Training device for ball sports
10688370 ยท 2020-06-23
Assignee
Inventors
Cpc classification
A63B2210/50
HUMAN NECESSITIES
A63B69/406
HUMAN NECESSITIES
International classification
Abstract
A training device for ball sports comprises a launching structure comprising an aperture sized and shaped to allow balls to pass linearly through the aperture along the central axis of the aperture, and a launching means configured to contact a ball within the aperture at a plurality of contact locations spaced around the surface of the ball, and to drive the ball through the aperture, and; a supporting means configured to support the launching structure above a surface; the launching structure and supporting means configured such that in use the launching structure can be rotated about the central axis to alter the position of the contact locations.
Claims
1. A training device for ball sports, comprising: a launching structure comprising an aperture having a central axis, the aperture being sized and shaped to allow balls to pass linearly through the aperture along the central axis thereof: a launching mechanism configured to contact a ball within the aperture at a plurality of contact locations spaced around a surface of the ball, and to drive the ball through the aperture, the launching mechanism comprising a plurality of launching wheels connected to the launching structure so that each launching wheel partly extends into the aperture to contact a ball therein, the launching wheels being configured to rotate in use to drive the ball through the aperture; a supporting structure configured to support the launching structure above a surface; and wherein the launching structure and the supporting structure are configured such that in use the launching structure can be rotated around the central axis of the aperture to alter the positions of the contact locations.
2. The training device as claimed in claim 1, wherein the plurality of launching wheels comprises a pair of launching wheels at diametrically opposed locations.
3. The training device as claimed in claim 2, wherein the launching structure further comprises at least one motor configured to drive the pair of launching wheels.
4. The training device as claimed in claim 3, wherein the at least one motor and the launching wheels are configured so that the launching wheels can be driven at different speeds.
5. The training device as claimed in claim 2, wherein the spacing between the pair of launching wheels can be altered.
6. The training device as claimed in claim 2, wherein sides of each launching wheels are substantially straight.
7. The training device as claimed in claim 2, wherein the sides of each launching wheel comprises a gripping rubber layer.
8. The training device as claimed in claim 7, wherein the rubber layer comprises a saw tooth pattern around a perimeter of the respective launching wheel.
9. The training device as claimed in claim 8, wherein the saw tooth pattern has a ramp section which leads in use.
10. The training device as claimed in claim 1, wherein the launching structure comprises a frame forming the aperture and extending to each side of the aperture.
11. The training device as claimed in claim 10, wherein the supporting structure and launching structure are mutually configured for removable connection.
12. The training device as claimed in claim 1, wherein the supporting structure comprises a stand configured to rest on a surface and to extend upwards from the surface to connect with and support the launching structure.
13. The training device as claimed in claim 12, wherein the launching structure comprises a frame including a circular segment forming a rearward portion of the aperture.
14. The training device as claimed in claim 13, wherein the circular segment comprises a ring.
15. The training device as claimed in claim 13, wherein the stand further comprises a plurality of bearings, configured to connect with the circular segment to detachably mount the launching structure on the stand, and to allow the launching structure to be rotated around the central axis of the aperture to alter the positions of the contact locations.
16. The training device as claimed in claim 15, wherein the bearings are mounted on the stand, wherein each bearing forming a channel into which an outer edge of the circular segment is positioned, the circular segment moveable within the channel of each bearing to rotate the launching structure.
17. The training device as claimed in claim 15, wherein each bearing is formed so as to appear circular in front or rear view, and H-shaped in side view, wherein the H-shape of each bearing defines a channel having a width which is substantially the same as a thickness of the circular segment.
18. The training device as claimed in claim 15, wherein the stand further comprises a mounting loop, the bearings connected to a face of the mounting loop.
19. The training device as claimed in claim 18, wherein eight bearings are arranged in pairs along a length of the mounting loop, each bearing connected so as to rotate around a central axis of rotation of each bearing.
20. The training device as claimed in claim 18, wherein the stand and the mounting loop are configured so that the mounting loop can be rotated in both horizontal and vertical planes.
Description
BRIEF DESCRIPTION OF THE FIGURES
(1) Further aspects of the invention will become apparent from the following description which is given by way of example only and with reference to the accompanying drawings which show an embodiment of the device by way of example, and in which:
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DETAILED DESCRIPTION
(25) An embodiment of a training device for ball sports of the present invention will now be described with reference to the figures.
