, and the plug 35 is placed between the joint 38 and the upper end 45 of the substrate 12 during operation. The orientation of the clamping device 34 is such that when the substrate 12 is mounted on the mesh 14, the joint 38 and the plug 35 are placed on the longitudinal axis of the substrate 12 with the plug 35 above the joint 38. Thus, when the rod 16 is pivoted or pivoted to its upright position, the plug 35 is in a position to block the rod 16, typically the cylinder 35 is a cylindrical body formed of a resilient shock absorbing material such as rubber.

The joint 38 and the plug 35 are approximately 80 mm to 100 mm apart, preferably 110 mm apart. It will be appreciated that the distance between the joint 38 and the plug 35 is selected to optimize the performance of the rod 16 so that it provides the required force to the return stroke of the ball 20 together with the rope 18, thus the joint 38 and the plug 35 Other distances can also be selected.

Specifically, the joint 38 is spaced from the plug 35. When the ball is thrown upward, the ball 20 is caused to exert a force on the rod 16 to create a whipping effect. The rod 16 strikes the plug 35 and bends to return the ball 20.

Moreover, the height of the rod 16 helps to ensure that the ball 20 can skip the net 14 when the ball 20 is properly hit and returned; when the ball 20 returns, the rope 18 relaxes, at least due to the action of the center of gravity of the rod 16 and the reaction of the plug 35 The help of the force causes the rod 16 to flip down so that the ball 20 returns over the top of the net 14 without being obstructed by the rod 16.

The cord 18 is solid and made of latex or rubber. The cord 18 has a diameter of from about 2 mm to about 4 mm, preferably 3 mm. The rope 18 can be changed to a tubular shape such that its quality is less than a solid rope of similar size, and the elasticity is similar to a solid rope. In the present embodiment, the rope 18 has an outer diameter of about 3 mm to 5 mm, an inner diameter of about 2 mm to 4 mm, and a rope 18 of about 4 to 5 meters. However, it can be understood that this length can be changed according to the actual application.

In summary, when the tennis ball 20 is struck over the tennis net 14, the rope 18 is stretched or stretched, causing the rope 18 to be tightened or taut, with the result that the rod 16 can apply a pulling force to the rope 18. As described in more detail below, the rod 16 is configured to mate with the cord 18 to allow the tennis ball 20 to return over the web 14.

The rod 16 is stretched or molded from a suitable material such as graphite, carbon fiber or glass fiber. These materials allow the rod 16 to deviate from its original shape or elastically when the ball 20 is struck over the tennis net 14 and away from the rod 16 to tighten the rope 18, for example, a suitable rod 16 can be similar to the raft used for fishing. Thus, the rod 16 can be a fiberglass composite, and other suitable materials include plastic or metal articles such as spring steel and aluminum alloys, or aluminum alloy steel. It will be appreciated that the size of the cross section of the rod will vary depending on the type of material used.

The rod 16 has a length of about 400 mm to 700 mm, preferably 580 mm, and is tapered from its lower end during operation to its upper end when it is in operation. When the rod 16 is made of a glass fiber composite material, the bottom portion has a diameter of about 5 mm to 9 mm, preferably 9 mm; and the top portion has a diameter of about 1 mm to 5 mm, preferably 3 mm.

Also included at one end of the rod 16 is a slewing ring or pivot mount 64 and a ring 66 for attaching the cord 18 to the slewing ring 64. The slewing ring 64 allows the ring 66 to rotate to accommodate at least some degree of rotation of the ball 20, avoiding excessive entanglement of the rope 18 to cause entanglement. It should be understood that the cord 18 can also be removed from the mounting member 64 as needed. For example, the cord 18 can be attached to or detached from the mounting member 64. Thus, it is foreseen that the instrument 10 may or may not be equipped with a cord 18 and/or a ball 20.

Referring to Figure 3, a third diagram shows a sports training kit 50 that includes a tennis racket 52, and a training apparatus 54 in accordance with another embodiment of the present invention. The kit 50 also includes a package (not shown) that is similar in shape to a tennis racket for packaging the tennis racket 52 and the tennis training apparatus 54. Referring to Figures 1 and 2, the same reference numerals refer to the same parts unless otherwise specified.

The training apparatus 54 includes a plate 58 that is generally shaped to conform to the head frame of the tennis racquet 52. Therefore, the tennis racket 52 and the tennis training apparatus 54 are generally overlapped with each other into the sleeve. The size of the substrate 58 is determined to fit within the head frame 59 of the tennis racquet 52.

The sleeve can define a hole for allowing the tab 38 to extend through the aperture when the tennis training device 54 is placed in the sleeve together with the tennis racquet, or the rod 16 can be placed within the sleeve along the length of the tennis racquet 52. .

Further, the plate 58 of the tennis training apparatus 54 replaces the circular aperture in which the tennis ball 20 is placed with its enlarged aperture portion 62 for receiving the tennis ball 20 in a friction fit.

The training apparatus 54 is further illustrated in detail in Figures 4 through 9.

The clamping device or clip 34 is made of an elastically flexible material such as plastic or spring steel that defines the rear clip 68 and the leading edge 70 such that the clip 34 is placed at the end 45 of the substrate 58. The end 45 has a recessed portion 72 for receiving the clip 34.

The recessed portion 72 defines an aperture 74 that aligns with the aperture 76 in the leading edge 70 when the leading edge 70 is secured to the plate 58 with fasteners 78.

The plate 58 defines a series of positioning structures 80 at the periphery of the aperture 74. The plug 35 has a base 82 that defines a series of complementary positioning features 84 that are inserted into the aperture 74 through the aperture 76. 84 engages with a series of positioning structures 80.

The base 82 also defines a stop structure 86 that secures the base 82 in the bore 74 and secures the base 82 in the bore 74 using suitable fasteners 88.

A barrier 90 of rubber, synthetic rubber or the like is attached to the base 82.

The post 39 of the joint 38 has a pair of brackets 92 extending from the base 96. The plate 58 defines a receptacle 94 into which the base 96 is placed. The receptacle 94 and the base 96 define a complementary nesting structure 98 for rotatably securing the base 96 to the base plate 58. The fastener 100 is threaded into the base 96 through the bottom plate 102 of the receptacle 94 to secure the base 96 in the receptacle 94.

A pair of brackets 92 define an aligned inwardly extending pivoting structure 104. The bracket 106 extends from the fixed tube 40. The bracket 106 defines an aperture 108. Each pivot mechanism 104 is mounted in a bore 108. The direction of the struts 39 is arranged such that the fixed tube 40 rotates in a plane that substantially bisects the substrate 12 longitudinally.

The tubular sleeve 114 extends from the fixed tube 40. The inside of the tubular sleeve 114 is hexagonal for receiving the nut 116 to lock the nut 116 against rotation. The locking screw 118 has a screw 120 and a nut 122 to urge the screw 120 through the nut 116 to press the rod 16. Thus, when the locking screw 118 is released, the lever 16 can be moved to a desired position or removed. When the rod 16 is in the desired position, the screw 118 is rotated to cause the screw 120 to press the rod 16 to secure the rod 16.

The rope winding groove 124 extends from the T-shaped hole 28 to one of the grooves 22 so that the rope 18 is wound around the plate 58 for storage.

As can be seen in Figure 5, the strip 32 has a portion 126 of hook-and-loop securing material aligned along its length, and another portion 128 of the hook-and-loop securing material is disposed within the bounding box of the T-shaped aperture 28 of the substrate 58. On the surface. Thus, by attaching one end of the strap 32 to the inner surface, the strap 32 is threaded through the mesh and the other end of the strap 32 is also attached to the inner surface, the strap 58 can be secured to the mesh by the strap 32. on.

Figures 6 and 7 show the approximate relative size and orientation of the components of the training apparatus 54. In particular, the choice of dimensions A, B, and C can have a substantial impact on the manner in which the training device operates.

The dimension A is the height or length of the plug 35; the dimension B is the distance from the surface 132 of the plate 58 to the centerline 130 of the fixed tube 40; the dimension C is the distance from the axis of rotation 134 of the rod 16 to the plug 35 in the plane of rotation of the rod 16. .

In this embodiment, the dimension A is about 30 mm to 40 mm, preferably 33 mm to 37 mm; the dimension B is about 35 mm to 50 mm, preferably 35 mm to 40 mm; and the size C is about 90 mm. Up to 100 mm. In one embodiment, dimensions A and B are selected such that when the rod 16 abuts the stopper 35, the major axis of the rod 16 is offset from the end 45 of the plate 58 by an angle between 0 and 10 degrees, such as 5 degrees. In addition, the distance C is selected to cause the rod 16 to be properly whipped or dynamically bent when the rod 16 hits the stopper 35.