(26) The training device 1 of this embodiment is intended for use with soccer balls, for the practice of soccer skills. However, it should be noted that the scope of the invention is not limited to soccer, and that other embodiments could be used for other ball sports without departing from the scope of the invention.
(27) The training device 1 has two main parts: a base section 2 and a launching section 3.
(28) Base Section
(29) The base section 2 comprises an aluminium frame, generally appearing as a squared-off C-shape in plan view, as shown in
(30) An upright mounting pole 5 extends substantially vertically upwards from substantially the centre of the long upright side of the C. The upright mounting pole 5 is between 25 cm and 35 cm in length (height). The base section forms a stand for the launching section in use.
(31) A squared off U-shaped connection section 6 is mounted to the top of the upright mounting pole 5, the underside of the base of the connection section 6 connecting with the top of the mounting pole 5 at substantially the mid-point of the base. The connection is a rotating connection, so that the connection section 6 can be rotated from side-to-side (in the horizontal plane, around a vertical axis that runs down the centre of the mounting pole 5) to around 45 degrees each side of a central bisecting line that bisects the base section 2 in plan view. The rotational position of the connection section 6 can be locked, in this embodiment by a friction lock activated by way of handle 7 on the connection section 6.
(32) A semi-circular mounting loop 8 is connected to the squared off U-shaped connection section 6, the ends of the U generally congruent with the ends of the mounting loop 8, so that the semi-circle of the mounting loop extends downwards into the U, between the ends of the U. The connection between the ends of the U and the semi-circle is a pivoting connection, the axis of rotation or axis of pivot aligned horizontally, so that the mounting loop 8 can be rotated up/down, or backwards/forwards. A combination worm gear and handle 9 is connected to the connection section 6 at one side, so that rotation of the handle 9 causes rotation of the mounting loop 8 about the horizontal pivot axis (elevation). The handle 9 as shown for this embodiment is a crank handle, but could be a knob, or any other suitable type of handle.
(33) Eight mounting bearings 15 are connected to the front face of the mounting loop 8, arranged in pairs at substantially even intervals from one end to the other of the mounting loop, as shown in
(34) The material from which the bearings 15 are formed is acetyl.
(35) The launching section 3 is mounted to the base section 2 in use, as described in detail below.
(36) Launching Section
(37) The launching section 3 has a central frame 10. In the preferred embodiment, this is formed from aluminium, but could be formed from steel, plastic or any other suitable material. The frame has a central circular tunnel or aperture 11, having an entry ring at the rear (where the balls enter) that has a diameter of substantially 23 cm, and 26.5 cm at the front side (where the ball exits), with the frame extending each side of the central aperture 11. A pair of driving or launching wheels 12 are mounted on the frame 10, each side of the aperture 11. The launching wheels 12 are cylindrical and have a diameter several times their height. The launching wheels 12 extend slightly inwards into the aperture 11 from the sides of the aperture 11. The launching wheels 12 can be moved inwards and outwards, either linked, or independently, to alter the distance between the inner sides of the launching wheels 12 within the aperture 11, and the distance which the launching wheels 12 extend into the aperture 11. In this embodiment, each of the launching wheels are mounted on rails, the rails held in place by bolts 19 once in the desired position. Alternatively, the rails could be held in place by a quick-release clamp or clamps so that the distance can be adjusted. In this embodiment, the distance between the inner rims or firing rims of the wheels can be altered or adjusted between 15 cm and 17.5 cm. The launching wheels are rotationally connected to the frame 10, the axis of rotation of each of the launching wheels perpendicular to the central axis of the aperture 11 (i.e. if the aperture is horizontally aligned, the rotational axes of the launching wheels 12 will be vertically aligned). The launching wheels 12 are driven by motors 16 located on the frame 10, one motor for each of the launching wheels 12, the motors 16 located under the launching wheels and on/across the pivot axis of the associated launching wheel. The motors 16 are connected to the launching wheels 12 via spindles 20 so that these rotate in opposite directions (viewed from the rear and above, the left-hand wheel rotates anti-clockwise, and the right-hand wheel rotates clockwise), so that a ball will be driven along and through the aperture 11 as it passes into the aperture 11 and contacts the launching wheels 12. The motors 16 are powered by a battery or batteries mounted on the base section 2, connected to the motor(s) via wires. The battery is preferably a 12V car battery or similar. The speed of the motor(s) can be adjusted to alter the speed of rotation of the launching wheels 12 via a control unit 22 also mounted on the base section 2. The motors in a first embodiment rated up to 200 W and 3000 rpm. However, more powerful motors can be used to allow speeds of 4000 rpm or greater. The control unit 22 is shown in
(38) As shown in
(39) In this embodiment, each of the launching wheels is substantially 8.9 inches in diameter, but can be between 22 and 27 cm.