Figures 8 and 9 illustrate two different examples of the structure of the board 58. In Fig. 8, the plate 58 is cast into an arched shape such that the plate 58 is similar in rigidity to the solid plate but has no solid plate weight. In Fig. 9, the plate 58 may be solid, or a method of adding a backing plate 112 to the plate shown in Fig. 8 may be employed from the viewpoint of aesthetics.

During use, when the user wants to train, the cord 18 is unwound from the base 12 and the base 12 is secured to the upper edge of the tennis net 14 by clips 34 and 32 (as in Figures 2A through 2C). Shown).

At rest, the rod 16 is placed in position 16.1 as shown in Figure 2A; when the user hits the tennis ball 20 over the tennis net 14 with sufficient force, the tennis ball 20 tightens the rope 18 and the taut rope 18 The rod 16 is then pulled to its upright position. When the lever 16 is moved to the position described in FIG. 2B, the starting position of the above movement is as indicated by 16.2 in FIG. 2A.

When the rod 16 reaches its upright position, it is pressed against the stopper 35, and while the rope 18 is being tensioned, the further tightened rope 18 causes the rod 16 to be bent from the initial shape, as shown in Fig. 2B.

When the inertia of the tennis ball 20 is exhausted under the influence of the elastic rope 18, the lever 16 returns to its original shape, with the result that the lever 16 pulls the rope 18 to pull the ball 20. Thus, the action similar to whipping is used to cause the ball 20 to return past the tennis net, as shown in Figure 2C.

The return of the tennis ball 20 enables the user to repeatedly hit the tennis ball 20 with the movement of the lever 16 as indicated by the arrow 17.

In addition, the training apparatus allows the tennis ball to bounce to the other side of the net before returning to the user side. In this way, when playing, the user can be inferred to his or her accuracy. This is not possible when the user is only training against the wall.

It will be appreciated that the relative size, weight and choice of materials determine the operational characteristics of the training apparatus 10,54.

For example, the actual average height of the tennis net is about 90-94 cm, so the length of the selector rod 16 is such that the returning ball 20 is easier to pass over the net. As described above, when the lever 16 hits the plug 35, there is an angle between the lever 16 and the plate 58. This angle is chosen such that when the rope 18 is released the rod 16 will immediately sag under the force of gravity, causing the ball 20 to pass back over the net 14 without hitting the rod 16.

Additionally, in one embodiment, the total weight of the selector lever 16 and the slewing ring 64 is approximately 8% to 12%, preferably 10% lighter than the ball 20. This weight, along with the above angles, helps the rod 16 to sag in a very short time to avoid obstructing the ball 20.

In one embodiment, the slewing ring 64 is heavier than the rod 16, for example, the slewing ring weighs about 4-6 grams, preferably 5 grams, while the rod 16 is lighter, about 1-3 grams. Thus, the weight of the slewing ring 64 and the angle of the rod 16 relative to the base plates 12, 58 together help the rod 16 to exit the return path of the ball 20. In this embodiment, the weight of the ball 20 is about 60-70 grams, preferably 66 grams, and the weight of the selector rod 16 is about 10-20 grams, preferably 16 grams.

It will be appreciated that the relatively high weight of the ball 20 over the rope 18 and the rod 16 allows the ball 20 to reciprocate on the net in a natural manner. In addition, the choice of size, weight and material allows the rod 16 to swing back and forth in a consistent and smooth pendulum motion, allowing the athlete to form a rhythm while still facing a more realistic ball than from a wall or from a tennis ball machine. ball.

Understandably, athletes of different heights will have different hitting needs. As noted above, the length of the rod 16 extending above the base plates 12, 58 is adjustable, and this adjustment can be used to adjust the training apparatus 10 or 54 to suit the height of the athlete.

The ball 20 can be either a standard tennis ball or a high-elastic tennis ball. The ball 20 can be configured to be attached to the rope 18 while having similar characteristics (e.g., weight and elasticity) to standard tennis balls. For example, the connector 21 can be releasable to allow the tennis ball to be attached to the rope and replaced as needed. It will be appreciated that other ways can be used to enable the ball 20 to be connected and replaced as desired. Therefore, the rope 18 and the ball 20 can be replaced as needed.

Ball 20 can be attached to cord 18 or loop 19 in any conventional manner. For example, the cord 18 or loop 19 can be attached to a peg located in the ball 20. The ball 20 can then be sealed as needed to maintain pressure.

At present, a machine for launching a tennis ball can be used. However, such a machine serving action is foreseeable, thereby making the user numb in the habit. The training apparatus 10 contains a degree of unpredictability, especially after a bouncing of the ball, because it is difficult to assess which direction the ball will go from and how to return over the net. This unpredictability improves the training experience.

Throughout the specification, the scope of the patent application is also included, and the terms "including", "comprising", "including", etc. are to be construed to include the claim The overall meaning.

It will be understood that the terminology used above is for the purpose of description and should not be construed as limiting. The described embodiments are intended to be illustrative of the invention and not to limit the scope of the invention. It will be apparent to those skilled in the art that the present invention can be implemented by various modifications and additions.

The above description describes an embodiment of a sports training apparatus that is within the scope of the patent application, the scope of which is intended to include variations, modifications, or enhancements of the embodiments that are obvious to those skilled in the art. Accordingly, the above description in the drawings should not be construed as implying that any of the above-described materials are essential to the physical training device defined in the scope of the patent application, unless otherwise explicitly indicated in the above description.

Any number or range described herein is an approximation, and the range of values recited is intended to cover the individual values in the range to achieve the effect of a single description.

10. . . instrument

12. . . Substrate

14. . . network

16. . . Rod

16.1. . . position

16.2. . . position

17. . . arrow

18. . . rope

19. . . ring

20. . . ball

twenty one. . . Connector

twenty two. . . Groove

twenty four. . . hole

26. . . Groove

28. . . T-shaped hole

29. . . leg

30. . . Handle

32. . . band

34. . . Clamping device

35. . . plug

37. . . Countersunk screw

38. . . Connector

39. . . pillar

40. . . Fixed tube

41. . . Pivot mechanism

43. . . Hole

45. . . Upper end

45. . . End

50. . . Kit

52. . . Tennis racket

54. . . Training equipment

58. . . Substrate

59. . . Head frame

62. . . Enlarged aperture section

64. . . Slewing ring

64. . . Mount

66. . . ring

68. . . Clips

70. . . Leading edge

72. . . Recessed part

74. . . hole

76. . . Opening

78. . . fastener

80. . . Positioning structure

82. . . Base

84. . . Positioning structure

86. . . Stop structure

88. . . fastener

90. . . Blocker

92. . . support

94. . . Jack

96. . . Base

98. . . Nested structure

100. . . fastener

102. . . Bottom plate

104. . . Pivoting structure

106. . . bracket

108. . . hole

114. . . Tubular sleeve

112. . . Backplane

116. . . Nut

118. . . Screw

120. . . Screw

122. . . Nut

124. . . groove

126. . . Part of hook-and-loop fixing material

128. . . Hook-loop fixing another part of the material

130. . . Center line

132. . . surface

134. . . Rotation axis

A. . . size

B. . . size

C. . . size

Figure 1 is a three-dimensional view illustrating one embodiment of a sports training apparatus in accordance with the present invention.
Fig. 2A is a side elevational view showing the sports training apparatus of Fig. 1 in an installed, standby or non-operating state, illustrating the manner in which the sports training apparatus lever moves.

Fig. 2B is a side elevational view showing the state in which the sports training apparatus of Fig. 1 is in use after installation, wherein the ball of the device leaves the user.
Fig. 2C is a side elevational view showing the state in which the sports training apparatus of Fig. 1 is in use after installation, in which the ball of the sports training apparatus moves back or returns in the direction of the user.
Figure 3 shows a three-dimensional view of a sports training kit in accordance with the present invention, including a racket and a sports training apparatus in accordance with another embodiment of the present invention.
Figure 4 is an exploded three-dimensional view of the sports training apparatus shown in Figure 3.
Figure 5 shows a three-dimensional view of the sports training apparatus shown in Figure 3.
Fig. 6 is a side view showing the sports training apparatus shown in Fig. 3.
Fig. 7 is a plan view showing the sports training apparatus shown in Fig. 3.
Figure 8 is a rear perspective view of the sports training apparatus shown in Figure 3 with an example of a substrate.
Fig. 9 is a rear perspective view showing another example of the substrate of the sports training apparatus shown in Fig. 3.