(40) An alternate form of surface coating 42 can be used, as shown in
(41) As shown in
(42) The launching section 3 is mounted to the base section 2 by slotting the ring 13 into the bearings 15 from the top. The diameter of the ring 13 and the position of the bearings 15 on the mounting loop 8 are equivalent, so that the edge of the ring 13 contacts the smaller central section of each of the bearings 15 once slotted in.
(43) The bearings 15 allow the launching section 3 to be rotated from side-to-side around the central axis of the aperture 11. The limits of rotation each way are substantially around 90 degrees. That is, when the axis of the aperture is aligned horizontally, the frame 10 can be rotated about this central axis from a horizontal position where the frame extends horizontally to each side of the aperture, in either a clockwise or counter-clockwise direction, with the frame rotatable through a range of movement at least sufficient to allow the frame to extend substantially vertically at either end of the clockwise or counter-clockwise movement. This can be achieved by pushing or pulling on the frame at each side so that the frame 10 rotates on the rollers. A rotation handle 17b is connected to and extends from the frame at one side to allow a user to rotate the frame 10 around a vertical axis. A swivel handle 17a extends from one side of the frame 10 to allow the launching section 3 to be rotated from side-to-side around the central axis of the aperture 11. The upper part of the frame 10 is in use enclosed in a housing or casing 14. In an embodiment this can have a an aperture in the top surface to allow a user to grip the housing around the edge of the aperture with their hand to position or remove the launching section 3 from the base section, for transport or storage.
(44) The casing 14 is removable from the frame 10 so that the launching wheels 12 can be accessed.
(45) As shown in
(46) Ball Feed
(47) As shown in
(48) A first form of ball feed 24 is shown in
(49) In a second form, as shown in
(50) The cloth is connected to the rear of the full tube section as follows, and as shown in
(51) In use, a user can assemble the device 1 and make this ready by connecting the launching section 3 to the base section 4 in the manner described above, and then wheeling the device 1 to the required location (alternatively, the two parts can be separately transported to the required location and then assembled). The required adjustments are made: the launching wheels 12 are moved to the correct separation, the motor(s) is/are set to the required speed, the launching section 3 is adjusted to the required angles in both the vertical and horizontal planes by way of rotation on the mounting pole 5, and the handles 7, 9, and the frame 10 is rotated as required around the aperture axis by way of the handle 17. Balls are then fed into the aperture, with these driven through the aperture 11 by the launching wheels 12, to be propelled out or thrown from the front of the launching section 3. The balls are driven or propelled linearly through the launching sectionthat is, along a linear axis. Once clear of the device 1, gravity and ambient conditions (e.g. wind, atmosphere) will act on the ball to change it's trajectory, but the initial propulsion through the device is linear. Depending on the angles of adjustment of the launching section, and the speed of the launching wheels, the balls will have different flight characteristics. A user can choose different speeds and directions of delivery, and can change between deliveries that have left spin, right spin, top and back spin. These spins create commonly observed deliveries such as outswingers, inswingers, curling free kicks, dipping shots and lofted passes. All types of spin used in games (sidespin, topspin, backspin and knuckleballs) can be accurately simulated.
(52) The launching wheels can be spun at up to 4000 rpm with a motor of the appropriate power selected for and used with the device. This allows shots to be delivered with speeds from 5 mph up to 95 mph. Different elevations of ball flight can be achieved, with a user controlling the launch angle from angles of substantially 10 degrees to +35 degrees to the horizontal plane, by altering the angle of the mounting loop 8 using the worm gear handle 9. 35 degrees upwards allows for long shots, and 10 degrees downwards allows for ground shots and bouncer ball replication. The launching wheels in the preferred embodiment can be independently controlled up to a speed of substantially 4000 rpm, or the wheels can be slaved to achieve identical rotation speeds. Different rotations speeds allow balls to be launched with spin.