10. . . instrument

12. . . Substrate

16. . . Rod

18. . . rope

20. . . ball

twenty two. . . Groove

twenty four. . . hole

26. . . Groove

28. . . T-shaped hole

29. . . leg

30. . . Handle

32. . . band

34. . . Clamping device

35. . . plug

37. . . Countersunk screw

38. . . Connector

39. . . pillar

40. . . Fixed tube

41. . . Pivot mechanism

43. . . Hole

45. . . End

64. . . Mount

66. . . ring

Claims (15)

A sports training device comprising:
a substrate mounted on a support;
a rod attached to the substrate, at least a portion of the rod being extendable beyond the substrate such that when the substrate is secured to the support, the rod extends above the support;
An elastic cord to which one end of the elastic cord is attached;
a ball attached to the other end of the elastic cord, the rod being placed in position to cause the elastic cord to be elongated as the ball moves away from the support in one direction, when the elastic cord contracts, The rod and the rope can cooperate to return the ball in reverse over the support. The sports training apparatus according to claim 1, wherein the rod is elastic and can be bent in a direction in which the ball moves away from the support as the rope extends, when the rope contracts and the rod straightens Help the ball return so that the user can repeatedly hit the ball. The sports training apparatus of claim 2, wherein the rod rotates between a working position and a non-working position with respect to the substrate centering on a pivot, in which the substrate is mounted On the support, the rod extends above the support, and in the inoperative position, the rod extends below the support to avoid obstructing the return of the tennis ball over the support. The sports training apparatus of claim 3, comprising: a joint for mounting the rod on the base plate to rotate the rod about the pivot between the working position and the non-working position One of the joint and the base plate includes a limiter such that upon movement of the ball over the support after the ball is struck to cause the rod to move away from the inoperative position, the rod is stopped at the working position and the ball is returned The rope slack then causes the rod to swing back down to the inoperative position so that the ball moves back over the support without being blocked by the rod. The sports training apparatus of claim 4, wherein the rod is mounted on the joint in a manner that is detachable. The sports training apparatus of claim 5, wherein the joint comprises: a tubular portion defining a passage for receiving one end of the rod; and a fastening mechanism, the rod being fixed in the passage to facilitate The rod separates and removes or facilitates adjustment of the rod height. The sports training apparatus of claim 6, wherein the substrate comprises a plate that can be mounted on a ball mesh support. The sports training apparatus according to claim 7, wherein the stopper is a plug inserted between the joint and the end of a bottom plate, and when the bottom plate is mounted on the support, the limit is The positioner is placed over the joint and the limiter and the joint are placed in a position to block the rod that is rotated in an upright position. The sports training apparatus of claim 8, wherein the bottom plate defines a recess extending laterally inwardly for winding the rope around the substrate, and the bottom plate further defines a hole, The shape and size of the aperture is adapted to accommodate the ball in a friction fit. The sports training apparatus of claim 1, wherein a swivel connector is mounted at one end of the rod to connect the rope to the rod, allowing the rope to rotate relative to the rod to avoid The entanglement of the rope and the resulting tangles. A sports training device comprising:
a substrate mounted on a support;
a rod attached to the substrate, at least a portion of the rod being extendable outside the substrate such that when the substrate is mounted on the support, the rod extends above the support;
An elastic cord having one end connectable to the rod and the other end connectable to a ball, the rod being placed in position to create tension in the elastic cord as the ball moves away from the support in one direction When the elastic cord is retracted, the rod and the cord can cooperate to return the ball back over the support.
A sports training apparatus according to claim 11, comprising the cord, wherein a connector is coupled to the other end of the cord to allow the ball to be releasably coupled to the cord. A sports training kit comprising a racket; and a sports training apparatus as claimed in claim 1.
A sports training kit comprising a racquet; and a sports training apparatus as claimed in claim 11. The sports training kit of claim 13, wherein the base plate is shaped to fit within the racquet head frame while covering the chord of the racquet.