(53) The ability to alter the distance that firing wheels are situated apart allows the device 1 to accommodate internationally accepted football sizes (i.e. size 3 (circumference of 23-24 inches), futsal (circumference of 24-25 inches), size 4 (circumference of 25-26 inches), and size 5 (circumference of 27-28 inches)). This allows for training from six-year old up to adult. Size 3 balls are the smallest balls and are generally used for children under the age of 8. These balls are generally 23-24 inches in circumference and weigh between 11-12 ounces. Size 4 balls are used for players between the ages of 8-12, and weigh between 12-13 ounces and have a circumference of 25-26 inches. Size 5 is the international standard match ball for all ages 12 and older, including all adult play. The size 5 ball weighs between 14-16 ounces with a circumference of 27-28 inches.
(54) As the launching section or head is rotatable about the central axis of the aperture 11, the axis remains stationary and does not move from side to side around an offset pivot point or axis. This is highly advantageous as it allows adjustments or minor changes to be made to particular shots, and for any change to be made with greater precision than would otherwise be possible. This is also highly advantageous if a ball hopper or feeder is used, as the connection between the feeder and the aperture does not have to movethe ball exit of the hopper does not have to move with or chase the aperture.
(55) A training device 1 according to the invention is advantageous as the launching section can be rotated around the axis of the aperture through 180 degrees (from vertical one way to vertical the other) extremely quicklyin around two seconds, using a single hand only. This has the advantage, among others, of allowing users to take advantage of the Magnus Effect with regards to the flight of the ball, and when this is combined with a set wheel speed it can immediately change the place of delivery of the ball without needing to change the relative wheel speeds, and without resorting to the use of pulling out pins, unscrewing clamps or anything else. Different types of spin can be imparted on the ball if the firing wheels rotate at differing speeds, and this can be combined with the position of the firing wheels (by rotation around the aperture axis) to create a wide variety of ball flight characteristics and spin types. The output is the ability to create top and back spin, side spin in both directions and anything in between.
(56) All of the functionality of the machine to define ball delivery can be used quickly, in parallel as well as interchangeably. For example a skilled user could launch a ball to the left with top spin and within a short space of time such as around three to four seconds launch a ball to the right with backspin.
(57) Balls are delivered consistently to the same designated spot at the same speed. Variations in ball flight will only occur due to differing inflation pressures or different panel arrangements that affect the ball's aerodynamics (known as the Magnus effect). This means that every ball delivered from a corner, cross, free kick or shot for example is a good ball for coaches to facilitate training and practice.
(58) The use of a 12V battery as outlined above has been found to deliver over 5 hours of field play when fully charged. The battery can be easily swapped out for a fresh battery, to allow the machine to be used for up to ten hours constant player training over the course of the day. Generally, batteries of this type take around five hours to fully discharge.
(59) Using the device 1 alleviates the present need for coaches to manually deliver balls to players. This allows coaches to concentrate more on improving the techniques and core skills of their squads rather than concentrating on how to deliver balls to them. This not only benefits players, but it also lessens the impact of RSI on coaches knees and backs in particular, or any other type of injury.
(60) The device 1 can be disassembled as outlined above, with a user detaching the launching section from the base section for transportation or storage. This enables a user to fit the device 1 into a small area such as the boot of a car, if needed. The frame design keeps the weight low. The product can separate into two parts and the maximum weight of each is around 25 Kg. Separation into two parts also helps with portability.
(61) Additional items can be used with the device 1 as required. For example, an automatic ball feeder and hopper, a control system that can be set to fire shots randomly or semi-randomly (e.g. within or towards a set area such as for example a goal mouth, a remote control, and a real-time video camera feed for player analysis.
(62) In variations of the embodiment described above, the frame of the launching section 3 could be formed so that a u-channel or similar is formed in the launching section in place of the aperture. Where aperture is used in this specification, this should be taken as a closed tunnel-type aperture, as for the embodiment described above, or as a open-topped u-channel or similar. In the embodiment described above, a pair of launching wheels are used. Three or more wheels could be used in variations, or any suitable launching means could be used that contacts the ball at spaced apart points or locations to drive or launch the ball.
(63) In the embodiment described above, the base section forms a supporting means for the launching section. The launching section could be mounted on any suitable type of supporting means.
(64) The ring 14 as described above for the preferred embodiment is a full circular loop. This could also be a circular segment, either with a centre co-located with the axis of the aperture, or offset (the diameter of the circle of which the segment forms a part could be significantly larger than the diameter of the aperture, so that the angle is adjusted more by rocking than by rotation).